/* STOKES° / molecular photonics — cinematic single-page laboratory */
:root{
  --void:#050608;
  --ink:#f0f1ea;
  --muted:#b0b6b2;
  --dim:#7b827e;
  --line:rgba(240,241,234,.22);
  --hair:rgba(240,241,234,.12);
  --accent:#58ffc9;
  --uv:#8970ff;
  --sans:"DM Sans",Arial,sans-serif;
  --serif:"Instrument Serif",Georgia,serif;
  --mono:"Space Mono",monospace;
  --pad:clamp(1.15rem,3.3vw,3.75rem);
  --ease:cubic-bezier(.22,.68,0,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--void);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--void);color:var(--ink);font-family:var(--sans);font-weight:400;line-height:1.5;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body.is-loading,body.intro-running{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
svg,img{display:block;max-width:100%}
::selection{background:var(--accent);color:var(--void)}
:focus-visible{outline:1px solid var(--accent);outline-offset:5px}
.mono{font-family:var(--mono);text-transform:uppercase;letter-spacing:.08em;font-size:.66rem;line-height:1.5}
.skip-link{position:fixed;left:1rem;top:1rem;z-index:1000;background:var(--accent);color:var(--void);padding:.8rem 1rem;transform:translateY(-200%);transition:transform .25s}
.skip-link:focus{transform:none}

/* Opening film: black → one photon → molecular ignition → interface. */
.opening{--light-x:76vw;--light-y:24vh;--light-scale:.02;--light-opacity:0;--shade-opacity:1;position:fixed;inset:0;z-index:900;overflow:hidden;color:var(--ink);pointer-events:auto;transition:visibility 1.2s;visibility:visible}
.opening.is-done{visibility:hidden;pointer-events:none;transition-delay:1.2s}
.opening-shade{position:absolute;inset:0;background:#000;opacity:var(--shade-opacity);will-change:opacity}
.approach-light{position:absolute;left:var(--light-x);top:var(--light-y);width:1px;height:1px;opacity:var(--light-opacity);transform:scale(var(--light-scale));will-change:left,top,transform,opacity;mix-blend-mode:screen}
.approach-light i{position:absolute;left:50%;top:50%;display:block;border-radius:50%;transform:translate(-50%,-50%)}
.photon-core{width:1.2rem;height:1.2rem;background:#fff;box-shadow:0 0 12px 3px #fff,0 0 42px 14px var(--accent),0 0 110px 34px var(--uv)}
.photon-halo{width:12rem;height:12rem;background:radial-gradient(circle,rgba(255,255,255,.75),rgba(88,255,201,.3) 10%,rgba(137,112,255,.12) 34%,transparent 70%);filter:blur(4px)}
.photon-ring{width:4rem;height:4rem;border:1px solid rgba(255,255,255,.72);box-shadow:0 0 22px var(--accent),inset 0 0 22px var(--accent)}
.photon-trail{width:32rem;height:.14rem;margin-left:15rem;background:linear-gradient(90deg,transparent,rgba(137,112,255,.08) 35%,rgba(88,255,201,.6),#fff);filter:blur(1px);transform:translate(-100%,-50%) rotate(-8deg)!important;transform-origin:right center!important;border-radius:0!important}
.contact-wave{position:absolute;left:50%;top:50%;width:1px;height:1px;opacity:0;pointer-events:none}
.contact-wave i{position:absolute;left:0;top:0;width:10rem;height:10rem;margin:-5rem;border:1px solid color-mix(in srgb,var(--accent) 72%,white);border-radius:50%;opacity:0;box-shadow:0 0 25px color-mix(in srgb,var(--accent) 30%,transparent)}
.intro-contact .contact-wave{opacity:1}
.intro-contact .contact-wave i{animation:contact-ring 2.4s var(--ease) forwards}
.intro-contact .contact-wave i:nth-child(2){animation-delay:.18s}.intro-contact .contact-wave i:nth-child(3){animation-delay:.36s}
@keyframes contact-ring{0%{transform:scale(.05);opacity:.9}100%{transform:scale(9);opacity:0}}
.opening-caption{position:absolute;left:50%;top:calc(50% + 9rem);width:min(34rem,80vw);transform:translate(-50%,2rem);text-align:center;opacity:0;transition:opacity 1.1s var(--ease),transform 1.1s var(--ease);text-transform:uppercase}
.opening-caption span{display:block;color:var(--muted);font:400 .56rem var(--mono);letter-spacing:.18em;margin-bottom:.8rem}
