:root {
    /* Background - Light Theme */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e2e8f0;
    --bg-hover: #f1f5f9;

    /* Colors */
    --primary: #0891b2;
    --primary-light: #06b6d4;
    --primary-dark: #0e7490;
    --accent: #7c3aed;
    --accent-light: #8b5cf6;
    --success: #059669;
    --success-light: #10b981;
    --warning: #d97706;
    --warning-light: #f59e0b;
    --danger: #dc2626;
    --danger-light: #ef4444;
    --info: #2563eb;

    /* Text */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-dark: #94a3b8;
    /* U1: alias mới — --text-subtle thay thế --text-dark (semantic đúng hơn) */
    --text-subtle: #94a3b8;

    /* Border */
    --border: rgba(0, 0, 0, 0.08);
    --border-light: rgba(0, 0, 0, 0.12);

    /* Glass - Light */
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);

    /* Gradient */
    --gradient-primary: linear-gradient(135deg, #0891b2, #7c3aed);
    --gradient-success: linear-gradient(135deg, #059669, #0891b2);
    --gradient-warning: linear-gradient(135deg, #d97706, #dc2626);
    --gradient-accent: linear-gradient(135deg, #7c3aed, #db2777);

    /* Sizes */
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    /* U1: thêm expressive (ease-out-quad) — phù hợp UI y tế, không dùng spring bounce */
    --transition-expressive: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
    /* U1: thêm shadow-xl cho modal, dropdown nổi bật */
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15), 0 8px 16px rgba(0, 0, 0, 0.08);
    --shadow-glow-primary: 0 0 20px rgba(8, 145, 178, 0.2);
    --shadow-glow-accent: 0 0 20px rgba(124, 58, 237, 0.2);

    /* P3.1 — Typography scale (base: 15px từ U2) */
    /* U1: thêm --text-xxs cho badge micro, label cực nhỏ */
    --text-xxs:  0.6667rem; /* 10px @ 15px base */
    --text-xs:   0.7333rem; /* 11px @ 15px base */
    --text-sm:   0.8667rem; /* 13px @ 15px base */
    --text-base: 0.9333rem; /* 14px @ 15px base */
    --text-lg:   1.0667rem; /* 16px @ 15px base */
    --text-xl:   1.3333rem; /* 20px @ 15px base */
    --text-2xl:  1.6rem;    /* 24px @ 15px base */
    --text-3xl:  2rem;      /* 30px @ 15px base */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semi:   600;
    --font-weight-bold:   700;
    --font-weight-black:  800;
    --line-height-tight:  1.25;
    --line-height-normal: 1.5;
    --line-height-loose:  1.75;

    /* P3.1 — Spacing scale (4px base) */
    --space-1:  4px;
    --space-2:  8px;
    --space-3:  12px;
    --space-4:  16px;
    --space-5:  20px;
    --space-6:  24px;
    --space-8:  32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;

    /* P3.1 — Z-index scale */
    --z-dropdown: 100;
    --z-sidebar:  200;
    --z-overlay:  300;
    --z-modal:    400;
    --z-toast:    500;

    /* U1 — Surface tokens (Material Design 3 inspired) */
    --surface:           #ffffff;
    --surface-variant:   #f1f5f9;
    --surface-container: #f8fafc;
    --on-surface:        var(--text-primary);
    --on-surface-muted:  var(--text-muted);
}

/* ===== DARK MODE — [data-theme="dark"] ===== */
/* Áp dụng khi user chọn toggle hoặc OS preference (set bởi anti-flash script trong <head>) */
[data-theme="dark"] {
    /* Backgrounds — deep navy (không dùng pure black, dễ mắt hơn) */
    --bg-primary:    #0d1117;
    --bg-secondary:  #161b22;
    --bg-tertiary:   #21262d;
    --bg-hover:      #30363d;

    /* Border */
    --border:        rgba(255, 255, 255, 0.08);
    --border-light:  rgba(255, 255, 255, 0.12);

    /* Glass — dark variant */
    --glass-bg:     rgba(22, 27, 34, 0.85);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.2);

    /* Text — đảm bảo contrast ≥ 4.5:1 trên bg-primary (#0d1117) */
    --text-primary:   #f0f6fc;   /* contrast ~14:1 ✅ */
    --text-secondary: #c9d1d9;   /* contrast ~8:1  ✅ */
    --text-muted:     #8b949e;   /* contrast ~4.6:1 ✅ AA */
    --text-dark:      #6e7681;   /* giữ nguyên cho backward compat */
    --text-subtle:    #6e7681;   /* decorative only */

    /* Brand — làm sáng hơn để readable trên dark bg */
    --primary:        #38bdf8;   /* contrast ~5.2:1 ✅ AA */
    --primary-light:  #7dd3fc;
    --primary-dark:   #0369a1;
    --accent:         #a78bfa;   /* contrast ~5.8:1 ✅ AA */
    --accent-light:   #c4b5fd;
    --success:        #34d399;   /* contrast ~6.1:1 ✅ AA */
    --success-light:  #6ee7b7;
    --warning:        #fbbf24;   /* contrast ~7.3:1 ✅ AA */
    --warning-light:  #fcd34d;
    --danger:         #f87171;   /* contrast ~5.5:1 ✅ AA */
    --danger-light:   #fca5a5;
    --info:           #60a5fa;

    /* Shadows — đậm hơn trên dark background */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.7), 0 8px 16px rgba(0, 0, 0, 0.4);
    --shadow-glow-primary: 0 0 20px rgba(56, 189, 248, 0.25);
    --shadow-glow-accent:  0 0 20px rgba(167, 139, 250, 0.25);

    /* Gradients — dùng màu SÁNG để -webkit-text-fill-color readable trên dark bg */
    --gradient-primary: linear-gradient(135deg, #38bdf8, #a78bfa);
    --gradient-success: linear-gradient(135deg, #34d399, #38bdf8);
    --gradient-warning: linear-gradient(135deg, #fbbf24, #f87171);
    --gradient-accent:  linear-gradient(135deg, #a78bfa, #f472b6);

    /* Surface tokens */
    --surface:           #161b22;
    --surface-variant:   #21262d;
    --surface-container: #0d1117;
    --on-surface:        var(--text-primary);
    --on-surface-muted:  var(--text-muted);
}
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* A1 — Accessibility: keyboard focus ring (only shown on keyboard nav, not mouse click) */
:focus { outline: none; }
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 2px;
}

/* U2: 14px → 15px — cải thiện readability, WCAG 1.4.4 */
html { font-size: 15px; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    /* U2: 1.6 → 1.65 — tăng khoảng cách dòng để dễ đọc hơn */
    line-height: 1.65;
    overflow: hidden;
    height: 100vh;
}

/* U2: Selection color — brand-aware */
::selection {
    background: var(--primary);
    color: #fff;
}
::-moz-selection {
    background: var(--primary);
    color: #fff;
}

#app {
    display: flex;
    height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 28px 32px;
    overflow-y: auto;
    height: 100vh;
    scroll-behavior: smooth;
}

.main-content::-webkit-scrollbar { width: 6px; }
.main-content::-webkit-scrollbar-track { background: transparent; }
.main-content::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

h1, h2, h3, h4 { font-weight: 600; color: var(--text-primary); }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow-primary);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(8, 145, 178, 0.3);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}
.btn-secondary:hover { background: var(--bg-hover); }

.btn-danger {
    background: var(--danger);
    color: white;
}
.btn-danger:hover { background: var(--danger-light); }

.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
/* U2: Button states — loading, active press, disabled */
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn:disabled, .btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}
.btn.loading {
    pointer-events: none;
    opacity: 0.8;
    position: relative;
}
.btn.loading > *:not(.fc-spinner) { opacity: 0; }
.btn.loading .fc-spinner {
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
}
/* A3 — Accessibility: btn-icon touch target 44×44px (WCAG 2.5.5) */
.btn-icon {
    width: 44px; height: 44px; padding: 0;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--border-radius-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-muted);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.btn-icon:hover { color: var(--primary); border-color: var(--primary); }

/* Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--glass-shadow);
    transition: background var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
}
.card:hover { border-color: rgba(0,0,0,0.12); }

/* Inputs */
.form-group { margin-bottom: 16px; }
.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color var(--transition-fast);
    outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.12);
}
.form-select { cursor: pointer; }
.form-textarea { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* FormController (P1) — validation & loading states */
.fc-error {
    border-color: var(--danger) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12) !important;
}
.fc-error-msg {
    display: block;
    margin-top: 4px;
    font-size: 0.75rem;
    color: var(--danger-light, #f87171);
    font-weight: 500;
}
.fc-global-error {
    padding: 10px 14px;
    margin-bottom: 12px;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.25);
    border-radius: var(--border-radius-sm);
    color: var(--danger-light, #f87171);
    font-size: 0.85rem;
    font-weight: 500;
}
.fc-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.4);
    border-top-color: white;
    border-radius: 50%;
    animation: fc-spin 0.6s linear infinite;
    vertical-align: middle;
}
@keyframes fc-spin {
    to { transform: rotate(360deg); }
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}
.badge-primary { background: rgba(6,182,212,0.15); color: var(--primary-light); }
.badge-success { background: rgba(16,185,129,0.15); color: var(--success-light); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning-light); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger-light); }
.badge-accent { background: rgba(139,92,246,0.15); color: var(--accent-light); }
.badge-info { background: rgba(59,130,246,0.15); color: var(--info); }

/* Staff Status */
.staff-status-cell { display: flex; flex-direction: column; gap: 3px; }
.staff-status-dates { font-size: 0.7rem; color: var(--text-muted); font-style: italic; }

/* Search */
.search-box {
    position: relative;
    width: 280px;
}
.search-box input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    outline: none;
    transition: border-color var(--transition-fast);
}
.search-box input:focus { border-color: var(--primary); }
.search-box svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state svg { margin-bottom: 16px; opacity: 0.5; }
.empty-state p { font-size: 0.95rem; }

/* Table */
.table-container { overflow-x: auto; }
table {
    width: 100%;
    border-collapse: collapse;
}
thead th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}
tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}
tbody tr { transition: background var(--transition-fast); }
tbody tr:hover { background: rgba(0,0,0,0.02); }

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
/* U0 BUG-2: pulse — source of truth duy nhất (đã xóa bản trùng trong index.html) */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}
/* U0 BUG-2: shake — chuyển từ index.html inline vào đây */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px); }
    40%, 80% { transform: translateX(8px); }
}
.fade-in { animation: fadeIn 0.3s ease forwards; }
.slide-up { animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards; }

/* Utility */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-20 { gap: 20px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.text-right { text-align: right; }

@media (max-width: 1024px) {
    .main-content { margin-left: var(--sidebar-collapsed); }
    .sidebar .logo-text, .sidebar .nav-item span, .sidebar .user-details { display: none; }
    .sidebar { width: var(--sidebar-collapsed); }
    .sidebar .nav-item { justify-content: center; }
    .form-row { grid-template-columns: 1fr; }
}

/* U0 A5: prefers-reduced-motion — hỗ trợ người nhạy cảm chuyển động (WCAG 2.3.3) */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== U5: Extracted inline styles — app.js ===== */
/* Auth-checking overlay */
#auth-checking {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: var(--bg-primary);
    color: var(--text-muted);
    font-family: 'Inter', system-ui, sans-serif;
    font-size: var(--text-base, 0.9333rem);
    gap: 10px;
}
/* Spinner dùng trong auth-checking */
.fc-spinner {
    width: 20px; height: 20px;
    border: 2px solid var(--border-light);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
/* Idle warning bar */
#idle-warning-bar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 9999;
    background: linear-gradient(135deg, var(--warning), var(--danger));
    color: #fff;
    text-align: center;
    padding: 10px 16px;
    font-size: var(--text-sm, 0.8667rem);
    font-weight: 600;
    font-family: 'Inter', system-ui, sans-serif;
    animation: slideDown 0.3s ease;
    cursor: pointer;
}
/* Sidebar admin-btn row */
.sidebar-admin-btns {
    display: flex;
    gap: 6px;
    margin: 6px 0;
}
.sidebar-admin-btns .btn {
    flex: 1;
    font-size: var(--text-xxs, 0.6667rem);
}
.sidebar-full-btn {
    width: 100%;
    font-size: var(--text-xxs, 0.6667rem);
    margin: 2px 0;
}
.sidebar-full-btn-spaced {
    width: 100%;
    font-size: var(--text-xxs, 0.6667rem);
    margin: 4px 0;
}
/* logout-btn SVG icon */
.logout-btn-icon {
    vertical-align: middle;
    margin-right: 6px;
}
/* Skeleton layout */
.skeleton-row-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 12px;
}
.skeleton-card-sm { height: 80px; }
.skeleton-card-lg { height: 200px; }
.skeleton-card-top { margin: 0 0 12px; }

/* ===== U5: auth.js extracted styles ===== */
.pw-toggle-wrap { position: relative; }
.pw-toggle-wrap .form-input { padding-right: 40px; }
.pw-toggle-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 4px;
    display: flex;
    align-items: center;
}
.eye-off { display: none; }
.pw-error { color: var(--danger); font-size: var(--text-sm, 0.8667rem); margin-bottom: 8px; }
/* Auth user management table */
.auth-table-row { border-bottom: 1px solid var(--border); }
.auth-table-row.disabled { opacity: 0.5; }
.auth-td-main { padding: 6px 8px; }
.auth-td-user { padding: 6px 8px; color: var(--text-secondary); font-size: var(--text-sm, 0.8667rem); }
.auth-td-badge { padding: 6px 8px; }
.auth-td-actions { padding: 6px 8px; text-align: center; white-space: nowrap; }
.auth-badge-superadmin { background: #7c3aed; color: #fff; padding: 2px 6px; border-radius: 4px; font-size: var(--text-xxs, 0.6667rem); }
.auth-badge-admin { background: #0891b2; color: #fff; padding: 2px 6px; border-radius: 4px; font-size: var(--text-xxs, 0.6667rem); }
.auth-badge-user { background: #94a3b8; color: #fff; padding: 2px 6px; border-radius: 4px; font-size: var(--text-xxs, 0.6667rem); }
.auth-badge-disabled { background: var(--danger); color: #fff; padding: 2px 6px; border-radius: 4px; font-size: 0.65rem; }
.auth-btn-mk { font-size: var(--text-xxs, 0.6667rem); }
.auth-td-self { color: var(--text-secondary); font-size: var(--text-xs, 0.7333rem); }
/* Auth loading/empty states */
.auth-loading { text-align: center; padding: 40px; }
.auth-loading-text { margin-top: 12px; color: var(--text-secondary); }
.auth-empty { text-align: center; padding: 40px; color: var(--text-secondary); }
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-slow);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 16px 14px;
    border-bottom: 1px solid var(--border);
}

.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}
.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.logo-title {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
    line-height: 1.25;
}
.logo-subtitle {
    font-size: 0.72rem;
    color: var(--text-muted);
    display: block;
    margin-top: 2px;
    font-weight: 500;
}

.sidebar-nav {
    flex: 1;
    padding: 8px 10px;
    display: flex;
    flex-direction: column;
    gap: 1px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 9px 14px;
    border-radius: var(--border-radius-sm);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.84rem;
    font-weight: 500;
    transition: background var(--transition-fast), color var(--transition-fast), font-weight var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 0 4px 4px 0;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.nav-item:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

/* U3: Active pill — thay left-border bằng pill background nhất quán hơn */
.nav-item.active {
    color: var(--primary);
    background: rgba(8, 145, 178, 0.12);
    font-weight: 600;
}
/* Giữ ::before cho transition nhưng ẩn đi — chỉ dùng pill */
.nav-item.active::before { opacity: 0; }
.nav-item.active svg { color: var(--primary); }

.sidebar-footer {
    padding: 10px 12px;
    border-top: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.78rem;
    color: white;
    flex-shrink: 0;
}

.user-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
}
.user-role {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: block;
}

/* ===== U2: Dark Mode Toggle Button ===== */
.theme-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
    flex-shrink: 0;
    margin-bottom: 8px;
}
.theme-toggle-btn:hover {
    background: var(--bg-hover);
    color: var(--primary);
    border-color: var(--primary);
}
.theme-toggle-btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
/* Trạng thái đang bật dark mode */
.theme-toggle-btn[aria-pressed="true"] {
    background: rgba(56, 189, 248, 0.12);
    color: var(--primary);
    border-color: var(--primary);
}
/* Ẩn trên mobile bottom nav (không có sidebar-footer) */
@media (max-width: 768px) {
    .theme-toggle-btn { display: none; }
}

/* ===== U2: Sidebar theme area wrapper (icon + label) ===== */
.sidebar-theme-area {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 0;
    margin-bottom: 4px;
}
.theme-toggle-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
    transition: color var(--transition-fast);
    /* Ẩn khi sidebar collapsed (chỉ hiện icon) */
    overflow: hidden;
}
/* Sidebar collapsed: ẩn label */
@media (max-width: 1024px) {
    .theme-toggle-label { display: none; }
}
/* Mobile: ẩn toàn bộ khu vực (bottom nav không có footer) */
@media (max-width: 768px) {
    .sidebar-theme-area { display: none; }
}
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(6,182,212,0.12) 0%, transparent 70%);
    top: -100px; right: -100px;
    border-radius: 50%;
}
.login-page::after {
    content: '';
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(139,92,246,0.1) 0%, transparent 70%);
    bottom: -80px; left: -80px;
    border-radius: 50%;
}

/* Nút toggle theme góc trên phải màn hình login */
.login-theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: var(--shadow-sm);
}
.login-theme-toggle:hover {
    background: var(--bg-tertiary);
    color: var(--primary);
    box-shadow: var(--shadow-md);
}

.login-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    position: relative;
    z-index: 1;
    animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.login-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 32px;
}
.login-logo-icon {
    width: 100px; height: 100px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.login-logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.login-logo h1 {
    font-size: 1.6rem;
    font-weight: 700;
    text-align: center;
    text-wrap: balance;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.login-logo p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 6px;
    font-weight: 500;
}

.login-form .form-group { margin-bottom: 20px; }
.login-form .form-input {
    padding: 14px 16px;
    font-size: 0.95rem;
    background: var(--bg-primary);
}
.login-form .form-label {
    margin-bottom: 8px;
    font-size: 0.82rem;
}

.login-btn {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius-sm);
    background: var(--gradient-primary);
    color: white;
    cursor: pointer;
    transition: background var(--transition-normal), color var(--transition-normal), box-shadow var(--transition-normal);
    box-shadow: var(--shadow-glow-primary);
    font-family: inherit;
}
.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(8,145,178,0.3);
}
.login-btn:active { transform: translateY(0); }

.login-error {
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.3);
    color: var(--danger-light);
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    margin-bottom: 16px;
    display: none;
    animation: fadeIn 0.2s ease;
}
.login-error.show { display: block; }

.login-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-subtle);
    font-size: 0.78rem;
}

.login-info {
    margin-top: 20px;
    padding: 14px;
    background: rgba(6,182,212,0.08);
    border: 1px solid rgba(6,182,212,0.15);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    color: var(--text-muted);
}
.login-info strong { color: var(--primary-light); }

