/* POISK Academia — курс «Мастерская: основы». Основа — стили курсов «Как устроен автомобиль» и «Приёмщик сервиса», тренажёры в конце файла.
   Тёмная тема в стиле атласа; без внешних шрифтов и ресурсов. */
:root{
  --bg:#070c17;--panel:#0f1b2c;--panel-2:#0b1322;--well:#08101d;--line:#59779945;--line-2:#6685a65c;
  --fg:#e7f0fb;--muted:#9aadc2;--dim:#7189a3;--accent:#b2cee7;--accent-2:#aad4f3;--ink:#101f30;
  --hot:#ffb26b;--ok:#8fe3b0;--ok-bg:#12301f;--warn:#ffd36b;--warn-bg:#33290f;--bad:#ff8a7a;--bad-bg:#3a1714;
  --sans:Inter,"Segoe UI",system-ui,-apple-system,Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--sans);background-image:radial-gradient(ellipse at 80% 0,#21355670,transparent 55%);-webkit-font-smoothing:antialiased}
a{color:var(--accent-2)}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid #b6dfff;outline-offset:3px}
[hidden]{display:none!important}

/* site chrome (same look as the atlas) */
.site-header,.site-main,.site-footer{max-width:1500px;margin:auto}
.site-header{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-block:23px;padding-left:max(4%,16px,env(safe-area-inset-left,0px));padding-right:max(4%,16px,env(safe-area-inset-right,0px));border-bottom:1px solid #53698533}
.site-header>div{font:10px var(--mono);letter-spacing:2px;color:#7992ac}
.brand{color:#fff;text-decoration:none;letter-spacing:2px;font-weight:750;font-size:19px;white-space:nowrap}
.brand span{font-size:11px;color:#a8c8e9;margin-left:8px}
.site-main{padding-left:max(4%,16px,env(safe-area-inset-left,0px));padding-right:max(4%,16px,env(safe-area-inset-right,0px));padding-block:0 60px}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;font-size:11px;color:#8ea6bd}
.breadcrumbs a{color:#bdd1e5;text-decoration:none}
.site-footer{padding-block:24px;padding-left:max(4%,16px,env(safe-area-inset-left,0px));padding-right:max(4%,16px,env(safe-area-inset-right,0px));border-top:1px solid #59779933;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;color:#718ba6;font-size:11px}
.site-footer a{color:inherit}
.embedded .site-header,.embedded .site-footer,.embedded .breadcrumbs,.embedded .seo-content{display:none}

/* course */
.eyebrow{color:#9ab5d0;font:10.5px var(--mono);letter-spacing:2px;text-transform:uppercase}
.c-intro{padding:14px 0 22px;display:grid;gap:12px}
.c-intro h1{font-weight:450;font-size:clamp(30px,3.5vw,44px);letter-spacing:-1.4px;margin:0;text-wrap:balance}
.c-intro p{color:var(--muted);line-height:1.65;max-width:860px;margin:0;font-size:15px}
.c-prog{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--dim)}
.c-bar{width:180px;height:5px;border-radius:9px;background:#1b2b42;overflow:hidden}
.c-bar i{display:block;height:100%;background:var(--accent);border-radius:9px;transition:width .4s}

.c-shell{display:grid;grid-template-columns:270px minmax(0,1fr);gap:28px;align-items:start}
.c-nav{position:sticky;top:16px;display:flex;flex-direction:column;gap:4px;padding:14px;background:linear-gradient(145deg,#15253a,#0c1421);border:1px solid var(--line);border-radius:22px;max-height:calc(100vh - 32px);overflow:auto}
.c-nav a{display:grid;grid-template-columns:26px minmax(0,1fr) 14px;gap:8px;align-items:start;padding:9px 10px;border-radius:10px;text-decoration:none;color:#c9dbec;font-size:13px;line-height:1.35}
.c-nav a:hover{background:#182a40}
.c-nav a[aria-current="page"]{background:#26435a;color:#fff}
.c-nav .n{font:11px var(--mono);color:#7aabd2;padding-top:1px}
.c-nav .st{width:12px;height:12px;border-radius:50%;border:1.5px solid #4d6886;margin-top:3px}
.c-nav .st.done{background:var(--ok);border-color:var(--ok)}
.c-nav hr{border:0;border-top:1px solid var(--line);margin:6px 4px;width:calc(100% - 8px)}
.c-select{display:none}
.c-select select{width:100%;padding:10px;border:1px solid var(--line-2);background:#12243a;color:#d8e8f6;border-radius:10px;font-size:14px}

