:root {
  --bg: #16161a;
  --bg-raised: #1f1f25;
  --bg-card: #24242c;
  --ink: #eae6dd;
  --ink-soft: #b5afa2;
  --muted: #7a7568;
  --hair: #33323b;
  --accent: #e0644a;       /* noren red-orange */
  --accent-soft: #b34e3a;
  --good: #7fb069;
  --mid: #d9a441;
  --bad: #c65b4e;
  --on-accent: #fff;
  --jp-serif: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- top bar ---- */
.topbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem 1.4rem;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--hair);
  flex-wrap: wrap;
}
.logo {
  font-family: var(--jp-serif);
  font-size: 1.4rem;
  font-weight: 500;
  margin: 0;
  color: var(--accent);
}
.logo span {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  margin-left: 0.4rem;
}
.mode-nav { display: flex; gap: 0.25rem; }
.mode-nav button {
  background: none;
  border: 1px solid transparent;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 0.45rem 0.9rem;
  border-radius: 4px;
  cursor: pointer;
}
.mode-nav button:hover { color: var(--ink); background: var(--bg-card); }
.mode-nav button.active {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--bg-card);
}
.topbar-right { margin-left: auto; display: flex; gap: 0.5rem; }
select {
  background: var(--bg-card);
  color: var(--ink);
  border: 1px solid var(--hair);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.78rem;
  padding: 0.4rem 0.6rem;
}

/* ---- main ---- */
main {
  flex: 1;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.4rem 4rem;
}
.empty { color: var(--muted); text-align: center; margin-top: 4rem; }
.big { font-size: 2.2rem; }
.ja { font-family: var(--jp-serif); }
.romaji { font-style: italic; color: var(--ink-soft); }
.kana { font-family: var(--jp-serif); color: var(--ink-soft); }
.note { color: var(--muted); font-size: 0.88rem; margin-top: 0.4rem; }

button {
  font-family: var(--mono);
  cursor: pointer;
}

/* ---- browse ---- */
.browse-group h2 {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid var(--hair);
  padding-bottom: 0.4rem;
  margin: 2.2rem 0 0.6rem;
}
.browse-group h2 .count { color: var(--muted); font-weight: 400; }
.browse-row {
  display: grid;
  grid-template-columns: 2.2rem 1fr 1.4fr 2.2rem;
  gap: 0.9rem;
  align-items: start;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--hair);
}
.browse-row.known { opacity: 0.45; }
.browse-row .ja { font-size: 1.15rem; }
.browse-row .romaji { font-size: 0.85rem; }
.browse-row .en { font-size: 0.98rem; }
.browse-row .note { font-size: 0.8rem; }
.browse-row .play, .browse-row .known-toggle {
  background: var(--bg-card);
  border: 1px solid var(--hair);
  color: var(--ink-soft);
  border-radius: 4px;
  width: 2rem;
  height: 2rem;
  font-size: 0.75rem;
}
.browse-row .play:hover { color: var(--accent); border-color: var(--accent-soft); }
.browse-row .known-toggle:hover { color: var(--good); }
.browse-row.known .known-toggle { color: var(--good); }

/* ---- flashcards ---- */
.flash-wrap { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; margin-top: 2rem; }
.flash-card {
  background: var(--bg-card);
  border: 1px solid var(--hair);
  border-radius: 10px;
  width: 100%;
  max-width: 560px;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 0.6rem;
  padding: 2rem;
  cursor: pointer;
  user-select: none;
}
.flash-card:focus-visible { outline: 2px solid var(--accent); }
.flash-controls { display: flex; gap: 0.6rem; flex-wrap: wrap; justify-content: center; }
.flash-controls button {
  background: var(--bg-card);
  border: 1px solid var(--hair);
  color: var(--ink);
  border-radius: 6px;
  padding: 0.6rem 1.1rem;
  font-size: 0.82rem;
}
.flash-controls button:hover { border-color: var(--accent-soft); color: var(--accent); }
.flash-meta { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }

