/* Игра-шедевр · стиль курса на дизайн-системе AbsoSchool.
   Макет: шапка с полосой группы → одна колонка урока (до 780px) внутри обёртки 1200px.
   Урок = последовательность блоков: Сыграй → Главное → Примеры → Ошибки → Проверь себя → Создай → Глубже → Для ведущего.
   Цвета: Ink / Paper / «Лазурь» (цвет школы) / Volt — только полоса группы / Flame — ошибки и предупреждения. */

:root {
  --ink: #0b0c0f;
  --ink-2: #15171c;
  --accent: #66baff;
  --accent-600: #4aa9f7;
  --accent-rgb: 102, 186, 255;
  --deep: #0b5cad;
  --volt: #d4ff3a;
  --flame: #ff4f1f;
  --light: #f5f4ee;
  --paper: #f5f4ee;
  --card: #ffffff;
  --fg: #0b0c0f;
  --link: var(--deep);
  --muted: rgba(11, 12, 15, 0.68);
  --line: rgba(11, 12, 15, 0.12);
  --line-strong: rgba(11, 12, 15, 0.28);
  --wm-pin: var(--ink);
  --wm-accent: var(--accent);
  --tint: rgba(102, 186, 255, 0.18);
  --flame-tint: rgba(255, 79, 31, 0.08);
  --flame-text: #c2380f;
  --strong-bg: #0b0c0f;
  --strong-fg: #f5f4ee;
  --p1: #0b5cad;
  --p2: #b3266e;
  --good: #1f7a45;
  --good-tint: rgba(46, 158, 91, 0.13);
  --bad: #c2380f;
  --bad-tint: rgba(255, 79, 31, 0.1);
  --display: 'Unbounded', system-ui, sans-serif;
  --sans: 'Onest', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --r: 24px;
  --r-sm: 14px;
  --wrap: 1200px;
  --col: 780px;
  --gut: 16px;
}
@media (min-width: 720px) { :root { --gut: 24px; } }
@media (min-width: 1100px) { :root { --gut: 32px; } }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e0f12;
    --card: #17191e;
    --fg: #f2f1ea;
    --link: var(--accent);
    --muted: rgba(242, 241, 234, 0.7);
    --line: rgba(242, 241, 234, 0.13);
    --line-strong: rgba(242, 241, 234, 0.32);
    --wm-pin: var(--accent);
    --wm-accent: var(--ink);
    --tint: rgba(102, 186, 255, 0.14);
    --flame-tint: rgba(255, 79, 31, 0.12);
    --flame-text: #ff8a66;
    --strong-bg: #16263a;
    --strong-fg: #f2f1ea;
    --p1: #66baff;
    --p2: #ff8ac8;
    --good: #63d394;
    --good-tint: rgba(99, 211, 148, 0.14);
    --bad: #ff8a66;
    --bad-tint: rgba(255, 79, 31, 0.16);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0e0f12;
  --card: #17191e;
  --fg: #f2f1ea;
  --link: var(--accent);
  --muted: rgba(242, 241, 234, 0.7);
  --line: rgba(242, 241, 234, 0.13);
  --line-strong: rgba(242, 241, 234, 0.32);
  --wm-pin: var(--accent);
  --wm-accent: var(--ink);
  --tint: rgba(102, 186, 255, 0.14);
  --flame-tint: rgba(255, 79, 31, 0.12);
  --flame-text: #ff8a66;
  --strong-bg: #16263a;
  --strong-fg: #f2f1ea;
  --p1: #66baff;
  --p2: #ff8ac8;
  --good: #63d394;
  --good-tint: rgba(99, 211, 148, 0.14);
  --bad: #ff8a66;
  --bad-tint: rgba(255, 79, 31, 0.16);
  color-scheme: dark;
}

/* ---------- База ---------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
body { margin: 0; background: var(--paper); color: var(--fg); font: 400 1.0625rem/1.65 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
button { font: inherit; color: inherit; }
b, strong { font-weight: 700; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--light); padding: 8px 14px; border-radius: 999px; z-index: 50; }
.skip:focus { left: 12px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: max(var(--gut), env(safe-area-inset-left, 0px)); padding-right: max(var(--gut), env(safe-area-inset-right, 0px)); }
.col { max-width: var(--col); margin: 0 auto; }
.muted { color: var(--muted); }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font: 700 0.72rem/1.25 var(--display); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.lead { font-size: clamp(1.15rem, 2.2vw, 1.35rem); line-height: 1.5; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
/* Сетки с одной колонкой не должны раздуваться от картинок и таблиц */
.col, .block, .prose, .demo, .task, .q, .section, .part, .hero-text, .ladder, .page-head .col, .page-body .col, .lesson-hero .col, .lesson-body .col, .lesson-foot .col, details.more > .inner { grid-template-columns: minmax(0, 1fr); }

