/* «Тихий ум» — школа Neo Shen: тушь и воздух.
   Светлый off-white фон, чернильно-синяя типографика, разбавленная тушь-индиго,
   искра тёплого золота для прогресса. Мягкое свечение/диффузия вместо рамок. */
:root{
  /* поверхности */
  --bg:#F8F9FB; --bg2:#EEF2F8; --panel:#FFFFFFcc; --panel-soft:#EFF3F9;
  /* тушь (текст) */
  --ink:#1B2A3A; --ink-soft:#5B6B80; --ink-faint:#646F84;
  /* акцент-индиго (разведённая тушь) */
  --indigo:#2D5B8E; --indigo-soft:#4E7AAB; --indigo-dim:#9DB6D2;
  --wash:#EAF1FA;                 /* фон-выделение, разбавленная заливка */
  --wash-2:rgba(45,91,142,.07);   /* совсем светлая туш-диффузия */
  /* золото — только маркеры прогресса/детали, НЕ текст на светлом */
  --gold:#C9A86A; --gold-soft:#D8BE8A; --gold-dim:#A98A52;
  /* тонкие чернильные разделители */
  --line:#DCE3EC; --line-soft:#E6ECF3;
  --radius:18px; --maxw:880px; --read:680px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 1px 2px rgba(27,42,58,.04), 0 12px 30px -18px rgba(27,42,58,.18);
  --shadow-lift:0 2px 4px rgba(27,42,58,.05), 0 22px 48px -22px rgba(45,91,142,.32);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:linear-gradient(180deg,var(--bg) 0%,var(--bg) 40%,var(--bg2) 100%);
  background-attachment:fixed;
  color:var(--ink);
  font-family:Manrope,system-ui,-apple-system,sans-serif; font-weight:400;
  line-height:1.7; min-height:100vh; overflow-x:hidden;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  font-kerning:normal; font-optical-sizing:auto;
}
/* мягкая диффузия туши в воздухе — поэтичная пустота, не китч */
.glow{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(70% 50% at 50% -8%, rgba(45,91,142,.07), transparent 60%),
    radial-gradient(55% 45% at 88% 108%, rgba(45,91,142,.05), transparent 65%);}

/* ---- topbar ---- */
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;backdrop-filter:blur(12px) saturate(1.1);
  background:linear-gradient(180deg,rgba(248,249,251,.92),rgba(248,249,251,.66));
  border-bottom:1px solid var(--line-soft);}
.brand{display:flex;align-items:center;gap:12px;cursor:pointer;user-select:none}
.brand-mark{width:13px;height:13px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,var(--indigo-soft),var(--indigo));
  box-shadow:0 0 0 5px rgba(45,91,142,.10), 0 0 16px 2px rgba(45,91,142,.30);}
.brand-name{font-family:Lora,Georgia,serif;font-size:1.45rem;font-weight:600;letter-spacing:.2px;color:var(--ink)}
.modes{display:flex;gap:4px}
.mode-tab{background:none;border:1px solid transparent;color:var(--ink-soft);
  font-family:Manrope,sans-serif;font-size:.88rem;font-weight:500;padding:8px 16px;border-radius:999px;
  cursor:pointer;transition:.3s var(--ease);}
.mode-tab:hover{color:var(--ink);background:var(--wash)}
.mode-tab.active{color:#fff;background:var(--indigo);font-weight:600;box-shadow:0 6px 16px -8px rgba(45,91,142,.6)}

/* ---- views ---- */
#app{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:40px 24px 96px}
.view{display:none;animation:fade .6s var(--ease)}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.view-head{display:flex;align-items:baseline;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:28px}
.view-head h2{font-family:Lora,Georgia,serif;font-weight:500;font-size:clamp(1.7rem,4vw,2.1rem);letter-spacing:.1px;color:var(--ink);text-wrap:balance}

