:root {
  --bg: #f5f0e6;
  --surface: #fffdf8;
  --surface-2: #efe8da;
  --ink: #1f1c18;
  --muted: #6d665b;
  --line: #e2d9c8;
  --accent: #2b4c7e;
  --accent-ink: #ffffff;
  --accent-soft: #e3e9f3;
  --shu: #c8402e;
  --good: #2f7a52;
  --good-soft: #e1f0e6;
  --bad: #c0392b;
  --bad-soft: #f8e1dd;
  --m0: #ece5d7; --m1: #f3d9c8; --m2: #f0e2b6; --m3: #dbe8bf; --m4: #bfdcc6; --m5: #8fc4a2;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(40, 30, 10, .06), 0 6px 24px rgba(40, 30, 10, .06);
  --font-ui: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-kana: 'Klee One', 'Hiragino Mincho ProN', 'Yu Mincho', serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151418; --surface: #1f1e24; --surface-2: #29272f; --ink: #ece6db; --muted: #a39c90;
    --line: #34313b; --accent: #8db0ea; --accent-ink: #10131a; --accent-soft: #263248;
    --shu: #ef6f5c; --good: #7cc89c; --good-soft: #1f3a2b; --bad: #ff8a78; --bad-soft: #43231f;
    --m0: #29272f; --m1: #4a2f2a; --m2: #4a4126; --m3: #3a4a2a; --m4: #2b4a37; --m5: #2f6b47;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 24px rgba(0,0,0,.25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #151418; --surface: #1f1e24; --surface-2: #29272f; --ink: #ece6db; --muted: #a39c90;
  --line: #34313b; --accent: #8db0ea; --accent-ink: #10131a; --accent-soft: #263248;
  --shu: #ef6f5c; --good: #7cc89c; --good-soft: #1f3a2b; --bad: #ff8a78; --bad-soft: #43231f;
  --m0: #29272f; --m1: #4a2f2a; --m2: #4a4126; --m3: #3a4a2a; --m4: #2b4a37; --m5: #2f6b47;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 24px rgba(0,0,0,.25);
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}
a { color: var(--accent); }
button, input, select { font: inherit; color: inherit; }

.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }

/* Шапка */
.top {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.top .wrap { display: flex; align-items: center; gap: 20px; height: 60px; }
.logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--ink); font-weight: 800; letter-spacing: -.01em;
}
.hanko {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--shu); color: #fff;
  display: grid; place-items: center;
  font-family: var(--font-kana); font-weight: 600; font-size: 19px;
}
.nav { display: flex; gap: 4px; margin-left: auto; overflow-x: auto; }
.nav a {
  text-decoration: none; color: var(--muted); font-weight: 600; font-size: 14px;
  padding: 7px 12px; border-radius: 999px; white-space: nowrap;
}
.nav a:hover { color: var(--ink); background: var(--surface-2); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--surface); box-shadow: var(--shadow); }
@media (max-width: 620px) {
  .logo span:last-child { display: none; }
  .top .wrap { gap: 8px; }
  .nav a { padding: 7px 9px; font-size: 13px; }
  .nav a[href="./"] { display: none; } /* на главную ведёт логотип */
}

main { padding: 28px 0 64px; }
h1 { font-size: clamp(26px, 5vw, 38px); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 0 0 12px; letter-spacing: -.01em; }
.lead { color: var(--muted); margin: 0 0 24px; max-width: 60ch; }
.muted { color: var(--muted); }
.jp { font-family: var(--font-kana); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

/* Кнопки и переключатели */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  padding: 10px 16px; border-radius: 10px; font-weight: 700; cursor: pointer;
  text-decoration: none; transition: transform .05s, background .15s, border-color .15s;
}
.btn:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 10px; font-size: 13px; border-radius: 8px; }
.btn:disabled { opacity: .45; cursor: default; }

.seg { display: inline-flex; background: var(--surface-2); border-radius: 10px; padding: 3px; gap: 2px; flex-wrap: wrap; }
.seg button {
  border: 0; background: transparent; padding: 7px 12px; border-radius: 8px;
  font-weight: 700; font-size: 14px; color: var(--muted); cursor: pointer;
}
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  border: 1px solid var(--line); background: var(--surface); border-radius: 999px;
  padding: 5px 12px; cursor: pointer; font-size: 14px; display: inline-flex; gap: 6px; align-items: baseline;
}
.chip .jp { font-size: 17px; }
.chip small { color: var(--muted); font-size: 12px; }
.chip[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); }

