:root {
    --bg-color: #050505;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --accent: #f0f0f0;
    --border: #222222;
    --card-bg: #111111;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, .logo {
    font-family: 'Syne', sans-serif;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 4rem;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

nav.scrolled {
    padding: 1rem 4rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 4px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.cart-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#cart-count {
    background: var(--text-primary);
    color: var(--bg-color);
    padding: 0.1rem 0.4rem;
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: 700;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?ixlib=rb-1.2.1&auto=format&fit=crop&w=2000&q=80');
    background-size: cover;
    background-position: center;
    opacity: 0.6;
    z-index: -1;
}

.hero h1 {
    font-size: 8rem;
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #555);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeUp 1s ease-out;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 2.5rem;
    animation: fadeUp 1.2s ease-out;
}

.btn {
    padding: 1rem 2.5rem;
    background: var(--text-primary);
    color: var(--bg-color);
    border: none;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 2px;
    animation: fadeUp 1.4s ease-out;
}

.btn:hover {
    background: var(--text-secondary);
    transform: translateY(-2px);
}

/* Collections & Products */
section {
    padding: 8rem 4rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.collections-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.collection-card {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/5;
    cursor: pointer;
}

.collection-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.collection-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 50%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 3rem;
    pointer-events: none;
}

.collection-overlay h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.collection-overlay p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 3rem;
}

.product-card {
    position: relative;
    group: hover;
    cursor: pointer;
}

.product-img-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/4;
    background: var(--card-bg);
    margin-bottom: 1.5rem;
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.add-to-cart-overlay {
    position: absolute;
    bottom: -100%;
    left: 0;
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    transition: var(--transition);
}

.product-card:hover .add-to-cart-overlay {
    bottom: 0;
}

.add-to-cart-btn {
    background: var(--text-primary);
    color: var(--bg-color);
    border: none;
    padding: 0.8rem 1.5rem;
    width: 100%;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
}

.add-to-cart-btn:hover {
    background: var(--text-secondary);
}

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

.product-name {
    font-size: 1.1rem;
    font-weight: 500;
}

.product-price {
    color: var(--text-secondary);
    font-weight: 400;
}

.product-category {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.5rem;
}

/* Brand Story */
.brand-story {
    background: var(--card-bg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.story-content {
    padding: 8rem 6rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.story-content h2 {
    font-size: 3rem;
    margin-bottom: 2rem;
    line-height: 1.1;
}

.story-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.story-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 600px;
}

/* Footer */
footer {
    padding: 4rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 2px;
}

.footer-links {
    display: flex;
    gap: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--text-primary);
    color: var(--bg-color);
    padding: 1rem 2rem;
    border-radius: 2px;
    font-weight: 500;
    transform: translateY(150%);
    opacity: 0;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* Animations */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 900px) {
    .brand-story {
        grid-template-columns: 1fr;
    }
    .hero h1 { font-size: 5rem; }
    nav, section, footer { padding: 2rem; }
    .story-content { padding: 4rem 2rem; }
}