/* ---- home ---- */
.view-home{text-align:center;padding-top:14px}
/* центр осознанности — ink-wash: мягкое разведённое пятно туши с тихим пульсом */
.orbits{position:relative;width:220px;height:220px;margin:18px auto 34px}
.core{position:absolute;inset:50% auto auto 50%;width:120px;height:120px;transform:translate(-50%,-50%);
  border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(45,91,142,.22),rgba(45,91,142,.10) 45%,transparent 70%);
  filter:blur(2px);animation:breathe 7s var(--ease) infinite}
@keyframes breathe{0%,100%{transform:translate(-50%,-50%) scale(.96);opacity:.85}50%{transform:translate(-50%,-50%) scale(1.12);opacity:1}}
/* тонкие чернильные кольца-разводы вместо механических орбит */
.orbit{position:absolute;inset:50% auto auto 50%;border-radius:50%;transform:translate(-50%,-50%);
  border:1px solid transparent;background:
    radial-gradient(closest-side,transparent 96%,rgba(45,91,142,.12)) padding-box;}
.orbit i{position:absolute;top:-2px;left:50%;width:5px;height:5px;border-radius:50%;
  background:var(--indigo-soft);box-shadow:0 0 9px rgba(45,91,142,.5);opacity:.7}
.orbit.o1{width:96px;height:96px;animation:drift 22s var(--ease) infinite}
.orbit.o2{width:152px;height:152px;animation:drift 34s var(--ease) infinite reverse}
.orbit.o2 i{background:var(--gold);box-shadow:0 0 9px rgba(201,168,106,.6)}
.orbit.o3{width:210px;height:210px;animation:drift 50s var(--ease) infinite}
.orbit.o3 i{background:var(--indigo-dim);box-shadow:0 0 7px rgba(157,182,210,.6)}
/* мягкое дыхание-дрейф, не резкий механический спин */
@keyframes drift{0%{transform:translate(-50%,-50%) rotate(0deg)}100%{transform:translate(-50%,-50%) rotate(360deg)}}
.hero-title{font-family:Lora,Georgia,serif;font-weight:500;font-size:clamp(2.1rem,5.5vw,3.2rem);
  line-height:1.12;letter-spacing:.1px;margin-bottom:18px;color:var(--ink);text-wrap:balance}
.hero-sub{color:var(--ink-soft);max-width:54ch;margin:0 auto 48px;font-size:1.06rem;line-height:1.65;text-wrap:pretty}
.doors{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;text-align:left}
.door{background:var(--panel);backdrop-filter:blur(4px);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 24px;cursor:pointer;color:var(--ink);text-align:left;
  display:flex;flex-direction:column;gap:9px;transition:.4s var(--ease);position:relative;overflow:hidden;
  box-shadow:var(--shadow)}
.door::after{content:"";position:absolute;inset:0;
  background:radial-gradient(70% 80% at 50% -10%,var(--wash-2),transparent 70%);opacity:0;transition:.4s}
.door:hover{transform:translateY(-4px);border-color:var(--indigo-dim);box-shadow:var(--shadow-lift)}
.door:hover::after{opacity:1}
.door-k{font-family:Lora,Georgia,serif;font-size:1.05rem;color:var(--indigo);letter-spacing:1.5px}
.door-t{font-family:Lora,Georgia,serif;font-size:1.5rem;font-weight:500;color:var(--ink)}
.door-d{color:var(--ink-soft);font-size:.92rem;line-height:1.55}

/* ---- submodes / tabs ---- */
.submodes,.submode{display:flex}
.submodes{gap:5px}
.submode{background:var(--panel-soft);border:1px solid var(--line);color:var(--ink-soft);
  padding:7px 15px;border-radius:999px;font-size:.85rem;font-weight:500;cursor:pointer;transition:.3s var(--ease)}
.submode:hover{color:var(--ink);border-color:var(--indigo-dim)}
.submode.active{background:var(--indigo);color:#fff;border-color:var(--indigo);font-weight:600}

/* ---- chat ---- */
.chat{display:flex;flex-direction:column;gap:16px;min-height:42vh;margin-bottom:18px}
.msg{max-width:80%;padding:14px 18px;border-radius:18px;font-size:1rem;line-height:1.7;animation:fade .4s var(--ease)}
.msg.user{align-self:flex-end;background:var(--indigo);color:#fff;border-bottom-right-radius:6px;white-space:pre-wrap;
  box-shadow:0 8px 20px -12px rgba(45,91,142,.6)}
.msg.bot{align-self:flex-start;background:var(--panel);border:1px solid var(--line);
  border-bottom-left-radius:6px;box-shadow:var(--shadow);max-width:88%}
.msg.bot.thinking{color:var(--ink-faint);font-style:italic;font-family:Lora,Georgia,serif}
.composer{display:flex;gap:10px;align-items:flex-end;background:var(--panel);border:1px solid var(--line);
  border-radius:18px;padding:9px 9px 9px 18px;transition:.3s var(--ease);box-shadow:var(--shadow)}
.composer:focus-within{border-color:var(--indigo-soft);box-shadow:0 0 0 4px rgba(45,91,142,.10),var(--shadow)}
.composer textarea{flex:1;background:none;border:none;color:var(--ink);font-family:Manrope,sans-serif;font-size:1rem;
  resize:none;outline:none;max-height:160px;line-height:1.6}
.composer textarea::placeholder{color:var(--ink-faint)}
#chat-send{width:40px;height:40px;flex:none;border:none;border-radius:50%;background:var(--indigo);color:#fff;
  font-size:1.2rem;cursor:pointer;transition:.25s var(--ease)}
#chat-send:hover{transform:translateY(-1px);background:var(--indigo-soft)}
#chat-send:disabled{opacity:.4;cursor:default;transform:none}
.hint{color:var(--ink-faint);font-size:.84rem;margin-top:14px;text-align:center;line-height:1.6}

