.bg-stage{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;background:var(--ink-1)}
.bg-stage__grad{position:absolute;inset:-20%;
  background:
    radial-gradient(40% 35% at var(--bx1,20%) var(--by1,20%),color-mix(in oklab,var(--layer-a) 85%,transparent),transparent 70%),
    radial-gradient(38% 34% at var(--bx2,80%) var(--by2,70%),color-mix(in oklab,var(--layer-b) 70%,transparent),transparent 70%),
    radial-gradient(30% 28% at var(--bx3,50%) var(--by3,110%),color-mix(in oklab,var(--layer-c) 80%,transparent),transparent 70%),
    linear-gradient(180deg,var(--ink-1),var(--ink-0));
  transition:background 1.2s linear;
  animation:bgDrift 38s var(--ease-io) infinite alternate}
@keyframes bgDrift{0%{transform:translate3d(0,0,0) rotate(0)}50%{transform:translate3d(-3%,2%,0) rotate(4deg)}100%{transform:translate3d(2%,-3%,0) rotate(-3deg)}}
.bg-stage__strata{position:absolute;inset:-50% -10%;opacity:.5;
  background:repeating-linear-gradient(174deg,transparent 0 88px,rgba(214,204,255,.035) 88px 90px,transparent 90px 170px,rgba(0,0,0,.25) 170px 174px);
  animation:strataMove 60s linear infinite}
@keyframes strataMove{to{transform:translate3d(0,-348px,0)}}
.bg-stage__canvas{position:absolute;inset:0;width:100%;height:100%}
.bg-stage__vignette{position:absolute;inset:0;background:radial-gradient(120% 90% at 40% 50%,transparent 50%,rgba(0,0,0,.55) 100%)}
.ink-layer{position:fixed;inset:0;z-index:1;pointer-events:none;overflow:hidden}
.ink-blot{position:absolute;width:20px;height:20px;margin:-10px 0 0 -10px;border-radius:50%;
  background:radial-gradient(circle,var(--blot,rgba(47,209,162,.5)) 0%,transparent 70%);
  filter:url(#goo);animation:blot 2.6s var(--ease-out) forwards}
.ink-ring{position:absolute;width:20px;height:20px;margin:-10px 0 0 -10px;border-radius:50%;border:2px solid var(--blot-ring,rgba(111,240,200,.7));animation:ring 1.6s var(--ease-out) forwards}
@keyframes blot{0%{transform:scale(.2);opacity:.95}60%{opacity:.6}100%{transform:scale(26);opacity:0}}
@keyframes ring{0%{transform:scale(.4);opacity:1}100%{transform:scale(14);opacity:0}}
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;height:var(--header-h);
  display:flex;align-items:center;gap:clamp(10px,2vw,28px);
  padding:0 calc(var(--rail-w) + clamp(10px,2.4vw,40px)) 0 clamp(12px,2.4vw,40px);
  background:linear-gradient(180deg,rgba(8,6,16,.92),rgba(8,6,16,.72));
  backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);
  border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text);min-width:0;flex:0 1 auto}
.brand__mark{width:44px;height:44px;flex:none}
.brand__name{font-family:var(--ff-head);font-weight:700;font-size:clamp(.8rem,.7rem + .4vw,1rem);line-height:1.1;letter-spacing:-.01em;white-space:nowrap}
.brand__name small{display:block;font-family:var(--ff-body);font-weight:600;font-size:.72em;color:var(--text-3);letter-spacing:.02em}
.site-nav{margin-left:auto;display:flex;gap:4px}
.site-nav a{padding:10px 14px;border-radius:999px;text-decoration:none;color:var(--text-2);font-weight:700;font-size:var(--fs-sm);white-space:nowrap;transition:background .25s,color .25s}
.site-nav a:hover,.site-nav a.is-active{background:rgba(214,204,255,.1);color:var(--text)}
.site-nav a.is-active{box-shadow:inset 0 0 0 1px var(--line-2)}
.header-cta{flex:none}
.burger{display:none;margin-left:auto;width:52px;height:52px;border-radius:16px;border:1px solid var(--line-2);background:rgba(214,204,255,.06);position:relative}
