.wa-page{--wa-dark:var(--vi-n23);--wa-accent:var(--vi-brand);--wa-muted:var(--vi-n92);color:var(--vi-n23)}
.wa-page section{padding-block:clamp(42px,5.5vw,80px)}
.wa-page h1{font-size:clamp(43px,4.7vw,70px);line-height:1.08;letter-spacing:-.04em;margin:0;text-wrap:balance}
.wa-page h2{font-size:clamp(31px,3.5vw,50px);line-height:1.12;letter-spacing:-.03em;margin:0;text-wrap:balance}
.wa-page h3{font-size:clamp(23px,2.1vw,30px);line-height:1.3;letter-spacing:-.02em}
.wa-page p{margin:0}
.wa-eyebrow{font-size:12px;font-weight:600;letter-spacing:.05em;color:var(--vi-n92);margin-bottom:22px!important}
.wa-page .on-dark .wa-eyebrow{color:var(--vi-brand)}
.wa-intro,.wa-lead{font-size:18px;line-height:1.8;color:var(--vi-n77)}
.wa-body{font-size:15px;line-height:1.8;color:var(--wa-muted);margin-top:18px!important}
.wa-actions{display:flex;align-items:center;gap:14px 24px;flex-wrap:wrap;margin-top:30px}
.wa-text-link,.wa-paper-link{text-underline-offset:5px;font-size:14px;color:var(--vi-n77)}
.wa-page .on-dark .wa-text-link{color:var(--vi-n245)}
.wa-page .wa-hero{background:radial-gradient(ellipse at 85% 20%,var(--vi-n51) 0,transparent 58%),var(--wa-dark);padding-block:clamp(40px,4.5vw,64px);color:var(--vi-n255)}
.wa-hero-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(30px,5vw,78px);align-items:center}
.wa-hero-copy .wa-lead{color:var(--vi-n217);margin-top:28px;max-width:47ch}
.wa-concept-note{display:flex;justify-content:flex-end;margin-top:18px}
.wa-concept-note p{font-size:12px;line-height:1.7;color:var(--vi-n153);width:calc(50% - 16px);max-width:630px}
.skill-composer{background:var(--vi-n23);border:1px solid var(--vi-n77);border-radius:16px;padding:24px;box-shadow:0 24px 64px rgb(0 0 0 / 0.2);min-width:0}
.skill-label{color:var(--vi-n153);font-size:11px;letter-spacing:.05em;margin-bottom:14px!important}
.skill-tasks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px;padding:4px;border:1px solid var(--vi-n77);border-radius:8px;background:var(--vi-n23)}
.skill-tasks button{border:0;background:transparent;color:var(--vi-n189);padding:11px 7px;border-radius:5px;font:inherit;font-size:13px;line-height:1.35;cursor:pointer;min-height:40px}
.skill-tasks button[aria-pressed=true]{background:var(--vi-n245);color:var(--vi-n51);box-shadow:0 1px 5px rgb(0 0 0 / 0.2)}
.skill-stage{position:relative;margin:18px 0 16px;background:radial-gradient(ellipse at 60% 50%,var(--vi-n51),transparent 70%),var(--vi-n23);border:1px solid var(--vi-n77);border-radius:10px;overflow:hidden}
.skill-goal{position:absolute;left:16px;top:16px;display:grid;gap:6px;z-index:1;max-width:58%;pointer-events:none}
.skill-goal>span,.skill-relation>span{font-size:10px;text-transform:none;color:var(--vi-n153);letter-spacing:.04em}
.skill-goal strong{font-size:13px;font-weight:500;color:var(--vi-n217);line-height:1.4}
.skill-scene{display:block;width:100%;height:214px;color:var(--vi-brand)}
.skill-scene [hidden]{display:none}
.skill-scene g{transition:transform 500ms cubic-bezier(.2,.7,.2,1)}
.skill-relation{display:grid;gap:6px;padding:12px 16px;border-top:1px solid var(--vi-n51);background:var(--vi-n23)}
.skill-relation strong{font-size:13px;font-weight:500;line-height:1.4;color:var(--vi-n217);min-height:1.4em}
