/* ============================================
   W STYLE — Components
   Header, Footer, Product Cards, etc.
============================================ */

/* ============================================
   Utility Bar
============================================ */
.utility-bar {
  background: var(--gray-50);
  border-bottom: var(--border);
  padding: 8px 0;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
}
.utility-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.utility-bar-left { color: var(--gray-500); }
.utility-bar-right { display: flex; align-items: center; gap: var(--sp-6); }
.utility-bar-right a {
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  transition: color var(--dur-fast) var(--ease);
}
.utility-bar-right a:hover { color: var(--black); }
.cart-link { display: flex; align-items: center; gap: var(--sp-2); }
.cart-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  background: var(--black);
  color: var(--white);
  font-size: 10px;
  font-weight: 600;
  padding: 0 4px;
}
.cart-badge.has-items { background: var(--accent-dark); }

/* ============================================
   Site Header
============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: var(--border);
  transition: box-shadow var(--dur-base) var(--ease);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }
.header-inner {
  display: flex;
  align-items: center;
  height: 68px;
}
.site-logo { flex-shrink: 0; margin-right: var(--sp-8); }
.site-logo a {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--black);
  white-space: nowrap;
}
.main-nav { display: flex; align-items: center; gap: 0; flex: 1; }
.main-nav a {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-600);
  padding: 8px 12px;
  position: relative;
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease);
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 12px;
  right: 12px;
  height: 1px;
  background: var(--black);
  transform: scaleX(0);
  transition: transform var(--dur-base) var(--ease);
}
.main-nav a:hover, .main-nav a.active { color: var(--black); }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: var(--sp-4); margin-left: auto; flex-shrink: 0; }
.header-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--gray-600);
  transition: color var(--dur-fast) var(--ease);
  cursor: pointer;
}
.header-icon-btn:hover { color: var(--black); }
.header-icon-btn svg { width: 20px; height: 20px; stroke-width: 1.5; }
.header-cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  background: var(--black);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  padding: 0 4px;
  margin-left: 4px;
}

/* Mobile */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--black);
  transition: all var(--dur-base) var(--ease);
}
.mobile-menu-btn.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.mobile-menu-btn.open span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Search Drawer */
.search-drawer {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: var(--white);
  z-index: 1100;
  padding: var(--sp-5) var(--container-pad);
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  border-bottom: var(--border-mid);
  transform: translateY(-100%);
  transition: transform var(--dur-base) var(--ease);
  box-shadow: var(--shadow-md);
}
.search-drawer.open { transform: translateY(0); }
.search-drawer-input {
  flex: 1; border: none;
  border-bottom: var(--border-mid);
  padding: 8px 0;
  font-size: var(--text-lg);
  outline: none;
  background: transparent;
}
.search-drawer-input::placeholder { color: var(--gray-300); }
.search-drawer-close {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: var(--gray-500);
  cursor: pointer;
}
.search-drawer-close:hover { color: var(--black); }

/* Mobile Nav */
.mobile-nav-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 1150;
  opacity: 0; pointer-events: none;
  transition: opacity var(--dur-base) var(--ease);
}
.mobile-nav-overlay.open { opacity: 1; pointer-events: auto; }
.mobile-nav-drawer {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 300px;
  background: var(--white);
  z-index: 1200;
  transform: translateX(-100%);
  transition: transform var(--dur-slow) var(--ease);
  overflow-y: auto;
  border-right: var(--border);
}
.mobile-nav-drawer.open { transform: translateX(0); }
.mobile-nav-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--sp-5) var(--sp-6);
  border-bottom: var(--border);
}
.mobile-nav-logo { font-family: var(--font-serif); font-size: 1.2rem; letter-spacing: 0.3em; text-transform: uppercase; }
.mobile-nav-close { font-size: 1.5rem; color: var(--gray-500); cursor: pointer; line-height: 1; }
.mobile-nav-links {}
.mobile-nav-links a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px var(--sp-6);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-700);
  border-bottom: var(--border);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.mobile-nav-links a:hover { color: var(--black); background: var(--gray-50); }
.mobile-nav-util { padding: var(--sp-5) var(--sp-6); display: flex; flex-direction: column; gap: var(--sp-1); border-top: var(--border); }
.mobile-nav-util a { font-size: var(--text-xs); color: var(--gray-500); padding: 8px 0; letter-spacing: 0.08em; }
.mobile-nav-util a:hover { color: var(--black); }

