/* =====================================================
   3DMotoprint - Modern Dark Theme Stylesheet
   ===================================================== */

/* CSS Variables - Dark Theme */
:root {
    --primary-color: #ff6b35;
    --secondary-color: #f7931e;
    --accent-color: #fdb913;
    --dark-bg: #0d1117;
    --dark-surface: #161b22;
    --dark-border: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --link-color: #79c0ff;
    --link-hover: #ff6b35;
    --success: #3fb950;
    --danger: #f85149;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 1rem;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-top: 1em;
    margin-bottom: 0.5em;
    color: var(--text-primary);
}

h1 {
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--link-hover);
}

strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

/* Navigation Bar */
.navbar {
    background-color: var(--dark-surface);
    border-bottom: 1px solid var(--dark-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(22, 27, 34, 0.9);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    height: 70px;
}

.navbar-brand .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.02em;
    transition: color var(--transition-fast);
}

.navbar-brand .logo:hover {
    color: var(--secondary-color);
}

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

.nav-link {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    font-size: 0.95rem;
    font-weight: 500;
}

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

.cart-link {
    background-color: rgba(255, 107, 53, 0.1);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--primary-color);
}

.cart-link:hover {
    background-color: rgba(255, 107, 53, 0.2);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    gap: 5px;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--dark-surface);
        gap: 0;
        border-bottom: 1px solid var(--dark-border);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-link {
        padding: 1rem 2rem;
        border-bottom: 1px solid var(--dark-border);
    }

    .navbar .container {
        height: auto;
        padding: 1rem;
    }
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--dark-surface) 0%, rgba(255, 107, 53, 0.05) 100%);
    border-bottom: 1px solid var(--dark-border);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 1;
    background: var(--dark-surface);
    border: 1px solid var(--dark-border);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

@media (max-width: 768px) {
    .hero {
        padding: 2rem 0;
    }

    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    line-height: 1;
    position: relative;
    overflow: hidden;
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-secondary {
    background-color: var(--dark-surface);
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: rgba(255, 107, 53, 0.1);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn:disabled:hover {
    background-color: var(--primary-color);
    transform: none;
}

/* Page Header */
.page-header {
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--dark-surface) 0%, rgba(255, 107, 53, 0.05) 100%);
    border-bottom: 1px solid var(--dark-border);
    margin-top: 0;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .page-header {
        padding: 2rem 0;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }
}

/* Features Section */
.features {
    padding: 4rem 0;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
}

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

.feature-card {
    padding: 2rem;
    background-color: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    border-color: var(--primary-color);
    background-color: rgba(255, 107, 53, 0.05);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    margin-top: 0;
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.product-card {
    background-color: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    background-color: var(--dark-bg);
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.product-category {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.product-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    flex: 1;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.product-actions .btn {
    flex: 1;
}

/* Section CTA */
.section-cta {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
}

.section-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Featured Products Section */
.featured-products,
.videos-showcase {
    padding: 4rem 0;
    border-bottom: 1px solid var(--dark-border);
}

.featured-products h2,
.videos-showcase h2 {
    text-align: center;
    margin-bottom: 3rem;
}

/* Videos Preview */
.videos-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.video-card {
    background-color: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.video-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--dark-bg);
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-thumbnail .play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    opacity: 0.9;
    transition: all var(--transition-fast);
}

.video-card:hover .video-thumbnail .play-button {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 1;
}

.video-info {
    padding: 1.5rem;
}

.video-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.video-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.video-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: rgba(255, 107, 53, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    border: 1px solid rgba(255, 107, 53, 0.3);
}

/* CTA Section */
.cta-section {
    padding: 4rem 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(247, 147, 30, 0.05) 100%);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    margin: 4rem 0;
}

.cta-section h2 {
    margin-top: 0;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

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

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

.footer-section h4 {
    margin-top: 0;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.footer-section p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

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

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

.footer-section a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

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

.social-links a {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(255, 107, 53, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-md);
    color: var(--primary-color);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid var(--dark-border);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Shop Controls */
.shop-controls {
    display: flex;
    gap: 2rem;
    justify-content: space-between;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filters, .sort {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.filters label, .sort label {
    font-weight: 600;
    color: var(--text-primary);
}

.filters select, .sort select {
    padding: 0.5rem 1rem;
    background-color: var(--dark-surface);
    color: var(--text-primary);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.filters select:hover, .sort select:hover,
.filters select:focus, .sort select:focus {
    border-color: var(--primary-color);
    outline: none;
}

/* Product Detail Page */
.breadcrumb {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--dark-border);
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 3rem 0;
    border-bottom: 1px solid var(--dark-border);
    margin-bottom: 3rem;
}

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

.main-image {
    width: 100%;
    aspect-ratio: 1;
    background-color: var(--dark-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--dark-border);
}

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

.product-details h1 {
    margin-top: 0;
    font-size: 2rem;
}

.product-details .price {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 700;
    margin: 1rem 0;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.stars {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.stock-status {
    padding: 1rem;
    background-color: rgba(63, 185, 80, 0.1);
    border: 1px solid var(--success);
    border-radius: var(--radius-md);
    color: var(--success);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.specs {
    display: grid;
    gap: 1rem;
    margin: 2rem 0;
    padding: 2rem 0;
    border-top: 1px solid var(--dark-border);
    border-bottom: 1px solid var(--dark-border);
}

