/* Bisai Admin — Obsidian Circuit */
:root {
    --a-bg: #06080c;
    --a-surface: #0e1117;
    --a-surface-2: #141a24;
    --a-surface-elevated: #1a2230;
    --a-border: rgba(255, 255, 255, 0.07);
    --a-border-strong: rgba(255, 255, 255, 0.12);
    --a-text: #eef1f6;
    --a-text-muted: #8b95a8;
    --a-accent: #ff4d2e;
    --a-accent-hover: #ff6b4f;
    --a-accent-glow: rgba(255, 77, 46, 0.35);
    --a-teal: #2ee4c6;
    --a-teal-soft: rgba(46, 228, 198, 0.12);
    --a-amber: #f5b942;
    --a-radius: 14px;
    --a-radius-sm: 10px;
    --a-sidebar-w: 268px;
    --a-topbar-h: 64px;
    --a-font-display: 'Bricolage Grotesque', 'Noto Sans SC', sans-serif;
    --a-font-body: 'Noto Sans SC', sans-serif;
    --a-font-mono: 'JetBrains Mono', monospace;
    --a-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body.admin-body {
    margin: 0;
    font-family: var(--a-font-body);
    font-size: 0.9375rem;
    background: var(--a-bg);
    color: var(--a-text);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Ambient mesh background */
body.admin-body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(ellipse 80% 50% at 100% 0%, rgba(255, 77, 46, 0.08), transparent 50%),
        radial-gradient(ellipse 60% 40% at 0% 100%, rgba(46, 228, 198, 0.06), transparent 45%),
        linear-gradient(180deg, var(--a-bg) 0%, #0a0d14 100%);
}

body.admin-body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
}

.admin-wrapper,
.admin-topbar,
.admin-sidebar { position: relative; z-index: 1; }

/* ── Topbar ── */
.admin-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--a-topbar-h);
    background: rgba(14, 17, 23, 0.82);
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border-bottom: 1px solid var(--a-border);
    z-index: 1030;
    display: flex;
    align-items: center;
    padding: 0 1.25rem;
    gap: 0.85rem;
}

.admin-topbar .btn-menu {
    width: 42px;
    height: 42px;
    border: 1px solid var(--a-border);
    background: var(--a-surface-2);
    border-radius: var(--a-radius-sm);
    color: var(--a-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: border-color 0.2s var(--a-ease), color 0.2s, box-shadow 0.2s;
}

.admin-topbar .btn-menu:hover {
    border-color: var(--a-accent);
    color: var(--a-accent);
    box-shadow: 0 0 20px var(--a-accent-glow);
}

.admin-topbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--a-font-display);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
    color: var(--a-text);
    text-decoration: none;
    white-space: nowrap;
}

.admin-topbar-logo {
    height: 28px;
    width: auto;
    display: block;
}

.admin-topbar-brand .mark {
    color: var(--a-accent);
}

.admin-topbar-spacer { flex: 1; }

.admin-user-chip {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.35rem 0.85rem 0.35rem 0.4rem;
    background: var(--a-surface-2);
    border: 1px solid var(--a-border);
    border-radius: 999px;
    font-size: 0.8125rem;
    color: var(--a-text-muted);
    max-width: 200px;
}

.admin-user-chip .avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--a-accent), #ff8a65);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--a-font-display);
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 0 16px var(--a-accent-glow);
}

.admin-user-chip .email {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.admin-topbar .btn-logout {
    border: 1px solid var(--a-border);
    background: transparent;
    color: var(--a-text-muted);
    border-radius: var(--a-radius-sm);
    padding: 0.4rem 0.85rem;
    font-size: 0.8125rem;
    transition: all 0.2s var(--a-ease);
}

.admin-topbar .btn-logout:hover {
    border-color: var(--a-accent);
    color: var(--a-accent);
    background: rgba(255, 77, 46, 0.08);
}

/* ── Sidebar ── */
.admin-sidebar {
    position: fixed;
    top: var(--a-topbar-h);
    left: 0;
    width: var(--a-sidebar-w);
    height: calc(100vh - var(--a-topbar-h));
    background: var(--a-surface);
    border-right: 1px solid var(--a-border);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 1020;
    padding: 0;
    transition: transform 0.3s var(--a-ease);
    display: flex;
    flex-direction: column;
}