/* ============================================
   Hero
============================================ */
.hero { position: relative; overflow: hidden; }
.hero-full { height: calc(100vh - 68px); min-height: 600px; }
.hero-half { height: 60vh; min-height: 400px; }
.hero-img { width: 100%; height: 100%; object-fit: cover; object-position: center 20%; transition: transform 0.8s var(--ease); }
.hero:hover .hero-img { transform: scale(1.02); }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(0,0,0,0.38) 0%, rgba(0,0,0,0.05) 65%); }
.hero-content {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: center;
  padding: 0 var(--sp-20);
  color: var(--white);
}
.hero-eyebrow { font-size: var(--text-xs); letter-spacing: 0.3em; text-transform: uppercase; margin-bottom: var(--sp-4); opacity: 0.85; }
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 5rem);
  font-weight: 300; line-height: 1.1;
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-5);
}
.hero-subtitle { font-size: var(--text-base); opacity: 0.85; max-width: 380px; line-height: 1.7; margin-bottom: var(--sp-8); }

/* ============================================
   Product Card
============================================ */
.product-card { position: relative; cursor: pointer; }
.product-card-img-wrap {
  position: relative; overflow: hidden; background: var(--gray-100); aspect-ratio: 3/4;
}
.product-card-img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.product-card:hover .product-card-img { transform: scale(1.05); }
.product-card-badges { position: absolute; top: var(--sp-3); left: var(--sp-3); display: flex; flex-direction: column; gap: var(--sp-1); }
.product-card-wish {
  position: absolute; top: var(--sp-3); right: var(--sp-3);
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.85);
  color: var(--gray-400);
  transition: all var(--dur-fast) var(--ease);
  opacity: 0; cursor: pointer;
}
.product-card:hover .product-card-wish { opacity: 1; }
.product-card-wish:hover { color: var(--error); background: var(--white); }
.product-card-wish.wished { opacity: 1; color: var(--error); }
.product-card-wish svg { width: 16px; height: 16px; }
.product-card-quick {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: rgba(28,28,28,0.88);
  color: var(--white);
  font-size: var(--text-xs); font-weight: 500;
  letter-spacing: 0.15em; text-transform: uppercase;
  padding: 12px; text-align: center;
  transform: translateY(100%);
  transition: transform var(--dur-base) var(--ease);
}
.product-card:hover .product-card-quick { transform: translateY(0); }
.product-card-info { padding: var(--sp-3) 0 var(--sp-4); text-align: center; }
.product-card-name { font-size: var(--text-sm); color: var(--gray-800); margin-bottom: var(--sp-1); line-height: 1.4; }
.product-card-name-en { font-size: var(--text-xs); color: var(--gray-400); letter-spacing: 0.05em; margin-bottom: var(--sp-2); }
.product-card-colors { display: flex; gap: 6px; justify-content: center; margin-bottom: var(--sp-2); }
.color-dot { width: 10px; height: 10px; border-radius: 50%; border: 1px solid var(--gray-300); }
.product-card-price { display: flex; align-items: center; justify-content: center; gap: var(--sp-2); }
.price-current { font-size: var(--text-sm); font-weight: 500; color: var(--black); }
.price-original { font-size: var(--text-xs); color: var(--gray-400); text-decoration: line-through; }
.price-sale { color: var(--error); }

/* ============================================
   Category Banners
============================================ */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-4); }
.category-card { position: relative; overflow: hidden; aspect-ratio: 3/4; cursor: pointer; display: block; }
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.category-card:hover img { transform: scale(1.06); }
.category-card-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, transparent 55%); }
.category-card-label { position: absolute; bottom: var(--sp-6); left: var(--sp-6); color: var(--white); }
.category-card-label-en { font-family: var(--font-serif); font-size: var(--text-xl); font-weight: 300; letter-spacing: 0.15em; text-transform: uppercase; display: block; }
.category-card-label-zh { font-size: var(--text-xs); letter-spacing: 0.15em; opacity: 0.85; display: block; margin-top: 4px; }