.opening-caption b{font:400 clamp(1.4rem,2.2vw,2.2rem) var(--serif);letter-spacing:.01em}
.intro-awake .opening-caption{opacity:1;transform:translate(-50%,0)}
.intro-reveal .opening-caption{opacity:0;transform:translate(-50%,-1rem);transition-duration:.6s}
.skip-opening{position:absolute;right:var(--pad);bottom:2.2rem;border:1px solid rgba(240,241,234,.18);background:rgba(5,6,8,.35);color:rgba(240,241,234,.72);font:400 .56rem var(--mono);letter-spacing:.1em;text-transform:uppercase;padding:.7rem .9rem;cursor:pointer;opacity:0;transform:translateY(.5rem);transition:opacity .6s,transform .6s,color .3s,border-color .3s,background .3s}
.intro-light .skip-opening{opacity:1;transform:none}.skip-opening:hover{color:var(--ink);border-color:var(--accent);background:rgba(5,6,8,.7)}.skip-opening span{color:var(--accent);margin-left:.4rem}

.intro-running .stage{background:#000}
.intro-running .stage-light,.intro-running .stage-noise,.intro-running .stage-vignette,.intro-running .uv-beam{opacity:0}
.site-header,.chapter-rail,.hero-meta,.hero-title,.hero-bottom,.orbit-copy,.demo-banner{transition:opacity 1.15s var(--ease),transform 1.15s var(--ease)}
main{transition:opacity 1.2s var(--ease)}
body:not(.story-complete) main,body:not(.story-complete) .demo-banner,body:not(.story-complete) .cursor{opacity:0}
body:not(.story-complete) .site-header,body:not(.story-complete) .chapter-rail,body:not(.story-complete) .hero-meta,body:not(.story-complete) .hero-title,body:not(.story-complete) .hero-bottom,body:not(.story-complete) .orbit-copy{opacity:0}
body:not(.story-complete) .site-header{transform:translateY(-1.5rem)}
body:not(.story-complete) .hero-title{transform:translateY(calc(-50% + 2.5rem))}
body:not(.story-complete) .hero-bottom{transform:translateY(2rem)}
.story-complete .hero-title{transition-delay:.18s}.story-complete .hero-bottom{transition-delay:.38s}.story-complete .hero-meta,.story-complete .orbit-copy{transition-delay:.55s}

/* fixed world */
.stage{position:fixed;inset:0;z-index:0;overflow:hidden;background:radial-gradient(circle at 58% 44%,#11151a 0,#07090c 37%,#030405 76%)}
#lab{position:absolute;inset:0;width:100%;height:100%;opacity:0;transition:opacity 1.4s ease,filter 1.2s var(--ease)}
.lab-live #lab{opacity:1}
.lab-live body[data-scene="1"] #lab{filter:brightness(.78) saturate(.92)}
.lab-live body[data-scene="2"] #lab{opacity:.62;filter:brightness(.68) saturate(.84)}
.lab-live body[data-scene="3"] #lab{filter:brightness(.78) saturate(.9)}
.lab-live body[data-scene="4"] #lab{opacity:.48;filter:brightness(.65) saturate(.75)}
.stage-still{position:absolute;inset:0;display:grid;place-items:center;transition:opacity .8s ease}
.lab-live .stage-still{opacity:0}
.stage-still svg{width:min(56vw,710px);filter:drop-shadow(0 0 25px color-mix(in srgb,var(--accent) 40%,transparent));animation:still-float 12s ease-in-out infinite}
.still-orbits ellipse{fill:none;stroke:rgba(88,255,201,.13);stroke-width:1}
.still-molecule line{fill:none;stroke:var(--accent);stroke-width:3;stroke-linecap:round}
.still-molecule circle{fill:var(--void);stroke:#ff665f;stroke-width:4;filter:drop-shadow(0 0 8px #ff665f)}
@keyframes still-float{50%{transform:translateY(2%) rotate(2deg)}}
.stage-light{position:absolute;inset:-20%;background:conic-gradient(from 210deg at 55% 47%,transparent 0 20%,rgba(137,112,255,.06) 28%,transparent 36% 65%,rgba(88,255,201,.045) 72%,transparent 82%);animation:light-turn 24s linear infinite;pointer-events:none}
@keyframes light-turn{to{transform:rotate(360deg)}}
.uv-beam{position:absolute;width:24rem;height:24rem;left:-12rem;top:-12rem;border-radius:50%;background:radial-gradient(circle,rgba(137,112,255,.07),rgba(137,112,255,.018) 35%,transparent 70%);mix-blend-mode:screen;opacity:0;pointer-events:none;transition:opacity .55s;will-change:transform}
.pointer-active .uv-beam{opacity:.42}
.stage-noise{position:absolute;inset:0;opacity:.17;mix-blend-mode:overlay;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E")}
