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

:root {
    --primary-color: #1a73e8;
    --secondary-color: #0d47a1;
    --accent-color: #ffc107;
    --dark-color: #1a1a1a;
    --light-color: #f5f7fa;
    --success-color: #4caf50;
    --danger-color: #f44336;
    --border-radius: 10px;
    --box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #fff;
}

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

/* Header Styles */
.main-header {
    background: white;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--dark-color);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text strong {
    font-size: 1.7rem;
    color: var(--primary-color);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-text small {
    font-size: 0.75rem;
    color: #666;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.main-nav a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
}

.cart-badge {
    background: var(--accent-color);
    color: var(--dark-color);
    border-radius: 50%;
    padding: 2px 7px;
    font-size: 0.7rem;
    font-weight: bold;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--dark-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    background: var(--accent-color);
    color: var(--dark-color);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

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

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

/* Section Styles */
.section {
    padding: 4rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-header p {
    color: #666;
    font-size: 1.1rem;
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.product-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid #eee;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.product-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-color);
    color: var(--dark-color);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.product-info {
    padding: 1.5rem;
}

.product-category {
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.product-name {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--dark-color);
    font-weight: 600;
}

.product-description {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.product-price {
    font-size: 1.8rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 1rem;
}

.product-footer {
    display: flex;
    gap: 0.5rem;
}

/* Categories */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.category-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    text-decoration: none;
    transition: var(--transition);
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(26, 115, 232, 0.4);
}

.category-card svg {
    margin-bottom: 1rem;
}

.category-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Filters */
.filters {
    background: var(--light-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
}

.filter-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group label {
    font-weight: 600;
    color: var(--dark-color);
}

.filter-group select,
.filter-group input {
    padding: 0.7rem 1rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
}

/* Product Detail */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 2rem 0;
}

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

.main-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.thumbnail-images {
    display: flex;
    gap: 1rem;
}

.thumbnail {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--border-radius);
    cursor: pointer;
    border: 3px solid transparent;
    transition: var(--transition);
}

.thumbnail:hover,
.thumbnail.active {
    border-color: var(--primary-color);
}

.product-details h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.product-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.meta-item {
    background: var(--light-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.spec-item {
    background: var(--light-color);
    padding: 1rem;
    border-radius: var(--border-radius);
}

.spec-item strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.3rem;
}

.color-selector {
    margin: 1.5rem 0;
}

.color-selector h4 {
    margin-bottom: 0.8rem;
}

.color-options {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.color-option {
    padding: 0.6rem 1.2rem;
    border: 2px solid #ddd;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.color-option:hover,
.color-option.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}

.features-list {
    list-style: none;
    margin: 1.5rem 0;
}

.features-list li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.features-list li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
}

.quantity-btn {
    background: var(--light-color);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

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

.quantity-input {
    width: 60px;
    text-align: center;
    font-size: 1.2rem;
    font-weight: bold;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    padding: 0.5rem;
}

/* Cart */
.cart-items {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--box-shadow);
}

.cart-item {
    display: grid;
    grid-template-columns: 120px 1fr auto;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid #eee;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-image {
    width: 120px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.cart-item-info h3 {
    margin-bottom: 0.5rem;
}

.cart-item-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.remove-btn {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.remove-btn:hover {
    background: #d32f2f;
}

.cart-summary {
    background: var(--light-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    position: sticky;
    top: 100px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #ddd;
}

.summary-row.total {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    border-top: 2px solid var(--primary-color);
    margin-top: 1rem;
    padding-top: 1rem;
}

/* Checkout Form */
.checkout-form {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Thank You Page */
.thank-you {
    text-align: center;
    padding: 4rem 0;
}

.success-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 2rem;
    background: var(--success-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-icon svg {
    width: 60px;
    height: 60px;
    color: white;
}

.order-summary {
    background: var(--light-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    max-width: 600px;
    margin: 2rem auto;
    text-align: left;
}

/* Footer */
.main-footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

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

.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: white;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--accent-color);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-state svg {
    width: 100px;
    height: 100px;
    color: #ccc;
    margin-bottom: 1rem;
}

.empty-state h3 {
    color: #666;
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 968px) {
    .product-detail {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--box-shadow);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .cart-item {
        grid-template-columns: 100px 1fr;
        gap: 1rem;
    }
    
    .cart-item-actions {
        grid-column: 1 / -1;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
}