/* VisionNav project page. Colours come from the renders and the prototype
   photos: deep navy (#07182a, the photos' own backdrop), teal for what the rig
   senses, amber for what it says in your ear. */

:root{
  --ink:#030d18;--bg:#07182a;--bg-2:#0b2036;--card:#0d2640;
  --line:rgba(150,210,235,.12);--line-2:rgba(150,210,235,.24);
  --text:#eef5fa;--muted:#a3b7c7;--dim:#6d8698;
  --teal:#4dd0e1;--teal-ink:#0e6b77;--amber:#f4c56a;--red:#ff7f6e;--green:#6fdc9b;
  --paper:#f3eee6;--p-ink:#0f1f2d;--p-muted:#4d5d6a;--p-line:rgba(15,31,45,.1);
  --display:'Clash Display','Satoshi',system-ui,sans-serif;
  --sans:'Satoshi',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Menlo,monospace;
  --max:1440px;--pad:clamp(20px,calc(4 * var(--vw)),64px);--r:22px;--gut:max(var(--pad),calc((calc(100 * var(--vw)) - var(--max)) / 2 + var(--pad)));
  /* whole-page zoom on big screens, so it reads like a laptop layout scaled up;
     viewport units divide by it so they still mean the real screen */
  --z:1;--vw:calc(1vw / var(--z));--vh:calc(1vh / var(--z));--svh:calc(1svh / var(--z));
  color-scheme:dark;
}
@media (min-width:1500px){:root{--z:1.1}}
@media (min-width:1800px){:root{--z:1.25}}
@media (min-width:2200px){:root{--z:1.4}}
@media (min-width:2500px){:root{--z:1.6}}
html{zoom:var(--z)}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{background:var(--bg);color:var(--text);font:400 17.5px/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::after{content:"";position:fixed;inset:0;z-index:80;pointer-events:none;opacity:.06;mix-blend-mode:overlay;
  background: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='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
img,video{max-width:100%;display:block}
a{color:inherit}
ul,ol{list-style:none}
button{font:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:8px}
::selection{background:var(--teal);color:var(--ink)}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:100;padding:10px 16px;border-radius:10px;background:var(--amber);color:var(--ink);font-weight:700;text-decoration:none}
.skip:focus{top:12px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
kbd{font:500 .8em var(--mono);padding:1px 6px;border-radius:5px;border:1px solid var(--line-2);background:rgba(255,255,255,.05)}
code{font:500 .8em var(--mono);color:var(--amber);background:rgba(244,197,106,.08);padding:1px 6px;border-radius:5px}
.grad{background:linear-gradient(100deg,var(--teal) 0%,#b9f5fb 55%,var(--amber) 115%);-webkit-background-clip:text;background-clip:text;color:transparent}

.progress{position:fixed;top:0;left:0;right:0;z-index:90;height:3px;transform-origin:0 50%;transform:scaleX(var(--p,0));background:linear-gradient(90deg,var(--teal),var(--amber))}

/* ---- nav: floating glass pill ---- */
.nav{position:fixed;top:14px;left:50%;z-index:50;transform:translateX(-50%);width:min(calc(var(--max) - 2 * var(--pad) + 40px),calc(100% - 24px));
  display:flex;align-items:center;gap:16px;padding:9px 10px 9px 20px;border-radius:999px;
  background:rgba(7,24,42,.5);border:1px solid rgba(255,255,255,.09);backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);
  transition:background .3s,box-shadow .3s}
.nav.scrolled{background:rgba(4,14,26,.82);box-shadow:0 18px 40px -20px rgba(0,0,0,.7)}
.brand{display:flex;align-items:center;flex:none}
.brand img{height:26px;width:auto}
.nav nav{margin-left:auto;display:flex;gap:2px}
.nav nav a{padding:8px 13px;border-radius:999px;color:var(--muted);text-decoration:none;font-size:15px;font-weight:500;transition:color .2s,background .2s}
.nav nav a:hover{color:var(--text);background:rgba(255,255,255,.07)}
@media (max-width:900px){.nav nav{display:none}.nav>.btn{margin-left:auto}}
@media (max-width:380px){.nav{gap:10px;padding-left:14px}.brand img{height:20px}}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:999px;font:700 15.5px var(--sans);
  text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .25s,box-shadow .25s,background .25s,border-color .25s}
.btn-primary{background:linear-gradient(135deg,#6fe6f2,#35b6c8);color:#04222b;box-shadow:0 12px 34px -12px rgba(77,208,225,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(77,208,225,.85)}
.btn-glass{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.15);color:var(--text);backdrop-filter:blur(10px)}
.btn-glass:hover{border-color:var(--teal);background:rgba(77,208,225,.1)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-ic{width:16px;height:16px;fill:currentColor;flex:none}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:clamp(18px,calc(3.6 * var(--vh)),34px)}

