/* =============================================
 * Admin Panel — Professional Dashboard
 * Bootstrap 4 + Custom Design System
 * ============================================= */

:root {
    --sidebar-w: 240px;
    --sidebar-collapsed-w: 68px;
    --topbar-h: 60px;
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --success: #10b981;
    --info: #06b6d4;
    --warning: #f59e0b;
    --danger: #ef4444;
    --sidebar-bg: #0f172a;
    --sidebar-surface: #1e293b;
    --body-bg: #f1f5f9;
    --card-bg: #ffffff;
    --card-radius: 12px;
    --card-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.03);
    --card-shadow-hover: 0 4px 16px rgba(0,0,0,0.08);
    --border: #e2e8f0;
    --text: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

body {
    font-family: var(--font);
    background: var(--body-bg);
    margin: 0;
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ========== LAYOUT SHELL ========== */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ========== SIDEBAR ========== */
.admin-sidebar {
    width: var(--sidebar-w);
    background: var(--sidebar-bg);
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    box-shadow: 4px 0 24px rgba(0,0,0,0.12);
}

.sidebar-brand {
    height: var(--topbar-h);
    display: flex;
    align-items: center;
    padding: 0 20px;
    color: #fff;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.3px;
    white-space: nowrap;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
    background: linear-gradient(135deg, rgba(99,102,241,0.15), transparent);
}

.sidebar-brand i {
    margin-right: 12px;
    font-size: 22px;
    color: var(--primary-light);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px;
}

.sidebar-nav::-webkit-scrollbar { width: 3px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    margin-bottom: 2px;
    color: rgba(255,255,255,0.55);
    font-size: 13.5px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition);
    white-space: nowrap;
    position: relative;
}

.sidebar-nav .nav-link:hover {
    color: rgba(255,255,255,0.9);
    background: rgba(255,255,255,0.06);
}

.sidebar-nav .nav-link.active {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}

.sidebar-nav .nav-link i {
    width: 20px;
    text-align: center;
    margin-right: 12px;
    font-size: 17px;
    flex-shrink: 0;
}

.sidebar-nav .nav-link .badge {
    margin-left: auto;
    font-size: 10px;
    padding: 3px 7px;
    border-radius: 10px;
}

.sidebar-toggle {
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.3);
    cursor: pointer;
    border-top: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
    transition: all var(--transition);
    font-size: 16px;
}

.sidebar-toggle:hover { color: rgba(255,255,255,0.7); background: rgba(255,255,255,0.03); }

/* ========== MAIN AREA ========== */
.admin-main {
    flex: 1;
    margin-left: var(--sidebar-w);
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ========== TOPBAR ========== */
.admin-topbar {
    height: var(--topbar-h);
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 1030;
    backdrop-filter: blur(12px);
    background: rgba(255,255,255,0.92);
}

.topbar-left { display: flex; align-items: center; gap: 14px; }
.topbar-right { display: flex; align-items: center; gap: 18px; }
.topbar-title { font-size: 16px; font-weight: 700; color: var(--text); letter-spacing: -0.3px; }

.btn-hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px 10px;
    border-radius: 8px;
    transition: all var(--transition);
}
.btn-hamburger:hover { background: var(--body-bg); color: var(--text); }

.user-info { display: flex; align-items: center; gap: 10px; }
.user-info img { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border); }
.user-info .user-name { font-size: 13px; font-weight: 600; color: var(--text); }

.btn-logout {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}
.btn-logout:hover { color: var(--danger); border-color: var(--danger); background: #fef2f2; text-decoration: none; }

/* ========== CONTENT ========== */
.admin-content {
    flex: 1;
    padding: 28px;
}

/* ========== COLLAPSED ========== */
body.sidebar-collapsed .admin-sidebar { width: var(--sidebar-collapsed-w); }
body.sidebar-collapsed .sidebar-brand span { display: none; }
body.sidebar-collapsed .sidebar-brand { justify-content: center; padding: 0; }
body.sidebar-collapsed .sidebar-brand i { margin-right: 0; }
body.sidebar-collapsed .sidebar-nav { padding: 16px 8px; }
body.sidebar-collapsed .sidebar-nav .nav-link { justify-content: center; padding: 12px 0; }
body.sidebar-collapsed .sidebar-nav .nav-link span { display: none; }
body.sidebar-collapsed .sidebar-nav .nav-link i { margin-right: 0; font-size: 19px; }
body.sidebar-collapsed .sidebar-nav .nav-link .badge { display: none; }
body.sidebar-collapsed .admin-main { margin-left: var(--sidebar-collapsed-w); }

