:root {
  color-scheme: light;
  --background: #f7f4ed;
  --foreground: #20231f;
  --card: #fffdf7;
  --card-foreground: #20231f;
  --muted: #eef5f1;
  --muted-foreground: #666f68;
  --border: #d9d2c2;
  --primary: #1f6f5b;
  --primary-foreground: #ffffff;
  --primary-strong: #0d4f43;
  --warning: #fff7ed;
  --destructive: #9b3d25;
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Aptos", "Noto Sans", sans-serif;

  /* Legacy aliases kept temporarily while older selectors migrate. */
  --ink: var(--foreground);
  --paper: var(--background);
  --panel: var(--card);
  --line: var(--border);
  --accent: var(--primary);
  --accent-strong: var(--primary-strong);
  --warn: var(--destructive);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--primary) 35%, transparent);
  outline-offset: 3px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 10px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 253, 247, 0.92);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0;
}

.brand-icon {
  display: block;
  width: 28px;
  height: 28px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  color: var(--muted-foreground);
  font-family: var(--font-sans);
  font-size: 0.92rem;
}

.nav-links a {
  border-radius: 999px;
  padding: 7px 10px;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: var(--muted);
  color: var(--primary-strong);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.hero,
.search-panel,
.search-bar {
  padding: 16px 0 20px;
  border-bottom: 1px solid var(--border);
}

.hero,
.search-panel {
  display: grid;
  gap: 20px;
}

.hero {
  grid-template-columns: minmax(0, 1fr) minmax(0, 200px);
  align-items: start;
}

.hero-copy,
.product-header,
.legal-page {
  display: grid;
  gap: 10px;
}

.search-panel h1,
.hero h1,
.product-header h1,
.legal-page h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3.4rem);
  line-height: 1.0;
  letter-spacing: -0.01em;
}

.lede {
  max-width: 760px;
  margin: 0;
  color: var(--muted-foreground);
  font-size: clamp(0.9rem, 1.6vw, 1.05rem);
  line-height: 1.55;
}

.eyebrow {
  margin: 0;
  color: var(--primary-strong);
  font-family: var(--font-sans);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.search-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  width: min(900px, 100%);
}

.search-hint {
  margin: -4px 0 0;
  color: var(--muted-foreground);
  font-family: var(--font-sans);
  font-size: 0.92rem;
}

.search-hint code {
  color: var(--foreground);
}

input,
button {
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
}

input {
  width: 100%;
  padding: 0 16px;
  background: var(--card);
}

button {
  padding: 0 18px;
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
  cursor: pointer;
}

button:hover {
  background: var(--primary-strong);
}

.results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  padding-top: 16px;
}

.result-card,
.empty,
.edge-detail,
.evidence,
.info-card,
.trust-card,
.notice-panel,
.legal-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
}

.result-card,
.info-card,
.trust-card,
.notice-panel,
.legal-section {
  display: grid;
  gap: 12px;
}

.landing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  padding-top: 16px;
}

.info-card h2,
.notice-panel h2,
.legal-page h2 {
  margin: 0;
  line-height: 1.1;
}

.info-card p,
.notice-panel p,
.legal-page p,
.legal-page li {
  line-height: 1.6;
}

.check-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
}

.notice-panel {
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1fr);
  margin-top: 12px;
  background: var(--warning);
}

.result-card h2,
.edge-detail h3,
.evidence h3 {
  margin: 6px 0;
  line-height: 1.1;
}

.sku,
.availability,
.evidence-label {
  color: var(--muted-foreground);
}

.edge-list {
  display: grid;
  gap: 8px;
}

.edge {
  display: grid;
  gap: 4px;
  padding: 10px;
  background: var(--muted);
  border-radius: 6px;
}

.product {
  display: grid;
  gap: 20px;
}

.product-header {
  display: grid;
  gap: 10px;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.spec-grid div {
  display: grid;
  gap: 4px;
  min-height: 64px;
  padding: 10px 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.spec-grid span {
  color: var(--muted-foreground);
  font-family: var(--font-sans);
}

.warning {
  color: var(--destructive);
  font-weight: 700;
}

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

.feedback button {
  min-height: 38px;
  background: transparent;
  color: var(--primary-strong);
}

.feedback-result {
  margin-top: 12px;
}

.notice {
  color: var(--primary-strong);
  font-weight: 700;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 24px;
  border-top: 1px solid var(--border);
  color: var(--muted-foreground);
  font-size: 0.88rem;
  background: rgba(255, 253, 247, 0.72);
}

@media (max-width: 680px) {
  .topbar,
  .search-form,
  .hero,
  .notice-panel {
    grid-template-columns: 1fr;
  }

  .topbar,
  .footer {
    align-items: flex-start;
    padding: 10px 16px;
  }
}