.burger span{position:absolute;left:14px;right:14px;height:2.5px;border-radius:2px;background:var(--text);transition:transform .35s var(--ease-out),opacity .2s}
.burger span:nth-child(1){top:17px}.burger span:nth-child(2){top:24.5px}.burger span:nth-child(3){top:32px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
@media (max-width:1599px){
  .site-nav{position:fixed;top:var(--header-h);left:0;right:0;flex-direction:column;gap:6px;padding:16px;
    background:rgba(8,6,16,.97);border-bottom:1px solid var(--line);
    transform:translateY(-12px);opacity:0;visibility:hidden;transition:.35s var(--ease-out);max-height:calc(100vh - var(--header-h));overflow:auto}
  .site-nav.is-open{transform:none;opacity:1;visibility:visible}
  .site-nav a{font-size:var(--fs-lg);padding:14px 18px;border-radius:16px;white-space:normal}
  .burger{display:block}
  .header-cta{display:none}
}
.burger{flex:none}
@media (max-width:767px){ .site-header{padding-right:calc(var(--rail-w) + 8px);padding-left:12px;gap:10px} .site-header .brand{flex:1 1 auto;min-width:0;gap:10px} .site-header .brand__mark{width:36px;height:36px} .site-header .brand__name{flex:1 1 auto;min-width:150px;display:block;white-space:normal;overflow-wrap:normal;word-break:normal;font-size:.66rem;line-height:1.2} .site-header .brand__name small{display:none} .burger{margin-left:0;flex:none} }
@media (max-width:420px){ .brand__mark{width:36px;height:36px} .site-header .brand__name{font-size:.62rem} }
.rope{position:fixed;left:0;right:0;top:var(--header-h);height:6px;z-index:51;pointer-events:none;background:rgba(214,204,255,.06)}
.rope__fill{height:100%;width:100%;transform-origin:0 50%;transform:scaleX(var(--p,0));
  background:linear-gradient(90deg,var(--violet-5),var(--emerald-4) 55%,var(--gold-4));
  box-shadow:0 0 14px rgba(47,209,162,.6)}
.rope__fill::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(0,0,0,.25) 0 3px,transparent 3px 8px);mix-blend-mode:multiply}
.shaft{position:fixed;right:0;top:var(--header-h);bottom:0;width:var(--rail-w);z-index:52;
  background:linear-gradient(90deg,rgba(5,4,9,.6),rgba(26,19,48,.9));border-left:1px solid var(--line);touch-action:none}
.shaft__track{position:absolute;inset:10px 0}
.shaft__tick{position:absolute;right:0;width:100%;height:2px;background:rgba(214,204,255,.28);border:0;padding:0;cursor:pointer}
.shaft__tick::before{content:"";position:absolute;inset:-8px 0}
.shaft__tick:hover,.shaft__tick.is-passed{background:var(--emerald-4)}
.shaft__tick-label{position:absolute;right:calc(100% + 12px);top:50%;transform:translateY(-50%) translateX(8px);white-space:nowrap;
  padding:6px 12px;border-radius:999px;background:rgba(10,8,20,.95);border:1px solid var(--line-2);
  font-size:var(--fs-xs);font-weight:700;color:var(--text);opacity:0;pointer-events:none;transition:.25s var(--ease-out)}
.shaft__tick:hover .shaft__tick-label,.shaft__tick:focus-visible .shaft__tick-label{opacity:1;transform:translateY(-50%)}
.shaft__thumb{position:absolute;left:3px;right:3px;top:0;height:var(--th,80px);border-radius:999px;cursor:grab;
  background:linear-gradient(180deg,var(--gold-3),var(--gold-5) 40%,var(--emerald-5));
  box-shadow:0 0 0 1px rgba(0,0,0,.4),0 0 18px rgba(236,189,92,.45);transform:translateY(var(--ty,0))}
.shaft__thumb:active{cursor:grabbing}
.shaft__readout{position:absolute;right:calc(100% + 10px);top:0;transform:translateY(var(--ty,0));