.admin-sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--a-accent), transparent 60%, var(--a-teal));
    opacity: 0.9;
}

.admin-sidebar-brand {
    padding: 1.35rem 1.25rem 1rem 1.5rem;
    border-bottom: 1px solid var(--a-border);
}

.admin-sidebar-brand .logo-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.admin-logo-img {
    height: 32px;
    width: auto;
    display: block;
    flex-shrink: 0;
}

.admin-sidebar-brand .logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: linear-gradient(145deg, var(--a-accent), #c42d12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
    box-shadow: 0 8px 24px var(--a-accent-glow);
}

.admin-sidebar-brand .logo-text {
    font-family: var(--a-font-display);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.03em;
    line-height: 1.2;
    color: var(--a-text);
}

.admin-sidebar-brand .logo-text small {
    display: block;
    font-family: var(--a-font-body);
    font-weight: 400;
    font-size: 0.7rem;
    color: var(--a-text-muted);
    letter-spacing: 0.02em;
    margin-top: 2px;
}

.admin-sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem 1.5rem;
}

.admin-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    top: var(--a-topbar-h);
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    z-index: 1015;
    opacity: 0;
    transition: opacity 0.3s var(--a-ease);
}

.admin-sidebar-overlay.show {
    display: block;
    opacity: 1;
}

.admin-nav-section {
    font-family: var(--a-font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--a-text-muted);
    padding: 1rem 0.75rem 0.4rem;
    opacity: 0.85;
}

.admin-nav-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.62rem 0.85rem;
    margin: 2px 0;
    color: var(--a-text-muted);
    text-decoration: none;
    border-radius: var(--a-radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s var(--a-ease);
    border: 1px solid transparent;
    background: transparent;
    width: 100%;
    text-align: left;
    cursor: pointer;
}

.admin-nav-link i {
    font-size: 1.05rem;
    width: 1.35rem;
    opacity: 0.85;
}

.admin-nav-link:hover {
    color: var(--a-text);
    background: var(--a-surface-2);
    border-color: var(--a-border);
}

.admin-nav-link.active {
    color: var(--a-text);
    background: rgba(255, 77, 46, 0.1);
    border-color: rgba(255, 77, 46, 0.25);
    box-shadow: inset 3px 0 0 var(--a-accent);
}

.admin-nav-sub {
    margin: 0.15rem 0 0.5rem 0.5rem;
    padding-left: 0.5rem;
    border-left: 1px solid var(--a-border);
}

.admin-nav-sub .admin-nav-link {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
}

.admin-nav-toggle .chevron {
    margin-left: auto;
    transition: transform 0.25s var(--a-ease);
    font-size: 0.7rem;
    opacity: 0.6;
}

.admin-nav-toggle[aria-expanded="true"] .chevron {
    transform: rotate(90deg);
}

/* ── Main ── */
.admin-wrapper {
    padding-top: var(--a-topbar-h);
    min-height: 100vh;
}

.admin-main {
    margin-left: var(--a-sidebar-w);
    padding: 1.5rem 1.75rem 2.5rem;
    min-height: calc(100vh - var(--a-topbar-h));
    animation: adminFadeUp 0.5s var(--a-ease) both;
}

@keyframes adminFadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Page header */
.admin-page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.25rem;
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--a-border);
    position: relative;
}

.admin-page-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 72px;
    height: 2px;
    background: var(--a-accent);
    border-radius: 2px;
}

.admin-page-header h1 {
    font-family: var(--a-font-display);
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin: 0 0 0.35rem;
    color: var(--a-text);
}

.admin-page-header .subtitle {
    font-size: 0.875rem;
    color: var(--a-text-muted);
    margin: 0;
}

.admin-page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Cards */
.admin-card {
    background: var(--a-surface);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius);
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.admin-card-header {
    padding: 1rem 1.35rem;
    border-bottom: 1px solid var(--a-border);
    font-family: var(--a-font-display);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--a-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.admin-card-header i { color: var(--a-accent); }

