/* ═══════════════════════════════════════════════════════════════════════════
   iGeouz Admin Dashboard — Premium Analytics UI
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    --admin-card-bg: #ffffff;
    --admin-card-border: rgba(0, 0, 0, 0.06);
    --admin-card-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    --admin-section-border: rgba(0, 0, 0, 0.08);
    --admin-header-bg: rgba(0, 0, 0, 0.02);
    --admin-list-item-bg: #f8fafc;
    --admin-table-border: rgba(0, 0, 0, 0.04);
    --admin-input-bg: #ffffff;
    --admin-input-border: rgba(0, 0, 0, 0.1);
    --admin-map-bg: #f1f5f9;
}

[data-theme="dark"] {
    --admin-card-bg: rgba(255, 255, 255, 0.03);
    --admin-card-border: rgba(255, 255, 255, 0.06);
    --admin-card-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    --admin-section-border: rgba(255, 255, 255, 0.06);
    --admin-header-bg: rgba(255, 255, 255, 0.02);
    --admin-list-item-bg: rgba(0, 0, 0, 0.15);
    --admin-table-border: rgba(255, 255, 255, 0.04);
    --admin-input-bg: rgba(0, 0, 0, 0.2);
    --admin-input-border: rgba(255, 255, 255, 0.08);
    --admin-map-bg: rgba(0, 5, 20, 0.4);
}

/* ── Command Center Header ─────────────────────────────────────────────── */
.admin-command-center {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.admin-stat-card {
    position: relative;
    padding: 1.5rem;
    border-radius: 16px;
    background: var(--admin-card-bg);
    border: 1px solid var(--admin-card-border);
    backdrop-filter: blur(12px);
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1), box-shadow 0.3s, background 0.3s;
    box-shadow: var(--admin-card-shadow);
    overflow: hidden;
}

.admin-stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: 16px 16px 0 0;
}

.admin-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

[data-theme="dark"] .admin-stat-card:hover {
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.admin-stat-card .stat-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.admin-stat-card .stat-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.admin-stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    font-family: var(--font-heading);
}

.admin-stat-card .stat-trend {
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* Color variants */
.stat-blue::before { background: linear-gradient(90deg, #3b82f6, #60a5fa); }
.stat-blue .stat-icon { background: rgba(59,130,246,0.15); color: var(--adm-blue); }
.stat-blue .stat-value { color: var(--adm-blue); }

.stat-green::before { background: linear-gradient(90deg, #10b981, #34d399); }
.stat-green .stat-icon { background: rgba(16,185,129,0.15); color: var(--adm-green); }
.stat-green .stat-value { color: var(--adm-green); }

.stat-purple::before { background: linear-gradient(90deg, #8b5cf6, #a78bfa); }
.stat-purple .stat-icon { background: rgba(139,92,246,0.15); color: var(--adm-purple); }
.stat-purple .stat-value { color: var(--adm-purple); }

.stat-orange::before { background: linear-gradient(90deg, #f97316, #fb923c); }
.stat-orange .stat-icon { background: rgba(249,115,22,0.15); color: var(--adm-orange); }
.stat-orange .stat-value { color: var(--adm-orange); }

.stat-pink::before { background: linear-gradient(90deg, #ec4899, #f472b6); }
.stat-pink .stat-icon { background: rgba(236,72,153,0.15); color: var(--adm-pink); }
.stat-pink .stat-value { color: var(--adm-pink); }

.stat-cyan::before { background: linear-gradient(90deg, #06b6d4, #22d3ee); }
.stat-cyan .stat-icon { background: rgba(6,182,212,0.15); color: var(--adm-cyan); }
.stat-cyan .stat-value { color: var(--adm-cyan); }

/* Live pulse indicator */
.live-pulse {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #10b981;
    animation: pulse-glow 2s ease-in-out infinite;
    margin-right: 6px;
    vertical-align: middle;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.5); }
    50% { box-shadow: 0 0 0 8px rgba(16,185,129,0); }
}