/* Logged-in user bar in sidebar */
.user-info { cursor: pointer; position: relative; }
.user-info:hover .user-avatar { transform: scale(1.05); }
.logout-btn {
    width: 100%;
    margin-top: 8px;
    padding: 8px;
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.2);
    border-radius: var(--border-radius-sm);
    color: var(--danger-light);
    font-family: inherit;
    font-size: 0.78rem;
    cursor: pointer;
    transition: color var(--transition-fast);
    display: none;
}
.logout-btn.show { display: block; }
.logout-btn:hover { background: rgba(239,68,68,0.2); }
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}
.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    /* U3: 780px → 860px + accent top border */
    border-top: 3px solid var(--primary);
    width: 90%;
    max-width: 860px;
    max-height: 85vh;
    overflow-y: auto;
    /* U3: shadow-xl cho modal nổi bật hơn */
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
/* U3: Size variants */
.modal.modal-sm { max-width: 480px; }
.modal.modal-lg { max-width: 1000px; }

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    /* U3: sticky header khi content dài */
    position: sticky;
    top: 0;
    background: var(--bg-secondary);
    z-index: 1;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}
.modal-title { font-size: 1.1rem; font-weight: 600; }
.modal-close {
    /* U0: 32px → 44×44px (WCAG 2.5.5 touch target) */
    width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    border: none; background: var(--bg-tertiary);
    border-radius: 50%; color: var(--text-muted);
    cursor: pointer; font-size: 1.2rem;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.modal-close:hover { background: var(--danger); color: white; }
.modal-body { padding: 20px 24px; }
.modal-footer {
    display: flex; justify-content: flex-end; gap: 10px;
    padding: 16px 24px; border-top: 1px solid var(--border);
    /* U3: sticky footer */
    position: sticky;
    bottom: 0;
    background: var(--bg-secondary);
    z-index: 1;
}
/* ===== COMPONENTS.CSS — Unified Component Library =====
 * U3: Thư viện component tập trung. Thêm vào build-css.sh sau modal.css.
 * Sử dụng CSS variables từ variables.css — tự hỗ trợ dark mode.
 * ======================================================= */

/* ── Badge ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 50px;
    font-size: var(--text-xxs, 0.6667rem);
    font-weight: 600;
    letter-spacing: 0.3px;
    white-space: nowrap;
    line-height: 1.5;
}
.badge-primary { background: rgba(8,145,178,0.12);    color: var(--primary); }
.badge-accent  { background: rgba(124,58,237,0.12);   color: var(--accent); }
.badge-success { background: rgba(5,150,105,0.12);    color: var(--success); }
.badge-warning { background: rgba(217,119,6,0.12);    color: var(--warning); }
.badge-danger  { background: rgba(220,38,38,0.12);    color: var(--danger); }
.badge-neutral { background: var(--bg-tertiary);       color: var(--text-muted); }
/* Solid variants */
.badge-solid-primary { background: var(--primary); color: #fff; }
.badge-solid-success { background: var(--success); color: #fff; }
.badge-solid-danger  { background: var(--danger);  color: #fff; }

/* ── Avatar ── */
.avatar {
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
    background: var(--gradient-accent);
    font-size: var(--text-xs, 0.7333rem);
    overflow: hidden;
}
.avatar-sm  { width: 28px; height: 28px; font-size: var(--text-xxs, 0.6667rem); }
.avatar-md  { width: 36px; height: 36px; }
.avatar-lg  { width: 48px; height: 48px; font-size: var(--text-sm, 0.8667rem); }
.avatar-xl  { width: 64px; height: 64px; font-size: var(--text-base, 0.9333rem); }
.avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }

/* ── Data Table ── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm, 0.8667rem);
}
.data-table thead th {
    padding: 10px 14px;
    text-align: left;
    font-size: var(--text-xxs, 0.6667rem);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    border-bottom: 2px solid var(--border);
    background: var(--surface-variant, var(--bg-hover));
    position: sticky;
    top: 0;
    z-index: 1;
}
.data-table tbody td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    vertical-align: middle;
}
.data-table tbody tr { transition: background var(--transition-fast); }
.data-table tbody tr:hover { background: var(--bg-hover); }
/* Zebra stripe (opt-in) */
.data-table.striped tbody tr:nth-child(even) { background: var(--surface-variant, var(--bg-hover)); }

/* ── Chip (filter) ── */
.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 50px;
    border: 1px solid var(--border);
    background: var(--surface-variant, var(--bg-tertiary));
    color: var(--text-secondary);
    font-size: var(--text-xs, 0.7333rem);
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
    user-select: none;
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.active {
    background: rgba(8,145,178,0.12);
    border-color: var(--primary);
    color: var(--primary);
    font-weight: 600;
}
.chip-remove {
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--text-muted);
    color: #fff;
    font-size: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    padding: 0;
    line-height: 1;
}

/* ── Progress Bar ── */
.progress {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 50px;
    overflow: hidden;
}
.progress-bar {
    height: 100%;
    border-radius: 50px;
    background: var(--gradient-primary);
    transition: width var(--transition-expressive, 0.3s ease);
}
.progress-bar.success { background: var(--success); }
.progress-bar.warning { background: var(--warning); }
.progress-bar.danger  { background: var(--danger); }
/* Labeled progress */
.progress-labeled {
    display: flex;
    align-items: center;
    gap: 10px;
}
.progress-labeled .progress { flex: 1; }
.progress-label {
    font-size: var(--text-xs, 0.7333rem);
    font-weight: 600;
    color: var(--text-muted);
    min-width: 36px;
    text-align: right;
}

/* ── Stat Widget (dùng trong dashboard sidebar) ── */
.stat-widget {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--surface-variant, var(--bg-hover));
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border);
}
.stat-widget-icon {
    width: 40px; height: 40px;
    border-radius: var(--border-radius-sm);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.stat-widget-body { flex: 1; min-width: 0; }
.stat-widget-value {
    font-size: var(--text-lg, 1.0667rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}
.stat-widget-label {
    font-size: var(--text-xxs, 0.6667rem);
    color: var(--text-muted);
    margin-top: 3px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

/* ── Divider ── */
.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 16px 0;
}
.divider-vertical {
    display: inline-block;
    width: 1px;
    height: 1em;
    background: var(--border);
    margin: 0 8px;
    vertical-align: middle;
}

/* ── Empty State ── */
.empty-state-icon {
    width: 56px; height: 56px;
    border-radius: var(--border-radius);
    background: var(--surface-variant, var(--bg-tertiary));
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
    color: var(--text-muted);
    opacity: 0.7;
}
.empty-state-title {
    font-size: var(--text-base, 0.9333rem);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.empty-state-desc {
    font-size: var(--text-sm, 0.8667rem);
    color: var(--text-muted);
}

/* ── Export-safe light theme (dùng khi html2canvas render ảnh) ── */
.export-light {
    --bg-primary:    #f8fafc !important;
    --bg-secondary:  #ffffff !important;
    --bg-tertiary:   #e2e8f0 !important;
    --text-primary:  #0f172a !important;
    --text-secondary:#475569 !important;
    --text-muted:    #64748b !important;
    --border:        rgba(0,0,0,0.08) !important;
    color-scheme: light !important;
}

/* ===== U5: Extracted — audit-log.js ===== */
/* Inline log detail span colors */
.al-text-muted-sm {
    color: var(--text-muted);
    font-size: var(--text-sm, 0.8667rem);
}
.al-text-danger {
    color: var(--danger);
    font-size: var(--text-sm, 0.8667rem);
}
.al-text-warning {
    color: var(--warning);
    font-size: var(--text-sm, 0.8667rem);
}
.al-text-accent {
    color: var(--accent);
    font-size: var(--text-sm, 0.8667rem);
}
/* Audit log table */
.al-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm, 0.8667rem);
}
.al-table thead tr {
    border-bottom: 2px solid var(--border);
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 1;
}
.al-table th {
    padding: 6px 8px;
    text-align: left;
}
.al-table tr {
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}
.al-table tr.al-row-login { opacity: 0.65; }
.al-td-time {
    padding: 5px 8px;
    font-size: var(--text-xs, 0.7333rem);
    color: var(--text-muted);
    white-space: nowrap;
}
.al-td-user {
    padding: 5px 8px;
    font-size: var(--text-sm, 0.8667rem);
    font-weight: 600;
    white-space: nowrap;
}
.al-td-action {
    padding: 5px 8px;
    font-size: var(--text-sm, 0.8667rem);
    white-space: nowrap;
}
.al-td-detail {
    padding: 5px 8px;
    font-size: var(--text-base, 0.9333rem);
    max-width: 320px;
}
/* Audit log filter row */
.al-filter-row {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}
.al-scroll-area {
    max-height: 60vh;
    overflow-y: auto;
}
/* Audit log: backup detail box */
.al-backup-box {
    margin-top: 5px;
    padding: 6px 10px;
    background: rgba(245,158,11,0.08);
    border: 1px solid rgba(245,158,11,0.3);
    border-radius: 6px;
    font-size: var(--text-xs, 0.7333rem);
    color: var(--text-secondary);
}
/* ===== TOAST NOTIFICATIONS ===== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    min-width: 320px;
    max-width: 420px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.08);
    border-left: 4px solid var(--primary);
    pointer-events: auto;
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.hide {
    transform: translateX(120%);
    opacity: 0;
}

.toast-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    margin-top: 1px;
}

.toast-body {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.toast-message {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
    word-break: break-word;
}

.toast-close {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 2px;
    font-size: 16px;
    line-height: 1;
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.toast-close:hover {
    opacity: 1;
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 4px;
    right: 0;
    height: 3px;
    border-radius: 0 0 var(--border-radius-sm) 0;
    overflow: hidden;
}

.toast-progress-bar {
    height: 100%;
    width: 100%;
    transform-origin: left;
    animation: toast-progress-shrink linear forwards;
}

@keyframes toast-progress-shrink {
    from { transform: scaleX(1); }
    to { transform: scaleX(0); }
}

/* Toast types */
.toast--success { border-left-color: var(--success); }
.toast--success .toast-icon { background: #ecfdf5; color: var(--success); }
.toast--success .toast-progress-bar { background: var(--success); }

.toast--error { border-left-color: var(--danger); }
.toast--error .toast-icon { background: #fef2f2; color: var(--danger); }
.toast--error .toast-progress-bar { background: var(--danger); }

.toast--warning { border-left-color: var(--warning); }
.toast--warning .toast-icon { background: #fffbeb; color: var(--warning); }
.toast--warning .toast-progress-bar { background: var(--warning); }

.toast--info { border-left-color: var(--info); }
.toast--info .toast-icon { background: #eff6ff; color: var(--info); }
.toast--info .toast-progress-bar { background: var(--info); }

/* ===== CONFIRM DIALOG ===== */
.confirm-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.confirm-overlay.show {
    opacity: 1;
}

.confirm-dialog {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 28px;
    max-width: 420px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.confirm-overlay.show .confirm-dialog {
    transform: scale(1) translateY(0);
}

.confirm-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
}

.confirm-icon--danger { background: #fef2f2; color: var(--danger); }
.confirm-icon--warning { background: #fffbeb; color: var(--warning); }
.confirm-icon--info { background: #eff6ff; color: var(--info); }

.confirm-title {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.confirm-message {
    text-align: center;
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 24px;
}

.confirm-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.confirm-actions .btn {
    min-width: 110px;
    padding: 10px 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.confirm-btn-cancel {
    background: var(--bg-hover);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
}

.confirm-btn-cancel:hover {
    background: var(--bg-tertiary);
}

.confirm-btn-danger {
    background: var(--danger);
    border: 1px solid var(--danger);
    color: #fff;
}

.confirm-btn-danger:hover {
    background: var(--danger-light);
    box-shadow: 0 4px 12px rgba(220,38,38,0.3);
}

.confirm-btn-primary {
    background: var(--primary);
    border: 1px solid var(--primary);
    color: #fff;
}

.confirm-btn-primary:hover {
    background: var(--primary-light);
    box-shadow: 0 4px 12px rgba(8,145,178,0.3);
}

/* ===== LOADING STATE ===== */
.page-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    gap: 16px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, var(--bg-hover) 25%, var(--bg-tertiary) 50%, var(--bg-hover) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
    border-radius: var(--border-radius-sm);
}

@keyframes skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-card {
    height: 120px;
    border-radius: var(--border-radius);
}

.skeleton-row {
    height: 48px;
    margin-bottom: 8px;
}

.skeleton-text {
    height: 14px;
    width: 60%;
    margin-bottom: 8px;
}

.skeleton-title {
    height: 20px;
    width: 40%;
    margin-bottom: 16px;
}

/* ===== Mobile adjustments ===== */
@media (max-width: 768px) {
    .toast-container {
        top: auto;
        bottom: 20px;
        right: 10px;
        left: 10px;
    }

    .toast {
        min-width: unset;
        max-width: unset;
        width: 100%;
    }

    .confirm-dialog {
        padding: 24px 20px;
    }
}
/* ===== GLOBAL SEARCH (Cmd+K) ===== */
.search-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(15,23,42,0.55);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    padding-top: 12vh;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}
.search-overlay.active {
    opacity: 1;
    visibility: visible;
}
.search-container {
    width: 560px;
    max-width: 92vw;
    background: var(--bg-secondary);
    border-radius: 16px;
    box-shadow: 0 25px 60px rgba(0,0,0,0.3);
    overflow: hidden;
    max-height: 480px;
    display: flex;
    flex-direction: column;
    transform: translateY(-10px) scale(0.97);
    transition: transform 0.2s ease;
}
.search-overlay.active .search-container {
    transform: translateY(0) scale(1);
}
.search-input-wrap {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}
.search-input-wrap svg {
    width: 20px; height: 20px;
    color: var(--text-muted);
    flex-shrink: 0;
}
.search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
    font-weight: 500;
    background: transparent;
    color: var(--text-primary);
    font-family: inherit;
}
.search-input::placeholder {
    color: var(--text-muted);
}
.search-kbd {
    font-size: 0.7rem;
    padding: 3px 7px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
    flex-shrink: 0;
    font-family: inherit;
}
.search-results {
    overflow-y: auto;
    flex: 1;
    padding: 8px;
}
.search-results-empty {
    padding: 32px 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.88rem;
}
.search-group-label {
    padding: 8px 12px 4px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    margin: 2px 0;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.1s ease;
}
.search-result-item:hover,
.search-result-item.focused {
    background: var(--bg-tertiary);
}
.search-result-icon {
    width: 36px; height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.search-result-info { flex: 1; min-width: 0; }
.search-result-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.search-result-name mark {
    background: rgba(6,182,212,0.2);
    color: var(--primary);
    border-radius: 2px;
    padding: 0 1px;
}
.search-result-detail {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 1px;
}
.search-result-badge {
    font-size: 0.68rem;
    padding: 3px 8px;
    border-radius: 10px;
    font-weight: 600;
    flex-shrink: 0;
}
.search-footer {
    padding: 10px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 12px;
    font-size: 0.7rem;
    color: var(--text-muted);
    align-items: center;
}
.search-footer kbd {
    font-size: 0.68rem;
    padding: 2px 5px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 3px;
    font-family: inherit;
}

/* Sidebar search button */
.sidebar-search-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 14px;
    margin: 4px 0 6px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    color: var(--text-muted);
    font-size: 0.78rem;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
    font-family: inherit;
}
.sidebar-search-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.sidebar-search-btn svg {
    width: 14px; height: 14px;
}
.sidebar-search-btn .search-shortcut {
    margin-left: auto;
    font-size: 0.65rem;
    padding: 2px 5px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 3px;
}

@media (max-width: 768px) {
    .search-container { max-width: 95vw; border-radius: 12px; }
    .search-overlay { padding-top: 5vh; }
    .sidebar-search-btn .search-shortcut { display: none; }
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 22px;
    position: relative;
    overflow: hidden;
    transition: box-shadow var(--transition-normal), transform var(--transition-normal);
    /* U3: border-top gradient accent */
    border-top: 3px solid transparent;
}
.stat-card::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 80px; height: 80px;
    border-radius: 50%;
    opacity: 0.08;
    transform: translate(20px, -20px);
}
/* U3: Mỗi card màu border-top khác nhau */
.stat-card:nth-child(1) { border-top-color: var(--primary); }
.stat-card:nth-child(2) { border-top-color: var(--accent); }
.stat-card:nth-child(3) { border-top-color: var(--success); }
.stat-card:nth-child(4) { border-top-color: var(--warning); }
.stat-card:nth-child(1)::after { background: var(--primary); }
.stat-card:nth-child(2)::after { background: var(--accent); }
.stat-card:nth-child(3)::after { background: var(--success); }
.stat-card:nth-child(4)::after { background: var(--warning); }

/* U3: Hover dùng shadow-lg thay vì translateY */
.stat-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}
.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.stat-icon {
    width: 42px; height: 42px;
    border-radius: var(--border-radius-sm);
    display: flex; align-items: center; justify-content: center;
}
.stat-icon.cyan   { background: rgba(6,182,212,0.15);  color: var(--primary); }
.stat-icon.purple { background: rgba(139,92,246,0.15); color: var(--accent); }
.stat-icon.green  { background: rgba(16,185,129,0.15); color: var(--success); }
.stat-icon.amber  { background: rgba(245,158,11,0.15); color: var(--warning); }
/* U0 BUG-1: Thêm red variant — dùng khi nhân sự thiếu (<80%) */
.stat-icon.red    { background: rgba(220,38,38,0.12);  color: #dc2626; }

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}
.stat-change {
    font-size: 0.8rem;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
}
.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

.dashboard-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 20px;
}

.chart-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 24px;
    /* U3: elevation sm + hover lg */
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-normal);
}
.chart-card:hover { box-shadow: var(--shadow-md); }

/* U5: Dashboard date/clock header */
.dash-header-right { text-align: right; }
.dash-date-label {
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
}
.dash-clock {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
    letter-spacing: 1px;
    margin-top: 2px;
}

/* U5: Stat value variants */
.stat-value-suffix {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
}
.stat-value-empty {
    font-size: 1.2rem;
    color: var(--text-muted);
}

/* U5: Surgery stats mini-chart */
.surgery-stats-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 0 20px 16px;
}
.surgery-stats-period-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.surgery-stats-period-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.surgery-stats-total {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}
.surgery-bar-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}
.surgery-bar-label {
    flex: 0 0 90px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.surgery-bar-track {
    flex: 1;
    height: 22px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    overflow: hidden;
}
.surgery-bar-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.3s ease;
}
.surgery-bar-count {
    flex: 0 0 28px;
    text-align: right;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* U5: Widget empty message */
.widget-empty-msg {
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 12px 0;
}

/* U5: Trend tooltip total row */
.trend-tooltip-total-row {
    border-top: 1px solid var(--border);
    padding-top: 4px;
    margin-top: 4px;
}
.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.chart-title {
    font-size: 1rem;
    font-weight: 600;
}

.widget-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 24px;
    /* U3: elevation sm + hover md */
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-normal);
}
.widget-card:hover { box-shadow: var(--shadow-md); }
.widget-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.duty-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}
.duty-item:last-child { border-bottom: none; }

.duty-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 600; font-size: 0.8rem; color: white;
    flex-shrink: 0;
}

.duty-info { flex: 1; min-width: 0; }
.duty-name { font-size: 0.9rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.duty-role { font-size: 0.75rem; color: var(--text-muted); }