/* ============================================
   Shop Page
============================================ */
.shop-layout { display: grid; grid-template-columns: 200px 1fr; gap: var(--sp-10); align-items: start; }
.shop-sidebar { position: sticky; top: calc(68px + var(--sp-6)); }
.filter-section { margin-bottom: var(--sp-6); }
.filter-title { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray-700); margin-bottom: var(--sp-3); padding-bottom: var(--sp-3); border-bottom: var(--border); }
.filter-option { display: flex; align-items: center; justify-content: space-between; font-size: var(--text-sm); color: var(--gray-600); cursor: pointer; padding: 5px 0; transition: color var(--dur-fast) var(--ease); }
.filter-option:hover, .filter-option.active { color: var(--black); }
.filter-option.active { font-weight: 500; }
.filter-count { font-size: var(--text-xs); color: var(--gray-400); }
.shop-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--sp-6); padding-bottom: var(--sp-4); border-bottom: var(--border); }
.shop-total { font-size: var(--text-sm); color: var(--gray-500); }
.sort-select { border: var(--border-mid); padding: 6px 10px; font-size: var(--text-xs); cursor: pointer; background: var(--white); }
.category-pills { display: flex; gap: var(--sp-2); overflow-x: auto; padding-bottom: var(--sp-2); scrollbar-width: none; margin-bottom: var(--sp-6); }
.category-pills::-webkit-scrollbar { display: none; }
.category-pill {
  flex-shrink: 0; padding: 7px 16px;
  border: var(--border-mid);
  font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--gray-600); cursor: pointer;
  transition: all var(--dur-fast) var(--ease); white-space: nowrap;
}
.category-pill:hover { border-color: var(--black); color: var(--black); }
.category-pill.active { background: var(--black); color: var(--white); border-color: var(--black); }

/* ============================================
   Product Detail
============================================ */
.product-detail-layout { display: grid; grid-template-columns: 1fr 400px; gap: var(--sp-16); align-items: start; }
.product-gallery { display: grid; gap: var(--sp-3); }
.product-gallery-main { aspect-ratio: 3/4; overflow: hidden; background: var(--gray-100); }
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.product-info-sticky { position: sticky; top: calc(68px + var(--sp-6)); }
.product-name { font-size: var(--text-2xl); font-weight: 400; letter-spacing: 0.03em; margin-bottom: var(--sp-1); }
.product-name-en { font-size: var(--text-sm); color: var(--gray-400); letter-spacing: 0.08em; margin-bottom: var(--sp-5); }
.product-price-wrap { display: flex; align-items: baseline; gap: var(--sp-3); margin-bottom: var(--sp-6); }
.product-price { font-size: var(--text-xl); font-weight: 500; }
.product-price-original { font-size: var(--text-base); color: var(--gray-400); text-decoration: line-through; }
.product-price-sale { color: var(--error); }
.option-label { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gray-700); margin-bottom: var(--sp-3); display: flex; justify-content: space-between; align-items: center; }
.color-selector { display: flex; gap: var(--sp-3); margin-bottom: var(--sp-6); }
.color-swatch {
  width: 28px; height: 28px; border-radius: 50%; cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--dur-fast) var(--ease);
  outline: 2px solid transparent;
  outline-offset: 3px;
}
.color-swatch.active { outline-color: var(--gray-500); }
.size-selector { display: flex; gap: var(--sp-2); flex-wrap: wrap; margin-bottom: var(--sp-6); }
.size-btn {
  min-width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  border: var(--border-mid);
  font-size: var(--text-xs); font-weight: 500; letter-spacing: 0.05em;
  cursor: pointer; padding: 0 var(--sp-3);
  transition: all var(--dur-fast) var(--ease);
}
.size-btn:hover { border-color: var(--black); color: var(--black); }
.size-btn.active { background: var(--black); color: var(--white); border-color: var(--black); }
.size-btn.out { opacity: 0.35; cursor: not-allowed; text-decoration: line-through; }
.product-cta { display: flex; flex-direction: column; gap: var(--sp-3); margin-bottom: var(--sp-8); }
.product-desc { font-size: var(--text-sm); line-height: 1.85; color: var(--gray-600); margin-bottom: var(--sp-6); }
.product-detail-list { border-top: var(--border); }
.product-detail-item { display: flex; justify-content: space-between; padding: var(--sp-3) 0; font-size: var(--text-xs); border-bottom: var(--border); color: var(--gray-600); }