.stage-vignette{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at 50% 42%,transparent 42%,rgba(2,3,4,.74) 100%),linear-gradient(90deg,rgba(2,3,4,.3),transparent 25% 75%,rgba(2,3,4,.3))}
.annotations{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.annot{transition:opacity .25s}
.annot line{stroke:rgba(240,241,234,.26);stroke-width:1;stroke-dasharray:2 4}
.annot-dot{fill:var(--accent);filter:drop-shadow(0 0 6px var(--accent))}
.annot-ring{fill:none;stroke:rgba(88,255,201,.25)}
.annot-code{fill:var(--ink);font:700 9px var(--mono);letter-spacing:.1em}
.annot-label{fill:var(--muted);font:400 8px var(--mono);letter-spacing:.06em;text-transform:uppercase}

.cursor{position:fixed;z-index:500;left:0;top:0;width:1.15rem;height:1.15rem;border:1px solid rgba(240,241,234,.5);border-radius:50%;display:grid;place-items:center;pointer-events:none;opacity:0;transform:translate(-50%,-50%);transition:width .25s,height .25s,background .25s,border-color .25s,opacity .25s;mix-blend-mode:difference}
.cursor::after{content:"";width:2px;height:2px;border-radius:50%;background:var(--ink)}
.pointer-active .cursor{opacity:1}
.cursor.is-hover{width:3.5rem;height:3.5rem;background:var(--ink);color:#000;border-color:var(--ink)}

/* global chrome */
.site-header{position:fixed;z-index:200;left:0;right:0;top:0;height:7rem;padding:1.55rem var(--pad);display:grid;grid-template-columns:1fr auto 1fr;align-items:start;color:#f0f1ea;background:linear-gradient(180deg,rgba(5,6,8,.72),rgba(5,6,8,0));border-bottom:1px solid transparent;transition:height .45s var(--ease),background .45s,border-color .45s,transform .45s}
.is-scrolled .site-header{height:5.25rem;background:rgba(5,6,8,.66);backdrop-filter:blur(18px);border-color:var(--hair)}
.brand>span{display:block;font-size:1.08rem;font-weight:600;letter-spacing:-.04em;line-height:1}.brand sup,.footer-brand sup{color:var(--accent);font:400 .65em var(--serif)}
.brand small{display:block;margin-top:.45rem;color:var(--muted);font:400 .5rem var(--mono);letter-spacing:.13em;text-transform:uppercase}
.main-nav{display:flex;gap:clamp(1.25rem,2.1vw,2.5rem);font:400 .62rem var(--mono);letter-spacing:.08em;text-transform:uppercase}
.main-nav a,.contact-link{position:relative;padding-bottom:.4rem}
.main-nav a::after,.contact-link::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--accent);transition:right .35s var(--ease)}
.main-nav a:hover::after,.contact-link:hover::after{right:0}
.main-nav a.is-active{color:var(--accent)}
.main-nav a.is-active::after{right:0}
.header-tools{justify-self:end;display:flex;gap:2rem;align-items:center;font:400 .58rem var(--mono);text-transform:uppercase;letter-spacing:.08em}
.lab-status{color:var(--muted)}
.lab-status i{display:inline-block;width:.4rem;height:.4rem;background:var(--accent);border-radius:50%;margin-right:.45rem;box-shadow:0 0 9px var(--accent);animation:status 2s ease infinite}
@keyframes status{50%{opacity:.35}}
.contact-link span{color:var(--accent);margin-left:.35rem}
.chapter-rail{position:fixed;right:var(--pad);top:50%;z-index:70;transform:translateY(-50%);height:13rem;display:flex;flex-direction:column;align-items:flex-end;gap:.75rem;color:var(--muted);font:400 .54rem var(--mono);letter-spacing:.08em}
.chapter-current{color:var(--ink)}
.chapter-label{position:absolute;right:1rem;top:1.8rem;color:var(--ink);font-size:.5rem;text-transform:uppercase;white-space:nowrap;writing-mode:vertical-rl;transform:rotate(180deg);transition:opacity .3s}
body[data-scene="0"] .chapter-label{opacity:0}
.chapter-line{height:100%;width:1px;background:var(--line);position:relative;overflow:hidden}
.chapter-line i{position:absolute;left:0;top:0;width:100%;height:0;background:var(--accent);box-shadow:0 0 7px var(--accent)}
.demo-banner{position:fixed;z-index:160;bottom:0;left:0;right:0;padding:.62rem 1rem;text-align:center;background:rgba(5,6,8,.9);border-top:1px solid var(--line);backdrop-filter:blur(14px);color:var(--muted);font:400 .56rem var(--mono);letter-spacing:.05em}