.c-page{min-width:0;max-width:820px;display:flex;flex-direction:column;gap:20px}
.c-page h1{font-weight:450;font-size:clamp(26px,3vw,36px);letter-spacing:-1px;margin:0;text-wrap:balance;line-height:1.2}
.c-page h2{font-weight:450;font-size:23px;letter-spacing:-.4px;margin:16px 0 0;text-wrap:balance}
.c-page h3{font-size:16px;font-weight:550;margin:0}
.c-page p{margin:0;line-height:1.75;color:#b9cde0;font-size:15.5px;max-width:70ch}
.c-page p b,.c-page li b{color:var(--fg);font-weight:600}
.c-page ul,.c-page ol{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:7px;color:#b9cde0;line-height:1.65;font-size:15px;max-width:70ch}
.lead{font-size:17px!important;color:#afc7db!important}
code,.mono{font-family:var(--mono)}
code{font-size:.88em;background:#14243a;padding:1px 6px;border-radius:5px;color:#d6e7f6}

.key{padding:16px 20px;border-left:3px solid var(--hot);border-radius:0 13px 13px 0;background:#1d2532;display:flex;flex-direction:column;gap:8px}
.key-t{font:10.5px var(--mono);letter-spacing:2px;text-transform:uppercase;color:var(--hot)}
.ok-code,.bad-code{font-family:var(--mono);font-size:13.5px;padding:2px 7px;border-radius:6px;white-space:nowrap}
.ok-code{background:var(--ok-bg);color:var(--ok)}
.bad-code{background:var(--bad-bg);color:var(--bad);text-decoration:line-through}

.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--panel-2)}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid #59779930;vertical-align:top;line-height:1.55}
th{font:10px var(--mono);letter-spacing:1.5px;text-transform:uppercase;color:var(--dim);font-weight:400;background:#0e192a}
td{color:#c3d6e8}
tr:last-child td{border-bottom:0}
@media (max-width:560px){
  table.stack thead{display:none}
  table.stack tr{display:block;padding:8px 0;border-bottom:1px solid #59779930}
  table.stack tr:last-child{border-bottom:0}
  table.stack td{display:block;border:0;padding:3px 14px}
  table.stack td::before{content:attr(data-l);display:block;font:9.5px var(--mono);letter-spacing:1.4px;text-transform:uppercase;color:var(--dim)}
}
.steps{list-style:none;padding:0!important;counter-reset:s;gap:10px!important}
.steps li{counter-increment:s;display:grid;grid-template-columns:30px 1fr;gap:12px;align-items:start}
.steps li::before{content:counter(s,decimal-leading-zero);font:11px var(--mono);color:#7aabd2;padding-top:4px}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px}
.fact{padding:13px 14px;background:#0a1626;border-radius:10px;display:flex;flex-direction:column;gap:4px;font-size:14px;color:#cfe0ef;min-width:0;line-height:1.5}
.fact span{font:9.5px var(--mono);letter-spacing:1.4px;text-transform:uppercase;color:var(--dim)}

/* cards: practice / animation */
.card{border:1px solid var(--line);border-radius:18px;background:var(--panel);overflow:hidden}
.card-h{display:flex;gap:12px;align-items:baseline;flex-wrap:wrap;padding:14px 18px;border-bottom:1px solid #59779930;background:#0d1828}
.card-h .tag{font:10px var(--mono);letter-spacing:2px;text-transform:uppercase;color:var(--accent-2)}
.card-h .tag.anim{color:var(--hot)}
.card-h h3{font-size:15.5px;font-weight:550}
.card-b{padding:16px 18px;display:flex;flex-direction:column;gap:14px}
.card-b>p{color:var(--muted);font-size:14.5px}
.stage{border-radius:14px;background:radial-gradient(ellipse at 50% 60%,#1d2d45,#0a1321 78%);border:1px solid #59779930;overflow:hidden}
.stage svg{display:block;width:100%;height:auto}
.cap{font-size:13.5px;color:#b4d4e8;line-height:1.6}

