/* Global Styles */
* {
    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: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background-color: #1a1a1a;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    color: #fff;
    font-size: 1.8rem;
    font-weight: bold;
}

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

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #4CAF50;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

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

.tagline {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 300;
}

.description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background-color: #4CAF50;
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    transition: background-color 0.3s, transform 0.2s;
}

.cta-button:hover {
    background-color: #45a049;
    transform: translateY(-2px);
}

/* Features Section */
.features {
    padding: 4rem 0;
    background-color: white;
}

.features h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: #1a1a1a;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.feature p {
    color: #666;
}

/* Featured Products Section */
.featured-products {
    padding: 4rem 0;
    text-align: center;
}

.featured-products h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.section-description {
    color: #666;
    margin-bottom: 2rem;
}

.view-all-link {
    color: #667eea;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
}

.view-all-link:hover {
    text-decoration: underline;
}

/* Product Catalog */
.catalog-header {
    background-color: white;
    padding: 3rem 0;
    text-align: center;
}

.catalog-header h1 {
    font-size: 2.5rem;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.catalog-section {
    padding: 3rem 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.product-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    overflow: hidden;
    position: relative;
}

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

.product-image-fallback,
.product-image-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 3rem;
}

.product-info {
    padding: 1.5rem;
}

.product-name {
    font-size: 1.1rem;
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.product-sku {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.product-condition {
    display: inline-block;
    background-color: #4CAF50;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.product-pricing {
    margin-top: 1rem;
}

.sale-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: #4CAF50;
}

/* Product Detail Page */
.product-detail {
    padding: 3rem 0;
}

.product-detail-container {
    background: white;
    border-radius: 8px;
    padding: 3rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.product-detail-image {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 5rem;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.product-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #f5f5f5;
}

.product-detail-image-fallback,
.product-detail-image-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 5rem;
}

.product-detail-info h1 {
    font-size: 2rem;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.product-detail-info .product-sku {
    font-size: 1rem;
    margin-bottom: 1rem;
}

.product-detail-info .product-condition {
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.product-detail-pricing {
    margin: 2rem 0;
}

.product-detail-pricing .sale-price {
    font-size: 2.5rem;
}

.product-description {
    margin-top: 2rem;
    line-height: 1.8;
    color: #666;
}

.back-link {
    display: inline-block;
    margin-bottom: 2rem;
    color: #667eea;
    text-decoration: none;
    font-weight: bold;
}

.back-link:hover {
    text-decoration: underline;
}

/* Content Pages */
.page-header {
    background-color: white;
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    color: #1a1a1a;
}

.content-section {
    padding: 3rem 0;
}

.content-box {
    background: white;
    border-radius: 8px;
    padding: 3rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    line-height: 1.8;
}

.content-box h2 {
    color: #1a1a1a;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-box h3 {
    color: #333;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.content-box p {
    margin-bottom: 1rem;
    color: #666;
}

.content-box ul {
    margin-left: 2rem;
    margin-bottom: 1rem;
    color: #666;
}

.content-box li {
    margin-bottom: 0.5rem;
}

/* Contact Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

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

.contact-info h2 {
    color: #1a1a1a;
    margin-bottom: 1.5rem;
}

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

.contact-info strong {
    color: #1a1a1a;
}

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

.contact-form h2 {
    color: #1a1a1a;
    margin-bottom: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
}

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

.submit-button {
    background-color: #4CAF50;
    color: white;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-button:hover {
    background-color: #45a049;
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: #fff;
}

.footer-section p {
    color: #ccc;
    margin-bottom: 0.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #4CAF50;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #999;
}

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

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

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

    .tagline {
        font-size: 1.2rem;
    }

    .product-detail-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}