:root {
  color-scheme: light;
  --bg: #ffffff;
  --ink: #111111;
  --muted: #686868;
  --line: #dddddd;
  --panel: #ffffff;
  --accent: #111111;
  --accent-ink: #ffffff;
  --warn: #d82f2f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

.shell {
  width: min(960px, 100%);
  margin: 0 auto;
  padding: 14px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0 14px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 24px;
  line-height: 1.1;
}

#status {
  margin-top: 5px;
  color: var(--muted);
  font-size: 14px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: max(22px, env(safe-area-inset-bottom));
  z-index: 10000;
  width: min(420px, calc(100% - 28px));
  border: 1px solid rgba(166, 66, 50, .28);
  border-radius: 8px;
  padding: 12px 14px;
  background: #fff7f4;
  box-shadow: 0 12px 32px rgba(29, 29, 31, .18);
  color: var(--warn);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity .18s ease, transform .18s ease;
  overflow-wrap: anywhere;
}

dialog .toast {
  position: fixed;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.tab,
button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
}

.tab.is-active {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
}

.icon-btn {
  width: 42px;
  padding: 0;
  font-size: 20px;
}

.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}

.view.is-hidden,
.is-hidden {
  display: none !important;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.product,
.panel,
.summary,
.cart-row,
.order-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.product {
  overflow: hidden;
}

.product-open {
  display: block;
  width: 100%;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: inherit;
  text-align: left;
}

.photo {
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, #e8e8e8, #fafafa);
  background-position: center;
  background-size: cover;
}

.product-body {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.product-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 10px;
}

.product-head strong {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 6px;
}

.price-stack {
  display: grid;
  justify-items: end;
  gap: 1px;
}

.old-price {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  opacity: .62;
  text-decoration: line-through;
}

.new-price {
  color: var(--ink);
  font-size: 18px;
  font-weight: 800;
}

.discount-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 6px;
  padding: 0 7px;
  background: #d82f2f;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.inline-price {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 6px;
}

.product h2 {
  font-size: 16px;
  line-height: 1.25;
}

.product p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

.sizes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.size-btn {
  min-height: 34px;
  padding: 0 10px;
}

.size-badge {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 8px;
  background: #fafafa;
  font-size: 13px;
}

.size-btn.is-active {
  border-color: var(--accent);
  background: #f0f0f0;
}

.stack {
  display: grid;
  gap: 10px;
}

.panel {
  display: grid;
  gap: 12px;
  padding: 12px;
  margin-bottom: 14px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
  color: var(--ink);
}

.size-stock {
  display: grid;
  gap: 10px;
  min-width: 0;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.size-stock legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 13px;
}

.size-stock-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 8px;
}

.size-stock-row {
  display: grid;
  grid-template-columns: 1fr 72px;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  background: #fafafa;
}

.size-choice {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  font-weight: 700;
}

.size-choice input {
  width: auto;
}

.size-stock-row input[type="number"] {
  padding: 8px;
}

.size-stock-row input:disabled {
  color: var(--muted);
  background: #f0f0f0;
}

.photo-preview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(78px, 1fr));
  gap: 8px;
}

.photo-chip {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.photo-chip div {
  aspect-ratio: 1;
  background-position: center;
  background-size: cover;
}

.photo-chip button {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 28px;
  min-height: 28px;
  border-color: rgba(0, 0, 0, .18);
  background: rgba(255, 255, 255, .9);
}

.dialog {
  width: min(720px, calc(100% - 24px));
  max-height: calc(100dvh - 24px);
  z-index: 1000;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0;
  background: var(--panel);
  color: var(--ink);
}

.dialog::backdrop {
  background: rgba(29, 29, 31, .42);
}

.dialog-close {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 2;
  width: 36px;
  min-height: 36px;
  background: rgba(255, 255, 255, .92);
}

.dialog-gallery {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(240px, 1fr);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}

.dialog-photo {
  aspect-ratio: 4 / 5;
  min-height: 280px;
  background: linear-gradient(135deg, #e8e8e8, #fafafa);
  background-position: center;
  background-size: cover;
  scroll-snap-align: start;
}

.dialog-body {
  display: grid;
  gap: 12px;
  padding: 14px;
}

.quantity {
  display: inline-grid;
  grid-template-columns: 42px 52px 42px;
  align-items: center;
  gap: 8px;
}

.quantity strong {
  text-align: center;
}

.quantity button {
  width: 42px;
  padding: 0;
}

textarea {
  resize: vertical;
}

.check {
  display: flex;
  align-items: center;
}

.check input {
  width: auto;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.cart-rule-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(82px, 1fr)) minmax(94px, auto) minmax(82px, auto);
  align-items: end;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fafafa;
}

.cart-row,
.order-row {
  display: grid;
  gap: 6px;
  padding: 12px;
}

.support-thread {
  display: grid;
  gap: 8px;
}

.support-message {
  display: grid;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  background: #fafafa;
}

.support-message p {
  color: var(--ink);
  white-space: pre-wrap;
}

.payment-box {
  display: grid;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #f4f4f4;
}

.payment-box span {
  color: var(--ink);
}

.checkout-dialog .dialog-body {
  padding-top: 46px;
}

.checkout-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(120px, auto);
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fafafa;
}

.checkout-item > div {
  display: grid;
  gap: 4px;
}

.checkout-item > div:last-child {
  justify-items: end;
}

.checkout-item span,
.checkout-summary span {
  color: var(--muted);
}

.checkout-summary {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.delivery-free {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #f4f4f4;
  color: var(--ink);
  font-weight: 700;
}

.delivery-options {
  display: grid;
  gap: 8px;
  min-width: 0;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.delivery-options legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 13px;
}

.delivery-options > div {
  display: grid;
  gap: 8px;
}

.delivery-option {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: #fafafa;
  color: var(--ink);
  font-weight: 700;
}

.delivery-option input {
  width: auto;
}

.discount-line {
  color: var(--warn);
  font-weight: 700;
}

.row-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

select {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 10px;
  background: var(--panel);
  color: var(--ink);
}

.summary {
  display: flex;
  justify-content: space-between;
  padding: 12px;
  margin: 12px 0;
}

.danger {
  color: var(--warn);
}

@media (max-width: 520px) {
  .shell {
    padding: 10px;
  }

  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .cart-rule-row {
    grid-template-columns: 1fr 1fr;
  }

  .checkout-item {
    grid-template-columns: 1fr;
  }

  .checkout-item > div:last-child {
    justify-items: start;
  }

  .product-body {
    padding: 10px;
  }
}