/* CKJ-ESP interactive reading courses (zhuyin, hangul, ...).
   Component styles only, colors/fonts come from the site's own tokens
   in style.css (already loaded via base.html), except: two semantic
   colors this feature needs that the rest of the site doesn't
   (correct/incorrect quiz feedback), and --ic-plain-cjk, both defined
   locally below. */

.ic-wrap {
  --ic-wine: #9c3b4a;
  --ic-wine-ink: #ffffff;
  --ic-wine-soft: #9c3b4a1a;
  --ic-wine-soft-strong: #9c3b4a30;
  --ic-amber: #92660f;
  --ic-amber-soft: #92660f14;
  --ic-amber-line: #92660f40;
  /* var(--sans) leads with "HanWang Kai ChuIn" — a real Taiwanese
     teaching font whose name says exactly what it does: 注音 (zhuyin)
     readings are baked into the hanzi glyphs themselves, meant to help
     a reader in running prose. In a "guess how this is read" quiz
     prompt that's the answer handed away for free, so anywhere a
     practice/reference hanzi is the actual quiz target skips straight
     to a plain system CJK stack instead. */
  --ic-plain-cjk: "PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", "Noto Sans TC",
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  max-width: 660px;
  margin: 0 auto;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ic-wrap {
    --ic-wine: #e0836f;
    --ic-wine-ink: #2a0f0c;
    --ic-wine-soft: #e0836f1f;
    --ic-wine-soft-strong: #e0836f3a;
    --ic-amber: #d9ac4f;
    --ic-amber-soft: #d9ac4f1a;
    --ic-amber-line: #d9ac4f4a;
  }
}
:root[data-theme="dark"] .ic-wrap {
  --ic-wine: #e0836f;
  --ic-wine-ink: #2a0f0c;
  --ic-wine-soft: #e0836f1f;
  --ic-wine-soft-strong: #e0836f3a;
  --ic-amber: #d9ac4f;
  --ic-amber-soft: #d9ac4f1a;
  --ic-amber-line: #d9ac4f4a;
}

.ic-dek { color: var(--ink-muted); font-size: 0.96rem; max-width: 50ch; margin: 0.6rem 0 0; }
.ic-scope-note { color: var(--ink-faint); font-size: 0.85rem; max-width: 56ch; margin: 0.6rem 0 0; }

.ic-resources { list-style: none; padding: 0; margin: 0.5rem 0 1.2rem; display: flex; flex-direction: column; gap: 0.25rem; max-width: 56ch; }
.ic-resources li { font-size: 0.85rem; color: var(--ink-faint); }
.ic-resources a { color: var(--accent); font-weight: 600; }

/* For kanji mentioned in passing in the kana course's own prose (五十音,
   濁音, 拗音...): var(--sans) would still show a Mandarin zhuyin reading
   next to a term meant to be read in Japanese, which is wrong, not just
   redundant like on the zhuyin course's own quiz targets. */
.ic-plain-term { font-family: var(--ic-plain-cjk); }

.ic-stepper { display: flex; gap: 0.35rem; margin-top: 1.4rem; flex-wrap: wrap; }
.ic-stepper button {
  appearance: none; border: 1px solid var(--line-strong); background: var(--surface);
  color: var(--ink-muted); font-family: var(--mono); font-size: 0.78rem;
  padding: 0.45rem 0.85rem; border-radius: 999px; cursor: pointer;
  display: flex; align-items: center; gap: 0.4rem;
}
.ic-stepper button .n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.15rem; height: 1.15rem; border-radius: 50%; background: var(--line);
  color: var(--ink-muted); font-size: 0.68rem; font-weight: 700;
}
.ic-stepper button.active { border-color: var(--accent); color: var(--accent); }
.ic-stepper button.active .n { background: var(--accent); color: var(--accent-ink); }
.ic-stepper button.repaso { border-style: dashed; }

