/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Navigation */
.navbar {
    background-color: #1a1a1a;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: #fff;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #007bff;
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    min-height: calc(100vh - 140px);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 3rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 8px;
    margin-bottom: 3rem;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Product Categories */
.product-categories {
    margin-bottom: 3rem;
}

.product-categories h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #333;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.category-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.category-card:hover {
    transform: translateY(-5px);
}

.category-card h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.category-card p {
    color: #666;
    margin-bottom: 1.5rem;
}

.category-link {
    display: inline-block;
    background: #007bff;
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.category-link:hover {
    background: #0056b3;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-info {
    padding: 1.5rem;
}

.product-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.product-description {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.product-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: #007bff;
    margin-bottom: 1rem;
}

.product-availability {
    font-size: 0.9rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.in-stock {
    color: #28a745;
}

.out-of-stock {
    color: #dc3545;
}

.view-product-btn {
    display: inline-block;
    background: #007bff;
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.view-product-btn:hover {
    background: #0056b3;
}

/* Product Detail Page */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.product-images {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.product-main-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
}

.product-thumbnails {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
}

.product-thumbnail {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.product-thumbnail:hover,
.product-thumbnail.active {
    opacity: 1;
}

.product-details {
    padding: 2rem;
    background: white;
    border-radius: 8px;
}

.product-details h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #333;
}

.product-details .price {
    font-size: 2rem;
    font-weight: bold;
    color: #007bff;
    margin-bottom: 1rem;
}

.product-details .availability {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
}

.product-details .description {
    margin-bottom: 2rem;
    line-height: 1.8;
}

.variant-selector {
    margin-bottom: 2rem;
}

.variant-selector label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #333;
}

.variant-selector select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    background: white;
}

.variant-selector select:focus {
    outline: none;
    border-color: #007bff;
}

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

.add-to-cart-btn {
    flex: 1;
    background: #28a745;
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.add-to-cart-btn:hover {
    background: #218838;
}

.add-to-cart-btn:disabled {
    background: #6c757d;
    cursor: not-allowed;
}

/* Contact Page */
.contact-section {
    max-width: 800px;
    margin: 0 auto;
}

.contact-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #333;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.contact-details {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.contact-details h3 {
    margin-bottom: 1.5rem;
    color: #333;
}

.contact-details p {
    margin-bottom: 1rem;
    color: #666;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    margin-bottom: 1.5rem;
    color: #333;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
}

.submit-btn {
    background: #007bff;
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: #0056b3;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: #fff;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .product-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-actions {
        flex-direction: column;
    }
}