/* ---------- Полоса группы и шапка ---------- */
.band { background: var(--ink); color: rgba(245, 244, 238, 0.78); font-size: 0.8rem; }
.band .wrap { display: flex; flex-wrap: wrap; gap: 4px 16px; align-items: center; justify-content: space-between; min-height: 36px; padding-block: 6px; }
.band a { color: var(--light); }
.band .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--volt); display: inline-block; margin-right: 8px; vertical-align: 1px; }
@media (max-width: 600px) {
  .band-long { display: none; }
  .site-nav a { padding: 6px 10px; font-size: 0.9rem; }
}
.site-head { border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; flex-wrap: wrap; gap: 10px 24px; align-items: center; justify-content: space-between; padding-block: 14px; }
/* Знак «abs[пин]games»: как «abs[пин]school» у школы, внутри пина — кубик. */
.wordmark { display: inline-flex; align-items: center; gap: 1px; color: var(--fg); text-decoration: none; font: 900 1.45rem/1 var(--display); letter-spacing: -0.045em; }
.wordmark:hover { text-decoration: none; }
.wm-word { display: inline-block; transform: skewX(-10deg); }
.wm-pin { height: 1.4em; width: auto; flex: none; margin: 0 1px; transform: translateY(0.14em); }
.site-nav { display: flex; flex-wrap: wrap; gap: 4px; }
.site-nav a { color: var(--fg); text-decoration: none; font-weight: 600; font-size: 0.95rem; padding: 8px 12px; border-radius: 999px; }
.site-nav a:hover { background: var(--tint); }
.site-nav a[aria-current] { background: var(--strong-bg); color: var(--strong-fg); }

/* ---------- Кнопки ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 52px; padding: 0 24px; border-radius: 999px; border: 2px solid transparent; font: 800 0.78rem/1.15 var(--display); letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none; cursor: pointer; transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease; }
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: 0.45; cursor: default; transform: none; }
.btn-accent { background: var(--accent); color: var(--ink); }
.btn-accent:hover { background: var(--accent-600); }
.btn-ink { background: var(--ink); color: var(--light); }
.btn-outline { border-color: var(--fg); color: var(--fg); background: transparent; }
.btn-sm { min-height: 42px; padding: 0 16px; font-size: 0.7rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

/* ---------- Главная ---------- */
.hero { padding-block: 40px 56px; }
.hero-grid { display: grid; gap: 32px; align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 48px; } }
.hero-text { display: grid; gap: 20px; }
.h1 { font: 900 clamp(2.4rem, 7vw, 4.6rem)/1.02 var(--display); letter-spacing: -0.04em; }
.h1-long { font-size: clamp(2rem, 5.4vw, 3.7rem); line-height: 1.05; overflow-wrap: anywhere; hyphens: auto; }