/* ============================================
   Cart
============================================ */
.cart-layout { display: grid; grid-template-columns: 1fr 320px; gap: var(--sp-12); align-items: start; }
.cart-item { display: grid; grid-template-columns: 96px 1fr; gap: var(--sp-5); padding: var(--sp-6) 0; border-bottom: var(--border); }
.cart-item-img { aspect-ratio: 3/4; object-fit: cover; background: var(--gray-100); width: 96px; }
.cart-item-name { font-size: var(--text-sm); font-weight: 500; margin-bottom: var(--sp-1); }
.cart-item-variant { font-size: var(--text-xs); color: var(--gray-500); margin-bottom: var(--sp-4); }
.cart-item-controls { display: flex; align-items: center; justify-content: space-between; }
.qty-control { display: flex; align-items: center; border: var(--border-mid); }
.qty-btn { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; font-size: 1rem; color: var(--gray-600); transition: all var(--dur-fast) var(--ease); cursor: pointer; }
.qty-btn:hover { background: var(--gray-100); color: var(--black); }
.qty-num { width: 36px; text-align: center; font-size: var(--text-sm); border-left: var(--border-mid); border-right: var(--border-mid); line-height: 32px; }
.cart-item-price { font-size: var(--text-sm); font-weight: 500; }
.cart-item-remove { font-size: var(--text-xs); color: var(--gray-400); text-decoration: underline; cursor: pointer; margin-top: var(--sp-2); display: inline-block; }
.cart-item-remove:hover { color: var(--error); }
.cart-summary { background: var(--gray-50); padding: var(--sp-8); position: sticky; top: calc(68px + var(--sp-6)); }
.cart-summary-title { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: var(--sp-6); }
.cart-summary-row { display: flex; justify-content: space-between; font-size: var(--text-sm); padding: var(--sp-3) 0; border-bottom: var(--border); color: var(--gray-700); }
.cart-summary-total { display: flex; justify-content: space-between; font-size: var(--text-md); font-weight: 600; padding: var(--sp-4) 0; border-top: var(--border-mid); margin-top: var(--sp-4); }
.cart-coupon { display: flex; gap: var(--sp-2); margin: var(--sp-5) 0; }
.cart-coupon .form-input { flex: 1; }

/* ============================================
   Auth Pages
============================================ */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: var(--sp-12) var(--sp-6); background: var(--gray-50); }
.auth-card { background: var(--white); padding: var(--sp-10) var(--sp-12); width: 100%; max-width: 440px; }
.auth-logo { font-family: var(--font-serif); font-size: 1.4rem; letter-spacing: 0.35em; text-transform: uppercase; text-align: center; margin-bottom: var(--sp-8); color: var(--black); display: block; }
.auth-title { font-size: var(--text-xl); font-weight: 400; letter-spacing: 0.03em; text-align: center; margin-bottom: var(--sp-2); }
.auth-subtitle { font-size: var(--text-xs); color: var(--gray-500); text-align: center; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: var(--sp-8); }
.auth-form { display: flex; flex-direction: column; gap: var(--sp-4); }
.auth-footer { text-align: center; margin-top: var(--sp-5); font-size: var(--text-xs); color: var(--gray-500); }
.auth-footer a { color: var(--black); text-decoration: underline; }

/* ============================================
   Member Center
============================================ */
.member-layout { display: grid; grid-template-columns: 200px 1fr; gap: var(--sp-10); align-items: start; }
.member-sidebar { position: sticky; top: calc(68px + var(--sp-6)); }
.member-nav-item { display: block; padding: 12px 0; font-size: var(--text-sm); color: var(--gray-600); border-bottom: var(--border); letter-spacing: 0.03em; transition: color var(--dur-fast) var(--ease); }
.member-nav-item:hover { color: var(--black); }
.member-nav-item.active { color: var(--black); font-weight: 500; }
.member-welcome { margin-bottom: var(--sp-8); padding-bottom: var(--sp-6); border-bottom: var(--border); }
.member-welcome h2 { font-family: var(--font-serif); font-size: var(--text-2xl); font-weight: 300; }
.order-card { border: var(--border); padding: var(--sp-6); margin-bottom: var(--sp-4); }
.order-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--sp-4); padding-bottom: var(--sp-4); border-bottom: var(--border); }
.order-status { font-size: var(--text-xs); padding: 4px 12px; background: var(--gray-100); letter-spacing: 0.1em; text-transform: uppercase; }
.order-status.completed { background: #D4EDDA; color: var(--success); }
.order-status.shipped { background: var(--accent-light); color: var(--accent-dark); }

