:root {
    --admin-bg: #0d0f12;
    --admin-bg-2: #12151d;
    --admin-card: #161a22;
    --admin-card-hover: #1b202b;
    --admin-border: #2a3140;
    --admin-text: #e8eaed;
    --admin-muted: #8b95a5;
    --admin-accent: #ff6b00;
    --admin-accent-2: #ff8533;
    --admin-accent-glow: rgba(255, 107, 0, 0.22);
    --admin-danger: #ff5c5c;
    --admin-success: #3ecf8e;
    --admin-topbar-h: 60px;
    --admin-sidebar-w: 260px;
    --admin-radius: 14px;
    --admin-radius-sm: 10px;
}

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

html, body {
    min-height: 100%;
    margin: 0;
}

body.admin-app {
    font-family: Inter, "Segoe UI", sans-serif;
    background: var(--admin-bg);
    color: var(--admin-text);
    line-height: 1.55;
}

a { color: var(--admin-accent); text-decoration: none; }
a:hover { color: var(--admin-accent-2); }

/* ——— Shell ——— */
.admin-shell {
    min-height: 100vh;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(255, 107, 0, 0.12), transparent 60%),
        var(--admin-bg);
}

.admin-topbar {
    position: sticky;
    top: 0;
    z-index: 120;
    height: var(--admin-topbar-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    background: rgba(13, 15, 18, 0.92);
    border-bottom: 1px solid var(--admin-border);
    backdrop-filter: blur(12px);
}

.admin-topbar__left,
.admin-topbar__right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-burger {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--admin-border);
    border-radius: 10px;
    background: var(--admin-card);
    color: var(--admin-text);
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 0;
}

.admin-burger span {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--admin-text);
    text-decoration: none;
    font-family: "Exo 2", Inter, sans-serif;
}

.admin-brand:hover { color: #fff; }

.admin-brand__icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, #ff7a1a, #ff5500);
    box-shadow: 0 6px 18px var(--admin-accent-glow);
}

.admin-brand__text {
    font-size: 15px;
    font-weight: 600;
}

.admin-brand__text strong {
    color: var(--admin-accent);
    font-weight: 800;
}

.admin-topbar-link {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 107, 0, 0.35);
    background: rgba(255, 107, 0, 0.1);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
}

.admin-topbar-link--muted {
    border-color: var(--admin-border);
    background: transparent;
    color: var(--admin-muted);
}

.admin-topbar-link:hover {
    color: #fff;
    border-color: rgba(255, 107, 0, 0.55);
    background: rgba(255, 107, 0, 0.18);
}

.admin-layout {
    display: flex;
    min-height: calc(100vh - var(--admin-topbar-h));
}

.admin-overlay {
    display: none;
    position: fixed;
    inset: 0;
    top: var(--admin-topbar-h);
    background: rgba(0, 0, 0, 0.55);
    z-index: 90;
}

.admin-overlay.is-open { display: block; }

/* ——— Sidebar ——— */
.admin-sidebar {
    width: var(--admin-sidebar-w);
    flex-shrink: 0;
    background: var(--admin-bg-2);
    border-right: 1px solid var(--admin-border);
    padding: 16px 12px;
    position: sticky;
    top: var(--admin-topbar-h);
    height: calc(100vh - var(--admin-topbar-h));
    overflow-y: auto;
}

.admin-nav-group + .admin-nav-group {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.admin-nav-label {
    padding: 0 10px 8px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--admin-muted);
}

.admin-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 0 12px;
    margin-bottom: 4px;
    border-radius: 10px;
    color: #c8d0de;
    font-size: 14px;
    font-weight: 500;
    transition: background .18s ease, color .18s ease;
}

.admin-nav-link:hover {
    background: rgba(255, 255, 255, 0.04);
    color: #fff;
}

.admin-nav-link.active {
    background: linear-gradient(90deg, rgba(255, 107, 0, 0.22), rgba(255, 107, 0, 0.08));
    color: #fff;
    box-shadow: inset 2px 0 0 var(--admin-accent);
}

.admin-nav-ico {
    width: 22px;
    text-align: center;
    color: var(--admin-accent);
    font-size: 13px;
    flex-shrink: 0;
}