/* ---------- Главная AbsoGames: двери, законы, «готовится» ---------- */
.doors { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.door { display: grid; gap: 10px; align-content: start; padding: 22px; border-radius: var(--r); background: var(--card); border: 1px solid var(--line); color: var(--fg); text-decoration: none; transition: transform 0.15s ease, border-color 0.15s ease; }
.door:hover { transform: translateY(-2px); border-color: var(--line-strong); text-decoration: none; }
.door .num { width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: var(--ink); display: grid; place-items: center; font: 800 0.95rem/1 var(--display); }
.door h3 { font: 800 1.1rem/1.25 var(--display); letter-spacing: -0.01em; }
.door p { color: var(--muted); }
.door .go { font-weight: 700; color: var(--link); }
.laws { list-style: none; padding: 0; display: grid; gap: 10px; }
@media (min-width: 760px) { .laws { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.laws a { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 12px; align-items: start; padding: 14px 16px; border-radius: var(--r-sm); background: var(--card); border: 1px solid var(--line); color: var(--fg); text-decoration: none; transition: transform 0.15s ease, border-color 0.15s ease; }
.laws a:hover { transform: translateY(-1px); border-color: var(--line-strong); text-decoration: none; }
.laws .n { width: 40px; height: 40px; border-radius: 12px; background: var(--strong-bg); color: var(--accent); display: grid; place-items: center; font: 900 0.95rem/1 var(--display); }
.laws .t { display: grid; gap: 2px; }
.laws .t b { font: 800 1rem/1.25 var(--display); letter-spacing: -0.01em; }
.laws .t span { color: var(--muted); font-size: 0.93rem; }
.soon { display: grid; gap: 10px; align-content: start; padding: 22px; border-radius: var(--r); border: 2px dashed var(--line-strong); }
.soon h3 { font: 800 1.15rem/1.25 var(--display); letter-spacing: -0.01em; }
.soon .pill { justify-self: start; }
.h1 .slant { display: inline-block; transform: skewX(-10deg); }
.hero-facts { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 18px; color: var(--muted); font-size: 0.95rem; }
.hero-facts li::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-right: 8px; vertical-align: 2px; }
.art { border-radius: var(--r); overflow: hidden; background: #f5f4ee; aspect-ratio: 3 / 2; }
.art img { width: 100%; height: 100%; object-fit: cover; }
.thesis { background: var(--strong-bg); color: var(--strong-fg); }
.thesis .wrap { padding-block: 56px; display: grid; gap: 14px; }
.thesis p.big { font: 900 clamp(1.6rem, 4.4vw, 3rem)/1.12 var(--display); letter-spacing: -0.03em; max-width: 22ch; }
.thesis p.small { color: rgba(245, 244, 238, 0.76); max-width: 60ch; }
.thesis .eyebrow { color: rgba(245, 244, 238, 0.7); }
.section { padding-block: 56px; display: grid; gap: 28px; }
.section-head { display: grid; gap: 10px; max-width: 760px; }
.h2 { font: 800 clamp(1.5rem, 3.4vw, 2.3rem)/1.12 var(--display); letter-spacing: -0.03em; }
.steps3 { list-style: none; padding: 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); counter-reset: s; }
.steps3 li { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; display: grid; gap: 8px; align-content: start; }
.steps3 li .num { width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: var(--ink); display: grid; place-items: center; font: 800 0.95rem/1 var(--display); }
.steps3 li h3 { font: 800 1.05rem/1.25 var(--display); letter-spacing: -0.01em; }
.part { display: grid; gap: 14px; }
.part + .part { margin-top: 18px; }
.part-title { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.part-title h3 { font: 800 1.2rem/1.2 var(--display); letter-spacing: -0.02em; }
.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.card { position: relative; display: grid; grid-template-rows: auto 1fr; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; color: var(--fg); text-decoration: none; transition: transform 0.15s ease, border-color 0.15s ease; }
.card:hover { transform: translateY(-2px); border-color: var(--line-strong); text-decoration: none; }
.card .thumb { aspect-ratio: 3 / 2; background: #f5f4ee; }
.card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.card .body { padding: 16px 18px 20px; display: grid; gap: 6px; align-content: start; }
.card .n { font: 700 0.7rem/1.2 var(--display); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.card h4 { font: 800 1.05rem/1.25 var(--display); letter-spacing: -0.01em; }
.card p { font-size: 0.95rem; color: var(--muted); }
.card .done-badge { position: absolute; top: 12px; right: 12px; background: var(--ink); color: var(--light); font: 700 0.68rem/1 var(--display); letter-spacing: 0.08em; text-transform: uppercase; padding: 7px 10px; border-radius: 999px; }
.not-here { list-style: none; padding: 0; display: grid; gap: 10px; }
.not-here li { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 10px; align-items: start; }
.not-here li::before { content: "×"; font: 800 1.1rem/1.4 var(--display); color: var(--flame-text); }
.two { display: grid; gap: 24px; }
@media (min-width: 900px) { .two { grid-template-columns: 1fr 1fr; gap: 40px; } }