/* ── Animated Counter ──────────────────────────────────────────────────── */
.counter-animate {
    transition: all 0.6s cubic-bezier(0.4,0,0.2,1);
}

/* ── Section Headers ───────────────────────────────────────────────────── */
.admin-section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--admin-section-border);
}

.admin-section-header h4 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-heading);
}

.admin-section-header .section-icon {
    width: 32px; height: 32px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
}

/* ── Charts Grid ───────────────────────────────────────────────────────── */
.admin-charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.admin-chart-card {
    padding: 1.5rem;
    border-radius: 16px;
    background: var(--admin-card-bg);
    border: 1px solid var(--admin-card-border);
    backdrop-filter: blur(8px);
    box-shadow: var(--admin-card-shadow);
}

.admin-chart-card h5 {
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0 0 1.25rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.admin-chart-card h5 i {
    opacity: 0.6;
}

/* ── Map Section ───────────────────────────────────────────────────────── */
.admin-map-section {
    padding: 1.5rem;
    border-radius: 16px;
    background: var(--admin-map-bg);
    border: 1px solid var(--admin-card-border);
    margin-bottom: 2rem;
    position: relative;
    box-shadow: var(--admin-card-shadow);
}

.map-metric-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    justify-content: center;
}

.map-metric-btn {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid var(--admin-input-border);
    background: var(--admin-input-bg);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s;
    font-family: var(--font-body);
}

.map-metric-btn:hover {
    background: rgba(16,185,129,0.12);
    border-color: rgba(16,185,129,0.4);
    color: var(--accent-blue);
}

.map-metric-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 2px 12px rgba(5,150,105,0.3);
}

/* ── Region Detail Panel ───────────────────────────────────────────────── */
.region-detail-panel {
    position: fixed;
    top: 0; right: -480px;
    width: 460px;
    max-width: 95vw;
    height: 100vh;
    background: var(--bg-surface);
    border-left: 1px solid var(--admin-card-border);
    z-index: 10000;
    overflow-y: auto;
    transition: right 0.4s cubic-bezier(0.4,0,0.2,1);
    box-shadow: -20px 0 60px rgba(0,0,0,0.5);
    padding: 2rem;
}

.region-detail-panel.open {
    right: 0;
}

.region-detail-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.region-detail-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.region-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.region-panel-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-blue);
    font-family: var(--font-heading);
}

.region-close-btn {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: var(--admin-header-bg);
    border: 1px solid var(--admin-card-border);
    color: var(--text-muted);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.25s;
}

.region-close-btn:hover {
    background: rgba(239,68,68,0.15);
    color: #ef4444;
    border-color: rgba(239,68,68,0.3);
}

.region-stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.region-stat-item {
    padding: 1rem;
    border-radius: 12px;
    background: var(--admin-list-item-bg);
    border: 1px solid var(--admin-card-border);
    text-align: center;
}

.region-stat-item .rs-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-bottom: 0.3rem;
}

.region-stat-item .rs-value {
    font-size: 1.5rem;
    font-weight: 800;
}

/* ── Analytics Cards Row ───────────────────────────────────────────────── */
.admin-analytics-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.admin-analytics-card {
    padding: 1.5rem;
    border-radius: 16px;
    background: var(--admin-card-bg);
    border: 1px solid var(--admin-card-border);
    box-shadow: var(--admin-card-shadow);
}

.admin-analytics-card h5 {
    font-size: 0.85rem;
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.analytics-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.analytics-list-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    border-radius: 10px;
    background: var(--admin-list-item-bg);
    transition: background 0.2s;
}

.analytics-list-item:hover {
    background: var(--admin-card-bg);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.analytics-list-item .ali-rank {
    width: 28px; height: 28px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    background: var(--admin-header-bg);
    color: var(--text-muted);
    flex-shrink: 0;
    border: 1px solid var(--admin-card-border);
}