/* ---- practice ---- */
.diag-card{display:block;width:100%;text-align:left;
  background:linear-gradient(150deg,var(--wash),var(--panel-soft));
  border:1px solid var(--indigo-dim);border-radius:var(--radius);padding:26px;cursor:pointer;color:var(--ink);
  margin-bottom:34px;transition:.4s var(--ease);box-shadow:var(--shadow)}
.diag-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.diag-eyebrow{color:var(--indigo);font-size:.74rem;text-transform:uppercase;letter-spacing:.14em;font-weight:600}
.diag-title{display:block;font-family:Lora,Georgia,serif;font-size:1.6rem;font-weight:500;margin:8px 0 7px;color:var(--ink)}
.diag-desc{color:var(--ink-soft);font-size:.95rem;line-height:1.6}
.section-label{font-family:Lora,Georgia,serif;font-weight:500;font-size:1.25rem;color:var(--ink);margin-bottom:16px}
.practice-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;align-items:stretch}
.pcard{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;cursor:pointer;
  color:var(--ink);text-align:left;transition:.3s var(--ease);display:flex;flex-direction:column;gap:9px;
  box-shadow:var(--shadow);height:100%}
.pcard:hover{transform:translateY(-3px);border-color:var(--indigo-dim);box-shadow:var(--shadow-lift)}
.pcard .cat{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--indigo);font-weight:600}
.pcard .pt{font-family:Lora,Georgia,serif;font-size:1.22rem;font-weight:500;color:var(--ink);line-height:1.25}
.pcard .pg{color:var(--ink-soft);font-size:.88rem;line-height:1.55;flex:1 0 auto}
.pcard .pcard-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;padding-top:14px;border-top:1px solid var(--line-soft)}
.chip{display:inline-flex;align-items:center;gap:5px;font-size:.78rem;font-weight:500;color:var(--ink-soft);
  background:var(--panel-soft);border:1px solid var(--line-soft);border-radius:999px;padding:4px 10px}
.chip svg{width:13px;height:13px;stroke:var(--indigo-soft);fill:none;stroke-width:1.7;flex:none}

/* ---- runner / wizard / diagnostic ---- */
.back{background:none;border:none;color:var(--ink-soft);cursor:pointer;font-size:.9rem;font-weight:500;
  margin-bottom:20px;transition:.2s;padding:4px 0}
.back:hover{color:var(--indigo)}
.runner{animation:fade .5s var(--ease)}
.w-head{margin-bottom:20px}
.w-head h3{font-family:Lora,Georgia,serif;font-size:clamp(1.6rem,4vw,1.9rem);font-weight:500;margin-bottom:7px;color:var(--ink)}
.w-head .meta{color:var(--ink-faint);font-size:.86rem}
/* интро-врезка: разбавленная тушь, без side-stripe */
.w-intro{background:var(--wash);border:1px solid var(--line-soft);padding:16px 20px;border-radius:12px;
  color:var(--ink-soft);font-size:.95rem;line-height:1.65;margin-bottom:24px}
.w-progress{height:4px;background:var(--line);border-radius:4px;margin-bottom:30px;overflow:hidden}
.w-progress i{display:block;height:100%;background:linear-gradient(90deg,var(--gold-soft),var(--gold));
  box-shadow:0 0 10px rgba(201,168,106,.5);transition:width .4s var(--ease)}
.w-step{text-align:center;padding:14px 4px 4px}
.w-stepno{color:var(--indigo);font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;font-weight:600;margin-bottom:18px}
.w-text{font-family:Lora,Georgia,serif;font-size:clamp(1.35rem,3.5vw,1.6rem);line-height:1.5;font-weight:500;
  max-width:38ch;margin:0 auto 30px;color:var(--ink);text-wrap:pretty}
.timer{font-variant-numeric:tabular-nums;font-size:3rem;font-weight:300;color:var(--indigo);margin:8px 0 22px;letter-spacing:1px}
.w-nav{display:flex;justify-content:center;gap:12px;margin-top:12px}
.btn{border:1px solid var(--line);background:var(--panel);color:var(--ink);padding:11px 26px;border-radius:999px;
  cursor:pointer;font-size:.92rem;font-weight:500;font-family:Manrope,sans-serif;transition:.3s var(--ease)}
.btn:hover{border-color:var(--indigo-dim);background:var(--wash)}
.btn.primary{background:var(--indigo);color:#fff;border-color:var(--indigo);box-shadow:0 8px 18px -10px rgba(45,91,142,.6)}
.btn.primary:hover{transform:translateY(-1px);background:var(--indigo-soft)}
.btn:disabled{opacity:.35;cursor:default}
.w-done{text-align:center;padding:34px 10px}
.w-done .mark{font-size:2.4rem;color:var(--gold-dim);margin-bottom:16px}

