/* Холст курса: доска в точку, рамки разделов, плитки с живыми компонентами */
html,body{margin:0;background:#edf2f9}
body{background:#edf2f9 radial-gradient(circle,#c8d5ea 1px,transparent 1.3px) 0 0/22px 22px}
.hl.aor{background:transparent;min-height:100vh;font-size:15px}
.hl a{color:inherit}

/* шапка */
.hl-top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hl-top-in{max-width:1480px;margin:0 auto;display:flex;align-items:center;gap:18px;padding:10px 28px}
.hl-logo{height:30px;width:auto}
.hl-name{display:flex;flex-direction:column;line-height:1.2;border-left:1px solid var(--line);padding-left:14px}
.hl-name b{font-size:14px;color:var(--ink)}
.hl-name span{font-size:12px;color:var(--muted)}
.hl-nav{display:flex;gap:2px;margin-left:auto}
.hl-nav a{font-size:13px;font-weight:600;color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:8px}
.hl-nav a:hover{background:var(--brand-50);color:var(--ink)}
.hl-links{display:flex;gap:8px}
.hl-links .btn{text-decoration:none}
.hl-links .btn.primary{color:#fff}

.hl-main{max-width:1480px;margin:0 auto;padding:0 28px 60px}

/* устройство курса */
.hl-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:40px;padding:44px 0 10px;align-items:start}
.hero-l h1{font-size:clamp(34px,3.4vw,50px);font-weight:800;letter-spacing:-.03em;margin-top:12px;text-wrap:balance}
.hero-l .lead{font-size:17px;color:var(--muted);margin-top:14px;max-width:62ch}
.hero-counts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:22px}
.hero-counts div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;opacity:0;animation:beatIn .5s forwards}
.hero-counts b{display:block;font-size:30px;font-weight:800;color:var(--ink);line-height:1.05}
.hero-counts span{font-size:13px;color:var(--muted)}
.hero-r{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px 20px;box-shadow:var(--shadow);container:hero/inline-size;min-width:0}
/* карточки слоя урока: 3 в ряд, на широкой карточке 6, на телефоне 2; шеврон — в зазоре между соседями по ряду */
.flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px 16px;margin-top:10px}
.flow-step{position:relative;min-width:0;border-radius:12px;padding:9px 11px;border:1.5px solid var(--line);background:#fff;display:grid;gap:3px;align-content:start;transition:transform .35s,box-shadow .35s,border-color .35s}
.flow-step::after{content:'';position:absolute;right:-12px;top:50%;width:6px;height:6px;margin-top:-4px;border-top:2px solid var(--brand-200);border-right:2px solid var(--brand-200);transform:rotate(45deg)}
.flow-step:nth-child(3n)::after{display:none}
.fs-h{display:flex;align-items:center;gap:6px;min-width:0}
.flow-step svg{width:17px;height:17px;flex:none;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.flow-step b{font-size:13px;color:inherit;min-width:0}
.flow-step .fs-p{font-size:11.5px;color:var(--muted);line-height:1.25}
.flow-step.on{transform:translateY(-3px);box-shadow:0 8px 20px rgba(75,110,185,.22);border-color:var(--brand)}
.k-scene{color:var(--brand-900)}
.k-explain{color:var(--brand-700)}
.k-video{color:#2f7fc4}
.k-practice{color:var(--sky)}
.k-check{color:var(--brand)}
.k-list{color:var(--brand-900)}
.flow-step.k-scene{background:var(--brand-900);color:#fff;border-color:var(--brand-900)}
.flow-step.k-scene .fs-p{color:#b4d9f6}
/* матрица уроков: у каждого слоя своя колонка, пустая клетка — точка */
.lmap{margin-top:16px;border-top:1px solid var(--line2)}
.lmap-row{display:grid;grid-template-columns:30px minmax(0,1fr) auto;gap:6px 12px;align-items:center;padding:9px 0;border-bottom:1px solid var(--line2)}
.lmap-n{width:28px;height:28px;border-radius:8px;background:var(--brand);color:#fff;font-weight:800;font-size:13px;display:grid;place-items:center}
.lmap-row b{font-size:14px;color:var(--ink);font-weight:700;min-width:0}
.lmap-l{--s:26px;display:grid;grid-template-columns:repeat(6,var(--s));gap:4px;justify-content:end}
.lmap-l i{width:var(--s);height:var(--s);border-radius:7px;display:grid;place-items:center;background:var(--brand-50);font-style:normal}
.lmap-l i.k-scene{background:var(--brand-900)}
.lmap-l i.k-scene svg{stroke:#fff}
.lmap-l i.off{background:transparent}
.lmap-l i.off::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--brand-200)}
.lmap-l i.cl{background:#fff;border:1.5px solid var(--line);font-size:11px;font-weight:800;color:var(--brand-900)}
.lmap-l svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.lmap-row.fin .lmap-l{display:flex}
.lmap-l em{font-style:normal;font-size:12px;font-weight:800;color:var(--amber);background:var(--amber-50);border-radius:7px;padding:4px 8px;white-space:nowrap}
.lmap-row.fin .lmap-n{background:var(--amber)}
@container hero (min-width: 860px){
  .flow{grid-template-columns:repeat(6,minmax(0,1fr))}
  .flow-step:nth-child(3n)::after{display:block}
  .flow-step:last-child::after{display:none}
}
@container hero (max-width: 479px){
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-step:nth-child(3n)::after{display:block}
  .flow-step:nth-child(2n)::after{display:none}
  .lmap-row{grid-template-columns:30px minmax(0,1fr)}
  .lmap-row .lmap-l{grid-column:2;justify-content:start;--s:24px}
  .lmap-n{align-self:start}
}
.hero-note{margin-top:12px;font-size:13px;color:var(--muted)}

