:root {
    --sidebar-w: 220px;
    --color-bg: #f5f6f8;
    --color-surface: #ffffff;
    --color-text: #1a1a1a;
    --color-muted: #6b7280;
    --color-primary: #2563eb;
    --color-border: #e5e7eb;
    --color-danger: #dc2626;
    --color-success: #16a34a;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--color-bg); color: var(--color-text); }

.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: var(--sidebar-w);
    background: #111827;
    color: #fff;
    display: flex;
    flex-direction: column;
    padding: 1.5rem 0;
    flex-shrink: 0;
}
.admin-brand { font-weight: 700; font-size: 1.1rem; padding: 0 1.5rem 1.5rem; }
.admin-sidebar nav { display: flex; flex-direction: column; flex: 1; }
.admin-sidebar nav a { color: #d1d5db; text-decoration: none; padding: 0.6rem 1.5rem; }
.admin-sidebar nav a:hover { background: #1f2937; color: #fff; }
.admin-user { padding: 1rem 1.5rem; font-size: 0.85rem; color: #9ca3af; border-top: 1px solid #1f2937; }
.admin-user a { color: #93c5fd; }

.admin-content { flex: 1; padding: 2rem; max-width: 1100px; }

h1 { margin-top: 0; }

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: start; }
.form-grid label { display: flex; flex-direction: column; font-size: 0.9rem; color: var(--color-muted); gap: 0.35rem; }
.form-grid label.full { grid-column: 1 / -1; }
.form-grid input, .form-grid select, .form-grid textarea {
    font: inherit; padding: 0.5rem 0.6rem; border: 1px solid var(--color-border); border-radius: 6px; color: var(--color-text);
}
.form-grid button { grid-column: 1 / -1; justify-self: start; }

button, .btn-secondary {
    background: var(--color-primary); color: #fff; border: none; padding: 0.55rem 1.1rem;
    border-radius: 6px; cursor: pointer; font-size: 0.95rem; text-decoration: none; display: inline-block;
}
button:hover { opacity: 0.9; }
.btn-secondary { background: #e5e7eb; color: var(--color-text); margin-left: 0.5rem; }
.link-danger { background: none; border: none; color: var(--color-danger); cursor: pointer; padding: 0; font: inherit; text-decoration: underline; }

.admin-table { width: 100%; border-collapse: collapse; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 8px; overflow: hidden; }
.admin-table th, .admin-table td { padding: 0.7rem 1rem; text-align: left; border-bottom: 1px solid var(--color-border); }
.admin-table th { background: #fafafa; font-size: 0.85rem; color: var(--color-muted); text-transform: uppercase; }
.admin-table .actions { display: flex; gap: 0.75rem; align-items: center; }

.badge { padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-active { background: #dcfce7; color: #166534; }
.badge-maintenance { background: #fef9c3; color: #854d0e; }
.badge-disabled { background: #fee2e2; color: #991b1b; }

.flash { padding: 0.75rem 1rem; border-radius: 6px; margin-bottom: 1.5rem; }
.flash-success { background: #dcfce7; color: #166534; }
.flash-error { background: #fee2e2; color: #991b1b; }

.stat-grid { display: flex; gap: 1rem; margin-bottom: 2rem; }
.stat-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 8px; padding: 1.5rem 2rem; text-align: center; }
.stat-number { display: block; font-size: 2rem; font-weight: 700; }
.stat-label { color: var(--color-muted); font-size: 0.9rem; }

.site-switcher { margin-bottom: 1.5rem; }
.hint { color: var(--color-muted); font-size: 0.85rem; }

.media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; }
.media-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 8px; padding: 0.75rem; text-align: center; }
.media-item img { max-width: 100%; height: 100px; object-fit: cover; border-radius: 4px; }
.media-file-icon { font-size: 2.5rem; height: 100px; display: flex; align-items: center; justify-content: center; }
.media-filename { font-size: 0.8rem; word-break: break-all; margin: 0.5rem 0 0.25rem; }
.media-path { width: 100%; font-size: 0.7rem; margin-bottom: 0.5rem; }

.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: #111827; }
.login-box { background: #fff; padding: 2.5rem; border-radius: 10px; width: 320px; display: flex; flex-direction: column; gap: 1rem; }
.login-box h1 { margin-top: 0; font-size: 1.3rem; }
.login-box label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.9rem; color: var(--color-muted); }
.login-box input { padding: 0.6rem; border: 1px solid var(--color-border); border-radius: 6px; font: inherit; }