/* =====================================================================
 * Interdoc HS-code lookup — stylesheet
 * Brand palette mirrors interdoc-shipping-guide/shipping-guide.css
 * ===================================================================== */

:root {
  --brand-blue: #1e6f9f;
  --brand-blue-dark: #155578;
  --brand-blue-darker: #0f3f5a;
  --gold: #eac055;
  --gold-dark: #d4af37;
  --gold-darker: #b8941f;
  --cream: #fefce8;
  --ink: #1a2734;
  --ink-soft: #4a5a6a;
  --ink-faint: #6b7c8e;
  --line: #e2e8f0;
  --line-strong: #cbd5e0;
  --surface: #ffffff;
  --surface-soft: #f7fafc;
  --surface-soft-2: #eef4f9;
  --hl: #fff4c9;
  --shadow-sm: 0 1px 2px rgba(15,63,90,.08);
  --shadow: 0 4px 12px rgba(15,63,90,.10);
  --shadow-lg: 0 10px 30px rgba(15,63,90,.15);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--surface-soft);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-size-adjust: 100%;
}

a { color: var(--brand-blue); text-decoration: none; }
a:hover { color: var(--brand-blue-dark); text-decoration: underline; }

/* ---------- Brand bar (matches shipping-guide.css) ---------- */
.brand-bar {
  position: sticky; top: 0; z-index: 100;
  background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-blue-dark) 100%);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.brand-bar-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.brand-mark {
  display: flex; align-items: center; gap: 12px;
  color: #fff;
}
.brand-mark:hover { text-decoration: none; }
.brand-mark-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--gold);
  color: var(--brand-blue-darker);
  font-weight: 800; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: -.5px;
}
.brand-mark-text { display: flex; flex-direction: column; line-height: 1.1; font-weight: 700; font-size: 18px; }
.brand-mark-text small { font-weight: 500; font-size: 11px; opacity: .8; margin-top: 2px; letter-spacing: .3px; text-transform: uppercase; }
.brand-actions { display: flex; gap: 8px; align-items: center; }
.brand-actions a {
  color: #fff;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: background .15s;
}
.brand-actions a:hover { background: rgba(255,255,255,.12); text-decoration: none; }
.brand-actions a.gold {
  background: var(--gold);
  color: var(--brand-blue-darker);
  font-weight: 700;
}
.brand-actions a.gold:hover { background: var(--gold-dark); }

/* ---------- Page hero ---------- */
.page-hero {
  background: linear-gradient(180deg, var(--brand-blue-dark) 0%, var(--brand-blue-darker) 100%);
  color: #fff;
  padding: 40px 24px 32px;
}
.page-hero-inner { max-width: 1280px; margin: 0 auto; }
.page-hero h1 { font-size: clamp(28px, 4vw, 38px); margin: 8px 0 12px; font-weight: 700; letter-spacing: -.5px; }
.page-hero .lede { max-width: 880px; color: rgba(255,255,255,.92); font-size: 16px; margin: 0; }
.page-hero .lede strong { color: var(--gold); font-weight: 600; }
.crumb { font-size: 13px; color: rgba(255,255,255,.75); }
.crumb a { color: rgba(255,255,255,.9); }
.crumb a:hover { color: var(--gold); text-decoration: none; }
.crumb .sep { margin: 0 6px; opacity: .6; }

/* ---------- Search block ---------- */
.search-block {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 68px;
  z-index: 90;
  box-shadow: var(--shadow-sm);
}
.search-block-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 20px 24px 16px;
}
.search-row { display: flex; gap: 12px; flex-wrap: wrap; }
.search-input-wrap {
  flex: 1; min-width: 280px;
  position: relative;
}
.search-input-wrap input {
  width: 100%;
  padding: 14px 44px 14px 18px;
  font-size: 16px;
  border: 2px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--ink);
  font-family: inherit;
  transition: border-color .15s, background .15s;
}
.search-input-wrap input:focus {
  outline: none;
  border-color: var(--brand-blue);
  background: #fff;
}
.search-input-wrap button {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  width: 28px; height: 28px;
  border: none; background: var(--line-strong); color: #fff;
  border-radius: 50%; cursor: pointer; font-size: 16px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
}
.search-input-wrap button:hover { background: var(--ink-faint); }
.search-row select {
  padding: 12px 14px;
  font-size: 14px;
  border: 2px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--ink);
  font-family: inherit;
  min-width: 180px;
  cursor: pointer;
}
.search-row select:focus { outline: none; border-color: var(--brand-blue); }
.search-hints {
  margin-top: 10px; font-size: 13px; color: var(--ink-soft);
  display: flex; gap: 18px; flex-wrap: wrap;
}
.search-hints code {
  background: var(--surface-soft-2); padding: 1px 6px; border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-size: 12px;
}
.search-stats {
  margin-top: 10px; font-size: 13px; color: var(--ink-faint);
  display: flex; gap: 18px; flex-wrap: wrap; justify-content: space-between;
  padding-top: 10px; border-top: 1px dashed var(--line);
}
.search-stats .src-line { font-style: italic; }
.search-stats .src-line a { color: var(--brand-blue-dark); }