/* ---- earpiece line (everywhere VisionNav speaks) ---- */
.ear{display:flex;align-items:center;gap:14px;margin-top:clamp(12px,calc(2.4 * var(--vh)),22px);padding:11px 12px 11px 18px;border-radius:18px;
  background:rgba(3,13,24,.78);border:1px solid var(--line-2);width:fit-content;max-width:100%;backdrop-filter:blur(8px)}
.ear-tag{flex:none;font:500 10.5px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.ear-text{font:500 15px/1.45 var(--mono);color:var(--amber)}
.ear-lg .ear-text{font-size:clamp(15px,calc(1.4 * var(--vw)),17px)}
#earLine{transition:opacity .3s}
.hear{flex:none;width:38px;height:38px;border-radius:50%;border:1px solid rgba(244,197,106,.35);background:transparent;color:var(--amber);
  display:grid;place-items:center;cursor:pointer;transition:background .2s,color .2s}
.hear svg{width:18px;height:18px;fill:currentColor}
.hear svg .w{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.hear:hover{background:rgba(244,197,106,.14)}
.hear.on{background:var(--amber);color:var(--ink)}
.hear.on .w{animation:blink 1s infinite}
@keyframes blink{50%{opacity:.25}}

/* ---- hero ---- */
.hero{position:relative;min-height:clamp(600px,calc(100 * var(--svh)),1240px);padding-bottom:clamp(24px,calc(5 * var(--vh)),70px);overflow:hidden;display:flex;align-items:center;
  background:radial-gradient(45% 55% at 12% 60%,rgba(77,208,225,.09),transparent 70%),var(--bg)}
.hero-glow{position:absolute;right:10%;top:18%;width:calc(46 * var(--vw));height:calc(46 * var(--vw));max-width:720px;max-height:720px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(77,208,225,.25),transparent);filter:blur(30px);pointer-events:none}
/* centred in the hero (a touch below middle to clear the nav), soft-edged so the figure floats instead of sitting in a box */
.hero-visual{position:absolute;top:calc(50% + 16px);transform:translateY(-50%);right:max(0px,calc((calc(100 * var(--vw)) - var(--max)) / 2));width:min(calc(56 * var(--vw)),calc(clamp(600px,calc(100 * var(--svh)),1240px) * .86));aspect-ratio:1056/1200;z-index:1}
.hero-visual picture,.hero-visual img{display:block;width:100%;height:100%}
.hero-visual img{object-fit:cover;
  -webkit-mask-image:radial-gradient(ellipse 58% 60% at 58% 50%,#000 46%,transparent 100%);
  mask-image:radial-gradient(ellipse 58% 60% at 58% 50%,#000 46%,transparent 100%)}
.ar{position:absolute;left:var(--x);top:var(--y);display:flex;align-items:center;z-index:2}
.ar i{order:0;flex:none;width:12px;height:12px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 5px rgba(244,197,106,.22),0 0 18px rgba(244,197,106,.9)}
.ar::after{content:"";order:1;width:38px;height:1px;background:linear-gradient(90deg,var(--amber),rgba(255,255,255,.45))}
.ar>span{order:2;padding:8px 13px;border-radius:13px;background:rgba(7,24,42,.6);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(10px);
  font:700 13.5px/1.25 var(--sans);color:#fff;white-space:nowrap;animation:bob 6s ease-in-out infinite}
.ar em{display:block;font:500 11px var(--mono);font-style:normal;color:var(--teal);letter-spacing:.03em}