.field-label { font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 8px; }
.settings { display: grid; gap: 18px; }
.settings-row { display: flex; flex-wrap: wrap; gap: 18px 28px; }

/* Главная */
.hero { display: grid; grid-template-columns: 1.3fr 1fr; gap: 24px; align-items: center; margin-bottom: 32px; }
.hero-kana {
  font-family: var(--font-kana); font-size: clamp(64px, 14vw, 120px); line-height: 1;
  color: var(--ink); text-align: center; letter-spacing: .05em;
}
.hero-kana span { color: var(--shu); }
@media (max-width: 720px) { .hero { grid-template-columns: 1fr; } .hero-kana { order: -1; } }

.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.tool {
  display: flex; flex-direction: column; gap: 6px; text-decoration: none; color: var(--ink);
  transition: transform .15s, border-color .15s;
}
.tool:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.tool .glyph { font-family: var(--font-kana); font-size: 40px; line-height: 1.1; color: var(--accent); }
.tool h3 { margin: 4px 0 0; font-size: 18px; }
.tool p { margin: 0; color: var(--muted); font-size: 14px; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 0 0 28px; }
.stat { padding: 14px 16px; }
.stat b { display: block; font-size: 26px; letter-spacing: -.02em; }
.stat span { color: var(--muted); font-size: 13px; }

/* Тренажёр */
.trainer { display: grid; grid-template-columns: 1fr 300px; gap: 20px; align-items: start; }
@media (max-width: 860px) { .trainer { grid-template-columns: 1fr; } }

.quiz { text-align: center; padding: 28px 20px; position: relative; }
.quiz-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; font-weight: 600; }
.prompt {
  font-family: var(--font-kana); font-size: clamp(96px, 26vw, 168px); line-height: 1.15;
  margin: 12px 0 4px; min-height: 1.15em; user-select: none;
}
.prompt.reading { font-family: var(--font-ui); font-weight: 800; font-size: clamp(56px, 16vw, 96px); letter-spacing: -.02em; }
.prompt.number { font-family: var(--font-ui); font-weight: 800; font-size: clamp(64px, 18vw, 120px); letter-spacing: -.03em; }
.sub-prompt { color: var(--muted); font-family: var(--font-kana); font-size: 22px; min-height: 1.5em; }

.options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 18px; }
.option {
  border: 1.5px solid var(--line); background: var(--surface); border-radius: 12px;
  padding: 14px 10px; font-size: 22px; font-weight: 700; cursor: pointer; position: relative;
  transition: border-color .12s, background .12s;
}
.option.jp-opt { font-family: var(--font-kana); font-weight: 600; font-size: 34px; padding: 8px 10px; }
.option.long { font-size: 22px; }
.option:hover:not(:disabled) { border-color: var(--accent); }
.option kbd {
  position: absolute; top: 6px; left: 8px; font-family: var(--font-ui); font-size: 11px;
  color: var(--muted); font-weight: 700;
}
.option.correct { border-color: var(--good); background: var(--good-soft); }
.option.wrong { border-color: var(--bad); background: var(--bad-soft); }
.option:disabled { cursor: default; }

.answer-form { display: flex; gap: 8px; margin-top: 18px; }
.answer-form input {
  flex: 1; min-width: 0; font-size: 22px; padding: 12px 14px; border-radius: 12px;
  border: 1.5px solid var(--line); background: var(--surface); text-align: center; font-weight: 700;
}
.answer-form input:focus { outline: none; border-color: var(--accent); }
.answer-form input.correct { border-color: var(--good); background: var(--good-soft); }
.answer-form input.wrong { border-color: var(--bad); background: var(--bad-soft); }

.feedback { min-height: 92px; margin-top: 16px; display: grid; place-items: center; }
.feedback-box { border-radius: 12px; padding: 12px 16px; width: 100%; text-align: left; display: flex; gap: 14px; align-items: center; }
.feedback-box.good { background: var(--good-soft); }
.feedback-box.bad { background: var(--bad-soft); }
.feedback-box .big { font-family: var(--font-kana); font-size: 44px; line-height: 1; }
.feedback-box .text { flex: 1; font-size: 14px; }
.feedback-box .text b { font-size: 16px; }
.hint-line { color: var(--muted); font-size: 13px; margin-top: 10px; }

