/* Siprolla — commerce.css
   Styles for shop.html, product.html, cart.html, checkout.html.
   Load after styles.css. Static preview only. */

/* ---------- Shared tokens (fallback if styles.css lacks them) ---------- */
:root {
  --c-base: #F4F1EA;
  --c-ink: #1F2A30;
  --c-accent: #C4552F;
  --c-secondary: #5B7C8D;
  --c-line: #D8D2C6;
  --c-white: #FFFFFF;
  --c-muted: #5C666B;
  --radius: 10px;
  --radius-sm: 6px;
  --gap: 20px;
  --pad-section: 42px;
  --shadow: 0 1px 2px rgba(31,42,48,.06), 0 6px 18px rgba(31,42,48,.05);
}

/* ---------- Base helpers ---------- */
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.commerce-page { background: var(--c-base); color: var(--c-ink); }
.commerce-page .wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.page-title { font-size: clamp(1.6rem, 3.4vw, 2.2rem); margin: 8px 0 6px; }
.page-lede { max-width: 62ch; color: var(--c-muted); margin: 0 0 24px; }
.section-h { font-size: 1.15rem; margin: 0 0 14px; }
.breadcrumb { font-size: .85rem; color: var(--c-muted); margin: 18px 0 10px; }
.breadcrumb a { color: var(--c-secondary); text-decoration: none; }
.breadcrumb a:hover, .breadcrumb a:focus-visible { text-decoration: underline; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; min-height: 44px; padding: 10px 18px;
  font: inherit; font-weight: 600; line-height: 1.2;
  border-radius: var(--radius-sm); border: 1px solid transparent;
  cursor: pointer; text-decoration: none; transition: background .15s, color .15s, border-color .15s;
}
.btn--primary { background: var(--c-accent); color: #fff; }
.btn--primary:hover, .btn--primary:focus-visible { background: #a8461f; }
.btn--ghost { background: transparent; color: var(--c-ink); border-color: var(--c-line); }
.btn--ghost:hover, .btn--ghost:focus-visible { border-color: var(--c-ink); }
.btn--block { width: 100%; }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, button:focus-visible {
  outline: 2px solid var(--c-secondary); outline-offset: 2px;
}

/* ---------- Preview banners ---------- */
.preview-banner {
  margin: 16px 0; padding: 10px 14px;
  background: #FBF3EE; border: 1px solid #E7CDBE; border-left: 4px solid var(--c-accent);
  border-radius: var(--radius-sm); font-size: .9rem; color: #6B3A22;
}
.preview-banner--strong { background: #FCE9E1; font-weight: 600; }

/* ---------- Product cards (shared) ---------- */
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap);
}
.card {
  display: flex; flex-direction: column;
  background: var(--c-white); border: 1px solid var(--c-line);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.card__media {
  display: block; aspect-ratio: 4 / 5; background: #fff;
  padding: 10px; box-sizing: border-box;
}
.card__media img {
  width: 100%; height: 100%; object-fit: contain; display: block;
}
.card__body { padding: 12px 14px 16px; display: flex; flex-direction: column; gap: 6px; }
.card__name { font-size: .95rem; line-height: 1.35; margin: 0; }
.card__name a { color: var(--c-ink); text-decoration: none; }
.card__name a:hover, .card__name a:focus-visible { color: var(--c-accent); }
.card__cat { font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--c-secondary); margin: 0; }
.card__price { font-size: .9rem; font-weight: 600; color: var(--c-ink); margin-top: auto; }