.timeline-item {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}
.timeline-item:last-child { border-bottom: none; }
.timeline-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}
.timeline-dot.cyan { background: var(--primary); box-shadow: 0 0 8px var(--primary); }
.timeline-dot.purple { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.timeline-dot.green { background: var(--success); box-shadow: 0 0 8px var(--success); }

.timeline-content { flex: 1; }
.timeline-title { font-size: 0.88rem; font-weight: 500; }
.timeline-time { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }

.duty-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
}

.sidebar-widgets {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.sidebar-widgets > .widget-card:last-child {
    grid-column: 1 / -1;
}

@media (max-width: 1200px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid { grid-template-columns: 1fr; }
    .duty-grid { grid-template-columns: 1fr 1fr; }
    .duty-grid > .widget-card:last-child { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
    .duty-grid { grid-template-columns: 1fr; }
    .duty-grid > .widget-card:last-child { grid-column: auto; }
    .sidebar-widgets { grid-template-columns: 1fr; }
    .sidebar-widgets > .widget-card:last-child { grid-column: auto; }
    .chart-card .surgery-stats-row { grid-template-columns: 1fr !important; }
    .surgery-month-col { border-left: none !important; padding-left: 0 !important; border-top: 1px solid var(--border); padding-top: 20px; }
    .duty-name { white-space: normal; }
}

/* U5: Default styles for .surgery-month-col (desktop) */
.surgery-month-col {
    border-left: 1px solid var(--border);
    padding-left: 20px;
}
/* ===== Staff Sub-tabs ===== */
.staff-subtabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 4px;
    width: fit-content;
}
.staff-subtab {
    padding: 10px 24px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 8px;
}
.staff-subtab:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.staff-subtab.active {
    background: var(--primary);
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(8,145,178,0.3);
}
.staff-subtab-count {
    background: rgba(255,255,255,0.2);
    padding: 1px 8px;
    border-radius: 10px;
    font-size: 0.78rem;
    font-weight: 700;
}
.staff-subtab:not(.active) .staff-subtab-count {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

/* ===== Staff Filters & Table ===== */
.staff-filters { display: flex; gap: 12px; align-items: center; }
.filter-btn {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 50px;
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.82rem;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active {
    background: rgba(6,182,212,0.15);
    border-color: var(--primary);
    color: var(--primary-light);
}
.staff-table-card { margin-top: 20px; }
.staff-name-cell { display: flex; align-items: center; gap: 12px; }
.staff-avatar-sm {
    width: 34px; height: 34px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 600; font-size: 0.75rem; color: white; flex-shrink: 0;
}
.staff-fullname { font-weight: 500; }
.staff-actions { display: flex; gap: 6px; }

/* ===== U5: Extracted inline styles — staff.js ===== */
.th-action { width: 80px; }
.th-stt    { width: 50px; }
.th-action-wide { width: 160px; }
.td-muted  { color: var(--text-muted); }
.td-muted-sm { color: var(--text-muted); font-size: var(--text-sm, 0.8667rem); }
.td-secondary { color: var(--text-secondary); }
.td-center-muted { text-align: center; color: var(--text-muted); font-weight: 600; }
/* Toolbar rows */
.staff-toolbar { display: flex; gap: 8px; }
.staff-toolbar-mid { display: flex; gap: 8px; align-items: center; }
/* Guest staff note */
.guest-staff-note {
    color: var(--text-muted);
    font-size: var(--text-sm, 0.8667rem);
    padding: 6px 12px;
}
/* Status history */
.status-history-scroll {
    max-height: 140px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px;
    margin-bottom: 12px;
}
.status-history-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 8px;
    border-radius: 6px;
    margin-bottom: 3px;
}
.status-history-text { font-size: var(--text-base, 0.9333rem); }
.status-history-dates { color: var(--text-muted); margin-left: 6px; }
.status-history-note { color: var(--text-secondary); margin-left: 4px; font-style: italic; }
/* Status add section */
.status-add-section { border-top: 1px solid var(--border); padding-top: 12px; margin-top: 4px; }
/* Departed row */
.departed-row { opacity: 0.75; }
.departed-td-center { text-align: center; color: var(--text-muted); }
/* Departed action buttons */
.btn-restore {
    background: var(--success);
    color: #fff;
    border: none;
    font-size: var(--text-xxs, 0.6667rem);
    cursor: pointer;
}
.btn-delete-perm {
    background: var(--danger);
    color: #fff;
    border: none;
    font-size: var(--text-xxs, 0.6667rem);
    cursor: pointer;
}
/* Departed badge */
.badge-departed { background: #94a3b8; color: #fff; }

/* ===== CÁC TỔ ĐẶC TRÁCH ===== */
.team-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    gap: 16px;
}
.team-page-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin: 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.team-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 0;
    overflow: hidden;
    transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}
.team-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.team-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 16px 16px 12px;
    border-bottom: 1px solid var(--border);
    background: rgba(8,145,178,0.04);
    gap: 8px;
    min-height: 72px;  /* đảm bảo header đều cao trong cùng hàng */
}
[data-theme="dark"] .team-card-header { background: rgba(8,145,178,0.07); }

.team-card-title-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.team-card-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
    line-height: 1.2;
}
.team-card-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.4;
}
.team-card-actions {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
}

.team-member-list {
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 60px;
}
.team-member-item {
    display: flex;
    align-items: center;
    gap: 10px;
}
.team-member-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.72rem;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 1px 4px rgba(0,0,0,0.12);
}
.team-member-info {
    display: flex;
    flex-direction: column;
    gap: 1px;
}
.team-member-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}
.team-member-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.2;
}
.team-member-empty {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-style: italic;
}
.team-card-note {
    padding: 8px 16px 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    border-top: 1px dashed var(--border);
    background: rgba(0,0,0,0.015);
}
[data-theme="dark"] .team-card-note { background: rgba(255,255,255,0.02); }

/* Mobile */
@media (max-width: 768px) {
    .team-grid { grid-template-columns: 1fr; }
    .team-page-header { flex-direction: column; align-items: flex-start; }
}
/* ===== STAFF TRACKING PAGE ===== */
.st-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.st-view-tabs {
    display: flex;
    gap: 4px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 3px;
}

.st-tab {
    padding: 6px 16px;
    border: none;
    background: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.st-tab.active {
    background: var(--primary);
    color: #fff;
}

.st-tab:hover:not(.active) {
    background: var(--hover-bg);
}

/* ===== LEGEND — badge chips ===== */
.st-legend {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    align-items: center;
}

.st-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Legend chips — match cell appearance */
.st-legend-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 20px;
    border-radius: 4px;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.st-chip-active {
    background: #dcfce7;
    color: #16a34a;
    border: 1.5px solid #86efac;
}

.st-chip-leave {
    background: #fef9c3;
    color: #a16207;
    border: 1.5px solid #fde047;
}

.st-chip-sick {
    background: #fee2e2;
    color: #dc2626;
    border: 1.5px solid #fca5a5;
}

.st-chip-business {
    background: #ede9fe;
    color: #7c3aed;
    border: 1.5px solid #c4b5fd;
}

.st-chip-dayoff {
    background: #dbeafe;
    color: #2563eb;
    border: 1.5px solid #93c5fd;
}

/* Summary */
.st-summary {
    margin-bottom: 16px;
}

.st-summary-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    font-size: 0.85rem;
}

.st-summary-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
}

/* Grid card */
.st-grid-card {
    padding: 0;
    overflow: hidden;
}

.st-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.st-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
    min-width: 700px;
}

.st-table thead {
    position: sticky;
    top: 0;
    z-index: 2;
}

.st-staff-header {
    text-align: left;
    padding: 10px 12px;
    background: #ffffff;
    border-bottom: 2px solid var(--border);
    border-right: 2px solid var(--border);
    font-weight: 600;
    min-width: 180px;
    position: sticky;
    left: 0;
    z-index: 10;
    color: var(--text-primary);
    box-shadow: 4px 0 8px rgba(0,0,0,0.08);
}

.st-day-header {
    text-align: center;
    padding: 8px 6px;
    background: #ffffff;
    border-bottom: 2px solid var(--border);
    font-weight: 500;
    min-width: 52px;
    color: var(--text-secondary);
}

.st-day-header.st-today {
    background: var(--primary);
    color: #fff;
    border-radius: 0;
}

.st-day-header.st-weekend {
    color: var(--text-muted);
    background: var(--hover-bg);
}

.st-day-header.st-weekend.st-today {
    background: var(--primary);
    color: #fff;
}

.st-day-name {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.st-day-num {
    font-size: 0.9rem;
    font-weight: 700;
}

/* Staff cell */
.st-staff-cell {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    border-right: 2px solid var(--border);
    position: sticky;
    left: 0;
    background: #ffffff;
    z-index: 5;
    box-shadow: 4px 0 8px rgba(0,0,0,0.08);
}

.st-staff-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.st-staff-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.st-staff-name {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--text-primary);
    white-space: nowrap;
}

.st-staff-role {
    font-size: 0.7rem;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ===== STATUS CELLS — Colorblind-safe design ===== */
/* Uses DUAL ENCODING: background color + text abbreviation */
/* Palette tested for protanopia, deuteranopia, tritanopia */

.st-cell {
    text-align: center;
    padding: 6px 4px;
    border-bottom: 1px solid var(--border);
    cursor: default;
    transition: background 0.15s;
    min-width: 52px;
}

.st-cell[onclick] {
    cursor: pointer;
}

.st-cell[onclick]:hover {
    filter: brightness(0.92);
}

/* Status label — text inside each cell */
.st-status-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 22px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.st-cell.st-today {
    background: rgba(6, 182, 212, 0.06);
}

.st-cell.st-weekend {
    background: var(--hover-bg);
}

/* ===== Per-status styles — MATCHED to legend chips ===== */

/* Active — subtle green check */
.st-cell.st-status-active .st-status-label {
    background: #dcfce7;
    color: #16a34a;
    border: 1px solid #86efac;
    font-size: 0.75rem;
}

/* Leave (Nghỉ phép) — warm yellow */
.st-cell.st-status-leave {
    background: #fefce8 !important;
}
.st-cell.st-status-leave .st-status-label {
    background: #fef08a;
    color: #854d0e;
    border: 1.5px solid #facc15;
}

/* Sick (Bệnh ốm) — strong red */
.st-cell.st-status-sick {
    background: #fef2f2 !important;
}
.st-cell.st-status-sick .st-status-label {
    background: #fecaca;
    color: #dc2626;
    border: 1.5px solid #f87171;
}

/* Business (Công tác) — purple */
.st-cell.st-status-business {
    background: #faf5ff !important;
}
.st-cell.st-status-business .st-status-label {
    background: #ddd6fe;
    color: #6d28d9;
    border: 1.5px solid #a78bfa;
}

/* Dayoff (Nghỉ bù) — blue */
.st-cell.st-status-dayoff {
    background: #eff6ff !important;
}
.st-cell.st-status-dayoff .st-status-label {
    background: #bfdbfe;
    color: #1d4ed8;
    border: 1.5px solid #60a5fa;
}

/* Today column + status combos */
.st-cell.st-today.st-status-leave { background: #fef9c3 !important; }
.st-cell.st-today.st-status-sick { background: #fee2e2 !important; }
.st-cell.st-today.st-status-business { background: #ede9fe !important; }
.st-cell.st-today.st-status-dayoff { background: #dbeafe !important; }

/* Responsive */
@media (max-width: 768px) {
    .st-controls {
        flex-direction: column;
        align-items: stretch;
    }
    .st-legend {
        justify-content: center;
    }
    .st-staff-header {
        min-width: 130px;
    }
    .st-staff-avatar {
        display: none;
    }
    .st-status-label {
        width: 24px;
        height: 18px;
        font-size: 0.6rem;
    }
}

/* ===== U5: Extracted inline styles — staff-tracking.js ===== */
.st-absent-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 8px;
}
.st-absent-avatar-wrapper { width: 28px; height: 28px; font-size: var(--text-xxs, 0.6667rem); }
.st-absent-info { flex: 1; min-width: 0; }
.st-absent-name {
    font-size: var(--text-sm, 0.8667rem);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.st-absent-role { font-size: var(--text-xxs, 0.6667rem); color: var(--text-muted); }
.st-summary-card { margin-bottom: 16px; padding: 16px; }
.st-summary-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.st-summary-title {
    font-size: var(--text-sm, 0.8667rem);
    font-weight: 700;
    color: var(--text-primary);
}
.st-summary-date { font-size: var(--text-xs, 0.7333rem); color: var(--text-muted); margin-top: 2px; }
.st-summary-ratio-right { text-align: right; }
.st-summary-pct { font-size: var(--text-xs, 0.7333rem); color: var(--text-muted); }
.st-absent-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 6px; }
.st-warn-low {
    margin-top: 8px;
    padding: 6px 10px;
    border-radius: 6px;
    background: rgba(239, 68, 68, 0.08);
    color: var(--danger);
    font-size: var(--text-xs, 0.7333rem);
    font-weight: 600;
}
.st-filter-bar { margin-bottom: 12px; }
.st-absent-today { background: rgba(239, 68, 68, 0.04); }

/* ===== DARK MODE OVERRIDES ===== */
[data-theme="dark"] .st-view-tabs {
    background: var(--bg-secondary);
}
[data-theme="dark"] .st-staff-header {
    background: var(--bg-tertiary);
}
[data-theme="dark"] .st-day-header {
    background: var(--bg-tertiary);
}
[data-theme="dark"] .st-staff-cell {
    background: var(--bg-secondary);
}

/* Status cells — dark mode dùng màu đậm hơn để readable trên nền tối */
[data-theme="dark"] .st-cell.st-status-active .st-status-label {
    background: rgba(52,211,153,0.2);
    color: #34d399;
    border-color: rgba(52,211,153,0.4);
}
[data-theme="dark"] .st-cell.st-status-leave {
    background: rgba(251,191,36,0.08) !important;
}
[data-theme="dark"] .st-cell.st-status-leave .st-status-label {
    background: rgba(251,191,36,0.25);
    color: #fbbf24;
    border-color: rgba(251,191,36,0.5);
}
[data-theme="dark"] .st-cell.st-status-sick {
    background: rgba(248,113,113,0.08) !important;
}
[data-theme="dark"] .st-cell.st-status-sick .st-status-label {
    background: rgba(248,113,113,0.25);
    color: #f87171;
    border-color: rgba(248,113,113,0.5);
}
[data-theme="dark"] .st-cell.st-status-business {
    background: rgba(167,139,250,0.08) !important;
}
[data-theme="dark"] .st-cell.st-status-business .st-status-label {
    background: rgba(167,139,250,0.25);
    color: #a78bfa;
    border-color: rgba(167,139,250,0.5);
}
[data-theme="dark"] .st-cell.st-status-dayoff {
    background: rgba(96,165,250,0.08) !important;
}
[data-theme="dark"] .st-cell.st-status-dayoff .st-status-label {
    background: rgba(96,165,250,0.25);
    color: #60a5fa;
    border-color: rgba(96,165,250,0.5);
}
[data-theme="dark"] .st-cell.st-today.st-status-leave { background: rgba(251,191,36,0.12) !important; }
[data-theme="dark"] .st-cell.st-today.st-status-sick { background: rgba(248,113,113,0.12) !important; }
[data-theme="dark"] .st-cell.st-today.st-status-business { background: rgba(167,139,250,0.12) !important; }
[data-theme="dark"] .st-cell.st-today.st-status-dayoff { background: rgba(96,165,250,0.12) !important; }

/* Legend chips — dark mode */
[data-theme="dark"] .st-chip-active {
    background: rgba(52,211,153,0.15);
    color: #34d399;
    border-color: rgba(52,211,153,0.3);
}
[data-theme="dark"] .st-chip-leave {
    background: rgba(251,191,36,0.15);
    color: #fbbf24;
    border-color: rgba(251,191,36,0.3);
}
[data-theme="dark"] .st-chip-sick {
    background: rgba(248,113,113,0.15);
    color: #f87171;
    border-color: rgba(248,113,113,0.3);
}
[data-theme="dark"] .st-chip-business {
    background: rgba(167,139,250,0.15);
    color: #a78bfa;
    border-color: rgba(167,139,250,0.3);
}
[data-theme="dark"] .st-chip-dayoff {
    background: rgba(96,165,250,0.15);
    color: #60a5fa;
    border-color: rgba(96,165,250,0.3);
}
.kanban-board { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 20px; }
.kanban-column {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 16px;
    min-height: 400px;
}
.kanban-column-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 16px; padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.kanban-column-title { font-size: 0.9rem; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.kanban-count {
    width: 22px; height: 22px; border-radius: 50%;
    background: var(--bg-tertiary); display: flex; align-items: center; justify-content: center;
    font-size: 0.72rem; font-weight: 600; color: var(--text-muted);
}
.kanban-column-title .dot { width: 8px; height: 8px; border-radius: 50%; }
.dot-warning { background: var(--warning); }
.dot-primary { background: var(--primary); }
.dot-success { background: var(--success); }

.kanban-cards { display: flex; flex-direction: column; gap: 10px; min-height: 60px; }

.task-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    padding: 14px;
    cursor: grab;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.task-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.task-card.dragging { opacity: 0.5; }
.task-card-title { font-size: 0.88rem; font-weight: 500; margin-bottom: 0; }
.task-card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; }
.task-card-assignee { display: flex; align-items: center; gap: 6px; font-size: 0.78rem; color: var(--text-muted); }
.task-card-assignee-avatar {
    width: 22px; height: 22px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.6rem; font-weight: 600; color: white;
}
.task-card-deadline { font-size: 0.75rem; color: var(--text-muted); }
.priority-bar { width: 100%; height: 3px; border-radius: 2px; margin-bottom: 10px; }
.priority-high { background: var(--danger); }
.priority-medium { background: var(--warning); }
.priority-low { background: var(--success); }

/* Category filters */
.task-category-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
}
.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    font-family: inherit;
}
.filter-chip:hover {
    border-color: var(--border-light);
    background: var(--bg-hover);
}
.filter-chip.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}
.chip-count {
    font-size: 0.68rem;
    background: rgba(0,0,0,0.08);
    padding: 1px 6px;
    border-radius: 10px;
    font-weight: 600;
}
.filter-chip.active .chip-count {
    background: rgba(255,255,255,0.25);
}

/* Category badge on card */
.task-cat-badge {
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.task-filters { display: flex; gap: 12px; }

/* Task card action buttons */
.task-card-actions {
    display: flex;
    justify-content: flex-end;
    gap: 4px;
    margin-top: 8px;
}
.task-card-actions .btn-icon svg,
.task-card .btn-icon svg { pointer-events: none; }
.task-delete-btn:hover { color: var(--danger) !important; border-color: var(--danger) !important; }

@media (max-width: 1024px) { .kanban-board { grid-template-columns: 1fr; } }

/* U5: Task page header button group */
.task-header-actions {
    display: flex;
    gap: 8px;
}

/* U5: Task card header row */
.task-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 6px;
}

/* U5: Task card description */
.task-card-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

/* U5: Task card meta info row */
.task-card-meta-row {
    display: flex;
    gap: 6px;
    margin-top: 6px;
    flex-wrap: wrap;
    align-items: center;
}

