:root {
  color-scheme: light;
  --ink: #171717;
  --muted: #717171;
  --line: #e7e7e5;
  --soft: #f6f6f4;
  --soft-strong: #efefec;
  --success: #23784a;
  --danger: #a43b35;
  --radius: 16px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  background: #fff;
  color: var(--ink);
}

body {
  margin: 0;
  min-width: 320px;
  background: #fff;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(23, 23, 23, 0.2);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.page-shell {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: #fff;
  background: var(--ink);
  font-size: 14px;
}

.search-panel {
  margin-top: 52px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 18px 60px rgba(20, 20, 20, 0.055);
}

.search-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

#search-input {
  width: 100%;
  height: 58px;
  padding: 0 19px;
  border: 1px solid #d5d5d1;
  border-radius: 13px;
  color: var(--ink);
  background: #fff;
  font-size: 16px;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

#search-input::placeholder {
  color: #9a9a96;
}

#search-input:focus {
  border-color: var(--ink);
  box-shadow: 0 0 0 4px rgba(23, 23, 23, 0.07);
  outline: none;
}

.search-button {
  min-width: 132px;
  height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 23px;
  border: 1px solid var(--ink);
  border-radius: 13px;
  color: #fff;
  background: var(--ink);
  font-weight: 680;
  cursor: pointer;
  transition: transform 120ms ease, opacity 120ms ease;
}

.search-button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.search-button:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

.search-button svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.8;
}

.site-picker {
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

.site-picker summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 2px 4px;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  list-style: none;
}

.site-picker summary::-webkit-details-marker {
  display: none;
}

.selection-summary {
  color: var(--muted);
  font-weight: 450;
}

.site-picker-body {
  padding-top: 15px;
}

.site-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 13px;
  color: #b2b2ad;
  font-size: 13px;
}

.site-actions button {
  padding: 0;
  border: 0;
  color: var(--muted);
  background: none;
  cursor: pointer;
}

.site-actions button:hover {
  color: var(--ink);
}

.site-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-option {
  position: relative;
  cursor: pointer;
  user-select: none;
}

.site-option input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.site-option span {
  min-height: 35px;
  display: inline-flex;
  align-items: center;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #646460;
  background: #fff;
  font-size: 13px;
  transition: all 120ms ease;
}

.site-option input:checked + span {
  border-color: var(--ink);
  color: #fff;
  background: var(--ink);
}

.site-option input:focus-visible + span {
  outline: 3px solid rgba(23, 23, 23, 0.2);
  outline-offset: 2px;
}

.search-state {
  margin-top: 38px;
  padding: 24px 0 10px;
  border-top: 1px solid var(--line);
}

.status-title {
  margin: 0;
  font-size: 20px;
  font-weight: 680;
  letter-spacing: -0.025em;
}

.status-detail {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.status-detail:empty {
  display: none;
}

.progress-track {
  height: 3px;
  margin-top: 19px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--soft-strong);
}

.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--ink);
  transition: width 220ms ease;
}

.site-progress {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 16px;
}

.progress-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 27px;
  padding: 0 9px;
  border-radius: 999px;
  color: var(--muted);
  background: var(--soft);
  font-size: 11px;
}

.progress-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #b4b4af;
}

.progress-pill.is-complete::before {
  background: var(--success);
}

.progress-pill.is-failed::before {
  background: var(--danger);
}

.welcome-state {
  min-height: 360px;
  display: grid;
  justify-items: center;
  align-content: center;
  padding: 70px 24px;
  text-align: center;
}

.welcome-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 50%;
  color: #8d8d88;
  background: var(--soft);
}

.welcome-icon svg {
  width: 27px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.4;
}

.results {
  padding-top: 16px;
}

.retailer-results {
  padding: 38px 0 12px;
  border-top: 1px solid var(--line);
}

.retailer-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.retailer-heading h2 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -0.03em;
}

.retailer-heading span {
  color: var(--muted);
  font-size: 13px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px 16px;
}

.product-card {
  min-width: 0;
}

.product-image-link {
  position: relative;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: var(--radius);
  color: #aaa;
  background: var(--soft);
  text-decoration: none;
}

.product-image-link img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  mix-blend-mode: multiply;
  transition: transform 180ms ease;
}

.product-image-link:hover img {
  transform: scale(1.025);
}

.image-placeholder {
  font-size: 30px;
  font-weight: 300;
}

.product-body {
  padding: 13px 2px 0;
}

.product-retailer {
  margin: 0 0 7px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 720;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-name {
  display: -webkit-box;
  min-height: 42px;
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: 14px;
  font-weight: 560;
  line-height: 1.48;
  text-decoration: none;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.product-name:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.price-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}

.native-price {
  font-size: 15px;
  font-weight: 720;
}

.usd-price,
.shipping-note,
.missing-price {
  color: var(--muted);
  font-size: 12px;
}

.shipping-note {
  margin: 6px 0 0;
}

.shipping-note.is-free {
  color: var(--success);
}

.retailer-error {
  margin: 34px 0;
  padding: 17px 19px;
  border: 1px solid #f0d8d5;
  border-radius: 12px;
  color: #7b4540;
  background: #fff9f8;
  font-size: 13px;
}

@media (max-width: 980px) {
  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 28px, 1440px);
  }

  .site-header {
    min-height: 64px;
  }

  .search-panel {
    margin-top: 32px;
    padding: 20px;
    border-radius: 16px;
  }

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

  .search-button {
    width: 100%;
  }

  .site-picker summary {
    align-items: flex-start;
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 12px;
  }
}

@media (max-width: 440px) {
  .site-option span {
    min-height: 34px;
    padding: 0 11px;
    font-size: 12px;
  }

  .product-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .product-image-link {
    aspect-ratio: 4 / 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}