.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line-2);background:#182a40;color:#d2e6fa;border-radius:9px;padding:9px 13px;font-size:13px;cursor:pointer;text-decoration:none}
.btn:hover{background:#264765;border-color:#9bbede}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--ink);font-weight:600}
.btn.primary:hover{background:#c8def0}
.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.fb{border-radius:10px;padding:10px 13px;font-size:14px;line-height:1.55}
.fb.ok{background:var(--ok-bg);color:var(--ok)}
.fb.bad{background:var(--bad-bg);color:var(--bad)}
.fb.warn{background:var(--warn-bg);color:var(--warn)}
.fb .why{display:block;color:#d9e6f2;margin-top:3px}
.fb ul{margin-top:6px}
.fb li{color:#d9e6f2}

input[type=text],input[type=number],select{font:inherit;font-size:14.5px;color:var(--fg);background:var(--well);border:1px solid var(--line-2);border-radius:9px;padding:9px 11px;min-width:0}
input[type=range]{width:100%;accent-color:#8abddc}
label.fld{display:flex;flex-direction:column;gap:5px;font-size:12px;color:var(--dim)}
input.vin{font-family:var(--mono);font-size:18px;letter-spacing:.08em;width:100%;text-transform:uppercase}

/* VIN strip */
.vin-strip{display:flex;flex-wrap:wrap;gap:3px;font-family:var(--mono)}
.vin-strip .c{width:31px;text-align:center;padding:7px 0 4px;border-radius:6px;background:#14233a;font-size:17px;font-weight:600;display:flex;flex-direction:column;line-height:1.15;color:#dbe9f6;transition:background .25s,color .25s,transform .25s}
.vin-strip .c small{font-size:9px;color:var(--dim);font-weight:400}
.vin-strip .c.wmi{background:#203852}
.vin-strip .c.yr{background:#3a2c18;color:var(--hot)}
.vin-strip .c.err{background:var(--bad-bg);color:var(--bad);outline:1.5px solid var(--bad)}
.vin-strip .c.lit{background:var(--accent);color:var(--ink);transform:translateY(-3px)}
.vin-strip .c.lit small{color:var(--ink)}
.vin-strip .c.same{background:#1f3a2c;color:var(--ok)}
.legend{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;font-size:13.5px;color:#b4c8db;line-height:1.5}
.legend div{display:flex;flex-direction:column;gap:2px;padding:8px 10px;border-radius:9px;transition:background .25s}
.legend div.on{background:#1b3048}
.legend b{font:11px var(--mono);color:var(--accent-2);font-weight:400}

/* lists for practice */
.items{display:flex;flex-direction:column;gap:8px}
.item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center;padding:10px 12px;border:1px solid #59779938;border-radius:10px;background:var(--well);font-size:14.5px;color:#d4e3f0}
.item.ok{border-color:#8fe3b088;background:var(--ok-bg)}
.item.bad{border-color:#ff8a7a88;background:var(--bad-bg)}
.item .why{grid-column:1/-1;font-size:13px;color:#d9e6f2}
.seg{display:flex;flex-wrap:wrap;gap:4px;justify-content:flex-end}
.seg button{border:1px solid var(--line-2);background:#14243a;color:#cfe0ef;padding:6px 10px;border-radius:7px;cursor:pointer;font-size:12.5px}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--ink);border-color:var(--accent)}
@media (max-width:640px){.item{grid-template-columns:1fr}.seg{justify-content:flex-start}}
.pick{display:flex;flex-direction:column;gap:6px}
.pick label{display:grid;grid-template-columns:22px 1fr;gap:8px;padding:10px 12px;border:1px solid #59779938;border-radius:10px;cursor:pointer;background:var(--well);align-items:start;font-size:14.5px;color:#d4e3f0}
.pick label.ok{border-color:#8fe3b088;background:var(--ok-bg)}
.pick label.bad{border-color:#ff8a7a88;background:var(--bad-bg)}
.pick label.warn{border-color:#ffd36b88;background:var(--warn-bg)}
.pick input{width:17px;height:17px;margin:2px 0 0;accent-color:#8abddc}
.pick .why{grid-column:2;font-size:13px;color:#d9e6f2}
.bubble{background:#1a2a40;border-radius:14px 14px 14px 3px;padding:10px 14px;max-width:560px;font-size:14.5px;color:#e3eef8}
.bubble .who{display:block;font:9.5px var(--mono);letter-spacing:1.5px;text-transform:uppercase;color:var(--dim);margin-bottom:3px}
.opts{display:flex;flex-direction:column;gap:6px}
.opt{text-align:left;border:1px solid #59779945;background:var(--well);color:#d8e7f4;border-radius:10px;padding:10px 13px;cursor:pointer;font-size:14.5px;line-height:1.5}
.opt:hover:not([disabled]){border-color:#9bbede;background:#13233a}
.opt.ok{border-color:#8fe3b0aa;background:var(--ok-bg)}
.opt.bad{border-color:#ff8a7aaa;background:var(--bad-bg)}
.opt.warn{border-color:#ffd36baa;background:var(--warn-bg)}
.opt[disabled]{cursor:default}
.counter{font:11px var(--mono);color:var(--dim)}
.q{display:flex;flex-direction:column;gap:8px}
.q-t{font-weight:550;font-size:15px;color:var(--fg);line-height:1.5}
.quiz{display:flex;flex-direction:column;gap:20px}
.score{font-size:26px;font-weight:600;font-family:var(--mono)}
.quiz-res{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