.demo-banner a{color:var(--ink);margin-left:.6rem}.demo-banner a:hover{color:var(--accent)}
.framed .demo-banner{display:none}

/* common scenes */
main{position:relative;z-index:10}
.scene{position:relative;min-height:120vh;padding:9rem var(--pad) 8rem;isolation:isolate}
.section-index{position:absolute;left:var(--pad);top:9rem;color:var(--muted);display:flex;align-items:center;gap:1rem}
.section-index span{color:var(--accent)}
.section-index::after{content:"";display:block;width:3rem;height:1px;background:var(--line)}
.eyebrow{font:400 .63rem var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--accent);margin-bottom:1.4rem;text-shadow:0 0 .7rem var(--void),0 0 1.6rem var(--void)}
.glass{background:linear-gradient(125deg,rgba(255,255,255,.075),rgba(255,255,255,.025));border:1px solid var(--line);backdrop-filter:blur(20px);box-shadow:0 1.5rem 6rem rgba(0,0,0,.32)}
.reveal{opacity:0;transform:translateY(3rem);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* 00 hero */
.hero{height:118svh;min-height:50rem;padding-top:9rem}
.hero::before{content:"";position:absolute;top:7rem;bottom:7rem;left:50%;width:1px;background:linear-gradient(transparent,var(--hair) 15% 85%,transparent)}
.hero-meta{display:flex;justify-content:space-between;color:var(--muted)}
.hero-title{position:absolute;left:var(--pad);right:var(--pad);top:43svh;transform:translateY(-50%);display:flex;justify-content:space-between;align-items:center;font-size:clamp(7rem,18vw,20rem);font-weight:500;line-height:.75;letter-spacing:-.095em;white-space:nowrap;pointer-events:none}
.hero-title span:last-child{text-align:right}
.hero-title sup{font:400 .25em var(--serif);color:var(--accent);vertical-align:top;margin-left:.05em;letter-spacing:0}
.hero-bottom{position:absolute;left:var(--pad);right:var(--pad);top:clamp(29rem,75svh,47rem);display:grid;grid-template-columns:1fr 1fr 1fr;gap:3rem;align-items:end}
.hero-thesis{max-width:21rem;font-size:clamp(1.15rem,1.7vw,1.65rem);line-height:1.2;letter-spacing:-.03em}
.hero-thesis em{font-family:var(--serif);font-weight:400;color:var(--accent)}
.scroll-cue{justify-self:center;display:flex;flex-direction:column;align-items:center;gap:1.2rem;color:var(--muted)}
.scroll-cue i{display:block;width:1px;height:4.5rem;background:linear-gradient(var(--accent) 0 35%,var(--line) 35%);background-size:100% 200%;animation:scroll-line 2s ease infinite}
@keyframes scroll-line{to{background-position:0 -200%}}
.hero-readout{justify-self:end;display:grid;gap:.45rem;min-width:11rem;color:var(--muted)}
.hero-readout div{display:flex;justify-content:space-between;border-bottom:1px solid var(--hair);padding-bottom:.4rem}
.hero-readout dd{color:var(--ink)}
.hero-readout b{color:var(--accent);font-weight:400}
.orbit-copy{position:absolute;left:50%;top:22svh;transform:translateX(-50%);color:var(--muted);white-space:nowrap}

/* 01 principle */
.principle{min-height:145svh;display:grid;grid-template-columns:minmax(18rem,.72fr) minmax(28rem,1.28fr);gap:clamp(2rem,7vw,8rem);align-items:start}
.principle-copy{grid-column:2;position:sticky;top:19svh;width:min(47rem,100%);margin-right:6vw;padding-top:4rem}
.principle-copy h2,.platform-intro h2,.library-header h2,.contact-copy h2{font-size:clamp(4.5rem,8vw,9.5rem);font-weight:400;line-height:.82;letter-spacing:-.075em;text-shadow:0 0 1.4rem var(--void),0 0 3.5rem var(--void),0 0 7rem rgba(5,6,8,.85)}
.principle-copy h2 em,.platform-intro h2 em,.library-header h2 em,.contact-copy h2 em{font-family:var(--serif);font-weight:400;color:var(--accent)}
.principle-copy>p:last-child,.platform-intro>p:last-child,.library-header>p:last-child,.hero-thesis{text-shadow:0 0 .9rem var(--void),0 0 2.2rem var(--void)}
.principle-copy>p:last-child{width:min(26rem,75%);margin:2.2rem 0 0 auto;color:var(--muted);font-size:1.1rem;line-height:1.6}
