:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161f;
  --fg-primary: #f0f0f5;
  --fg-secondary: #9494a8;
  --fg-muted: #5c5c72;
  --accent-purple: #7c3aed;
  --accent-blue: #3b82f6;
  --accent-glow: #6366f1;
  --accent-neon: #a78bfa;
  --silver: #c4c4d4;
  --font-display: 'Syne', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(ellipse, rgba(124,58,237,0.15) 0%, rgba(99,102,241,0.08) 40%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(99,102,241,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: 100px;
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--accent-neon);
  margin-bottom: 40px;
  background: rgba(124,58,237,0.05);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  background: linear-gradient(135deg, var(--fg-primary) 0%, var(--silver) 50%, var(--accent-neon) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--fg-secondary);
  max-width: 560px;
  margin: 0 auto 60px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-neon);
  letter-spacing: 2px;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--fg-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: rgba(99,102,241,0.2);
}

/* FEATURES */
.features {
  padding: 120px 24px;
  background: var(--bg-secondary);
}

.features-container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--accent-purple);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.features h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.features-intro {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  margin-bottom: 60px;
  max-width: 500px;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(99,102,241,0.08);
  border-radius: 16px;
  padding: 40px 32px;
  transition: border-color 0.3s, transform 0.3s;
}

.feature-card:hover {
  border-color: rgba(124,58,237,0.25);
  transform: translateY(-2px);
}

.feature-card-large {
  grid-column: span 2;
}

.feature-icon {
  font-size: 1.5rem;
  color: var(--accent-blue);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--fg-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* COLLECTIONS */
.collections {
  padding: 120px 24px;
}

.collections-container {
  max-width: 1100px;
  margin: 0 auto;
}

.collections h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 60px;
  letter-spacing: -1px;
}

.collections-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.collection-item {
  padding: 32px 0;
  border-top: 1px solid rgba(99,102,241,0.1);
}

.collection-number {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--accent-purple);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.collection-item h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.collection-item p {
  color: var(--fg-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* CLOSING */
.closing {
  padding: 140px 24px;
  position: relative;
  text-align: center;
  overflow: hidden;
}

.closing-content {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.closing-glow {
  position: absolute;
  bottom: -300px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(59,130,246,0.1) 0%, transparent 60%);
  pointer-events: none;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--fg-primary) 30%, var(--accent-neon) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.closing-sub {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.closing-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.tag {
  padding: 8px 18px;
  border: 1px solid rgba(99,102,241,0.15);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--fg-secondary);
  letter-spacing: 0.5px;
}

/* FOOTER */
.footer {
  padding: 60px 24px;
  border-top: 1px solid rgba(99,102,241,0.08);
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--fg-primary);
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 4px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.footer-dot {
  color: rgba(99,102,241,0.3);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero {
    min-height: 90vh;
    padding: 60px 20px;
  }

  .hero-stats {
    gap: 20px;
  }

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

  .feature-card-large {
    grid-column: span 1;
  }

  .collections-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .closing-tags {
    gap: 8px;
  }

  .tag {
    font-size: 0.75rem;
    padding: 6px 14px;
  }
}

/* ============================================================
   STOREFRONT — NAV, SHOP, CART, CHECKOUT
   ============================================================ */

/* NAV */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--fg-primary);
  text-decoration: none;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--fg-primary) 0%, var(--accent-neon) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--fg-secondary);
  text-decoration: none;
  transition: color 0.2s;
  letter-spacing: 0.3px;
}

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

.nav-cart {
  position: relative;
  color: var(--fg-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  transition: color 0.2s;
}

.nav-cart:hover {
  color: var(--accent-neon);
}

.cart-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--accent-purple);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* HERO CTA (adding to existing hero) */
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

/* Push hero content down for fixed nav */
.hero {
  padding-top: 140px;
}

/* BUTTONS */
.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--accent-purple);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-decoration: none;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover {
  background: #6d28d9;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  padding: 14px 32px;
  background: transparent;
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 8px;
  border: 1px solid rgba(99, 102, 241, 0.3);
  cursor: pointer;
  transition: border-color 0.2s, transform 0.15s;
}

.btn-secondary:hover {
  border-color: rgba(124, 58, 237, 0.6);
  transform: translateY(-1px);
}

.btn-large {
  padding: 16px 40px;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
  text-align: center;
  padding-left: 24px;
  padding-right: 24px;
}

/* PAGE MAIN */
.page-main {
  min-height: 80vh;
  padding-top: 64px;
}

/* SHOP PAGE */
.shop-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

.shop-header {
  text-align: center;
  margin-bottom: 48px;
}

.shop-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -2px;
  background: linear-gradient(135deg, var(--fg-primary) 0%, var(--accent-neon) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.shop-sub {
  color: var(--fg-secondary);
  font-size: 1.05rem;
}