/* рамки разделов */
.frame{margin-top:64px;scroll-margin-top:70px}
.frame-h{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:16px;align-items:baseline;margin-bottom:16px}
.frame-k{grid-row:span 2;align-self:start;margin-top:6px;font-size:11.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;border-radius:8px;padding:6px 12px;background:#fff;border:1.5px solid currentColor}
.frame-k.k-scene{background:var(--brand-900);color:#fff;border-color:var(--brand-900)}
.frame-k.k-final{color:var(--amber)}
.frame-h h2{font-size:30px;font-weight:800;letter-spacing:-.02em}
.frame-h p{grid-column:2;color:var(--muted);font-size:15px;max-width:80ch;margin-top:4px}
.frame-b{background:rgba(255,255,255,.5);border:1px solid rgba(183,200,230,.7);border-radius:24px;padding:18px}

/* плитки */
.tile{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:0 1px 2px rgba(21,32,59,.04),0 10px 30px rgba(21,32,59,.05);position:relative;min-width:0}
.tile-tag{display:inline-flex;font-size:10.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.wide-tile{grid-column:span 2}

.scenes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.scene-tile .scene{margin-top:0}
.scene-tile .scene img{animation:kenburns 14s ease-in-out infinite alternate}
.scene-tile .say{margin-top:12px}
.scene-tile .say .txt{font-size:14.5px}
.scene-tile .doc-mini{margin-top:10px}
.scene-tile .doc-q{font-size:16px}
.scene-tile .tl-night{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.scene-tile .tl-night>img{min-height:260px}
.scene-tile .beat{animation:none}

.lesson-row{display:grid;grid-template-columns:250px minmax(0,1fr);gap:18px;padding:18px 0;border-top:1px dashed var(--brand-200)}
.lesson-row:first-child{border-top:0;padding-top:4px}
.lr-h{display:grid;grid-template-columns:40px minmax(0,1fr);gap:12px;align-content:start;position:sticky;top:76px;align-self:start}
.lr-n{width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;font-weight:800;font-size:18px;display:grid;place-items:center}
.lr-h b{font-size:17px;color:var(--ink);line-height:1.25;display:block}
.lr-h p{font-size:13px;color:var(--muted);margin-top:4px}
.lr-tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;align-items:start}
.explain-tile .lesson-card{border:0;box-shadow:none;padding:0}
.explain-tile .lesson-card>h3{font-size:19px}
.explain-tile .lc-text p,.explain-tile .depth-body{font-size:14.5px}
.explain-tile .beat{animation:none}
.video-tile .video{border-radius:12px}
.video-tile .vd-foot{grid-template-columns:1fr;gap:8px;padding:10px 4px 2px}
.video-tile .vd-note{border-left:0;padding-left:0}

