/*
 * ICE CUBE v2 – pages/cart.css (shop-product-cart)
 * Kosár layout: rows (§11.21) in columns 1–8, the order summary (§11.22) in 9–12, quick-add suggestions,
 * the empty state (§11.26) and a mobile checkout bar. Tokens only; dark mode follows the tokens.
 * New page-level patterns (listed in the builder report): .cart-row (the page variant of the cart line),
 * .cart-code (demo partner / coupon code), .cart-sticky (mobile checkout bar), .cart-facts.
 */

/* ------------------------------------------------------------------ header */
.page--cart .cart-header { padding-bottom: 28px; }
.page--cart .cart-header__row { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 24px; margin-top: 8px; }
.page--cart .cart-header__row .shop-header__title { margin-top: 0; }
.page--cart .cart-header__line { margin-top: 0; font-variant-numeric: tabular-nums; }
.page--cart .cart-header__line:empty { display: none; }
.page--cart #cart-title:focus { outline: none; }
.page--cart #cart-title:focus-visible { outline: 2px solid var(--ring); outline-offset: 4px; }

.page--cart .cart-section { padding-top: 32px; }
@media (min-width: 1024px) { .page--cart .cart-section { padding-top: 40px; } }

/* ------------------------------------------------------------------ layout */
.page--cart .cart-layout { display: grid; gap: 40px; }
.page--cart .cart-layout__lines, .page--cart .cart-layout__summary, .page--cart .cart-suggest { min-width: 0; }
@media (min-width: 1024px) {
  .page--cart .cart-layout { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; row-gap: 56px; align-items: start; }
  .page--cart .cart-layout__lines { grid-column: 1 / 9; grid-row: 1; }
  .page--cart .cart-layout__summary { grid-column: 9 / 13; grid-row: 1 / span 3; align-self: stretch; }
  .page--cart .cart-suggest { grid-column: 1 / 9; grid-row: 2; }
  .page--cart .cart-facts { grid-column: 1 / 9; grid-row: 3; margin-top: 0; }
  .page--cart .cart-suggest[hidden] + .cart-facts { grid-row: 2; }
  /* Sticky summary that never hides its own bottom: cart.js sets --sum-top (96 px when it fits). */
  .page--cart .cart-summary { position: sticky; top: var(--sum-top, 96px); }
}

/* ------------------------------------------------------------------ cart rows (§11.21) */
.page--cart .cart-head { display: none; }
.page--cart .cart-rows { border-top: 1px solid var(--line); }
.page--cart .cart-row {
  display: grid; grid-template-columns: 80px minmax(0, 1fr) auto;
  grid-template-areas: "media info info" "media unit unit" "media qty total" "media actions actions";
  column-gap: 16px; row-gap: 8px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--line);
}
.page--cart .cart-row__media {
  grid-area: media; align-self: start; display: block; width: 80px; height: 100px; overflow: hidden;
  border-radius: var(--radius-s); background: var(--studio-stage);
}
.page--cart .cart-row__media img { width: 100%; height: 100%; object-fit: cover; }
.page--cart .cart-row__info { grid-area: info; min-width: 0; display: grid; gap: 4px; align-self: start; }
.page--cart .cart-row__name { font-family: var(--font-ui); font-size: 18px; line-height: 1.3; font-weight: 700; }
.page--cart .cart-row__name a { color: var(--text); text-decoration: none; }
.page--cart .cart-row__name a:hover { text-decoration: underline; text-underline-offset: 3px; }
.page--cart .cart-row__meta { font-size: 14px; line-height: 1.4; color: var(--text-2); font-variant-numeric: tabular-nums; }
.page--cart .cart-row__stock { margin-top: 2px; }
.page--cart .cart-row__unit { grid-area: unit; font-size: 14px; line-height: 1.4; color: var(--text-2); font-variant-numeric: tabular-nums; }
.page--cart .cart-row__unit-gross { color: var(--text); font-weight: 600; }
.page--cart .cart-row__qty { grid-area: qty; }
.page--cart .cart-row__total { grid-area: total; text-align: right; font-variant-numeric: tabular-nums; }
.page--cart .cart-row__total .price { display: block; white-space: nowrap; }
.page--cart .cart-row__sub { display: block; font-size: 13px; line-height: 1.4; font-weight: 500; color: var(--text-2); white-space: nowrap; }
.page--cart .cart-row__actions { grid-area: actions; display: flex; }
.page--cart .cart-row__remove { --btn-h: 36px; font-size: 14px; }
.page--cart .cart-row.is-new { animation: cart-row-in var(--dur-slow) var(--ease-standard); }
@keyframes cart-row-in { from { background: var(--bg-2); } }
@media (prefers-reduced-motion: reduce) { .page--cart .cart-row.is-new { animation: none; } }