/* ============================================
   About Page
============================================ */
.about-hero { position: relative; height: 70vh; min-height: 500px; overflow: hidden; }
.about-hero img { width: 100%; height: 100%; object-fit: cover; }
.about-hero-text { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: rgba(0,0,0,0.25); color: var(--white); }
.about-text-section { max-width: 680px; margin: 0 auto; text-align: center; }
.about-text-section p { font-size: var(--text-md); line-height: 2; color: var(--gray-600); margin-bottom: var(--sp-6); }

/* ============================================
   Footer
============================================ */
.site-footer { background: var(--black); color: rgba(255,255,255,0.65); padding: var(--sp-16) 0 var(--sp-8); margin-top: var(--sp-20); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--sp-10); margin-bottom: var(--sp-12); }
.footer-brand .logo-text { font-family: var(--font-serif); font-size: 1.4rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--white); display: block; margin-bottom: var(--sp-4); }
.footer-desc { font-size: var(--text-xs); line-height: 2; max-width: 260px; }
.footer-heading { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--white); margin-bottom: var(--sp-4); }
.footer-links { display: flex; flex-direction: column; gap: var(--sp-2); }
.footer-links a { font-size: var(--text-xs); color: rgba(255,255,255,0.55); transition: color var(--dur-fast) var(--ease); letter-spacing: 0.05em; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: var(--sp-6); border-top: 1px solid rgba(255,255,255,0.1); font-size: var(--text-xs); color: rgba(255,255,255,0.35); }

/* ============================================
   Misc
============================================ */
.empty-state { text-align: center; padding: var(--sp-24) var(--sp-6); }
.empty-state-icon { font-size: 3rem; margin-bottom: var(--sp-5); opacity: 0.3; }
.empty-state-title { font-family: var(--font-serif); font-size: var(--text-2xl); font-weight: 300; margin-bottom: var(--sp-3); }
.empty-state-text { font-size: var(--text-sm); color: var(--gray-500); margin-bottom: var(--sp-8); }

.breadcrumb { display: flex; align-items: center; gap: var(--sp-2); font-size: var(--text-xs); color: var(--gray-400); letter-spacing: 0.08em; margin-bottom: var(--sp-6); }
.breadcrumb a:hover { color: var(--black); }
.breadcrumb-sep { opacity: 0.5; }

.page-header { padding: var(--sp-12) 0 var(--sp-8); border-bottom: var(--border); margin-bottom: var(--sp-10); }
.page-header-title { font-family: var(--font-serif); font-size: var(--text-3xl); font-weight: 300; letter-spacing: 0.08em; text-transform: uppercase; }

/* ============================================
   Responsive
============================================ */
@media (max-width: 1100px) {
  .product-detail-layout { grid-template-columns: 1fr 360px; gap: var(--sp-10); }
  .cart-layout { grid-template-columns: 1fr 280px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-8); }
}
@media (max-width: 900px) {
  .shop-layout { grid-template-columns: 1fr; }
  .shop-sidebar { display: none; }
  .product-detail-layout { grid-template-columns: 1fr; }
  .product-info-sticky { position: static; }
  .cart-layout { grid-template-columns: 1fr; }
  .cart-summary { position: static; }
  .member-layout { grid-template-columns: 1fr; }
  .member-sidebar { position: static; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-full { height: 75vw; }
  .hero-content { padding: 0 var(--sp-8); }
  .main-nav { display: none; }
  .mobile-menu-btn { display: flex; }
  .site-logo { margin-right: auto; }
  .header-actions .header-icon-btn:not([data-role="cart"]):not([data-role="search"]) { display: none; }
}
@media (max-width: 600px) {
  .auth-card { padding: var(--sp-8) var(--sp-5); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-6); }
  .footer-bottom { flex-direction: column; gap: var(--sp-3); text-align: center; }
  .hero-content { padding: 0 var(--sp-5); }
  .hero-title { font-size: 2rem; }
  .cart-item { grid-template-columns: 80px 1fr; }
  .cart-item-img { width: 80px; }
}