/* ---------- Лестница 0–10 ---------- */
.ladder { display: grid; gap: 16px; }
.ladder-steps { display: grid; grid-template-columns: repeat(11, minmax(0, 1fr)); gap: 6px; align-items: end; height: 140px; }
.ladder-steps button { border: 0; border-radius: 10px 10px 4px 4px; background: var(--tint); cursor: pointer; display: grid; align-content: end; justify-items: center; padding: 0 0 8px; font: 800 0.85rem/1 var(--display); color: var(--fg); min-height: 30px; }
.ladder-steps button:hover { background: rgba(var(--accent-rgb), 0.35); }
.ladder-steps button[aria-pressed="true"] { background: var(--accent); color: var(--ink); }
.ladder-steps button.below { background: rgba(var(--accent-rgb), 0.45); }
.ladder-now { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 14px 16px; }

/* ---------- Урок: шапка ---------- */
.lesson-hero { padding-block: 32px 8px; }
.lesson-hero .col { display: grid; gap: 16px; }
.lesson-title { font: 900 clamp(1.55rem, 7.4vw, 3.5rem)/1.05 var(--display); letter-spacing: -0.035em; overflow-wrap: anywhere; hyphens: auto; }
.rule-line { font: 700 clamp(1.15rem, 2.4vw, 1.45rem)/1.4 var(--sans); }
.meta { display: flex; flex-wrap: wrap; gap: 6px 18px; color: var(--muted); font-size: 0.95rem; }
.cover { border-radius: var(--r); overflow: hidden; background: #f5f4ee; aspect-ratio: 3 / 2; margin-top: 8px; }
.cover img { width: 100%; height: 100%; object-fit: cover; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips a { text-decoration: none; color: var(--fg); background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: 0.88rem; font-weight: 600; }
.chips a:hover { border-color: var(--line-strong); }

/* ---------- Урок: блоки ---------- */
.lesson-body { padding-block: 16px 48px; }
.lesson-body .col { display: grid; gap: 48px; }
.block { display: grid; gap: 18px; scroll-margin-top: 16px; }
.block > h2 { display: flex; align-items: center; gap: 12px; font: 800 clamp(1.35rem, 2.8vw, 1.8rem)/1.15 var(--display); letter-spacing: -0.025em; }
.block > h2 .tag { flex: none; width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: var(--accent); color: var(--ink); font: 900 0.95rem/1 var(--display); }
.prose { display: grid; gap: 14px; }
.prose h3 { font: 800 1.15rem/1.3 var(--display); letter-spacing: -0.015em; margin-top: 10px; }
.prose ul, .prose ol { padding-left: 1.3em; display: grid; gap: 6px; }
.rule-card { background: var(--strong-bg); color: var(--strong-fg); border-radius: var(--r); padding: 22px 24px; font: 800 clamp(1.1rem, 2.4vw, 1.4rem)/1.35 var(--display); letter-spacing: -0.015em; }
.rule-card small { display: block; font: 700 0.7rem/1.3 var(--display); letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.note { font-size: 0.95rem; color: var(--muted); }
.examples { list-style: none; padding: 0; display: grid; gap: 12px; }
.examples li { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 16px 18px; display: grid; gap: 4px; }
.examples li b { font-family: var(--display); font-weight: 800; font-size: 0.98rem; letter-spacing: -0.01em; }
.mistake { border-radius: var(--r-sm); background: var(--flame-tint); padding: 16px 18px; display: grid; gap: 6px; }
.mistake h3 { font: 800 1.02rem/1.3 var(--display); letter-spacing: -0.01em; color: var(--flame-text); }
.mistake .fix { font-weight: 600; }
.mistake .fix::before { content: "Как исправить: "; color: var(--muted); font-weight: 600; }
.mistakes-list { display: grid; gap: 12px; }

