:root {
  --color-bg: #faf8f5;
  --color-surface: #ffffff;
  --color-text: #221f1c;
  --color-text-muted: #6b6459;
  --color-border: #e6e1d8;
  --color-accent: #a6572c;
  --color-accent-hover: #8a481f;
  --color-danger: #b3382c;
  --radius: 6px;
  --max-width: 1120px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

a { color: inherit; }

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

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--color-text);
}

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

.cart-count {
  background: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 999px;
  min-width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

/* Hero */
.hero {
  padding: 64px 24px;
  text-align: center;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.hero h1 {
  font-size: 2.25rem;
  margin: 0 0 12px;
}

.hero p {
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* Product grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 24px;
  padding: 40px 24px;
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.product-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

.product-image-link {
  display: block;
  width: 100%;
}

.product-name-link {
  text-decoration: none;
  color: inherit;
}

.product-name-link:hover {
  text-decoration: underline;
}

.back-link {
  display: inline-block;
  margin: 24px 0 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-decoration: none;
}

.back-link:hover {
  text-decoration: underline;
}

/* Product detail page */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 40px;
  padding: 40px 24px;
  align-items: start;
}

@media (max-width: 800px) {
  .product-detail { grid-template-columns: 1fr; }
}

.product-detail-image-btn {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: zoom-in;
}

.product-detail-image-btn img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}

.thumbnail-row {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.thumbnail-btn {
  width: 64px;
  height: 64px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: none;
  flex-shrink: 0;
}

.thumbnail-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.thumbnail-btn.active {
  border-color: var(--color-accent);
}

.product-detail-info h1 {
  margin: 8px 0;
  font-size: 1.75rem;
}

.product-detail-info .price {
  font-size: 1.3rem;
  font-weight: 700;
}

.product-detail-info .stock {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 8px 0 20px;
}

.product-detail-info .description {
  line-height: 1.7;
  margin-bottom: 24px;
}

/* Lightbox */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 17, 14, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 40px;
}

.lightbox-figure {
  margin: 0;
  max-width: min(90vw, 700px);
  text-align: center;
}

.lightbox-figure img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius);
  display: block;
}

.lightbox-figure figcaption {
  color: #fff;
  margin-top: 12px;
  font-size: 0.95rem;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 28px;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}

.product-card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.product-card-body h3 {
  margin: 0;
  font-size: 1rem;
}

.product-card-body .category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.product-card-body .price {
  font-weight: 700;
  margin-top: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

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

.btn-secondary {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover { border-color: var(--color-accent); }

.btn-block { width: 100%; }

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Cart page */
.cart-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.cart-table th, .cart-table td {
  text-align: left;
  padding: 12px 8px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.cart-item-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cart-item-info img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: var(--radius);
}

.qty-input {
  width: 56px;
  padding: 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.remove-link {
  color: var(--color-danger);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0;
}

.cart-summary {
  max-width: 320px;
  margin-left: auto;
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.cart-summary .row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.cart-summary .total {
  font-weight: 700;
  font-size: 1.1rem;
  border-top: 1px solid var(--color-border);
  padding-top: 8px;
  margin-top: 8px;
}

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

/* Checkout form */
.checkout-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  padding: 40px 24px;
  align-items: start;
}

@media (max-width: 800px) {
  .checkout-layout { grid-template-columns: 1fr; }
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
}

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

.image-field-row {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.image-field-main {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.image-field-row .image-label-input {
  flex: 0 0 130px;
}

.image-field-row .image-file-input {
  flex: 0 0 170px;
  font-size: 0.8rem;
}

.image-field-row .image-url-input {
  flex: 1 1 200px;
}

.image-field-preview {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  min-height: 44px;
}

.image-thumb {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.upload-status {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.order-summary-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}

.order-summary-list li {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.notice {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.notice-info {
  background: #f0ede6;
  color: var(--color-text-muted);
}

.notice-error {
  background: #fbe9e7;
  color: var(--color-danger);
}

.notice-success {
  background: #e9f3ea;
  color: #2d6a30;
}

/* Confirmation page */
.confirmation {
  text-align: center;
  padding: 80px 24px;
}

.confirmation h1 {
  margin-bottom: 8px;
}

.order-id {
  display: inline-block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 16px;
  font-family: monospace;
  margin: 16px 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 24px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}