:root {
  color-scheme: dark;
  --bg: #0b0b0b;
  --panel: #111;
  --text: #ededed;
  --muted: #888;
  --line: #2b2b2b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
}

header {
  height: 56px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  color: var(--muted);
  font: 12px/1 ui-monospace, monospace;
  letter-spacing: .12em;
}

header [lang="ja"] {
  color: var(--text);
  font: 600 20px/1 "Yu Gothic", sans-serif;
  letter-spacing: 0;
}

main {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 80px;
}

label,
.results-heading,
.input-meta { font: 13px/1.4 ui-monospace, monospace; }

label { display: block; margin-bottom: 12px; color: var(--muted); }

textarea {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 0;
  outline: none;
  background: var(--panel);
  color: var(--text);
  font: 400 clamp(24px, 5vw, 36px)/1.6 "Yu Gothic", sans-serif;
}

textarea:focus { border-color: #666; }
textarea::placeholder { color: #555; }

.input-meta,
.results-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
}

.input-meta { padding: 10px 0 42px; }

button {
  border: 0;
  padding: 4px 0;
  background: none;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
}

button:hover,
button:focus-visible { color: var(--text); }

.results-heading {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
}

.results-heading span:last-child { color: var(--muted); }
.word-results { margin-bottom: 42px; }

.word-row {
  display: grid;
  grid-template-columns: minmax(100px, .7fr) minmax(120px, .8fr) 2fr;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.word-written { font-size: 20px; }
.word-reading { color: #bbb; font-size: 14px; }
.word-meaning { color: var(--muted); font-size: 14px; line-height: 1.5; }
.kanji-results { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }

.kanji-card {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 18px;
  min-width: 0;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.kanji-card:nth-child(odd) { padding-right: 24px; }
.kanji-card:nth-child(even) { padding-left: 24px; border-left: 1px solid var(--line); }

.kanji-glyph {
  display: block;
  color: var(--text);
  font-size: 46px;
  line-height: 1.15;
  text-align: center;
}

.kanji-info { min-width: 0; }
.kanji-info strong { display: block; margin-bottom: 8px; font-size: 15px; line-height: 1.5; font-weight: 500; }
.kanji-info span { display: block; overflow-wrap: anywhere; color: var(--muted); font-size: 13px; line-height: 1.7; }
.empty { grid-column: 1 / -1; padding: 28px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 14px; }

.translator {
  margin-top: 48px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.translator summary {
  padding: 16px 0;
  cursor: pointer;
  font: 13px/1.4 ui-monospace, monospace;
}

.translator summary span { float: right; color: var(--muted); }
.translator[open] summary { border-bottom: 1px solid var(--line); }

.translator-controls {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  color: var(--muted);
  font: 13px/1.4 ui-monospace, monospace;
}

.translator-controls button:first-child { justify-self: start; color: var(--text); }
.translator-controls span { justify-self: end; }
.translator textarea { min-height: 110px; font-size: 20px; }

.translate-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 52px;
  color: var(--muted);
  font: 13px/1.4 ui-monospace, monospace;
}

#translate-button { color: var(--text); }
#translate-button:disabled { color: var(--muted); cursor: wait; }

.translation-output {
  min-height: 58px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  font-size: 18px;
  line-height: 1.6;
}

footer {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 20px 0 32px;
  color: var(--muted);
  font-size: 12px;
}

footer a { color: inherit; }
footer a:hover { color: var(--text); }

@media (max-width: 620px) {
  main { padding-top: 28px; }
  .word-row { grid-template-columns: 1fr 1fr; gap: 4px 14px; }
  .word-meaning { grid-column: 1 / -1; }
  .kanji-results { grid-template-columns: 1fr; }
  .kanji-card:nth-child(odd),
  .kanji-card:nth-child(even) { padding: 20px 0; border-left: 0; }
}