/* Шутка в тему: Кубик и Фишка */
.joke { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; padding: 18px 20px; border-radius: var(--r); background: var(--card); border: 2px dashed var(--line-strong); }
.joke .eyebrow { color: var(--muted); }
.joke .who { position: relative; display: block; min-height: 30px; padding-left: 44px; margin: 0; }
.joke .who::before { content: ""; position: absolute; left: 0; top: -2px; width: 30px; height: 30px; -webkit-mask-position: center; mask-position: center; -webkit-mask-size: contain; mask-size: contain; -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat; }
.joke .kubik::before { background: var(--fg); -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill-rule='evenodd' d='M6 2h12a4 4 0 0 1 4 4v12a4 4 0 0 1-4 4H6a4 4 0 0 1-4-4V6a4 4 0 0 1 4-4zM8 6.2a1.8 1.8 0 1 0 0 3.6a1.8 1.8 0 1 0 0-3.6zM12 10.2a1.8 1.8 0 1 0 0 3.6a1.8 1.8 0 1 0 0-3.6zM16 14.2a1.8 1.8 0 1 0 0 3.6a1.8 1.8 0 1 0 0-3.6z'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill-rule='evenodd' d='M6 2h12a4 4 0 0 1 4 4v12a4 4 0 0 1-4 4H6a4 4 0 0 1-4-4V6a4 4 0 0 1 4-4zM8 6.2a1.8 1.8 0 1 0 0 3.6a1.8 1.8 0 1 0 0-3.6zM12 10.2a1.8 1.8 0 1 0 0 3.6a1.8 1.8 0 1 0 0-3.6zM16 14.2a1.8 1.8 0 1 0 0 3.6a1.8 1.8 0 1 0 0-3.6z'/%3E%3C/svg%3E"); }
.joke .fishka::before { background: var(--accent); -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2a3.2 3.2 0 0 1 3.2 3.2c0 1.1-.6 2.1-1.4 2.7 3.6.5 8.2 1.7 8.2 3.6 0 1.3-2.3 1.9-5.3 1.8l2.9 7.1c.3.8-.3 1.6-1.1 1.6h-3.1L12 17.3 8.6 22H5.5c-.8 0-1.4-.8-1.1-1.6l2.9-7.1c-3 .1-5.3-.5-5.3-1.8 0-1.9 4.6-3.1 8.2-3.6-.8-.6-1.4-1.6-1.4-2.7A3.2 3.2 0 0 1 12 2z'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2a3.2 3.2 0 0 1 3.2 3.2c0 1.1-.6 2.1-1.4 2.7 3.6.5 8.2 1.7 8.2 3.6 0 1.3-2.3 1.9-5.3 1.8l2.9 7.1c.3.8-.3 1.6-1.1 1.6h-3.1L12 17.3 8.6 22H5.5c-.8 0-1.4-.8-1.1-1.6l2.9-7.1c-3 .1-5.3-.5-5.3-1.8 0-1.9 4.6-3.1 8.2-3.6-.8-.6-1.4-1.6-1.4-2.7A3.2 3.2 0 0 1 12 2z'/%3E%3C/svg%3E"); }
.joke .who b { font: 800 0.95rem/1.5 var(--display); letter-spacing: -0.01em; margin-right: 4px; }

/* Самопроверка */
.q { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 18px; display: grid; gap: 12px; }
.q-text { font-weight: 700; }
.q-opts { display: grid; gap: 8px; }
.q-opts button { text-align: left; border: 2px solid var(--line); background: transparent; border-radius: 12px; padding: 12px 14px; cursor: pointer; line-height: 1.45; }
.q-opts button:hover:not([disabled]) { border-color: var(--line-strong); }
.q-opts button.right { border-color: var(--good); background: var(--good-tint); }
.q-opts button.wrong { border-color: var(--bad); background: var(--bad-tint); }
.q-opts button[disabled] { cursor: default; }
.q-why { border-left: 3px solid var(--accent); padding: 4px 0 4px 14px; display: grid; gap: 6px; }
.q-why p.ok { font-weight: 700; color: var(--good); }
.q-why p.no { font-weight: 700; color: var(--bad); }
.q-again { justify-self: start; }

/* Задание */
.task { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; display: grid; gap: 14px; }
.task ol.steps { padding-left: 1.3em; display: grid; gap: 8px; }
.task .done-when { background: var(--tint); border-radius: 12px; padding: 12px 14px; }
.task .done-when::before { content: "Получилось, если: "; font-weight: 700; }
.mark[aria-pressed="true"] { background: var(--ink); color: var(--light); border-color: var(--ink); }
.mark[aria-pressed="true"]::before { content: "✓ "; }