.icon-btn {
  border: 1px solid var(--line); background: var(--surface); border-radius: 999px; width: 40px; height: 40px;
  display: inline-grid; place-items: center; cursor: pointer; color: var(--muted);
}
.icon-btn:hover { color: var(--ink); }
.icon-btn svg { width: 18px; height: 18px; }
.speak { position: absolute; top: 56px; right: 16px; }

.side { display: grid; gap: 16px; }
.mini-stats { display: grid; grid-template-columns: repeat(3, 1fr); text-align: center; gap: 8px; }
.mini-stats b { display: block; font-size: 22px; }
.mini-stats span { font-size: 12px; color: var(--muted); }
.hard-list { display: flex; flex-wrap: wrap; gap: 6px; }
.hard-list span {
  font-family: var(--font-kana); font-size: 22px; background: var(--bad-soft); border-radius: 8px;
  padding: 2px 8px; min-width: 38px; text-align: center;
}

details.card summary { cursor: pointer; font-weight: 800; list-style: none; display: flex; justify-content: space-between; align-items: center; }
details.card summary::-webkit-details-marker { display: none; }
details.card summary::after { content: '▾'; color: var(--muted); transition: transform .2s; }
details.card[open] summary::after { transform: rotate(180deg); }
details.card[open] summary { margin-bottom: 16px; }

/* Таблица каны */
.kana-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.kana-grid.wide { grid-template-columns: repeat(3, 1fr); }
.kana-cell {
  border: 1px solid var(--line); border-radius: 12px; padding: 8px 4px 6px; text-align: center; cursor: pointer;
  background: var(--m0); transition: transform .1s; position: relative;
}
.kana-cell:hover { transform: translateY(-1px); }
.kana-cell.empty { visibility: hidden; }
.kana-cell .k { font-family: var(--font-kana); font-size: clamp(28px, 7vw, 40px); line-height: 1.2; }
.kana-cell .r { font-size: 13px; color: var(--muted); font-weight: 700; }
.kana-cell[data-m="1"] { background: var(--m1); }
.kana-cell[data-m="2"] { background: var(--m2); }
.kana-cell[data-m="3"] { background: var(--m3); }
.kana-cell[data-m="4"] { background: var(--m4); }
.kana-cell[data-m="5"] { background: var(--m5); }
.kana-cell.selected { outline: 2px solid var(--accent); outline-offset: 1px; }

.table-layout { display: grid; grid-template-columns: 1fr 320px; gap: 20px; align-items: start; }
@media (max-width: 860px) { .table-layout { grid-template-columns: 1fr; } }
.detail { position: sticky; top: 76px; }
.detail .big { font-family: var(--font-kana); font-size: 120px; line-height: 1.1; text-align: center; }
.detail .actions { display: flex; gap: 8px; margin-top: 14px; }
.detail .pair { display: flex; justify-content: center; gap: 18px; color: var(--muted); font-weight: 700; }
.detail .pair .jp { font-size: 22px; color: var(--ink); }
.detail .mn { margin: 16px 0 0; padding: 12px 14px; background: var(--surface-2); border-radius: 10px; font-size: 15px; }
@media (max-width: 860px) {
  /* На телефоне карточка знака прилипает к низу экрана. */
  .detail {
    top: auto; bottom: 10px; z-index: 5; padding: 12px 14px;
    display: grid; grid-template-columns: auto 1fr; column-gap: 14px; align-items: center;
  }
  .detail .big { font-size: 64px; grid-row: span 3; }
  .detail .pair { justify-content: flex-start; gap: 10px; }
  .detail .mn { margin: 6px 0 0; padding: 0; background: none; font-size: 14px; }
  .detail #d-stat, .detail .actions { display: none; }
}
.legend { display: flex; align-items: center; gap: 4px; font-size: 12px; color: var(--muted); flex-wrap: wrap; }
.legend i { width: 18px; height: 12px; border-radius: 3px; display: inline-block; border: 1px solid var(--line); }
.section-title { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin: 28px 0 12px; }
.section-title:first-child { margin-top: 0; }
.section-title h2 { margin: 0; }

.ref-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.ref-table td { padding: 7px 4px; border-bottom: 1px solid var(--line); }
.ref-table td:first-child { font-weight: 800; width: 64px; }
.ref-table .jp { font-size: 19px; }