/* ---- quiz ---- */
.quiz-wrap { max-width: 560px; margin: 2rem auto 0; display: flex; flex-direction: column; gap: 1.5rem; }
.quiz-progress { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); text-align: center; }
.quiz-question { text-align: center; min-height: 5.5rem; display: flex; flex-direction: column; justify-content: center; gap: 0.4rem; }
.quiz-audio {
  background: var(--bg-card);
  border: 1px solid var(--accent-soft);
  color: var(--accent);
  border-radius: 8px;
  font-size: 1.1rem;
  padding: 1rem 2rem;
  align-self: center;
}
.quiz-options { display: grid; gap: 0.6rem; }
.quiz-option {
  background: var(--bg-card);
  border: 1px solid var(--hair);
  color: var(--ink);
  border-radius: 8px;
  padding: 0.9rem 1.2rem;
  font-size: 1rem;
  text-align: left;
  font-family: inherit;
}
.quiz-option .ja { font-size: 1.1rem; }
.quiz-option .romaji { font-size: 0.82rem; margin-left: 0.5rem; }
.quiz-option:hover:not(:disabled) { border-color: var(--accent-soft); }
.quiz-option.correct { border-color: var(--good); background: color-mix(in srgb, var(--good) 12%, var(--bg-card)); }
.quiz-option.incorrect { border-color: var(--bad); background: color-mix(in srgb, var(--bad) 12%, var(--bg-card)); }
.quiz-done { text-align: center; display: flex; flex-direction: column; gap: 1rem; align-items: center; margin-top: 3rem; }
.quiz-done button {
  background: var(--accent);
  border: none;
  color: #fff;
  border-radius: 6px;
  padding: 0.7rem 1.6rem;
  font-size: 0.9rem;
}

.quiz-next { margin: 1.2rem auto 0; display: block; border-radius: 6px; padding: 0.6rem 1.4rem; font-size: 0.85rem; border: 1px solid var(--accent); }

/* ---- pronounce ---- */
.say-wrap { display: flex; flex-direction: column; align-items: center; gap: 1.4rem; margin-top: 2rem; }
.say-card {
  background: var(--bg-card);
  border: 1px solid var(--hair);
  border-radius: 10px;
  width: 100%;
  max-width: 560px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  padding: 2rem;
}
.say-card .en { color: var(--ink-soft); font-size: 0.95rem; }
.say-card .best { font-family: var(--mono); font-size: 0.72rem; color: var(--mid); margin-top: 0.4rem; }
.say-controls { display: flex; gap: 0.6rem; flex-wrap: wrap; justify-content: center; }
.say-controls button {
  background: var(--bg-card);
  border: 1px solid var(--hair);
  color: var(--ink);
  border-radius: 6px;
  padding: 0.6rem 1.1rem;
  font-size: 0.82rem;
}
.say-controls button:hover { border-color: var(--accent-soft); color: var(--accent); }
.say-controls .record { border-color: var(--accent-soft); color: var(--accent); }
.say-controls button.report { border-color: transparent; color: var(--muted); font-size: 0.8rem; }
.say-controls button.report:hover { color: var(--bad); border-color: var(--bad); }
.toast { position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%); background: var(--bg-card); color: var(--ink);
  border: 1px solid var(--good); border-radius: 6px; padding: 0.6rem 1rem; font-size: 0.9rem; z-index: 50; max-width: min(90vw, 480px); text-align: center; }
.toast.warn { border-color: var(--bad); }
.say-controls .record.listening {
  background: var(--accent);
  color: #fff;
  animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.6; } }
@media (prefers-reduced-motion: reduce) {
  .say-controls .record.listening { animation: none; }
}
.say-result { min-height: 6rem; }
.score {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-family: var(--mono);
}
.score-num { font-size: 2.4rem; font-weight: 700; }
.score.high .score-num { color: var(--good); }
.score.mid .score-num { color: var(--mid); }
.score.low .score-num { color: var(--bad); }
.score .verdict { font-size: 0.95rem; }
.score .heard { font-size: 0.78rem; color: var(--muted); }
.score.low { color: var(--ink-soft); font-size: 0.85rem; }

/* ---- shared by drill / dialogues / course ---- */
.topbar-right[hidden] { display: none; }
button.primary, .say-controls button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
button.primary:hover, .say-controls button.primary:hover { background: var(--accent-soft); color: var(--on-accent); }
button:disabled { opacity: 0.45; cursor: default; }
.back-link {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.78rem;
  padding: 0;
  margin-bottom: 1rem;
}
.back-link:hover { color: var(--accent); }