.admin-card-body { padding: 1.35rem; }
.admin-card-body.p-0 { padding: 0; }

/* Stats */
.admin-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.admin-stat-card {
    position: relative;
    background: var(--a-surface);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius);
    padding: 1.35rem 1.35rem 1.35rem 1.5rem;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    transition: transform 0.25s var(--a-ease), border-color 0.25s, box-shadow 0.25s;
    animation: adminFadeUp 0.55s var(--a-ease) both;
}

.admin-stat-card:nth-child(1) { animation-delay: 0.05s; }
.admin-stat-card:nth-child(2) { animation-delay: 0.12s; }
.admin-stat-card:nth-child(3) { animation-delay: 0.19s; }

.admin-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--a-accent), var(--a-teal));
    opacity: 0;
    transition: opacity 0.25s;
}

.admin-stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--a-border-strong);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    color: inherit;
}

.admin-stat-card:hover::before { opacity: 1; }

.admin-stat-card .inner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.admin-stat-value {
    font-family: var(--a-font-display);
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1;
    color: var(--a-text);
}

.admin-stat-label {
    font-size: 0.8125rem;
    color: var(--a-text-muted);
    margin-top: 0.35rem;
}

.admin-stat-export {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.9rem;
    padding: 0.28rem 0.7rem;
    border: 1px solid var(--a-border-strong);
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--a-text-muted);
    text-decoration: none;
    background: rgba(255, 255, 255, 0.03);
    transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.admin-stat-export:hover {
    color: var(--a-text);
    border-color: var(--a-accent);
    background: rgba(255, 77, 46, 0.12);
    text-decoration: none;
}

.admin-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}

.admin-stat-icon.accent {
    background: rgba(255, 77, 46, 0.12);
    color: var(--a-accent);
}

.admin-stat-icon.teal {
    background: var(--a-teal-soft);
    color: var(--a-teal);
}

.admin-stat-icon.amber {
    background: rgba(245, 185, 66, 0.12);
    color: var(--a-amber);
}

/* Quick actions */
.admin-quick-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.75rem;
}

.admin-quick-btn {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.85rem 1rem;
    background: var(--a-surface-2);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius-sm);
    color: var(--a-text);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s var(--a-ease);
}

.admin-quick-btn:hover {
    border-color: var(--a-accent);
    color: var(--a-accent);
    background: rgba(255, 77, 46, 0.06);
    transform: translateX(4px);
}

.admin-quick-btn i {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Table */
.admin-table {
    margin: 0;
    font-size: 0.875rem;
    color: var(--a-text);
    --bs-table-bg: transparent;
    --bs-table-color: var(--a-text);
    --bs-table-hover-bg: rgba(255, 255, 255, 0.03);
    --bs-table-striped-bg: rgba(255, 255, 255, 0.02);
}

.admin-table thead th {
    background: var(--a-surface-2);
    border-bottom: 1px solid var(--a-border);
    font-family: var(--a-font-mono);
    font-weight: 500;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--a-text-muted);
    padding: 0.85rem 1.15rem;
    white-space: nowrap;
}

.admin-table tbody td {
    padding: 0.9rem 1.15rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--a-border);
}

.admin-table tbody tr:last-child td { border-bottom: none; }

.admin-table tbody tr {
    transition: background 0.15s;
}

.admin-table code {
    font-family: var(--a-font-mono);
    font-size: 0.8rem;
    background: var(--a-surface-2);
    color: var(--a-teal);
    padding: 0.2em 0.45em;
    border-radius: 6px;
    border: 1px solid var(--a-border);
}

.admin-table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

/* Forms */
.admin-form .form-label {
    font-weight: 500;
    font-size: 0.8125rem;
    color: var(--a-text-muted);
    margin-bottom: 0.4rem;
}

.admin-form .form-control,
.admin-form .form-select {
    background: var(--a-surface-2);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius-sm);
    color: var(--a-text);
    padding: 0.6rem 0.85rem;
}

.admin-form .form-control::placeholder {
    color: var(--a-text-muted);
    opacity: 0.6;
}

.admin-form .form-control:focus {
    background: var(--a-surface-elevated);
    border-color: var(--a-accent);
    color: var(--a-text);
    box-shadow: 0 0 0 3px var(--a-accent-glow);
}