  padding:8px 12px;border-radius:14px;background:rgba(10,8,20,.92);border:1px solid var(--line-2);
  font-family:var(--ff-head);font-size:.74rem;font-weight:600;white-space:nowrap;color:var(--gold-3);
  pointer-events:none;opacity:0;transition:opacity .3s}
.shaft:hover .shaft__readout,.shaft.is-dragging .shaft__readout,body.is-scrolling .shaft__readout{opacity:1}
@media (max-width:767px){ .shaft__thumb{left:2px;right:2px} .shaft__tick-label{display:none} .shaft__readout{font-size:.68rem;padding:6px 9px} }
.here{position:fixed;left:clamp(10px,2vw,28px);bottom:clamp(10px,2vw,28px);z-index:45;
  display:flex;align-items:center;gap:12px;padding:8px 18px 8px 8px;border-radius:999px;
  background:rgba(10,8,20,.88);border:1px solid var(--line-2);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  max-width:calc(100vw - var(--rail-w) - 120px);transition:transform .5s var(--ease-out),opacity .4s}
.here__num{flex:none;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-family:var(--ff-head);font-weight:700;font-size:.85rem;
  background:conic-gradient(var(--emerald-4) calc(var(--lp,0)*1turn),rgba(214,204,255,.12) 0);color:var(--text);position:relative}
.here__num::before{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--ink-2)}
.here__num span{position:relative}
.here__txt{min-width:0;line-height:1.2}
.here__txt b{display:block;font-size:var(--fs-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.here__txt small{display:block;font-size:var(--fs-xs);color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.here.is-hidden{transform:translateY(140%);opacity:0}
.to-top{position:fixed;right:calc(var(--rail-w) + clamp(10px,1.6vw,24px));bottom:clamp(10px,2vw,28px);z-index:46;
  width:68px;height:68px;border-radius:22px;border:1px solid var(--line-2);
  background:linear-gradient(160deg,var(--violet-7),var(--ink-2));display:grid;place-items:center;
  box-shadow:0 10px 30px rgba(0,0,0,.45);transform:translateY(160%);opacity:0;transition:transform .5s var(--ease-out),opacity .4s}
.to-top.is-visible{transform:none;opacity:1}
.to-top svg{width:38px;height:38px}
.to-top:hover svg{animation:bucketUp .9s var(--ease-out)}
@keyframes bucketUp{30%{transform:translateY(-8px)}60%{transform:translateY(2px)}100%{transform:none}}
@media (min-width:1200px){ .to-top{right:calc(var(--well-w) + var(--rail-w) + 20px)} }
.btn{--bg:linear-gradient(135deg,var(--gold-3),var(--gold-5));display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  min-height:48px;padding:.8em 1.5em;border-radius:999px;border:0;background:var(--bg);color:#1a1206;
  font-family:var(--ff-body);font-weight:800;font-size:var(--fs-md);line-height:1.15;text-decoration:none;text-align:center;
  box-shadow:0 10px 26px rgba(217,164,65,.28),inset 0 -3px 0 rgba(0,0,0,.18);transition:transform .25s var(--ease-out),box-shadow .25s,filter .25s}
.btn:hover{transform:translateY(-2px);color:#1a1206;filter:brightness(1.06);box-shadow:0 14px 34px rgba(217,164,65,.4),inset 0 -3px 0 rgba(0,0,0,.18)}
.btn svg{width:1.3em;height:1.3em;flex:none}
.btn--ghost{--bg:rgba(214,204,255,.08);color:var(--text);box-shadow:inset 0 0 0 1.5px var(--line-2)}
.btn--ghost:hover{color:var(--text);box-shadow:inset 0 0 0 1.5px var(--violet-3)}
.btn--emerald{--bg:linear-gradient(135deg,var(--emerald-3),var(--emerald-5));color:#03201a;box-shadow:0 10px 26px rgba(47,209,162,.25),inset 0 -3px 0 rgba(0,0,0,.18)}
.btn--emerald:hover{color:#03201a}
