:root{
  --gold:#EBCA60; --gold-dim:#B0A078;
  --ground:#0C0B08; --ground-hi:#15120C;
  --surface:#13100B; --surface-2:#1B160D; --sunk:#0F0D09;
  --ink:#EFE8D6; --ink-2:#B0A078; --ink-3:#7E7357;
  --rule:#2A2416; --rule-strong:#3E361C;
  --ok:#8FBF7A; --bad:#D9856C;
  --t-art:#6FA8D6; --t-att:#D08A5C; --t-nerv:#EBCA60;
  --t-branch:#A98BD0; --t-vas:#D2606B; --t-topo:#93A98F;
  --bone-f:#E7DDC4; --bone-s:#9A8F73;
  --mus-f:#C06A60;  --mus-s:#8E4740;
  --ner-f:#EBCA60;  --ner-s:#B08F2E;
  --ves-f:#C5556A;  --ves-s:#8E3446;
  --jnt-f:#8FB0C6;  --jnt-s:#5F7F96;
  --shadow:0 1px 1px rgba(0,0,0,.5),0 18px 40px -20px rgba(0,0,0,.85);
}
.t-art{--c:var(--t-art)} .t-att{--c:var(--t-att)} .t-nerv{--c:var(--t-nerv)}
.t-branch{--c:var(--t-branch)} .t-vas{--c:var(--t-vas)} .t-topo{--c:var(--t-topo)}

*{box-sizing:border-box}
body{
  background-color:var(--ground);
  background-image:radial-gradient(820px 460px at 50% -110px, var(--ground-hi), transparent 74%);
  color:var(--ink);
  font-family:"Inter",system-ui,-apple-system,Segoe UI,sans-serif;
  font-size:16px;line-height:1.45;-webkit-font-smoothing:antialiased;
}
.wrap{max-width:1160px;margin:0 auto;padding-inline:20px;padding-block:32px 60px;display:flex;flex-direction:column;gap:20px}

/* ───────── шапка ───────── */
.brand{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.brand h1{font-family:"Manrope",system-ui,-apple-system,Segoe UI,sans-serif;font-weight:700;font-size:42px;line-height:.95;margin:0;letter-spacing:.03em;text-transform:uppercase;color:var(--gold)}
.brand .motto{margin:6px 0 0;font-family:"Newsreader",Georgia,serif;font-style:italic;font-size:15.5px;color:var(--gold-dim);letter-spacing:.02em}
.brand p{margin:8px 0 0;color:var(--ink-2);font-size:14.5px;max-width:54ch;line-height:1.5}
.spectrum{display:flex;height:3px;width:170px;border-radius:2px;overflow:hidden;margin-top:13px}
.spectrum i{flex:1}
.stats{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.stats div{border:1px solid var(--rule-strong);border-radius:9px;padding:9px 16px;background:var(--surface);text-align:center}
.stats b{display:block;font:700 19px/1 "Manrope",sans-serif;color:var(--ink);font-variant-numeric:tabular-nums}
.stats span{display:block;margin-top:5px;font:700 8.5px/1 "Manrope",sans-serif;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-3)}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 236px;gap:20px;align-items:start}

/* ───────── боковая карточка ───────── */
.aside{position:sticky;top:22px;background:var(--surface);border:1px solid var(--rule);border-radius:12px;box-shadow:var(--shadow);overflow:hidden}
.ablock{padding:14px 15px}
.ablock + .ablock{border-top:1px solid var(--rule)}
.aside h3{margin:0 0 10px;font:700 10px/1 "Manrope",sans-serif;letter-spacing:.17em;text-transform:uppercase;color:var(--ink-3)}
.steps{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:9px}
.steps li{display:flex;align-items:flex-start;gap:9px;font-size:13px;line-height:1.4;color:var(--ink-2)}
.steps li i{flex:none;width:17px;height:17px;border-radius:50%;background:var(--gold);color:#17130A;font:700 10.5px/17px "Manrope",sans-serif;text-align:center;font-style:normal;margin-top:1px}
.later{margin:0;padding:0;list-style:none;display:flex;flex-direction:column}
.later li{display:flex;flex-direction:column;gap:1px;padding:7px 0;border-bottom:1px solid var(--rule)}
.later li:first-child{padding-top:0} .later li:last-child{padding-bottom:0;border-bottom:0}
.later b{font-size:13px;font-weight:600;color:var(--ink);line-height:1.25}
.later span{font-size:12px;color:var(--ink-3);line-height:1.35}
.keys{margin:0;font-size:12px;color:var(--ink-3)}
.keys kbd{font:600 10.5px/1 "Manrope",sans-serif;border:1px solid var(--rule);background:var(--sunk);border-radius:3px;padding:2px 5px;color:var(--ink-2)}
.lg{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--ink-2)}
.lg div{display:flex;align-items:center;gap:8px}
.lg em{width:14px;height:4px;border-radius:2px;font-style:normal;flex:none}