.tree{display:grid;gap:8px}
.tree-row{display:grid;grid-template-columns:140px 1fr;gap:10px;align-items:start}
.tree-root{font-size:13px;font-weight:600;padding:10px 12px;border-radius:9px;background:#26435a;color:#fff}
.tree-kids{display:flex;flex-wrap:wrap;gap:6px}
.tree-kids span{font-size:13px;padding:7px 10px;border-radius:8px;background:#14243a;color:#c9dbec}
@media (max-width:520px){.tree-row{grid-template-columns:1fr}}

/* links to labs and shop */
.go{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.go a{display:flex;flex-direction:column;gap:3px;padding:14px 16px;border:1px solid #678cac41;border-radius:12px;background:#112136;color:#d6e6f4;text-decoration:none;font-size:14px}
.go a:hover{border-color:#91b5d0}
.go a small{color:var(--dim);font-size:12px}
.go a .k{font:10px var(--mono);letter-spacing:1.6px;text-transform:uppercase;color:#7aabd2}
.go a.shop .k{color:var(--hot)}

/* home */
.mods{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.mod{display:flex;flex-direction:column;gap:8px;padding:20px;background:linear-gradient(130deg,#14263b,#0d1828);border:1px solid #6283a341;border-radius:16px;text-decoration:none;color:#e4effa;transition:border-color .15s}
.mod:hover{border-color:#91b5d0}
.mod .num{font:11px var(--mono);color:#7aabd2}
.mod b{font-size:16px;font-weight:550;line-height:1.35}
.mod small{color:#94abc2;line-height:1.55;font-size:13px}
.pill{align-self:flex-start;margin-top:auto;font:10px var(--mono);letter-spacing:1px;padding:4px 9px;border-radius:99px;background:#14243a;color:var(--dim)}
.pill.done{background:var(--ok-bg);color:var(--ok)}
.pagenav{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid #56749038;padding-top:20px}

.letter{white-space:pre-wrap;font-size:13.5px;line-height:1.6;background:var(--well);border:1px solid var(--line);border-radius:10px;padding:14px;max-height:340px;overflow:auto;color:#cfe0ef}

/* svg helpers */
.s-dim{fill:var(--dim);font:12px var(--sans)}
.s-lbl{fill:#d6e6f4;font:600 12.5px var(--sans)}
.s-mono{fill:#d6e6f4;font:12px var(--mono)}
.hit{cursor:pointer}
.hit:focus-visible{outline:none}
.hit:focus-visible>*:first-child{stroke:#b6dfff;stroke-width:3}

.seo-content{max-width:1000px;margin:20px 0 0;color:#8aa3bb;font-size:13px;line-height:1.7}
.seo-content h2{font-size:18px;font-weight:450;color:#b8cde0}