/* ——— Main ——— */
.admin-main {
    flex: 1;
    min-width: 0;
    padding: 22px 24px 40px;
}

.admin-page-head {
    margin-bottom: 18px;
}

.admin-breadcrumbs {
    color: var(--admin-muted);
    font-size: 12px;
    margin-bottom: 6px;
}

.admin-page-title {
    margin: 0;
    font-family: "Exo 2", Inter, sans-serif;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 0.01em;
}

/* ——— Alerts ——— */
.admin-alert,
.alert {
    padding: 12px 14px;
    border-radius: var(--admin-radius-sm);
    margin-bottom: 16px;
    border: 1px solid transparent;
    font-size: 14px;
}

.admin-alert--success,
.alert-success {
    background: rgba(62, 207, 142, 0.12);
    border-color: rgba(62, 207, 142, 0.35);
    color: #b8f5d6;
}

.admin-alert--danger,
.alert-danger {
    background: rgba(255, 92, 92, 0.12);
    border-color: rgba(255, 92, 92, 0.35);
    color: #ffcaca;
}

/* ——— Cards / legacy blocks ——— */
.admin-card,
.block {
    background: var(--admin-card);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    margin-bottom: 18px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.admin-card__head,
.block_head {
    padding: 14px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.02);
}

.admin-card__head h2,
.block_head {
    margin: 0;
    font-family: "Exo 2", Inter, sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}

.admin-card__body,
.block > form,
.block > p,
.block table {
    padding: 18px;
}

.admin-card__body--flush {
    padding: 0;
}

.admin-card__body--flush .table {
    margin-bottom: 0;
}

/* ——— Stats ——— */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.admin-stat-card,
.stat-block {
    background: var(--admin-card);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    padding: 18px 16px;
    text-align: left;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.admin-stat-card__value,
.stat-block h4 {
    margin: 0;
    font-family: "Exo 2", Inter, sans-serif;
    font-size: 30px;
    font-weight: 800;
    color: var(--admin-accent);
    line-height: 1.1;
}

.admin-stat-card__label,
.stat-block p {
    margin: 6px 0 0;
    color: var(--admin-muted);
    font-size: 13px;
}

/* ——— Forms ——— */
.admin-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 16px;
}

.admin-field label,
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 600;
    color: #d5dbe8;
}

.admin-field--wide {
    grid-column: 1 / -1;
}

.admin-input,
.form-control,
textarea.form-control {
    width: 100%;
    min-height: 42px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--admin-border);
    background: #0f1218;
    color: var(--admin-text);
    font: inherit;
    transition: border-color .18s ease, box-shadow .18s ease;
}

.admin-input:focus,
.form-control:focus {
    outline: none;
    border-color: rgba(255, 107, 0, 0.55);
    box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.15);
}

textarea.admin-input,
textarea.form-control {
    min-height: 110px;
    resize: vertical;
}

.admin-form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 6px;
}

.admin-btn,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 18px;
    border-radius: 10px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: transform .15s ease, background .18s ease, border-color .18s ease;
}

.admin-btn--primary,
.btn-primary {
    background: linear-gradient(180deg, #ff7a1a, #ff5500);
    color: #fff;
    border-color: rgba(255, 122, 26, 0.5);
    box-shadow: 0 8px 20px var(--admin-accent-glow);
}

.admin-btn--primary:hover,
.btn-primary:hover {
    color: #fff;
    transform: translateY(-1px);
    filter: brightness(1.05);
}

.admin-btn--ghost {
    background: transparent;
    border-color: var(--admin-border);
    color: var(--admin-text);
}

.admin-btn--ghost:hover {
    border-color: rgba(255, 107, 0, 0.45);
    color: #fff;
}

.btn-danger,
.btn-xs.btn-danger {
    background: rgba(255, 92, 92, 0.15);
    border-color: rgba(255, 92, 92, 0.35);
    color: #ffb4b4;
}

.btn-sm { min-height: 36px; padding: 0 12px; font-size: 13px; }
.btn-xs { min-height: 30px; padding: 0 10px; font-size: 12px; }
.btn-block { width: 100%; }