.btn--sm{min-height:46px;font-size:var(--fs-sm);padding:.6em 1.15em}
.panel{position:relative;border-radius:var(--r-xl);padding:var(--pad-panel);overflow:clip;
  box-shadow:0 1px 0 rgba(255,255,255,.06) inset,0 30px 60px -30px rgba(0,0,0,.6);
  border:1px solid rgba(214,204,255,.08)}
.panel + .panel,.panel + .grid-2,.grid-2 + .panel,.panel + .grid-3,.grid-3 + .panel{margin-top:var(--gap)}
.panel--tight{padding:var(--pad-card)}
.panel__head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 24px;margin-bottom:clamp(18px,2.4vw,36px)}
.panel__head > *{min-width:0}
.panel__head h2,.panel__head h3{margin:0;flex:1 1 420px}
.tile{position:relative;border-radius:var(--r-lg);padding:var(--pad-card);background:rgba(255,255,255,.055);
  border:1px solid rgba(214,204,255,.1);min-width:0}
.tile--solid{background:var(--ink-2)}
.tile--violet{background:linear-gradient(160deg,rgba(106,74,214,.32),rgba(53,34,107,.25))}
.tile--emerald{background:linear-gradient(160deg,rgba(23,165,127,.28),rgba(10,61,51,.28))}
.tile--gold{background:linear-gradient(160deg,rgba(236,189,92,.24),rgba(59,42,12,.3))}
.tile--paper{background:#f5efe1;color:#1a1424;border-color:transparent}
.tile--paper h3,.tile--paper h4,.tile--paper strong{color:#140d22}
.tile--paper p,.tile--paper li{color:#2b2238}
.tile h3,.tile h4{margin-bottom:.4em}
.tile__icon{width:64px;height:64px;margin-bottom:16px}
.kicker{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px;padding:8px 16px 8px 8px;border-radius:999px;
  background:rgba(214,204,255,.08);border:1px solid var(--line);font-size:var(--fs-sm);font-weight:700;color:var(--text-2);max-width:100%}
.kicker__dot{flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-family:var(--ff-head);font-size:.68rem;font-weight:700;
  background:linear-gradient(135deg,var(--gold-3),var(--gold-5));color:#1a1206}
.lead{font-size:var(--fs-lg);line-height:1.55;color:var(--text-2);max-width:46ch}
.level-head{display:grid;gap:14px;margin-bottom:clamp(20px,3vw,44px)}
.level-head__meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px}
.level-badge{display:inline-flex;align-items:center;gap:10px;padding:8px 18px;border-radius:14px;
  background:linear-gradient(135deg,rgba(236,189,92,.2),rgba(236,189,92,.06));border:1px solid rgba(236,189,92,.4);
  font-family:var(--ff-head);font-size:.8rem;font-weight:700;letter-spacing:.06em;color:var(--gold-3);text-transform:uppercase}
.depth-chip{font-family:var(--ff-head);font-size:.8rem;font-weight:600;color:var(--emerald-3);letter-spacing:.04em}
.epigraph{font-family:var(--ff-epi);font-style:italic;font-weight:500;font-size:clamp(1.2rem,1.05rem + .7vw,1.6rem);line-height:1.3;color:var(--violet-2);
  max-width:34ch;margin:0;padding-left:22px;border-left:0;position:relative}
.epigraph::before{content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:3px;border-radius:3px;background:linear-gradient(var(--gold-4),var(--violet-5))}
[data-tip]{position:relative}
.tip-term{border-bottom:2px dotted var(--gold-4);cursor:help;color:inherit}
.tip-bubble{position:fixed;z-index:120;max-width:min(340px,calc(100vw - 32px));padding:14px 18px;border-radius:18px;
  background:rgba(14,10,26,.98);border:1px solid rgba(236,189,92,.45);color:var(--text);font-size:var(--fs-sm);line-height:1.45;font-weight:600;
  box-shadow:0 18px 40px rgba(0,0,0,.55);pointer-events:none;opacity:0;transform:translateY(6px);transition:opacity .2s,transform .25s var(--ease-out)}