/* ---------- Shop page ---------- */
.shop-intro { max-width: 1180px; margin: 0 auto; padding: 28px 20px 8px; }
.shop-intro h1 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); margin: 0 0 8px; }
.shop-intro p { max-width: 68ch; color: var(--c-muted); margin: 0; }
.shop-layout {
  max-width: 1180px; margin: 0 auto; padding: 24px 20px var(--pad-section);
  display: grid; grid-template-columns: 240px 1fr; gap: 28px; align-items: start;
}
.shop-filters { position: sticky; top: 16px; }
.shop-filters__toggle { display: none; }
.shop-filters__panel { display: flex; flex-direction: column; gap: 18px; }
.shop-filters fieldset { border: 0; padding: 0; margin: 0; }
.shop-filters legend { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--c-secondary); margin-bottom: 8px; }
.shop-filters label { display: flex; align-items: center; gap: 8px; font-size: .9rem; padding: 3px 0; cursor: pointer; }
.shop-filters__search { flex-direction: column; align-items: stretch; gap: 6px; font-size: .85rem; }
.shop-filters__search input { min-height: 40px; padding: 8px 10px; border: 1px solid var(--c-line); border-radius: var(--radius-sm); font: inherit; background: #fff; }
.shop-results__bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.shop-results__count { margin: 0; font-size: .9rem; color: var(--c-muted); }
.shop-results__sort { display: inline-flex; align-items: center; gap: 8px; font-size: .85rem; }
.shop-results__sort select { min-height: 40px; padding: 6px 10px; border: 1px solid var(--c-line); border-radius: var(--radius-sm); background: #fff; font: inherit; }
.shop-empty { margin-top: 24px; padding: 24px; border: 1px dashed var(--c-line); border-radius: var(--radius); text-align: center; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.chip-row a { font-size: .85rem; padding: 6px 12px; border: 1px solid var(--c-line); border-radius: 999px; color: var(--c-ink); text-decoration: none; background: #fff; }
.chip-row a:hover, .chip-row a:focus-visible { border-color: var(--c-accent); color: var(--c-accent); }

/* ---------- Product page ---------- */
.product {
  max-width: 1180px; margin: 0 auto; padding: 8px 20px 0;
  display: grid; grid-template-columns: 3fr 2fr; gap: 36px; align-items: start;
}
.product__gallery { display: flex; flex-direction: column; gap: 12px; }
.product__main {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  aspect-ratio: 4 / 5; display: flex; align-items: center; justify-content: center; padding: 16px; box-sizing: border-box;
}
.product__main img { width: 100%; height: 100%; object-fit: contain; display: block; }
.product__thumbs { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.product__thumbs button {
  aspect-ratio: 1; padding: 4px; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-sm); cursor: pointer; overflow: hidden;
}
.product__thumbs button[aria-current="true"] { border-color: var(--c-accent); box-shadow: 0 0 0 1px var(--c-accent); }
.product__thumbs img { width: 100%; height: 100%; object-fit: contain; display: block; }
.product__buy { position: sticky; top: 16px; display: flex; flex-direction: column; gap: 12px; }
.product__title { font-size: clamp(1.35rem, 2.6vw, 1.8rem); line-height: 1.25; margin: 0; }
.product__cat { font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--c-secondary); margin: 0; }
.product__price { font-size: 1.15rem; margin: 0; }
.product__price .label { font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--c-muted); display: block; margin-bottom: 2px; }
.product__desc { color: var(--c-muted); margin: 0; }
.product__form { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.product__form label { display: flex; flex-direction: column; gap: 4px; font-size: .85rem; }
.product__form input { width: 84px; min-height: 44px; padding: 8px 10px; border: 1px solid var(--c-line); border-radius: var(--radius-sm); font: inherit; }
.product__note { font-size: .85rem; color: var(--c-accent); margin: 0; }
.product__pay { font-size: .85rem; color: var(--c-muted); margin: 0; padding: 10px 12px; border: 1px dashed var(--c-line); border-radius: var(--radius-sm); }
.product__help { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: .88rem; }
.product__help a { color: var(--c-secondary); }
.product__details, .product__guide, .product__related {
  max-width: 1180px; margin: 0 auto; padding: 32px 20px 0;
}
.product__details { border-top: 1px solid var(--c-line); margin-top: 36px; }
.product__guide ul { padding-left: 20px; line-height: 1.7; }
.product__guide a { color: var(--c-accent); }
.product__related { padding-bottom: var(--pad-section); }