.skill-composer[data-step="1"] .door-handle,.skill-composer[data-step="2"] .door-handle{transform:rotate(35deg);transform-origin:225px 101px}
.skill-composer[data-step="2"] .door-panel{transform:matrix(.6,.18,0,1,52,-23.4)}
.skill-composer[data-step="1"] .drawer-panel,.skill-composer[data-step="2"] .drawer-panel{transform:translate(-25px,20px)}
.skill-composer[data-step="1"] .cup-object{transform:translate(90px,-18px)}
.skill-composer[data-step="2"] .cup-object{transform:translate(172px,0)}
.skill-sequence{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.skill-sequence button{position:relative;display:flex;gap:10px;justify-content:center;align-items:center;font:inherit;font-size:13px;color:var(--vi-n153);background:var(--vi-n23);border:1px solid var(--vi-n77);border-radius:7px;padding:12px 7px;cursor:pointer}
.skill-sequence button[aria-pressed=true]{background:var(--vi-n51);border-color:var(--vi-brand);color:var(--vi-n245)}
.skill-sequence button:not(:last-child)::after{content:'→';position:absolute;right:-12px;font-size:12px;color:var(--vi-n118)}
.skill-step-index{font-size:10px;color:var(--vi-n153);font-variant-numeric:tabular-nums}
.skill-bank{margin-top:18px;display:flex;gap:10px;justify-content:space-between;align-items:center;flex-wrap:wrap}
.skill-bank>span{color:var(--vi-n153);font-size:10px}
.skill-bank>div{display:flex;gap:6px;flex-wrap:wrap}
.skill-bank [data-primitive]{border:1px solid var(--vi-n51);border-radius:4px;color:var(--vi-n118);padding:4px 7px;font-size:10px}
.skill-bank [data-primitive].used{border-color:var(--vi-n118);color:var(--vi-n217)}
.wa-route{background:var(--vi-n245);border-bottom:1px solid var(--vi-n217)}
.wa-route .wrap{display:flex;justify-content:space-between;gap:20px}
.wa-route a{flex:1;padding:20px 0;font-size:13px;font-weight:600;color:var(--vi-n92);text-decoration:none;display:flex;justify-content:space-between;gap:12px}
.wa-route a::after{content:'↓';font-weight:400;color:var(--vi-n153)}
.wa-route a+a{border-left:1px solid var(--vi-n217);padding-left:28px}
.wa-section-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:clamp(30px,6vw,90px);align-items:start;margin-bottom:38px}
.wa-generation-flow{display:flex;align-items:center;justify-content:center;border-block:1px solid var(--vi-n217);margin-bottom:30px;padding:18px 20px;gap:44px}
.wa-generation-flow>div{display:flex;align-items:center;gap:14px;font-size:14px;position:relative}
.wa-generation-flow>div:not(:last-child)::after{content:'→';position:absolute;right:-30px;color:var(--vi-n153)}
.wa-flow-glyph{font-family:Georgia,serif;font-size:24px;font-style:italic;color:var(--vi-n92);width:40px;height:40px;border:1px solid var(--vi-n217);background:var(--vi-n245);border-radius:10px;display:grid;place-items:center}
.hyper-evidence{border:1px solid var(--vi-n217);border-radius:12px;overflow:hidden;background:var(--vi-n255)}
.hyper-tabs{display:flex;gap:22px;padding:0 24px;background:var(--vi-n245);border-bottom:1px solid var(--vi-n217)}
.hyper-tabs button{font:inherit;font-size:13px;padding:18px 0;background:none;border:0;border-bottom:2px solid transparent;color:var(--vi-n118);cursor:pointer}
.hyper-tabs button[aria-selected=true]{border-color:var(--vi-n92);color:var(--vi-n77);font-weight:600}