.analytics-list-item .ali-info {
    flex: 1;
    min-width: 0;
}

.analytics-list-item .ali-info .ali-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.analytics-list-item .ali-info .ali-meta {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.analytics-list-item .ali-value {
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* ── Users Table Enhanced ──────────────────────────────────────────────── */
.admin-users-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.admin-users-table th {
    padding: 0.75rem 0.75rem;
    text-align: left;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 2px solid var(--admin-table-border);
    cursor: pointer;
    transition: color 0.2s;
    white-space: nowrap;
}

.admin-users-table th:hover {
    color: var(--accent-blue);
}

.admin-users-table tbody tr {
    border-bottom: 1px solid var(--admin-table-border);
    cursor: pointer;
    transition: background 0.2s;
}

.admin-users-table tbody tr:hover {
    background: rgba(16, 185, 129, 0.04);
}

.admin-users-table td {
    padding: 0.7rem 0.75rem;
    white-space: nowrap;
}

.user-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
}

.user-status-badge.active {
    background: rgba(16,185,129,0.15);
    color: var(--adm-green);
}

.user-status-badge.inactive {
    background: rgba(107,114,128,0.15);
    color: var(--text-secondary);
}

/* ── User Detail Modal Enhanced ────────────────────────────────────────── */
.user-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.user-detail-stat {
    padding: 1rem;
    border-radius: 12px;
    background: var(--admin-list-item-bg);
    border: 1px solid var(--admin-card-border);
    text-align: center;
}

.user-detail-stat .uds-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-bottom: 0.3rem;
}

.user-detail-stat .uds-value {
    font-size: 1.4rem;
    font-weight: 800;
    line-height: 1.2;
}

.user-detail-section {
    padding: 1.5rem;
    border-radius: 14px;
    background: var(--admin-list-item-bg);
    margin-bottom: 1.5rem;
    border: 1px solid var(--admin-card-border);
}

.user-detail-section h5 {
    font-size: 0.82rem;
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Timeline */
.activity-timeline {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    border-radius: 8px;
    background: var(--admin-header-bg);
    font-size: 0.82rem;
    border-left: 3px solid transparent;
}

.timeline-item.type-session_start { border-left-color: #10b981; }
.timeline-item.type-session_end { border-left-color: #6b7280; }
.timeline-item.type-page_visit { border-left-color: #3b82f6; }
.timeline-item.type-quiz { border-left-color: #8b5cf6; }
.timeline-item.type-book_rated { border-left-color: #f59e0b; }

.timeline-time {
    font-size: 0.72rem;
    color: var(--text-muted);
    white-space: nowrap;
    min-width: 85px;
}

.timeline-content {
    flex: 1;
}

/* Page visits bar */
.page-visit-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.page-visit-bar .pvb-name {
    width: 120px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 0;
}

.page-visit-bar .pvb-bar-container {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: var(--admin-header-bg);
    overflow: hidden;
}

.page-visit-bar .pvb-bar {
    height: 100%;
    border-radius: 4px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
    transition: width 0.8s cubic-bezier(0.4,0,0.2,1);
}

.page-visit-bar .pvb-count {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    min-width: 40px;
    text-align: right;
}

/* Engagement gauge */
.engagement-gauge {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-radius: 10px;
    background: var(--admin-list-item-bg);
    margin-bottom: 0.5rem;
    border: 1px solid var(--admin-card-border);
}

.gauge-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 130px;
}

.gauge-bar-container {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--admin-header-bg);
    overflow: hidden;
}

.gauge-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 1s cubic-bezier(0.4,0,0.2,1);
}

.gauge-value {
    font-size: 0.82rem;
    font-weight: 800;
    min-width: 45px;
    text-align: right;
}

/* ── Search Bar Enhanced ───────────────────────────────────────────────── */
.admin-search-wrapper {
    position: relative;
    max-width: 500px;
    margin-bottom: 1.5rem;
}

