:root {
    --primary-color: #1a1a1a;
    --primary-light: #2d2d2d;
    --accent-color: #64748b;
    --accent-hover: #475569;
    --text-color: #1a1a1a;
    --text-light: #6b7280;
    --bg-color: #fafafa;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
.logo {
    font-family: var(--font-heading);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* Header */
header {
    background: var(--bg-white);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--primary-color);
}

nav {
    display: flex;
    gap: 40px;
}

nav a {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
    color: var(--text-light);
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

nav a:hover::after {
    width: 100%;
}

.cart-icon {
    cursor: pointer;
    position: relative;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition);
}

.cart-icon:hover {
    background: var(--bg-color);
}

#cart-count {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--primary-color);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Hero */
.hero {
    height: 85vh;
    min-height: 600px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('./images/labs_imagefx_20260124_1914_6_var1.png') center/cover;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.6));
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    padding: 20px;
}

.hero-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -1px;
    line-height: 1.1;
}

.hero p {
    font-size: 1.125rem;
    margin-bottom: 40px;
    font-weight: 300;
    opacity: 0.9;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 40px;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: var(--transition);
    border-radius: 4px;
    font-family: var(--font-body);
}

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

.btn-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-block {
    width: 100%;
}

/* Features */
.features {
    background: var(--bg-white);
    padding: 60px 0;
    border-bottom: 1px solid var(--border-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.feature-item {
    text-align: center;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.feature-item h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.feature-item p {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Section Header */
.section-header {
    text-align: center;
    margin: 80px 0 50px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -1px;
    margin-bottom: 12px;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1rem;
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
    padding-bottom: 100px;
}

.product-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

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

.product-image-container {
    position: relative;
    overflow: hidden;
}

.product-image {
    width: 100%;
    height: 380px;
    object-fit: cover;
    transition: var(--transition);
}

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

.quick-view {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    opacity: 0;
    background: var(--bg-white);
    color: var(--primary-color);
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.product-card:hover .quick-view {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.product-info {
    padding: 24px;
}

.product-title {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-color);
}

.product-price {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--primary-color);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    padding: 100px 0;
    text-align: center;
    color: white;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.cta-content p {
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 32px;
}

.newsletter-form {
    display: flex;
    max-width: 450px;
    margin: 0 auto;
    gap: 12px;
}

.newsletter-form input {
    flex: 1;
    padding: 16px 20px;
    border: none;
    border-radius: 4px;
    font-size: 0.875rem;
    font-family: var(--font-body);
}

.newsletter-form .btn {
    padding: 16px 28px;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: #9ca3af;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
}

.footer-col h3 {
    color: white;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.footer-col p,
.footer-col a {
    color: #9ca3af;
    display: block;
    margin-bottom: 12px;
    font-size: 0.875rem;
}

.footer-col a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.social-links a {
    color: #9ca3af;
    font-size: 0.875rem;
}

.footer-bottom {
    border-top: 1px solid #374151;
    margin-top: 60px;
    padding-top: 30px;
    text-align: center;
    font-size: 0.875rem;
}

/* Cart Sidebar */
.cart-overlay,
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    backdrop-filter: blur(4px);
}

.cart-overlay.active,
.modal[style*="block"] {
    opacity: 1;
    visibility: visible;
}

.cart-sidebar {
    position: fixed;
    top: 0;
    right: -450px;
    width: 450px;
    height: 100%;
    background: var(--bg-white);
    z-index: 201;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
}

.cart-sidebar.active {
    right: 0;
}

.cart-header {
    padding: 28px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
    line-height: 1;
}

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

.cart-items {
    flex: 1;
    padding: 28px;
    overflow-y: auto;
}

.empty-cart-msg {
    color: var(--text-light);
    text-align: center;
    padding: 40px 0;
}

.cart-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.cart-item img {
    width: 80px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
}

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

.cart-item-title {
    font-weight: 500;
    margin-bottom: 4px;
}

.cart-item-price {
    color: var(--text-light);
    font-size: 0.875rem;
}

.cart-item-variant {
    font-size: 0.75rem;
    color: var(--accent-color);
    margin-top: 4px;
}

.cart-footer {
    padding: 28px;
    background: var(--bg-color);
    border-top: 1px solid var(--border-color);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 20px;
}

/* Modal Content */
.modal-content {
    background: var(--bg-white);
    margin: 5% auto;
    width: 90%;
    max-width: 1000px;
    padding: 48px;
    position: relative;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.modal-product-image {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.modal-product-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.modal-product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.modal-product-description {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 32px;
}

.variant-label {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.variant-options {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
}

.variant-btn {
    padding: 12px 20px;
    border: 2px solid var(--border-color);
    background: var(--bg-white);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.close-modal {
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
    line-height: 1;
}

.close-modal:hover {
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    nav {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .cart-sidebar {
        width: 100%;
        right: -100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .newsletter-form {
        flex-direction: column;
    }
}