.admin-form .form-text {
    color: var(--a-text-muted);
    font-size: 0.75rem;
}

.admin-form .input-group-text {
    background: var(--a-surface-2);
    border-color: var(--a-border);
    color: var(--a-text-muted);
}

.admin-checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.6rem;
}

.admin-checkbox-item {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius-sm);
    background: var(--a-surface-2);
    cursor: pointer;
    transition: all 0.2s var(--a-ease);
}

.admin-checkbox-item:hover {
    border-color: var(--a-border-strong);
}

.admin-checkbox-item:has(input:checked) {
    border-color: rgba(255, 77, 46, 0.4);
    background: rgba(255, 77, 46, 0.06);
    box-shadow: inset 0 0 0 1px rgba(255, 77, 46, 0.15);
}

.admin-checkbox-item input {
    margin-top: 0.2rem;
    accent-color: var(--a-accent);
}

.admin-checkbox-item code {
    font-family: var(--a-font-mono);
    font-size: 0.75rem;
    color: var(--a-teal);
}

/* Buttons */
.btn-admin-primary {
    background: var(--a-accent);
    border: none;
    color: #fff;
    font-weight: 600;
    border-radius: var(--a-radius-sm);
    padding: 0.5rem 1.1rem;
    font-size: 0.875rem;
    transition: all 0.2s var(--a-ease);
    box-shadow: 0 4px 16px var(--a-accent-glow);
}

.btn-admin-primary:hover {
    background: var(--a-accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 24px var(--a-accent-glow);
}

.btn-outline-admin {
    border: 1px solid var(--a-border-strong);
    background: transparent;
    color: var(--a-text-muted);
    border-radius: var(--a-radius-sm);
    padding: 0.45rem 0.9rem;
    font-size: 0.8125rem;
    transition: all 0.2s var(--a-ease);
}

.btn-outline-admin:hover {
    border-color: var(--a-text-muted);
    color: var(--a-text);
    background: var(--a-surface-2);
}

.btn-outline-accent {
    border: 1px solid rgba(255, 77, 46, 0.35);
    background: transparent;
    color: var(--a-accent);
    border-radius: var(--a-radius-sm);
    font-size: 0.8125rem;
    transition: all 0.2s var(--a-ease);
}

.btn-outline-accent:hover {
    background: rgba(255, 77, 46, 0.1);
    color: var(--a-accent-hover);
    border-color: var(--a-accent);
}

.admin-table .btn-sm {
    font-size: 0.75rem;
    padding: 0.35rem 0.65rem;
    border-radius: 8px;
}

.admin-table .btn-outline-admin,
.admin-table .btn-outline-secondary {
    border-color: var(--a-border-strong);
    color: var(--a-text-muted);
    background: transparent;
}

.admin-table .btn-outline-admin:hover,
.admin-table .btn-outline-secondary:hover {
    background: var(--a-surface-elevated);
    color: var(--a-text);
    border-color: var(--a-border-strong);
}

.admin-table .btn-outline-accent,
.admin-table .btn-outline-primary {
    border-color: rgba(46, 228, 198, 0.35);
    color: var(--a-teal);
    background: transparent;
}

.admin-table .btn-outline-accent:hover,
.admin-table .btn-outline-primary:hover {
    background: var(--a-teal-soft);
    color: var(--a-teal);
}

.admin-table .btn-outline-danger {
    border-color: rgba(255, 77, 46, 0.3);
    color: #ff7a62;
    background: transparent;
}

.admin-table .btn-outline-danger:hover {
    background: rgba(255, 77, 46, 0.12);
    color: var(--a-accent);
}

/* Badge */
.badge-admin {
    font-family: var(--a-font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0.35em 0.6em;
    border-radius: 6px;
    background: var(--a-teal-soft) !important;
    color: var(--a-teal) !important;
    border: 1px solid rgba(46, 228, 198, 0.2);
}

/* Empty */
.admin-empty {
    text-align: center;
    padding: 3.5rem 1.5rem;
    color: var(--a-text-muted);
}

.admin-empty i {
    font-size: 2.75rem;
    opacity: 0.25;
    display: block;
    margin-bottom: 1rem;
    color: var(--a-accent);
}