/* курс «Как устроен автомобиль»: уроки с 3D-лабораторией */
.c-page.wide{max-width:1080px}
.c-text{display:flex;flex-direction:column;gap:16px}
.c-nav a.sub{padding-left:18px;font-size:12.5px}
.c-nav .c-soon{display:grid;grid-template-columns:26px minmax(0,1fr) 14px;gap:8px;padding:7px 10px;font-size:13px;color:#6d849c}
.c-nav .c-soon .st{display:none}
.c-nav .c-soon .n{font:11px var(--mono);color:#5d7690}
.mod.active{border-color:#91b5d0;background:linear-gradient(130deg,#1b3550,#0f1d30)}
.mod.soon{opacity:.86}
.mod.soon:hover{border-color:#6283a341}
.mod-labs{display:flex;flex-direction:column;gap:4px;font-size:13px}
.mod-labs a{text-decoration:none}
.mod-labs a:hover{text-decoration:underline}
.tasks{list-style:none;padding:0!important;margin:0;display:flex;flex-direction:column;gap:8px!important;max-width:none!important}
.task{display:grid;grid-template-columns:22px minmax(0,1fr) auto;gap:10px;align-items:start;padding:11px 12px;border:1px solid var(--line);border-radius:11px;background:var(--panel-2)}
.task .mark{width:18px;height:18px;border-radius:50%;border:1.5px solid #4d6886;margin-top:2px;display:grid;place-items:center}
.task.done{border-color:#8fe3b055;background:var(--ok-bg)}
.task.done .mark{background:var(--ok);border-color:var(--ok)}
.task.done .mark::after{content:"";width:5px;height:9px;border:solid #0b2416;border-width:0 2px 2px 0;transform:translateY(-1px) rotate(45deg)}
.task .tt{line-height:1.5;color:#d2e2f0}
.hint-b{background:none;border:1px solid var(--line-2);border-radius:8px;padding:3px 9px;font-size:12px;color:var(--accent-2);cursor:pointer;white-space:nowrap}
.task .hint{grid-column:2/4;font-size:13.5px;color:var(--muted);line-height:1.5}
.task-status{font-size:13.5px!important;color:var(--dim)!important;margin-top:10px!important}
.task-status.ok{color:var(--ok)!important}
.c-lab{min-width:0}
.c-lab .lab-lesson{display:none}
.c-lab-wait,.c-lab-note{color:var(--dim)!important;font-size:14px!important}
.case .bubble{margin-bottom:10px}
.case>.btn{margin-top:10px}
@media (max-width:650px){.task{grid-template-columns:22px minmax(0,1fr)}.hint-b{grid-column:2;justify-self:start}}

@media (max-width:980px){
  .c-shell{grid-template-columns:minmax(0,1fr)}
  .c-nav{display:none}
  .c-select{display:block}
}
@media (max-width:650px){.site-header>div{display:none}.c-bar{width:110px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ===== блоки текста и тренажёры ===== */
.c-page{max-width:880px}
.key.lean{border-left-color:var(--ok);background:#14271f}
.key.lean .key-t{color:var(--ok)}
.card.done{border-color:#8fe3b055}
.card.done .card-h .tag::after{content:" · выполнено";color:var(--ok)}

/* «Так не говорим / говорим так» */
.says{display:flex;flex-direction:column;gap:8px}
.say-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.say{padding:10px 13px;border-radius:10px;font-size:14.5px;line-height:1.5;color:#dbe8f4}
.say span{display:block;font:9.5px var(--mono);letter-spacing:1.4px;text-transform:uppercase;margin-bottom:3px}
.say.bad{background:var(--bad-bg)}.say.bad span{color:var(--bad)}
.say.good{background:var(--ok-bg)}.say.good span{color:var(--ok)}
@media (max-width:560px){.say-row{grid-template-columns:1fr}}

/* карточки терминов */
.terms{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.term{position:relative;min-height:128px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(140deg,#16283e,#0d1828);cursor:pointer;padding:0;text-align:left}
.term:hover{border-color:#91b5d0}
.term-f,.term-b{position:absolute;inset:0;padding:14px;display:flex;flex-direction:column;gap:4px;transition:opacity .25s}
.term-f b{font-size:18px;font-weight:550;color:#fff}
.term-f small{font:11px var(--mono);color:#7aabd2}
.term-f i{margin-top:auto;font:normal 10px var(--mono);letter-spacing:1.4px;text-transform:uppercase;color:var(--dim)}
.term-b{opacity:0;font-size:13.5px;line-height:1.5;color:#d5e5f3;background:#173048;border-radius:14px;overflow:auto}
.term[aria-pressed="true"] .term-f{opacity:0}
.term[aria-pressed="true"] .term-b{opacity:1}