/* ───────── панель ───────── */
.panel{background:var(--surface);border:1px solid var(--rule);border-radius:12px;box-shadow:var(--shadow);overflow:hidden}
.phead{display:flex;align-items:center;gap:12px;padding:13px 20px;border-bottom:1px solid var(--rule);background:var(--surface-2)}
.phead .ttl{font:700 10.5px/1 "Manrope",sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.phead .sys{font-size:12.5px;color:var(--ink-3)}
.phead .sys b{color:var(--ink-2);font-weight:600}
.pips{display:flex;gap:5px;margin-left:auto}
.pips i{width:20px;height:4px;border-radius:2px;background:var(--rule-strong);opacity:.4;transition:background .3s,opacity .3s}
.pips i.won{opacity:1;background:var(--ok)}
.pips i.live{opacity:1;background:var(--gold)}

.stage{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;padding:20px;align-items:stretch}

/* ───────── тёмное поле схемы ───────── */
.schema{
  position:relative;overflow:hidden;
  background:radial-gradient(120% 90% at 20% 0%, #17130B 0%, #0A0906 56%, #070605 100%);
  border:1px solid #332C18;border-radius:10px;padding:24px 20px;
  display:flex;flex-direction:column;justify-content:center;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -26px rgba(0,0,0,.8);
  --bone-f:#EBE2CB; --bone-s:#9B9077;
  --mus-f:#C56B60;  --mus-s:#8B4740;
  --ner-f:#EAC05C;  --ner-s:#B08F2E;
  --ves-f:#CC5C70;  --ves-s:#8E3446;
  --jnt-f:#A0C6E0;  --jnt-s:#6B94B4;
  --t-art:#7FB4E0; --t-att:#DC9668; --t-nerv:#F0D06C;
  --t-branch:#B79BDE; --t-vas:#DE6E7A; --t-topo:#A2BC9C;
}
.schema::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 40% at 50% 50%, transparent 40%, rgba(0,0,0,.35) 100%)}
.schema .chain{position:relative;z-index:1}
.schema .nm .ru{color:#F3ECDA}
.schema .nm .la{color:#9A8E6E}
.schema .nm .cat{color:#74684E}
.schema .row.gap .nm em{color:var(--gold)}
.schema .row.gap .nm small{color:#74684E}
.schema .g-hole{stroke:var(--gold)}
.schema .g-hole-t{fill:var(--gold)}

/* ───────── схема цепи ───────── */
.chain{display:flex;flex-direction:column}
.row{display:grid;grid-template-columns:58px minmax(0,1fr);gap:15px;align-items:center;
     animation:rise .4s cubic-bezier(.2,.75,.3,1) backwards;animation-delay:calc(var(--i,0)*95ms)}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.row svg{display:block;overflow:visible}

.g-bone{fill:var(--bone-f);stroke:var(--bone-s);stroke-width:1.3;stroke-linejoin:round}
.g-mus{fill:var(--mus-f);stroke:var(--mus-s);stroke-width:1.3}
.g-fib{fill:none;stroke:var(--mus-s);stroke-width:1;opacity:.6}
.g-ner{fill:none;stroke:var(--ner-f);stroke-width:5;stroke-linecap:round;stroke-linejoin:round}
.g-ves{fill:none;stroke:var(--ves-f);stroke-width:5.5;stroke-linecap:round;stroke-linejoin:round}
.g-jnt{fill:var(--jnt-f);stroke:var(--jnt-s);stroke-width:1.3}
.g-hole{fill:none;stroke:var(--ink-3);stroke-width:2;stroke-dasharray:4 4.5;animation:breathe 2.8s ease-in-out infinite}
.g-hole-t{font:700 21px/1 "Manrope",sans-serif;fill:var(--ink-3);text-anchor:middle}
.row{min-height:62px}
.row.gap{min-height:74px}
@keyframes breathe{0%,100%{opacity:.45}50%{opacity:1}}
.row.filled .glyph{animation:pop .5s cubic-bezier(.2,.8,.3,1)}
@keyframes pop{0%{opacity:0;transform:scale(.85)}62%{transform:scale(1.04)}100%{opacity:1;transform:none}}

.nm .ru{display:block;font-weight:600;font-size:17px;line-height:1.2;letter-spacing:-.005em}
.nm .la{display:block;font-family:"Newsreader",Georgia,serif;font-style:italic;font-size:13px;color:var(--ink-3);margin-top:2px}
.nm .cat{display:block;font:700 9px/1 "Manrope",sans-serif;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-3);margin-top:5px}
.row.end .nm .ru{font-size:18px}
.row.gap .nm em{font-style:normal;font:700 13px/1 "Manrope",sans-serif;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3)}
.row.gap .nm small{display:block;font-size:12.5px;color:var(--ink-3);margin-top:5px;font-family:"Newsreader",Georgia,serif;font-style:italic}

