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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
    background-attachment: fixed;
}

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

header {
    text-align: center;
    color: white;
    margin-bottom: 40px;
    padding: 30px 0;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.subtitle {
    font-size: 1.2em;
    opacity: 0.9;
}

.search-section {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    margin-bottom: 30px;
}

.search-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.search-input {
    flex: 1;
    padding: 15px 20px;
    font-size: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    outline: none;
    transition: border-color 0.3s;
}

.search-input:focus {
    border-color: #667eea;
}

.search-btn {
    padding: 15px 30px;
    font-size: 16px;
    font-weight: bold;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.search-btn:active {
    transform: translateY(0);
}

.search-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.search-options {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
}

.radio-label input[type="radio"] {
    cursor: pointer;
}

.loading {
    text-align: center;
    padding: 40px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading p {
    color: #666;
    font-size: 18px;
}

.results {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.results h2 {
    margin-bottom: 25px;
    color: #333;
    font-size: 1.8em;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.product-card {
    border: 1px solid #e8e8e8;
    border-radius: 16px;
    padding: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.product-image,
.product-image-placeholder {
    width: 100%;
    height: 250px;
    object-fit: contain;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 0;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
}

.product-image-placeholder {
    font-size: 72px;
    color: #b0b0b0;
    opacity: 0.5;
}

.product-image {
    background: white;
    padding: 10px;
}

.product-card-inner {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.25);
    border-color: #667eea;
}

.product-card .shop-name {
    font-size: 12px;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
    padding: 4px 12px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 12px;
    width: fit-content;
}

.product-card .product-name {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 16px;
    line-height: 1.5;
    min-height: 48px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card .price {
    font-size: 28px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 16px;
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
}

.product-card .price::after {
    content: " ₽";
    font-weight: 600;
}

.product-card .availability {
    font-size: 12px;
    color: #27ae60;
    margin-bottom: 15px;
}

.product-card .product-link {
    display: inline-block;
    padding: 14px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s;
    text-align: center;
    width: 100%;
    margin-top: auto;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.product-card .product-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
    opacity: 0.95;
}

.product-card .product-link:active {
    transform: translateY(0);
}

.error {
    background: #ffebee;
    color: #c62828;
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid #c62828;
    margin-top: 20px;
}

.hidden {
    display: none;
}

.no-results {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 18px;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }
    
    .search-input-group {
        flex-direction: column;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
}