/* ---------- Results ---------- */
.results-block {
  max-width: 1280px; margin: 0 auto;
  padding: 24px;
}
.placeholder {
  text-align: center; padding: 40px 20px;
  color: var(--ink-soft);
}
.placeholder h3 { color: var(--ink); font-weight: 600; margin: 0 0 6px; }
.placeholder p { margin: 0 0 24px; }
.quick-examples {
  display: inline-block; text-align: left;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 28px;
  box-shadow: var(--shadow-sm);
}
.quick-examples h4 { margin: 0 0 10px; font-size: 14px; text-transform: uppercase; letter-spacing: .5px; color: var(--ink-faint); font-weight: 600; }
.quick-examples ul { list-style: none; padding: 0; margin: 0; }
.quick-examples li { padding: 4px 0; font-size: 14px; color: var(--ink-soft); }
.quick-examples li a { color: var(--brand-blue); font-weight: 500; }

#results.has-results {
  background: transparent;
}
.result-meta {
  font-size: 13px; color: var(--ink-faint);
  margin-bottom: 14px;
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
}
.result-meta strong { color: var(--ink); font-weight: 600; }

.result-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 10px;
  display: grid;
  grid-template-columns: minmax(120px, 160px) 1fr;
  gap: 18px;
  transition: box-shadow .15s, border-color .15s;
}
.result-card:hover { box-shadow: var(--shadow); border-color: var(--line-strong); }
.result-card.is-grouping { background: var(--surface-soft); }
.result-card.is-grouping .result-code { color: var(--ink-faint); }

.result-code-block {
  display: flex; flex-direction: column; gap: 6px;
}
.result-code {
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--brand-blue-dark);
  letter-spacing: -.3px;
  line-height: 1.1;
}
.result-level {
  display: inline-block;
  font-size: 11px;
  background: var(--surface-soft-2);
  color: var(--brand-blue-dark);
  padding: 2px 8px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: .4px;
  font-weight: 600;
  width: fit-content;
}
.result-level.is-grouping { background: #fff3c7; color: var(--gold-darker); }
.result-chapter {
  font-size: 12px;
  color: var(--ink-faint);
}

.result-body { min-width: 0; }
.result-parents {
  font-size: 12px;
  color: var(--ink-faint);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: .3px;
}
.result-desc {
  font-size: 15px;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 10px;
}
.result-desc mark { background: var(--hl); padding: 0 2px; border-radius: 3px; }

.duty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 8px;
  margin-top: 10px;
}
.duty-cell {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
}
.duty-cell .duty-label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--ink-faint);
  font-weight: 600;
  margin-bottom: 2px;
}
.duty-cell .duty-value {
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-size: 13px;
  color: var(--ink);
  font-weight: 600;
}
.duty-cell .duty-value.free { color: #15803d; }
.duty-cell .duty-value.empty { color: var(--ink-faint); font-weight: 400; font-style: italic; }

.unit-line {
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 8px;
}
.unit-line code {
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-weight: 600;
  background: var(--surface-soft-2); padding: 1px 6px; border-radius: 3px;
}

.no-results {
  text-align: center; padding: 40px;
  color: var(--ink-soft);
}
.no-results h3 { color: var(--ink); margin: 0 0 8px; }

.load-more {
  display: block;
  margin: 16px auto;
  padding: 10px 24px;
  background: var(--brand-blue);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.load-more:hover { background: var(--brand-blue-dark); }

/* ---------- Footnote ---------- */
.footnote-block {
  background: var(--surface);
  border-top: 1px solid var(--line);
  padding: 32px 24px;
}
.footnote-block-inner { max-width: 1280px; margin: 0 auto; }
.footnote-block h3 { margin: 0 0 12px; font-size: 18px; color: var(--ink); }
.footnote-block p { font-size: 14px; color: var(--ink-soft); margin: 0 0 12px; line-height: 1.6; }
.footnote-block code {
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  background: var(--surface-soft-2); padding: 1px 6px; border-radius: 3px;
}
.src-line-bottom { font-size: 12px; color: var(--ink-faint); font-style: italic; }

/* ---------- Footer ---------- */
.page-footer {
  background: var(--brand-blue-darker);
  color: rgba(255,255,255,.8);
  padding: 20px 24px;
  font-size: 13px;
}
.page-footer-inner { max-width: 1280px; margin: 0 auto; display: flex; gap: 12px; flex-wrap: wrap; }
.page-footer a { color: rgba(255,255,255,.9); }
.page-footer a:hover { color: var(--gold); text-decoration: none; }
.footer-sep { opacity: .5; }

/* ---------- Mobile ---------- */
@media (max-width: 720px) {
  .brand-bar-inner { padding: 10px 16px; }
  .brand-actions { gap: 4px; }
  .brand-actions a { padding: 6px 10px; font-size: 13px; }
  .brand-actions a:not(.gold) { display: none; }
  .page-hero { padding: 28px 16px 24px; }
  .search-block-inner { padding: 14px 16px 12px; }
  .search-block { top: 60px; }
  .search-row select { flex: 1; min-width: 0; }
  .results-block { padding: 16px; }
  .result-card { grid-template-columns: 1fr; gap: 8px; padding: 14px; }
  .result-code-block { flex-direction: row; align-items: center; gap: 8px; flex-wrap: wrap; }
  .result-code { font-size: 18px; }
  .duty-grid { grid-template-columns: repeat(2, 1fr); }
}