/* Alerts */
.admin-alert {
    border-radius: var(--a-radius-sm);
    border: 1px solid var(--a-border);
    font-size: 0.875rem;
    animation: adminFadeUp 0.4s var(--a-ease);
}

.admin-alert.alert-success {
    background: rgba(46, 228, 198, 0.08);
    border-color: rgba(46, 228, 198, 0.25);
    color: var(--a-teal);
}

.admin-alert.alert-danger {
    background: rgba(255, 77, 46, 0.08);
    border-color: rgba(255, 77, 46, 0.25);
    color: #ff8a72;
}

.admin-alert .btn-close {
    filter: invert(1) opacity(0.5);
}

/* Pagination */
.admin-pagination {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--a-border);
}

.admin-pagination .page-link {
    background: var(--a-surface-2);
    border-color: var(--a-border);
    color: var(--a-text-muted);
    border-radius: 8px !important;
    margin: 0 2px;
    font-size: 0.8125rem;
}

.admin-pagination .page-item.active .page-link {
    background: var(--a-accent);
    border-color: var(--a-accent);
    color: #fff;
}

.admin-pagination .page-link:hover {
    background: var(--a-surface-elevated);
    color: var(--a-text);
}

/* Login */
body.admin-login-body {
    min-height: 100vh;
    margin: 0;
    font-family: var(--a-font-body);
    background: var(--a-bg);
    color: var(--a-text);
}

body.admin-login-body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 60% at 20% 20%, rgba(255, 77, 46, 0.15), transparent 50%),
        radial-gradient(ellipse 50% 50% at 80% 80%, rgba(46, 228, 198, 0.1), transparent 45%),
        var(--a-bg);
    z-index: 0;
}

.admin-login-shell {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.admin-login-hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 3rem 4rem;
    position: relative;
    overflow: hidden;
}

.admin-login-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--a-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--a-border) 1px, transparent 1px);
    background-size: 48px 48px;
    opacity: 0.4;
    mask-image: linear-gradient(135deg, black 20%, transparent 70%);
}

.admin-login-hero .hero-content {
    position: relative;
    max-width: 420px;
}

.admin-login-logo {
    height: 44px;
    width: auto;
    display: block;
    margin-bottom: 1.5rem;
}

.admin-login-hero .eyebrow {
    font-family: var(--a-font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--a-accent);
    margin-bottom: 1rem;
}

.admin-login-hero h1 {
    font-family: var(--a-font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.15;
    margin: 0 0 1rem;
}

.admin-login-hero p {
    color: var(--a-text-muted);
    font-size: 1rem;
    line-height: 1.65;
    margin: 0;
}

.admin-login-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: rgba(14, 17, 23, 0.6);
    border-left: 1px solid var(--a-border);
    backdrop-filter: blur(20px);
}

.admin-login-card {
    width: 100%;
    max-width: 400px;
    animation: adminFadeUp 0.6s var(--a-ease) both;
}

.admin-login-card .card-head {
    margin-bottom: 1.75rem;
}

.admin-login-card .card-head h2 {
    font-family: var(--a-font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin: 0 0 0.35rem;
}

.admin-login-card .card-head p {
    color: var(--a-text-muted);
    font-size: 0.875rem;
    margin: 0;
}

.admin-login-card .form-check-label {
    color: var(--a-text-muted);
    font-size: 0.875rem;
}

.admin-login-card .form-check-input {
    background-color: var(--a-surface-2);
    border-color: var(--a-border-strong);
}

.admin-login-card .form-check-input:checked {
    background-color: var(--a-accent);
    border-color: var(--a-accent);
}

.admin-login-back {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 1.5rem;
    color: var(--a-text-muted);
    font-size: 0.8125rem;
    text-decoration: none;
    transition: color 0.2s;
}

.admin-login-back:hover { color: var(--a-accent); }

/* Mobile */
@media (max-width: 991.98px) {
    .admin-sidebar {
        transform: translateX(-100%);
        box-shadow: 8px 0 40px rgba(0, 0, 0, 0.5);
    }