/* ========== STAT CARDS ========== */
.stat-card {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    padding: 24px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 80px; height: 80px;
    border-radius: 50%;
    opacity: 0.08;
    transform: translate(20px, -20px);
}

.stat-card.border-left-info::after { background: var(--info); }
.stat-card.border-left-success::after { background: var(--success); }
.stat-card.border-left-warning::after { background: var(--warning); }
.stat-card.border-left-danger::after { background: var(--danger); }

.stat-card:hover { transform: translateY(-4px); box-shadow: var(--card-shadow-hover); }

.stat-card .stat-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
    margin-bottom: 14px;
}

.stat-card.border-left-info .stat-icon { background: rgba(6,182,212,0.1); color: var(--info); }
.stat-card.border-left-success .stat-icon { background: rgba(16,185,129,0.1); color: var(--success); }
.stat-card.border-left-warning .stat-icon { background: rgba(245,158,11,0.1); color: var(--warning); }
.stat-card.border-left-danger .stat-icon { background: rgba(239,68,68,0.1); color: var(--danger); }

.stat-card .stat-num { font-size: 28px; font-weight: 800; color: var(--text); letter-spacing: -1px; }
.stat-card .stat-label { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }

/* ========== SECTION CARD ========== */
.section-card {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    padding: 24px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

.section-card .section-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-card .section-title i { color: var(--primary); font-size: 18px; }

/* ========== TABLES ========== */
.admin-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    table-layout: auto;
    font-size: 13px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.admin-table th,
.admin-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: middle;
    white-space: nowrap;
}

.admin-table th + th,
.admin-table td + td { border-left: 1px solid var(--border); }

.admin-table thead th {
    background: #f8fafc;
    font-weight: 700;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
    padding: 14px 14px;
    white-space: nowrap;
}

.admin-table tbody tr { transition: background var(--transition); }
.admin-table tbody tr:hover { background: #f8fafc; }
.admin-table tbody tr:last-child td { border-bottom: none; }

/* 内容列：单行截断 */
.admin-table .col-content {
    max-width: 400px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.table-scroll-wrap {
    overflow-x: auto;
    border-radius: 10px;
    -webkit-overflow-scrolling: touch;
}

.table-scroll-wrap::-webkit-scrollbar { height: 6px; }
.table-scroll-wrap::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

/* ========== TOGGLE SWITCH ========== */
.toggle-switch {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 52px;
    height: 26px;
    padding: 0 12px;
    border-radius: 13px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3px;
    cursor: pointer;
    border: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
}

.toggle-switch.toggle-on {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    box-shadow: 0 2px 8px rgba(16,185,129,0.3);
}

.toggle-switch.toggle-off {
    background: #e2e8f0;
    color: #64748b;
}

.toggle-switch:hover { transform: scale(1.05); }
.toggle-switch:active { transform: scale(0.95); }

/* ========== ACTION BUTTONS ========== */
.action-btns {
    display: flex;
    gap: 6px;
    justify-content: center;
    flex-wrap: nowrap;
}

.action-btns .btn-icon {
    width: 30px; height: 30px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 13px;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}

.action-btns .btn-icon:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.action-btns .btn-icon.btn-edit { background: linear-gradient(135deg, var(--info), #0891b2); color: #fff; }
.action-btns .btn-icon.btn-delete { background: linear-gradient(135deg, var(--danger), #dc2626); color: #fff; }

/* ========== TOOLBAR ========== */
.table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.table-toolbar .toolbar-left,
.table-toolbar .toolbar-right { display: flex; align-items: center; gap: 10px; }

/* ========== FILTER BAR ========== */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 10px;
    border: 1px solid var(--border);
}

.filter-bar label { font-size: 12px; font-weight: 600; color: var(--text-secondary); margin: 0; white-space: nowrap; text-transform: uppercase; letter-spacing: 0.3px; }
.filter-bar .form-control { width: auto; min-width: 140px; display: inline-block; border-radius: 8px; border-color: var(--border); font-size: 13px; }

/* ========== MEDIA GRID ========== */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.media-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: #f1f5f9;
    cursor: pointer;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    aspect-ratio: 1;
}

.media-item:hover { transform: translateY(-4px) scale(1.02); box-shadow: var(--card-shadow-hover); border-color: var(--primary-light); }
.media-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
.media-item:hover img { transform: scale(1.08); }

.media-item .media-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(15,23,42,0.85));
    padding: 30px 12px 12px;
    opacity: 0;
    transition: opacity 0.3s;
}