/* order */
.ord{display:flex;flex-direction:column;gap:12px}
.ord-built{list-style:none;padding:0!important;margin:0;counter-reset:o;display:flex;flex-direction:column;gap:6px!important;max-width:none!important}
.ord-built li{counter-increment:o;display:grid;grid-template-columns:30px 1fr;gap:4px 10px;padding:9px 12px;border-radius:10px;background:var(--ok-bg);color:#e2f3e8;font-size:14.5px;line-height:1.45;animation:pop .25s}
.ord-built li::before{content:counter(o,decimal-leading-zero);font:11px var(--mono);color:var(--ok);padding-top:3px;grid-row:span 2}
.ord-built li small{color:#b5d5c1;font-size:12.5px}
.ord-pool{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line-2);background:#14243a;color:#d8e7f4;border-radius:10px;padding:9px 12px;font-size:14px;cursor:pointer;text-align:left;line-height:1.4;max-width:100%}
.chip:hover{border-color:#9bbede;background:#1a2f4a}
.chip.shake{animation:shake .35s;border-color:var(--bad)}
@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
@keyframes pop{from{transform:scale(.97);opacity:.4}}

/* sort: полоса минут */
.mwrap{display:flex;flex-direction:column;gap:8px}
.mbar{display:flex;height:30px;border-radius:9px;overflow:hidden;font:11px var(--mono)}
.mbar i{display:grid;place-items:center;font-style:normal;color:var(--ink);min-width:28px}
.mbar .c0,.mleg .c0{background:var(--ok)}.mbar .c1,.mleg .c1{background:var(--warn)}.mbar .c2,.mleg .c2{background:var(--bad)}.mbar .c3,.mleg .c3{background:var(--accent)}
.mleg{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12.5px;color:var(--muted)}
.mleg i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px}

/* spot */
.spot{font-size:15.5px;line-height:2;color:#c6d8e9;padding:14px 16px;background:var(--well);border:1px solid var(--line);border-radius:12px}
.frag{display:inline;cursor:pointer;border:0;background:none;padding:1px 2px;margin:0;color:#e3eef8;border-bottom:1px dashed #7aabd2;cursor:pointer;font-size:inherit;line-height:inherit;text-align:left;border-radius:4px}
.frag:hover{background:#1a2f4a}
.frag.hit{background:var(--bad-bg);color:var(--bad);border-bottom-color:var(--bad);cursor:default}
.frag.miss{background:#1a2532;color:#8ea6bd;border-bottom-color:transparent;cursor:default}

/* dialog */
.chat{display:flex;flex-direction:column;gap:8px}
.chat .bubble{animation:pop .25s}
.bubble.me{align-self:flex-end;background:#26435a;border-radius:14px 14px 3px 14px}
.chat-ctl{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.chat-ctl .opts{align-self:stretch}

/* choice */
.item.choice{grid-template-columns:minmax(0,1fr)}
.item.choice .seg{justify-content:flex-start}
.seg button[disabled]{cursor:default}

/* seq: порядок затяжки */
.seq{max-width:560px;padding:6px}
.seq-plate{fill:#22364f;stroke:#7d9cbb;stroke-width:2}
.seq-hub{fill:#132438;stroke:#4d6886;stroke-width:1.5}
.bolt circle{fill:#3b5470;stroke:#a9c6e2;stroke-width:2;transition:fill .2s}
.bolt text{fill:var(--ink);font:700 15px var(--mono);pointer-events:none}
.bolt:hover circle{fill:#56769a}
.bolt.on circle{fill:var(--accent);stroke:#fff}
.bolt.shake{animation:shake .35s}