    .admin-sidebar.open { transform: translateX(0); }

    .admin-main {
        margin-left: 0;
        padding: 1.15rem;
    }

    .admin-topbar .btn-menu { display: inline-flex; }

    .admin-page-header h1 { font-size: 1.35rem; }

    .admin-login-shell {
        grid-template-columns: 1fr;
    }

    .admin-login-hero {
        display: none;
    }

    .admin-login-panel {
        border-left: none;
        min-height: 100vh;
    }

    .admin-table thead { display: none; }

    .admin-table tbody tr {
        display: block;
        padding: 1rem 1.15rem;
        border-bottom: 1px solid var(--a-border);
    }

    .admin-table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.4rem 0;
        border: none;
        gap: 1rem;
    }

    .admin-table tbody td::before {
        content: attr(data-label);
        font-family: var(--a-font-mono);
        font-size: 0.65rem;
        text-transform: uppercase;
        letter-spacing: 0.06em;
        color: var(--a-text-muted);
        flex-shrink: 0;
    }

    .admin-table tbody td.admin-td-actions {
        display: block;
        padding-top: 0.85rem;
        margin-top: 0.5rem;
        border-top: 1px dashed var(--a-border);
    }

    .admin-table tbody td.admin-td-actions::before { display: none; }

    .admin-user-chip .email { display: none; }
}

@media (min-width: 992px) {
    .admin-topbar .btn-menu { display: none; }
}

/* Competition switcher (topbar) */
.admin-competition-switcher { margin-right: 0.25rem; }

.btn-competition-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    max-width: 220px;
    padding: 0.4rem 0.75rem;
    background: var(--a-surface-2);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius-sm);
    color: var(--a-text);
    font-size: 0.8125rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s var(--a-ease);
    cursor: pointer;
}

.btn-competition-switch:hover,
.btn-competition-switch.show {
    border-color: var(--a-accent);
    color: var(--a-text);
    background: rgba(255, 77, 46, 0.08);
}

.btn-competition-switch.empty {
    color: var(--a-accent);
}

.btn-competition-switch .switcher-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-competition-switch i {
    color: var(--a-accent);
    flex-shrink: 0;
}

.admin-competition-menu {
    background: var(--a-surface-elevated);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius-sm);
    padding: 0.35rem;
    min-width: 260px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.admin-competition-menu .dropdown-item {
    border-radius: 8px;
    color: var(--a-text-muted);
    padding: 0.55rem 0.75rem;
    width: 100%;
    text-align: left;
    border: none;
    background: transparent;
}

.admin-competition-menu .dropdown-item:hover,
.admin-competition-menu .dropdown-item.active {
    background: rgba(255, 77, 46, 0.1);
    color: var(--a-text);
}

.admin-competition-menu .item-name {
    display: block;
    font-size: 0.875rem;
}

.admin-competition-menu .item-loc {
    display: block;
    color: var(--a-text-muted);
    margin-top: 2px;
}

.admin-competition-menu .dropdown-divider {
    border-color: var(--a-border);
}

#distpicker .form-select {
    background: var(--a-surface-2);
    border-color: var(--a-border);
    color: var(--a-text);
}

.admin-main .text-muted { color: var(--a-text-muted) !important; }

.admin-main a:not(.btn):not(.admin-nav-link):not(.admin-stat-card):not(.admin-stat-export):not(.admin-quick-btn) {
    color: var(--a-teal);
}

.admin-form-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--a-border);
}

/* Registration review */
.admin-filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    padding: 0.35rem;
    background: var(--a-surface-2);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius-sm);
}

.admin-filter-tabs .tab {
    padding: 0.45rem 0.85rem;
    border-radius: 8px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--a-text-muted);
    text-decoration: none;
    transition: all 0.2s var(--a-ease);
    border: 1px solid transparent;
    white-space: nowrap;
}

.admin-filter-tabs .tab:hover {
    color: var(--a-text);
    background: var(--a-surface-elevated);
}

.admin-filter-tabs .tab.active {
    color: var(--a-text);
    background: var(--a-surface);
    border-color: var(--a-border-strong);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.admin-status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.65rem;
    font-family: var(--a-font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    border-radius: 6px;
    border: 1px solid transparent;
    letter-spacing: 0.02em;
}