.tip { border-left: 3px solid var(--shu); padding: 4px 0 4px 14px; margin: 0; color: var(--muted); font-size: 14px; }

footer { color: var(--muted); font-size: 13px; padding: 24px 0 40px; border-top: 1px solid var(--line); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }
@keyframes pop { from { transform: scale(.92); opacity: .4; } to { transform: scale(1); opacity: 1; } }
.pop { animation: pop .18s ease-out; }

/* Уроки */
.next-card { display: flex; gap: 24px; align-items: center; margin-bottom: 8px; }
.next-glyphs { font-size: clamp(36px, 8vw, 56px); line-height: 1.1; color: var(--accent); white-space: nowrap; }
@media (max-width: 620px) { .next-card { flex-direction: column; align-items: flex-start; gap: 8px; } }

.rows-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.row-card { padding: 14px 16px; display: grid; gap: 4px; }
.row-card.done { background: color-mix(in srgb, var(--good-soft) 55%, var(--surface)); }
.row-card.next { border-color: var(--accent); }
.row-glyphs { font-size: 26px; line-height: 1.3; }
.row-label { color: var(--muted); font-size: 13px; font-weight: 600; }
.row-status { font-size: 12px; font-weight: 800; color: var(--good); min-height: 18px; }
.row-card.next .row-status { color: var(--accent); }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }

.steps { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.steps ol { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.steps li { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: var(--muted); padding: 5px 10px 5px 5px; border-radius: 999px; }
.steps li span { width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; background: var(--surface-2); font-size: 11px; }
.steps li.active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }
.steps li.active span { background: var(--accent); color: var(--accent-ink); }
.steps li.past span { background: var(--good); color: var(--accent-ink); }

.lesson { display: grid; grid-template-columns: minmax(0, 340px) 1fr; gap: 28px; align-items: start; }
@media (max-width: 760px) { .lesson { grid-template-columns: 1fr; gap: 16px; } }
.lesson-viewer { display: grid; gap: 10px; justify-items: center; }
.stroke-box {
  position: relative; width: 100%; max-width: 340px; aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  background: var(--surface-2); border-radius: 14px; border: 1px solid var(--line);
}
.stroke-svg { width: 100%; height: 100%; }
.stroke-svg.small { width: 60%; height: 60%; align-self: flex-end; }
.stroke-svg path { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.stroke-svg .grid-line { stroke: var(--line); stroke-width: .6; stroke-dasharray: 2 2; }
.stroke-svg .ghost path { stroke: color-mix(in srgb, var(--ink) 14%, transparent); stroke-width: 3.2; }
.stroke-svg .ink path { stroke: var(--ink); stroke-width: 3.6; }
.stroke-svg .nums text { font: 700 7.5px var(--font-ui); fill: var(--shu); }
.stroke-box.tracing .ink { opacity: .18; }
.stroke-box.tracing .nums { opacity: .6; }
.stroke-fallback { font-size: 150px; line-height: 1; }
.trace { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; touch-action: none; border-radius: 14px; }
.stroke-box.tracing .trace { pointer-events: auto; cursor: crosshair; }
.viewer-actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }

.lesson-reading { font-size: clamp(48px, 10vw, 72px); font-weight: 800; letter-spacing: -.02em; line-height: 1.05; margin-bottom: 8px; }
.lesson-reading span { font-size: .4em; color: var(--muted); margin-left: 12px; font-weight: 700; letter-spacing: 0; }
.lesson .mn { margin: 0; padding: 12px 14px; background: var(--surface-2); border-radius: 10px; font-size: 15px; }
.lesson-nav { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 22px; }
.dots { display: flex; gap: 6px; }
.dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.dots i.past { background: var(--good); }
.dots i.on { background: var(--accent); width: 22px; border-radius: 4px; }

.practice-progress { margin-bottom: 14px; }
.kana-pill { font-size: 22px; padding: 2px 12px; border-radius: 10px; background: var(--surface); border: 1px solid var(--line); }
.kana-pill.half { background: var(--m2); }
.kana-pill.done { background: var(--m5); border-color: var(--good); }
.bar { height: 8px; border-radius: 4px; background: var(--surface-2); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); transition: width .3s; }