.wa-page figure{margin:0}
.hyper-figure[hidden]{display:none}
.wa-figure-link{display:flex;align-items:center;justify-content:center;min-height:250px;padding:28px 24px;background:white}
.wa-figure-link img{display:block;width:100%;height:auto;max-height:460px;object-fit:contain}
.wa-page figcaption{position:static;background:none;color:var(--vi-n118);font-size:12px;line-height:1.65;display:flex;justify-content:space-between;gap:12px 28px;align-items:start;padding:14px 20px;border-top:1px solid var(--vi-n217)}
.wa-page figcaption a{color:var(--vi-n92);font-size:11px;flex-shrink:0;text-underline-offset:3px}
.wa-research-caption{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.8fr);gap:12px 50px;margin-top:20px;font-size:13px;line-height:1.7;color:var(--vi-n118)}
.wa-source{font-size:11px!important;line-height:1.7!important;color:var(--vi-n153)}
.wa-research-caption .wa-paper-link{font-size:12px}
.wa-page .wa-disc{background:var(--vi-n245)}
.wa-paper-links{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:12px;margin-top:20px}
.wa-paper-links a{color:var(--vi-n77);text-underline-offset:4px}
.wa-disc-figure{border:1px solid var(--vi-n217);border-radius:12px;overflow:hidden;background:var(--vi-n255)}
.wa-disc-figure img{display:block;width:100%;height:auto}
.wa-disc-summary{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:center;padding-block:32px}
.wa-disc-summary>div{display:flex;align-items:center;gap:22px}
.wa-disc-summary strong{font-size:clamp(38px,4vw,58px);font-weight:650;letter-spacing:-.04em;line-height:1}
.wa-disc-summary span{font-size:13px;color:var(--vi-n92)}
.wa-disc-summary p{font-size:16px;line-height:1.7;color:var(--vi-n92);max-width:62ch}
.wa-details{border-top:1px solid var(--vi-n217)}
.wa-details:last-child{border-bottom:1px solid var(--vi-n217)}
.wa-details summary{padding:19px 0;cursor:pointer;font-size:13px;font-weight:600;line-height:1.5;list-style-position:inside}
.wa-benchmark{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;padding-bottom:28px;align-items:start}
.wa-benchmark p{font-size:13px;line-height:1.8;color:var(--vi-n118);margin:0 0 12px}
.wa-benchmark table{font-size:13px;width:100%;border-collapse:collapse}
.wa-benchmark caption{text-align:left;padding-bottom:14px;color:var(--vi-n92);font-size:12px}
.wa-benchmark th,.wa-benchmark td{padding:14px 10px;border-bottom:1px solid var(--vi-n217);text-align:right}
.wa-benchmark tr>:first-child{text-align:left;padding-left:0}
.wa-benchmark td:nth-child(2){font-weight:700;color:var(--vi-n77)}
.wa-method-figure{padding:22px;background:white;margin-bottom:24px!important;border-radius:10px}
.wa-method-figure img{width:100%;height:auto;display:block}
.wa-page .wa-generalization{background:var(--vi-n23);color:var(--vi-n245)}
.wa-generalization .wa-intro{color:var(--vi-n189)}
.wa-byline{font-size:12px;line-height:1.7;color:var(--vi-n153);margin-top:18px!important}
.ig-widget{border:1px solid var(--vi-n77);border-radius:14px;overflow:hidden;background:var(--vi-n23)}
.ig-level-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid var(--vi-n77)}