@media (min-width: 1280px) {
  .page--cart .cart-head {
    display: grid; grid-template-columns: 80px minmax(0, 1fr) 120px 132px 132px; column-gap: 20px;
    padding: 0 0 10px; font-size: 14px; line-height: 1.3; font-weight: 700; color: var(--text-2);
  }
  .page--cart .cart-head__product { grid-column: 1 / 3; }
  .page--cart .cart-head__unit, .page--cart .cart-head__total { text-align: right; }
  .page--cart .cart-head__qty { text-align: center; }
  .page--cart .cart-row {
    grid-template-columns: 80px minmax(0, 1fr) 120px 132px 132px;
    grid-template-areas: "media info unit qty total" "media actions unit qty total";
    column-gap: 20px; row-gap: 2px; align-items: start; padding: 24px 0;
  }
  .page--cart .cart-row__unit { text-align: right; padding-top: 2px; }
  .page--cart .cart-row__unit-gross { display: block; font-size: 16px; }
  .page--cart .cart-row__unit .cart-row__sep { display: none; }
  .page--cart .cart-row__total { padding-top: 0; }
  .page--cart .cart-row__actions { align-self: end; }
}

.page--cart .cart-lines__foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 24px; margin-top: 16px; }
.page--cart .cart-lines__clear { color: var(--text-2); }
.page--cart .cart-lines__clear:hover { color: var(--danger); }

/* ------------------------------------------------------------------ summary (§11.22) */
.page--cart .cart-summary { display: grid; }
.page--cart .cart-summary .summary-card__title:focus { outline: none; }
.page--cart .cart-summary__mode { display: grid; gap: 8px; margin-bottom: 16px; }
.page--cart .cart-summary__mode .segmented__label { padding: 0 10px; }
.page--cart .cart-summary__mode-note { font-size: 13px; line-height: 1.45; color: var(--text-2); }
.page--cart .cart-summary__mode-note a { font-weight: 600; }
.page--cart .cart-summary__rows dt { min-width: 0; }
.page--cart .cart-summary__discount dd { color: var(--success); }
.page--cart .cart-summary__gross-note { margin-top: 2px; font-size: 13px; line-height: 1.4; color: var(--text-2); text-align: right; font-variant-numeric: tabular-nums; }
.page--cart .cart-summary__gross-note:empty { display: none; }
.page--cart .cart-summary__meter { margin-top: 10px; }
.page--cart .cart-summary__cta { display: grid; gap: 12px; margin-top: 20px; }
.page--cart .cart-summary__warn { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; line-height: 1.4; font-weight: 600; color: var(--danger); }
.page--cart .cart-summary__warn .icon { flex: none; width: 18px; height: 18px; margin-top: 1px; }
.page--cart .cart-summary__cta .btn .icon { transition: transform var(--dur-fast) var(--ease-standard); }
.page--cart .cart-summary__cta a.btn:hover .icon { transform: translateX(3px); }
@media (prefers-reduced-motion: reduce) { .page--cart .cart-summary__cta a.btn:hover .icon { transform: none; } }

