:root {
    --admin-sidebar-width: 260px;
    --admin-header-height: 70px;
}

.admin-body {
    display: flex;
    min-height: 100vh;
    background: var(--color-gray-50);
}

.admin-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--admin-sidebar-width);
    height: 100vh;
    background: var(--color-primary);
    color: white;
    z-index: 1000;
}

.admin-logo {
    padding: 25px;
    font-size: 1.4rem;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.admin-nav ul {
    list-style: none;
    padding: 15px 0;
}

.admin-nav a {
    display: block;
    padding: 15px 25px;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    transition: var(--transition);
}

.admin-nav a:hover,
.admin-nav a.active {
    background: rgba(255,255,255,0.1);
    color: white;
}

.admin-main {
    margin-left: var(--admin-sidebar-width);
    flex: 1;
    min-height: 100vh;
}

.admin-header {
    position: sticky;
    top: 0;
    height: var(--admin-header-height);
    background: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    box-shadow: var(--shadow-sm);
    z-index: 100;
}

.admin-header h1 {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.admin-user {
    font-weight: 500;
    color: var(--color-gray-600);
}

.admin-content {
    padding: 30px;
}

/* Stats cards */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stats-card {
    background: white;
    padding: 25px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.stats-card-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
}

.stats-card-label {
    color: var(--color-gray-600);
    margin-bottom: 15px;
}

.stats-card-link {
    color: var(--color-primary-light);
    text-decoration: none;
    font-weight: 600;
}

/* Admin sections */
.admin-section {
    background: white;
    padding: 25px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 25px;
}

.admin-section h2 {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

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

.admin-table th,
.admin-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.admin-table th {
    font-weight: 600;
    color: var(--color-gray-600);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-table tr:hover td {
    background: var(--color-gray-50);
}

/* Forms */
.admin-form .form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.admin-form .form-group {
    margin-bottom: 20px;
}

.admin-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-gray-800);
}

.admin-form input,
.admin-form textarea,
.admin-form select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.admin-form input:focus,
.admin-form textarea:focus,
.admin-form select:focus {
    outline: none;
    border-color: var(--color-primary-light);
}

.admin-form textarea {
    min-height: 150px;
    resize: vertical;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
}

/* Buttons in admin */
.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-danger {
    background: #dc2626;
    color: white;
}

.btn-danger:hover {
    background: #b91c1c;
}

/* Sort handle for drag-drop */
.sort-handle {
    cursor: grab;
    color: var(--color-gray-400);
    padding: 5px;
}

.sort-handle:active {
    cursor: grabbing;
}

/* Mobile admin */
@media (max-width: 768px) {
    .admin-sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .admin-body {
        flex-direction: column;
    }
}