.admin-container {
    max-width: 1400px;
}

.admin-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    padding: 1rem 2rem;
    border: none;
    background: none;
    color: #666;
    cursor: pointer;
    font-size: 1rem;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}

.tab-btn:hover {
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.admin-header h2 {
    color: var(--primary-color);
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    padding: 0.35rem;
}

.btn-icon .material-icons {
    font-size: 20px;
    line-height: 1;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-danger {
    background-color: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-edit {
    background-color: var(--secondary-color);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    margin-right: 0.5rem;
}

.btn-edit:hover {
    background-color: #2980b9;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.filters select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.form-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
}

.form-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-container {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
    max-width: 700px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    font-size: 0.9rem;
}

.form-container h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.3rem;
}

.form-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: #999;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-close:hover {
    color: var(--accent-color);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.form-row-with-image {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    margin-bottom: 0.75rem;
    align-items: start;
}

.painting-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
}

.painting-preview img {
    max-width: 150px;
    max-height: 150px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 0.5rem;
}

.form-group label {
    margin-bottom: 0.3rem;
    font-weight: 500;
    color: var(--primary-color);
    font-size: 0.85rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.9rem;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
}

.form-group input[type="file"] {
    padding: 0.5rem;
    border: 2px dashed var(--border-color);
    background: #f9f9f9;
    cursor: pointer;
}

.form-group input[type="file"]:hover {
    border-color: var(--primary-color);
    background: #f0f0f0;
}

.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.85rem;
    color: #666;
    font-style: italic;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.admin-table {
    width: 100%;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.admin-table thead {
    background-color: var(--primary-color);
    color: white;
}

.admin-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.admin-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.admin-table tbody tr:hover {
    background-color: #f8f9fa;
}

.admin-table img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
}

.admin-thumbnail {
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.admin-thumbnail:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-visible {
    background-color: #d4edda;
    color: #155724;
}

.status-hidden {
    background-color: #f8d7da;
    color: #721c24;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-success {
    background-color: #d4edda;
    color: #155724;
}

.badge-inactive {
    background-color: #f8d7da;
    color: #721c24;
}

.loading {
    text-align: center;
    padding: 2rem;
    color: #666;
}

@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .filters {
        flex-direction: column;
    }

    .admin-table {
        font-size: 0.9rem;
    }

    .admin-table th,
    .admin-table td {
        padding: 0.5rem;
    }

    .form-container {
        width: 95%;
        padding: 1.5rem;
        max-height: 95vh;
    }

    .form-close {
        top: 0.5rem;
        right: 0.5rem;
    }

    .form-row-with-image {
        grid-template-columns: 1fr;
    }

    .painting-preview {
        justify-content: center;
        margin-top: 1rem;
    }

    .painting-preview img {
        max-width: 100%;
        max-height: 200px;
    }
}

/* Image Modal */
.image-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.image-modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: zoomIn 0.3s;
}

@keyframes zoomIn {
    from { transform: translate(-50%, -50%) scale(0.8); }
    to { transform: translate(-50%, -50%) scale(1); }
}

.image-modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 2001;
    transition: color 0.3s;
}

.image-modal-close:hover,
.image-modal-close:focus {
    color: #bbb;
}