.tip-bubble.is-on{opacity:1;transform:none}
.tip-inline{display:none}
@media (hover:none){
  .tip-inline{display:block;margin-top:8px;padding:10px 14px;border-radius:14px;background:rgba(236,189,92,.1);border:1px dashed rgba(236,189,92,.45);
    font-size:var(--fs-sm);line-height:1.4;color:var(--gold-3);font-weight:600}
  .tip-term + .tip-inline{display:inline;margin:0 0 0 .3em;padding:1px 8px;border-radius:8px;font-size:.82em}
}
.reveal{opacity:0;transform:translateY(40px) scale(.985);transition:opacity .9s var(--ease-out),transform 1s var(--ease-out)}
.reveal.is-in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}.reveal[data-delay="2"]{transition-delay:.16s}.reveal[data-delay="3"]{transition-delay:.24s}
.no-js .reveal{opacity:1;transform:none}
.well{position:fixed;top:var(--header-h);bottom:0;right:var(--rail-w);width:var(--well-w);z-index:3;pointer-events:none}
.well__canvas{position:absolute;inset:0;width:100%!important;height:100%!important}
.well__sky{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;mix-blend-mode:screen}
.well__canvas-holder{position:absolute;inset:0}
.well__hud{position:absolute;left:50%;bottom:clamp(18px,3vh,40px);transform:translateX(-50%);display:flex;gap:10px;pointer-events:auto;flex-wrap:wrap;justify-content:center;width:max-content;max-width:94%}
.well__stat{padding:10px 16px;border-radius:16px;background:rgba(10,8,20,.82);border:1px solid var(--line-2);text-align:center;line-height:1.15;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.well__stat b{display:block;font-family:var(--ff-head);font-size:1.1rem;color:var(--gold-3);font-weight:700}
.well__stat small{font-size:var(--fs-xs);color:var(--text-2);font-weight:700}
.well__toggle{display:none}
@media (max-width:1199px){
  .well{top:var(--header-h);bottom:0;right:var(--rail-w);width:min(46vw,340px);z-index:1;opacity:.62;pointer-events:none;
    -webkit-mask:linear-gradient(90deg,transparent 0,#000 30%);mask:linear-gradient(90deg,transparent 0,#000 30%)}
  .well__hud,.well__toggle{display:none}
}
@media (max-width:420px){ .here__txt small{display:none} .here{padding-right:12px} }
.bird{position:fixed;z-index:110;left:50%;top:50%;width:120px;height:120px;margin:-60px 0 0 -60px;pointer-events:none;opacity:0}
.bird.is-on{animation:birdFly 3.4s var(--ease-io) forwards}
@keyframes birdFly{0%{opacity:0;transform:translate(-40vw,30vh) scale(.4) rotate(-10deg)}15%{opacity:1}50%{transform:translate(0,0) scale(1.1) rotate(4deg)}85%{opacity:1}100%{opacity:0;transform:translate(45vw,-40vh) scale(.5) rotate(10deg)}}
.toast{position:fixed;left:50%;top:calc(var(--header-h) + 22px);z-index:115;transform:translate(-50%,-20px);opacity:0;pointer-events:none;
  padding:14px 22px;border-radius:18px;background:rgba(14,10,26,.97);border:1px solid rgba(236,189,92,.45);
  font-family:var(--ff-epi);font-style:italic;font-size:1.3rem;color:var(--gold-3);transition:.5s var(--ease-out);max-width:calc(100vw - 40px);text-align:center}
.toast.is-on{opacity:1;transform:translate(-50%,0)}
.ph{position:relative;border-radius:var(--r-lg);overflow:hidden;background:
  repeating-linear-gradient(135deg,rgba(214,204,255,.05) 0 12px,transparent 12px 24px),linear-gradient(160deg,var(--violet-8),var(--ink-2));
  display:grid;place-items:center;color:var(--text-3);font-size:var(--fs-sm);font-weight:700;text-align:center;padding:20px;min-height:200px}
.ph::after{content:attr(data-label)}