/* 
   Nova Storefront Identity - Independent Design System
   Aesthetic: High-End Minimalist Monochrome
*/

:root {
    --nova-bg: #ffffff;
    --nova-text: #000000;
    --nova-text-muted: #666666;
    --nova-accent: #000000;
    --nova-silver: #e0e0e0;
    --nova-border: #000000;
    
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    background-color: var(--nova-bg);
    color: var(--nova-text);
    font-family: var(--font-body);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    line-height: 0.9;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.2s ease;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: saturate(180%) blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--nova-border);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -2px;
}

.nav-links {
    display: flex;
    gap: 4rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

.nav-links a:hover {
    opacity: 0.5;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 150px 5% 100px 5%;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
    max-width: 1600px;
}

.hero-content h1 {
    font-size: clamp(4rem, 10vw, 8rem);
    margin-bottom: 2rem;
}

.hero-content p {
    font-size: 1.1rem;
    max-width: 400px;
    margin-bottom: 3rem;
    letter-spacing: 0.05em;
}

.hero-image {
    position: relative;
    height: 80vh;
    overflow: hidden;
    background: #f0f0f0;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 1.2rem 3rem;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-black {
    background: #000000;
    color: #ffffff;
    border: 1px solid #000000;
}

.btn-black:hover {
    background: #ffffff;
    color: #000000;
}

.btn-outline {
    background: transparent;
    color: #000000;
    border: 1px solid #000000;
}

.btn-outline:hover {
    background: #000000;
    color: #ffffff;
}

/* Collections Grid */
.section-title {
    padding: 4rem 5%;
    border-bottom: 1px solid var(--nova-border);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.section-title h2 {
    font-size: 3rem;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-bottom: 1px solid var(--nova-border);
}

.collection-item {
    border-right: 1px solid var(--nova-border);
    padding: 2rem;
    transition: background 0.3s ease;
}

.collection-item:last-child {
    border-right: none;
}

.collection-item:hover {
    background: #000000;
    color: #ffffff;
}

.item-img {
    width: 100%;
    aspect-ratio: 3/4;
    background: #f0f0f0;
    margin-bottom: 2rem;
    overflow: hidden;
}

.item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.item-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.item-info h3 {
    font-size: 1rem;
    letter-spacing: 0;
}

.item-price {
    font-weight: 600;
    font-size: 0.9rem;
}

/* Footer */
footer {
    padding: 6rem 5% 4rem 5%;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 6rem;
}

.footer-col h4 {
    margin-bottom: 2rem;
    font-size: 0.8rem;
    letter-spacing: 2px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--nova-border);
    padding-top: 2rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-image { height: 60vh; order: -1; }
    .collection-grid { grid-template-columns: repeat(2, 1fr); }
    .collection-item:nth-child(2n) { border-right: none; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .footer-grid { grid-template-columns: 1fr; gap: 3rem; }
    .hero-content h1 { font-size: 4rem; }
}