.ic-lesson { display: none; margin-top: 2.1rem; }
.ic-lesson.active { display: block; }
.ic-lesson h2 { font-family: var(--sans); font-size: 1.35rem; margin: 0 0 0.2rem; text-wrap: balance; color: var(--ink); }
.ic-lesson .ic-subtitle { color: var(--ink-muted); font-size: 0.92rem; margin: 0 0 1.2rem; }
.ic-lesson p { margin: 0 0 1rem; }
.ic-lesson strong { color: var(--ink); }

.ic-callout { background: var(--ic-amber-soft); border: 1px solid var(--ic-amber-line); border-radius: 0.7rem; padding: 1rem 1.1rem; margin: 1.3rem 0; }
.ic-callout .ic-tag { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ic-amber); font-weight: 700; }
.ic-callout p { margin: 0.5rem 0 0; font-size: 0.94rem; }
.ic-callout p:last-child { margin-bottom: 0; }

.ic-subhead { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-faint); margin: 1.6rem 0 0.7rem; display: flex; align-items: center; gap: 0.5rem; justify-content: space-between; }
.ic-subhead .ic-legend { display: flex; gap: 0.6rem; font-size: 0.66rem; text-transform: none; letter-spacing: 0; color: var(--ink-faint); }
.ic-subhead .ic-legend span { display: inline-flex; align-items: center; gap: 0.25rem; }
.ic-dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; display: inline-block; }
.ic-dot.weak { background: var(--ic-wine); } .ic-dot.ok { background: var(--ic-amber); } .ic-dot.good { background: var(--accent); } .ic-dot.unseen { background: var(--line-strong); }

.ic-glyph-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); gap: 0.5rem; }
.ic-glyph-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 0.6rem;
  padding: 0.65rem 0.4rem 0.55rem; text-align: center; cursor: pointer; position: relative;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.ic-glyph-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow); }
.ic-glyph-card[aria-expanded="true"] { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.ic-glyph-card .ic-mastery-dot { position: absolute; top: 0.4rem; right: 0.4rem; width: 0.45rem; height: 0.45rem; border-radius: 50%; background: var(--line-strong); }
.ic-glyph-card .ic-glyph { font-family: var(--sans); font-size: 1.7rem; line-height: 1; display: block; color: var(--ink); }
.ic-glyph-card .ic-romaji { display: block; margin-top: 0.3rem; font-family: var(--mono); font-size: 0.74rem; color: var(--accent); font-weight: 600; }
.ic-glyph-card .ic-note { display: none; margin-top: 0.5rem; padding-top: 0.5rem; border-top: 1px dashed var(--line-strong); font-size: 0.72rem; line-height: 1.35; color: var(--ink-muted); text-align: left; }
.ic-glyph-card[aria-expanded="true"] .ic-note { display: block; }

.ic-word-row { display: flex; flex-direction: column; gap: 0.5rem; margin: 0.9rem 0 0.4rem; }
.ic-word-card { position: relative; display: grid; grid-template-columns: 3rem 1fr; gap: 0.9rem; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 0.6rem; padding: 0.65rem 0.9rem; }
.ic-word-card .ic-hw { font-family: var(--ic-plain-cjk); font-size: 1.9rem; text-align: center; color: var(--ink); }
.ic-word-card .ic-info b.ic-form { font-family: var(--sans); color: var(--accent); font-size: 0.98rem; }
.ic-word-card .ic-info b.ic-form .ic-part-sep { font-size: 0.78rem; color: var(--ink-muted); font-weight: 400; }
.ic-word-card .ic-info .ic-romaji { font-family: var(--mono); font-size: 0.82rem; color: var(--ink-muted); margin-left: 0.4rem; }
.ic-word-card .ic-info .ic-gloss { display: block; font-size: 0.85rem; color: var(--ink-muted); margin-top: 0.15rem; }