/* экран подготовки практики */
.prep{max-width:560px}
.prep-stats{display:flex;gap:10px;margin-bottom:20px}
.prep-stats .chip{font-size:.85rem;padding:6px 13px}
.prep-intro{font-size:1.05rem;line-height:1.7;color:var(--ink);margin-bottom:22px}
.prep-howto{background:var(--wash);border:1px solid var(--line-soft);border-radius:14px;padding:18px 22px;margin-bottom:18px}
.prep-howto-t{font-weight:600;color:var(--indigo);font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.prep-howto ul{margin:0;padding-left:20px;color:var(--ink-soft);font-size:.94rem;line-height:1.6}
.prep-howto li{margin:6px 0}
.prep-caution{background:rgba(201,168,106,.12);border:1px solid var(--gold);border-radius:12px;
  padding:13px 18px;color:var(--gold-dim);font-size:.92rem;margin-bottom:20px}
.voice-toggle{display:flex;align-items:center;gap:10px;cursor:pointer;color:var(--ink-soft);font-size:.95rem;margin-bottom:14px;user-select:none}
.voice-toggle input{width:18px;height:18px;accent-color:var(--indigo);cursor:pointer}
.voice-picker{display:flex;align-items:center;gap:8px;margin-bottom:26px;flex-wrap:wrap}
.voice-picker-l{color:var(--ink-faint);font-size:.88rem;margin-right:2px}
.voice-opt{background:var(--panel-soft);border:1px solid var(--line);color:var(--ink-soft);
  padding:7px 16px;border-radius:999px;font-size:.88rem;font-weight:500;cursor:pointer;transition:.25s var(--ease)}
.voice-opt:hover{color:var(--ink);border-color:var(--indigo-dim)}
.voice-opt.active{background:var(--indigo);color:#fff;border-color:var(--indigo)}
.btn.big{font-size:1.05rem;padding:15px 40px}
.btn.link{background:none;border:none;color:var(--ink-faint);font-size:.86rem;padding:8px;margin-top:20px}
.btn.link:hover{color:var(--indigo);background:none}

/* плеер автопрохождения */
.player{display:flex;justify-content:center;align-items:center;gap:14px;margin-top:8px}
.pbtn{width:50px;height:50px;border-radius:50%;border:1px solid var(--line);background:var(--panel);
  color:var(--indigo);font-size:1.1rem;cursor:pointer;transition:.25s var(--ease);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.pbtn:hover:not(:disabled){border-color:var(--indigo-dim);background:var(--wash);transform:translateY(-2px)}
.pbtn:disabled{opacity:.3;cursor:default}
.pbtn.pause{width:62px;height:62px;background:var(--indigo);color:#fff;border-color:var(--indigo);font-size:1rem;
  box-shadow:0 8px 20px -10px rgba(45,91,142,.6)}
.pbtn.pause:hover{background:var(--indigo-soft);transform:translateY(-2px)}
.pbtn.on{border-color:var(--indigo-dim)}

