/* style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 0;
    margin-bottom: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.header h1 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.nav a {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    transition: background 0.3s;
}

.nav a:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Стили для таблицы */
.table-container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin-bottom: 30px;
}

.filters {
    padding: 20px;
    background: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
}

.filter-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.filter-group input,
.filter-group select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.search-box {
    display: flex;
    gap: 10px;
}

.search-box input {
    flex: 1;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5a67d8;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

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

.products-table th {
    background: #667eea;
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
}

.products-table td {
    padding: 15px;
    border-bottom: 1px solid #dee2e6;
}

.products-table tr:hover {
    background: #f8f9fa;
}

.thumbnail {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 5px;
    border: 1px solid #ddd;
}

.actions {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}

/* Стили для форм */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #495057;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.file-upload {
    border: 2px dashed #ddd;
    padding: 20px;
    text-align: center;
    border-radius: 5px;
    cursor: pointer;
    transition: border-color 0.3s;
}

.file-upload:hover {
    border-color: #667eea;
}

.file-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.file-preview img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 5px;
    border: 1px solid #ddd;
}

.attachment-list {
    list-style: none;
    margin-top: 10px;
}

.attachment-list li {
    padding: 5px 0;
    border-bottom: 1px solid #eee;
}

/* Стили для страницы просмотра */
.product-view {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.product-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 20px;
}

.product-info {
    margin-bottom: 20px;
}

.product-info h2 {
    color: #667eea;
    margin-bottom: 10px;
}

.price {
    font-size: 24px;
    font-weight: bold;
    color: #28a745;
    margin: 10px 0;
}

.category {
    display: inline-block;
    background: #e9ecef;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 14px;
    color: #495057;
}

/* Адаптивность */
@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .nav {
        flex-direction: column;
        align-items: center;
    }
    
    .nav a {
        width: 100%;
        text-align: center;
        margin-bottom: 5px;
    }
    
    .filter-group {
        grid-template-columns: 1fr;
    }
    
    .products-table {
        display: block;
        overflow-x: auto;
    }
    
    .actions {
        flex-direction: column;
    }
    
    .form-container {
        padding: 15px;
    }
    
    .thumbnail {
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 8px 15px;
        font-size: 13px;
    }
    
    .product-view {
        padding: 15px;
    }
}

/* Уведомления */
.alert {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Пагинация */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    text-decoration: none;
    color: #333;
}

.pagination .active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

/* Заголовки разделов */
.section-title {
    color: #495057;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
}