.energy-card{grid-column:1;grid-row:1;position:sticky;top:max(15rem,calc(100svh - 27rem));width:min(23rem,100%);padding:1.5rem;align-self:start}
.energy-state{display:grid;grid-template-columns:2.5rem 1fr auto;align-items:center;gap:1rem;font-family:var(--mono)}
.energy-state span{font-size:.75rem;color:var(--accent)}
.energy-state i{height:1px;background:var(--line)}
.energy-state small{font-size:.5rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.energy-pulse{height:6rem;width:1px;margin:.6rem 0 .6rem 1.2rem;background:linear-gradient(var(--uv),var(--accent));box-shadow:0 0 10px var(--uv);position:relative}
.energy-pulse::after{content:"↑";position:absolute;left:-.3rem;top:50%;color:var(--ink);font-size:.7rem}
.energy-card>p{color:var(--muted);border-top:1px solid var(--hair);padding-top:1rem;margin-top:1.2rem}
.science-cite{display:block;color:var(--accent);margin-top:1rem;line-height:1.5}.science-cite:hover{text-decoration:underline;text-underline-offset:.25rem}

/* 02 shift */
.shift{--absorb-p:0;--relax-p:0;--emit-p:0;--resolve-p:0;--runner-x:74;--runner-y:-105;--runner-scale:1;--runner-opacity:0;min-height:150svh;display:block;overflow:hidden}
.shift::before{content:"";position:absolute;z-index:-1;inset:8% 36% 31% 0;background:radial-gradient(ellipse at 25% 52%,rgba(3,4,5,.96) 0,rgba(3,4,5,.78) 44%,transparent 76%);pointer-events:none}
.shift-heading{position:sticky;z-index:2;top:15svh;width:min(60rem,62vw);margin-right:auto;text-align:left;padding-left:5vw}
.shift-heading>span{color:var(--muted)}
.shift-heading h2{font-size:clamp(9rem,20vw,22rem);font-weight:300;letter-spacing:-.11em;line-height:.75;color:rgba(240,241,234,.94);text-shadow:0 0 5rem rgba(0,0,0,.9),0 0 2.5rem color-mix(in srgb,var(--accent) 8%,transparent)}
.shift-heading h2 b{font-weight:300}.shift-heading h2 small{font:400 .12em var(--mono);letter-spacing:0;color:var(--accent);-webkit-text-stroke:0;margin-left:.08em}
.shift-heading p{font:400 clamp(1.1rem,2vw,2rem) var(--mono);letter-spacing:.35em;margin-top:2rem}
.spectrum-story{position:sticky;z-index:3;top:max(18rem,calc(100svh - 30rem));width:calc(100% - (var(--pad) * 2));height:28rem;margin:2rem var(--pad) 0;padding-top:2rem;background:linear-gradient(90deg,rgba(5,6,8,.96),rgba(5,6,8,.5) 52%,rgba(5,6,8,.9));border-top:1px solid var(--line);mask-image:linear-gradient(90deg,transparent,#000 3% 97%,transparent)}
.spectrum-context{position:absolute;z-index:2;left:1.5rem;right:1.5rem;top:1.2rem;display:flex;justify-content:space-between;color:var(--dim)}
.spectrum-story svg{position:absolute;left:1.5rem;right:1.5rem;top:3.4rem;width:calc(100% - 3rem);height:17.5rem;overflow:visible}
.story-runner{position:absolute;z-index:5;left:calc(var(--runner-x) * 1%);top:calc(var(--runner-y) * 1%);width:1rem;height:1rem;margin:-.5rem 0 0 -.5rem;border-radius:50%;background:#fff;opacity:var(--runner-opacity);transform:scale(var(--runner-scale));box-shadow:0 0 .5rem #fff,0 0 1.5rem var(--accent),0 0 4rem color-mix(in srgb,var(--accent) 42%,transparent);transition:opacity .1s linear;will-change:left,top,transform,opacity}
.story-runner::before,.story-runner::after{content:"";position:absolute;inset:-.65rem;border:1px solid color-mix(in srgb,var(--accent) 58%,transparent);border-radius:50%;animation:runner-breathe 1.5s ease-in-out infinite}
.story-runner::after{inset:-1.45rem;border-color:color-mix(in srgb,var(--uv) 34%,transparent);animation-delay:-.75s}
@keyframes runner-breathe{50%{transform:scale(1.35);opacity:.25}}
.spectrum-axis,.spectrum-curve,.spectrum-loss,.peak-line{fill:none;vector-effect:non-scaling-stroke}
.spectrum-axis{stroke:rgba(240,241,234,.2);stroke-width:1;stroke-dasharray:1 8;stroke-linecap:round}
.spectrum-curve{stroke-width:3.25;stroke-dasharray:1;filter:drop-shadow(0 0 8px currentColor)}
.curve-absorb{stroke-dashoffset:calc(1 - var(--absorb-p))}