.ig-level-tabs button{border:0;border-right:1px solid var(--vi-n77);background:transparent;color:var(--vi-n189);text-align:left;padding:20px 22px;font:inherit;cursor:pointer;display:grid;gap:12px;align-content:start}
.ig-level-tabs button:last-child{border-right:0}
.ig-level-tabs button[aria-selected=true]{background:var(--vi-n51);color:var(--vi-n245);box-shadow:inset 0 -3px var(--vi-brand)}
.ig-level-code{font-size:24px;font-weight:600;letter-spacing:-.02em}
.ig-level-tabs button>span:nth-child(2){font-size:13px;line-height:1.45}
.ig-level-distance{display:flex;gap:5px}
.ig-level-distance i{display:block;width:20px;height:3px;background:var(--vi-n77);border-radius:3px}
.ig-level-distance i.filled{background:var(--vi-n153)}
.ig-level-tabs [aria-selected=true] .ig-level-distance i.filled{background:var(--vi-brand)}
#ig-description{color:var(--vi-n217);font-size:15px;line-height:1.7;padding:22px 24px;min-height:70px}
.ig-videos{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:0 20px}
.ig-videos video{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:var(--vi-n11);border:1px solid var(--vi-n77);border-radius:8px}
.wa-page .ig-videos figcaption{padding:12px 0;border:0;justify-content:flex-start;align-items:baseline;gap:10px;color:var(--vi-n189);font-size:12px}
.ig-videos figcaption strong{color:var(--vi-n245);font-size:13px;white-space:nowrap}
.ig-reference-note{font-size:11px;line-height:1.7;color:var(--vi-n153);margin:4px 20px 18px!important}
.ig-takeaway{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;margin-block:32px}
.ig-takeaway h3{font-size:24px;max-width:25ch;margin:0}
.ig-takeaway p{color:var(--vi-n189);font-size:15px;line-height:1.8}
.ig-takeaway .wa-actions{margin-top:22px}
.wa-generalization .wa-details{border-color:var(--vi-n77)}
.wa-duration{float:right;color:var(--vi-n153);font-size:12px;font-weight:400}
.ig-overview video{display:block;width:100%;max-width:1040px;margin:0 auto 28px;aspect-ratio:16/9;object-fit:contain;border:1px solid var(--vi-n92);border-radius:8px;background:black}
.wa-generalization>.wrap>.wa-source{margin-top:20px!important;color:var(--vi-n153)}
.wa-generalization .wa-source a{color:var(--vi-n189);text-underline-offset:3px}
.wa-page .wa-close{background:var(--vi-n245);padding-block:54px}
.wa-close .wa-section-heading{margin-bottom:0;align-items:center}
.wa-close h2{font-size:clamp(28px,3vw,40px)}
.wa-close .wa-actions{margin-top:22px}
.wa-page :is(button,a):focus-visible{outline:3px solid var(--vi-brand);outline-offset:4px}
@media(max-width:1100px){
 .wa-hero-grid{gap:28px;grid-template-columns:1fr 1.05fr}
 .skill-composer{padding:18px}
 .skill-tasks button{font-size:12px}
 .skill-bank{gap:8px}
 .wa-section-heading{gap:36px}
 .ig-level-tabs button{padding:18px}
 .ig-videos{padding-inline:14px;gap:12px}
 .wa-page figcaption{flex-wrap:wrap;gap:8px}
}
@media(max-width:900px){
 .wa-hero-grid{grid-template-columns:1fr;gap:32px}
 .wa-hero-copy{max-width:690px}
 .wa-hero-copy .wa-lead{max-width:65ch}
 .wa-hero h1{font-size:clamp(42px,6vw,60px)}
 .skill-composer{max-width:700px;width:100%;margin:auto}
 .wa-concept-note p{width:100%;max-width:700px;margin:auto}
 .wa-concept-note{justify-content:center}
 .skill-scene{height:230px}
 .wa-disc-summary{grid-template-columns:1fr 1.2fr;gap:24px}
 .wa-generation-flow{gap:35px}