.lnk .lab{font-style:normal;font:700 10px/1 "Manrope",sans-serif;letter-spacing:.15em;text-transform:uppercase;color:var(--c)}
.lnk.key .lab{font-size:11.5px;display:inline-block;box-shadow:inset 0 0 0 1.5px var(--c);border-radius:99px;padding:5px 11px}
/* провод прорисовывается сверху вниз */
.lnk .wire{fill:none;stroke:var(--c);stroke-width:4;stroke-linecap:round;opacity:.5;
  stroke-dasharray:62;stroke-dashoffset:62;animation:draw .55s cubic-bezier(.3,.7,.3,1) forwards;
  animation-delay:calc(var(--i,0)*95ms + 60ms)}
@keyframes draw{to{stroke-dashoffset:0}}
.lnk.key .wire{stroke-width:6;opacity:1}

/* бегущий импульс по двум связям у разрыва */
.pulse{fill:none;stroke:#fff;stroke-width:3.6;stroke-linecap:round;opacity:.75;
  stroke-dasharray:9 50;filter:drop-shadow(0 0 4px var(--c))}
.lnk.down .pulse{animation:flowdown 1.9s linear infinite 1s}
.lnk.up   .pulse{animation:flowup   1.9s linear infinite 1s}
@keyframes flowdown{from{stroke-dashoffset:59}to{stroke-dashoffset:0}}
@keyframes flowup{from{stroke-dashoffset:0}to{stroke-dashoffset:59}}

/* ток по нерву и сосуду */
.g-flow{fill:none;stroke:#fff;opacity:.4;stroke-width:2;stroke-linecap:round;
  stroke-dasharray:5 21;animation:gflow 2.4s linear infinite}
@keyframes gflow{from{stroke-dashoffset:26}to{stroke-dashoffset:0}}

/* волна при верном ответе */
.ripple{transform-box:fill-box;transform-origin:50% 50%;animation:ripple .85s cubic-bezier(.2,.7,.3,1) forwards}
.ripple circle{fill:none;stroke:var(--ner-f);stroke-width:2.5}
@keyframes ripple{from{transform:scale(.55);opacity:.9}to{transform:scale(2.3);opacity:0}}

.chain{transition:opacity .2s ease,transform .2s ease}
.chain.out{opacity:0;transform:translateY(-10px)}

/* ───────── вопрос ───────── */
.ask{display:flex;flex-direction:column;justify-content:center;gap:15px;padding:4px 0 0}
.q{margin:0;font-size:26px;font-weight:600;line-height:1.15;text-wrap:balance;letter-spacing:-.012em}
.conds{display:flex;flex-direction:column;gap:8px}
.cond{display:flex;align-items:baseline;gap:11px;font-size:15.5px;line-height:1.4;color:var(--ink-2)}
.cond i{flex:none;width:9px;height:9px;border-radius:50%;background:var(--c);position:relative;top:-1px}
.cond b{color:var(--ink);font-weight:600}
.site2{display:block;margin-top:3px;font-style:normal;font-size:13px;color:var(--ink-3);line-height:1.35}
.site2 u{text-decoration:none;font-family:"Newsreader",Georgia,serif;font-style:italic}
.lnk .site{display:block;margin-top:4px;font-size:11.5px;line-height:1.3;color:#8195A6;max-width:22ch}
.lnk.key .site{color:#A6BACB;margin-top:6px}

.opts{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.opt{display:flex;align-items:flex-start;gap:10px;text-align:left;background:var(--surface);border:1px solid var(--rule-strong);border-radius:10px;padding:13px;cursor:pointer;color:inherit;font:inherit;transition:border-color .14s,background .14s,transform .08s,box-shadow .14s}
.opt:hover:not(:disabled){border-color:var(--gold);background:var(--surface-2);box-shadow:0 5px 16px -9px rgba(18,24,32,.5)}
.opt:active:not(:disabled){transform:translateY(1px)}
.opt:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.opt kbd{flex:none;font:700 10.5px/1 "Manrope",sans-serif;color:var(--ink-3);border:1px solid var(--rule);border-radius:3px;padding:3px 5px;background:var(--sunk);margin-top:3px}
.opt .ru{display:block;font-weight:600;font-size:15px;line-height:1.2}
.opt .la{display:block;font-family:"Newsreader",Georgia,serif;font-style:italic;font-size:12.5px;color:var(--ink-3);margin-top:1px}
.opt.dead{opacity:.36;cursor:not-allowed;border-style:dashed}
.opt.shake{animation:shake .34s}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}40%{transform:translateX(5px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}