/* diagnostic */
.q-card{animation:fade .4s var(--ease)}
.q-text{font-family:Lora,Georgia,serif;font-size:clamp(1.3rem,3.4vw,1.5rem);font-weight:500;margin-bottom:22px;line-height:1.4;color:var(--ink)}
.q-opts{display:flex;flex-direction:column;gap:10px}
.q-opt{text-align:left;background:var(--panel);border:1px solid var(--line);color:var(--ink);
  padding:15px 19px;border-radius:12px;cursor:pointer;font-size:.97rem;transition:.25s var(--ease);box-shadow:var(--shadow)}
.q-opt:hover{border-color:var(--indigo);background:var(--wash);transform:translateX(3px)}
.result{text-align:center;animation:fade .5s}
.result h3{font-family:Lora,Georgia,serif;font-size:clamp(1.7rem,4vw,2rem);font-weight:500;color:var(--indigo);margin-bottom:16px}
.result p{color:var(--ink-soft);max-width:58ch;margin:0 auto 26px;line-height:1.7}
.result .recs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}

/* ---- path (маршрут) ---- */
.door-accent{border-color:var(--indigo-dim);background:linear-gradient(150deg,var(--wash),var(--panel))}
.door-accent .door-k{font-size:1.25rem}
.path-progress{color:var(--ink-soft);font-size:.88rem}
.path-progress #path-pct{color:var(--gold-dim);font-weight:700;font-size:1.05rem}
.stage{margin-bottom:40px}
.stage-title{font-family:Lora,Georgia,serif;font-size:1.3rem;font-weight:500;color:var(--ink);
  margin-bottom:18px;display:flex;align-items:center;gap:11px}
.stage-title::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);
  box-shadow:0 0 0 4px rgba(201,168,106,.18)}
.trail{position:relative;padding-left:36px}
.trail::before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--line),var(--line-soft))}
.node{position:relative;margin-bottom:14px;cursor:pointer;display:flex;flex-direction:column;gap:4px;
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 20px;transition:.3s var(--ease);box-shadow:var(--shadow)}
.node:hover{transform:translateX(3px);border-color:var(--indigo-dim);box-shadow:var(--shadow-lift)}
.node::before{content:"";position:absolute;left:-31px;top:20px;width:14px;height:14px;border-radius:50%;
  background:var(--bg);border:2px solid var(--ink-faint);transition:.3s;z-index:1}
.node.done::before{background:var(--gold);border-color:var(--gold);box-shadow:0 0 0 4px rgba(201,168,106,.22)}
.node.current::before{border-color:var(--indigo);animation:pulse 2.6s var(--ease) infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(45,91,142,.45)}50%{box-shadow:0 0 0 7px rgba(45,91,142,0)}}
.node-t{font-family:Lora,Georgia,serif;font-size:1.2rem;font-weight:500;display:flex;align-items:center;gap:8px;color:var(--ink)}
.node-check{color:var(--gold-dim);font-size:.95rem}
.node-s{color:var(--ink-soft);font-size:.88rem;line-height:1.5}
.node-tags{display:flex;gap:6px;margin-top:6px}
.node-tag{font-size:.68rem;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-faint);font-weight:600;
  border:1px solid var(--line);border-radius:6px;padding:3px 8px}
.node-tag.ok{color:var(--indigo);border-color:var(--indigo-dim);background:var(--wash)}

/* node runner: табы Читать/Тест/Практика */
.node-tabs{display:flex;gap:5px;margin:8px 0 26px}
.node-tab2{background:var(--panel-soft);border:1px solid var(--line);color:var(--ink-soft);padding:8px 16px;
  border-radius:999px;font-size:.87rem;font-weight:500;cursor:pointer;transition:.3s var(--ease)}
.node-tab2:hover{color:var(--ink);border-color:var(--indigo-dim)}
.node-tab2.active{background:var(--indigo);color:#fff;border-color:var(--indigo);font-weight:600}
.node-tab2 .mini{font-size:.8rem}