.admin-search-wrapper i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
}

.admin-search-input {
    width: 100%;
    padding: 0.85rem 1rem 0.85rem 44px;
    border: 1px solid var(--admin-input-border);
    border-radius: 14px;
    background: var(--admin-input-bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: border-color 0.25s, box-shadow 0.25s;
}

.admin-search-input:focus {
    outline: none;
    border-color: rgba(5,150,105,0.55);
    box-shadow: 0 0 0 3px rgba(5,150,105,0.12);
}

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .admin-command-center {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    .admin-stat-card {
        padding: 1rem;
    }
    .admin-stat-card .stat-value {
        font-size: 1.5rem;
    }
    .admin-charts-grid {
        grid-template-columns: 1fr;
    }
    .admin-analytics-cards {
        grid-template-columns: 1fr;
    }
    .region-detail-panel {
        width: 100%;
        right: -100%;
    }
    .map-metric-selector {
        gap: 0.35rem;
    }
    .map-metric-btn {
        padding: 0.4rem 0.7rem;
        font-size: 0.7rem;
    }
    .user-detail-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .admin-command-center {
        grid-template-columns: 1fr;
    }
    .region-stat-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Flashcard Stats (Admin) ─────────────────────────────────────────── */
.admin-fc-stats-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding-top: 1rem;
}

.admin-fc-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    background: var(--admin-list-item-bg);
    border: 1px solid var(--admin-card-border);
    gap: 1.5rem;
    transition: all 0.2s ease;
}

.admin-fc-row:hover {
    transform: translateX(4px);
    background: var(--admin-card-bg);
    box-shadow: var(--admin-card-shadow);
}

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

.afc-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.afc-name i {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.afc-author {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.afc-metrics {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.afc-metric-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.afc-metric-item i {
    color: var(--text-muted);
}

.afc-rating {
    color: var(--adm-amber);
}

@media (max-width: 640px) {
    .admin-fc-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .afc-metrics {
        width: 100%;
        justify-content: space-between;
    }
}


/* ═══════════════════════════════════════════════════════════════════════════
   Admin v1.3 — readable in both themes, shared modal card, manage-user flow
   ═══════════════════════════════════════════════════════════════════════════ */

/* Accent tokens: dark shades on light surfaces, bright shades on dark ones.
   Every admin colour that carries text goes through these. */
:root {
    --adm-blue: #1d4ed8;
    --adm-green: #047857;
    --adm-amber: #b45309;
    --adm-purple: #6d28d9;
    --adm-orange: #c2410c;
    --adm-pink: #be185d;
    --adm-cyan: #0e7490;
    --adm-red: #b91c1c;
    --adm-label: #475569;
    --adm-switch-off: rgba(100, 116, 139, 0.45);
    --adm-focus: rgba(5, 150, 105, 0.25);
    --adm-modal-shadow: 0 30px 80px rgba(2, 6, 23, 0.28);
}

[data-theme="dark"] {
    --adm-blue: #60a5fa;
    --adm-green: #34d399;
    --adm-amber: #fbbf24;
    --adm-purple: #a78bfa;
    --adm-orange: #fb923c;
    --adm-pink: #f472b6;
    --adm-cyan: #22d3ee;
    --adm-red: #f87171;
    --adm-label: #cbd5e1;
    --adm-switch-off: rgba(148, 163, 184, 0.35);
    --adm-focus: rgba(52, 211, 153, 0.3);
    --adm-modal-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}

/* Layout classes set display, so the hidden attribute needs reinforcing */
#panel-admin [hidden],
.manage-modal [hidden] { display: none !important; }

/* ── Page header ─────────────────────────────────────────────────────── */
.admin-page-header {
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 0.75rem; margin-bottom: 2rem;
}
.admin-page-title {
    margin: 0; color: var(--accent-blue); font-family: var(--font-heading);
    font-size: 1.35rem; display: flex; align-items: center; gap: 0.5rem;
}
.admin-live-tag {
    display: inline-flex; align-items: center; gap: 0.3rem;
    font-size: 0.75rem; font-weight: 600; color: var(--text-secondary);
    padding: 0.35rem 0.75rem; border-radius: 999px;
    border: 1px solid var(--admin-card-border); background: var(--admin-list-item-bg);
}

