:root {
  --bg: #faf9f6;
  --surface: #ffffff;
  --text: #1a1a1a;
  --text-muted: #6b6b6b;
  --border: #e8e6e0;
  --accent: #1a1a1a;
  --accent-hover: #333;
  --radius: 8px;
  --shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --max-width: 1200px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Georgia", "Times New Roman", serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 249, 246, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.logo span {
  color: var(--text-muted);
}

.main-nav {
  display: flex;
  gap: 32px;
}

.main-nav a {
  font-size: 14px;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  transition: color 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.cart-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
}

.cart-count {
  position: absolute;
  top: -8px;
  right: -10px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

.lang-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 13px;
  letter-spacing: 0.5px;
  padding: 6px 12px;
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.lang-toggle:hover {
  border-color: var(--text);
  color: var(--text);
}

.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  display: flex;
  align-items: center;
  padding: 4px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 64px;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 500;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.btn:hover {
  background: var(--accent-hover);
}

.btn:active {
  transform: scale(0.98);
}

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

.btn-outline:hover {
  background: var(--surface);
  border-color: var(--text);
}

/* ---------- Section ---------- */
.section {
  padding: 56px 0;
}

.section-head {
  margin-bottom: 36px;
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 500;
  margin-bottom: 8px;
}

.section-head h3 {
  font-family: var(--font-serif);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.section-head p {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 520px;
}

.section-link {
  font-size: 14px;
  color: var(--text);
  border-bottom: 1px solid var(--text);
  padding-bottom: 2px;
  display: inline-block;
  margin-top: 16px;
  transition: opacity 0.2s;
}

.section-link:hover {
  opacity: 0.6;
}

/* ---------- Product Grid ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.product-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform 0.25s, box-shadow 0.25s;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-thumb {
  aspect-ratio: 1 / 1;
  background: #f0eee9;
  overflow: hidden;
  position: relative;
}

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

.product-card:hover .product-thumb img {
  transform: scale(1.05);
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.9);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
}

.product-info {
  padding: 18px 18px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-cat {
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.product-name {
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 4px;
}

.product-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 14px;
  flex: 1;
}

.product-price {
  font-size: 16px;
  font-weight: 600;
}

/* ---------- Category Filters ---------- */
.filter-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 9px 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 30px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-muted);
}

.filter-btn:hover {
  border-color: var(--text);
  color: var(--text);
}

.filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ---------- Newsletter ---------- */
.newsletter {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 72px 0;
  text-align: center;
}

.newsletter h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 500;
  margin-bottom: 12px;
}

.newsletter p {
  color: var(--text-muted);
  max-width: 460px;
  margin: 0 auto 28px;
}

.newsletter-form {
  display: flex;
  gap: 10px;
  max-width: 440px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 13px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  background: var(--bg);
  outline: none;
}

.newsletter-form input:focus {
  border-color: var(--text);
}

/* ---------- Footer ---------- */
.site-footer {
  padding: 56px 0 32px;
  background: var(--surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-grid h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  color: var(--text);
}

.footer-grid a {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 10px;
  transition: color 0.2s;
}

.footer-grid a:hover {
  color: var(--text);
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 280px;
  margin-top: 12px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- Product Detail ---------- */
.breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  padding: 24px 0;
}

.breadcrumb a:hover {
  color: var(--text);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  padding-bottom: 64px;
}

.detail-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.detail-gallery .main-img {
  grid-column: span 2;
  aspect-ratio: 4 / 3;
  background: #f0eee9;
  border-radius: var(--radius);
  overflow: hidden;
}

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

.detail-gallery .sub-img {
  aspect-ratio: 1 / 1;
  background: #f0eee9;
  border-radius: var(--radius);
  overflow: hidden;
}

.detail-info h1 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 500;
  margin-bottom: 12px;
}

.detail-info .price {
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 8px;
}

.detail-info .category {
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.detail-info .desc {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 15px;
}

.option-group {
  margin-bottom: 24px;
}

.option-group label {
  display: block;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
  color: var(--text-muted);
}

.option-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.option-chip {
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
  background: var(--surface);
}

.option-chip:hover {
  border-color: var(--text);
}

.option-chip.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.qty-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.qty-control {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.qty-control button {
  width: 42px;
  height: 42px;
  border: none;
  background: var(--surface);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qty-control button:hover {
  background: var(--bg);
}

.qty-control input {
  width: 50px;
  height: 42px;
  text-align: center;
  border: none;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  font-size: 16px;
  outline: none;
}

.detail-actions {
  display: flex;
  gap: 12px;
}

.detail-extra {
  margin-top: 32px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 14px;
  color: var(--text-muted);
}

/* ---------- Cart ---------- */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  padding-bottom: 64px;
}

.cart-item {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.cart-item-img {
  width: 100px;
  height: 100px;
  background: #f0eee9;
  border-radius: var(--radius);
  overflow: hidden;
}

.cart-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-info h3 {
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 4px;
}

.cart-item-info .meta {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.cart-item-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cart-item-price {
  font-size: 17px;
  font-weight: 600;
  white-space: nowrap;
}

.remove-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  text-decoration: underline;
}

.remove-btn:hover {
  color: var(--text);
}

.summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: sticky;
  top: 96px;
  height: fit-content;
}

.summary-card h2 {
  font-family: var(--font-serif);
  font-size: 22px;
  margin-bottom: 20px;
}

.summary-line {
  display: flex;
  justify-content: space-between;
  font-size: 15px;
  margin-bottom: 14px;
  color: var(--text-muted);
}

.summary-line.total {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 4px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.empty-state {
  text-align: center;
  padding: 80px 0;
  color: var(--text-muted);
}

.empty-state h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--text);
  margin-bottom: 12px;
}

/* ---------- Checkout ---------- */
.checkout-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  padding-bottom: 64px;
}

.form-section {
  margin-bottom: 32px;
}

.form-section h2 {
  font-family: var(--font-serif);
  font-size: 22px;
  margin-bottom: 18px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: inherit;
  background: var(--surface);
  outline: none;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--text);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--accent);
  color: #fff;
  padding: 14px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .detail-grid,
  .cart-layout,
  .checkout-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .summary-card {
    position: static;
  }
  .hero h1 {
    font-size: 38px;
  }
}

@media (max-width: 560px) {
  .main-nav {
    display: none;
  }
  .product-grid {
    grid-template-columns: 1fr;
  }
  .newsletter-form {
    flex-direction: column;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}