.ar-r{transform:translate(-6px,-50%)}
.ar-l{flex-direction:row-reverse;transform:translate(calc(-100% + 6px),-50%)}
.ar-l::after{background:linear-gradient(270deg,var(--amber),rgba(255,255,255,.45))}
.ar-low>span{animation-delay:-3s}
@keyframes bob{50%{transform:translateY(-6px)}}
.hero-copy{position:relative;z-index:3;width:100%;max-width:var(--max);margin:0 auto;padding:clamp(84px,calc(12 * var(--vh)),120px) var(--pad) 0}
.hero-copy>*{max-width:min(680px,calc(44 * var(--vw)))}
.eyebrow{display:inline-flex;align-items:center;gap:10px;padding:7px 15px;border-radius:999px;border:1px solid var(--line-2);
  background:rgba(7,24,42,.6);backdrop-filter:blur(8px);font:500 12px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--teal)}
.live{width:8px;height:8px;border-radius:50%;background:var(--green);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(111,220,155,.6)}70%,100%{box-shadow:0 0 0 10px rgba(111,220,155,0)}}
.h1{margin-top:0;font:600 clamp(2.6rem,min(calc(6.3 * var(--vw)),calc(8 * var(--vh))),5.7rem)/.98 var(--display);letter-spacing:-.02em}
.h1 .ln{display:inline-block}
.js .h1 .ln{opacity:0;transform:translateY(.45em);animation:up .9s cubic-bezier(.2,.75,.2,1) forwards}
.js .h1 .ln:nth-child(2){animation-delay:.08s}.js .h1 .ln:nth-child(3){animation-delay:.2s}.js .h1 .ln:nth-child(4){animation-delay:.28s}
@keyframes up{to{opacity:1;transform:none}}
.hero-sub{margin-top:clamp(14px,calc(2.6 * var(--vh)),24px);max-width:min(560px,calc(44 * var(--vw)));color:var(--muted);font-size:clamp(1.03rem,calc(1.35 * var(--vw)),1.15rem)}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px 34px;margin-top:clamp(20px,calc(4.4 * var(--vh)),40px);padding-top:clamp(14px,calc(2.6 * var(--vh)),24px);border-top:1px solid var(--line)}
.hero-stats b{display:block;font:600 1.9rem/1 var(--display)}
.hero-stats span{display:block;margin-top:6px;font:500 11.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--dim)}
@media (max-width:900px){
  .hero{min-height:0;display:block;padding-top:76px;padding-bottom:0}
  .hero-visual{position:relative;top:auto;right:auto;transform:none;width:min(100%,470px);margin:0 auto}
  .hero-glow{right:auto;left:10%;top:6%;width:calc(80 * var(--vw));height:calc(80 * var(--vw))}
  .hero-copy{margin-top:-80px;padding-top:0;padding-bottom:70px}
  .hero-copy>*,.hero-sub{max-width:620px}
  .h1{font-size:clamp(2.6rem,calc(8 * var(--vw)),4rem)}
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .ar>span{font-size:12px;padding:6px 10px}
  .ar em{display:none}
  .ar::after{width:22px}
}

/* ---- marquee ---- */
.marquee{position:relative;z-index:2;overflow:hidden;padding:20px 0;border-block:1px solid var(--line);background:rgba(3,13,24,.65)}
.track{display:flex;width:max-content;animation:marq 48s linear infinite}
.track span{display:flex;align-items:center;padding-right:44px;font:500 clamp(1.05rem,calc(1.6 * var(--vw)),1.3rem) var(--display);color:var(--muted);white-space:nowrap}
.track span::after{content:"✦";margin-left:44px;font-size:.75em;color:var(--amber)}
@keyframes marq{to{transform:translateX(-50%)}}