/* ============================================================
   ФОРМАТИРОВАНИЕ ДЛИННОГО ТЕКСТА — единый ритм для уроков,
   ответов наставника и RAG. Узкая колонка, крупный интерлиньяж.
   ============================================================ */
.lesson{max-width:var(--read);line-height:1.8;font-size:1.06rem;color:var(--ink);animation:fade .4s}
.lesson h2,.answer h2,.msg.bot h2{
  font-family:Lora,Georgia,serif;color:var(--ink);font-weight:600;
  font-size:1.5rem;line-height:1.3;margin:2em 0 .6em;letter-spacing:.1px;text-wrap:balance}
.lesson h2:first-child,.answer h2:first-child,.msg.bot h2:first-child{margin-top:0}
.lesson h3,.answer h3,.msg.bot h3,.msg h3{
  font-family:Lora,Georgia,serif;color:var(--indigo);font-weight:600;
  font-size:1.18rem;line-height:1.35;margin:1.6em 0 .5em;text-wrap:balance}
.lesson h4,.answer h4,.msg.bot h4,.msg h4{
  font-family:Manrope,sans-serif;font-size:1rem;font-weight:700;color:var(--ink);
  letter-spacing:.02em;margin:1.4em 0 .4em}
.lesson p{margin:0 0 1.05em}
.lesson ul,.lesson ol{margin:1em 0 1.3em;padding-left:1.4em}
.lesson li{margin:.5em 0;padding-left:.25em}
.lesson li::marker{color:var(--indigo-soft)}
.lesson table,.answer table,.msg.bot table{width:100%;border-collapse:collapse;margin:1.2em 0 1.4em;font-size:.96rem}
.lesson th,.answer th,.msg.bot th{text-align:left;font-weight:600;color:var(--indigo);background:var(--wash);
  padding:10px 14px;border-bottom:2px solid var(--indigo-dim)}
.lesson td,.answer td,.msg.bot td{padding:9px 14px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--ink)}
.lesson tbody tr:last-child td{border-bottom:none}
.lesson tbody tr:nth-child(even),.answer tbody tr:nth-child(even),.msg.bot tbody tr:nth-child(even){background:var(--panel-soft)}
.node-nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:28px;padding-top:22px;border-top:1px solid var(--line-soft)}
.step-ok{color:var(--indigo-soft);font-weight:600;font-size:.92rem}
.quiz-result .node-nav{justify-content:center;border-top:none;margin-top:22px}
.lesson strong,.lesson b{color:var(--ink);font-weight:700}
.lesson em{font-style:italic}
/* термин-определение: «Ребёнок (0–7 лет).» — жирный термин в начале абзаца
   читается выделенно через цвет индиго (рендерится как <strong> в начале <p>) */
.lesson p > strong:first-child{color:var(--indigo);font-weight:700}

/* ЦИТАТЫ УЧИТЕЛЯ — ключевой акцент. Тушь-врезка: полупрозрачная индиго-полоса,
   светло-голубая заливка, Lora курсивом, крупнее, с воздухом. */
.lesson blockquote,.answer blockquote,.msg.bot blockquote{
  position:relative;margin:1.7em 0;padding:1.1em 1.4em 1.1em 2.6em;
  background:var(--wash);border:1px solid var(--line-soft);border-radius:14px;
  box-shadow:inset 3px 0 0 var(--indigo), var(--shadow);
  font-family:Lora,Georgia,serif;font-style:italic;font-size:1.15rem;line-height:1.65;
  color:var(--ink);text-wrap:pretty}
.lesson blockquote::before,.answer blockquote::before,.msg.bot blockquote::before{
  content:"\201C";position:absolute;left:.42em;top:.06em;
  font-family:Lora,Georgia,serif;font-style:normal;font-size:2.6em;line-height:1;
  color:var(--indigo-dim);opacity:.85}
.lesson blockquote p,.answer blockquote p,.msg.bot blockquote p{margin:0 0 .5em}
.lesson blockquote p:last-child,.answer blockquote p:last-child,.msg.bot blockquote p:last-child{margin-bottom:0}

