:root {
  --bg: var(--tg-theme-secondary-bg-color, #f2f3f7);
  --card: var(--tg-theme-section-bg-color, var(--tg-theme-bg-color, #ffffff));
  --text: var(--tg-theme-text-color, #15171c);
  --hint: var(--tg-theme-hint-color, #8a8f99);
  --sub: var(--tg-theme-subtitle-text-color, #6b7280);
  --accent: var(--tg-theme-button-color, #2f6fde);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --link: var(--tg-theme-link-color, var(--accent));
  --head: var(--tg-theme-section-header-text-color, var(--accent));
  --warn: #c27c0e;
  --line: color-mix(in srgb, var(--text) 9%, transparent);
  --soft: color-mix(in srgb, var(--accent) 9%, var(--card));
  --radius: 16px;
  --serif: "Iowan Old Style", "Palatino Linotype", Georgia, "Times New Roman", serif;
  color-scheme: light dark;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", Roboto, "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(24px + env(safe-area-inset-bottom));
}
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }

/* шапка */
.top {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.6) blur(14px); -webkit-backdrop-filter: saturate(1.6) blur(14px);
  padding: 14px 16px 10px;
}
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.logo {
  width: 40px; height: 40px; border-radius: 12px; flex: none;
  display: grid; place-items: center;
  font: 600 22px/1 var(--serif); color: var(--accent-text);
  background: linear-gradient(140deg, var(--accent), color-mix(in srgb, var(--accent) 60%, #000));
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 35%, transparent);
}
.title { font-weight: 650; font-size: 18px; letter-spacing: -.01em; }
.subtitle { color: var(--hint); font-size: 13px; }
.search {
  display: flex; align-items: center; gap: 8px;
  background: var(--card); border-radius: 12px; padding: 0 12px; height: 44px;
  box-shadow: 0 1px 0 var(--line);
}
.search svg { width: 18px; height: 18px; fill: none; stroke: var(--hint); stroke-width: 2; stroke-linecap: round; flex: none; }
.search input {
  flex: 1; min-width: 0; height: 100%; border: 0; outline: 0; background: none;
  font: inherit; color: var(--text);
}
.search input::placeholder { color: var(--hint); }
.search input::-webkit-search-cancel-button { display: none; }
.clear { font-size: 22px; color: var(--hint); width: 28px; height: 28px; line-height: 1; }
.tabs {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin-top: 10px;
  background: color-mix(in srgb, var(--text) 6%, transparent); border-radius: 11px; padding: 3px;
}
.tabs button { height: 32px; border-radius: 9px; font-size: 14px; font-weight: 550; color: var(--sub); transition: background .2s, color .2s; }
.tabs button.on { background: var(--card); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.top.compact { display: none; }
main { padding-top: 6px; }
.top.compact + main { padding-top: 14px; }
[id^="sec-"] { scroll-margin-top: 14px; }

main { padding: 6px 16px 0; }
.fade { animation: fade .22s ease-out; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* общие блоки */
.sec-title { color: var(--head); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; margin: 18px 4px 8px; }
.card { background: var(--card); border-radius: var(--radius); overflow: hidden; }
.card + .card { margin-top: 10px; }
.row { display: block; width: 100%; text-align: left; padding: 13px 16px; position: relative; }
.row + .row::before { content: ""; position: absolute; left: 16px; right: 0; top: 0; height: 1px; background: var(--line); }
.row:active { background: color-mix(in srgb, var(--text) 5%, transparent); }
.row .q { font-weight: 550; line-height: 1.35; }
.meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 7px; }
.pill { font-size: 12px; line-height: 1; padding: 5px 8px; border-radius: 999px; background: color-mix(in srgb, var(--text) 6%, transparent); color: var(--sub); }
.pill.acc { background: var(--soft); color: var(--accent); font-weight: 600; }
.pill.warn { background: color-mix(in srgb, var(--warn) 14%, transparent); color: var(--warn); }
.count { float: right; color: var(--hint); font-size: 14px; margin-left: 8px; }
.empty { text-align: center; color: var(--hint); padding: 36px 20px 12px; }
.empty .big { font: 600 44px/1 var(--serif); color: color-mix(in srgb, var(--accent) 50%, var(--hint)); margin-bottom: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 14px; }
.chip { background: var(--card); border-radius: 999px; padding: 8px 13px; font-size: 14px; color: var(--link); box-shadow: 0 1px 0 var(--line); }
.chip:active { transform: scale(.97); }
.note { color: var(--hint); font-size: 13px; margin: 10px 4px; }
.skeleton { height: 64px; border-radius: var(--radius); background: linear-gradient(90deg, var(--card) 0%, color-mix(in srgb, var(--card) 70%, var(--bg)) 50%, var(--card) 100%); background-size: 200% 100%; animation: shimmer 1.1s infinite linear; margin-top: 10px; }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ответ */
.answer { padding: 18px 16px 16px; }
.answer h1 { font-size: 21px; line-height: 1.3; margin: 0 0 12px; letter-spacing: -.015em; }
.answer p { margin: 0; white-space: pre-line; }
.norm { display: flex; gap: 8px; align-items: flex-start; margin-top: 14px; padding: 10px 12px; border-radius: 12px; background: var(--soft); color: var(--text); font-size: 14px; }
.norm b { color: var(--accent); }
.warnbox { margin-top: 10px; font-size: 13px; color: var(--warn); }