.done-card { text-align: center; padding: 36px 20px; }
.done-glyphs { font-size: clamp(44px, 10vw, 72px); color: var(--accent); margin-bottom: 8px; }

/* Компактный режим тренажёров на телефоне */
.meta-link {
  border: 0; background: none; padding: 0; color: var(--muted); font: inherit; font-weight: 700; cursor: pointer;
  text-decoration: underline dotted; text-underline-offset: 3px;
}
.meta-link:hover { color: var(--ink); }
.sub-prompt:empty { min-height: 0; }
@media (hover: none) {
  .option kbd, .hint-line, .kbd-help { display: none; }
}
@media (max-width: 620px) {
  main { padding: 16px 0 40px; }
  .compact h1 { font-size: 24px; margin-bottom: 12px; }
  .compact .lead { display: none; }
  .quiz { padding: 14px 14px 16px; }
  .prompt { font-size: 96px; margin: 2px 0 0; }
  .prompt.reading { font-size: 56px; }
  .prompt.number { font-size: 72px; }
  .speak { top: 40px; right: 10px; width: 36px; height: 36px; }
  .options { gap: 8px; margin-top: 12px; }
  .option { padding: 12px 8px; font-size: 21px; }
  .option.jp-opt { font-size: 30px; padding: 6px 8px; }
  .feedback { min-height: 0; margin-top: 12px; }
  .feedback-box { flex-wrap: wrap; gap: 10px 12px; padding: 12px; }
  .feedback-box .big { font-size: 36px; }
  .feedback-box .text { min-width: 0; flex: 1 1 200px; }
  .feedback-box .btn { width: 100%; }
  .answer-form input { font-size: 20px; padding: 10px 12px; }
  .side { gap: 12px; }
}

.conf-list { display: grid; gap: 6px; }
.conf-pair { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.conf-pair .jp { font-size: 22px; background: var(--surface-2); border-radius: 8px; padding: 0 8px; min-width: 36px; text-align: center; }
.conf-pair i { color: var(--muted); font-style: normal; }
.conf-pair small { color: var(--muted); margin-left: auto; font-weight: 700; }
.how ul { margin: 0; padding-left: 18px; font-size: 14px; color: var(--muted); display: grid; gap: 8px; }
.how ul b { color: var(--ink); }
#q-progress[data-reason="relearn"] { color: var(--bad); }
#q-progress[data-reason="due"] { color: var(--accent); }

/* Слова */
.lessons { display: flex; gap: 8px; overflow-x: auto; padding: 2px 2px 10px; margin-bottom: 10px; scrollbar-width: thin; }
.lesson-chip {
  flex: 0 0 auto; display: grid; gap: 2px; text-align: left; min-width: 130px;
  border: 1px solid var(--line); background: var(--surface); border-radius: 12px; padding: 10px 12px; cursor: pointer;
}
.lesson-chip b { font-size: 14px; }
.lesson-chip span { font-size: 12px; color: var(--muted); }
.lesson-chip[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); }
.lesson-bar { display: block; height: 4px; border-radius: 2px; background: var(--surface-2); margin-top: 6px; overflow: hidden; }
.lesson-bar i { display: block; height: 100%; width: 0; background: var(--good); transition: width .3s; }

.prompt.word { line-height: 1.25; margin: 18px 0 6px; word-break: keep-all; }
.prompt.word-ru { font-family: var(--font-ui); font-weight: 800; font-size: clamp(24px, 6vw, 36px); line-height: 1.25; margin: 26px 0 8px; min-height: 0; }
.sub-prompt { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.sub-prompt .translit { font-family: var(--font-ui); font-size: 16px; font-weight: 600; align-self: center; }
.options.one-col { grid-template-columns: 1fr; }
.option.ru-opt { font-size: 17px; font-weight: 600; text-align: left; padding: 13px 14px 13px 32px; }
.option.ru-opt kbd { top: 50%; transform: translateY(-50%); }
.option .opt-hint { display: block; font-family: var(--font-ui); font-size: 12px; color: var(--muted); font-weight: 600; }
.option.good-opt { border-color: color-mix(in srgb, var(--good) 50%, var(--line)); }
.btn.reveal { margin-top: 20px; width: 100%; max-width: 360px; padding: 14px; font-size: 17px; }
.card-back { margin-top: 14px; padding: 14px; border-radius: 12px; background: var(--surface-2); }
.card-back .ru { font-size: 22px; font-weight: 800; margin-bottom: 4px; }

