*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html { font-size: 14px; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
    height: 100vh;
}

#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: all 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; }
.btn-icon {
    width: 36px; height: 36px; 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: all 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: all 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; }

/* 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); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}
.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; }
}