.media-item:hover .media-overlay { opacity: 1; }
.media-overlay .media-name { color: #fff; font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.media-overlay .media-meta { color: rgba(255,255,255,0.6); font-size: 11px; }

.media-item .media-del-btn {
    position: absolute;
    top: 8px; right: 8px;
    width: 30px; height: 30px;
    background: rgba(239,68,68,0.9);
    backdrop-filter: blur(4px);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    opacity: 0;
    transition: all 0.3s;
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 14px;
}

.media-item:hover .media-del-btn { opacity: 1; transform: scale(1.1); }

.media-video-item { background: #0f172a !important; }
.media-video-item .video-badge {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    width: 48px; height: 48px;
    border-radius: 50%;
    background: rgba(99,102,241,0.85);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 20px;
    pointer-events: none;
    box-shadow: 0 4px 16px rgba(99,102,241,0.4);
    transition: all 0.3s;
}

.media-item:hover .video-badge { transform: translate(-50%,-50%) scale(1.15); }

.media-filter-tabs { display: flex; gap: 6px; }
.media-filter-btn { border-radius: 8px !important; font-weight: 600 !important; font-size: 12px !important; }
.media-filter-btn.active { color: #fff !important; background: var(--primary) !important; border-color: var(--primary) !important; box-shadow: 0 2px 8px rgba(99,102,241,0.3); }

/* ========== SETTINGS ========== */
.settings-card {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    padding: 36px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
}

.image-upload-preview {
    display: inline-block;
    border: 2px dashed #cbd5e1;
    border-radius: 12px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
    background: #f8fafc;
}

.image-upload-preview:hover { border-color: var(--primary); background: #eef2ff; transform: scale(1.02); }
.image-upload-preview img { max-width: 120px; max-height: 120px; border-radius: 8px; display: block; margin: 0 auto; }
.image-upload-preview .upload-placeholder { width: 120px; height: 80px; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--text-muted); }
.image-upload-preview .upload-placeholder i { font-size: 28px; margin-bottom: 6px; }

/* ========== EDITOR (EasyMDE) ========== */
.EasyMDEContainer { width: 100%; }
.EasyMDEContainer .CodeMirror { border-radius: 8px; border-color: var(--border); font-size: 14px; line-height: 1.7; min-height: 200px; }
.EasyMDEContainer .CodeMirror-focused { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }
.EasyMDEContainer .editor-toolbar { border-radius: 8px 8px 0 0; border-color: var(--border); opacity: 1; background: #f8fafc; display: flex; flex-wrap: wrap; align-items: center; padding: 4px 8px; }
.EasyMDEContainer .editor-toolbar button { color: var(--text-secondary) !important; border-radius: 6px; width: 30px; height: 30px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.EasyMDEContainer .editor-toolbar button:hover { background: #eef2ff; color: var(--primary) !important; }
.EasyMDEContainer .editor-toolbar button.active { background: #eef2ff; color: var(--primary) !important; }
.EasyMDEContainer .editor-toolbar .separator { width: 1px; height: 20px; background: var(--border); margin: 0 4px; flex-shrink: 0; }
.EasyMDEContainer .editor-preview { background: #f8fafc; padding: 16px; font-size: 14px; line-height: 1.8; border-radius: 0 0 8px 8px; }
.EasyMDEContainer .editor-statusbar { display: none; }
.editor-form .EasyMDEContainer .CodeMirror { min-height: 220px; }

.upload-image-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.upload-image-item { position: relative; width: 90px; height: 90px; border-radius: 10px; overflow: hidden; border: 2px solid var(--border); transition: all var(--transition); }
.upload-image-item:hover { border-color: var(--primary); }
.upload-image-item img { width: 100%; height: 100%; object-fit: cover; }
.upload-image-item .remove-btn { position: absolute; top: 3px; right: 3px; width: 22px; height: 22px; background: rgba(239,68,68,0.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; color: #fff; font-size: 11px; border: none; opacity: 0; transition: opacity var(--transition); }
.upload-image-item:hover .remove-btn { opacity: 1; }

/* ========== GALLERY ========== */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding: 16px; max-height: 420px; overflow-y: auto; }
.gallery-pick-item { position: relative; aspect-ratio: 1; border-radius: 10px; overflow: hidden; cursor: pointer; border: 3px solid transparent; transition: all 0.2s; background: #f1f5f9; }
.gallery-pick-item:hover { border-color: var(--primary-light); transform: scale(1.03); }
.gallery-pick-item.selected { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(99,102,241,0.3); }
.gallery-pick-item img { width: 100%; height: 100%; object-fit: cover; }
.gallery-pick-item .gallery-check { position: absolute; top: 6px; right: 6px; width: 24px; height: 24px; background: var(--primary); border-radius: 50%; display: none; align-items: center; justify-content: center; color: #fff; font-size: 12px; box-shadow: 0 2px 6px rgba(99,102,241,0.4); }
.gallery-pick-item.selected .gallery-check { display: flex; }