.curve-emit{stroke-dashoffset:calc(1 - var(--emit-p))}
.spectrum-loss{stroke-width:1.25;stroke-dasharray:.04 .035;stroke-dashoffset:calc(1 - var(--relax-p));opacity:var(--relax-p)}
.peak-line{stroke:rgba(240,241,234,.18);stroke-width:1;stroke-dasharray:2 6}
.peak-absorb{opacity:var(--absorb-p)}.peak-emit{opacity:var(--emit-p)}
.story-photon{fill:#fff;transform-box:fill-box;transform-origin:center;filter:drop-shadow(0 0 4px #fff) drop-shadow(0 0 12px currentColor)}
.photon-absorb{color:var(--uv);opacity:var(--absorb-p);transform:scale(var(--absorb-p))}
.photon-relax{color:var(--accent);opacity:var(--relax-p);transform:scale(var(--relax-p))}
.photon-emit{color:var(--accent);opacity:var(--emit-p);transform:scale(var(--emit-p))}
.spectrum-beats{position:absolute;left:1.5rem;right:1.5rem;bottom:.5rem;display:grid;grid-template-columns:1fr 1fr 1fr;gap:2rem;border-top:1px solid var(--hair);padding-top:1rem}
.spectrum-beats .beat{display:grid;grid-template-columns:auto 1fr;gap:.2rem 1rem;align-items:baseline;color:var(--muted);transform:translateY(.65rem)}
.spectrum-beats .beat span{color:var(--ink)}.spectrum-beats .beat b{justify-self:end;color:var(--ink);font-weight:400;font-size:.74rem}.spectrum-beats .beat small{grid-column:1/-1;color:var(--dim);font-size:.48rem;letter-spacing:.08em}
.beat-absorb{opacity:var(--absorb-p)}.beat-relax{opacity:var(--relax-p)}.beat-emit{opacity:var(--emit-p)}
.spectrum-beats .beat-absorb{transform:translateY(calc((1 - var(--absorb-p)) * .65rem))}.spectrum-beats .beat-relax{transform:translateY(calc((1 - var(--relax-p)) * .65rem))}.spectrum-beats .beat-emit{transform:translateY(calc((1 - var(--emit-p)) * .65rem))}

/* 03 platform */
.platform{min-height:150svh;padding-top:12.5rem;display:grid;grid-template-columns:minmax(28rem,1.15fr) minmax(25rem,.85fr);gap:clamp(2rem,6vw,7rem);align-items:start}
.platform-intro{position:sticky;top:19svh;width:min(44rem,100%);margin-left:7vw}
.platform-intro>p:last-child{max-width:25rem;margin:2.5rem 0 0 auto;color:var(--muted);font-size:1.05rem;line-height:1.65}
.wavelength-lab{position:sticky;top:max(14rem,calc(100svh - 31rem));right:auto;width:min(37rem,100%);padding:1.5rem 1.5rem 1.25rem;align-self:start}
.lab-top{display:flex;justify-content:space-between;color:var(--muted);border-bottom:1px solid var(--hair);padding-bottom:1.1rem}
.lab-top b{color:var(--accent);font-weight:400}
.wavelength-lab output{display:block;font-size:clamp(5rem,9vw,9rem);font-weight:300;line-height:1;letter-spacing:-.08em;margin:2rem 0;color:var(--accent);text-shadow:0 0 45px color-mix(in srgb,var(--accent) 35%,transparent)}
.wavelength-lab output small{font:400 .12em var(--mono);letter-spacing:.05em;margin-right:.28em;color:var(--ink)}
.wavelength-lab output b{font-weight:300}
#phControl{display:block;width:100%;height:1.2rem;appearance:none;background:transparent;cursor:ew-resize}
#phControl::-webkit-slider-runnable-track{height:3px;background:linear-gradient(90deg,#5b416e,#6553a6 25%,#4286b8 54%,#58ffc9 72%);border-radius:2px;box-shadow:0 0 14px color-mix(in srgb,var(--accent) 35%,transparent)}
#phControl::-webkit-slider-thumb{appearance:none;width:1.2rem;height:1.2rem;border-radius:50%;background:var(--ink);border:4px solid var(--accent);margin-top:-.48rem;box-shadow:0 0 20px var(--accent)}
#phControl::-moz-range-track{height:3px;background:linear-gradient(90deg,#5b416e,#6553a6 25%,#4286b8 54%,#58ffc9 72%)}
#phControl::-moz-range-thumb{width:1rem;height:1rem;border-radius:50%;background:var(--ink);border:3px solid var(--accent)}
.range-scale{display:flex;justify-content:space-between;color:var(--dim);margin-top:.8rem}
.sim-data{display:flex;gap:2rem;border-top:1px solid var(--hair);margin-top:1.3rem;padding-top:1rem;color:var(--muted)}.sim-data b{color:var(--ink);font-weight:400}
.platform-note{position:absolute;right:calc(var(--pad) + 40rem);top:calc(100svh - 10rem);color:var(--muted)}

/* 04 library */