/* ---------- Cart ---------- */
.cart-layout { display: grid; grid-template-columns: 1fr 340px; gap: 28px; align-items: start; margin-bottom: 32px; }
.cart-items { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 18px; }
.cart-summary { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 18px; position: sticky; top: 16px; }
.summary-list { margin: 0 0 14px; padding: 0; }
.summary-list > div { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--c-line); font-size: .92rem; }
.summary-list > div:last-child { border-bottom: 0; }
.summary-list dt { color: var(--c-muted); }
.summary-list dd { margin: 0; font-weight: 600; text-align: right; }
.summary-note { font-size: .82rem; color: var(--c-muted); margin: 0 0 14px; }
.cart-summary .btn { margin-bottom: 10px; }
.summary-links { list-style: none; padding: 0; margin: 8px 0 0; font-size: .85rem; display: flex; flex-direction: column; gap: 4px; }
.summary-links a { color: var(--c-secondary); }
.cart-help { padding-bottom: var(--pad-section); }
.help-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.help-grid > div { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 16px; }
.help-grid h3 { font-size: .98rem; margin: 0 0 6px; }
.help-grid p { margin: 0; font-size: .9rem; color: var(--c-muted); }
.help-grid a { color: var(--c-accent); }
.empty { color: var(--c-muted); margin: 0; }

/* ---------- Checkout ---------- */
.checkout-layout { display: grid; grid-template-columns: 1fr 340px; gap: 28px; align-items: start; margin-bottom: 32px; }
.checkout-form { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 18px; }
.checkout-summary { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 18px; position: sticky; top: 16px; }
.fieldset { border: 1px solid var(--c-line); border-radius: var(--radius-sm); padding: 14px; margin: 0 0 16px; }
.fieldset legend { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--c-secondary); padding: 0 6px; }
.fieldset-note { font-size: .88rem; color: var(--c-muted); margin: 0; }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; font-size: .88rem; }
.field input { min-height: 42px; padding: 8px 10px; border: 1px solid var(--c-line); border-radius: var(--radius-sm); font: inherit; background: #fff; }
.field input:disabled { background: #F7F5F0; color: #8A9296; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pay-block { border: 1px dashed var(--c-line); border-radius: var(--radius-sm); padding: 12px; margin: 14px 0; }
.pay-block__label { font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--c-muted); margin: 0 0 4px; }
.pay-block__mark { font-weight: 700; font-size: 1.05rem; margin: 0 0 4px; color: var(--c-secondary); }
.pay-block__note { font-size: .8rem; color: var(--c-muted); margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .shop-layout { grid-template-columns: 1fr; }
  .shop-filters { position: static; }
  .shop-filters__toggle {
    display: inline-flex; align-items: center; gap: 8px; min-height: 42px; padding: 8px 14px;
    border: 1px solid var(--c-line); border-radius: var(--radius-sm); background: #fff; font: inherit; font-weight: 600; cursor: pointer;
  }
  .shop-filters__panel { display: none; margin-top: 12px; padding: 14px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); }
  .shop-filters__panel.is-open { display: flex; }
  .product { grid-template-columns: 1fr; gap: 24px; }
  .product__buy { position: static; }
  .cart-layout, .checkout-layout { grid-template-columns: 1fr; }
  .cart-summary, .checkout-summary { position: static; }
  .help-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  :root { --pad-section: 32px; --gap: 14px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .card__body { padding: 10px 10px 12px; }
  .card__name { font-size: .88rem; }
  .product { grid-template-columns: minmax(0, 1fr); }
  .product__gallery { min-width: 0; }
  .product__thumbs { display: flex; overflow-x: auto; gap: 8px; scroll-snap-type: x proximity; padding-bottom: 4px; min-width: 0; -webkit-overflow-scrolling: touch; }
  .product__thumbs button { flex: 0 0 56px; width: 56px; scroll-snap-align: start; }
  .shop-intro { padding-top: 20px; }
  .product__form { flex-direction: column; align-items: stretch; }
  .product__form input { width: 100%; }
  .product__form .btn { width: 100%; }
  .field-row { grid-template-columns: 1fr; }
  .cart-items, .cart-summary, .checkout-form, .checkout-summary { padding: 14px; }
}

@media (max-width: 420px) {
  .product-grid { grid-template-columns: 1fr 1fr; }
  .product__thumbs { grid-template-columns: repeat(4, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .btn, .card, .chip-row a { transition: none; }
}