:root {
  --bg: #0a0a0a;
  --fg: #ffffff;
  --accent: #ff3e00;
  --surface: #1a1a1a;
  --surface-alt: #2a2a2a;
  --border: rgba(255, 255, 255, 0.1);
  --font-main: 'Outfit', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --space-unit: 1rem;
  --container-max: 1400px;
  --header-height: 80px;
  --transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

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

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

h1, h2, h3, .display-text {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 0.9;
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

.section-padding {
  padding: 8rem 0;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
}

.nav-links a:hover {
  opacity: 1;
}

.nav-actions {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-title {
  font-size: clamp(4rem, 12vw, 10rem);
  margin-bottom: 2rem;
  animation: slideUp 1s cubic-bezier(0.23, 1, 0.32, 1);
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 3rem;
  opacity: 0.8;
  max-width: 500px;
}

.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: var(--surface);
  z-index: 1;
}

.hero-image-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, #1a1a1a, #2a2a2a);
  position: relative;
}

.hero-image-placeholder::after {
  content: 'FW/24 COLLECTION';
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  font-family: var(--font-display);
  font-size: 4rem;
  opacity: 0.1;
  writing-mode: vertical-rl;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 1.25rem 2.5rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.875rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background: var(--accent);
  color: var(--fg);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid var(--fg);
  color: var(--fg);
  background: transparent;
}

.btn-outline:hover {
  background: var(--fg);
  color: var(--bg);
}

/* Product Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  position: relative;
  background: var(--surface);
  overflow: hidden;
  transition: var(--transition);
}

.card-image {
  aspect-ratio: 3/4;
  background: var(--surface-alt);
  position: relative;
  overflow: hidden;
}

.card-image .quick-buy {
  position: absolute;
  bottom: -60px;
  left: 0;
  width: 100%;
  background: var(--fg);
  color: var(--bg);
  text-align: center;
  padding: 1.25rem;
  font-weight: 700;
  transition: var(--transition);
}

.card:hover .card-image .quick-buy {
  bottom: 0;
}

.card-info {
  padding: 1.5rem 0;
}

.card-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.card-price {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
}

/* Brand Story */
.story-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
}

.story-content h2 {
  font-size: 4rem;
  margin-bottom: 2rem;
}

.story-content p {
  font-size: 1.25rem;
  opacity: 0.7;
  margin-bottom: 3rem;
  line-height: 1.8;
}

/* Footer */
footer {
  background: var(--surface);
  padding: 6rem 0 3rem;
  border-top: 1px solid var(--border);
}

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

.footer-logo {
  font-size: 2rem;
  font-family: var(--font-display);
  font-weight: 800;
  margin-bottom: 1.5rem;
  display: block;
}

.footer-heading {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 1.5rem;
  opacity: 0.5;
}

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

.footer-links a {
  opacity: 0.7;
}

.footer-links a:hover {
  opacity: 1;
  padding-left: 0.5rem;
}

.footer-bottom {
  padding-top: 3rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  opacity: 0.5;
}

/* Placeholders */
.placeholder-image {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #222, #111);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.placeholder-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, transparent, rgba(0,0,0,0.4));
}

.placeholder-icon {
  width: 24px;
  height: 24px;
}

/* Animations */
@keyframes slideUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1024px) {
  .nav-links { display: none; }
  .story-section { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-bg { width: 100%; opacity: 0.3; }
  .hero-content { padding: 0 1rem; }
}

/* Instagram Feed */
.insta-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.insta-item {
  aspect-ratio: 1;
  background: var(--surface-alt);
  position: relative;
  overflow: hidden;
}

.insta-item:hover .insta-overlay {
  opacity: 1;
}

.insta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 62, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

/* Shop Page Specifics */
.shop-header {
  padding: 120px 0 40px;
  border-bottom: 1px solid var(--border);
}
.shop-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 4rem;
  margin-top: 4rem;
}
.filters h4 {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  margin-top: 2rem;
}
.filter-group {
  margin-bottom: 2.5rem;
}
.filter-list li {
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  opacity: 0.7;
  cursor: pointer;
  transition: var(--transition);
}
.filter-list li:hover {
  opacity: 1;
  color: var(--accent);
}
.filter-checkbox {
  width: 16px;
  height: 16px;
  border: 1px solid var(--border);
  display: inline-block;
}
.color-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

/* Product Page Specifics */
.product-page {
  padding: 120px 0 80px;
}
.product-layout {
  display: grid;
  grid-template-columns: 1fr 500px;
  gap: 6rem;
}
.product-gallery {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.gallery-image {
  aspect-ratio: 4/5;
  background: var(--surface);
}
.product-sticky {
  position: sticky;
  top: 120px;
  height: fit-content;
}
.tag {
  background: var(--accent);
  color: white;
  padding: 4px 12px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 1rem;
}
.size-selector {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin: 2rem 0;
}
.size-btn {
  border: 1px solid var(--border);
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}
.size-btn:hover, .size-btn.active {
  border-color: var(--fg);
  background: var(--fg);
  color: var(--bg);
}
.product-details {
  margin-top: 4rem;
  padding-top: 4rem;
  border-top: 1px solid var(--border);
}
.detail-item {
  margin-bottom: 2rem;
}
.detail-item h4 {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}
.detail-item p {
  opacity: 0.7;
  font-size: 0.9rem;
}
.reviews {
  margin-top: 8rem;
}
.review-card {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
}
.review-photos {
  display: flex;
  gap: 10px;
  margin-top: 1rem;
}
.review-photo {
  width: 80px;
  height: 80px;
  background: var(--surface-alt);
}

/* Utility Classes */
.text-center { text-align: center; }
.flex-between { display: flex; justify-content: space-between; }
.align-end { align-items: flex-end; }
.w-full { width: 100%; }
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mb-4 { margin-bottom: 4rem; }
.opacity-6 { opacity: 0.6; }
.opacity-7 { opacity: 0.7; }
.display-lg { font-size: clamp(4rem, 12vw, 10rem); }
.display-md { font-size: 3rem; }
.display-sm { font-size: 2rem; }

@media (max-width: 1024px) {
  .shop-layout { grid-template-columns: 1fr; }
  .filters { display: none; }
  .product-layout { grid-template-columns: 1fr; }
  .product-sticky { position: static; }
}