/* ---- sections ---- */
.sec{position:relative;padding:clamp(40px,calc(4 * var(--vw)),60px) 0}
.sec-deep{background:var(--ink)}
.sec-paper{background:var(--paper);color:var(--p-ink)}
.kick{display:flex;align-items:center;gap:12px;font:500 12.5px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--teal)}
.sec-paper .kick{color:var(--teal-ink)}
.clk{position:relative;flex:none;width:22px;height:22px;border-radius:50%;border:2px solid currentColor}
.clk::after{content:"";position:absolute;left:50%;bottom:50%;width:2px;height:7px;margin-left:-1px;border-radius:2px;background:var(--amber);
  transform-origin:50% 100%;transform:rotate(calc(var(--h) * 30deg))}
.sec-paper .clk::after{background:#b8740e}
.h2{margin-top:18px;max-width:20ch;font:600 clamp(2.2rem,calc(4.8 * var(--vw)),3.9rem)/1.02 var(--display);letter-spacing:-.02em;text-wrap:balance}
.sec-paper .h2{color:var(--p-ink)}
.h3{margin:clamp(36px,calc(3.5 * var(--vw)),52px) 0 20px;font:600 clamp(1.45rem,calc(2.3 * var(--vw)),1.9rem)/1.15 var(--display)}
.lede{margin-top:20px;max-width:640px;color:var(--muted);font-size:1.1rem}
.lede b{color:var(--text)}

/* ---- the idea ---- */
.idea{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center}
.statement{margin-top:24px;font:500 clamp(1.6rem,calc(2.9 * var(--vw)),2.45rem)/1.22 var(--display);color:var(--muted);text-wrap:pretty}
.statement i{color:var(--text)}
.statement mark{color:var(--text);background:linear-gradient(transparent 64%,rgba(77,208,225,.38) 0)}
.live-map{position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line-2);background:var(--ink);
  box-shadow:0 50px 90px -45px rgba(0,0,0,.9),0 0 80px -30px rgba(77,208,225,.35)}
.live-map video{width:100%;height:auto;aspect-ratio:16/9}
.live-tag{position:absolute;left:14px;top:14px;z-index:1;display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;
  background:rgba(3,13,24,.75);border:1px solid var(--line-2);font:500 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text)}
.live-map figcaption{padding:14px 18px;border-top:1px solid var(--line);color:var(--muted);font-size:.92rem}
@media (max-width:900px){.idea{grid-template-columns:1fr;gap:40px}}

/* ---- demo video ---- */
.sec-demo{background:radial-gradient(50% 50% at 50% 70%,rgba(77,208,225,.1),transparent 70%),var(--bg)}
.yt{margin-top:32px;border-radius:26px;overflow:hidden;border:1px solid var(--line-2);background:var(--ink);
  box-shadow:0 60px 100px -50px rgba(0,0,0,.95),0 0 100px -40px rgba(77,208,225,.4)}
.yt-link{position:relative;display:block;aspect-ratio:16/9;color:inherit;text-decoration:none}
.yt-link img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1),filter .4s}
.yt-link:hover img{transform:scale(1.02);filter:brightness(.92)}
.yt-play{position:absolute;left:50%;top:50%;width:clamp(52px,calc(6.5 * var(--vw)),84px);aspect-ratio:1;transform:translate(-50%,-50%);display:grid;place-items:center;border-radius:50%;
  background:linear-gradient(135deg,#6fe6f2,#35b6c8);animation:ring-teal 2.4s infinite;transition:transform .3s}
.yt-link:hover .yt-play{transform:translate(-50%,-50%) scale(1.07)}
@keyframes ring-teal{0%{box-shadow:0 0 0 0 rgba(77,208,225,.55),0 20px 50px rgba(0,0,0,.5)}70%,100%{box-shadow:0 0 0 22px rgba(77,208,225,0),0 20px 50px rgba(0,0,0,.5)}}
.yt-play svg{width:40%;fill:#04222b;margin-left:8%}
.yt-cap{position:absolute;left:20px;bottom:20px;max-width:calc(100% - 40px);padding:12px 16px;border-radius:14px;background:rgba(3,13,24,.82);border:1px solid var(--line-2);
  backdrop-filter:blur(8px);color:var(--muted);font-size:.9rem;line-height:1.4}
.yt-cap b{display:block;color:var(--text);font:600 1.05rem var(--display)}
.yt iframe{display:block;width:100%;aspect-ratio:16/9;border:0}
@media (max-width:900px){.yt-cap{display:none}}

