/* ============================================
   Mastering.com Admin Panel
   ============================================ */

:root {
    --bg-primary: #1B0B35;
    --bg-card: #221338;
    --accent-blue: #2B52DE;
    --accent-gold: #D3A65E;
    --text-primary: #FFFFFF;
    --text-secondary: #B8A9CC;
    --text-muted: #7B6B8F;
    --hover-purple: #3A2055;
    --border-color: #3A2055;
    --radius: 12px;
    --radius-sm: 8px;
    --font-display: 'Gotham', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-body: 'Gotham', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --success: #2ecc71;
    --error: #e74c3c;
    --warning: #f39c12;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.5;
}

/* ---- Layout ---- */

.admin-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 100vh;
}

@media (max-width: 768px) {
    .admin-layout { grid-template-columns: 1fr; }
    .admin-sidebar { display: none; }
}

/* ---- Sidebar ---- */

.admin-sidebar {
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    padding: 24px 0;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.admin-sidebar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px 24px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
    text-decoration: none;
}

.admin-sidebar__logo-img {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.admin-sidebar__logo {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.admin-sidebar__logo span { color: var(--accent-gold); }

.admin-sidebar__label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-blue);
    background: rgba(43, 82, 222, 0.15);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
}

.admin-sidebar__nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 8px;
}

.admin-sidebar__link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    transition: all 0.15s;
}

.admin-sidebar__link svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.admin-sidebar__link:hover {
    background: var(--hover-purple);
    color: var(--text-primary);
}

.admin-sidebar__link.active {
    background: rgba(43, 82, 222, 0.15);
    color: var(--accent-blue);
}

.admin-sidebar__footer {
    padding: 16px 8px 0;
    border-top: 1px solid var(--border-color);
    margin-top: 8px;
}

/* ---- Main ---- */

.admin-main {
    padding: 32px 40px;
    max-width: 1100px;
}

/* ---- Page Header ---- */

.admin-page-header {
    margin-bottom: 32px;
}

.admin-page-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 4px;
}

.admin-page-subtitle {
    color: var(--text-muted);
    font-size: 14px;
}

/* ---- Sections ---- */

.admin-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
}

.admin-section__title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.admin-section__desc {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 20px;
}

/* ---- Stats ---- */

.admin-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.admin-stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    min-width: 180px;
}

.admin-stat-card__value {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 700;
    color: var(--accent-gold);
}

.admin-stat-card__label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-top: 4px;
}

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

/* ---- Action Cards ---- */

.admin-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.admin-action-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.admin-action-card:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.admin-action-card svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    opacity: 0.6;
}

/* ---- Buttons ---- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    transition: all 0.2s;
    text-decoration: none;
    color: var(--text-primary);
}

.btn--primary {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

.btn--primary:hover {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    color: var(--bg-primary);
}

.btn--primary:disabled {
    opacity: 0.5;
    cursor: wait;
}

.btn--danger {
    background: transparent;
    border-color: var(--error);
    color: var(--error);
    font-size: 11px;
}

.btn--danger:hover {
    background: var(--error);
    color: #fff;
}

.btn--sm {
    padding: 6px 14px;
    font-size: 11px;
}

/* ---- Forms ---- */

.admin-form { margin-top: 16px; }

.admin-form__field {
    margin-bottom: 16px;
}

.admin-form__label {
    display: block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 6px;
    font-weight: 600;
}

.admin-form__file {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.admin-form__file::file-selector-button {
    background: var(--hover-purple);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 12px;
    margin-right: 12px;
    transition: border-color 0.15s;
}

.admin-form__file::file-selector-button:hover {
    border-color: var(--accent-gold);
}

.admin-form__hint {
    font-size: 11px;
    color: var(--text-muted);
}

/* ---- Logo Preview ---- */

.admin-logo-preview {
    margin-bottom: 20px;
}

.admin-logo-preview__current {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px;
    background: rgba(255,255,255,0.02);
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border-color);
}

.admin-logo-preview__img {
    max-height: 80px;
    max-width: 240px;
    object-fit: contain;
}

.admin-logo-preview__filename {
    font-size: 12px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 8px;
}

.admin-logo-preview__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 32px;
    background: rgba(255,255,255,0.02);
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border-color);
    color: var(--text-muted);
    font-size: 13px;
}

/* ---- Tables ---- */

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

.admin-table td, .admin-table th {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    font-size: 13px;
}

.admin-table th {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    font-weight: 600;
}

.admin-table__key {
    font-family: monospace;
    font-size: 12px;
    color: var(--accent-gold);
    white-space: nowrap;
    width: 200px;
}

.admin-table__sub {
    font-size: 11px;
    color: var(--text-muted);
    font-family: monospace;
}

.admin-table--full {
    margin-top: 8px;
}

/* ---- Badges ---- */

.admin-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.admin-badge--success {
    background: rgba(46, 204, 113, 0.15);
    color: var(--success);
}

.admin-badge--muted {
    background: rgba(123, 107, 143, 0.15);
    color: var(--text-muted);
}

.admin-link {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
}

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

/* ---- Flash messages ---- */

.admin-flashes {
    margin-bottom: 24px;
}

.admin-flash {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 8px;
}

.admin-flash--success {
    background: rgba(46, 204, 113, 0.12);
    border: 1px solid rgba(46, 204, 113, 0.3);
    color: var(--success);
}

.admin-flash--error {
    background: rgba(231, 76, 60, 0.12);
    border: 1px solid rgba(231, 76, 60, 0.3);
    color: var(--error);
}

/* ---- Sync Log ---- */

.admin-sync-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.admin-sync-log {
    margin-top: 24px;
}

.sync-log-entry {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    border-left: 3px solid var(--border-color);
    margin-bottom: 2px;
    background: rgba(255,255,255,0.02);
    font-size: 13px;
}

.sync-log-entry--success { border-left-color: var(--success); }
.sync-log-entry--error   { border-left-color: var(--error); }
.sync-log-entry--warning { border-left-color: var(--warning); }
.sync-log-entry--info    { border-left-color: var(--accent-blue); }

.sync-log-entry__badge {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    flex-shrink: 0;
}

.sync-log-entry--success .sync-log-entry__badge { background: rgba(46,204,113,0.15); color: var(--success); }
.sync-log-entry--error .sync-log-entry__badge   { background: rgba(231,76,60,0.15); color: var(--error); }
.sync-log-entry--warning .sync-log-entry__badge { background: rgba(243,156,18,0.15); color: var(--warning); }
.sync-log-entry--info .sync-log-entry__badge    { background: rgba(43,82,222,0.15); color: var(--accent-blue); }

.sync-log-entry__step {
    font-family: monospace;
    font-size: 12px;
    color: var(--text-muted);
    min-width: 140px;
}

.sync-log-entry__detail {
    flex: 1;
    color: var(--text-secondary);
    min-width: 200px;
}

.sync-log-entry__data {
    width: 100%;
    margin-top: 6px;
}

.sync-log-entry__data summary {
    cursor: pointer;
    font-size: 11px;
    color: var(--accent-blue);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sync-log-entry__data pre {
    margin-top: 8px;
    padding: 12px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    font-size: 11px;
    color: var(--text-secondary);
    overflow-x: auto;
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ---- Spinner ---- */

.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---- Utility ---- */

.text-muted { color: var(--text-muted); }
.text-danger { color: var(--error); font-weight: 600; }