/* Demo partner / coupon code: collapsed by default, open while a code is applied. */
.page--cart .cart-code { margin-top: 16px; border-top: 1px solid var(--line); }
.page--cart .cart-code__summary {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 48px;
  list-style: none; font-size: 15px; font-weight: 600; color: var(--text);
}
.page--cart .cart-code__summary::-webkit-details-marker { display: none; }
.page--cart .cart-code__summary::marker { content: ""; }
.page--cart .cart-code__summary .icon { width: 20px; height: 20px; color: var(--text-2); transition: transform var(--dur-base) var(--ease-standard); }
.page--cart .cart-code[open] > .cart-code__summary .icon { transform: rotate(180deg); }
.page--cart .cart-code__summary:hover { color: var(--link); }
.page--cart .cart-code__summary:focus-visible { outline-offset: 2px; border-radius: var(--radius-xs); }
.page--cart .cart-code__body { display: grid; gap: 10px; padding-bottom: 4px; }
.page--cart .cart-code__row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
.page--cart .cart-code__row .input { text-transform: uppercase; letter-spacing: 0.02em; }
.page--cart .cart-code__row .btn { padding: 0 16px; }
.page--cart .cart-code__applied {
  display: flex; align-items: flex-start; gap: 10px; padding: 12px 14px; border-radius: var(--radius-s);
  background: var(--success-bg); color: var(--text); font-size: 14px; line-height: 1.45;
}
.page--cart .cart-code__applied > .icon { flex: none; width: 20px; height: 20px; color: var(--success); }
.page--cart .cart-code__applied-text { flex: 1; min-width: 0; }
.page--cart .cart-code__applied-text b { font-variant-numeric: tabular-nums; }
.page--cart .cart-code__applied .btn--text { --btn-h: 28px; font-size: 14px; }
.page--cart .cart-code__demo b { font-weight: 700; color: var(--text-2); }

/* Facts under the summary (function icons only, §8). */
.page--cart .cart-facts { display: grid; gap: 10px; max-width: 640px; padding: 20px 0 0; border-top: 1px solid var(--line); }
.page--cart .cart-facts__item { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 10px; font-size: 14px; line-height: 1.45; color: var(--text-2); }
.page--cart .cart-facts__item > .icon { width: 20px; height: 20px; color: var(--text-2); }
.page--cart .cart-facts__item a { font-weight: 600; }

/* ------------------------------------------------------------------ quick-add suggestions */
.page--cart .cart-suggest__head { display: grid; gap: 8px; margin-bottom: 20px; }
.page--cart .cart-suggest__lead { max-width: 62ch; color: var(--text-2); }
.page--cart .cart-suggest__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.page--cart .cart-suggest__grid > :nth-child(n + 3) { display: none; }
@media (min-width: 768px) {
  .page--cart .cart-suggest__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 720px; gap: 16px; }
  .page--cart .cart-suggest__grid > :nth-child(3) { display: flex; }
}

/* ------------------------------------------------------------------ empty state (§11.26) */
.page--cart .cart-empty__state { padding-top: 24px; }
.page--cart .cart-empty__state .empty-state__title { font-size: var(--fs-h3); }
.page--cart .cart-popular { margin-top: 40px; padding-top: 48px; border-top: 1px solid var(--line); }
.page--cart .cart-popular__head { display: grid; gap: 8px; margin-bottom: 24px; }
.page--cart .cart-popular__lead { max-width: 62ch; color: var(--text-2); }
.page--cart .cart-popular__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 1024px) {
  .page--cart .cart-popular__head { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; align-items: end; }
  .page--cart .cart-popular__head > :first-child { grid-column: 1 / 8; }
  .page--cart .cart-popular__head > :nth-child(2) { grid-column: 8 / 13; }
  .page--cart .cart-popular__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
}