/* U5: Small meta info chips (date, assigner) */
.task-meta-date,
.task-meta-assigner {
    font-size: 0.7rem;
    color: var(--text-muted);
}
.task-meta-completed {
    font-size: 0.7rem;
    color: var(--success);
}

/* U5: Trash table cells */
.trash-td-muted {
    color: var(--text-muted);
    font-size: 0.82rem;
}
.trash-td-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
}
.trash-td-actions {
    display: flex;
    gap: 4px;
}
.trash-action-col { width: 140px; }

/* U5: Modal confirm padding */
.modal-confirm-body { padding: 8px 0; }

/* U5: Deadline diff banners */
.task-deadline-diff {
    margin-top: 8px;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
}
.task-deadline-diff.success {
    background: rgba(16,185,129,0.1);
    color: var(--success);
}
.task-deadline-diff.primary {
    background: rgba(59,130,246,0.1);
    color: var(--primary);
}
.task-deadline-diff.danger {
    background: rgba(239,68,68,0.1);
    color: var(--danger);
}

/* U5: Completed date label in task detail */
.task-completed-label {
    color: var(--success);
}

/* U5: Trash card with no padding */
.card-no-padding {
    padding: 0;
    overflow: hidden;
}


/* ===== CALENDAR CONTROLS ===== */
.calendar-controls {
    display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px;
}
.calendar-nav { display: flex; align-items: center; gap: 16px; }
.calendar-month-label { font-size: 1.1rem; font-weight: 600; min-width: 180px; text-align: center; }

/* View mode buttons */
.calendar-view-modes {
    display: flex;
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}
.view-mode-btn {
    padding: 8px 16px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
    font-family: inherit;
    border-right: 1px solid var(--border);
}
.view-mode-btn:last-child { border-right: none; }
.view-mode-btn:hover { background: var(--bg-hover); }
.view-mode-btn.active {
    background: var(--primary);
    color: white;
}

/* ===== MONTH VIEW (GRID) ===== */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    overflow: hidden;
}
.calendar-day-header {
    padding: 12px 8px;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    background: var(--bg-secondary);
}
.calendar-day {
    min-height: 110px;
    padding: 8px;
    background: var(--bg-secondary);
    position: relative;
    cursor: pointer;
    transition: background var(--transition-fast);
}
.calendar-day:hover { background: var(--bg-hover); }
.calendar-day.other-month { opacity: 0.3; }
.calendar-day.today { background: rgba(8,145,178,0.06); }
.calendar-day.today .day-number {
    background: var(--primary);
    color: white;
    border-radius: 50%;
    width: 26px; height: 26px;
    display: flex; align-items: center; justify-content: center;
}
.day-number { font-size: 0.82rem; font-weight: 500; margin-bottom: 4px; }

/* Month event chip */
.calendar-event {
    font-size: 0.7rem;
    padding: 3px 6px;
    border-radius: 4px;
    margin-bottom: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
    font-weight: 500;
}
.calendar-event.meeting { background: rgba(8,145,178,0.15); color: var(--primary-dark); }
.calendar-event.consultation { background: rgba(124,58,237,0.15); color: var(--accent); }
.calendar-event.training { background: rgba(5,150,105,0.15); color: var(--success); }
.calendar-event.conference { background: rgba(217,119,6,0.15); color: var(--warning); }
.calendar-event.other { background: rgba(100,116,139,0.15); color: var(--text-secondary); }

/* ===== WEEK / 3-DAY COLUMN VIEW ===== */
.calendar-columns {
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--bg-secondary);
}

.cal-col-header-row {
    display: grid;
    border-bottom: 2px solid var(--border);
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 2;
}
.seven-day .cal-col-header-row { grid-template-columns: 56px repeat(7, 1fr); }
.three-day .cal-col-header-row { grid-template-columns: 56px repeat(3, 1fr); }

.cal-col-header {
    padding: 12px 8px;
    text-align: center;
    border-right: 1px solid var(--border);
}
.cal-col-header:last-child { border-right: none; }
.cal-col-header.today { background: rgba(8,145,178,0.06); }

.cal-col-day {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}
.cal-col-date {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 2px;
}
.cal-col-date.today-num {
    background: var(--primary);
    color: white;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.cal-col-body {
    display: grid;
    max-height: 600px;
    overflow-y: auto;
}
.seven-day .cal-col-body { grid-template-columns: 56px repeat(7, 1fr); }
.three-day .cal-col-body { grid-template-columns: 56px repeat(3, 1fr); }

.cal-time-gutter {
    border-right: 1px solid var(--border);
}
.cal-col-header-row .cal-time-gutter {
    padding: 12px 0;
}
.cal-time-slot {
    height: 52px;
    padding: 4px 6px;
    font-size: 0.68rem;
    color: var(--text-muted);
    text-align: right;
    border-bottom: 1px solid var(--border);
    box-sizing: border-box;
}

.cal-day-col {
    position: relative;
    border-right: 1px solid var(--border);
    cursor: pointer;
}
.cal-day-col:last-child { border-right: none; }
.cal-day-col.today-col { background: rgba(8,145,178,0.03); }

.cal-hour-cell {
    height: 52px;
    border-bottom: 1px solid var(--border);
    box-sizing: border-box;
}
.cal-hour-cell:hover { background: rgba(0,0,0,0.02); }

/* Column event */
.cal-event {
    position: absolute;
    left: 3px;
    right: 3px;
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 0.72rem;
    overflow: hidden;
    cursor: pointer;
    z-index: 1;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
    display: flex;
    flex-direction: column;
    gap: 1px;
}
.cal-event:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
    z-index: 5;
}
.cal-event.meeting { background: rgba(8,145,178,0.2); color: var(--primary-dark); border-left: 3px solid var(--primary); }
.cal-event.consultation { background: rgba(124,58,237,0.2); color: var(--accent); border-left: 3px solid var(--accent); }
.cal-event.training { background: rgba(5,150,105,0.2); color: var(--success); border-left: 3px solid var(--success); }
.cal-event.conference { background: rgba(217,119,6,0.2); color: var(--warning); border-left: 3px solid var(--warning); }
.cal-event.other { background: rgba(100,116,139,0.2); color: var(--text-secondary); border-left: 3px solid var(--text-muted); }

.cal-event-time {
    font-size: 0.65rem;
    font-weight: 600;
    opacity: 0.85;
}
.cal-event-title {
    font-weight: 600;
    font-size: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.plan-type-filters { display: flex; gap: 8px; flex-wrap: wrap; }

/* Multi-day event bar */
.calendar-event.multi-day {
    border-radius: 0;
    margin-left: -8px;
    margin-right: -8px;
    padding-left: 10px;
    padding-right: 10px;
    font-weight: 600;
    opacity: 0.9;
}
.calendar-event.multi-start {
    margin-left: 0;
    border-radius: 4px 0 0 4px;
}
.calendar-event.multi-end {
    margin-right: 0;
    border-radius: 0 4px 4px 0;
}
.calendar-event.multi-mid {
    font-size: 0.65rem;
    opacity: 0.7;
}

/* All-day event in column view */
.cal-event-allday {
    position: relative !important;
    top: auto !important;
    left: 2px;
    right: 2px;
    margin: 2px 0;
    border-radius: 4px;
    padding: 3px 6px;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    z-index: 2;
}
.cal-event-allday.meeting { background: rgba(8,145,178,0.25); color: var(--primary-dark); }
.cal-event-allday.consultation { background: rgba(124,58,237,0.25); color: var(--accent); }
.cal-event-allday.training { background: rgba(5,150,105,0.25); color: var(--success); }
.cal-event-allday.conference { background: rgba(217,119,6,0.25); color: var(--warning); }
.cal-event-allday.other { background: rgba(100,116,139,0.25); color: var(--text-secondary); }

/* ── Refactored from inline styles (Phase U5) ── */

/* plans-shcm-info-box: SHCM auto-created event info box */
.plans-shcm-info-box {
    padding: 10px;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* plans-shcm-link: link to Research page inside SHCM info box */
.plans-shcm-link {
    color: var(--primary);
    font-weight: 600;
}

/* plans-time-row: form-row with centered alignment for time fields */
.plans-time-row { align-items: center; }

/* plans-allday-group: flex-shrink checkbox group with top padding */
.plans-allday-group {
    flex: 0 0 auto;
    padding-top: 22px;
}

/* plans-allday-label: inline flex label for checkbox + text */
.plans-allday-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
}

/* plans-allday-checkbox: sized checkbox */
.plans-allday-checkbox {
    width: 16px;
    height: 16px;
}

/* plans-duration-input: readonly duration input with secondary bg */
.plans-duration-input {
    background: var(--bg-secondary);
    cursor: default;
}

/* plans-modal-body: modal detail view flex column */
.plans-modal-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ===== DARK MODE OVERRIDES — Calendar Events ===== */
/*
  Light mode: rgba(color, 0.15–0.25) + dark text → ổn
  Dark mode: cần opacity cao hơn + text sáng hơn để đủ tương phản
*/

/* Monthly grid events */
[data-theme="dark"] .calendar-event.meeting     { background: rgba(8,145,178,0.4);   color: #67e8f9; }
[data-theme="dark"] .calendar-event.consultation { background: rgba(124,58,237,0.4); color: #c4b5fd; }
[data-theme="dark"] .calendar-event.training    { background: rgba(5,150,105,0.4);   color: #6ee7b7; }
[data-theme="dark"] .calendar-event.conference  { background: rgba(217,119,6,0.45);  color: #fcd34d; }
[data-theme="dark"] .calendar-event.other       { background: rgba(100,116,139,0.35); color: #cbd5e1; }

/* Week/column view events */
[data-theme="dark"] .cal-event.meeting     { background: rgba(8,145,178,0.35);   color: #67e8f9; }
[data-theme="dark"] .cal-event.consultation { background: rgba(124,58,237,0.35); color: #c4b5fd; }
[data-theme="dark"] .cal-event.training    { background: rgba(5,150,105,0.35);   color: #6ee7b7; }
[data-theme="dark"] .cal-event.conference  { background: rgba(217,119,6,0.4);    color: #fcd34d; }
[data-theme="dark"] .cal-event.other       { background: rgba(100,116,139,0.3);  color: #cbd5e1; }

/* All-day events */
[data-theme="dark"] .cal-event-allday.meeting     { background: rgba(8,145,178,0.4);   color: #67e8f9; }
[data-theme="dark"] .cal-event-allday.consultation { background: rgba(124,58,237,0.4); color: #c4b5fd; }
[data-theme="dark"] .cal-event-allday.training    { background: rgba(5,150,105,0.4);   color: #6ee7b7; }
[data-theme="dark"] .cal-event-allday.conference  { background: rgba(217,119,6,0.45);  color: #fcd34d; }
[data-theme="dark"] .cal-event-allday.other       { background: rgba(100,116,139,0.35); color: #cbd5e1; }

/* Multi-day bars — cần opacity cao nhất để nhìn thấy span */
[data-theme="dark"] .calendar-event.multi-day { opacity: 1; font-weight: 700; }
.patient-stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px;
}
.patient-stat {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    padding: 16px;
    text-align: center;
}
.patient-stat-value { font-size: 1.5rem; font-weight: 700; }
.patient-stat-label { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }
.patient-stat-value.cyan { color: var(--primary); }
.patient-stat-value.green { color: var(--success); }
.patient-stat-value.purple { color: var(--accent); }
.patient-stat-value.amber { color: var(--warning); }

.patient-table-card { margin-top: 0; }
.patient-status { display: flex; align-items: center; gap: 6px; }
.patient-status-dot { width: 8px; height: 8px; border-radius: 50%; }
.patient-status-dot.active { background: var(--success); box-shadow: 0 0 6px var(--success); }
.patient-status-dot.pre-op { background: var(--warning); box-shadow: 0 0 6px var(--warning); }
.patient-status-dot.post-op { background: var(--primary); box-shadow: 0 0 6px var(--primary); }
.patient-status-dot.discharged { background: var(--text-subtle); }

.patient-min-max-badge {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1px 6px;
    border-radius: 4px;
    margin-left: 4px;
    vertical-align: middle;
}
.patient-min-max-badge.min {
    background: rgba(16, 185, 129, 0.12);
    color: #10b981;
}
.patient-min-max-badge.max {
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
}

@media (max-width: 1024px) { .patient-stats { grid-template-columns: repeat(2, 1fr); } }
/* ===== WEEKLY SCHEDULE ===== */
.schedule-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.schedule-week-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 200px;
    text-align: center;
}

.schedule-table-wrap {
    overflow-x: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
}

.schedule-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}

.schedule-table thead th {
    padding: 10px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border);
    text-align: center;
    background: rgba(0,0,0,0.03);
}

.schedule-pos-header {
    width: 130px;
    min-width: 130px;
    text-align: left !important;
    padding-left: 16px !important;
}

.schedule-day-header {
    min-width: 100px;
}
.schedule-day-header.today {
    color: var(--primary) !important;
    background: rgba(8, 145, 178, 0.06) !important;
}
.schedule-day-header.weekend {
    color: var(--danger) !important;
}
.schedule-day-name { display: block; font-size: 0.8rem; }
.schedule-day-date { display: block; font-size: 0.7rem; opacity: 0.75; margin-top: 2px; }

/* Position label */
.schedule-pos-label {
    padding: 8px 12px !important;
    vertical-align: middle;
    background: rgba(0,0,0,0.02);
}
.schedule-pos-name {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--text-primary);
    display: block;
}
.schedule-pos-slots {
    font-size: 0.72rem;  /* A: 0.68rem → 0.72rem WCAG 1.4.4 */
    color: var(--text-muted);
    margin-top: 2px;
    display: block;
}

/* Cells */
.schedule-cell {
    padding: 3px 4px !important;
    text-align: center;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid rgba(0,0,0,0.03);
    vertical-align: middle;
    min-height: 32px;
}
.schedule-cell.weekend {
    background: rgba(220, 38, 38, 0.03);
}
.schedule-cell.readonly {
    padding: 6px 8px !important;
}

.schedule-pos-first td {
    border-top: 1px solid var(--border-light);
}

.schedule-slot-label {
    display: block;
    font-size: 0.72rem;  /* A: 0.6rem (9px) → 0.72rem WCAG 1.4.4 */
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 1px;
}

/* Select in cells */
.schedule-select {
    width: 100%;
    padding: 4px 2px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.8rem;  /* A: 9pt (12px) → 0.8rem; mobile override →0 16px chống iOS zoom */
    cursor: pointer;
    outline: none;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
    text-align: center;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}
.schedule-select:hover {
    border-color: var(--border-light);
    background: rgba(0,0,0,0.02);
}
.schedule-select:focus {
    border-color: var(--primary);
    background: rgba(8, 145, 178, 0.06);
    color: var(--text-primary);
}
.schedule-select.has-value {
    color: var(--text-primary);
    font-weight: 500;
}

/* Lead position: bold first slot for Mổ and Trực khoa */
.schedule-lead-slot .schedule-select.has-value,
.schedule-lead-slot .schedule-name {
    font-weight: 700;
    color: var(--primary);   /* light: #0891b2 | dark: #38bdf8 */
}
.schedule-lead-slot .schedule-select.has-value {
    background: rgba(8, 145, 178, 0.06);
}
/* Dark: dùng primary-light (#7dd3fc) — tương phản cao hơn trên nền #161b22 */
[data-theme="dark"] .schedule-lead-slot .schedule-select.has-value,
[data-theme="dark"] .schedule-lead-slot .schedule-name {
    color: #7dd3fc;   /* contrast ~7.5:1 ✅ */
}

.schedule-name {
    font-size: 0.8rem;  /* A: 9pt (12px) → 0.8rem WCAG 1.4.4 */
    color: var(--text-secondary);
}

/* Notes */
.schedule-notes {
    padding: 16px 20px;
}

/* Robot Surgery */
.robot-surgery-card {
    padding: 16px 20px;
    border-left: 3px solid var(--accent);
}
.robot-table thead th {
    background: rgba(124, 58, 237, 0.06);
}
.robot-table td {
    padding: 6px 8px !important;
}

/* ===== Group pastel row backgrounds ===== */
tr[data-group="trucKhoa"] td { background-color: rgba(6, 182, 212, 0.06); }
tr[data-group="sieuAm"] td { background-color: rgba(139, 92, 246, 0.06); }
tr[data-group="pkB023"] td { background-color: rgba(245, 158, 11, 0.06); }
tr[data-group="pkB020"] td { background-color: rgba(236, 72, 153, 0.06); }
tr[data-group="pkK001"] td { background-color: rgba(16, 185, 129, 0.06); }
tr[data-group="mo"] td { background-color: rgba(239, 68, 68, 0.06); }
tr[data-group="trucBCN"] td { background-color: rgba(20, 184, 166, 0.06); }
tr[data-group="trucBV"] td { background-color: rgba(59, 130, 246, 0.06); }
tr[data-group="trucDD"] td { background-color: rgba(249, 115, 22, 0.06); }

/* Position label keeps its own bg */
tr[data-group] .schedule-pos-label { background: rgba(0,0,0,0.02); }

/* ── Refactored from inline styles (Phase U5) ── */

/* .btn-danger trong schedule đã có màu từ btn-danger, không cần override */

/* schedule-notes--mt: top margin for notes card */
.schedule-notes--mt { margin-top: 20px; }

/* schedule-notes-heading: Ghi chú section title */
.schedule-notes-heading {
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--primary-light);
}

/* schedule-notes-textarea: notes textarea min height */
.schedule-notes-textarea { min-height: 60px; }

/* schedule-notes-readonly: read-only notes paragraph */
.schedule-notes-readonly {
    color: var(--text-muted);
    font-size: 0.85rem;
    white-space: pre-wrap;
    line-height: 1.6;
}

/* robot-surgery-card--mt: top margin for robot card */
.robot-surgery-card--mt { margin-top: 20px; }

/* robot-card-header: flex row with bottom margin */
.robot-card-header { margin-bottom: 12px; }

/* robot-card-title: robot section heading */
.robot-card-title {
    font-size: 0.95rem;
    color: var(--accent-light);
}

/* robot-th-day / robot-th-session / robot-th-action: table header widths */
.robot-th-day    { width: 160px; }
.robot-th-session { width: 80px; }
.robot-th-action  { width: 50px; }

/* robot-empty-cell: empty state cell */
.robot-empty-cell {
    text-align: center;
    color: var(--text-muted);
    padding: 20px;
}

/* ===== DARK MODE OVERRIDES ===== */
/* Pos label — background tối không đủ contrast với cell thường */
[data-theme="dark"] .schedule-pos-label {
    background: rgba(255,255,255,0.04);
}
[data-theme="dark"] tr[data-group] .schedule-pos-label {
    background: rgba(255,255,255,0.04);
}

/* Weekend day header — đỏ sáng hơn, không dùng var(--danger) tối */
[data-theme="dark"] .schedule-day-header.weekend {
    color: #fca5a5 !important;  /* light red #fca5a5 contrast ~6:1 */
}

/* Weekend cells — subtle red tint */
[data-theme="dark"] .schedule-cell.weekend {
    background: rgba(248,113,113,0.06);
}

