:root {
  --bg: #f3efe6;
  --ink: #1c1915;
  --muted: #5e584e;
  --card: #fffdf8;
  --line: #d9d0c2;
  --pine: #16352f;
  --pine-2: #214940;
  --copper: #9a4e2c;
  --copper-soft: #f6e6da;
  --warn: #8a4b12;
  --shadow: 0 18px 40px rgba(28, 25, 21, 0.08);
  --sans: "PingFang HK", "PingFang TC", "Noto Sans CJK HK", "Noto Sans HK", "WenQuanYi Micro Hei", "Microsoft JhengHei", "Segoe UI", sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti TC", "PMingLiU", Georgia, serif;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--ink);
  background:
    radial-gradient(1000px 420px at 0% -10%, rgba(154, 78, 44, 0.12), transparent 55%),
    linear-gradient(180deg, #f7f3ea 0%, #efe6d6 100%);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
}

main { flex: 1; }

.wrap {
  width: min(1120px, calc(100% - 32px));
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  background: white;
  color: var(--ink);
  padding: 8px 12px;
  z-index: 3;
}

.skip:focus { top: 12px; }

header {
  background: var(--pine);
  color: #f6f1e6;
  border-bottom: 4px solid var(--copper);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-end;
  padding: 28px 0 22px;
}

.brand { display: flex; gap: 14px; align-items: flex-start; }

.mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(243, 239, 230, 0.45);
  font-family: var(--serif);
  letter-spacing: 0.04em;
  flex: none;
}

.kicker, .version {
  margin: 0;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.version { color: #e4b08a; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; }

h1 { margin: 2px 0 6px; font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.15; }

.tagline { margin: 0; max-width: 42rem; color: rgba(246, 241, 230, 0.82); }

.lang {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
}

.lang span { font-size: 0.85rem; color: rgba(246, 241, 230, 0.75); }

.lang button, .mode button, .search-row button, .chip, #clear-filters, .result-foot a {
  font: inherit;
  cursor: pointer;
}

.lang button {
  border: 1px solid rgba(246, 241, 230, 0.45);
  background: transparent;
  color: #f6f1e6;
  padding: 6px 10px;
}

.lang button[aria-pressed="true"] {
  background: #f3efe6;
  color: var(--pine);
  border-color: #f3efe6;
}

main { padding: 28px 0 48px; }

.search-panel, .banner, .result, .empty {
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.search-panel { padding: 18px; }

.search-row, .filter-head, .result-meta, .result-foot, .mode, .range {
  display: flex;
  gap: 10px;
  align-items: center;
}

.search-label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 6px; }

.search-row { align-items: stretch; }

.search-row input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 12px 14px;
}

.search-row button {
  border: 0;
  background: var(--copper);
  color: #fffaf5;
  padding: 0 18px;
}

.filter-head {
  justify-content: space-between;
  margin-top: 18px;
}

.filter-head h2 { margin: 0; font-size: 1.25rem; }

#clear-filters {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 6px 10px;
}

.filter-grid {
  display: grid;
  gap: 16px;
  margin-top: 8px;
}

.filter-block {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
}

legend, .filter-block > p.block-label {
  padding: 0;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.chips, .mode { flex-wrap: wrap; }

.chip, .mode button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 6px 10px;
}

.chip[aria-pressed="true"], .mode button[aria-pressed="true"] {
  background: var(--pine);
  border-color: var(--pine);
  color: #f6f1e6;
}

.year-filter { padding-top: 4px; }

.hint { margin: 8px 0; color: var(--muted); font-size: 0.92rem; }

.hint.is-error { color: var(--warn); }

#year-picks, #year-range { opacity: 0.55; }

#year-picks.is-active, #year-range.is-active { opacity: 1; }

.range { align-items: end; margin-top: 8px; }

.range label { display: grid; gap: 4px; font-size: 0.85rem; color: var(--muted); }

.range input {
  width: 8.5rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 8px 10px;
}

input[type="number"] { appearance: textfield; }

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { appearance: none; margin: 0; }

.banner {
  margin-top: 16px;
  padding: 10px 14px;
  box-shadow: none;
}

.banner.warn {
  background: #f8efe4;
  border-color: #e2c2a8;
  color: var(--warn);
}

.results-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin: 22px 0 12px;
}

.results-head h2 { margin: 0; font-size: 1.5rem; }

.results-head p { margin: 0; color: var(--muted); }

.results-list { display: grid; gap: 12px; }

.result { border-left: 4px solid var(--copper); padding: 16px 16px 14px; }

.result-meta { justify-content: space-between; align-items: flex-start; gap: 12px; }

.stamps, .tags, .result-foot { display: flex; flex-wrap: wrap; gap: 6px; }

.stamp, .tags li, .badge, .year-stamp, .page {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border: 1px solid var(--line);
  background: #f7f3ea;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.year-stamp {
  background: var(--copper-soft);
  border-color: #e4c2ad;
  color: var(--copper);
  font-variant-numeric: tabular-nums;
}

.year-stamp.unknown {
  background: transparent;
  color: var(--muted);
  border-style: dashed;
}

.result h3 { margin: 10px 0 4px; font-size: 1.25rem; line-height: 1.3; }

.standard { margin: 0 0 8px; color: var(--muted); }

.standard span:first-child { margin-right: 8px; }

.tags { list-style: none; margin: 0 0 10px; padding: 0; }

.excerpt {
  margin: 8px 0 12px;
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

.excerpt span {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.excerpt p { margin: 4px 0 0; white-space: pre-wrap; }

.score { margin: 0; text-align: right; min-width: 6.5rem; }

.score span { display: block; font-size: 0.75rem; color: var(--muted); }

.score strong {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.result-foot { align-items: center; }

.result-foot a {
  color: var(--pine);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.badge.catalog { background: #e7f0ec; border-color: #b7cdc4; color: var(--pine); }

.badge.missing { background: var(--copper-soft); border-color: #e4c2ad; color: var(--warn); }

.muted { color: var(--muted); }

.empty { padding: 28px 20px; text-align: center; }

.empty h3 { margin: 0 0 8px; }

.empty p { margin: 0 auto; max-width: 40rem; color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 18px 0 28px;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p { margin: 0; }

:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

@media (min-width: 800px) {
  .filter-grid { grid-template-columns: 1fr 1fr; }
  .year-filter { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .header-inner, .search-row, .results-head, .result-meta { flex-direction: column; align-items: stretch; }
  .score { text-align: left; }
  .lang { align-self: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}