/* =====================================================
   YASU — Design System & Global Styles
   ===================================================== */

/* ---- 1. Custom Properties ---- */
:root {
  --primary: #6C47FF;
  --primary-dark: #4f30d6;
  --primary-light: #8e6bff;
  --secondary: #FF6B6B;
  --accent: #FFD93D;
  --success: #6BCB77;
  --warning: #FFD93D;
  --error: #FF6B6B;

  --bg: #0d0d12;
  --bg-soft: #13131e;
  --bg-card: #1a1a2e;
  --bg-elevated: #1e1e30;
  --surface: rgba(255,255,255,0.05);
  --surface-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.15);

  --text: #f0f0f8;
  --text-muted: #9999bb;
  --text-faint: #555577;
  --text-on-primary: #ffffff;

  --gradient: linear-gradient(135deg, #6C47FF 0%, #FF6B6B 100%);
  --gradient-soft: linear-gradient(135deg, rgba(108,71,255,0.15) 0%, rgba(255,107,107,0.15) 100%);

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 24px 64px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(108,71,255,0.25);

  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 0.45s cubic-bezier(0.4,0,0.2,1);

  --header-h: 72px;

  --font-display: 'Outfit', sans-serif;
  --font-body: 'Noto Sans KR', sans-serif;
}

/* ---- 2. Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ---- 3. Typography ---- */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; }
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- 4. Layout Utilities ---- */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 100px 0; }
.hidden { display: none !important; }

/* ---- 5. Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108,71,255,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108,71,255,0.55);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border-strong);
}
.btn-ghost:hover {
  background: var(--surface-hover);
  border-color: var(--primary-light);
  color: var(--primary-light);
}
.btn-outline {
  background: transparent;
  color: var(--primary-light);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}
.btn-lg { padding: 18px 36px; font-size: 1.05rem; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-danger { background: var(--error); color: #fff; }

/* ---- 6. Icons / Icon Buttons ---- */
.icon-btn {
  position: relative;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  transition: all var(--transition);
}
.icon-btn:hover {
  background: var(--surface-hover);
  border-color: var(--primary-light);
  color: var(--primary-light);
}
.cart-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--gradient);
  color: #fff;
  font-size: 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- 7. Header ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(13,13,18,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}
.header.scrolled {
  background: rgba(13,13,18,0.95);
  box-shadow: var(--shadow);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 32px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.8rem;
  letter-spacing: -1px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--text);
  background: var(--surface);
}
.nav-link.active {
  background: var(--gradient-soft);
  color: var(--primary-light);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 16px;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Search Bar */
.search-bar {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 16px 0;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
  position: absolute;
  top: 100%;
  left: 0; right: 0;
}
.search-bar.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}
.search-bar .container {
  display: flex;
  align-items: center;
  gap: 16px;
}
.search-input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  padding: 12px 20px;
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition);
}
.search-input:focus { border-color: var(--primary); }
.search-input::placeholder { color: var(--text-faint); }
.search-close {
  color: var(--text-muted);
  font-size: 1.2rem;
  padding: 8px;
  border-radius: var(--radius-full);
  transition: color var(--transition);
}
.search-close:hover { color: var(--text); }

/* Mobile nav open */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0; bottom: 0;
    background: var(--bg-soft);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: 999;
  }
  .nav.open { transform: translateX(0); }
  .nav-link { font-size: 1.4rem; }
}

/* ---- 8. Hero ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-h);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 80% at 110% -20%, rgba(108,71,255,0.35) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at -20% 110%, rgba(255,107,107,0.25) 0%, transparent 60%),
    var(--bg);
}
.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--gradient);
  opacity: 0.12;
  animation: float linear infinite;
}
@keyframes float {
  from { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 0.12; }
  90% { opacity: 0.12; }
  to { transform: translateY(-100px) scale(1); opacity: 0; }
}
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 80px 0;
}
.hero-badge {
  display: inline-block;
  background: var(--gradient-soft);
  border: 1px solid rgba(108,71,255,0.3);
  color: var(--primary-light);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease both;
}
.hero-title {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1.1;
  margin-bottom: 24px;
  animation: fadeInUp 0.7s 0.1s ease both;
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.8;
  animation: fadeInUp 0.7s 0.2s ease both;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 72px;
  animation: fadeInUp 0.7s 0.3s ease both;
}
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  animation: fadeInUp 0.7s 0.4s ease both;
}
.stat-item { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.82rem; color: var(--text-faint); font-weight: 500; letter-spacing: 0.05em; }
.stat-divider { width: 1px; height: 48px; background: var(--border-strong); }
.hero-scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-faint);
  font-size: 0.75rem;
  font-family: var(--font-display);
  letter-spacing: 0.1em;
  animation: fadeIn 1s 1s ease both;
}
.scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid var(--text-faint);
  border-bottom: 2px solid var(--text-faint);
  transform: rotate(45deg);
  animation: bounce 1.5s ease infinite;
}
@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(5px); }
}