/* Speaker button: absolutely positioned (top-right corner) inside a word
   card, but static/inline wherever else audioButton() gets dropped
   (graduation's sentence/current-syllable displays) -- .ic-word-card is
   the only ancestor that opts into the absolute layout. */
.ic-audio-btn { background: none; border: none; font-size: 1rem; line-height: 1; cursor: pointer; color: var(--ink-faint); padding: 0.15rem; vertical-align: middle; }
.ic-audio-btn:hover { color: var(--accent); }
.ic-word-card > .ic-audio-btn { position: absolute; top: 0.4rem; right: 0.5rem; }
.ic-word-card.ic-clickable-audio { cursor: pointer; transition: border-color 0.15s ease; }
.ic-word-card.ic-clickable-audio:hover { border-color: var(--accent); }
.ic-word-card.ic-clickable-audio:hover > .ic-audio-btn { color: var(--accent); }

.ic-hint { margin-top: 1rem; font-size: 0.8rem; color: var(--ink-faint); }

.ic-practice { margin-top: 1.8rem; padding-top: 1.6rem; border-top: 1px solid var(--line); }
.ic-practice .ic-subhead { margin-top: 0; }
.ic-practice-bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.ic-score { font-family: var(--mono); font-size: 0.82rem; color: var(--ink-muted); }
.ic-score b { color: var(--ink); font-variant-numeric: tabular-nums; }
.ic-score .ic-streak { color: var(--accent); }

.ic-level-switch { display: inline-flex; gap: 0.25rem; padding: 0.2rem; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; }
.ic-level-switch button { appearance: none; border: none; background: transparent; color: var(--ink-muted); font-family: var(--serif); font-weight: 600; font-size: 0.78rem; padding: 0.35rem 0.7rem; border-radius: 999px; cursor: pointer; }
.ic-level-switch button.active { background: var(--accent); color: var(--accent-ink); }

.ic-flashcard { background: var(--surface); border: 1px solid var(--line); border-radius: 0.9rem; box-shadow: var(--shadow); padding: 2.1rem 1.4rem; text-align: center; margin-bottom: 1rem; }
.ic-flashcard .ic-prompt { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 0.8rem; }
.ic-flashcard .ic-glyph { font-family: var(--sans); font-size: 3.6rem; line-height: 1; color: var(--ink); }
.ic-flashcard .ic-glyph.ic-hw { font-size: 3rem; font-family: var(--ic-plain-cjk); }
.ic-flashcard .ic-sub { margin-top: 0.5rem; font-family: var(--mono); font-size: 1rem; color: var(--ink-muted); }

.ic-answers { display: grid; grid-template-columns: 1fr 1fr; gap: 0.55rem; }
.ic-answer {
  appearance: none; border: 1px solid var(--line-strong); background: var(--surface);
  color: var(--ink); font-family: var(--mono); font-size: 0.98rem; font-weight: 600;
  padding: 0.8rem 0.5rem; border-radius: 0.6rem; cursor: pointer;
  transition: transform 0.08s ease, border-color 0.15s ease, background 0.15s ease;
}
.ic-answer:hover:not(:disabled) { border-color: var(--accent); }
.ic-answer:active:not(:disabled) { transform: scale(0.98); }
.ic-answer:disabled { cursor: default; }
.ic-answer.correct { background: var(--accent-soft-strong); border-color: var(--accent); color: var(--accent); }
.ic-answer.incorrect { background: var(--ic-wine-soft-strong); border-color: var(--ic-wine); color: var(--ic-wine); }