.hint{font-size:14px;color:var(--ink-2);min-height:21px;line-height:1.45}
.hint.bad{color:var(--bad)}
.solvedbox{display:none;flex-direction:column;gap:6px;border-left:3px solid var(--gold);padding:2px 0 2px 15px}
.solvedbox.show{display:flex;animation:rise .42s cubic-bezier(.2,.75,.3,1)}
.solvedbox h2{margin:0;font:700 11.5px/1 "Manrope",sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}
.solvedbox p{margin:0;font-size:15.5px;color:var(--ink);line-height:1.5}
.solvedbox p.tail{font-size:13.5px;color:var(--ink-3)}

/* клиническое значение */
.clinic{display:none;flex-direction:column;gap:7px;border-radius:7px;padding:14px 16px;
  background:color-mix(in srgb,var(--t-vas) 8%,var(--surface));
  border:1px solid color-mix(in srgb,var(--t-vas) 28%,transparent)}
.clinic.show{display:flex;animation:rise .45s cubic-bezier(.2,.75,.3,1)}
.clinic-h{display:flex;align-items:center;gap:8px}
.clinic-h i{width:8px;height:8px;border-radius:50%;background:var(--t-vas);flex:none;
  box-shadow:0 0 0 4px color-mix(in srgb,var(--t-vas) 18%,transparent)}
.clinic-h span{font:700 10px/1 "Manrope",sans-serif;letter-spacing:.17em;text-transform:uppercase;color:var(--t-vas)}
.clinic b{font-size:16px;font-weight:600;line-height:1.25;color:var(--ink)}
.clinic p{margin:0;font-size:14.5px;line-height:1.5;color:var(--ink-2)}
.clinic-src{font-size:11.5px;color:var(--ink-3);font-family:"Newsreader",Georgia,serif;font-style:italic}
.clinic-src a{color:var(--ink-3)}
.clinic-src a:hover{color:var(--ink-2)}

.bar{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding:14px 20px;border-top:1px solid var(--rule);background:var(--surface-2)}
.stat{display:flex;flex-direction:column;gap:2px}
.stat span{font:700 9px/1 "Manrope",sans-serif;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-3)}
.stat strong{font-size:19px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1}
.bar .spacer{flex:1}
.btn{font:600 12.5px/1 "Manrope",sans-serif;letter-spacing:.09em;text-transform:uppercase;padding:12px 20px;border-radius:99px;border:1px solid var(--gold);background:var(--gold);color:#17130A;cursor:pointer;transition:opacity .14s,background .14s}
.btn:hover{opacity:.87}
.btn.ghost{background:transparent;color:var(--ink-2);border-color:var(--rule-strong)}
.btn.ghost:hover{border-color:var(--gold);color:var(--gold);opacity:1}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

@media (max-width:920px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .aside{position:static;order:-1}
}
@media (max-width:860px){
  .stage{grid-template-columns:minmax(0,1fr);gap:18px;padding:16px}
  .schema{padding:18px 16px}
}
@media (max-width:540px){
  .opts{grid-template-columns:1fr}
  .brand h1{font-size:31px}
  .q{font-size:20px}
  .cond{font-size:14.5px}
  .node .ru{font-size:15.5px}
}
[data-anim="off"] *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}

.animbtn{margin-left:10px;display:inline-flex;align-items:center;gap:7px;border:1px solid var(--rule-strong);background:transparent;
  border-radius:99px;padding:5px 11px 5px 8px;cursor:pointer;color:var(--ink-2);
  font:700 9.5px/1 "Manrope",sans-serif;letter-spacing:.14em;text-transform:uppercase}
.animbtn:hover{border-color:var(--gold);color:var(--gold)}
.animbtn:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.animbtn i{width:7px;height:7px;border-radius:50%;background:var(--rule-strong)}
[data-anim="on"] .animbtn i{background:var(--ok);box-shadow:0 0 0 3px color-mix(in srgb,var(--ok) 22%,transparent)}

.sitebar{max-width:1160px;margin:0 auto;padding:18px 20px 0;display:flex;align-items:baseline;flex-wrap:wrap;gap:12px}
.sitebar .logo{font:700 19px/1 "Manrope",sans-serif;letter-spacing:.04em;color:var(--gold);text-decoration:none}
.sitebar .layer{font:700 9.5px/1 "Manrope",sans-serif;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3)}
.sitebar nav{margin-left:auto;display:flex;align-items:baseline;gap:8px;font-size:13.5px;color:var(--ink-3)}
.sitebar nav a{color:var(--ink-2);text-decoration:none}
.sitebar nav a:hover{color:var(--gold)}
.sitebar nav b{color:var(--ink);font-weight:600}