/* ---- the prototype ---- */
.sec-proto{background:radial-gradient(50% 40% at 50% 38%,rgba(77,208,225,.1),transparent 70%),#07182a}
.proto{position:relative;margin-top:30px;display:grid;justify-items:center}
.proto-main{position:relative;width:min(640px,100%)}
.proto-main img{width:100%;height:auto;filter:drop-shadow(0 30px 40px rgba(0,0,0,.45))}
.proto-side{position:absolute;left:20px;bottom:-14%;width:min(230px,26%);border-radius:20px;overflow:hidden;border:1px solid var(--line-2);background:#07182a;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.9)}
.proto-side img{width:100%;height:auto}
.proto-side figcaption{position:relative;padding:10px 14px;border-top:1px solid var(--line);font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:#07182a}
.callouts{position:relative;counter-reset:co}
.co{position:absolute;left:calc(var(--xf) * 100%);top:calc(var(--yf) * 100%);z-index:2;display:flex;align-items:center;counter-increment:co}
.co i{flex:none;width:12px;height:12px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 5px rgba(244,197,106,.22),0 0 16px rgba(244,197,106,.8)}
.co-line{flex:none;height:1px;background:linear-gradient(90deg,var(--amber),rgba(238,245,250,.45))}
.co-r{transform:translate(-6px,-50%)}
.co-r .co-line{width:calc(var(--w) * (1 - var(--xf)) + 30px)}
.co-l{flex-direction:row-reverse;transform:translate(calc(-100% + 6px),-50%)}
.co-l .co-line{width:calc(var(--w) * var(--xf) + 30px);background:linear-gradient(270deg,var(--amber),rgba(238,245,250,.45))}
.co-label{padding:9px 14px;border-radius:14px;background:rgba(7,24,42,.78);border:1px solid var(--line-2);backdrop-filter:blur(8px);
  font:500 13px/1.35 var(--sans);color:var(--muted);white-space:nowrap}
.co-label b{display:block;font:600 15.5px var(--display);color:var(--text);letter-spacing:.01em}
.co-legend{display:none;counter-reset:lg;margin-top:28px;gap:10px;width:100%}
.co-legend li{counter-increment:lg;position:relative;padding-left:38px;color:var(--muted)}
.co-legend li::before{content:counter(lg);position:absolute;left:0;top:0;width:24px;height:24px;border-radius:50%;background:var(--amber);color:var(--ink);font:700 12px/24px var(--mono);text-align:center}
.co-legend b{color:var(--text)}
.wear{margin-top:clamp(44px,calc(4.5 * var(--vw)),64px)}
.wear-fig{width:340px;margin:0 auto}
.wear-fig img{width:100%;height:auto}
.wear-title{margin:0 0 24px;text-align:center}
.wear-text{margin-top:28px}
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.flow-step{position:relative;padding:28px;border-radius:var(--r);border:1px solid var(--line);background:linear-gradient(180deg,var(--card),rgba(13,38,64,.35))}
.flow-step+.flow-step::before{content:"→";position:absolute;left:-14px;top:50%;transform:translate(-50%,-50%);color:var(--amber);font:500 16px var(--mono)}
.fs-n{font:500 12px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--teal)}
.flow-step h4{margin:8px 0;font:600 1.7rem var(--display)}
.flow-step p{color:var(--muted);font-size:.97rem}
@media (max-width:1100px){
  .co-line,.co-label{display:none}
  .co-r,.co-l{transform:translate(-50%,-50%)}
  .co i{width:24px;height:24px;display:grid;place-items:center;font:700 12px var(--mono);font-style:normal;color:var(--ink)}
  .co i::after{content:counter(co)}
  .co-legend{display:grid}
  .proto-side{position:relative;left:auto;bottom:auto;width:min(260px,70%);margin-top:16px}
  .wear-fig{width:min(300px,80%)}
  .wear-legend{max-width:420px;margin:28px auto 0}
}
@media (max-width:760px){
  .proto-side{position:relative;right:auto;bottom:auto;width:min(260px,70%);margin-top:16px}
  .flow{grid-template-columns:1fr}
  .flow-step+.flow-step::before{content:"↓";left:50%;top:-8px}
}