/* практика */
.line-h { display: flex; align-items: center; gap: 8px; margin: 20px 4px 8px; font-weight: 600; font-size: 14px; color: var(--text); }
.line-h::before { content: ""; width: 4px; height: 16px; border-radius: 2px; background: var(--accent); }
.act { padding: 16px; }
.act + .act { border-top: 1px solid var(--line); }
.cite { font-weight: 650; line-height: 1.35; }
.court { display: inline-block; margin-top: 6px; }
.fabula { color: var(--sub); font-size: 14px; margin-top: 8px; }
blockquote {
  margin: 12px 0 0; padding: 12px 14px 12px 16px; position: relative;
  font: 16px/1.55 var(--serif); color: var(--text);
  background: color-mix(in srgb, var(--accent) 6%, var(--card));
  border-left: 3px solid var(--accent); border-radius: 4px 12px 12px 4px;
}
blockquote .lbl { display: block; font: italic 12px/1.4 -apple-system, Roboto, sans-serif; color: var(--hint); margin-bottom: 4px; }
.copy {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 8px;
  font: 600 13px/1 -apple-system, Roboto, sans-serif; color: var(--link);
}
.copy svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; }
.gist { margin-top: 10px; font-size: 14px; color: var(--sub); }
.gist b { color: var(--text); font-weight: 600; }
.caveat { margin-top: 8px; font-size: 13px; color: var(--warn); }
.links { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.links button { text-align: left; color: var(--link); font-size: 14px; line-height: 1.35; }
.source { color: var(--hint); font-size: 12px; margin: 14px 4px 0; line-height: 1.45; }
.filter { display: flex; gap: 8px; overflow-x: auto; padding: 2px 0 4px; margin: 8px -16px 0; padding-left: 16px; scrollbar-width: none; }
.filter::-webkit-scrollbar { display: none; }
.filter .chip { white-space: nowrap; color: var(--sub); }
.filter .chip.on { background: var(--accent); color: var(--accent-text); }

#toast {
  position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px);
  background: color-mix(in srgb, var(--text) 88%, transparent); color: var(--bg);
  padding: 10px 16px; border-radius: 999px; font-size: 14px; opacity: 0; pointer-events: none;
  transition: opacity .2s, transform .2s; z-index: 20;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }
.denied { text-align: center; padding: 60px 24px; }
.denied .big { font: 600 54px/1 var(--serif); color: var(--hint); }

/* ---------- обучение ---------- */
.hero { padding: 18px 16px; display: flex; gap: 16px; align-items: center; }
.ring { width: 76px; height: 76px; flex: none; position: relative; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 7; }
.ring .bg { stroke: color-mix(in srgb, var(--text) 8%, transparent); }
.ring .fg { stroke: var(--accent); stroke-linecap: round; transition: stroke-dashoffset .6s ease; }
.ring .val { position: absolute; inset: 0; display: grid; place-items: center; font-weight: 700; font-size: 18px; }
.ring .val small { display: block; font-size: 11px; font-weight: 500; color: var(--hint); margin-top: -4px; text-align: center; }
.hero-txt { min-width: 0; }
.hero-txt .h { font-weight: 650; font-size: 17px; }
.hero-txt .s { color: var(--sub); font-size: 14px; margin-top: 2px; }
.btn {
  display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%;
  height: 48px; border-radius: 12px; font-weight: 600; font-size: 16px;
  background: var(--accent); color: var(--accent-text); margin-top: 12px;
  transition: transform .1s, opacity .2s;
}
.btn:active { transform: scale(.98); }
.btn.sec { background: var(--soft); color: var(--accent); }
.btn[disabled] { opacity: .5; }
.btns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btns .btn { margin-top: 12px; }
.mod { display: flex; gap: 12px; align-items: center; }
.num {
  width: 34px; height: 34px; flex: none; border-radius: 10px; display: grid; place-items: center;
  font-weight: 700; font-size: 15px; background: color-mix(in srgb, var(--text) 7%, transparent); color: var(--sub);
}
.mod.passed .num { background: color-mix(in srgb, #2fa84f 16%, transparent); color: #2fa84f; }
.mod.open .num { background: var(--accent); color: var(--accent-text); }
.mod.locked { opacity: .55; }
.mod .t { flex: 1; min-width: 0; }
.mod .t .q { font-weight: 550; }
.mod .t .s { color: var(--hint); font-size: 13px; margin-top: 2px; }
.mod .st { color: var(--hint); font-size: 18px; flex: none; }
.goal { color: var(--sub); margin-top: 8px; }
.kicker { color: var(--accent); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.toc { display: flex; gap: 8px; overflow-x: auto; margin: 12px -16px 0; padding: 0 16px 2px; scrollbar-width: none; }
.toc::-webkit-scrollbar { display: none; }
.toc .chip { white-space: nowrap; color: var(--sub); }
.doc { padding: 16px; }
.doc h2 { font-size: 18px; margin: 0 0 10px; letter-spacing: -.01em; }
.doc p { margin: 0 0 10px; }
.doc ul { margin: 0 0 10px; padding-left: 20px; }
.doc li { margin: 4px 0; }
.doc li::marker { color: var(--accent); }
.callout { display: flex; gap: 10px; padding: 12px; border-radius: 12px; margin: 0 0 10px; font-size: 15px;
  background: color-mix(in srgb, var(--warn) 12%, var(--card)); }
.tbl { border-radius: 12px; border: 1px solid var(--line); margin: 0 0 10px; overflow: hidden; }
.tbl .tr { padding: 10px 12px; }
.tbl .tr + .tr { border-top: 1px solid var(--line); }
.tbl .th { font-weight: 650; margin-bottom: 4px; }
.tbl .kv { font-size: 14px; margin-top: 3px; }
.tbl .kv span { color: var(--hint); }
.norms { display: flex; flex-wrap: wrap; gap: 6px; }
.ref { padding: 14px 16px; }
.ref + .ref { border-top: 1px solid var(--line); }
.ref .rh { font-weight: 650; font-size: 15px; margin-bottom: 4px; }
.ref .rt { font-size: 15px; color: var(--text); }
.mist { display: flex; gap: 10px; padding: 12px 16px; }
.mist + .mist { border-top: 1px solid var(--line); }
.mist::before { content: "✕"; color: #d64545; font-weight: 700; flex: none; }