.library{min-height:auto;padding-top:13rem;padding-bottom:13rem}
.library-header{margin-left:7vw;width:min(50rem,58vw)}
.library-header>p:last-child{max-width:24rem;margin:2.2rem 0 0 auto;color:var(--muted);font-size:1.05rem;line-height:1.6}
.probe-list{width:min(76rem,87vw);margin:7rem auto 0;display:grid;gap:.85rem}
.probe{--probe:#58ffc9;min-height:12rem;padding:1.4rem 1.6rem;display:grid;grid-template-columns:10rem 8rem 1fr 18rem 3rem;gap:2rem;align-items:center;transition:background .4s,border-color .4s,transform .5s var(--ease)}
.probe:hover{background:linear-gradient(110deg,color-mix(in srgb,var(--probe) 11%,transparent),rgba(255,255,255,.02));border-color:color-mix(in srgb,var(--probe) 40%,transparent);transform:scale(1.012)}
.probe-no{align-self:start;color:var(--muted)}
.probe-orb{width:5.5rem;height:5.5rem;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff 0 2%,var(--probe) 18%,color-mix(in srgb,var(--probe) 50%,#111) 45%,transparent 72%);filter:drop-shadow(0 0 24px var(--probe));opacity:.62;transition:opacity .4s,transform .5s var(--ease)}
.probe:hover .probe-orb{opacity:1;transform:scale(1.14)}
.probe h3{font:400 clamp(2rem,3vw,3.4rem)/1 var(--serif);letter-spacing:-.03em}
.probe>div:nth-child(3) p{color:var(--muted);margin-top:.5rem}
.probe dl{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;color:var(--muted)}
.probe dl div{border-left:1px solid var(--hair);padding-left:1rem}.probe dd{color:var(--ink);margin-top:.5rem}
.probe-arrow{font-size:1.5rem;color:var(--probe);transition:transform .4s}.probe:hover .probe-arrow{transform:translate(.3rem,-.3rem)}
.research-note{width:min(76rem,87vw);margin:2rem auto 0;color:var(--muted);line-height:1.8;text-align:center}.research-note a{color:var(--ink);text-decoration:underline;text-underline-offset:.2rem}

/* 05 contact */
.contact{min-height:max(100svh,50rem);padding-bottom:0;display:flex;align-items:center;justify-content:center;overflow:hidden}
.contact-aura{position:absolute;width:70vw;height:70vw;border-radius:50%;background:radial-gradient(circle,rgba(88,255,201,.09),transparent 62%);filter:blur(30px);animation:aura 5s ease-in-out infinite}
@keyframes aura{50%{transform:scale(1.12);opacity:.55}}
.contact-copy{position:relative;text-align:center;width:100%;transform:translateY(-2rem)}
.contact-copy h2{font-size:clamp(5.5rem,13vw,15rem)}
.contact-cta{width:min(34rem,80vw);margin:4rem auto 0;border-bottom:1px solid var(--line);padding:1.2rem .2rem;display:flex;justify-content:space-between;font-size:1rem;transition:border-color .3s,color .3s}
.contact-cta:hover{border-color:var(--accent);color:var(--accent)}
.contact-cta i{font-style:normal;transition:transform .3s}.contact-cta:hover i{transform:translate(.3rem,-.3rem)}
.contact footer{position:absolute;left:var(--pad);right:var(--pad);bottom:4.25rem;border-top:1px solid var(--line);padding-top:2rem;display:grid;grid-template-columns:1fr 1fr 2fr;gap:2rem;align-items:start}
.footer-brand{font-size:1.35rem;font-weight:600;letter-spacing:-.04em}
.contact footer>p{color:var(--muted);font-size:.75rem}
.footer-meta{display:flex;justify-content:space-between;color:var(--muted)}
.footer-meta a{color:var(--ink)}.footer-meta a:hover{color:var(--accent)}

@media (max-width:1000px){
  .main-nav{display:none}.site-header{grid-template-columns:1fr 1fr}.header-tools{grid-column:2}.lab-status{display:none}
  .hero-title{font-size:clamp(6.5rem,20vw,12rem)}
  .principle{grid-template-columns:minmax(15rem,.65fr) minmax(0,1.35fr);gap:3rem}.principle-copy{width:100%;margin-right:0}.principle-copy h2,.platform-intro h2,.library-header h2{font-size:clamp(4.2rem,10vw,7rem)}
  .energy-card{width:100%}.platform{grid-template-columns:minmax(0,1fr) minmax(20rem,1fr);gap:3rem}.platform-intro{width:100%;margin-left:0}.wavelength-lab{width:100%}
  .platform-note{display:none}.probe{grid-template-columns:7rem 6rem 1fr 13rem 2rem;gap:1.25rem}.probe-list{width:92vw}