/* ── Users toolbar ───────────────────────────────────────────────────── */
.admin-users-toolbar { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; margin-bottom: 0.75rem; }
.admin-users-toolbar .admin-search-wrapper { flex: 1 1 260px; margin-bottom: 0; max-width: none; }
.admin-search-input { padding-right: 44px; }
.admin-search-clear {
    position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
    width: 30px; height: 30px; border-radius: 8px; border: none; background: transparent;
    color: var(--text-secondary); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 1rem;
}
.admin-search-clear:hover { background: var(--admin-list-item-bg); color: var(--adm-red); }
.admin-btn {
    display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.65rem 1rem; border-radius: 12px;
    font-size: 0.82rem; font-weight: 700; font-family: var(--font-body); cursor: pointer; white-space: nowrap;
    border: 1px solid var(--admin-input-border); background: var(--admin-input-bg); color: var(--text-primary); transition: all 0.2s;
}
.admin-btn:hover { border-color: rgba(5, 150, 105, 0.45); color: var(--accent-blue); }
.admin-filter-row { display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1rem; }
.admin-filter-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.admin-chip {
    padding: 0.35rem 0.8rem; border-radius: 999px; border: 1px solid var(--admin-input-border);
    background: var(--admin-input-bg); color: var(--text-secondary); font-size: 0.75rem; font-weight: 700;
    font-family: var(--font-body); cursor: pointer; transition: all 0.2s;
}
.admin-chip:hover { border-color: rgba(5, 150, 105, 0.45); color: var(--accent-blue); }
.admin-chip.active { background: var(--gradient-primary); border-color: transparent; color: #fff; box-shadow: 0 2px 10px rgba(5, 150, 105, 0.3); }
.admin-user-count { font-size: 0.78rem; font-weight: 600; color: var(--text-secondary); white-space: nowrap; }

/* ── Users table ─────────────────────────────────────────────────────── */
.admin-table-wrap {
    max-height: 72vh; overflow: auto; border: 1px solid var(--admin-card-border);
    border-radius: 14px; background: var(--admin-card-bg);
}
.admin-users-table thead th {
    position: sticky; top: 0; z-index: 2; background: var(--bg-surface);
    box-shadow: inset 0 -2px 0 var(--admin-table-border); border-bottom: none;
}
.admin-users-table th.sortable { user-select: none; }
.admin-users-table th .sort-ind { display: inline-block; margin-left: 0.35rem; opacity: 0.45; font-size: 0.85em; }
.admin-users-table th.sorted-asc,
.admin-users-table th.sorted-desc { color: var(--accent-blue); }
.admin-users-table th.sorted-asc .sort-ind,
.admin-users-table th.sorted-desc .sort-ind { opacity: 1; }
.admin-users-table tbody tr:nth-child(even) { background: var(--admin-header-bg); }
.admin-users-table tbody tr:hover { background: rgba(16, 185, 129, 0.08); }
.admin-users-table td { vertical-align: middle; color: var(--text-primary); }
.admin-users-table td.col-muted { color: var(--text-secondary); }
.admin-users-table td.col-username { color: var(--accent-blue); }
.admin-users-table td.col-streak { color: var(--adm-orange); font-weight: 600; }
.admin-users-table td.col-coins { color: var(--adm-amber); font-weight: 600; }
.admin-users-table td .dim { color: var(--text-secondary); }
.admin-users-table td.col-name .adm-user-name { font-weight: 600; }
.admin-users-table tr.is-banned td { opacity: 0.72; }
.admin-users-table tr.is-banned td.col-name .adm-user-name { text-decoration: line-through; text-decoration-color: rgba(239, 68, 68, 0.6); }
.admin-users-table td.admin-empty { text-align: center; padding: 2.5rem 1rem; color: var(--text-secondary); font-weight: 600; white-space: normal; }
.role-badge {
    display: inline-flex; align-items: center; padding: 2px 9px; border-radius: 6px;
    font-size: 0.7rem; font-weight: 700; letter-spacing: 0.3px; text-transform: uppercase; border: 1px solid transparent;
}
.role-badge.role-admin { background: rgba(220, 38, 38, 0.10); color: var(--adm-red); border-color: rgba(220, 38, 38, 0.25); }
.role-badge.role-teacher { background: rgba(109, 40, 217, 0.10); color: var(--adm-purple); border-color: rgba(109, 40, 217, 0.25); }
.role-badge.role-student { background: rgba(5, 150, 105, 0.10); color: var(--adm-green); border-color: rgba(5, 150, 105, 0.25); }
.vip-chip {
    display: inline-block; margin-left: 6px; padding: 1px 7px; border-radius: 6px; vertical-align: middle;
    font-size: 0.62rem; font-weight: 800; letter-spacing: 0.5px; color: #fff; background: linear-gradient(135deg, #a855f7, #c084fc);
}
.user-status-badge.banned { background: rgba(220, 38, 38, 0.12); color: var(--adm-red); }
.user-status-badge .live-pulse { width: 6px; height: 6px; margin: 0; }
.admin-icon-btn {
    width: 34px; height: 34px; border-radius: 10px; border: 1px solid var(--admin-input-border);
    background: var(--admin-input-bg); color: var(--text-secondary); display: inline-flex; align-items: center;
    justify-content: center; font-size: 1rem; cursor: pointer; transition: all 0.2s;
}
.admin-icon-btn:hover { color: var(--accent-blue); border-color: rgba(5, 150, 105, 0.45); background: rgba(5, 150, 105, 0.08); }