/* ---- 9. Section Header ---- */
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  background: var(--gradient-soft);
  border: 1px solid rgba(108,71,255,0.3);
  color: var(--primary-light);
  padding: 5px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.section-desc {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
}
.section-cta { text-align: center; margin-top: 52px; }

/* ---- 10. Category Cards ---- */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
}
.category-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
  background: var(--bg-elevated);
}
.category-icon { font-size: 2.5rem; margin-bottom: 12px; }
.category-name { font-family: var(--font-display); font-weight: 600; font-size: 1rem; color: var(--text); margin-bottom: 4px; }
.category-count { font-size: 0.8rem; color: var(--text-faint); }

/* ---- 11. Product Cards ---- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-8px);
  border-color: rgba(108,71,255,0.4);
  box-shadow: var(--shadow-lg);
}
.product-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--bg-elevated);
}
.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.product-card:hover .product-img { transform: scale(1.05); }

/* Placeholder image */
.product-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-elevated));
  font-size: 3.5rem;
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--gradient);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  z-index: 1;
}
.product-badge.sale { background: linear-gradient(135deg, #FF6B6B, #FF8E53); }
.product-badge.new { background: var(--gradient); }
.product-badge.best { background: linear-gradient(135deg, #FFD93D, #FF8E53); color: #111; }

.product-wishlist {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(13,13,18,0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition);
  z-index: 1;
  opacity: 0;
}
.product-card:hover .product-wishlist { opacity: 1; }
.product-wishlist:hover { background: rgba(255,107,107,0.2); border-color: var(--secondary); transform: scale(1.1); }
.product-wishlist.active { opacity: 1; color: var(--secondary); }

.product-info {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.product-category {
  font-size: 0.75rem;
  color: var(--text-faint);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.product-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  line-height: 1.4;
}
.product-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
}
.stars-sm { color: var(--accent); letter-spacing: 1px; }
.rating-count { color: var(--text-faint); }
.product-price-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}
.product-price {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text);
}
.product-original-price {
  font-size: 0.85rem;
  color: var(--text-faint);
  text-decoration: line-through;
}
.product-discount {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--secondary);
}
.product-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.product-actions .btn { flex: 1; justify-content: center; }

/* List View */
.products-grid.list-view { grid-template-columns: 1fr; }
.products-grid.list-view .product-card { flex-direction: row; }
.products-grid.list-view .product-img-wrap { width: 200px; flex-shrink: 0; aspect-ratio: auto; }
.products-grid.list-view .product-img-placeholder { height: 200px; }

/* ---- 12. Promo Banner ---- */
.promo-banner {
  position: relative;
  padding: 80px 0;
  overflow: hidden;
}
.promo-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #1a0a4a 0%, #2a0a1a 100%);
  z-index: 0;
}
.promo-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.promo-tag {
  display: inline-block;
  background: rgba(255,215,61,0.15);
  border: 1px solid rgba(255,215,61,0.3);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.promo-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.promo-desc { color: var(--text-muted); margin-bottom: 28px; font-size: 1rem; }
.promo-visual {
  position: relative;
  width: 300px;
  height: 300px;
  flex-shrink: 0;
}
.promo-circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
}
.promo-circle.c1 { width: 250px; height: 250px; background: var(--primary); top: 0; right: 0; animation: pulse 3s ease infinite; }
.promo-circle.c2 { width: 180px; height: 180px; background: var(--secondary); bottom: 0; left: 20px; animation: pulse 3s 1s ease infinite; }
.promo-circle.c3 { width: 100px; height: 100px; background: var(--accent); top: 50%; left: 50%; transform: translate(-50%,-50%); animation: pulse 3s 2s ease infinite; }
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.15; }
  50% { transform: scale(1.1); opacity: 0.25; }
}