.admin-status-badge.is-draft {
    background: rgba(139, 149, 168, 0.12);
    color: var(--a-text-muted);
    border-color: rgba(139, 149, 168, 0.2);
}

.admin-status-badge.is-registered {
    background: rgba(245, 185, 66, 0.12);
    color: var(--a-amber);
    border-color: rgba(245, 185, 66, 0.25);
}

.admin-status-badge.is-submitted {
    background: rgba(245, 185, 66, 0.12);
    color: var(--a-amber);
    border-color: rgba(245, 185, 66, 0.25);
}

.admin-status-badge.is-approved {
    background: var(--a-teal-soft);
    color: var(--a-teal);
    border-color: rgba(46, 228, 198, 0.25);
}

.admin-status-badge.is-rejected {
    background: rgba(255, 77, 46, 0.12);
    color: #ff8a72;
    border-color: rgba(255, 77, 46, 0.25);
}

.admin-chart-wrap {
    position: relative;
    height: 280px;
    width: 100%;
}

.admin-chart-wrap--tall {
    height: 320px;
}

.admin-section-title h2 {
    font-family: var(--a-font-display);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 0.25rem;
}

.admin-section-title p {
    margin: 0;
    font-size: 0.8125rem;
    color: var(--a-text-muted);
}

.admin-kv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.25rem;
}

.admin-kv-item .label {
    font-size: 0.75rem;
    color: var(--a-text-muted);
    margin-bottom: 0.25rem;
}

.admin-kv-item .value {
    font-weight: 600;
    color: var(--a-text);
    word-break: break-word;
}

.admin-prose-box {
    padding: 1rem 1.15rem;
    background: var(--a-surface-2);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius-sm);
    color: var(--a-text);
    font-size: 0.875rem;
    line-height: 1.65;
}

.admin-attachment-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.admin-attachment-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--a-surface-2);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius-sm);
}

.admin-attachment-list a {
    color: var(--a-teal);
    text-decoration: none;
    font-size: 0.875rem;
    word-break: break-all;
}

.admin-attachment-list a:hover {
    text-decoration: underline;
}

.admin-attachment-list .meta {
    flex-shrink: 0;
    font-family: var(--a-font-mono);
    font-size: 0.7rem;
    color: var(--a-text-muted);
}

.admin-review-card .admin-card-body textarea.form-control {
    background: var(--a-surface-2);
    border: 1px solid var(--a-border);
    border-radius: var(--a-radius-sm);
    color: var(--a-text);
    font-size: 0.875rem;
}

.admin-review-card .admin-card-body textarea.form-control:focus {
    background: var(--a-surface-elevated);
    border-color: var(--a-accent);
    color: var(--a-text);
    box-shadow: 0 0 0 3px var(--a-accent-glow);
}

.admin-review-meta {
    display: grid;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--a-border);
}

.btn-admin-success {
    background: var(--a-teal);
    border: none;
    color: var(--a-bg);
    font-weight: 600;
    border-radius: var(--a-radius-sm);
    padding: 0.5rem 1.1rem;
    font-size: 0.875rem;
    transition: all 0.2s var(--a-ease);
    box-shadow: 0 4px 16px rgba(46, 228, 198, 0.25);
}

.btn-admin-success:hover {
    background: #3af0d4;
    color: var(--a-bg);
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(46, 228, 198, 0.35);
}

.admin-review-card .btn-outline-danger {
    border-color: rgba(255, 77, 46, 0.35);
    color: #ff8a72;
    background: transparent;
    border-radius: var(--a-radius-sm);
}

.admin-review-card .btn-outline-danger:hover {
    background: rgba(255, 77, 46, 0.12);
    color: var(--a-accent);
    border-color: var(--a-accent);
}

/* Drag-reorder list */
.admin-drag-handle {
    cursor: grab;
    color: var(--a-text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    padding: 0.25rem;
    user-select: none;
}
.admin-drag-handle:active { cursor: grabbing; }
.admin-sortable-ghost {
    opacity: 0.45;
    background: var(--a-surface-2) !important;
}
.admin-sortable-chosen {
    background: rgba(255, 77, 46, 0.06);
}
.admin-sortable-drag {
    opacity: 1;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}
.admin-sortable-hint {
    margin: 0 0 0.75rem;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}