/* Today header — primary-light thay primary cho sáng hơn */
[data-theme="dark"] .schedule-day-header.today {
    background: rgba(56,189,248,0.1) !important;
}

/* Group row backgrounds — tăng opacity cho dark bg */
[data-theme="dark"] tr[data-group="trucKhoa"] td { background-color: rgba(6,182,212,0.1); }
[data-theme="dark"] tr[data-group="sieuAm"] td  { background-color: rgba(139,92,246,0.1); }
[data-theme="dark"] tr[data-group="pkB023"] td  { background-color: rgba(245,158,11,0.1); }
[data-theme="dark"] tr[data-group="pkB020"] td  { background-color: rgba(236,72,153,0.1); }
[data-theme="dark"] tr[data-group="pkK001"] td  { background-color: rgba(16,185,129,0.1); }
[data-theme="dark"] tr[data-group="mo"] td      { background-color: rgba(239,68,68,0.1);  }
[data-theme="dark"] tr[data-group="trucBCN"] td { background-color: rgba(20,184,166,0.1); }
[data-theme="dark"] tr[data-group="trucBV"] td  { background-color: rgba(59,130,246,0.1); }
[data-theme="dark"] tr[data-group="trucDD"] td  { background-color: rgba(249,115,22,0.1); }

/* ===== ALERT / REMINDER BANNER FOR SCHEDULE CHANGES ===== */
.schedule-alert-banner {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-left: 4px solid #f59e0b;
    border-radius: var(--radius-md, 8px);
    padding: 12px 16px;
    margin-bottom: 16px;
}
.schedule-alert-icon {
    font-size: 1.25rem;
    line-height: 1;
    margin-top: 2px;
}
.schedule-alert-content {
    flex: 1;
}
.schedule-alert-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary, #1e293b);
    margin-bottom: 6px;
}
.schedule-alert-list {
    margin: 0 0 6px 0;
    padding-left: 18px;
    font-size: 0.83rem;
    color: var(--text-secondary, #475569);
    line-height: 1.5;
}
.schedule-alert-list li {
    margin-bottom: 3px;
}
.schedule-alert-sub {
    font-size: 0.78rem;
    font-style: italic;
    color: var(--text-muted, #64748b);
}
[data-theme="dark"] .schedule-alert-banner {
    background: rgba(245, 158, 11, 0.12);
    border-color: rgba(245, 158, 11, 0.35);
}
[data-theme="dark"] .schedule-alert-title {
    color: #f8fafc;
}
[data-theme="dark"] .schedule-alert-list {
    color: #cbd5e1;
}
[data-theme="dark"] .schedule-alert-sub {
    color: #94a3b8;
}

/* ── Conflict Alert Banner & Cell Highlight ── */
.schedule-conflict-banner {
    display: flex;
    gap: 12px;
    background: #fef2f2;
    border: 1.5px solid #fca5a5;
    border-radius: var(--border-radius);
    padding: 14px 18px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.1);
}
.schedule-conflict-banner .schedule-alert-icon {
    font-size: 1.5rem;
}
.schedule-conflict-banner .schedule-alert-title {
    color: #b91c1c;
}
.schedule-conflict-banner .schedule-alert-list {
    color: #991b1b;
}
.schedule-conflict-banner .schedule-alert-sub {
    color: #dc2626;
    font-weight: 600;
}

[data-theme="dark"] .schedule-conflict-banner {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.4);
}
[data-theme="dark"] .schedule-conflict-banner .schedule-alert-title {
    color: #fca5a5;
}
[data-theme="dark"] .schedule-conflict-banner .schedule-alert-list {
    color: #fecaca;
}
[data-theme="dark"] .schedule-conflict-banner .schedule-alert-sub {
    color: #fca5a5;
}

.schedule-select--conflict {
    border-color: #ef4444 !important;
    background-color: #fef2f2 !important;
    color: #b91c1c !important;
    font-weight: 700 !important;
}
[data-theme="dark"] .schedule-select--conflict {
    background-color: rgba(239, 68, 68, 0.25) !important;
    color: #fca5a5 !important;
}


/* ===== SURGERY SCHEDULE ===== */
.surgery-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.surgery-stats { display: flex; gap: 12px; }
.surgery-stat-chip {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 500;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

/* ── Sticky header zone ── */
.surgery-sticky-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--bg-primary);
    padding-bottom: 4px;
    margin: 0 -32px;
    padding-left: 32px;
    padding-right: 32px;
}

/* ── Horizontal scroll zone ── */
.surgery-scroll-zone {
    overflow-x: auto;
    overflow-y: hidden;
    /* Pull out full width so 7-day grid can scroll horizontally */
    margin: 0 -32px;
    padding: 0 32px 12px;
    /* Custom thin scrollbar */
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}
.surgery-scroll-zone::-webkit-scrollbar { height: 6px; }
.surgery-scroll-zone::-webkit-scrollbar-track { background: transparent; }
.surgery-scroll-zone::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.surgery-scroll-zone::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Week grid — flex so columns don't compress */
.surgery-week-grid {
    display: flex;
    gap: 8px;
    min-width: max-content; /* allow horizontal expansion */
}

.surgery-day {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    width: 200px;        /* fixed column width per day */
    flex-shrink: 0;
}
.surgery-day.today {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary);
}
.surgery-day.weekend { background: rgba(0,0,0,0.01); }

.surgery-day-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    background: rgba(0,0,0,0.01);
}
.surgery-day.today .surgery-day-header {
    background: rgba(8,145,178,0.06);
}

.surgery-day-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
}
.surgery-day-count {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    font-weight: 600;
}

.surgery-day-body {
    padding: 8px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

/* Surgery card – compact / expanded */
.surgery-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
    font-size: 0.78rem;
    overflow: hidden;
}
[data-theme="dark"] .surgery-card {
    background: var(--bg-secondary);   /* fix: white card → dark bg, text readable */
}
.surgery-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* Compact row (always visible) */
.surgery-card-compact-row {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    padding: 7px 10px;
}
.surgery-card-order {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-muted);
    flex-shrink: 0;
}
.surgery-type-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.surgery-card-compact-name {
    flex: 1;
    font-weight: 600;
    font-size: 0.78rem;
    color: var(--text-primary);
    white-space: normal;          /* allow wrap in fixed-width column */
    overflow: visible;
    display: -webkit-box;
    -webkit-line-clamp: 2;        /* max 2 lines, still truncate if very long */
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.3;
}
.surgery-card-yob {
    font-size: 0.68rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* Detail section (hidden in compact) */
.surgery-card-detail {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease, padding 0.25s ease;
    padding: 0 10px;
}
.surgery-card.surgery-expanded .surgery-card-detail {
    max-height: 300px;
    padding: 0 10px 10px;
    border-top: 1px solid var(--border);
}
.surgery-card-type-tag {
    display: inline-block;
    font-size: 0.62rem;
    padding: 2px 7px;
    border-radius: 10px;
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin: 8px 0 6px;
}
.surgery-type-badge {
    font-size: 0.62rem;
    padding: 2px 7px;
    border-radius: 10px;
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.surgery-card-patient {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 4px;
}
.surgery-card-patient strong {
    font-size: 0.8rem;
    color: var(--text-primary);
}
.surgery-card-diagnosis {
    font-size: 0.72rem;
    color: var(--primary-dark);
    font-weight: 500;
    margin-bottom: 3px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.surgery-card-method {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.surgery-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 6px;
    border-top: 1px solid var(--border);
}
.surgery-card-surgeons {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.surgery-card-duration {
    font-size: 0.68rem;
    color: var(--text-muted);
}

.surgery-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.78rem;
    padding: 20px 0;
    opacity: 0.5;
}

.surgery-add-btn {
    margin-top: auto;
    padding: 6px;
    border: 1px dashed var(--border);
    border-radius: 6px;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.75rem;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
    font-family: inherit;
}
.surgery-add-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(8,145,178,0.04);
}

/* Detail modal */
.surgery-detail { display: flex; flex-direction: column; gap: 12px; }
.surgery-detail-row {
    display: flex;
    gap: 12px;
    align-items: baseline;
}
.surgery-detail-label {
    flex: 0 0 140px;
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
}
.surgery-detail-value {
    font-size: 0.88rem;
    color: var(--text-primary);
}
/* Summary panel */
.surgery-summary-panel {
    margin-bottom: 16px;
    padding: 10px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
}
.surgery-summary-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}
.surgery-summary-chips {
    display: flex;
    gap: 14px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}
.surgery-summary-chip {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
}
.surgery-summary-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: inline-block;
}
.surgery-summary-label { color: var(--text-secondary); }
.surgery-summary-count {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.85rem;
}
.surgery-summary-total {
    padding-left: 14px;
    border-left: 2px solid var(--border);
}

/* Responsive: on small screens, narrow the day columns slightly */
@media (max-width: 1200px) {
    .surgery-day { width: 185px; }
    .surgery-summary-panel { flex-direction: column; gap: 10px; align-items: flex-start; }
}
@media (max-width: 768px) {
    .surgery-day { width: 170px; }
    .surgery-sticky-header { margin: 0 -16px; padding-left: 16px; padding-right: 16px; }
    .surgery-scroll-zone { margin: 0 -16px; padding: 0 16px 12px; }
    .surgery-summary-chips { flex-wrap: wrap; }

    /* A C4+M5: touch targets — WCAG 2.5.5 min 44×44px */
    .btn-card-action,
    .btn-card-action-danger {
        min-height: 44px;
        font-size: 0.75rem;   /* A: 0.6667rem (10px) → 0.75rem */
        padding: 8px 12px;
    }
    .surgery-add-btn {
        min-height: 44px;     /* A: ~30px → 44px */
        padding: 10px 8px;
    }
}

/* ===== U5: Extracted inline styles — surgery.js ===== */
.surg-header-actions { display: flex; gap: 8px; }
/* Locked warning banner */
.surg-locked-banner {
    background: rgba(254,243,199,0.9);
    border: 1px solid var(--warning);
    border-radius: 8px;
    padding: 10px 16px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--text-sm, 0.8667rem);
    color: #92400e;
}
[data-theme="dark"] .surg-locked-banner {
    background: rgba(120,53,15,0.2);
    color: var(--warning);
}
/* Card action buttons row */
.surg-card-actions { margin-top: 6px; display: flex; gap: 4px; }
.surg-card-actions-single { margin-top: 6px; }
/* Duration text under type tag */
.surg-card-duration {
    font-size: var(--text-xxs, 0.6667rem);
    color: var(--text-secondary);
    margin-bottom: 4px;
}
/* Inline btn variants (small, padding override) */
.btn-card-action {
    font-size: var(--text-xxs, 0.6667rem);
    padding: 2px 8px;
}
.btn-card-action-danger {
    font-size: var(--text-xxs, 0.6667rem);
    padding: 2px 8px;
    color: var(--danger);
}
/* Required star */
.form-required { color: var(--danger); }
/* First-case label disabled */
.first-case-label-disabled {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
    background: var(--bg-secondary);
    cursor: not-allowed;
    opacity: 0.7;
}
/* First-case label active */
.first-case-label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
    background: var(--bg-secondary);
    cursor: pointer;
}
.first-case-label span { font-size: var(--text-sm, 0.8667rem); }
/* First-case warning */
.first-case-warning {
    font-size: var(--text-xs, 0.7333rem);
    color: var(--warning);
    margin-top: 4px;
}
/* Export date picker section */
.export-date-section { padding: 8px 0; }
.export-date-section .form-input { font-size: 16px; padding: 10px; }
/* ===== SURGERY STATISTICS ===== */
.sstats-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 12px;
}
.sstats-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
}
.sstats-nav .btn-icon {
    padding: 6px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-primary);
    cursor: pointer;
    color: var(--text-secondary);
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.sstats-nav .btn-icon:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.sstats-nav-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    min-width: 200px;
    text-align: center;
}
.sstats-period-tabs {
    display: flex;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 3px;
    gap: 2px;
}
.sstats-period-btn {
    padding: 8px 20px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    font-family: inherit;
}
.sstats-period-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.sstats-period-btn.active {
    background: var(--primary);
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(8,145,178,0.25);
}

/* Summary cards */
.sstats-summary-cards {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    align-items: stretch;
}
.sstats-summary-card {
    flex: 1;
    min-width: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 12px 8px;
    text-align: center;
}
.sstats-summary-card.sstats-total {
    background: linear-gradient(135deg, var(--primary), #0e7490);
    border-color: transparent;
    color: white;
    flex: 1.15;
}
.sstats-summary-divider {
    width: 2px;
    background: var(--border);
    border-radius: 2px;
    align-self: stretch;
    margin: 4px 4px;
}
.sstats-summary-value {
    font-size: 1.35rem;
    font-weight: 800;
    line-height: 1.2;
}
.sstats-total .sstats-summary-value { color: white; }
.sstats-summary-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
    color: var(--text-muted);
}
.sstats-total .sstats-summary-label { color: rgba(255,255,255,0.8); }

/* ===== Main Summary Table ===== */
.sstats-main-table-card {
    overflow: hidden;
}
.sstats-main-table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.sstats-main-table-header h3 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}
.sstats-main-table-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Table */
.sstats-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.sstats-table thead {
    background: rgba(0,0,0,0.02);
}
.sstats-table th {
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}
.sstats-th-stt { width: 50px; text-align: center; }
.sstats-th-name { min-width: 200px; }
.sstats-th-num { text-align: center !important; width: 90px; }
.sstats-th-total { background: rgba(8,145,178,0.06); }

.sstats-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

/* Summary row hover & active */
.sstats-summary-row {
    transition: background 0.15s ease;
}
.sstats-summary-row:hover {
    background: rgba(8,145,178,0.04);
}
.sstats-summary-row.sstats-row-active {
    background: rgba(8,145,178,0.08);
    border-left: 3px solid var(--primary);
}
.sstats-summary-row.sstats-row-active td:first-child {
    padding-left: 11px;
}

.sstats-td-stt { text-align: center; color: var(--text-muted); font-weight: 600; }
.sstats-td-name {
    display: flex;
    align-items: center;
    gap: 10px;
}
.sstats-doc-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}
.sstats-doc-name {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--text-primary);
}
.sstats-doc-role {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 1px;
}
.sstats-expand-icon {
    margin-left: auto;
    color: var(--text-muted);
    transition: transform 0.25s ease;
    flex-shrink: 0;
}
.sstats-expand-icon.expanded {
    transform: rotate(180deg);
    color: var(--primary);
}

.sstats-td-num {
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
}
.sstats-td-num.zero {
    opacity: 0.3;
}
.sstats-td-total {
    background: rgba(8,145,178,0.04);
    color: var(--primary-dark);
    font-weight: 800;
}

/* Footer */
.sstats-footer-row {
    background: rgba(0,0,0,0.03);
}
.sstats-footer-row td {
    border-bottom: none;
    padding: 14px;
}
.sstats-td-footer-label {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
    text-align: right !important;
    padding-right: 20px !important;
}

/* ===== Expanded Detail Panel ===== */
.sstats-detail-row td {
    padding: 0 !important;
    border-bottom: 2px solid var(--primary) !important;
}
.sstats-detail-panel {
    background: linear-gradient(to bottom, rgba(8,145,178,0.03), var(--bg-secondary));
    border-top: 1px solid rgba(8,145,178,0.15);
    padding: 16px 20px 20px;
}
.sstats-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}
.sstats-detail-title {
    font-size: 0.88rem;
    color: var(--primary-dark);
}
.sstats-detail-chips {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.sstats-type-chip {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
}

/* Detail patient table */
.sstats-detail-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
}
.sstats-detail-table thead {
    background: rgba(0,0,0,0.03);
}
.sstats-detail-table th {
    padding: 8px 10px;
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.sstats-detail-table td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}
.sstats-detail-table tbody tr:hover {
    background: rgba(8,145,178,0.04);
}
.sstats-detail-table tbody tr:last-child td {
    border-bottom: none;
}

/* Responsive */
@media (max-width: 1024px) {
    .sstats-main-table-card { overflow-x: auto; }
    .sstats-summary-cards { flex-wrap: wrap; }
    .sstats-summary-card { flex: 1 1 calc(33% - 8px); }
}
@media (max-width: 768px) {
    .sstats-summary-card { flex: 1 1 calc(50% - 6px); }
    .sstats-detail-panel { padding: 12px; }
}

/* U5: Header button group */
.sstats-header-actions {
    display: flex;
    gap: 8px;
}

/* U5: Empty state */
.sstats-empty-state-card {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}
.sstats-empty-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

/* U5: Summary row cursor */
.sstats-summary-row { cursor: pointer; }

/* U5: Detail table th widths */
.sstats-detail-th-stt  { width: 40px; text-align: center; }
.sstats-detail-th-name { min-width: 140px; }
.sstats-detail-th-diagnosis { min-width: 160px; }
.sstats-detail-th-method    { min-width: 180px; }

/* U5: Detail table td styles */
.sstats-detail-td-stt {
    text-align: center;
    color: var(--text-muted);
    font-weight: 600;
}
.sstats-detail-td-text {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* U5: Footer total cells */
.sstats-td-num-bold {
    font-weight: 700;
}
.sstats-td-total-grand {
    font-weight: 800;
    font-size: 1rem;
}

/* U5: Clickable detail rows */
.sstats-detail-tr-clickable { cursor: pointer; }
.sstats-detail-tr-clickable:hover { background: rgba(8,145,178,0.04); }

/* U5: Summary row cursor (supplement to existing transition rule) */
.sstats-summary-row { cursor: pointer; }

/* ===== ROOM MAP ===== */
.rooms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.room-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.room-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.06);
}

.room-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: linear-gradient(135deg, var(--primary), #0e7490);
    color: white;
}
.room-number {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: 0.5px;
}
.room-patient-count {
    font-size: 0.72rem;
    font-weight: 600;
    background: rgba(255,255,255,0.2);
    padding: 2px 8px;
    border-radius: 10px;
}

.room-card-body {
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.room-doctor {
    display: flex;
    align-items: center;
    gap: 10px;
}
.room-doc-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}
.room-doc-info {
    display: flex;
    flex-direction: column;
}
.room-doc-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
    line-height: 1.3;
}
.room-doc-role {
    font-size: 0.68rem;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: 4px;
    display: inline-block;
    margin-top: 2px;
    width: fit-content;
}
.room-role-bs {
    background: rgba(8,145,178,0.1);
    color: var(--primary);
}
.room-role-nt {
    background: rgba(245,158,11,0.1);
    color: #f59e0b;
}
.room-role-ch {
    background: rgba(139,92,246,0.1);
    color: #8b5cf6;
}

/* Legend */
.rooms-legend {
    padding: 14px 20px;
}
.rooms-legend-items {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.rooms-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.room-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    display: inline-block;
}
.room-legend-dot.room-role-bs { background: var(--primary); }
.room-legend-dot.room-role-nt { background: #f59e0b; }
.room-legend-dot.room-role-ch { background: #8b5cf6; }

/* Responsive */
@media (max-width: 768px) {
    .rooms-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
}
@media (max-width: 480px) {
    .rooms-grid { grid-template-columns: 1fr; }
}
/* ===== RESEARCH / SHCM STYLES ===== */