/* ---- 13. Values ---- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}
.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition);
}
.value-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.value-icon { font-size: 2.5rem; margin-bottom: 16px; }
.value-card h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; margin-bottom: 10px; }
.value-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

/* ---- 14. Newsletter ---- */
.newsletter-section { padding: 80px 0; }
.newsletter-card {
  background: var(--gradient);
  border-radius: var(--radius-xl);
  padding: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.newsletter-text h2 { font-size: 2rem; font-weight: 800; letter-spacing: -1px; color: #fff; margin-bottom: 8px; }
.newsletter-text p { color: rgba(255,255,255,0.75); font-size: 1rem; }
.newsletter-form {
  display: flex;
  gap: 12px;
  flex: 1;
  min-width: 300px;
  max-width: 480px;
}
.newsletter-input {
  flex: 1;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-full);
  padding: 14px 20px;
  color: #fff;
  font-size: 0.95rem;
  outline: none;
}
.newsletter-input::placeholder { color: rgba(255,255,255,0.6); }
.newsletter-input:focus { border-color: rgba(255,255,255,0.6); }
.newsletter-form .btn-primary {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: none;
}
.newsletter-form .btn-primary:hover { background: rgba(255,255,255,0.9); box-shadow: 0 4px 16px rgba(0,0,0,0.2); }

/* ---- 15. Footer ---- */
.footer { background: var(--bg-soft); border-top: 1px solid var(--border); padding: 72px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-logo { font-size: 2rem; }
.footer-tagline { color: var(--text-faint); font-size: 0.88rem; margin-top: 8px; margin-bottom: 20px; }
.social-links { display: flex; gap: 10px; }
.social-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition);
}
.social-btn:hover { background: var(--gradient); border-color: transparent; transform: scale(1.1); }
.footer-col h4 { font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; color: var(--text); margin-bottom: 20px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--text-faint); font-size: 0.88rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-info { color: var(--text-faint); font-size: 0.8rem; line-height: 1.6; }
.footer-copy { color: var(--text-faint); font-size: 0.82rem; }

/* ---- 16. Page Hero ---- */
.page-hero {
  padding: calc(var(--header-h) + 60px) 0 60px;
  text-align: center;
  background: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(108,71,255,0.2) 0%, transparent 70%);
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-bottom: 20px;
}
.breadcrumb a:hover { color: var(--primary-light); }
.page-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -2px;
  margin-bottom: 16px;
}
.page-desc { color: var(--text-muted); font-size: 1.05rem; max-width: 560px; margin: 0 auto; }

/* ---- 17. Shop Page ---- */
.shop-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}
.shop-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.sidebar-header h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; }
.filter-reset {
  font-size: 0.82rem;
  color: var(--text-faint);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.filter-reset:hover { color: var(--secondary); border-color: var(--secondary); }
.filter-group { margin-bottom: 28px; }
.filter-title { font-family: var(--font-display); font-weight: 600; font-size: 0.88rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px; }
.filter-options { display: flex; flex-direction: column; gap: 8px; }
.filter-option {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.filter-option:hover { background: var(--surface); }
.filter-option input[type="checkbox"] { accent-color: var(--primary); width: 16px; height: 16px; }
.filter-option label { font-size: 0.9rem; cursor: pointer; flex: 1; }
.filter-option.active { background: var(--gradient-soft); }
.range-input {
  width: 100%;
  accent-color: var(--primary);
  margin-bottom: 10px;
}
.price-labels { display: flex; justify-content: space-between; font-size: 0.82rem; color: var(--text-faint); }
.sort-select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
}
.sort-select:focus { border-color: var(--primary); }

.shop-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.product-count { color: var(--text-muted); font-size: 0.9rem; }
.product-count span { color: var(--text); font-weight: 600; }
.view-toggle { display: flex; gap: 6px; }
.view-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.view-btn.active, .view-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.mobile-filter-btn {
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 10px 18px;
  color: var(--text);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}
.page-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition);
}
.page-btn:hover, .page-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 80px 0;
}
.empty-icon { font-size: 4rem; margin-bottom: 20px; }
.empty-state h3 { font-family: var(--font-display); font-size: 1.5rem; margin-bottom: 10px; }
.empty-state p { color: var(--text-muted); margin-bottom: 24px; }