/* ── Shared modal card (manage + user detail) ────────────────────────── */
.modal-overlay > .modal-card {
    position: relative;
    background: var(--bg-surface);
    border: 1px solid var(--admin-card-border);
    border-radius: 20px;
    padding: 0;
    color: var(--text-primary);
    box-shadow: var(--adm-modal-shadow);
    display: flex;
    flex-direction: column;
    max-height: min(90vh, 920px);
    overflow: hidden;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transform: translateY(14px) scale(0.985);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.modal-overlay.active > .modal-card { transform: none; }
.modal-overlay > .modal-card:hover {
    transform: none; background: var(--bg-surface);
    border-color: var(--admin-card-border); box-shadow: var(--adm-modal-shadow);
}
.modal-card > .modal-header {
    flex-shrink: 0; padding: 1.1rem 1.25rem 1.1rem 1.5rem; gap: 1rem;
    background: transparent; border-bottom: 1px solid var(--admin-section-border);
}
.modal-card > .modal-body { flex: 1 1 auto; min-height: 0; overflow-y: auto; }
.modal-card .close-modal-btn {
    flex-shrink: 0; background: var(--admin-list-item-bg);
    border: 1px solid var(--admin-input-border); color: var(--text-secondary);
}
.modal-card .close-modal-btn:hover { background: rgba(239, 68, 68, 0.12); color: var(--adm-red); border-color: rgba(239, 68, 68, 0.35); }