/* Stats */
.rsch-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}
.rsch-stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: transform 0.15s;
}
.rsch-stat-card:hover { transform: translateY(-2px); }
.rsch-stat-val { font-size: 1.8rem; font-weight: 800; color: var(--text); }
.rsch-stat-lbl { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; }
.rsch-done .rsch-stat-val { color: #16a34a; }
.rsch-pending .rsch-stat-val { color: #ea580c; }
.rsch-reg .rsch-stat-val { color: #7c3aed; }

/* Settings */
.rsch-settings-card { padding: 12px 20px !important; margin-bottom: 16px; }
.rsch-settings-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.rsch-settings-label { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); white-space: nowrap; }
.rsch-settings-unit { font-size: 0.82rem; font-weight: 500; color: var(--text-muted); white-space: nowrap; }
.rsch-time-input { width: 110px !important; }
.rsch-dur-input { width: 72px !important; text-align: center; }

/* Table */
.rsch-table-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, #eff6ff, #f0fdf4);
}
[data-theme="dark"] .rsch-table-header {
    background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(34,197,94,0.08));
}
.rsch-table-header h3 { margin: 0; font-size: 0.95rem; font-weight: 700; color: var(--text); }
.rsch-table-wrap { overflow-x: auto; }
.rsch-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.rsch-table thead th {
    background: var(--bg-secondary);
    padding: 10px 12px;
    text-align: left;
    font-weight: 700;
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border-bottom: 2px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1;
}
.rsch-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}
.rsch-table tbody tr:hover { background: var(--bg-hover); }
.rsch-table td { padding: 10px 12px; vertical-align: middle; }
.rsch-stt { text-align: center; font-weight: 700; color: var(--text-muted); }
.rsch-doctor { font-weight: 600; color: var(--text); white-space: nowrap; }
.rsch-title { color: var(--text-secondary); line-height: 1.4; }
.rsch-date { text-align: center; font-weight: 600; color: var(--text); font-size: 0.88rem; }

.rsch-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
}

.rsch-actions { display: flex; gap: 2px; }
.rsch-actions .btn-icon {
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    background: none;
    border: none;
    transition: background 0.15s;
}
.rsch-actions .btn-icon:hover { background: var(--bg-hover); }

/* Row status highlight */
.rsch-row-done td:first-child { border-left: 3px solid #16a34a; }
.rsch-row-pending td:first-child { border-left: 3px solid #ea580c; }
.rsch-row-registered td:first-child { border-left: 3px solid #7c3aed; }

/* Files section */
.rsch-files-card { margin-top: 16px; }
.rsch-files-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.rsch-files-header h3 { margin: 0; font-size: 0.95rem; font-weight: 700; }
.rsch-files-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: right;
}
.rsch-files-list { display: flex; flex-direction: column; gap: 8px; }
.rsch-file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.rsch-file-item:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
}
.rsch-file-icon { font-size: 1.5rem; flex-shrink: 0; }
.rsch-file-info { flex: 1; min-width: 0; }
.rsch-file-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.rsch-file-meta { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }
.rsch-file-actions { display: flex; gap: 6px; flex-shrink: 0; }

/* Responsive */
@media (max-width: 768px) {
    .rsch-stats { grid-template-columns: repeat(2, 1fr); }
    .rsch-settings-row { flex-direction: column; align-items: flex-start; }
    .rsch-table { font-size: 0.78rem; }
    .rsch-table td, .rsch-table th { padding: 8px 6px; }
    .rsch-file-name { max-width: 180px; }
}

/* ── Refactored from inline styles (Phase U5) ── */

/* rsch-header-actions: page header button group */
.rsch-header-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* rsch-table-card: card with no padding and overflow hidden */
.rsch-table-card {
    padding: 0;
    overflow: hidden;
}

/* rsch-th-stt / rsch-th-doctor / rsch-th-status / rsch-th-date / rsch-th-actions: table header widths */
.rsch-th-stt     { width: 44px; }
.rsch-th-doctor  { min-width: 160px; }
.rsch-th-status  { width: 110px; }
.rsch-th-date    { width: 100px; }
.rsch-th-actions { width: 70px; }

/* rsch-loading-placeholder: "loading" text in files list */
.rsch-loading-placeholder {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
}

/* rsch-empty-files: empty files state */
.rsch-empty-files {
    text-align: center;
    padding: 30px;
    color: var(--text-muted);
}

/* rsch-error-files: error state */
.rsch-error-files {
    text-align: center;
    padding: 20px;
    color: var(--danger);
}

/* form-textarea--medium: medium height textarea */
.form-textarea--medium { min-height: 60px; }

/* shcm-date-input-row: date input flex container */
.shcm-date-input-row {
    display: flex;
    gap: 6px;
    align-items: center;
}

/* shcm-date-display: flexible text date input */
.shcm-date-display { flex: 1; }

/* shcm-date-picker: compact calendar picker */
.shcm-date-picker {
    width: 40px;
    padding: 6px 4px;
    opacity: 0.6;
    cursor: pointer;
}

/* shcm-date-conflict-warn: conflict warning box (hidden by default, shown via JS) */
.shcm-date-conflict-warn {
    display: none;
    margin-top: 6px;
    padding: 8px 12px;
    background: #fff7ed;
    border: 1px solid #fed7aa;
    border-radius: 6px;
    color: #c2410c;
    font-size: 13px;
}

/* ===== DARK MODE OVERRIDES ===== */
/* Stat value numbers — tăng tương phản */
[data-theme="dark"] .rsch-done .rsch-stat-val    { color: #34d399; }
[data-theme="dark"] .rsch-pending .rsch-stat-val { color: #fb923c; }
[data-theme="dark"] .rsch-reg .rsch-stat-val     { color: #a78bfa; }

/* Conflict warning — dark amber */
[data-theme="dark"] .shcm-date-conflict-warn {
    background: rgba(251,191,36,0.1);
    border-color: rgba(251,191,36,0.3);
    color: #fbbf24;
}
/* ===== CONFERENCES PAGE — Báo cáo khoa học Khoa PTĐTT ===== */

/* ── Summary stats row ── */
.cp-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}

.cp-stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 18px 20px;
    text-align: center;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.cp-stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }

.cp-stat-card.cp-stat-highlight {
    background: linear-gradient(135deg, rgba(8,145,178,0.08), rgba(8,145,178,0.03));
    border-color: rgba(8,145,178,0.3);
}

.cp-stat-card.cp-stat-upcoming {
    background: linear-gradient(135deg, rgba(245,158,11,0.08), rgba(245,158,11,0.02));
    border-color: rgba(245,158,11,0.3);
}

.cp-stat-big {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
    margin-bottom: 4px;
}

.cp-stat-highlight .cp-stat-big { color: var(--primary); }
.cp-stat-upcoming .cp-stat-big  { color: #d97706; }

.cp-stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

/* ── Year filter tabs (reuse conf-time-tab) ── */
.conf-time-tabs { display: flex; gap: 6px; flex-wrap: wrap; }

.conf-time-tab {
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
    font-family: inherit;
}

.conf-time-tab:hover { border-color: var(--primary); color: var(--primary); }

.conf-time-tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(8,145,178,0.25);
}

/* ── Cards container ── */
.cp-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ── Conference card ── */
.cp-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 22px 24px;
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.cp-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 5px;
    border-radius: 5px 0 0 5px;
    background: linear-gradient(180deg, var(--primary), #0e7490);
}

.cp-card:hover { box-shadow: var(--shadow-md); }

.cp-card.cp-card-past   { opacity: 0.7; }
.cp-card.cp-card-past::before { background: linear-gradient(180deg, #94a3b8, #cbd5e1); }
.cp-card.cp-card-soon::before { background: linear-gradient(180deg, #f59e0b, #d97706); }
.cp-card.cp-card-now::before  { background: linear-gradient(180deg, #10b981, #059669); }

/* Card header */
.cp-card-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 12px;
}

.cp-conf-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.cp-conf-name-vi {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 3px;
    line-height: 1.4;
}

.cp-countdown {
    font-size: 0.8rem;
    font-weight: 700;
    white-space: nowrap;
    padding: 4px 12px;
    border-radius: 20px;
    flex-shrink: 0;
}

.cp-cd-past     { background: #f1f5f9; color: #94a3b8; }
.cp-cd-upcoming { background: rgba(8,145,178,0.08); color: var(--primary); }
.cp-cd-soon     { background: #fef3c7; color: #d97706; }
.cp-cd-now      { background: #ecfdf5; color: #059669; animation: pulse-badge 2s infinite; }

@keyframes pulse-badge { 0%,100%{opacity:1} 50%{opacity:0.7} }

/* Info chips */
.cp-card-info {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.cp-info-chip {
    font-size: 0.78rem;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    padding: 3px 10px;
    border-radius: 20px;
}

/* Stat pills */
.cp-stat-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.cp-stat-pill {
    display: flex;
    align-items: baseline;
    gap: 4px;
    padding: 5px 14px;
    border-radius: 10px;
    font-size: 0.8rem;
}

.cp-stat-pres    { background: rgba(8,145,178,0.08); border: 1px solid rgba(8,145,178,0.2); }
.cp-stat-person  { background: rgba(124,58,237,0.07); border: 1px solid rgba(124,58,237,0.2); }
.cp-stat-lang    { background: rgba(37,99,235,0.07);  border: 1px solid rgba(37,99,235,0.2); }
.cp-stat-lang-vi { background: rgba(5,150,105,0.07);  border: 1px solid rgba(5,150,105,0.2); }

.cp-stat-num {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.cp-stat-pres   .cp-stat-num { color: var(--primary); }
.cp-stat-person .cp-stat-num { color: #7c3aed; }
.cp-stat-lang   .cp-stat-num { color: #2563eb; }
.cp-stat-lang-vi .cp-stat-num { color: #059669; }

.cp-stat-unit {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Presenter chips */
.cp-presenter-chips {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.cp-presenter-chip {
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 3px 10px;
    border-radius: 20px;
}

/* Presentations list (inline) */
.cp-pres-list {
    border: 1px solid var(--border-light);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 14px;
}

.cp-day-block { border-bottom: 1px solid var(--border-light); }
.cp-day-block:last-child { border-bottom: none; }

.cp-day-label {
    background: var(--bg-tertiary);
    padding: 6px 14px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    border-bottom: 1px solid var(--border-light);
}

.cp-pres-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 8px 14px;
    font-size: 0.8rem;
    border-bottom: 1px solid var(--border-light);
    transition: background 0.1s;
}

.cp-pres-row:last-child { border-bottom: none; }
.cp-pres-row:hover { background: var(--bg-tertiary); }

.cp-pres-time {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
    flex-shrink: 0;
    min-width: 90px;
}

.cp-pres-lang {
    font-size: 0.62rem;
    font-weight: 800;
    padding: 1px 6px;
    border-radius: 6px;
    flex-shrink: 0;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.cp-lang-en { background: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
.cp-lang-vi { background: #ecfdf5; color: #059669; border: 1px solid #a7f3d0; }

.cp-pres-title {
    flex: 1;
    font-size: 0.8rem;
    color: var(--text-primary);
    line-height: 1.4;
}

.cp-pres-who {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    flex-shrink: 0;
}

.cp-pres-session {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-style: italic;
    white-space: nowrap;
    flex-shrink: 0;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cp-pres-actions {
    display: flex;
    gap: 2px;
    margin-left: 8px;
    flex-shrink: 0;
    opacity: 0.6;
    transition: opacity 0.15s ease;
}
.cp-pres-row:hover .cp-pres-actions {
    opacity: 1;
}
.btn-icon-sm {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 0.75rem;
    padding: 2px 4px;
    border-radius: 4px;
    transition: background 0.15s ease;
}
.btn-icon-sm:hover {
    background: rgba(0,0,0,0.06);
}
[data-theme="dark"] .btn-icon-sm:hover {
    background: rgba(255,255,255,0.1);
}
.cp-pres-empty {
    padding: 14px 18px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.83rem;
    font-style: italic;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

/* Card footer */
.cp-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 10px;
    border-top: 1px solid var(--border-light);
}

.cp-link {
    font-size: 0.78rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.cp-link:hover { text-decoration: underline; }

/* Empty state */
.conf-empty { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.conf-empty-icon { font-size: 3rem; margin-bottom: 12px; }
.conf-empty-text { font-size: 1rem; font-weight: 500; }

/* ── Presenter chips — leadership variant ── */
.cp-presenter-chip.cp-presenter-leader {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border-color: #f59e0b;
    color: #78350f;
    font-weight: 700;
}

.cp-chip-badge {
    font-size: 0.62rem;
    font-weight: 700;
    color: #92400e;
    background: rgba(255,255,255,0.7);
    padding: 1px 5px;
    border-radius: 6px;
    margin-left: 2px;
}

/* ── Presenter modal list ── */
.cp-pm-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 70vh;
    overflow-y: auto;
    padding-right: 2px;
}

.cp-pm-row {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 12px 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    background: var(--bg-secondary);
    transition: background 0.12s;
}

.cp-pm-row:hover { background: var(--bg-tertiary); }

.cp-pm-row.cp-pm-leader {
    background: linear-gradient(135deg, rgba(254,243,199,0.5), rgba(253,230,138,0.15));
    border-color: rgba(245,158,11,0.3);
}

.cp-pm-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #0e7490);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 800;
    flex-shrink: 0;
}

.cp-pm-leader .cp-pm-avatar {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.cp-pm-info { flex: 1; min-width: 0; }

.cp-pm-name {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 4px;
}

.cp-pm-badge {
    font-size: 0.65rem;
    font-weight: 700;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff;
    padding: 2px 8px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.cp-pm-stats {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.cp-pm-sessions { display: flex; flex-direction: column; gap: 4px; }

.cp-pm-session {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 900px) {
    .cp-stats-row { grid-template-columns: repeat(2, 1fr); }
    .cp-pres-who  { display: none; }
}

@media (max-width: 768px) {
    /* Card hội nghị: padding thu gọn */
    .cp-card { padding: 14px 12px; }
    .cp-card-head { flex-direction: column; gap: 10px; }

    /* Danh sách báo cáo — wrap xuống dòng trên mobile */
    .cp-pres-row {
        flex-wrap: wrap;          /* time+lang dòng 1, title dòng 2, presenter dòng 3 */
        gap: 2px 8px;
        padding: 10px 12px;
        align-items: flex-start;
    }
    .cp-pres-time {
        min-width: 80px;
        font-size: 0.75rem;
        flex-shrink: 0;
    }
    .cp-pres-lang {
        flex-shrink: 0;
        margin-top: 1px;
    }
    .cp-pres-title {
        flex-basis: 100%;         /* xuống dòng riêng, full width */
        font-size: 0.82rem;
        line-height: 1.5;
        margin-top: 2px;
    }
    /* Tên báo cáo viên: hiện ở dòng riêng bên dưới tiêu đề */
    .cp-pres-who {
        display: block;           /* hiện lại (thay vì display:none) */
        flex-basis: 100%;
        white-space: normal;      /* cho phép wrap */
        font-size: 0.75rem;
        color: var(--text-muted);
        margin-top: 1px;
        padding-left: 2px;
    }
    .cp-pres-session { display: none; } /* vẫn ẩn session label */

    /* Stats bar hội nghị */
    .cp-stats-row { grid-template-columns: repeat(2, 1fr); }

    /* Stat pills */
    .cp-stat-pill { padding: 8px 10px; }
    .cp-stat-num { font-size: 1.3rem; }

    /* Header hội nghị (year tabs + title) */
    .cp-year-tabs {
        flex-wrap: wrap;
        gap: 6px;
    }
    .cp-year-tab {
        padding: 6px 12px;
        font-size: 0.78rem;
    }
}

@media (max-width: 600px) {
    .cp-stats-row { grid-template-columns: repeat(2, 1fr); }
    .cp-card      { padding: 12px 10px; }
    .cp-card-head { flex-direction: column; }
    .cp-pres-time { min-width: 72px; font-size: 0.72rem; }
}

/* ── Refactored from inline styles (Phase U5) ── */

/* cp-lang-count: language count badges in presenter modal stats */
.cp-lang-count {
    font-size: 0.65rem;
    padding: 1px 6px;
    border-radius: 6px;
}

/* cp-pm-subtitle: modal presenter count subtitle */
.cp-pm-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

/* cp-stat-person-btn: clickable presenter stat pill */
.cp-stat-person-btn {
    cursor: pointer;
    transition: opacity 0.15s, transform 0.1s;
}
.cp-stat-person-btn:hover { opacity: 0.8; transform: translateY(-1px); }

/* cp-footer-left / cp-footer-actions: card footer flex groups */
.cp-footer-left {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}
.cp-footer-actions {
    display: flex;
    gap: 6px;
}

/* conf-time-tabs--spaced: year tabs with bottom margin */
.conf-time-tabs--spaced {
    margin-bottom: 20px;
}

/* form-textarea--short: short textarea (note field) */
.form-textarea--short {
    min-height: 50px;
}

/* ===== DARK MODE OVERRIDES ===== */
/* Countdown badges */
[data-theme="dark"] .cp-cd-past  { background: rgba(148,163,184,0.15); color: var(--text-muted); }
[data-theme="dark"] .cp-cd-soon  { background: rgba(251,191,36,0.15);  color: #fbbf24; }
[data-theme="dark"] .cp-cd-now   { background: rgba(52,211,153,0.15);  color: #34d399; }

/* Language chips — dark readable */
[data-theme="dark"] .cp-lang-en {
    background: rgba(96,165,250,0.15);
    color: #60a5fa;
    border-color: rgba(96,165,250,0.35);
}
[data-theme="dark"] .cp-lang-vi {
    background: rgba(52,211,153,0.15);
    color: #34d399;
    border-color: rgba(52,211,153,0.35);
}

/* Presenter leader chip — dark amber */
[data-theme="dark"] .cp-presenter-chip.cp-presenter-leader {
    background: rgba(251,191,36,0.15);
    border-color: rgba(251,191,36,0.4);
    color: #fbbf24;
}
[data-theme="dark"] .cp-chip-badge {
    color: #fbbf24;
    background: rgba(0,0,0,0.3);
}

/* Stat numbers */
[data-theme="dark"] .cp-stat-person .cp-stat-num { color: #a78bfa; }
[data-theme="dark"] .cp-stat-lang   .cp-stat-num { color: #60a5fa; }
[data-theme="dark"] .cp-stat-lang-vi .cp-stat-num { color: #34d399; }
[data-theme="dark"] .cp-stat-upcoming .cp-stat-big { color: #fbbf24; }
/* ===== NOTIFICATION BELL ===== */
.notif-bell-btn {
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    color: var(--text-secondary);
    transition: background 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.notif-bell-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.notif-bell-btn.has-notif {
    animation: bellShake 0.5s ease-in-out;
}
@keyframes bellShake {
    0%, 100% { transform: rotate(0); }
    15% { transform: rotate(12deg); }
    30% { transform: rotate(-10deg); }
    45% { transform: rotate(8deg); }
    60% { transform: rotate(-6deg); }
    75% { transform: rotate(3deg); }
}