/* ------------------------------------------------------------------ mobile checkout bar */
.page--cart .cart-sticky { display: none; }
@media (max-width: 1023px) {
  .page--cart .cart-sticky {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: calc(var(--z-header) - 5);
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    min-height: calc(72px + env(safe-area-inset-bottom, 0px));
    padding: 12px max(var(--gutter), env(safe-area-inset-right, 0px)) calc(12px + env(safe-area-inset-bottom, 0px)) max(var(--gutter), env(safe-area-inset-left, 0px));
    background: var(--surface); color: var(--text); border-top: 1px solid var(--line); box-shadow: var(--e2); --ring: var(--focus);
    transform: translateY(110%); visibility: hidden;
    transition: transform var(--dur-base) var(--ease-standard), visibility 0s linear var(--dur-base);
  }
  .page--cart .cart-sticky.is-visible { transform: none; visibility: visible; transition: transform var(--dur-base) var(--ease-standard), visibility 0s; }
  .page--cart .cart-sticky__sum { display: grid; min-width: 0; }
  .page--cart .cart-sticky__label { font-size: 12px; line-height: 1.3; font-weight: 500; color: var(--text-2); }
  .page--cart .cart-sticky__total .price { font-size: 22px; }
  .page--cart .cart-sticky__cta { flex: none; display: flex; align-items: center; }
  .page--cart .cart-sticky__missing { max-width: 190px; font-size: 13px; line-height: 1.35; font-weight: 600; color: var(--danger); text-align: right; }
  main.page--cart:has(.cart-sticky.is-visible) ~ .toast-region { bottom: calc(88px + env(safe-area-inset-bottom, 0px)); }
}
@media (max-width: 1023px) and (prefers-reduced-motion: reduce) {
  .page--cart .cart-sticky, .page--cart .cart-sticky.is-visible { transition: none; }
}
@media (max-width: 419px) {
  .page--cart .cart-sticky .btn { --btn-px: 16px; }
  .page--cart .cart-sticky__total .price { font-size: 20px; }
}

/* ---------------------------------------------------------------- loading skeleton and API error
 * Skeleton pieces are shared .skeleton elements (look and pulse: components.css §18); only their sizes are set here.
 * The error block is the shared .api-error (IC.ui.apiError); only its placement is set here. */
.page--cart .cart-skel__row { display: grid; grid-template-columns: 80px minmax(0, 1fr) auto; gap: 16px; align-items: start; padding: 20px 0; border-bottom: 1px solid var(--line); }
.page--cart .cart-skel__row:first-child { border-top: 1px solid var(--line); }
.page--cart .cart-skel__media { width: 80px; height: 100px; border-radius: var(--radius-m); }
.page--cart .cart-skel__lines { display: grid; gap: 10px; padding-top: 4px; }
.page--cart .cart-skel__lines > .skeleton { height: 16px; width: 70%; }
.page--cart .cart-skel__lines > .skeleton:first-child { height: 20px; width: 55%; }
.page--cart .cart-skel__lines > .skeleton:last-child { width: 40%; }
.page--cart .cart-skel__qty { width: 120px; height: 44px; border-radius: var(--radius-m); }
.page--cart .cart-skel__summary { display: grid; gap: 14px; }
.page--cart .cart-skel__summary > .skeleton { height: 18px; }
.page--cart .cart-skel__summary > .skeleton:first-child { height: 26px; width: 50%; }
.page--cart .cart-skel__summary > .cart-skel__cta { height: 52px; margin-top: 10px; border-radius: var(--radius-m); }
@media (max-width: 479px) {
  .page--cart .cart-skel__row { grid-template-columns: 64px minmax(0, 1fr); }
  .page--cart .cart-skel__media { width: 64px; height: 80px; }
  .page--cart .cart-skel__qty { grid-column: 2; }
}
.page--cart .cart-error { max-width: 760px; margin-bottom: 32px; }
.page--cart .cart-error__note { margin-top: 12px; font-size: 15px; line-height: 1.5; color: var(--text-2); }
.page--cart .cart-error__note a { font-weight: 600; }