/* ========== SKELETON ========== */
@keyframes skeletonPulse { 0%,100%{opacity:1} 50%{opacity:.35} }
.skeleton-loading { padding: 8px 0; }
.skeleton-row { display: flex; align-items: center; padding: 16px 14px; border-bottom: 1px solid #f1f5f9; gap: 14px; }
.skeleton-row:last-child { border-bottom: none; }
.skeleton-cell { height: 14px; border-radius: 4px; background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%); background-size: 200% 100%; animation: skeletonShimmer 1.5s infinite; }
@keyframes skeletonShimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }
.skeleton-cell.w-id { width: 35px; }
.skeleton-cell.w-short { width: 50px; }
.skeleton-cell.w-medium { width: 80px; }
.skeleton-cell.w-content { flex: 1; min-width: 60px; }
.skeleton-cell.w-btn { width: 48px; height: 26px; border-radius: 13px; }

.skeleton-media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; }
.skeleton-media-item { aspect-ratio: 1; border-radius: 12px; background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%); background-size: 200% 100%; animation: skeletonShimmer 1.5s infinite; }
.skeleton-media-item:nth-child(2){animation-delay:.1s} .skeleton-media-item:nth-child(3){animation-delay:.15s}
.skeleton-media-item:nth-child(4){animation-delay:.2s} .skeleton-media-item:nth-child(5){animation-delay:.25s}
.skeleton-media-item:nth-child(6){animation-delay:.3s} .skeleton-media-item:nth-child(7){animation-delay:.35s}
.skeleton-media-item:nth-child(8){animation-delay:.4s}

/* ========== TOAST ========== */
.admin-toast-container { position: fixed; top: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; pointer-events: none; }
.admin-toast { padding: 14px 22px; border-radius: 10px; color: #fff; font-size: 13px; font-weight: 600; box-shadow: 0 8px 24px rgba(0,0,0,0.15); animation: toastSlide 0.4s cubic-bezier(0.16, 1, 0.3, 1); pointer-events: auto; max-width: 380px; backdrop-filter: blur(8px); display: flex; align-items: center; gap: 10px; }
.admin-toast::before { font-family: 'bootstrap-icons'; font-size: 16px; }
.admin-toast.toast-success { background: linear-gradient(135deg, #10b981, #059669); }
.admin-toast.toast-success::before { content: '\F26B'; }
.admin-toast.toast-error { background: linear-gradient(135deg, #ef4444, #dc2626); }
.admin-toast.toast-error::before { content: '\F33A'; }
.admin-toast.toast-warning { background: linear-gradient(135deg, #f59e0b, #d97706); }
.admin-toast.toast-warning::before { content: '\F33B'; }
.admin-toast.toast-info { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.admin-toast.toast-info::before { content: '\F431'; }
@keyframes toastSlide { from { opacity:0; transform:translateX(40px) scale(0.95); } to { opacity:1; transform:translateX(0) scale(1); } }

/* ========== LOADING OVERLAY ========== */
.admin-loading-overlay { position: fixed; top:0; left:0; right:0; bottom:0; background: rgba(255,255,255,0.7); backdrop-filter: blur(4px); z-index: 9998; display: flex; align-items: center; justify-content: center; }
.admin-loading-overlay .spinner-border { width: 2.5rem; height: 2.5rem; color: var(--primary); border-width: 3px; }

/* ========== PAGINATION ========== */
.admin-pagination { display: flex; align-items: center; justify-content: center; gap: 4px; margin-top: 24px; flex-wrap: wrap; }
.admin-pagination .page-btn { min-width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: 8px; background: var(--card-bg); color: var(--text-secondary); font-size: 13px; font-weight: 600; cursor: pointer; text-decoration: none; transition: all var(--transition); padding: 0 10px; }
.admin-pagination .page-btn:hover { background: #eef2ff; border-color: var(--primary-light); color: var(--primary); transform: translateY(-1px); }
.admin-pagination .page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 2px 8px rgba(99,102,241,0.3); }
.admin-pagination .page-btn.disabled { opacity: 0.35; pointer-events: none; }
.admin-pagination .page-info { font-size: 12px; color: var(--text-muted); margin: 0 12px; font-weight: 500; }