.practice{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.pt-head h3{font-size:18px;font-weight:800}
.pt-head p{font-size:14px;color:var(--muted);margin-top:4px}
.pt-head p b{color:var(--ink)}
.pt-steps{margin:8px 0 0;padding:0;list-style:none;counter-reset:s;display:grid;gap:4px}
.pt-steps li{counter-increment:s;display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px;font-size:13px;color:var(--text)}
.pt-steps li::before{content:counter(s);width:20px;height:20px;border-radius:50%;background:var(--brand-50);color:var(--brand-700);font-size:11px;font-weight:800;display:grid;place-items:center}
.pt-stage{margin-top:12px}
.stage{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--bg);box-shadow:inset 0 0 0 4px #fff}
.st-scroll{overflow:hidden;position:relative}
.stage .aor.embedded{background:var(--bg);min-height:100%}
.stage .aor-main{padding:14px 14px 90px;max-width:none}
.stage>.aor-layer{position:absolute;inset:0;z-index:6;pointer-events:none;background:transparent}
.stage::after{content:"";position:absolute;left:0;right:0;bottom:0;height:40px;background:linear-gradient(transparent,var(--bg));pointer-events:none}

.ask-panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}
.ask-hd{grid-template-columns:44px minmax(0,1fr)!important;align-items:center}
.ask-hd .ava{width:44px;height:44px}
.ask-hd b{display:block;font-size:15px;color:var(--ink)}
.ask-hd span{font-size:12px;color:var(--muted)}

.final{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:16px;align-items:start}
.final .wide-tile{grid-column:auto}
.final-side{display:grid;gap:16px}
.cl-mini{display:grid;gap:8px}
.clm{display:grid;grid-template-columns:28px minmax(0,1fr);gap:10px;align-items:center}
.clm i{font-style:normal;width:28px;height:28px;border-radius:8px;background:var(--brand-900);color:#fff;font-weight:800;font-size:13px;display:grid;place-items:center}
.clm b{display:block;font-size:14px;color:var(--ink)}
.clm span{font-size:11.5px;color:var(--faint)}
.moodle-tile{border-top:4px solid var(--amber)}
.moodle-tile dl{display:grid;grid-template-columns:auto minmax(0,1fr);gap:6px 14px;margin:0}
.moodle-tile dt{font-weight:800;color:var(--ink);font-size:14px}
.moodle-tile dd{margin:0;color:var(--muted);font-size:14px}
.moodle-tile p{font-size:13px;color:var(--muted);margin-top:10px}

.hl-foot{margin-top:56px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--faint)}

@media (max-width: 1180px){
  .hl-nav{display:none}
  .hl-hero{grid-template-columns:1fr}
  .scenes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lesson-row{grid-template-columns:1fr}
  .lr-h{position:static}
  .final{grid-template-columns:1fr}
}
@media (max-width: 860px){
  .hl-top-in{padding:8px 14px;gap:10px}
  .hl-name span{display:none}
  .hl-main{padding:0 12px 40px}
  .hero-counts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scenes,.lr-tiles,.practice,.checks{grid-template-columns:1fr}
  .wide-tile{grid-column:auto}
  .scene-tile .tl-night{grid-template-columns:1fr}
  .frame-h{grid-template-columns:1fr}
  .frame-k{grid-row:auto;justify-self:start}
  .frame-h p{grid-column:1}
  .frame-h h2{font-size:24px}
  .frame-b{padding:10px;border-radius:18px}
}
@media (prefers-reduced-motion: reduce){.scene-tile .scene img{animation:none}}
@media (max-width: 560px){
  .hl-name{display:none}
  .hl-links .btn:not(.primary){display:none}
  .hl-links{margin-left:auto}
}