/* FILTER TABS */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  justify-content: center;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 8px 20px;
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--fg-secondary);
  text-decoration: none;
  transition: all 0.2s;
  background: transparent;
}

.filter-tab:hover,
.filter-tab.active {
  border-color: var(--accent-purple);
  color: var(--fg-primary);
  background: rgba(124, 58, 237, 0.1);
}

/* PRODUCT GRID */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid rgba(99, 102, 241, 0.08);
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  display: block;
  transition: border-color 0.25s, transform 0.25s;
}

.product-card:hover {
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-4px);
}

.product-img-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.product-card:hover .product-img {
  transform: scale(1.04);
}

.product-cat-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: rgba(10, 10, 15, 0.8);
  border: 1px solid rgba(124, 58, 237, 0.4);
  border-radius: 100px;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--accent-neon);
  text-transform: uppercase;
}

.product-info {
  padding: 20px;
}

.product-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}

.product-price {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-neon);
}

/* PRODUCT DETAIL */
.product-detail-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

.back-link {
  display: inline-block;
  color: var(--fg-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 40px;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--fg-primary);
}

.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.product-detail-img-wrap {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 1;
}

.product-detail-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail-info {
  padding-top: 16px;
}

.product-detail-name {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
  line-height: 1.2;
}

.product-detail-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-neon);
  margin-bottom: 24px;
}

.product-detail-desc {
  color: var(--fg-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 36px;
}

.add-to-cart-form {
  margin-bottom: 24px;
}

.product-meta {
  display: flex;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--fg-muted);
}

.product-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* CART */
.cart-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

.cart-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 40px;
}

.cart-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cart-item {
  background: var(--bg-card);
  border: 1px solid rgba(99, 102, 241, 0.1);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  gap: 16px;
  align-items: center;
}

.cart-item-img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--fg-primary);
  text-decoration: none;
  display: block;
  margin-bottom: 4px;
}

.cart-item-name:hover {
  color: var(--accent-neon);
}

.cart-item-cat {
  font-size: 0.8rem;
  color: var(--accent-purple);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.cart-item-qty {
  font-size: 0.82rem;
  color: var(--fg-muted);
}

.cart-item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.cart-item-price {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--fg-primary);
}

.cart-remove-btn {
  background: none;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 6px;
  color: rgba(239, 68, 68, 0.7);
  font-size: 0.78rem;
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.cart-remove-btn:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.6);
  color: #ef4444;
}

/* CART SUMMARY */
.cart-summary {
  background: var(--bg-card);
  border: 1px solid rgba(99, 102, 241, 0.12);
  border-radius: 16px;
  padding: 28px;
  position: sticky;
  top: 80px;
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 0.95rem;
  color: var(--fg-secondary);
}

.summary-price {
  font-weight: 600;
  color: var(--fg-primary);
  font-size: 1.1rem;
}

.cart-summary-note {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-bottom: 24px;
}

/* CART EMPTY */
.cart-empty {
  text-align: center;
  padding: 80px 24px;
  grid-column: 1 / -1;
}

.cart-empty-icon {
  color: var(--fg-muted);
  margin-bottom: 24px;
  display: flex;
  justify-content: center;
}

.cart-empty h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.cart-empty p {
  color: var(--fg-secondary);
  margin-bottom: 32px;
}

/* ERROR BANNER */
.error-banner {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  padding: 12px 16px;
  color: #f87171;
  font-size: 0.9rem;
  margin-bottom: 24px;
}

/* CHECKOUT RESULT */
.checkout-result {
  max-width: 540px;
  margin: 0 auto;
  padding: 80px 24px;
  text-align: center;
}

.result-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 28px;
}

.success-icon {
  color: #34d399;
}

.cancel-icon {
  color: #f87171;
}

.result-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.result-sub {
  color: var(--fg-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.result-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 36px;
  flex-wrap: wrap;
}

/* ERROR PAGE */
.error-page {
  text-align: center;
  padding: 80px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--fg-muted);
  font-size: 1rem;
}

/* RESPONSIVE — STOREFRONT */
@media (max-width: 768px) {
  .nav-links .nav-link:nth-child(2),
  .nav-links .nav-link:nth-child(3),
  .nav-links .nav-link:nth-child(4) {
    display: none;
  }

  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  .product-detail {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .product-detail-img-wrap {
    aspect-ratio: 16/9;
  }

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

  .cart-summary {
    position: static;
  }

  .cart-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    gap: 6px;
  }

  .filter-tab {
    padding: 6px 14px;
    font-size: 0.8rem;
  }
}