/* ── Manage-user modal ───────────────────────────────────────────────── */
.manage-identity { display: flex; align-items: center; gap: 0.85rem; min-width: 0; }
.manage-avatar {
    width: 44px; height: 44px; border-radius: 13px; flex-shrink: 0; display: flex; align-items: center;
    justify-content: center; font-weight: 800; font-size: 1.15rem; color: #fff; background: var(--gradient-primary);
}
.manage-identity-text { min-width: 0; }
.manage-identity-text h3 {
    margin: 0; font-size: 1.05rem; font-weight: 700; font-family: var(--font-heading); color: var(--text-primary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.manage-identity-sub { font-size: 0.75rem; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.manage-body { padding: 1.25rem 1.5rem 1rem; display: flex; flex-direction: column; gap: 1rem; }
.manage-section {
    padding: 1rem 1.1rem; border-radius: 14px; background: var(--admin-list-item-bg);
    border: 1px solid var(--admin-card-border); display: flex; flex-direction: column; gap: 0.85rem;
}
.manage-section-title {
    display: flex; align-items: center; gap: 0.45rem; font-size: 0.72rem; font-weight: 800;
    letter-spacing: 0.8px; text-transform: uppercase; color: var(--adm-label);
}
.manage-section-title i { font-size: 1rem; color: var(--accent-blue); }
.manage-field { display: flex; flex-direction: column; gap: 0.4rem; }
.manage-label { font-size: 0.82rem; font-weight: 600; color: var(--adm-label); }
.manage-input {
    width: 100%; padding: 0.6rem 0.8rem; border-radius: 10px; border: 1px solid var(--admin-input-border);
    background: var(--admin-input-bg); color: var(--text-primary); font-family: var(--font-body); font-size: 0.9rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.manage-input:focus { outline: none; border-color: var(--accent-blue); box-shadow: 0 0 0 3px var(--adm-focus); }
.manage-input::placeholder { color: var(--text-muted); }
select.manage-input { cursor: pointer; }
.manage-hint { font-size: 0.74rem; color: var(--text-secondary); line-height: 1.4; }
.manage-hint:empty { display: none; }
.manage-toggle-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; cursor: pointer; }
.manage-toggle-row.is-disabled { cursor: not-allowed; opacity: 0.55; }
.manage-toggle-text { display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
.manage-toggle-label { font-size: 0.9rem; font-weight: 600; color: var(--text-primary); }
.manage-toggle-hint { font-size: 0.74rem; color: var(--text-secondary); }
.manage-switch {
    appearance: none; -webkit-appearance: none; flex-shrink: 0; width: 44px; height: 24px; margin: 0; border: none;
    border-radius: 999px; background: var(--adm-switch-off); position: relative; cursor: pointer; transition: background 0.2s;
}
.manage-switch::after {
    content: ''; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%;
    background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35); transition: transform 0.2s;
}
.manage-switch:checked { background: var(--accent-blue); }
.manage-switch.danger:checked { background: #dc2626; }
.manage-switch:checked::after { transform: translateX(20px); }
.manage-switch:focus-visible { outline: 2px solid var(--accent-blue); outline-offset: 2px; }
.manage-switch:disabled { cursor: not-allowed; }
.manage-coins-preview { display: flex; align-items: center; gap: 0.75rem; }
.manage-coins-box {
    flex: 1; min-width: 0; padding: 0.6rem 0.8rem; border-radius: 10px; background: var(--admin-input-bg);
    border: 1px solid var(--admin-input-border); display: flex; flex-direction: column; gap: 0.1rem;
}
.manage-coins-caption { font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--adm-label); }
.manage-coins-box strong { font-size: 1.25rem; font-weight: 800; color: var(--text-primary); font-family: var(--font-heading); }
.manage-coins-box.after strong.up { color: var(--adm-green); }
.manage-coins-box.after strong.down { color: var(--adm-red); }
.manage-coins-arrow { color: var(--text-muted); font-size: 1.1rem; flex-shrink: 0; }
.manage-coin-input { display: flex; gap: 0.5rem; align-items: stretch; }
.manage-coin-input .manage-input { flex: 1; min-width: 0; text-align: center; font-weight: 700; }
.manage-step {