/* ---- drill ---- */
.drill-wrap { display: flex; flex-direction: column; align-items: center; gap: 1.2rem; margin-top: 1.5rem; }
.drill-intro { max-width: 560px; text-align: center; }
.drill-intro h2 { font-family: var(--mono); font-size: 0.9rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); }
.drill-intro button { border-radius: 6px; padding: 0.7rem 1.6rem; font-size: 0.9rem; margin-top: 0.6rem; border: 1px solid var(--accent); }
.drill-progress { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); }
.drill-card {
  background: var(--bg-card);
  border: 1px solid var(--hair);
  border-radius: 10px;
  width: 100%;
  max-width: 560px;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.6rem;
  padding: 1.6rem 2rem;
}
.drill-card .en.big { font-size: 1.5rem; }
.drill-phase {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--hair);
  color: var(--ink-soft);
}
.drill-phase.listen { border-color: var(--accent); color: var(--accent); animation: pulse 1.2s ease-in-out infinite; }
.drill-phase.answer { border-color: var(--good); color: var(--good); }
.drill-answer { min-height: 6.5rem; }
.drill-help { max-width: 560px; text-align: center; }
.drill-detail { width: 100%; display: flex; justify-content: center; }
.drill-detail .detail { font-size: 0.84rem; border-top: 1px solid var(--hair); padding-top: 0.8rem; }
@media (prefers-reduced-motion: reduce) { .drill-phase.listen { animation: none; } }

.drill-hint { font-size: 1.3rem; }
.score .tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--mid);
  color: var(--mid);
  border-radius: 999px;
  padding: 0 0.45rem;
  margin-left: 0.3rem;
}

.heard-romaji { font-style: italic; color: var(--ink-soft); }
.dlg-heard { grid-column: 2; font-size: 0.75rem; color: var(--muted); }

/* ---- dialogues ---- */
.dlg-wrap { max-width: 680px; margin: 0 auto; }
.dlg-head h2, .course-head h2, .course-hero h2 { font-family: var(--jp-serif); font-weight: 500; margin: 0 0 0.2rem; }
.dlg-stages { display: flex; gap: 0.3rem; flex-wrap: wrap; margin: 0.9rem 0 1.4rem; }
.dlg-stages button {
  background: none;
  border: 1px solid var(--hair);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  font-size: 0.72rem;
}
.dlg-stages button:not(:disabled):hover { color: var(--accent); border-color: var(--accent-soft); }
.dlg-stages button.active { color: var(--accent); border-color: var(--accent); opacity: 1; }
.dlg-stages button.done { color: var(--good); opacity: 1; }
.dlg-now { font-family: var(--mono); font-size: 0.85rem; color: var(--ink-soft); text-align: center; min-height: 2.5rem; margin: 1rem 0; }
.dlg-bar { position: relative; margin: 0 0 1.2rem; padding-top: 0.5rem; }
.dlg-bar input[type=range] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 6px; margin: 0; cursor: pointer;
  background: var(--bg-card); border-radius: 3px; outline: none;
}
.dlg-bar input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--bg); box-shadow: 0 0 0 1px var(--accent-soft);
}
.dlg-bar input[type=range]::-moz-range-thumb {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--bg); box-shadow: 0 0 0 1px var(--accent-soft);
}
.dlg-bar input[type=range]:focus-visible { box-shadow: 0 0 0 2px var(--accent-soft); }
.dlg-ticks { position: absolute; left: 0; right: 0; top: 0; height: 0.5rem; pointer-events: none; }
.dlg-ticks i { position: absolute; top: 0; width: 1px; height: 100%; background: var(--muted); opacity: 0.6; }
.dlg-ticks i.you { background: var(--accent); }
.dlg-time { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 0.72rem; color: var(--muted); margin-top: 0.3rem; }
.say-controls button.active { border-color: var(--accent); color: var(--accent); }
.dlg-lines { display: flex; flex-direction: column; gap: 0.6rem; margin: 1rem 0 1.4rem; }
.dlg-line {
  display: grid;
  grid-template-columns: 5.5rem 1fr auto;
  gap: 0.8rem;
  align-items: start;
  padding: 0.7rem 0.9rem;
  background: var(--bg-card);
  border: 1px solid var(--hair);
  border-radius: 8px;
  cursor: pointer;
}
.dlg-line.you { border-left: 3px solid var(--accent); }
.dlg-line:hover { border-color: var(--accent-soft); }
.dlg-who { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); padding-top: 0.3rem; }
.dlg-line.you .dlg-who { color: var(--accent); }
.dlg-text .ja { font-size: 1.15rem; }
.dlg-text .romaji { font-size: 0.82rem; }
.dlg-text .en { font-size: 0.9rem; color: var(--ink-soft); }
.dlg-score { font-size: 1rem; font-weight: 700; }
.dlg-score.high { color: var(--good); }
.dlg-score.mid { color: var(--mid); }
.dlg-score.low { color: var(--bad); }