/* ---- 18. Product Detail ---- */
.product-detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 32px;
}
.product-gallery { display: flex; flex-direction: column; gap: 16px; }
.gallery-main {
  aspect-ratio: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-main-placeholder { font-size: 6rem; }
.gallery-thumbs { display: flex; gap: 10px; }
.gallery-thumb {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 2px solid var(--border);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: all var(--transition);
}
.gallery-thumb.active, .gallery-thumb:hover { border-color: var(--primary); }

.product-detail-info { display: flex; flex-direction: column; gap: 20px; }
.product-detail-category { font-family: var(--font-display); font-size: 0.82rem; color: var(--primary-light); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }
.product-detail-name { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -1px; }
.product-detail-rating { display: flex; align-items: center; gap: 10px; }
.product-detail-price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.product-detail-original { font-size: 1rem; color: var(--text-faint); text-decoration: line-through; }
.product-detail-desc { color: var(--text-muted); line-height: 1.8; font-size: 0.95rem; border-top: 1px solid var(--border); padding-top: 20px; }
.product-option-group { display: flex; flex-direction: column; gap: 10px; }
.option-label { font-family: var(--font-display); font-weight: 600; font-size: 0.88rem; color: var(--text-muted); }
.option-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.option-btn {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.88rem;
  transition: all var(--transition);
}
.option-btn:hover, .option-btn.active {
  background: var(--gradient-soft);
  border-color: var(--primary);
  color: var(--primary-light);
}
.qty-row { display: flex; align-items: center; gap: 12px; }
.qty-ctrl {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.qty-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: all var(--transition);
}
.qty-btn:hover { color: var(--text); background: var(--surface); }
.qty-num { min-width: 40px; text-align: center; font-family: var(--font-display); font-weight: 600; }
.product-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.product-cta .btn { flex: 1; justify-content: center; }

/* ---- 19. Tabs ---- */
.product-tabs-section { padding-top: 0; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 36px; }
.tab-btn {
  padding: 14px 24px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--primary-light); border-bottom-color: var(--primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Reviews */
.reviews-section { display: flex; flex-direction: column; gap: 32px; }
.review-summary { display: flex; align-items: center; gap: 20px; }
.review-score { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.score-number { font-family: var(--font-display); font-size: 3rem; font-weight: 900; }
.stars { color: var(--accent); font-size: 1.1rem; letter-spacing: 2px; }
.reviews-list { display: flex; flex-direction: column; gap: 20px; }
.review-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.reviewer-name { font-family: var(--font-display); font-weight: 600; font-size: 0.95rem; }
.review-date { font-size: 0.8rem; color: var(--text-faint); margin-left: auto; }
.review-text { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }
.write-review h4 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin-bottom: 16px; }
.review-form { display: flex; flex-direction: column; gap: 12px; max-width: 560px; }
.star-rating { display: flex; flex-direction: row-reverse; justify-content: flex-end; gap: 4px; font-size: 1.8rem; color: var(--text-faint); cursor: pointer; }
.star-rating span:hover, .star-rating span:hover ~ span { color: var(--accent); }
.star-rating.rated span { color: var(--text-faint); }
.star-rating.rated span.selected, .star-rating.rated span.selected ~ span { color: var(--accent); }
.form-input, .form-textarea, .form-select {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
}
.form-input:focus, .form-textarea:focus { border-color: var(--primary); }
.form-textarea { resize: vertical; }

/* Shipping Info */
.shipping-info { display: flex; flex-direction: column; gap: 24px; max-width: 600px; }
.shipping-info h4 { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; margin-bottom: 10px; }
.shipping-info ul { display: flex; flex-direction: column; gap: 8px; padding-left: 4px; }
.shipping-info li { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; padding-left: 16px; position: relative; }
.shipping-info li::before { content: "•"; position: absolute; left: 0; color: var(--primary-light); }

