:root {
  color-scheme: light dark;
  --bg: #f6f4ee;
  --surface: #fffdf8;
  --ink: #1c1d20;
  --muted: #6d6b62;
  --line: #e3ddd0;
  --focus: #2f6f5e;
  --btn-bg: #23252a;
  --btn-ink: #f6f4ee;
  --rank1: #123f63;
  --rank2: #2f6690;
  --rank3: #4f7590;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111214;
    --surface: #191b1e;
    --ink: #ecece7;
    --muted: #9a978d;
    --line: #2a2d31;
    --focus: #7fc2ab;
    --btn-bg: #ecece7;
    --btn-ink: #17181b;
    --rank1: #b9d7ef;
    --rank2: #8fb4cf;
    --rank3: #7f95a5;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
.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;
}
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.shell { max-width: 420px; margin: 0 auto; padding: 24px 18px 40px; }
.brand { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.brand strong { font-family: Georgia, "Times New Roman", serif; font-size: 15px; letter-spacing: .04em; }

.search { display: flex; gap: 8px; margin: 16px 0 18px; }
.search input {
  flex: 1; min-width: 0; height: 44px; padding: 0 14px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--surface); color: inherit; font: inherit;
}
.search input::placeholder { color: var(--muted); }
.search input:focus { outline: 2px solid var(--focus); outline-offset: 1px; border-color: transparent; }
.search button {
  height: 44px; padding: 0 16px; border: 0; border-radius: 10px;
  background: var(--btn-bg); color: var(--btn-ink); font: 600 14px/1 inherit;
  cursor: pointer;
}
.search button:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 16px 14px;
  margin: 0 0 12px;
}
.head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.word {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 26px; line-height: 1.2; font-weight: 600; letter-spacing: -.01em;
  word-break: break-word;
}
.badge {
  flex: none; margin-top: 3px; padding: 3px 9px; border-radius: 999px;
  font-size: 11px; font-weight: 700; letter-spacing: .03em; white-space: nowrap;
}
.lv4 { color: #22654b; background: #e2f0e6; }
.lv8 { color: #8a5310; background: #f7ecd8; }
.lv8p { color: #59459a; background: #ece7f8; }
@media (prefers-color-scheme: dark) {
  .lv4 { color: #9ad6b8; background: #163326; }
  .lv8 { color: #edc386; background: #382a13; }
  .lv8p { color: #c3b2f0; background: #2a2340; }
}

.def {
  margin: 8px 0 0;
  font-size: 15px; line-height: 1.7;
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 4;
  overflow: hidden;
}
.def.expanded { display: block; }
.def.empty { color: var(--muted); }
.more {
  margin: 2px 0 0; padding: 0; border: 0; background: none;
  color: var(--muted); font: 12px/1.6 inherit; cursor: pointer;
}
.more:hover { color: var(--ink); }
.meta {
  margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 18px;
  font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums;
}
.rank { font-weight: 600; }
.rank.f1 { color: var(--rank1); }
.rank.f2 { color: var(--rank2); }
.rank.f3 { color: var(--rank3); }

.empty-state { padding: 28px 2px 8px; }
.empty-state p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.notice { margin: -6px 0 14px; font-size: 13px; color: #a3342c; }
@media (prefers-color-scheme: dark) { .notice { color: #f0a49c; } }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 4px 12px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--surface); color: var(--ink);
  font: 13px/1.6 ui-monospace, "SF Mono", Consolas, monospace; cursor: pointer;
}
.chip:hover { border-color: var(--muted); }
.chip:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.legend {
  margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--line);
  font-size: 12px; line-height: 1.9; color: var(--muted);
}
.error { margin: 20px 0; color: #a3342c; font-size: 14px; }
@media (prefers-color-scheme: dark) { .error { color: #f0a49c; } }

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