/* ========== EMPTY STATE ========== */
.empty-state { text-align: center; padding: 56px 20px; color: var(--text-muted); }
.empty-state i { font-size: 48px; display: block; margin-bottom: 14px; opacity: 0.4; }
.empty-state p { font-size: 14px; margin: 0; font-weight: 500; }

/* ========== ABOUT ========== */
.about-card { background: var(--card-bg); border-radius: var(--card-radius); padding: 32px; box-shadow: var(--card-shadow); border: 1px solid var(--border); }
.about-heading { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }
.about-heading i { color: var(--primary); }
.about-actions { margin-top: 20px; display: flex; gap: 10px; flex-wrap: wrap; }

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .admin-sidebar { transform: translateX(-100%); width: var(--sidebar-w); }
    body:not(.sidebar-collapsed) .admin-sidebar { transform: translateX(0); box-shadow: 8px 0 32px rgba(0,0,0,0.3); }
    body.sidebar-collapsed .admin-sidebar { transform: translateX(-100%); }
    .admin-main { margin-left: 0 !important; }
    .btn-hamburger { display: flex; }
    .admin-content { padding: 16px; }
    .sidebar-overlay { display: none; position: fixed; top:0; left:0; right:0; bottom:0; background: rgba(15,23,42,0.5); backdrop-filter: blur(4px); z-index: 1035; }
    body:not(.sidebar-collapsed) .sidebar-overlay { display: block; }
    .table-toolbar { flex-direction: column; align-items: stretch; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .filter-bar .form-control { width: 100%; }
    .media-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 10px; }
    .gallery-grid { grid-template-columns: repeat(3, 1fr); }
    .settings-card { padding: 20px; }
    .stat-card { padding: 18px; }
    .stat-card .stat-num { font-size: 22px; }
    .section-card { padding: 16px; }
}

@media (max-width: 480px) {
    .media-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-grid { grid-template-columns: repeat(3, 1fr); gap: 6px; }
    .admin-content { padding: 12px; }
}

/* ========== BOOTSTRAP OVERRIDES ========== */
.btn-primary { background: var(--primary); border-color: var(--primary); font-weight: 600; border-radius: 8px; }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); box-shadow: 0 4px 12px rgba(99,102,241,0.3); }
.btn-primary:focus { box-shadow: 0 0 0 3px rgba(99,102,241,0.2); }
.btn-outline-secondary { border-radius: 8px; font-weight: 600; color: var(--text-secondary); border-color: var(--border); }
.btn-outline-secondary:hover { background: var(--body-bg); color: var(--text); border-color: var(--text-muted); }
.btn-warning { background: var(--warning); border-color: var(--warning); color: #fff; font-weight: 600; border-radius: 8px; }
.btn-outline-primary { color: var(--primary); border-color: var(--primary); border-radius: 8px; font-weight: 600; }
.btn-outline-primary:hover { background: var(--primary); color: #fff; }
.btn-outline-info { color: var(--info); border-color: var(--info); border-radius: 8px; font-weight: 600; }
.btn-outline-info:hover { background: var(--info); color: #fff; }
.btn-outline-warning { color: var(--warning); border-color: var(--warning); border-radius: 8px; font-weight: 600; }
.btn-outline-warning:hover { background: var(--warning); color: #fff; }
.btn-secondary { background: #64748b; border-color: #64748b; border-radius: 8px; font-weight: 600; }
.btn-sm { border-radius: 8px; padding: 6px 14px; font-size: 12px; }

.form-control { border-radius: 8px; border-color: var(--border); font-size: 13px; transition: all var(--transition); }
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }
.custom-switch .custom-control-label::before { border-radius: 12px; }
.custom-switch .custom-control-input:checked ~ .custom-control-label::before { background: var(--primary); border-color: var(--primary); }

.modal-content { border-radius: 16px; border: none; box-shadow: 0 20px 60px rgba(0,0,0,0.15); }
.modal-header { border-bottom: 1px solid var(--border); padding: 20px 24px; }
.modal-body { padding: 24px; }
.modal-footer { border-top: 1px solid var(--border); padding: 16px 24px; }
.modal-title { font-weight: 700; font-size: 16px; color: var(--text); }

.badge { font-weight: 600; border-radius: 6px; padding: 4px 8px; }
.badge-success { background: var(--success) !important; }
.badge-warning { background: var(--warning) !important; color: #fff !important; }
.badge-danger { background: var(--danger) !important; }

hr { border-color: var(--border); }