/* ---- 20. Cart ---- */
.cart-layout { display: grid; grid-template-columns: 1fr 360px; gap: 40px; align-items: start; }
.cart-items-section { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.cart-items-header { padding: 20px 24px; border-bottom: 1px solid var(--border); }
.cart-items-header h3 { font-family: var(--font-display); font-weight: 700; }
.cart-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.cart-item:last-child { border-bottom: none; }
.cart-item:hover { background: var(--surface); }
.cart-item-img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
  overflow: hidden;
}
.cart-item-img img { width: 100%; height: 100%; object-fit: cover; }
.cart-item-info { flex: 1; }
.cart-item-name { font-family: var(--font-display); font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.cart-item-category { font-size: 0.8rem; color: var(--text-faint); }
.cart-item-price { font-family: var(--font-display); font-weight: 700; font-size: 1rem; margin-top: 8px; }
.cart-item-actions { display: flex; align-items: center; gap: 12px; }
.cart-item-remove { color: var(--text-faint); font-size: 0.8rem; padding: 4px; transition: color var(--transition); }
.cart-item-remove:hover { color: var(--secondary); }

.cart-summary {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.cart-summary h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; margin-bottom: 24px; }
.summary-row { display: flex; justify-content: space-between; font-size: 0.9rem; color: var(--text-muted); margin-bottom: 12px; }
.summary-row.total { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--text); border-top: 1px solid var(--border); padding-top: 12px; margin-top: 4px; }
.checkout-btn { width: 100%; justify-content: center; margin-top: 20px; }
.cart-empty-state { text-align: center; padding: 80px 0; }

/* ---- 21. About ---- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
.about-text .section-title { text-align: left; }
.about-p { color: var(--text-muted); font-size: 0.97rem; line-height: 1.85; margin-bottom: 16px; }
.about-img-placeholder {
  aspect-ratio: 4/3;
  background: var(--bg-card);
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  font-size: 0.9rem;
}
.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.about-value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition);
}
.about-value-card:hover { transform: translateY(-4px); border-color: var(--primary); }
.value-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}
.about-value-card h3 { font-family: var(--font-display); font-weight: 700; margin-bottom: 10px; }
.about-value-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

/* ---- 22. Toast ---- */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 16px 24px;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition);
  pointer-events: none;
  max-width: 320px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--error); }

/* ---- 23. Animations ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---- 24. Responsive ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .shop-layout { grid-template-columns: 240px 1fr; }
  .product-detail-layout { gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .hero-stats { gap: 20px; }
  .stat-divider { display: none; }
  .promo-content { flex-direction: column; text-align: center; }
  .promo-visual { width: 200px; height: 200px; }
  .newsletter-card { padding: 36px 24px; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .shop-layout { grid-template-columns: 1fr; }
  .shop-sidebar {
    display: none;
    position: fixed;
    inset: 0;
    top: var(--header-h);
    z-index: 900;
    border-radius: 0;
    overflow-y: auto;
    padding-bottom: 100px;
  }
  .shop-sidebar.mobile-open { display: block; }
  .mobile-filter-btn { display: flex; }
  .product-detail-layout { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .about-values { grid-template-columns: 1fr; }
  .cart-layout { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; align-items: center; }
  .product-cta { flex-direction: column; }
  .newsletter-form { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ---- 25. Social Proof Popup ---- */
#social-proof-container {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}
.social-proof-popup {
  position: relative;
  background: rgba(26,26,46,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(108,71,255,0.4);
  border-radius: var(--radius);
  padding: 16px 20px;
  width: 320px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4), 0 0 20px rgba(108,71,255,0.15);
  transform: translateX(-120%);
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: auto;
}
.social-proof-popup.show {
  transform: translateX(0);
  opacity: 1;
}
.social-proof-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}
.social-proof-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
}
.social-proof-stars {
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 1px;
}
.social-proof-message {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 12px;
}
.social-proof-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}
.social-proof-time {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-muted);
}
.social-proof-verified {
  color: var(--success);
  font-weight: 600;
}
.social-proof-close {
  position: absolute;
  top: 8px;
  right: 12px;
  color: var(--text-faint);
  font-size: 1.2rem;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color 0.2s;
}
.social-proof-close:hover {
  color: #fff;
}
@media (max-width: 480px) {
  #social-proof-container {
    bottom: unset;
    top: 24px;
    left: 16px;
    right: 16px;
  }
  .social-proof-popup {
    width: 100%;
    transform: translateY(-120%);
  }
  .social-proof-popup.show {
    transform: translateY(0);
  }
}