.notif-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    min-width: 16px;
    height: 16px;
    background: #ef4444;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    border-radius: 99px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    line-height: 1;
    box-shadow: 0 0 0 2px var(--bg-primary);
    animation: badgePop 0.3s ease;
}
@keyframes badgePop {
    0% { transform: scale(0); }
    60% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* ===== NOTIFICATION PANEL ===== */
.notif-panel {
    position: fixed;
    top: 12px;
    right: 12px;
    width: 380px;
    max-height: 500px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.18), 0 4px 12px rgba(0,0,0,0.08);
    z-index: 10000;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-8px) scale(0.97);
    transition: opacity 0.2s ease, transform 0.2s ease;
}
.notif-panel.show {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.notif-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}
.notif-panel-title {
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--text-primary);
}
.notif-mark-all {
    background: none;
    border: none;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.15s;
}
.notif-mark-all:hover {
    background: var(--bg-tertiary);
}

.notif-panel-body {
    max-height: 400px;
    overflow-y: auto;
}

/* ===== NOTIFICATION ITEMS ===== */
.notif-item {
    display: flex;
    gap: 10px;
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.15s;
    border-bottom: 1px solid var(--border);
    position: relative;
}
.notif-item:last-child { border-bottom: none; }
.notif-item:hover { background: var(--bg-tertiary); }
.notif-item.unread {
    background: rgba(59, 130, 246, 0.06);
}
.notif-item.unread:hover {
    background: rgba(59, 130, 246, 0.1);
}
.notif-item-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
    margin-top: 2px;
}
.notif-item-content {
    flex: 1;
    min-width: 0;
}
.notif-item-msg {
    font-size: 0.84rem;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 3px;
}
.notif-item.unread .notif-item-msg {
    font-weight: 600;
}
.notif-item-cat {
    display: inline-block;
    font-size: 0.72rem;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 1px 6px;
    border-radius: 4px;
    margin-bottom: 3px;
}
.notif-item-time {
    font-size: 0.72rem;
    color: var(--text-muted);
}
.notif-item-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #3b82f6;
    flex-shrink: 0;
    margin-top: 6px;
}

/* ===== CLICKABLE TASK CARDS ===== */
.task-card-clickable {
    cursor: pointer;
    transition: box-shadow 0.2s, transform 0.15s;
}
.task-card-clickable:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    transform: translateY(-1px);
}

.notif-delete-read {
    background: rgba(239,68,68,0.1) !important;
    color: #ef4444 !important;
}
.notif-delete-read:hover {
    background: rgba(239,68,68,0.2) !important;
}

.notif-empty {
    padding: 32px 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===== ACCEPT MODAL ===== */
.notif-accept-modal {
    padding: 4px 0;
}
.notif-accept-header {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}
.notif-accept-badge {
    font-size: 0.78rem;
    padding: 3px 8px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    color: var(--text-secondary);
}
.notif-accept-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px 0;
}
.notif-accept-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0 0 12px 0;
    line-height: 1.5;
}
.notif-accept-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}
.notif-accept-meta strong {
    color: var(--text-primary);
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 768px) {
    .notif-panel {
        top: 52px;
        right: 8px;
        left: 8px;
        width: auto;
        max-height: calc(100vh - 70px);
    }
}

/* ===== SIDEBAR BELL ===== */
.sidebar-bell-area {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    margin-bottom: 4px;
}
.sidebar-bell-area .notif-bell-btn {
    margin-right: 6px;
}
.sidebar-bell-area .notif-bell-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
}
/* ===== CHARTS ===== */
.trend-chart-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    margin-top: 20px;
}
.trend-chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.trend-chart-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}
.trend-chart-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}
.trend-chart-container {
    position: relative;
    width: 100%;
    height: 220px;
}
.trend-chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}
.trend-chart-legend {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin-top: 14px;
    flex-wrap: wrap;
}
.trend-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.trend-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}
.trend-chart-tooltip {
    position: absolute;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.78rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    pointer-events: none;
    z-index: 20;
    opacity: 0;
    transition: opacity 0.15s ease;
    min-width: 120px;
}
.trend-chart-tooltip.visible { opacity: 1; }
.trend-tooltip-title {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.trend-tooltip-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 2px 0;
}
.trend-tooltip-label {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Export button styles */
.export-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 0.82rem;
    font-weight: 600;
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
    font-family: inherit;
}
.export-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}
.export-btn svg {
    width: 16px;
    height: 16px;
}

/* Responsive */
@media (max-width: 768px) {
    .trend-chart-container { height: 180px; }
    .trend-chart-card { padding: 16px; }
    .trend-chart-legend { gap: 10px; }
}
/* ===== ONBOARDING TOUR ===== */
.onboarding-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 10000;
    pointer-events: none;
}
.onboarding-backdrop {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(15,23,42,0.6);
    pointer-events: auto;
    z-index: 10001;
}
.onboarding-spotlight {
    position: fixed;
    border-radius: 8px;
    box-shadow: 0 0 0 9999px rgba(15,23,42,0.6);
    z-index: 10002;
    transition: top 0.3s ease, left 0.3s ease, width 0.3s ease, height 0.3s ease, box-shadow 0.3s ease;
    pointer-events: none;
}
.onboarding-tooltip {
    position: fixed;
    width: 340px;
    max-width: 90vw;
    background: var(--bg-secondary);
    border-radius: 14px;
    padding: 20px;
    z-index: 10003;
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
    pointer-events: auto;
    animation: onb-fade 0.3s ease;
}
@keyframes onb-fade {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.onb-step-icon {
    font-size: 1.6rem;
    margin-bottom: 8px;
}
.onb-step-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.onb-step-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 16px;
}
.onb-step-counter {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-weight: 600;
}
.onb-progress {
    display: flex;
    gap: 4px;
    margin-bottom: 14px;
}
.onb-progress-dot {
    width: 24px;
    height: 4px;
    border-radius: 2px;
    background: var(--border);
    transition: background 0.2s;
}
.onb-progress-dot.active {
    background: var(--primary);
}
.onb-progress-dot.done {
    background: #10b981;
}
.onb-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.onb-btn {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    font-family: inherit;
    transition: background 0.15s ease, color 0.15s ease;
}
.onb-btn-skip {
    background: transparent;
    color: var(--text-muted);
}
.onb-btn-skip:hover { color: var(--text-primary); }
.onb-btn-next {
    background: var(--primary);
    color: white;
}
.onb-btn-next:hover { filter: brightness(1.1); }
.onb-btn-prev {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    margin-right: 8px;
}
.onb-btn-prev:hover { background: var(--border); }

@media (max-width: 768px) {
    .onboarding-tooltip { width: 280px; padding: 16px; }
}
/* ===== Reports Page ===== */

/* ── Layout / Header row ── */
.rpt-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.rpt-date-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.rpt-label-date {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.rpt-export-btns {
    display: flex;
    gap: 8px;
}

/* ── History section ── */
.rpt-history-section {
    margin-top: 20px;
}

.rpt-history-heading {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* ── Weekend notice ── */
.rpt-weekend-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

/* ── Empty state card ── */
.rpt-empty-card {
    text-align: center;
    padding: 40px;
}

.rpt-empty-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.rpt-empty-hint-top {
    margin-top: 14px;
}

/* ── Report card shell ── */
.rpt-report-card {
    padding: 0;
    overflow: hidden;
    border: none;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}

.rpt-card-inner-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

/* ── Stat grid (5 cols) ── */
.rpt-stat-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

/* ── Stat grid (2 cols) — for 7h card ── */
.rpt-stat-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 12px;
}

/* ── Stat label inside colored boxes ── */
.rpt-stat-label {
    font-size: 0.72rem;  /* A: 0.62rem (9.3px) → 0.72rem WCAG 1.4.4 */
    text-transform: uppercase;
    letter-spacing: 0.8px;  /* giảm từ 1px — dễ đọc hơn ở size nhỏ */
    color: rgba(255,255,255,0.95);  /* A: 0.8 → 0.95 — tăng contrast trên nền màu */
    font-weight: 600;
    margin-bottom: 4px;
    min-height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ── History table rows ── */
.rpt-tr-clickable {
    cursor: pointer;
}

.rpt-td-date-muted {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.rpt-td-center-bold {
    text-align: center;
    font-weight: 600;
}

.rpt-td-center {
    text-align: center;
}

.rpt-td-secondary {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

/* ── Archive section ── */
.rpt-archive-section {
    margin-top: 10px;
}

.rpt-archive-btn {
    font-size: 0.78rem;
}

/* ── Form: reporter section ── */
.rpt-reporter-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

/* ── Form: summary cell (stepper container) ── */
.rpt-summary-cell {
    text-align: center;
}

.rpt-summary-label {
    font-size: 0.68rem;
    font-weight: 700;
    margin-bottom: 3px;
    white-space: nowrap;
}

.rpt-summary-value-row {
    display: flex;
    align-items: center;
    gap: 3px;
    justify-content: center;
}

/* ── Form layouts ── */
.rpt-form-2col {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.rpt-form-half {
    flex: 1;
}

.rpt-form-3col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 6px;
    margin-bottom: 8px;
}

.rpt-form-4col-surgery {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 5px;
}

/* Mobile: giảm xuống 2 cột cho màn hình nhỏ */
@media (max-width: 768px) {
    .rpt-stat-grid              { grid-template-columns: repeat(2, 1fr); } /* A: 5 cột → 2 cột mobile */
    .rpt-stat-grid-2            { grid-template-columns: 1fr; }            /* A: 2 cột → 1 cột mobile */
    .rpt-form-4col-surgery,
    .rpt-form-4col-surgery-mb   { grid-template-columns: 1fr 1fr; }       /* A: 4 cột → 2 cột mobile */
}

/* ── Form: notes & details ── */
.rpt-notes-section {
    margin-bottom: 6px;
}

.rpt-notes-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.rpt-details-toggle {
    cursor: pointer;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 3px 0;
}

/* ── Reporter label (7h form, slightly larger) ── */
.rpt-reporter-label-lg {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

/* ── Guide button (header) ── */
.rpt-guide-btn {
    background: #0284c7;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(2,132,199,0.3);
    transition: background-color .2s ease, box-shadow .2s ease;
}
.rpt-guide-btn:hover { background: #0369a1; }

/* ── Export orange btn (inside export area) ── */
.rpt-export-orange {
    background: #f97316;
    color: #fff;
    border: none;
    font-size: 0.78rem;
}

/* ── Edit button inside dark card header ── */
.rpt-edit-btn {
    background: rgba(255,255,255,0.12);
    color: #e2e8f0;
    border: 1px solid rgba(255,255,255,0.25);
    font-size: 0.72rem;
    cursor: pointer;
}

/* ── Date input inside controls ── */
.rpt-date-input {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg-card);
    color: var(--text-primary);
}

/* ── Empty text (history) ── */
.rpt-empty-text {
    color: var(--text-muted);
    font-size: 0.82rem;
}

/* ── Guide modal content ── */
.rpt-guide-content {
    max-width: 100%;
    font-family: 'Inter', sans-serif;
    color: #1e293b;
    line-height: 1.65;
    font-size: 0.92rem;
}

/* ── Stats tab nav controls ── */
.rpt-stats-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.rpt-stats-range-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 180px;
    text-align: center;
}

/* ── 4-col surgery grid for form ── */
.rpt-form-4col-surgery-mb {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 5px;
    margin-bottom: 8px;
}

/* ── Detail expand fields (hidden/shown by JS) ── */
.rpt-detail-field {
    margin-bottom: 6px;
}

/* ── Card header: dark gradient (16h report) ── */
.rpt-card-header {
    background: linear-gradient(135deg,#0f172a 0%,#1e293b 50%,#334155 100%);
    padding: 18px 22px;
    color: #fff;
    position: relative;
}

.rpt-card-header-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.rpt-card-dept {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: #94a3b8;
    margin-bottom: 6px;
    font-weight: 500;
}

.rpt-card-title {
    font-size: 1.25rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: 0.5px;
    color: #fff;
}

.rpt-card-date {
    font-size: 0.9rem;
    margin-top: 5px;
    color: #e2e8f0;
    font-weight: 500;
}

/* ── Card 7h header: blue gradient ── */
.rpt-card-header-7h {
    background: linear-gradient(135deg,#0c4a6e 0%,#075985 50%,#0369a1 100%);
    padding: 18px 22px;
    color: #fff;
    position: relative;
}

.rpt-card-dept-7h {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: #7dd3fc;
    margin-bottom: 6px;
    font-weight: 500;
}

.rpt-card-date-7h {
    font-size: 0.9rem;
    margin-top: 5px;
    color: #bae6fd;
    font-weight: 500;
}

/* ── Stat box body padding ── */
.rpt-stat-body {
    padding: 16px 22px;
    background: #fff;
}
[data-theme="dark"] .rpt-stat-body { background: var(--bg-secondary); }

.rpt-stat-detail-body {
    padding: 0 22px 16px;
    background: #fff;
}
[data-theme="dark"] .rpt-stat-detail-body { background: var(--bg-secondary); }

/* ── Stat colored boxes (5-col grid items) ── */
.rpt-box-stat {
    border-radius: 10px;
    padding: 12px 8px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.rpt-box-blue  { background: #0284c7; }
.rpt-box-red   { background: #e11d48; }
.rpt-box-green { background: #059669; }
.rpt-box-amber { background: #d97706; }
.rpt-box-purple{ background: #7c3aed; }

.rpt-stat-value-big {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
}

/* ── Left-border notification blocks (card detail) ── */
.rpt-block {
    border-radius: 0 8px 8px 0;
    padding: 10px 14px;
    margin-bottom: 10px;
}

.rpt-block-blue   { background: #eff6ff; border-left: 4px solid #3b82f6; }
.rpt-block-green  { background: #f0fdf4; border-left: 4px solid #22c55e; }
.rpt-block-slate  { background: #f8fafc; border-left: 4px solid #94a3b8; }
.rpt-block-red    { background: #fef2f2; border-left: 4px solid #ef4444; }
.rpt-block-indigo { background: #eff6ff; border-left: 4px solid #3b82f6; }
.rpt-block-purple { background: #faf5ff; border-left: 4px solid #7c3aed; }

.rpt-block-label {
    font-weight: 700;
    font-size: 0.82rem;
    margin-bottom: 3px;
}

/* ── Card footer ── */
.rpt-card-footer {
    padding: 10px 22px;
    background: #f1f5f9;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: #475569;
}

.rpt-card-footer-7h {
    padding: 10px 22px;
    background: #f0f9ff;
    border-top: 1px solid #bae6fd;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: #0369a1;
}

/* ── Form 7h: total patient row ── */
.rpt-form-total-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: linear-gradient(135deg,#0c4a6e,#0369a1);
    border-radius: 10px;
    margin-bottom: 10px;
}

/* ── Weekend card weekend-specific text ── */
.rpt-weekend-title {
    font-size: 1rem;
    font-weight: 700;
    color: #92400e;
    margin-bottom: 6px;
}

.rpt-weekend-sub {
    font-size: 0.85rem;
    color: #a16207;
}

.report-stat-card {
    background: var(--bg-secondary);
    border-left: 3px solid var(--primary);
    border-radius: 8px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.report-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.report-stat-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.report-row-active {
    background: var(--bg-secondary) !important;
    border-left: 3px solid var(--primary);
}

/* Report form enhancements */
.report-stat-card:nth-child(3) { border-left-color: #22c55e; }
.report-stat-card:nth-child(4) { border-left-color: #f59e0b; }

/* ===== Chips Grid — Desktop: 3 cols, Mobile: 2 cols ===== */
.report-chips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
}

.report-chip {
    white-space: nowrap;
}

@media (max-width: 768px) {
    .report-stat-card {
        padding: 8px 10px;
    }
    .report-stat-value {
        font-size: 1.2rem;
    }

    /* Chips → 2 columns on mobile */
    .report-chips-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 5px;
    }
    .report-chip {
        white-space: normal !important;
        word-break: keep-all;
        padding: 8px 4px !important;
        font-size: 0.78rem !important;
        line-height: 1.3;
    }
}

/* ===== DARK MODE OVERRIDES ===== */
[data-theme="dark"] .rpt-block-blue   { background: rgba(59,130,246,0.12);  }
[data-theme="dark"] .rpt-block-green  { background: rgba(34,197,94,0.12);   }
[data-theme="dark"] .rpt-block-slate  { background: rgba(148,163,184,0.08); }
[data-theme="dark"] .rpt-block-red    { background: rgba(239,68,68,0.12);   }
[data-theme="dark"] .rpt-block-indigo { background: rgba(99,102,241,0.12);  }
[data-theme="dark"] .rpt-block-purple { background: rgba(124,58,237,0.12);  }

[data-theme="dark"] .rpt-card-footer {
    background: var(--bg-tertiary);
    border-top-color: var(--border);
    color: var(--text-secondary);
}
[data-theme="dark"] .rpt-card-footer-7h {
    background: rgba(8,145,178,0.12);
    border-top-color: rgba(8,145,178,0.3);
    color: var(--primary-light);
}

/* Weekend card text — warm amber readable trên dark */
[data-theme="dark"] .rpt-weekend-title { color: #fbbf24; }
[data-theme="dark"] .rpt-weekend-sub   { color: #f59e0b; }

/* Stat numbers — tăng tương phản trên dark */
[data-theme="dark"] .cp-stat-person .cp-stat-num { color: #a78bfa; }
[data-theme="dark"] .cp-stat-lang   .cp-stat-num { color: #60a5fa; }
[data-theme="dark"] .cp-stat-lang-vi .cp-stat-num { color: #34d399; }

/* ===== REPORT BODY UTILITY CLASSES (thay inline styles) ===== */

/* Wrapper div chứa stat grid và detail sections */
.rpt-body-padding {
    padding: 16px 22px;
    background: var(--bg-primary);
}
.rpt-detail-padding {
    padding: 0 22px 16px;
    background: var(--bg-primary);
}

/* Info blocks (thay background:#eff6ff, #f0fdf4, #fef2f2, #faf5ff inline) */
.rpt-info-blue {
    background: #eff6ff;
    border-left: 4px solid #3b82f6;
    padding: 10px 14px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 10px;
}
.rpt-info-green {
    background: #f0fdf4;
    border-left: 4px solid #22c55e;
    padding: 10px 14px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 10px;
}
.rpt-info-red {
    background: #fef2f2;
    border-left: 4px solid #ef4444;
    padding: 10px 14px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 10px;
}
.rpt-info-purple {
    background: #faf5ff;
    border-left: 4px solid #7c3aed;
    padding: 10px 14px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 10px;
}
[data-theme="dark"] .rpt-info-blue   { background: rgba(59,130,246,0.12); }
[data-theme="dark"] .rpt-info-green  { background: rgba(34,197,94,0.12);  }
[data-theme="dark"] .rpt-info-red    { background: rgba(239,68,68,0.12);  }
[data-theme="dark"] .rpt-info-purple { background: rgba(124,58,237,0.12); }

.rpt-info-title-blue   { font-weight: 700; color: #1d4ed8; font-size: 0.82rem; margin-bottom: 3px; }
.rpt-info-title-green  { font-weight: 700; color: #15803d; font-size: 0.82rem; margin-bottom: 3px; }
.rpt-info-title-red    { font-weight: 700; color: #dc2626; font-size: 0.82rem; margin-bottom: 3px; }
.rpt-info-title-purple { font-weight: 700; color: #7c3aed; font-size: 0.82rem; margin-bottom: 3px; }
[data-theme="dark"] .rpt-info-title-blue   { color: #60a5fa; }
[data-theme="dark"] .rpt-info-title-green  { color: #34d399; }
[data-theme="dark"] .rpt-info-title-red    { color: #f87171; }
[data-theme="dark"] .rpt-info-title-purple { color: #a78bfa; }