/* Глубже и Для ведущего */
details.more { border: 1px solid var(--line); border-radius: var(--r); background: var(--card); }
details.more > summary { cursor: pointer; list-style: none; padding: 18px 22px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; }
details.more > summary::-webkit-details-marker { display: none; }
details.more > summary::after { content: "+"; font: 800 1.4rem/1 var(--display); color: var(--muted); }
details.more[open] > summary::after { content: "−"; }
details.more > summary .t { display: grid; gap: 2px; }
details.more > summary .t b { font: 800 1.1rem/1.25 var(--display); letter-spacing: -0.015em; }
details.more > summary .t span { color: var(--muted); font-size: 0.92rem; }
details.more > .inner { padding: 0 22px 22px; display: grid; gap: 14px; }
details.more.deeper > summary .t b::before { content: "Глубже · "; color: var(--deep); }
details.more.guide > summary .t b::before { content: "Для ведущего · "; color: var(--deep); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) details.more > summary .t b::before { color: var(--accent); } }
:root[data-theme="dark"] details.more > summary .t b::before { color: var(--accent); }
.plan { list-style: none; padding: 0; display: grid; gap: 10px; counter-reset: p; }
.plan li { display: grid; grid-template-columns: 74px minmax(0, 1fr); gap: 12px; }
.plan li .time { font: 800 0.8rem/1.6 var(--display); color: var(--muted); }
@media (max-width: 480px) { .plan li { grid-template-columns: minmax(0, 1fr); gap: 2px; } }
.h1, .h2, .block > h2, .prose h3, .card h4 { overflow-wrap: anywhere; hyphens: auto; }
.refs { padding-left: 1.2em; display: grid; gap: 6px; }

/* Навигация урока */
.lesson-foot { padding-block: 8px 56px; }
.lesson-foot .col { display: grid; gap: 20px; }
.finish { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 18px 20px; }
.pager { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .pager { grid-template-columns: 1fr 1fr; } }
.pager a { display: grid; gap: 4px; padding: 16px 18px; border-radius: var(--r-sm); border: 1px solid var(--line); background: var(--card); color: var(--fg); text-decoration: none; }
.pager a:hover { border-color: var(--line-strong); }
.pager a span { font: 700 0.7rem/1.3 var(--display); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.pager a b { font: 800 1rem/1.3 var(--display); letter-spacing: -0.01em; }
.pager a.next { text-align: right; }

/* ---------- Подвал ---------- */
.site-foot { background: var(--ink); color: rgba(245, 244, 238, 0.78); margin-top: 24px; }
.site-foot .wrap { padding-block: 40px; display: grid; gap: 18px; }
.site-foot a { color: var(--light); }
.site-foot .motto { font: 900 clamp(1.1rem, 2.6vw, 1.6rem)/1.2 var(--display); color: var(--light); letter-spacing: -0.02em; }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-foot small { color: rgba(245, 244, 238, 0.6); font-size: 0.82rem; }