    padding: 0 0.9rem; border-radius: 10px; border: 1px solid var(--admin-input-border); background: var(--admin-input-bg);
    color: var(--text-primary); font-weight: 700; font-size: 0.85rem; font-family: var(--font-body); cursor: pointer; transition: all 0.2s;
}
.manage-step:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
.manage-summary {
    padding: 0.8rem 1rem; border-radius: 12px; border: 1px dashed var(--admin-input-border);
    font-size: 0.82rem; color: var(--text-secondary);
}
.manage-summary.dirty { border-style: solid; border-color: rgba(217, 119, 6, 0.45); background: rgba(245, 158, 11, 0.08); color: var(--text-primary); }
.manage-summary-title { font-size: 0.7rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.6px; color: var(--adm-amber); margin-bottom: 0.35rem; }
.manage-summary ul { margin: 0; padding-left: 1.1rem; display: flex; flex-direction: column; gap: 0.2rem; }
.manage-msg { min-height: 1.1rem; font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); }
.manage-msg.error { color: var(--adm-red); }
.manage-msg.success { color: var(--adm-green); }
.manage-footer {
    flex-shrink: 0; display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; flex-wrap: wrap;
    padding: 1rem 1.5rem; border-top: 1px solid var(--admin-section-border); background: var(--admin-header-bg);
}
.manage-footer-actions { display: flex; gap: 0.5rem; margin-left: auto; }
.manage-btn {
    display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.6rem 1.1rem; border-radius: 11px;
    font-size: 0.85rem; font-weight: 700; font-family: var(--font-body); cursor: pointer; border: 1px solid transparent;
    transition: all 0.2s; white-space: nowrap;
}
.manage-btn:disabled { opacity: 0.5; cursor: not-allowed; box-shadow: none; transform: none; }
.manage-btn.primary { background: var(--gradient-primary); color: #fff; box-shadow: 0 6px 18px rgba(5, 150, 105, 0.3); }
.manage-btn.primary:not(:disabled):hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(5, 150, 105, 0.4); }
.manage-btn.primary.busy { pointer-events: none; opacity: 0.75; }
.manage-btn.ghost { background: var(--admin-input-bg); border-color: var(--admin-input-border); color: var(--text-primary); }
.manage-btn.ghost:hover { border-color: var(--text-muted); }
.manage-btn.danger { background: #dc2626; color: #fff; }
.manage-btn.danger:not(:disabled):hover { background: #b91c1c; }
.manage-btn.danger-ghost { background: rgba(220, 38, 38, 0.08); border-color: rgba(220, 38, 38, 0.3); color: var(--adm-red); }
.manage-btn.danger-ghost:not(:disabled):hover { background: rgba(220, 38, 38, 0.15); }
.manage-confirm {
    position: absolute; inset: 0; z-index: 3; display: flex; align-items: center; justify-content: center;
    padding: 1.5rem; background: var(--bg-surface);
}
.manage-confirm-card { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 0.75rem; text-align: center; }
.manage-confirm-icon {
    width: 56px; height: 56px; margin: 0 auto; border-radius: 16px; display: flex; align-items: center; justify-content: center;
    font-size: 1.7rem; color: var(--adm-red); background: rgba(220, 38, 38, 0.12);
}
.manage-confirm-card h4 { margin: 0; font-size: 1.1rem; font-family: var(--font-heading); color: var(--text-primary); }
.manage-confirm-card p { margin: 0; font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }
.manage-confirm-type strong { color: var(--text-primary); }
.manage-confirm-actions { display: flex; justify-content: center; gap: 0.5rem; margin-top: 0.25rem; }
.manage-confirm .manage-msg:empty { display: none; }

@media (max-width: 640px) {
    #manageUserModal.modal-overlay,
    #userDetailModal.modal-overlay { align-items: flex-end; }
    .modal-overlay > .modal-card {
        width: 100% !important; max-width: 100% !important;
        border-radius: 22px 22px 0 0; max-height: 94vh; transform: translateY(24px);
    }
    .modal-overlay.active > .modal-card { transform: none; }
    .manage-body { padding: 1rem 1rem 0.75rem; }
    .manage-footer { padding: 0.85rem 1rem; }
    .manage-footer-actions { width: 100%; }
    .manage-footer-actions .manage-btn { flex: 1; justify-content: center; }
    .admin-filter-row { align-items: flex-start; }
    .admin-table-wrap { max-height: none; }
}