.rpt-info-val-blue   { font-size: 0.95rem; color: #1e3a8a; font-weight: 600; }
.rpt-info-val-green  { font-size: 0.95rem; color: #166534; font-weight: 600; }
[data-theme="dark"] .rpt-info-val-blue  { color: #93c5fd; }
[data-theme="dark"] .rpt-info-val-green { color: #6ee7b7; }

/* Form steppers (thay background:#ecfdf5, #fef2f2, #faf5ff, #eff6ff) */
.rpt-stepper-green  { background: #ecfdf5; border-radius: 8px; padding: 7px 4px; }
.rpt-stepper-red    { background: #fef2f2; border-radius: 8px; padding: 7px 4px; }
.rpt-stepper-purple { background: #faf5ff; border-radius: 8px; padding: 7px 4px; }
.rpt-stepper-blue   { background: #eff6ff; border-radius: 8px; padding: 8px 10px; margin-bottom: 6px; }
.rpt-stepper-green2 { background: #f0fdf4; border-radius: 8px; padding: 8px 10px; margin-bottom: 6px; }
[data-theme="dark"] .rpt-stepper-green  { background: rgba(52,211,153,0.1);  }
[data-theme="dark"] .rpt-stepper-red    { background: rgba(239,68,68,0.1);   }
[data-theme="dark"] .rpt-stepper-purple { background: rgba(124,58,237,0.1);  }
[data-theme="dark"] .rpt-stepper-blue   { background: rgba(59,130,246,0.1);  }
[data-theme="dark"] .rpt-stepper-green2 { background: rgba(34,197,94,0.1);   }

/* Guide/help boxes (thay background:#ecfdf5 border:#a7f3d0 color:#065f46) */
.rpt-guide-box-green {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.85rem;
    color: #065f46;
    margin: 6px 0;
}
.rpt-guide-box-blue {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.85rem;
    color: #1e40af;
    margin: 6px 0;
}
.rpt-guide-box-white {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    margin: 6px 0;
}
[data-theme="dark"] .rpt-guide-box-green {
    background: rgba(52,211,153,0.1);
    border-color: rgba(52,211,153,0.25);
    color: #34d399;
}
[data-theme="dark"] .rpt-guide-box-blue {
    background: rgba(59,130,246,0.1);
    border-color: rgba(59,130,246,0.25);
    color: #60a5fa;
}

/* Reporter chips */
.r16h-chip-unselected { background: var(--bg-tertiary); color: var(--text-secondary); border-color: var(--border); }
.r7h-chip-unselected  { background: var(--bg-tertiary); color: var(--text-secondary); border-color: var(--border); }

/* Input inside colored form sections */
.rpt-input-amber {
    width: 52px; text-align: center;
    font-size: 1.3rem; font-weight: 800;
    border: 2px solid rgba(245,158,11,0.27);
    border-radius: 8px; padding: 3px;
    color: var(--warning);
    background: var(--bg-primary);
}
/* ===== MOBILE HEADER — Hidden on desktop ===== */
.mobile-header { display: none; }

/* ===== MOBILE RESPONSIVE — max-width: 768px ===== */

@media (max-width: 768px) {

    /* ---- Mobile Header Bar ---- */
    .mobile-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 52px;
        padding: 0 12px;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border);
        z-index: 1001;
        box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    }

    .mobile-header-left {
        display: flex;
        align-items: center;
        gap: 8px;
        color: var(--primary);
        min-width: 0;
    }
    .mobile-header-logo {
        width: 28px;
        height: 28px;
        object-fit: contain;
        flex-shrink: 0;
    }
    .mobile-header-title {
        font-size: 0.82rem;
        font-weight: 700;
        color: var(--text-primary);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-header-right {
        display: flex;
        align-items: center;
        gap: 6px;
        flex-shrink: 0;
    }

    /* Theme toggle button trong mobile header */
    .mobile-theme-toggle {
        width: 36px;
        height: 36px;
        min-width: 44px;  /* A M1: WCAG 2.5.5 — cả 2 chiều ≥ 44px */
        min-height: 44px; /* WCAG 2.5.5 touch target */
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--bg-tertiary);
        border: 1px solid var(--border);
        border-radius: 50%;
        color: var(--text-secondary);
        cursor: pointer;
        transition: background var(--transition-fast), color var(--transition-fast);
        flex-shrink: 0;
        padding: 0;
    }
    .mobile-theme-toggle:hover {
        background: var(--bg-hover);
        color: var(--primary);
    }

    .mobile-user-avatar {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 0.72rem; /* fix: 0.65rem → 0.72rem WCAG 1.4.4 */
        font-weight: 700;
        flex-shrink: 0;
    }
    /* Hide full name on mobile to save space */
    .mobile-user-name {
        display: none !important;
    }
    .mobile-logout-btn {
        background: none;
        border: 1px solid rgba(239,68,68,0.3);
        color: #ef4444;
        padding: 6px 12px;
        min-height: 44px; /* A3: WCAG 2.5.5 touch target */
        border-radius: 6px;
        font-size: 0.72rem; /* fix: 0.68rem → 0.72rem WCAG 1.4.4 */
        font-weight: 600;
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 3px;
        transition: background 0.2s, color 0.2s;
    }
    .mobile-logout-btn:hover, .mobile-logout-btn:active {
        background: rgba(239,68,68,0.1);
    }

    /* ---- Body & App Layout ---- */
    body { overflow: auto; height: auto; }
    #app { flex-direction: column; height: auto; min-height: 100vh; }

    /* ---- Sidebar → Bottom Nav ---- */
    .sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        top: auto;
        width: 100% !important;
        height: auto;
        flex-direction: row;
        border-right: none;
        border-top: 1px solid var(--border);
        z-index: 1000;
        background: var(--bg-secondary);
        box-shadow: 0 -2px 12px rgba(0,0,0,0.08);
    }

    .sidebar-logo { display: none; }
    .sidebar-footer { display: none; }

    .sidebar-nav {
        flex-direction: row;
        padding: 0;
        gap: 0;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        width: 100%;
        justify-content: flex-start;
    }
    .sidebar-nav::-webkit-scrollbar { display: none; }

    .nav-item {
        flex-direction: column;
        gap: 2px;
        padding: 7px 4px 5px;
        /* U4 fix: 0.6rem (9px) → 0.72rem (10.8px) — WCAG 1.4.4 min font-size */
        font-size: 0.72rem;
        min-width: 56px;
        min-height: 44px; /* A3: WCAG 2.5.5 touch target */
        text-align: center;
        justify-content: center;
        align-items: center;
        border-radius: 0;
        flex-shrink: 0;
    }
    .nav-item::before { display: none; }
    .nav-item svg { width: 18px; height: 18px; }
    .nav-item span {
        display: block !important;
        /* U0 A2: 0.58rem = 8.1px — tăng lên 0.73rem ≈ 10.9px ≥ WCAG min */
        font-size: 0.73rem;
        white-space: nowrap;
        max-width: 54px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .nav-item.active {
        background: rgba(8,145,178,0.1);
        border-top: 2px solid var(--primary);
    }

    /* ---- Main Content ---- */
    .main-content {
        margin-left: 0 !important;
        padding: 62px 12px 72px; /* top: header, bottom: nav bar */
        height: auto;
        min-height: 100vh;
    }

    /* ---- Page Headers ---- */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 14px;
    }
    .page-title { font-size: 1.2rem; }
    .page-subtitle { font-size: 0.78rem; }

    /* ---- Dashboard Stats ---- */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 8px;
    }
    .stat-card { padding: 12px; }
    .stat-card::after { width: 50px; height: 50px; }
    .stat-value { font-size: 1.4rem; }
    .stat-label { font-size: 0.72rem; } /* fix: 0.68rem → 0.72rem */
    .stat-icon { width: 30px; height: 30px; }
    .stat-icon svg { width: 14px; height: 14px; }

    .dashboard-grid {
        grid-template-columns: 1fr !important;
        gap: 12px;
    }
    .chart-container { height: 200px; }
    .chart-card, .widget-card { padding: 14px; }

    /* ---- Cards ---- */
    .card { padding: 12px; }

    /* ---- Tables ---- */
    .table-container { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    thead th { padding: 8px 8px; font-size: 0.72rem; white-space: nowrap; } /* fix: 0.68rem → 0.72rem */
    tbody td { padding: 8px; font-size: 0.78rem; }

    /* ---- Search Box ---- */
    .search-box { width: 100%; }

    /* ---- Form ---- */
    .form-row { grid-template-columns: 1fr !important; gap: 8px !important; }
    .form-input, .form-select, .form-textarea { font-size: 16px; } /* prevents iOS zoom */
    .form-group { margin-bottom: 10px; }
    .form-label { font-size: 0.72rem; margin-bottom: 4px; }

    /* U0 A1: Xóa override btn-icon 32px — giữ 44x44px từ base.css (WCAG 2.5.5) */
    .btn { padding: 8px 12px; font-size: 0.78rem; }
    .btn-sm { padding: 5px 10px; font-size: 0.72rem; }

    /* ===== CALENDAR / PLANS ===== */
    .calendar-controls {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    .calendar-nav {
        justify-content: space-between;
        gap: 6px;
    }
    .calendar-month-label {
        font-size: 0.82rem;
        min-width: auto;
    }
    .calendar-view-modes {
        align-self: center;
    }
    .view-mode-btn {
        padding: 6px 12px;
        font-size: 0.75rem;
    }

    /* Month grid — tighter on mobile */
    .calendar-grid { border-radius: 8px; }
    .calendar-day-header {
        padding: 6px 2px;
        /* U4 fix: 0.62rem (9.3px) → 0.72rem (10.8px) — WCAG 1.4.4 */
        font-size: 0.72rem;
    }
    .calendar-day {
        min-height: 72px;
        padding: 4px 3px;
    }
    .day-number {
        font-size: 0.72rem;
        margin-bottom: 2px;
    }
    .calendar-day.today .day-number {
        width: 22px; height: 22px;
        font-size: 0.72rem; /* fix: 0.68rem → 0.72rem */
    }
    .calendar-event {
        /* U0 A2: 0.58rem = 8.1px — tăng lên 0.72rem */
        font-size: 0.72rem;
        padding: 2px 3px;
        margin-bottom: 1px;
        border-radius: 3px;
        line-height: 1.3;
    }
    .calendar-event.multi-day {
        margin-left: -3px;
        margin-right: -3px;
        padding-left: 5px;
    }
    .calendar-event.multi-start { margin-left: 0; }
    .calendar-event.multi-end { margin-right: 0; }

    /* Week / 3‑day column view */
    .calendar-columns { border-radius: 8px; }
    .cal-col-header { padding: 8px 4px; }
    /* U0 A2: các giá trị dưới 0.73rem — tăng lên tối thiểu 0.72rem */
    .cal-col-day { font-size: 0.72rem; }
    .cal-col-date { font-size: 0.78rem; }
    .cal-col-date.today-num { width: 24px; height: 24px; }
    .cal-time-slot { font-size: 0.72rem; padding: 2px 4px; }  /* 0.6rem → 0.72rem */
    .cal-event { font-size: 0.72rem; padding: 2px 4px; }      /* 0.62rem → 0.72rem */
    .cal-event-time { font-size: 0.72rem; }                   /* 0.55rem → 0.72rem */
    .cal-event-title { font-size: 0.72rem; }                  /* 0.62rem → 0.72rem */
    .cal-event-allday { font-size: 0.72rem; padding: 2px 4px; } /* 0.62rem → 0.72rem */

    /* ===== SURGERY SCHEDULE ===== */
    .surgery-controls {
        flex-direction: column;
        gap: 8px;
        align-items: stretch;
    }
    .surgery-controls .page-header {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .surgery-stats {
        flex-wrap: wrap;
        gap: 6px;
    }
    .surgery-stat-chip {
        font-size: 0.72rem;
        padding: 4px 10px;
    }
    .surgery-week-grid {
        grid-template-columns: 1fr !important;
        gap: 8px;
    }
    .surgery-day { min-height: auto; }
    .surgery-day-header { padding: 8px 10px; }
    .surgery-summary-panel {
        flex-direction: column;
        padding: 8px 12px;
        gap: 6px;
        align-items: flex-start;
    }
    .surgery-summary-chips { gap: 8px; }
    .surgery-summary-chip { font-size: 0.72rem; }
    .surgery-summary-total { padding-left: 0; border-left: none; }
    .surgery-detail-label { flex: 0 0 100px; font-size: 0.78rem; }
    .surgery-detail-value { font-size: 0.82rem; }

    /* ===== STAFF ===== */
    .staff-grid {
        grid-template-columns: 1fr !important;
    }
    .staff-subtabs {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .staff-subtab {
        padding: 8px 14px;
        font-size: 0.78rem;
        white-space: nowrap;
    }
    .staff-filters {
        flex-wrap: wrap;
        gap: 6px;
    }
    .filter-btn {
        padding: 6px 12px;
        font-size: 0.75rem;
    }
    .staff-name-cell {
        gap: 8px;
    }
    .staff-fullname {
        white-space: normal;
        word-break: break-word;
    }

    /* Staff table: bọc overflow để tên không bị squeeze dọc */
    .staff-table-card {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .staff-table-card table {
        min-width: 540px;   /* đủ chỗ 6 cột, scroll ngang khi cần */
    }
    /* Ẩn cột Email trên mobile để table gọn hơn */
    .staff-table-card th:nth-child(5),
    .staff-table-card td:nth-child(5) {
        display: none;
    }

    /* ===== RESEARCH / SHCM ===== */
    .rsch-stats {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 8px;
    }
    .rsch-stat-card { padding: 12px; }
    .rsch-stat-val { font-size: 1.4rem; }
    .rsch-stat-lbl { font-size: 0.72rem; } /* fix: 0.7rem → 0.72rem */
    .rsch-settings-card { padding: 10px 12px !important; }
    .rsch-settings-row {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    .rsch-time-input, .rsch-dur-input { width: 100% !important; }
    .rsch-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .rsch-table { min-width: 600px; font-size: 0.75rem; }
    .rsch-table td, .rsch-table th { padding: 6px 4px; }
    .rsch-file-name { max-width: 160px; }
    .rsch-file-item { padding: 8px 10px; gap: 8px; }
    .rsch-files-header {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    /* ===== SCHEDULE (Phân công tuần) ===== */
    .schedule-table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .schedule-table { min-width: 700px; }

    /* ===== PATIENT ===== */
    .patient-stats {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 8px;
    }
    .patient-room-filters {
        flex-wrap: wrap;
        gap: 5px;
    }
    .patient-room-filters .btn { font-size: 0.72rem; padding: 4px 8px; } /* fix: 0.7rem → 0.72rem */

    /* ===== ROOMS ===== */
    .room-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 8px;
    }

    /* ===== TASKS ===== */
    .kanban-board {
        grid-template-columns: 1fr !important;
    }

    /* ===== MODAL — Bottom Sheet style ===== */
    .modal-overlay {
        align-items: flex-end !important;
    }
    .modal, .modal-content {
        width: 100% !important;
        max-width: none !important;
        margin: 0;
        border-radius: 16px 16px 0 0;
        max-height: 90dvh;  /* A M4: dvh (dynamic viewport height) — trừ bàn phím ảo Android */
        display: flex;
        flex-direction: column;
        animation: slideUpModal 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .modal-header {
        padding: 14px 16px;
        position: sticky;
        top: 0;
        background: var(--bg-secondary);
        z-index: 2;
        border-radius: 16px 16px 0 0;
    }
    .modal-body {
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 12px 14px;
    }
    .modal-footer {
        position: sticky;
        bottom: 0;
        background: var(--bg-secondary);
        z-index: 2;
        padding: 10px 14px;
        border-top: 1px solid var(--border);
        box-shadow: 0 -2px 8px rgba(0,0,0,0.05);
        gap: 8px;
    }
    .modal-footer .btn {
        flex: 1;
        justify-content: center;
    }
    .modal-title { font-size: 1rem; }

    @keyframes slideUpModal {
        from { transform: translateY(100%); }
        to { transform: translateY(0); }
    }

    /* ===== LOGIN ===== */
    .login-card {
        width: 95% !important;
        max-width: none !important;
        padding: 24px 20px;
    }

    /* ===== SURGERY STATS ===== */
    .surgery-stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    .surgery-stats-charts {
        grid-template-columns: 1fr !important;
    }

    /* ===== REPORTS ===== */
    .report-stat-card { padding: 8px 10px; }
    .report-stat-value { font-size: 1.15rem; }

    /* ===== HIDE NON-ESSENTIAL ===== */
    .stat-change { display: none; }

    /* ===== SCROLL FADE — bottom nav ===== */
    .sidebar::after {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        width: 24px;
        background: linear-gradient(to right, transparent, var(--bg-secondary));
        pointer-events: none;
        z-index: 1;
    }
}

/* ===== SMALL PHONES — max-width: 480px ===== */
@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr !important; }
    .patient-stats { grid-template-columns: 1fr !important; }
    .room-grid { grid-template-columns: 1fr !important; }
    .surgery-stats-grid { grid-template-columns: 1fr !important; }
    .rsch-stats { grid-template-columns: 1fr !important; }
    .main-content { padding: 60px 8px 68px; }
    .nav-item { min-width: 48px; padding: 6px 3px 4px; }
    .nav-item svg { width: 16px; height: 16px; }
    /* U0 A2: 0.52rem = 7.3px — tăng lên 0.72rem (min WCAG) */
    .nav-item span { font-size: 0.72rem; max-width: 46px; }
    .page-title { font-size: 1.05rem; }
    .page-subtitle { font-size: 0.72rem; }

    /* Calendar even tighter */
    .calendar-day { min-height: 60px; padding: 2px; }
    /* U0 A2: 0.52rem → 0.72rem */
    .calendar-event { font-size: 0.72rem; padding: 1px 2px; }
    .day-number { font-size: 0.72rem; } /* fix: 0.65rem → 0.72rem */
}

/* ===== iOS ZOOM PREVENTION — schedule-select ===== */
/* A C1: font-size < 16px trên input/select gây iOS Safari tự zoom viewport */
@media (max-width: 768px) {
    .schedule-select { font-size: 16px !important; } /* iOS chống zoom khi focus */
}

/* ===== SAFE AREA INSETS — iPhone notch + home bar ===== */
/* A M2-safe: viewport-fit=cover + env() cho iPhone X trở lên */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    @media (max-width: 768px) {
        /* Bottom nav: đẩy lên trên home bar */
        .sidebar {
            padding-bottom: env(safe-area-inset-bottom);
        }
        /* Main content: đảm bảo không bị che bởi bottom nav + home bar */
        .main-content {
            padding-bottom: calc(68px + env(safe-area-inset-bottom));
        }
        /* Modal footer: không bị chạm home bar */
        .modal-footer {
            padding-bottom: calc(10px + env(safe-area-inset-bottom));
        }
    }
    @media (max-width: 480px) {
        .main-content {
            padding-bottom: calc(68px + env(safe-area-inset-bottom));
        }
    }
}