/* вопрос */
.qhead { display: flex; justify-content: space-between; align-items: baseline; margin: 6px 4px 8px; color: var(--hint); font-size: 13px; }
.bar { height: 6px; border-radius: 3px; background: color-mix(in srgb, var(--text) 8%, transparent); overflow: hidden; margin: 0 4px 14px; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 3px; transition: width .35s ease; }
.qcard { padding: 18px 16px; }
.qcard .lead { color: var(--sub); font-size: 15px; margin: 0 0 10px; }
.qcard .qq { font-weight: 650; font-size: 18px; line-height: 1.4; }
.qmod { color: var(--hint); font-size: 13px; margin-bottom: 8px; }
.opts { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.opt {
  display: flex; gap: 12px; align-items: flex-start; text-align: left; width: 100%;
  padding: 14px; border-radius: 14px; background: var(--card); border: 1.5px solid transparent;
  box-shadow: 0 1px 0 var(--line); transition: border-color .2s, background .2s, transform .1s;
}
.opt:active:not([disabled]) { transform: scale(.99); }
.opt .l { width: 26px; height: 26px; flex: none; border-radius: 50%; display: grid; place-items: center;
  font-size: 13px; font-weight: 700; background: color-mix(in srgb, var(--text) 7%, transparent); color: var(--sub); }
.opt.right { border-color: #2fa84f; background: color-mix(in srgb, #2fa84f 10%, var(--card)); }
.opt.right .l { background: #2fa84f; color: #fff; }
.opt.wrong { border-color: #d64545; background: color-mix(in srgb, #d64545 9%, var(--card)); }
.opt.wrong .l { background: #d64545; color: #fff; }
.opt.picked { border-color: var(--accent); }
.opt[disabled] { cursor: default; }
.explain { margin-top: 12px; padding: 14px 16px; border-radius: 14px; background: var(--card); font-size: 15px; }
.explain b.ok { color: #2fa84f; } .explain b.no { color: #d64545; }
.result { text-align: center; padding: 26px 16px 18px; }
.result .score { font-size: 46px; font-weight: 750; letter-spacing: -.02em; }
.result .score small { font-size: 20px; color: var(--hint); font-weight: 600; }
.result .verdict { font-weight: 650; font-size: 18px; margin-top: 4px; }
.result .verdict.ok { color: #2fa84f; }
.result .s { color: var(--sub); margin-top: 6px; }
.wrongs .w { padding: 14px 16px; }
.wrongs .w + .w { border-top: 1px solid var(--line); }
.wrongs .wq { font-weight: 600; }
.wrongs .wy { color: #d64545; font-size: 14px; margin-top: 6px; }
.wrongs .wr { color: #2fa84f; font-size: 14px; margin-top: 2px; }
.wrongs .we { color: var(--sub); font-size: 14px; margin-top: 6px; }
.confetti { font-size: 40px; animation: pop .5s ease-out; }
@keyframes pop { from { transform: scale(.4); opacity: 0; } to { transform: none; opacity: 1; } }