/* gauge: снять показание */
.gauge{overflow-x:auto;padding:8px}
.gauge svg{min-width:560px}
.gauge svg[aria-label="Циферблат индикатора"]{min-width:0;max-width:320px;margin:auto}
.g-steel{fill:#b9c6d3}
.g-slide{fill:#8e9fb1}
.g-face{fill:#f1f4f7;stroke:#53687e;stroke-width:2}
.g-face.sub{fill:#e2e8ee}
.g-tick{stroke:#0d1520;stroke-width:1.6}
.g-num{fill:#0d1520;font:700 15px var(--mono)}
.g-num.sm{font-size:12px}.g-num.xs{font-size:8.5px}
.g-datum{stroke:#0d1520;stroke-width:1.6}
.g-edge{stroke:#2a3644;stroke-width:2}
.g-needle{stroke:#d1342b;stroke-width:3;stroke-linecap:round}
.g-needle.sm{stroke-width:2}
.g-pin{fill:#2a3644}
.g-q{font-weight:550;color:var(--fg)!important}
.g-row input{width:130px;padding:9px 11px;border:1px solid var(--line-2);background:#12243a;color:#e3eef8;border-radius:9px;font:15px var(--mono)}
.g-unit{color:var(--dim);font-size:13px}

/* lab: врезка 3D-лаборатории */
.lab-frame{width:100%;height:min(70vh,560px);border:0;border-radius:12px;background:#0a1321}


/* свидетельство */
.cert{display:flex;flex-direction:column;gap:8px;align-items:center;text-align:center;padding:30px 20px;border:2px solid var(--accent);border-radius:16px;background:radial-gradient(ellipse at 50% 0,#1f3852,#0d1828)}
.cert b{font-size:26px;font-weight:500;color:#fff}
.cert span{color:#c6d8e9}
.cert small{color:var(--dim);font-family:var(--mono)}
.row input[type=text]{flex:1 1 220px}
.cert .cert-k{font:11px var(--mono);letter-spacing:1.5px;text-transform:uppercase;color:var(--accent)}
.cert .cert-warn{color:var(--warn);font-weight:600}
.cert .cert-foot{font-family:var(--sans);font-size:11.5px;max-width:460px}
.cert-name{flex:1 1 220px;min-width:0;padding:9px 11px;border:1px solid var(--line-2);background:#12243a;color:#e3eef8;border-radius:9px;font:15px var(--sans)}
.cert-name.need{border-color:var(--warn)}
@media print{body.print-cert .cert .cert-k,body.print-cert .cert .cert-warn{color:#000}body.print-cert .cert .cert-warn{border:1px solid #000;padding:4px 10px}body.print-cert .cert{justify-content:center}}
@media print{
  body.print-cert *{visibility:hidden}
  body.print-cert .cert,body.print-cert .cert *{visibility:visible}
  body.print-cert .cert{position:fixed;inset:20mm;background:#fff;border-color:#000}
  body.print-cert .cert b,body.print-cert .cert span,body.print-cert .cert small{color:#000}
}
.seq.ring{max-width:320px}
.g-row input{flex:0 0 130px;min-width:0}
.g-hint{display:none;color:var(--dim);font-size:12px;margin-top:-8px}
@media (max-width:620px){.g-hint{display:block}}

/* итоговый тест: выбор до завершения, панель «Завершить тест», пауза перед пересдачей */
.opt.sel{border-color:var(--accent-2);background:#163150;box-shadow:inset 3px 0 0 var(--accent-2)}
.opt-mine{font:11px var(--mono);color:var(--muted);white-space:nowrap}
.q.need .q-t{color:var(--warn)}
.final-note{margin:0;font-size:13.5px;line-height:1.55;color:var(--muted)}
.final-bar{position:sticky;bottom:0;z-index:2;display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-top:18px;padding:10px 12px;border:1px solid var(--line-2);border-radius:12px;background:var(--panel)}
.final-cnt{font:12px var(--mono);color:var(--muted)}
.card:has(.final-bar){overflow:clip} /* у .card overflow:hidden, а он ломает position:sticky у панели */
.final-retry{display:flex;flex-direction:column;gap:10px;align-items:flex-start;margin-top:18px}
.final-retry .btn[disabled]{opacity:.55;cursor:not-allowed}

/* цели урока (поле goals) */
.goals{border:1px solid var(--line-2);border-radius:12px;background:var(--panel-2);padding:12px 16px;margin:4px 0 18px}
.goals-t{display:block;font:11px var(--mono);letter-spacing:1.5px;text-transform:uppercase;color:var(--dim);margin-bottom:6px}
.goals ul{margin:0;padding-left:20px;display:grid;gap:4px;font-size:14.5px;line-height:1.5;color:#d4e3f0}