}

@media (max-width:700px){
  .stage::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 42%,rgba(4,5,7,.34),rgba(4,5,7,.5) 68%,rgba(4,5,7,.62));pointer-events:none}
  :root{--pad:1.15rem}.demo-banner{font-size:.48rem}.demo-banner a{display:none}.cursor{display:none}
  .skip-opening{right:.7rem;bottom:2.4rem}.opening-caption{top:calc(50% + 7rem)}.site-header{z-index:300;height:4.8rem;padding-top:1.1rem;background:linear-gradient(#050608 0,rgba(5,6,8,.76) 68%,transparent);border:0}.brand small{display:none}.contact-link{font-size:.5rem}
  .chapter-rail{display:none}.scene{padding-top:7rem;padding-bottom:7rem}.section-index{top:7rem}.hero{height:110svh;min-height:43rem}
  .hero-meta span:last-child{display:none}.hero-title{top:35svh;display:block;width:calc(100% - 2.3rem);font-size:22vw;line-height:.72;text-align:left}
  .hero-title span{display:block;width:100%}.hero-title span:last-child{width:auto;text-align:left;margin:.28em 0 0 28vw}
  .hero-bottom{top:72svh;right:auto;bottom:auto;width:calc(100% - 2.3rem);display:grid;grid-template-columns:minmax(0,1fr) 7.9rem;gap:1rem}.scroll-cue{display:none}.hero-thesis{max-width:13.5rem;font-size:1.05rem}.hero-readout{width:7.9rem;min-width:0;font-size:.5rem}
  .orbit-copy{top:16svh;font-size:.47rem}.principle{min-height:auto;display:block;padding-top:10rem}.principle-copy{position:relative;top:auto;width:100%;margin:0;padding-top:0}.principle-copy h2,.platform-intro h2,.library-header h2{font-size:clamp(3.7rem,16vw,6rem)}
  .principle-copy>p:last-child{width:90%;font-size:.98rem;margin-left:0}.energy-card{position:relative;top:auto;width:100%;margin-top:3.5rem}
  .shift{min-height:auto;padding-top:10rem;padding-bottom:9rem}.shift::before{inset:7% 0 42%;background:linear-gradient(rgba(3,4,5,.9),rgba(3,4,5,.55),transparent)}.shift-heading{position:relative;top:auto;width:100%;padding-left:0}.shift-heading h2{font-size:39vw}.shift-heading p{font-size:.68rem;letter-spacing:.23em}.spectrum-story{position:relative;top:auto;width:100%;height:22rem;margin:4.5rem 0 0}.spectrum-context{font-size:.46rem}.spectrum-context span:last-child{display:none}.spectrum-story svg{height:13rem;top:3.5rem}.spectrum-beats{gap:.5rem}.spectrum-beats .beat{display:block}.spectrum-beats .beat b,.spectrum-beats .beat small{display:block;margin-top:.25rem}.spectrum-beats .beat b{font-size:.58rem}.spectrum-beats .beat small{font-size:.42rem}
  .platform{min-height:auto;display:block;padding-top:10rem;padding-bottom:10rem}.platform-intro{position:relative;top:auto;width:100%;margin:0}.platform-intro>p:last-child{font-size:.98rem;width:90%;margin-left:0}.wavelength-lab{position:relative;top:auto;right:auto;left:auto;width:100%;margin-top:3.5rem}.wavelength-lab output{font-size:25vw}
  .library{min-height:auto;padding-bottom:14rem}.library-header{width:100%;margin:5rem 0 0}.library-header>p:last-child{font-size:.92rem;width:80%}.probe-list{width:100%;margin-top:6rem}
  .probe{min-height:19rem;grid-template-columns:1fr 5rem;padding:1.2rem;gap:1rem}.probe-no{grid-column:1}.probe-orb{grid-column:2;grid-row:1;width:4rem;height:4rem}.probe>div:nth-child(3){grid-column:1/-1}.probe dl{grid-column:1/-1}.probe-arrow{position:absolute;right:1.2rem;bottom:1.2rem}.probe{position:relative}
  .contact{min-height:max(100svh,48rem)}.contact-copy{transform:translateY(-3rem)}.contact-copy h2{font-size:20vw}.contact footer{bottom:4.25rem;grid-template-columns:1fr 1fr}.contact footer>p{display:none}.footer-meta{grid-column:1/-1;font-size:.48rem;gap:1rem;flex-wrap:wrap}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}.shift{--absorb-p:1;--relax-p:1;--emit-p:1;--resolve-p:1;--runner-opacity:0}.contact-wave,.stage-light,.stage-still svg,.scroll-cue i,.lab-status i,.contact-aura,.story-runner::before,.story-runner::after{animation:none!important}.reveal{opacity:1;transform:none;transition:none}.cursor,.uv-beam{display:none!important}
}