.form-group { margin-bottom: 14px; }

/* ——— Tables ——— */
.table,
table.table {
    width: 100%;
    border-collapse: collapse;
    color: var(--admin-text);
    background: transparent;
}

.table > thead > tr > th,
.table > tbody > tr > td,
.table > thead > tr > th,
.table-bordered > tbody > tr > td,
.table-bordered > thead > tr > th {
    padding: 12px 14px;
    border-color: rgba(255, 255, 255, 0.06) !important;
    vertical-align: middle;
}

.table > thead > tr > th {
    background: rgba(255, 255, 255, 0.03);
    color: var(--admin-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.table-striped > tbody > tr:nth-of-type(odd),
.table > tbody > tr:nth-child(odd) {
    background: rgba(255, 255, 255, 0.02);
}

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ——— Misc legacy ——— */
.bs-callout {
    margin: 18px;
    padding: 14px 16px;
    border-left: 3px solid var(--admin-accent);
    background: rgba(255, 107, 0, 0.08);
    border-radius: 0 10px 10px 0;
    color: #d5dbe8;
}

.tree { color: #c8d0de; }
.tree a { color: var(--admin-accent); }

.download-row {
    border: 1px solid var(--admin-border);
    background: #0f1218;
    padding: 12px;
    margin-bottom: 10px;
    border-radius: 10px;
}

.media-hint { color: var(--admin-muted); font-size: 13px; }
.media-cover-preview,
.media-shot-item {
    border-color: var(--admin-border);
    background: #0f1218;
}

/* ——— Auth ——— */
.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(ellipse 70% 50% at 50% -10%, rgba(255, 107, 0, 0.18), transparent 55%),
        var(--admin-bg);
}

.auth-box {
    width: min(100%, 420px);
    padding: 28px 24px;
    border-radius: 18px;
    border: 1px solid var(--admin-border);
    background: var(--admin-card);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.auth-box h1 {
    margin: 0 0 18px;
    font-family: "Exo 2", Inter, sans-serif;
    font-size: 24px;
    font-weight: 800;
    color: #fff;
}

.auth-box .form-group label {
    color: #d5dbe8;
}

.auth-error {
    margin-bottom: 14px;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(255, 92, 92, 0.12);
    border: 1px solid rgba(255, 92, 92, 0.35);
    color: #ffcaca;
    font-size: 14px;
}

/* ——— Materials by category ——— */
.admin-materials-layout {
    display: grid;
    grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.admin-materials-sidebar {
    position: sticky;
    top: calc(var(--admin-topbar-h) + 12px);
}

.admin-card--compact .admin-card__head {
    padding: 12px 14px;
}

.admin-card__head--split {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.admin-card__tools {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.admin-cat-tree {
    list-style: none;
    margin: 0;
    padding: 0;
}

.admin-cat-tree--root {
    max-height: calc(100vh - 180px);
    overflow: auto;
}

.admin-cat-tree__item {
    margin: 0;
}

.admin-cat-tree__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 9px 14px;
    color: #c8d0de;
    border-left: 2px solid transparent;
    transition: background .15s ease, color .15s ease, border-color .15s ease;
}

.admin-cat-tree__link:hover {
    background: rgba(255, 255, 255, 0.03);
    color: #fff;
}

.admin-cat-tree__link.is-active {
    background: rgba(255, 107, 0, 0.12);
    border-left-color: var(--admin-accent);
    color: #fff;
}

.admin-cat-tree .admin-cat-tree .admin-cat-tree__link {
    padding-left: 28px;
    font-size: 13px;
}

.admin-cat-tree .admin-cat-tree .admin-cat-tree .admin-cat-tree__link {
    padding-left: 42px;
}

.admin-cat-tree__name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.admin-cat-tree__count {
    flex-shrink: 0;
    font-size: 11px;
    font-weight: 700;
    color: var(--admin-accent);
    background: rgba(255, 107, 0, 0.12);
    border-radius: 999px;
    padding: 2px 8px;
}

.admin-list-meta {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--admin-muted);
    font-size: 13px;
}

