/* ===== CONFERENCES PAGE ===== */

/* Stats row */
.conf-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.conf-stat-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 16px;
    text-align: center;
    box-shadow: var(--glass-shadow);
    transition: transform var(--transition-fast);
}

.conf-stat-card:hover {
    transform: translateY(-2px);
}

.conf-stat-val {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}

.conf-stat-lbl {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.conf-stat-intl .conf-stat-val { color: #2563eb; }
.conf-stat-asean .conf-stat-val { color: #d97706; }
.conf-stat-soon .conf-stat-val { color: #dc2626; }

/* Filter bar */
.conf-filters {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.conf-filter-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.conf-filter-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.conf-filter-select {
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-light);
    background: var(--bg-secondary);
    font-size: 0.82rem;
    font-family: inherit;
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.conf-filter-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

/* Conference cards grid */
.conf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 16px;
}

/* Conference card */
.conf-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.conf-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Left color strip */
.conf-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: 4px 0 0 4px;
}

.conf-card[data-region="international"]::before { background: linear-gradient(180deg, #2563eb, #7c3aed); }
.conf-card[data-region="domestic"]::before { background: linear-gradient(180deg, #059669, #10b981); }
.conf-card[data-region="asean"]::before { background: linear-gradient(180deg, #d97706, #f59e0b); }

/* Glow for upcoming ≤30 days */
.conf-card.conf-soon {
    border-color: rgba(220, 38, 38, 0.25);
    box-shadow: var(--glass-shadow), 0 0 16px rgba(220, 38, 38, 0.08);
}

/* Past events */
.conf-card.conf-past {
    opacity: 0.55;
}

.conf-card.conf-past:hover {
    opacity: 0.8;
}

/* Happening now */
.conf-card.conf-now {
    border-color: rgba(8, 145, 178, 0.3);
    box-shadow: var(--glass-shadow), 0 0 20px rgba(8, 145, 178, 0.12);
}

/* Badge row */
.conf-badges {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.conf-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.conf-badge-intl { background: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
.conf-badge-domestic { background: #ecfdf5; color: #059669; border: 1px solid #a7f3d0; }
.conf-badge-asean { background: #fffbeb; color: #d97706; border: 1px solid #fed7aa; }

.conf-badge-colorectal { background: #fdf2f8; color: #db2777; border: 1px solid #fbcfe8; }
.conf-badge-gi { background: #f0fdf4; color: #16a34a; border: 1px solid #bbf7d0; }
.conf-badge-gastro { background: #fefce8; color: #ca8a04; border: 1px solid #fde68a; }
.conf-badge-onco { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }
.conf-badge-other { background: #f1f5f9; color: #64748b; border: 1px solid #cbd5e1; }

.conf-badge-past { background: #f1f5f9; color: #94a3b8; border: 1px solid #e2e8f0; }
.conf-badge-now { background: #ecfdf5; color: #059669; border: 1px solid #86efac; animation: pulse-badge 2s infinite; }
.conf-badge-soon { background: #fef2f2; color: #dc2626; border: 1px solid #fca5a5; }

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

/* Card content */
.conf-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
    line-height: 1.35;
}

.conf-name-vi {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    font-style: italic;
}

.conf-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.conf-info-row {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.conf-info-icon {
    flex-shrink: 0;
    width: 18px;
    text-align: center;
}

.conf-countdown {
    font-weight: 700;
    color: var(--primary);
}

.conf-countdown.conf-countdown-soon {
    color: #dc2626;
}

.conf-countdown.conf-countdown-past {
    color: var(--text-muted);
    font-weight: 500;
}

.conf-countdown.conf-countdown-now {
    color: #059669;
}

.conf-website a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.8rem;
    transition: color var(--transition-fast);
}

.conf-website a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Card footer / actions */
.conf-actions {
    display: flex;
    gap: 6px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

/* 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;
}

/* Month separator */
.conf-month-header {
    grid-column: 1 / -1;
    padding: 8px 0;
    margin-top: 8px;
}

.conf-month-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.conf-month-line {
    flex: 1;
    height: 1px;
    background: var(--border-light);
}

/* Responsive */
@media (max-width: 768px) {
    .conf-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .conf-grid {
        grid-template-columns: 1fr;
    }
    
    .conf-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .conf-filter-group {
        width: 100%;
    }
    
    .conf-filter-select {
        flex: 1;
    }
}