.word-table { width: 100%; border-collapse: collapse; font-size: 15px; margin-bottom: 8px; }
.word-table tr { cursor: pointer; }
.word-table tr:hover td { background: var(--surface); }
.word-table td { padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
.word-table .kana { font-size: 19px; white-space: nowrap; }
.word-table .kana small { display: block; font-size: 13px; color: var(--muted); }
.word-table .tr { color: var(--muted); font-size: 13px; white-space: nowrap; }
.word-table .lvl { width: 32px; text-align: center; }
.word-table .lvl span { display: inline-block; min-width: 22px; border-radius: 6px; font-size: 12px; font-weight: 800; background: var(--m1); }
.word-table .lvl span[data-m="2"] { background: var(--m2); }
.word-table .lvl span[data-m="3"] { background: var(--m3); }
.word-table .lvl span[data-m="4"] { background: var(--m4); }
.word-table .lvl span[data-m="5"] { background: var(--m5); }
@media (max-width: 620px) {
  .word-table .tr { display: none; }
  .word-table .kana { white-space: normal; }
}

.sub-prompt { font-family: var(--font-ui); font-size: 16px; }
.sub-prompt .jp { font-family: var(--font-kana); font-size: 22px; }
.side .seg { display: flex; width: 100%; }
.side .seg button { flex: 1 1 auto; }
@media (max-width: 420px) {
  .nav { gap: 0; }
  .nav a { padding: 6px 7px; font-size: 13px; }
}

/* Слова целиком в тренажёре каны */
.prompt.word-read { font-family: var(--font-kana); font-size: clamp(56px, 16vw, 104px); line-height: 1.2; margin: 18px 0 4px; letter-spacing: .04em; }
.syllables { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.syl { display: grid; justify-items: center; min-width: 40px; padding: 4px 8px; border-radius: 8px; background: color-mix(in srgb, var(--surface) 70%, transparent); }
.syl b { font-size: 22px; font-weight: 600; line-height: 1.2; }
.syl small { font-size: 12px; font-weight: 700; color: var(--muted); }
.syl.bad { outline: 2px solid var(--bad); }

/* Колонки тренажёра не должны распираться содержимым */
.trainer > *, .lesson > * { min-width: 0; }
.quiz-meta { gap: 4px 12px; flex-wrap: wrap; }
.quiz-meta > * { min-width: 0; }
#q-progress { text-align: right; margin-left: auto; }
.prompt { overflow-wrap: anywhere; }

.rule-card { text-align: left; margin-top: 10px; padding: 14px; border-radius: 12px; background: var(--surface-2); font-size: 15px; }
.rule-card p { margin: 0 0 10px; }
.rule-card .compare { font-size: 30px; text-align: center; letter-spacing: .05em; }
.rule-card .compare b { color: var(--shu); font-weight: 600; }
.rule-examples { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }
.rule-examples .syl { border: 1px solid var(--line); cursor: pointer; font: inherit; color: inherit; }

.small-rules { display: grid; gap: 18px; }
.small-rules .rule { display: grid; grid-template-columns: 64px 1fr; gap: 14px; align-items: start; font-size: 15px; }
.small-rules .big-k { font-size: 44px; line-height: 1; text-align: center; }
.small-rules .big-k small { display: block; font-size: 18px; color: var(--muted); margin-top: 4px; }
.small-rules .ex { margin-top: 8px; font-size: 20px; }
.small-rules .ex b { color: var(--shu); font-weight: 600; }
.small-rules .ex span { font-family: var(--font-ui); font-size: 13px; color: var(--muted); margin-right: 6px; }
.small-rules .ex { display: flex; flex-wrap: wrap; gap: 6px; font-size: 15px; }
.small-rules .ex .e { display: inline-grid; padding: 4px 10px; border-radius: 8px; background: var(--surface-2); }
.small-rules .ex .jp { font-size: 22px; white-space: nowrap; }
.small-rules .ex small { font-size: 12px; color: var(--muted); }
.small-rules .big-k { font-size: 36px; white-space: nowrap; }
@media (max-width: 620px) {
  .small-rules .rule { grid-template-columns: 1fr; gap: 6px; }
  .small-rules .big-k { text-align: left; display: flex; align-items: baseline; gap: 10px; }
  .small-rules .big-k small { margin: 0; }
}