.admin-list-meta strong {
    color: var(--admin-accent);
}

.admin-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.06);
    color: #d5dbe8;
}

.admin-badge--ok {
    background: rgba(62, 207, 142, 0.14);
    color: #b8f5d6;
}

.admin-badge--warn {
    background: rgba(255, 176, 32, 0.14);
    color: #ffdca0;
}

.admin-badge--danger {
    background: rgba(255, 92, 92, 0.14);
    color: #ffcaca;
}

.admin-badge--muted {
    background: rgba(255, 255, 255, 0.04);
    color: #8b95a5;
}

.admin-actions-cell {
    white-space: nowrap;
}

.admin-action {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 10px;
    margin: 2px 0;
    border-radius: 8px;
    border: 1px solid var(--admin-border);
    background: rgba(255, 255, 255, 0.03);
    color: #d5dbe8;
    font-size: 12px;
    font-weight: 600;
}

.admin-action:hover {
    color: #fff;
    border-color: rgba(255, 107, 0, 0.45);
}

.admin-action--danger {
    border-color: rgba(255, 92, 92, 0.35);
    color: #ffcaca;
}

.admin-action--warn {
    border-color: rgba(255, 176, 32, 0.35);
    color: #ffdca0;
}

.admin-link {
    color: #fff;
    font-weight: 600;
}

.admin-link:hover {
    color: var(--admin-accent);
}

.admin-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 14px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.admin-pagination__info {
    color: var(--admin-muted);
    font-size: 13px;
}

.admin-empty-note {
    padding: 16px;
    color: var(--admin-muted);
    font-size: 13px;
}

.admin-users-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
    gap: 16px;
    align-items: start;
}

.admin-users-sidebar {
    position: sticky;
    top: calc(var(--admin-topbar-h) + 16px);
}

.admin-users-filter {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 180px auto;
    gap: 10px;
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    text-align: left;
    font-size: 13px;
}

.admin-table th {
    color: var(--admin-muted);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .35px;
}

.admin-table tr.is-active td {
    background: rgba(255, 107, 0, 0.06);
}

.admin-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.admin-pagination a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 34px;
    padding: 0 10px;
    border-radius: 8px;
    border: 1px solid var(--admin-border);
    color: #d5dbe8;
    font-size: 13px;
    font-weight: 600;
}

.admin-pagination a.is-active,
.admin-pagination a:hover {
    border-color: rgba(255, 107, 0, 0.45);
    color: #fff;
    background: rgba(255, 107, 0, 0.12);
}

.admin-user-meta {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--admin-muted);
    font-size: 12px;
    display: grid;
    gap: 6px;
}

.admin-btn--danger {
    background: rgba(255, 92, 92, 0.12);
    border: 1px solid rgba(255, 92, 92, 0.35);
    color: #ffcaca;
}

.admin-btn--danger:hover {
    background: rgba(255, 92, 92, 0.2);
    color: #fff;
}

.admin-check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    color: #d5dbe8;
    font-size: 14px;
}

/* ——— Mobile ——— */
@media (max-width: 1100px) {
    .admin-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .admin-materials-layout {
        grid-template-columns: 1fr;
    }

    .admin-users-layout {
        grid-template-columns: 1fr;
    }

    .admin-users-sidebar {
        position: static;
    }

    .admin-materials-sidebar {
        position: static;
    }

    .admin-cat-tree--root {
        max-height: 320px;
    }

    .admin-users-filter {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .admin-burger { display: inline-flex; }

    .admin-sidebar {
        position: fixed;
        left: 0;
        top: var(--admin-topbar-h);
        height: calc(100vh - var(--admin-topbar-h));
        z-index: 100;
        transform: translateX(-105%);
        transition: transform .22s ease;
        box-shadow: 12px 0 40px rgba(0, 0, 0, 0.35);
    }

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

    .admin-main {
        padding: 16px 14px 32px;
    }

    .admin-page-title {
        font-size: 22px;
    }
}

@media (max-width: 520px) {
    .admin-stats {
        grid-template-columns: 1fr;
    }

    .admin-topbar-link span { display: none; }
}