 .wa-generation-flow>div{font-size:12px;gap:9px}
 .wa-generation-flow>div:not(:last-child)::after{right:-25px}
}
@media(max-width:680px){
 .wa-page section{padding-block:40px}
 .wa-page h1{font-size:43px;line-height:1.12}
 .wa-page h2{font-size:33px;line-height:1.18}
 .wa-hero-copy .wa-lead{margin-top:20px}
 .wa-lead,.wa-intro{font-size:16px;line-height:1.8}
 .wa-body{font-size:14px}
 .wa-eyebrow{margin-bottom:17px!important;line-height:1.6}
 .wa-actions{gap:14px 20px;margin-top:24px}
 .skill-composer{padding:15px;border-radius:12px}
 .skill-tasks button{padding:10px 5px;font-size:11px}
 .skill-scene{height:190px}
 .skill-goal{left:12px;top:12px;max-width:55%}
 .skill-goal strong{font-size:12px}
 .skill-goal>span{font-size:9px}
 .skill-sequence{gap:10px}
 .skill-sequence button{font-size:12px;gap:6px;padding:11px 4px}
 .skill-relation{padding:11px 12px}
 .skill-relation strong{font-size:12px;min-height:2.8em}
 .skill-step-index{font-size:9px}
 .skill-bank{display:block}
 .skill-bank>div{margin-top:8px;gap:5px}
 .skill-bank [data-primitive]{font-size:9px;padding:4px 6px}
 .wa-concept-note p{font-size:11px}
 .wa-route .wrap{gap:13px}
 .wa-route a{font-size:11px;padding-block:16px;gap:5px}
 .wa-route a+a{padding-left:13px}
 .wa-section-heading{grid-template-columns:1fr;gap:24px;margin-bottom:26px}
 .wa-generation-flow{padding:16px 0;gap:22px;margin-bottom:22px;justify-content:space-around}
 .wa-generation-flow>div{display:grid;gap:8px;font-size:10px;text-align:center;justify-items:center;max-width:29%}
 .wa-generation-flow>div:not(:last-child)::after{right:-17px;top:13px}
 .wa-flow-glyph{width:34px;height:34px;font-size:21px;border-radius:8px}
 .hyper-tabs{padding-inline:16px;gap:20px}
 .hyper-tabs button{font-size:12px;padding-block:16px}
 .wa-figure-link{min-height:170px;padding:16px 8px}
 .wa-page figcaption{font-size:11px;padding:12px 14px}
 .wa-research-caption{grid-template-columns:1fr;gap:12px;font-size:12px;margin-top:16px}
 .wa-source{font-size:10px!important}
 .wa-disc-summary{grid-template-columns:1fr;gap:16px;padding-block:26px}
 .wa-disc-summary strong{font-size:44px}
 .wa-disc-summary p{font-size:14px}
 .wa-benchmark{grid-template-columns:1fr;gap:20px}
 .wa-benchmark th,.wa-benchmark td{font-size:12px}
 .wa-details summary{font-size:12px}
 .wa-method-figure{padding:10px}
 .ig-level-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}
 .ig-level-tabs button{padding:15px;gap:9px;border-bottom:1px solid var(--vi-n77)}
 .ig-level-tabs button:nth-child(2){border-right:0}
 .ig-level-tabs button:nth-child(n+3){border-bottom:0}
 .ig-level-code{font-size:21px}
 .ig-level-tabs button>span:nth-child(2){font-size:12px}
 #ig-description{padding:18px 16px;font-size:13px;min-height:100px}
 .ig-videos{grid-template-columns:1fr;padding:0 12px;gap:6px}
 .wa-page .ig-videos figcaption{font-size:11px;padding:10px 0 12px}
 .ig-reference-note{font-size:10px;margin:0 12px 16px!important}
 .ig-takeaway{grid-template-columns:1fr;gap:18px;margin-block:28px}
 .ig-takeaway h3{font-size:24px}
 .ig-takeaway p{font-size:14px}
 .wa-page .wa-close{padding-block:40px}
}
@media(prefers-reduced-motion:reduce){.skill-scene g,.skill-scene path{transition:none!important}}