/* ---------- Мини-игры: общий набор ---------- */
.demo { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; display: grid; gap: 16px; min-width: 0; }
.demo-head { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between; }
.demo-title { font: 800 1.05rem/1.3 var(--display); letter-spacing: -0.01em; }
.demo-say { background: var(--paper); border-radius: 14px; padding: 14px 16px; line-height: 1.55; }
.demo-say.good { background: var(--good-tint); }
.demo-say.bad { background: var(--bad-tint); }
.choice-row { display: flex; flex-wrap: wrap; gap: 10px; }
.choice { flex: 1 1 140px; min-height: 64px; border-radius: 18px; border: 2px solid var(--line-strong); background: var(--paper); cursor: pointer; font: 800 0.95rem/1.2 var(--display); letter-spacing: -0.01em; padding: 10px 14px; display: grid; place-items: center; gap: 4px; text-align: center; transition: transform 0.12s ease, border-color 0.12s ease, background 0.12s ease; }
.choice small { font: 500 0.8rem/1.3 var(--sans); color: var(--muted); letter-spacing: 0; }
.choice:hover:not([disabled]) { border-color: var(--fg); transform: translateY(-1px); }
.choice[aria-pressed="true"], .choice.on { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.choice[aria-pressed="true"] small, .choice.on small { color: rgba(11, 12, 15, 0.7); }
.choice[disabled] { opacity: 0.5; cursor: default; }
.stats { display: flex; flex-wrap: wrap; gap: 10px; }
.stat { flex: 1 1 120px; background: var(--paper); border-radius: 14px; padding: 10px 14px; display: grid; gap: 2px; }
.stat span { font-size: 0.8rem; color: var(--muted); }
.stat b { font: 900 1.4rem/1.1 var(--display); font-variant-numeric: tabular-nums; }
.pill { display: inline-flex; align-items: center; gap: 4px; border-radius: 999px; padding: 2px 10px; font-size: 0.82rem; font-weight: 700; background: var(--paper); border: 1px solid var(--line); }
.pill.good { background: var(--good-tint); border-color: transparent; color: var(--good); }
.pill.bad { background: var(--bad-tint); border-color: transparent; color: var(--bad); }
.pill.acc { background: var(--tint); border-color: transparent; }
.log { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.meter { height: 12px; border-radius: 999px; background: var(--paper); overflow: hidden; }
.meter > i { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width 0.3s ease; }
.range { display: grid; gap: 6px; }
.range label { display: flex; justify-content: space-between; gap: 12px; font-size: 0.92rem; color: var(--muted); }
.range output { font: 800 0.95rem/1.2 var(--display); color: var(--fg); }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.seg { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 4px; border-radius: 999px; border: 1px solid var(--line-strong); }
.seg button { border: 0; background: transparent; border-radius: 999px; padding: 8px 14px; cursor: pointer; font-weight: 600; font-size: 0.92rem; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--light); }
.mx-wrap { overflow-x: auto; max-width: 100%; }
.mx { border-collapse: separate; border-spacing: 0; font-variant-numeric: tabular-nums; min-width: 100%; }
.mx th, .mx td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: center; white-space: nowrap; }
.mx thead th { font: 700 0.78rem/1.3 var(--display); letter-spacing: 0.04em; color: var(--muted); }
.mx tbody th { text-align: left; font-weight: 700; }
.mx td.best { background: var(--tint); font-weight: 800; }
.mx tr.dead th, .mx tr.dead td { color: var(--muted); text-decoration: line-through; }
.mx .p1 { color: var(--p1); font-weight: 700; }
.mx .p2 { color: var(--p2); font-weight: 700; }
.stepper { display: inline-flex; align-items: center; gap: 2px; }
.stepper button { width: 28px; height: 28px; border-radius: 8px; border: 1px solid var(--line-strong); background: var(--paper); cursor: pointer; font-weight: 800; line-height: 1; }
.stepper b { min-width: 2ch; display: inline-block; text-align: center; font-family: var(--display); }
.board { display: grid; gap: 6px; }
.cell { aspect-ratio: 1; border-radius: 14px; border: 2px solid var(--line-strong); background: var(--paper); cursor: pointer; font: 900 clamp(1.4rem, 6vw, 2.4rem)/1 var(--display); display: grid; place-items: center; }
.cell[disabled] { cursor: default; }
.demo-error { color: var(--bad); }

/* ---------- Словарь и источники ---------- */
.page-head { padding-block: 40px 24px; }
.page-head .col, .page-body .col { display: grid; gap: 16px; }
.page-body { padding-block: 8px 56px; }
.gloss { display: grid; gap: 0; border-top: 1px solid var(--line); }
.gloss > div { display: grid; gap: 4px 20px; padding: 14px 0; border-bottom: 1px solid var(--line); }
@media (min-width: 720px) { .gloss > div { grid-template-columns: 220px minmax(0, 1fr); } }
.gloss dt { font: 800 1rem/1.35 var(--display); letter-spacing: -0.01em; }
.gloss dt small { display: block; font: 500 0.82rem/1.4 var(--sans); color: var(--muted); letter-spacing: 0; margin-top: 2px; }
.search { width: 100%; padding: 14px 16px; border-radius: 14px; border: 1px solid var(--line-strong); background: var(--card); color: var(--fg); font: inherit; }
.tbl-wrap { overflow-x: auto; max-width: 100%; }
.tbl { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
.tbl th, .tbl td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.tbl thead th { font: 700 0.72rem/1.3 var(--display); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--line-strong); }
.tbl td:first-child, .tbl th:first-child { padding-left: 0; }
.checklist { list-style: none; padding: 0; display: grid; gap: 8px; }
.checklist label { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 12px; align-items: start; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; cursor: pointer; }
.checklist input { width: 20px; height: 20px; margin-top: 3px; accent-color: var(--accent); }

@media print {
  .band, .site-head, .site-foot, .chips, .pager, .finish, .demo, .btn { display: none !important; }
  details.more { border: 0; }
  details.more > .inner { padding: 0; }
  body { background: #fff; color: #000; }
}