.done-btn-wrap{margin-top:30px;text-align:center}
/* quiz */
.quiz-q{animation:fade .4s}
.quiz-progress{color:var(--indigo);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;font-weight:600;margin-bottom:14px}
.quiz-text{font-family:Lora,Georgia,serif;font-size:clamp(1.25rem,3.2vw,1.4rem);font-weight:500;margin-bottom:20px;line-height:1.4;color:var(--ink)}
.quiz-opts{display:flex;flex-direction:column;gap:10px}
.quiz-opt{text-align:left;background:var(--panel);border:1px solid var(--line);color:var(--ink);
  padding:14px 18px;border-radius:12px;cursor:pointer;font-size:.96rem;transition:.2s var(--ease);box-shadow:var(--shadow)}
.quiz-opt:hover:not(:disabled){border-color:var(--indigo);transform:translateX(3px);background:var(--wash)}
.quiz-opt:disabled{cursor:default}
.quiz-opt.correct{border-color:#3F8F5E;background:#E6F3EA;color:#1B4D30}
.quiz-opt.wrong{border-color:#C0556A;background:#FBE9EC;color:#7A2436}
.quiz-explain{margin-top:16px;padding:14px 18px;background:var(--wash);border:1px solid var(--line-soft);
  border-radius:12px;color:var(--ink-soft);font-size:.93rem;line-height:1.65;animation:fade .3s}
.quiz-next{margin-top:20px;text-align:center}
.quiz-result{text-align:center;padding:24px 0;animation:fade .4s}
.quiz-result .score{font-family:Lora,Georgia,serif;font-size:2.2rem;color:var(--indigo);font-weight:600}
.node-practice-cta{text-align:center;padding:16px 0}
.node-practice-cta p{color:var(--ink-soft);margin-bottom:18px}

/* ---- search ---- */
.search-form{display:flex;gap:10px;margin-bottom:28px}
.search-form input{flex:1;background:var(--panel);border:1px solid var(--line);color:var(--ink);
  padding:15px 19px;border-radius:14px;font-family:Manrope,sans-serif;font-size:1rem;outline:none;transition:.3s var(--ease);box-shadow:var(--shadow)}
.search-form input::placeholder{color:var(--ink-faint)}
.search-form input:focus{border-color:var(--indigo-soft);box-shadow:0 0 0 4px rgba(45,91,142,.10),var(--shadow)}
.search-form button{background:var(--indigo);color:#fff;border:none;padding:0 28px;border-radius:14px;
  font-weight:600;cursor:pointer;font-size:.96rem;transition:.25s var(--ease);box-shadow:0 8px 18px -10px rgba(45,91,142,.6)}
.search-form button:hover{transform:translateY(-1px);background:var(--indigo-soft)}
/* RAG-ответ: та же читаемая колонка и форматирование, что у уроков */
.answer{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 30px;
  max-width:var(--read);line-height:1.8;font-size:1.05rem;color:var(--ink);margin-bottom:28px;animation:fade .5s;box-shadow:var(--shadow)}
.answer p,.msg p{margin:0 0 1em}
.answer p:last-child,.msg p:last-child{margin-bottom:0}
.answer ul,.msg ul,.answer ol,.msg ol{margin:.8em 0 1.2em;padding-left:1.4em}
.answer li,.msg li{margin:.45em 0;padding-left:.25em}
.answer li::marker,.msg li::marker{color:var(--indigo-soft)}
.answer strong,.msg strong{color:var(--ink);font-weight:700}
.answer p > strong:first-child,.msg.bot p > strong:first-child{color:var(--indigo)}
.msg.bot em,.answer em{font-style:italic}
.sources-label{color:var(--ink-faint);font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;font-weight:600;margin-bottom:14px}
.source{display:block;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:15px 18px;
  margin-bottom:10px;text-decoration:none;color:var(--ink);transition:.25s var(--ease);box-shadow:var(--shadow)}
.source:hover{border-color:var(--indigo-dim);transform:translateX(3px);box-shadow:var(--shadow-lift)}
.source .s-top{display:flex;justify-content:space-between;gap:10px;font-size:.79rem;color:var(--indigo);font-weight:600;margin-bottom:7px}
.source .s-snip{color:var(--ink-soft);font-size:.9rem;line-height:1.6}
.loading{color:var(--ink-faint);font-style:italic;font-family:Lora,Georgia,serif;text-align:center;padding:34px}
.dots::after{content:"";animation:dots 1.4s steps(4,end) infinite}
@keyframes dots{0%{content:""}25%{content:"·"}50%{content:"··"}75%{content:"···"}}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}
@media(max-width:560px){
  .topbar{padding:13px 12px;gap:8px}
  .brand-name{font-size:1.25rem}
  .modes{gap:1px}.mode-tab{padding:6px 9px;font-size:.78rem}
  #app{padding:28px 16px 80px}.msg{max-width:92%}.msg.bot{max-width:96%}
  .lesson blockquote,.answer blockquote,.msg.bot blockquote{padding-left:2.2em}
  .answer{padding:22px 20px}
}
@media(max-width:380px){
  .brand-name{font-size:1.1rem}.brand{gap:8px}
  .mode-tab{padding:6px 7px;font-size:.74rem;letter-spacing:-.01em}
}