/* ---- course ---- */
.course-wrap { max-width: 720px; margin: 0 auto; }
.course-hero { text-align: center; margin-bottom: 1rem; }
.course-hero p { color: var(--ink-soft); }
.course-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px solid var(--hair);
  color: var(--ink);
  padding: 0.75rem 0.3rem;
  font-family: inherit;
  font-size: 1rem;
}
.course-row:hover { color: var(--accent); background: var(--bg-raised); }
.course-day { display: flex; align-items: stretch; border-bottom: 1px solid var(--hair); }
.course-day .course-row { border-bottom: none; }
.course-day-actions { display: flex; gap: 0.2rem; align-items: center; padding-left: 0.4rem; }
.course-day-actions button {
  background: none; border: 1px solid transparent; border-radius: 4px; color: var(--muted);
  font-size: 0.85rem; width: 1.8rem; height: 1.8rem; padding: 0; cursor: pointer;
}
.course-day-actions button:hover { color: var(--accent); border-color: var(--accent-soft); }
.course-row .note { margin: 0; text-align: right; font-family: var(--mono); font-size: 0.72rem; }
.course-row.passed .note { color: var(--good); }
.course-row.optional .course-row-title { color: var(--mid); }
.course-row.active .note { color: var(--accent); }
.course-links { display: flex; gap: 1.2rem; }
.course-link { display: block; color: var(--ink-soft); padding: 0.5rem 0.3rem; font-size: 0.92rem; }
.course-link:hover { color: var(--accent); }
.course-tip {
  max-width: 560px;
  border-left: 3px solid var(--accent);
  background: var(--bg-raised);
  padding: 0.7rem 1rem;
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.drill-skip-all { text-align: center; margin-top: 0.4rem; }
.drill-skip-all button { background: none; border: none; color: var(--muted); font-family: inherit; font-size: 0.82rem; cursor: pointer; }
.drill-skip-all button:hover { color: var(--accent); }
.review-head { display: flex; justify-content: space-between; align-items: center; margin: 0.5rem 0; }
.review-head button { background: none; border: 1px solid var(--hair); border-radius: 6px; color: var(--muted); padding: 0.3rem 0.7rem; font-family: inherit; font-size: 0.85rem; cursor: pointer; }
.review-head button:hover { color: var(--accent); border-color: var(--accent-soft); }
.course-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--hair);
}
.course-foot button {
  background: var(--bg-card);
  border: 1px solid var(--hair);
  color: var(--ink-soft);
  border-radius: 6px;
  padding: 0.6rem 1.2rem;
  font-size: 0.82rem;
}
.course-foot button.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }

/* ---- card detail (literal / parts / use) ---- */
.detail {
  text-align: left;
  font-size: 0.88rem;
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 0.6rem;
  width: 100%;
  max-width: 520px;
}
.detail-row { display: grid; grid-template-columns: 4.6rem 1fr; gap: 0.6rem; }
.detail-k {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  padding-top: 0.2rem;
}
.detail-parts {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  border-left: 2px solid var(--hair);
  padding-left: 0.7rem;
  margin: 0.15rem 0;
}
.detail-part { display: grid; grid-template-columns: 7.5rem 5rem 1fr; gap: 0.6rem; align-items: baseline; }
.detail-part .romaji { color: var(--ink); font-style: normal; font-family: var(--mono); font-size: 0.8rem; }
.detail-part .ja { font-size: 0.95rem; color: var(--muted); }
.detail-gloss { font-size: 0.84rem; }
.browse-row.expandable .browse-en { cursor: pointer; }
.browse-row.expandable .browse-en .en::after { content: ' ▸'; color: var(--muted); font-size: 0.75rem; }
.browse-row.expandable.open .browse-en .en::after { content: ' ▾'; }
.browse-row .detail { font-size: 0.82rem; }
.flash-card .detail, .say-card .detail { margin-top: 0.9rem; }
.flash-card .detail-row, .say-card .detail-row { text-align: left; }

/* ---- status bar ---- */
.statusbar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 1.4rem;
  border-top: 1px solid var(--hair);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  background: var(--bg-raised);
}

@media (max-width: 640px) {
  .detail-part { grid-template-columns: 1fr; gap: 0; margin-bottom: 0.3rem; }
  .dlg-line { grid-template-columns: 1fr auto; }
  .dlg-who { grid-column: 1 / -1; }
  .browse-row { grid-template-columns: 2.2rem 1fr 2.2rem; }
  .browse-row .browse-en { grid-column: 2; }
}

/* members-only content: sign-in link in the topbar */
.auth-link { align-self: center; font-family: var(--mono); font-size: 0.72rem; color: var(--muted, #888); text-decoration: none; white-space: nowrap; }
.auth-link:hover { color: var(--ink); text-decoration: underline; }