.ic-typed-display {
  min-height: 2.6rem; border: 1px dashed var(--line-strong); border-radius: 0.6rem;
  background: var(--surface); font-family: var(--sans); font-size: 1.5rem;
  display: flex; align-items: center; justify-content: center; letter-spacing: 0.1em;
  color: var(--ink); padding: 0.4rem; margin-bottom: 0.8rem;
}
.ic-typed-display.empty { color: var(--ink-faint); font-family: var(--serif); font-size: 0.85rem; letter-spacing: 0; }
.ic-kb { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 0.9rem; }
.ic-kb-row { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.ic-kb-row .ic-kb-label { font-family: var(--mono); font-size: 0.62rem; color: var(--ink-faint); align-self: center; width: 3.4rem; text-transform: uppercase; letter-spacing: 0.05em; }
.ic-kb-key {
  appearance: none; border: 1px solid var(--line-strong); background: var(--surface);
  color: var(--ink); font-family: var(--sans); font-size: 1.1rem; min-width: 2.4rem;
  padding: 0.4rem 0.3rem; border-radius: 0.45rem; cursor: pointer;
}
.ic-kb-key:hover { border-color: var(--accent); }
.ic-kb-key:active { background: var(--accent-soft); }
.ic-kb-controls { display: flex; gap: 0.5rem; }
.ic-kb-controls button {
  appearance: none; border: 1px solid var(--line-strong); background: var(--surface);
  color: var(--ink-muted); font-family: var(--serif); font-weight: 600; font-size: 0.82rem;
  padding: 0.5rem 0.9rem; border-radius: 0.5rem; cursor: pointer;
}
.ic-kb-controls button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.ic-kb-controls button:disabled { opacity: 0.4; cursor: default; }

.ic-feedback { min-height: 1.4rem; margin-top: 0.85rem; text-align: center; font-size: 0.88rem; font-weight: 600; }
.ic-feedback.good { color: var(--accent); }
.ic-feedback.bad { color: var(--ic-wine); }

.ic-next-row { display: flex; justify-content: center; margin-top: 0.5rem; }
.ic-next-btn {
  appearance: none; border: none; background: var(--accent); color: var(--accent-ink);
  font-family: var(--serif); font-weight: 600; font-size: 0.88rem;
  padding: 0.6rem 1.5rem; border-radius: 999px; cursor: pointer; visibility: hidden;
}
.ic-next-btn.show { visibility: visible; }

.ic-lesson-nav { display: flex; justify-content: space-between; margin-top: 2.2rem; gap: 0.6rem; }
.ic-lesson-nav button {
  appearance: none; border: 1px solid var(--line-strong); background: var(--surface);
  color: var(--ink); font-family: var(--serif); font-weight: 600; font-size: 0.86rem;
  padding: 0.6rem 1.1rem; border-radius: 0.6rem; cursor: pointer;
}
.ic-lesson-nav button:disabled { opacity: 0.35; cursor: default; }

.ic-foot-note { margin-top: 3rem; padding-top: 1.4rem; border-top: 1px solid var(--line); font-size: 0.8rem; color: var(--ink-faint); }

.ic-grad-target { text-align: center; padding: 1.3rem 1rem; background: var(--surface); border: 1px solid var(--line); border-radius: 0.9rem; margin: 1rem 0 1.4rem; display: flex; flex-direction: column; gap: 0.35rem; }
.ic-grad-target .ic-grad-hanzi { font-family: var(--ic-plain-cjk); font-size: 1.7rem; color: var(--ink); }
.ic-grad-target .ic-grad-pinyin { font-family: var(--mono); font-size: 0.95rem; color: var(--ink-muted); }
.ic-grad-target .ic-grad-es { font-family: var(--serif); font-size: 0.88rem; color: var(--ink-faint); font-style: italic; }

.ic-grad-progress { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.5rem; margin: 0 0 1.2rem; }
.ic-grad-progress-label { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); }
.ic-grad-progress-text { font-family: var(--sans); font-size: 1.1rem; color: var(--accent); letter-spacing: 0.04em; }

.ic-kb-tone.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

.ic-grad-miss { color: var(--ic-wine); }

.ic-grad-done { text-align: center; padding: 1.6rem 1rem; }
.ic-grad-celebrate { font-family: var(--sans); font-size: 1.1rem; color: var(--ink); }
.ic-grad-score { font-family: var(--mono); font-size: 0.85rem; color: var(--ink-muted); margin-top: 0.3rem; }
.ic-grad-final { font-family: var(--sans); font-size: 1.5rem; color: var(--accent); letter-spacing: 0.08em; margin: 0.6rem 0 1.1rem; text-wrap: balance; }

@media (max-width: 380px) {
  .ic-answers { grid-template-columns: 1fr; }
  .ic-flashcard .ic-glyph { font-size: 3rem; }
}