.spec-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
}

.spec-label {
    font-weight: 600;
    color: var(--text-primary);
}

.spec-value {
    color: var(--text-secondary);
}

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

.quantity-selector label {
    font-weight: 600;
}

.quantity-input {
    padding: 0.5rem 1rem;
    background-color: var(--dark-surface);
    color: var(--text-primary);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    width: 80px;
    text-align: center;
}

.add-to-cart-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .product-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-details h1 {
        font-size: 1.5rem;
    }
}

/* Related Products */
.related-products {
    padding: 2rem 0;
}

.related-products h2 {
    margin-bottom: 2rem;
}

/* Videos Grid */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.video-filter {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 2rem;
}

.video-filter label {
    font-weight: 600;
    color: var(--text-primary);
}

.video-filter select {
    padding: 0.5rem 1rem;
    background-color: var(--dark-surface);
    color: var(--text-primary);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    cursor: pointer;
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

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

.form-group input,
.form-group textarea {
    padding: 0.75rem 1rem;
    background-color: var(--dark-surface);
    color: var(--text-primary);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.contact-form .btn {
    width: 100%;
}

.form-message {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-top: 1rem;
}

.form-message.success {
    background-color: rgba(63, 185, 80, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.form-message.error {
    background-color: rgba(248, 81, 73, 0.1);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    padding: 1.5rem;
    background-color: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
}

.info-card h3 {
    margin-top: 0;
    color: var(--primary-color);
}

.info-card p {
    margin-bottom: 0;
}

.faq-section {
    padding: 3rem 0;
    border-top: 1px solid var(--dark-border);
}

.faq-section h2 {
    margin-bottom: 2rem;
}

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

.faq-item {
    padding: 1.5rem;
    background-color: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
}

.faq-item h3 {
    margin-top: 0;
    color: var(--primary-color);
}

.faq-item p {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* About & Legal Pages */
.about-section,
.process-section {
    padding: 2rem 0;
    border-bottom: 1px solid var(--dark-border);
    margin-bottom: 2rem;
}

.values-section {
    padding: 2rem 0;
    margin-bottom: 2rem;
}

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

.value-card {
    padding: 2rem;
    background-color: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.value-card:hover {
    border-color: var(--primary-color);
    background-color: rgba(255, 107, 53, 0.05);
}

.value-card h3 {
    margin-top: 0;
    color: var(--primary-color);
}

.process-steps {
    list-style: none;
    counter-reset: step-counter;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.process-steps li {
    counter-increment: step-counter;
    padding: 2rem;
    background-color: var(--dark-surface);
    border: 2px solid var(--dark-border);
    border-radius: var(--radius-lg);
    position: relative;
}

.process-steps li::before {
    content: counter(step-counter);
    position: absolute;
    top: -15px;
    left: 20px;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.process-steps li h3 {
    margin-top: 1rem;
    color: var(--primary-color);
}

.legal-content {
    padding: 2rem 0;
}

.legal-section {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--dark-border);
}

.legal-section article {
    margin-bottom: 1.5rem;
}

.legal-section h3 {
    color: var(--primary-color);
}

.legal-section ul, .legal-section ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.legal-section li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* Cart Page */
.cart-container {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
    padding: 2rem 0;
    min-height: 60vh;
}

.cart-items {
    background-color: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.cart-empty {
    text-align: center;
    padding: 3rem 2rem;
}

.cart-empty p {
    margin-bottom: 2rem;
}

.cart-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: var(--dark-bg);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}

.cart-item-image {
    width: 100px;
    height: 100px;
    background-color: var(--dark-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

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

.cart-item-details {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.cart-item-price {
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.cart-item-quantity input {
    width: 50px;
    padding: 0.25rem;
    background-color: var(--dark-surface);
    color: var(--text-primary);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-sm);
    text-align: center;
}

.cart-item-remove {
    color: var(--danger);
    cursor: pointer;
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

.cart-item-remove:hover {
    color: #ff6b6b;
}

.cart-summary {
    position: sticky;
    top: 100px;
    background-color: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    height: fit-content;
}

.cart-summary h2 {
    margin-top: 0;
    font-size: 1.5rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--dark-border);
}

.summary-row.total {
    border-bottom: none;
    margin-top: 0.75rem;
    padding-top: 1rem;
    padding-bottom: 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.checkout-section {
    margin: 2rem 0;
}

.cart-summary .btn {
    width: 100%;
    margin-top: 1rem;
}

@media (max-width: 1024px) {
    .cart-container {
        grid-template-columns: 1fr;
    }

    .cart-summary {
        position: relative;
        top: auto;
    }
}

/* Lazy Loading Placeholder */
img[loading="lazy"] {
    background-color: var(--dark-surface);
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s infinite;
}

/* Responsive Grid */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
    }

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

    .videos-preview,
    .videos-grid {
        grid-template-columns: 1fr;
    }

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

    .process-steps {
        grid-template-columns: 1fr;
    }

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

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .hamburger,
    .btn {
        display: none;
    }

    body {
        background-color: white;
        color: black;
    }

    a {
        color: blue;
    }
}