/* Prism Brief: high-key Swiss kinetics, translucent colour planes, ribbon navigation and registration marks. */
:root{--cyan:#00b8d9;--rasp:#ed3276;--yellow:#ffd541;--black:#111;--snow:#fff;--mist:#f3f5f5;--line:rgba(17,17,17,.22);--ease:cubic-bezier(.22,1,.36,1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--black);background:var(--snow);font:400 17px/1.55 "Instrument Sans",sans-serif;overflow-x:hidden}button,input,select,textarea{font:inherit}button,a{color:inherit}a{text-decoration:none}img{display:block;width:100%;height:auto}.reg{margin:0;font:400 .66rem "Fragment Mono",monospace;letter-spacing:.06em;text-transform:uppercase}.ribbon-header{position:fixed;z-index:100;inset:0 0 auto;display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;min-height:68px;background:rgba(255,255,255,.94);border-bottom:1px solid var(--black);backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:.7rem;height:68px;padding:0 1.2rem;border-right:1px solid var(--black);font:600 1.1rem "Space Grotesk",sans-serif}.brand 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.85fr;min-height:790px;padding-top:68px}.prism-hero figure{position:relative;margin:0;background:var(--mist)}.prism-hero figure img{height:100%;min-height:722px;object-fit:cover}.prism-hero figcaption{position:absolute;left:1.5rem;bottom:1.5rem;display:flex;align-items:center;gap:.8rem;padding:.7rem 1rem;background:var(--snow);font:400 .62rem "Fragment Mono",monospace}.prism-hero figcaption i{width:12px;height:12px;background:var(--black)}.hero-copy{display:flex;justify-content:center;flex-direction:column;padding:6vw}.hero-copy h1,.signal-mixer h2,.definition-room h2,.lineage h2,.governance h2,.brief-output h2,.question-ribbon h2,.contact-prism h2{margin:1rem 0;font:600 clamp(3.6rem,6.4vw,7.5rem)/.86 "Space Grotesk",sans-serif;letter-spacing:-.07em}.hero-copy>p:not(.reg){max-width:640px}.hero-actions{display:flex;gap:.6rem;margin:2rem 0}.hero-actions a,.hero-actions button{min-height:52px;padding:0 1rem;border:1px solid var(--black);background:var(--snow);font-weight:700}.hero-actions a{background:var(--yellow)}.hero-copy dl{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--black)}.hero-copy dl div{padding:1rem 1rem 0 0}.hero-copy dt{font:400 .62rem "Fragment Mono",monospace;text-transform:uppercase}.hero-copy dd{margin:.3rem 0 0;font-weight:600}.decision-strip{display:flex;align-items:center;gap:1rem;padding:1.2rem 4vw;background:var(--black);color:var(--snow);font-size:.82rem}.decision-strip span{color:var(--cyan);font:400 .62rem "Fragment Mono",monospace}.decision-strip i{flex:1;height:1px;background:#555}.signal-mixer{padding:8rem 4vw;background:var(--snow)}.signal-mixer>header{display:grid;grid-template-columns:.35fr 1.1fr .55fr;gap:3rem;align-items:end;max-width:1360px;margin:auto}.signal-mixer>header h2{margin:0}.mixer-stage{display:grid;grid-template-columns:.32fr 1fr .8fr;max-width:1360px;margin:4rem auto 0;border:1px solid var(--black)}.mixer-controls{display:grid}.mixer-controls button{display:grid;grid-template-columns:42px 1fr;align-items:center;min-height:150px;padding:1rem;border:0;border-bottom:1px solid var(--black);background:var(--snow);text-align:left}.mixer-controls button.active{background:var(--yellow)}.mixer-controls b{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid var(--black);font:500 .75rem "Fragment Mono",monospace}.mixer-controls span{font-weight:700}.mixer-stage figure{position:relative;margin:0;border-left:1px solid var(--black);border-right:1px solid var(--black)}.mixer-stage figure img{height:100%;min-height:650px;object-fit:cover}.mixer-stage figcaption{position:absolute;left:1rem;bottom:1rem;display:flex;align-items:center;gap:.8rem;padding:.7rem;background:var(--snow);font:400 .62rem "Fragment Mono",monospace}.mixer-stage figcaption i{width:12px;height:12px;background:var(--rasp)}.mixer-stage article{display:flex;justify-content:center;flex-direction:column;padding:3rem}.mixer-stage article h3{margin:1rem 0;font:600 clamp(2.5rem,3.5vw,4.2rem)/.92 "Space Grotesk",sans-serif}.mixer-stage dl{margin:2rem 0}.mixer-stage dl div{padding:.8rem 0;border-top:1px solid var(--line)}.mixer-stage dt{font:400 .62rem "Fragment Mono",monospace;text-transform:uppercase}.mixer-stage dd{margin:.3rem 0 0;font-weight:600}.mixer-stage article>a{width:max-content;border-bottom:2px solid var(--rasp);font-weight:700}.definition-room{display:grid;grid-template-columns:1fr .9fr;background:var(--cyan)}.definition-copy{padding:7rem 5vw}.definition-copy>p:not(.reg){max-width:650px}.definition-stack{display:grid;grid-template-columns:repeat(3,1fr);margin-top:3rem;border-top:1px solid var(--black)}.definition-stack article{padding:1.3rem;border-right:1px solid var(--black)}.definition-stack span{font:400 .62rem "Fragment Mono",monospace}.definition-stack h3{font:600 1.35rem "Space Grotesk",sans-serif}.definition-room figure{position:relative;margin:0;padding:3rem;background:var(--mist)}.definition-room figure img{height:100%;min-height:700px;object-fit:cover}.definition-room figcaption{position:absolute;right:3rem;bottom:3rem;padding:.7rem;background:var(--yellow);font:400 .62rem "Fragment Mono",monospace}.lineage{display:grid;grid-template-columns:1.1fr .9fr;background:var(--snow)}.lineage figure{margin:0}.lineage figure img{height:100%;min-height:720px;object-fit:cover}.lineage>div{padding:7rem 5vw}.lineage ol{margin:2rem 0 0;padding:0;list-style:none}.lineage li{display:grid;grid-template-columns:90px 1fr;padding:1rem 0;border-top:1px solid var(--black)}.lineage li span{font:400 .62rem "Fragment Mono",monospace;color:var(--rasp)}.evidence-trio{display:grid;grid-template-columns:repeat(3,1fr)}.evidence-trio article{min-width:0}.evidence-trio figure{margin:0;padding:1.2rem}.evidence-trio figure img{aspect-ratio:4/3;object-fit:cover}.evidence-trio article>div{padding:2rem;min-height:270px}.evidence-trio .cyan{background:var(--cyan)}.evidence-trio 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0;border-top:1px solid #555}.brief-output a{display:inline-block;margin-top:1rem;border-bottom:2px solid var(--yellow)}.brief-output figure{margin:0;padding:3rem;background:var(--yellow)}.brief-output figure img{height:100%;min-height:700px;object-fit:cover}.question-ribbon{display:grid;grid-template-columns:.7fr 1.3fr;padding:8rem 4vw;background:var(--snow)}.question-ribbon>header{padding-right:4vw}.question-ribbon label{display:flex;gap:.7rem;margin-top:2rem;padding:1rem;border:1px solid var(--black)}.question-ribbon input{width:100%;border:0;outline:0}.question-ribbon>div{border-top:1px solid var(--black)}.question-ribbon details{border-bottom:1px solid var(--black)}.question-ribbon summary{display:grid;grid-template-columns:55px 1fr 20px;align-items:center;min-height:88px;list-style:none;cursor:pointer;font-weight:650}.question-ribbon summary::-webkit-details-marker{display:none}.question-ribbon summary span{font:400 .62rem "Fragment 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4vw;background:var(--black);color:var(--snow)}.footer-brand{display:flex;align-items:center;gap:.7rem;font:600 1.1rem "Space Grotesk",sans-serif}.footer-brand img{width:36px;height:36px}.footer-brand+p{margin:0}footer nav{display:flex;gap:1rem}footer nav a{border-bottom:1px solid}.cookie-dock{position:fixed;z-index:120;right:66px;bottom:8px;display:flex;gap:.35rem;padding:.35rem;background:var(--snow);border:1px solid var(--black)}.cookie-dock button,.cookie-dock a{padding:.55rem .65rem;border:0;background:var(--yellow);font:400 .6rem "Fragment Mono",monospace}.reveal{opacity:1;transform:none}@media(prefers-reduced-motion:no-preference){.reveal{opacity:0;transform:translateY(20px);transition:.48s var(--ease)}.reveal.visible{opacity:1;transform:none}}@media(max-width:900px){.ribbon-header{grid-template-columns:1fr auto auto}.ribbon-header>p{display:none}.index-toggle{display:block;width:54px;height:54px;border:0;background:var(--cyan)}.edge-index{top:68px;right:0;left:0;bottom:auto;display:none;width:100%;height:auto;flex-direction:row}.edge-index.open{display:grid;grid-template-columns:repeat(5,1fr)}.edge-index button,.edge-index a{min-height:60px;writing-mode:initial}.edge-index a{margin:0}main,footer{margin-right:0}.prism-hero,.signal-mixer>header,.mixer-stage,.definition-room,.lineage,.governance>header,.brief-output,.question-ribbon,.contact-prism{grid-template-columns:1fr}.prism-hero{padding-top:68px}.prism-hero figure img{min-height:auto;aspect-ratio:4/3}.hero-copy,.signal-mixer,.governance,.question-ribbon{padding:5rem 1rem}.hero-copy h1{font-size:4rem}.decision-strip{overflow:auto;padding:1rem}.decision-strip i{min-width:40px}.signal-mixer>header{gap:1rem}.mixer-controls{grid-template-columns:repeat(3,1fr)}.mixer-controls button{min-height:88px}.mixer-stage figure 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