/* ---- a day (3D carousel) ---- */
.sec-day{background:linear-gradient(180deg,var(--bg),#0b2239 55%,var(--bg))}
.day-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.rail-ctl{display:flex;gap:10px}
.rail-btn{width:54px;height:54px;border-radius:50%;border:1px solid var(--line-2);background:rgba(255,255,255,.04);color:var(--text);font-size:20px;cursor:pointer;transition:background .2s,border-color .2s}
.rail-btn:hover{border-color:var(--teal);background:rgba(77,208,225,.12)}
.rail-btn:disabled{opacity:.35;cursor:default}
.rail{display:flex;gap:26px;overflow-x:auto;scroll-snap-type:x mandatory;padding:28px var(--gut) 20px;scroll-padding-inline:var(--gut);scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail:focus-visible{outline-offset:-4px}
.slide{flex:none;width:min(880px,calc(86 * var(--vw)));scroll-snap-align:start;border-radius:28px;overflow:hidden;background:var(--card);border:1px solid var(--line);
  box-shadow:0 50px 90px -50px rgba(0,0,0,.95);transition:opacity .5s,transform .5s}
.js .slide:not(.cur){opacity:.5;transform:scale(.97)}
.js .slide:not(.cur){cursor:pointer}
.js .slide:not(.cur):hover{opacity:.75}
.slide figure img{width:100%;height:auto;aspect-ratio:16/9}
.slide-cap{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px 28px;align-items:end;padding:24px 28px 28px}
.slide-cap time{font:500 12px var(--mono);letter-spacing:.12em;color:var(--amber)}
.slide-cap h3{margin:6px 0;font:600 1.75rem/1.1 var(--display)}
.slide-cap p{color:var(--muted);font-size:.98rem;max-width:44ch}
.slide-cap .ear{margin-top:0;max-width:330px}
.rail-dots{display:flex;justify-content:center;gap:8px;margin-top:6px}
.rail-dots span{width:8px;height:8px;border-radius:99px;background:var(--line-2);transition:width .3s,background .3s}
.rail-dots span.on{width:30px;background:var(--teal)}
@media (max-width:700px){.rail-ctl{display:none!important}}
@media (max-width:900px){.slide-cap{grid-template-columns:1fr;padding:20px}.slide-cap h3{font-size:1.45rem}.rail{gap:14px}}

/* ---- features (2D bento) ---- */
.bento{margin-top:36px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card{position:relative;display:flex;flex-direction:column;overflow:hidden;border-radius:26px;background:#fff;border:1px solid var(--p-line);
  box-shadow:0 24px 44px -30px rgba(15,31,45,.4);transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.card:hover{transform:translateY(-5px);box-shadow:0 40px 70px -34px rgba(15,31,45,.55)}
.card img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.card-body{flex:1;display:flex;flex-direction:column;gap:8px;padding:22px 24px 26px}
.card-n{font:500 12px var(--mono);letter-spacing:.12em;color:var(--teal-ink)}
.card h3{font:600 1.45rem/1.15 var(--display);color:var(--p-ink)}
.card p{color:var(--p-muted);font-size:.97rem}
.card .q{margin-top:auto;padding:10px 14px;border-radius:12px;width:fit-content;background:var(--p-ink);color:var(--amber);font:500 13px/1.45 var(--mono)}
.card-full{grid-column:span 2;flex-direction:row;align-items:center;border:0;background:radial-gradient(60% 120% at 0% 50%,rgba(77,208,225,.25),transparent 70%),linear-gradient(120deg,#07182a,#0e2c47)}
.card-big{flex:none;padding:10px 20px 10px 44px;font:700 clamp(7rem,calc(13 * var(--vw)),11rem)/.9 var(--display);background:linear-gradient(160deg,var(--teal),var(--amber));-webkit-background-clip:text;background-clip:text;color:transparent}
.card-full .card-body{padding:34px 40px 34px 20px;max-width:720px}
.card-full h3{color:var(--text);font-size:1.9rem}
.card-full p{color:var(--muted)}
.card-full .card-n{color:var(--teal)}
.card-full .q{background:rgba(255,255,255,.07)}
@media (max-width:1000px){
  .bento{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-full{grid-column:auto;flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .bento{grid-template-columns:1fr}
  .card-big{padding:24px 24px 0}
  .card-full .card-body{padding:16px 24px 28px}
}

/* ---- watch ---- */
.player{margin-top:32px}
.player.ready{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px;align-items:start}
.player-screen{border-radius:var(--r);overflow:hidden;border:1px solid var(--line-2);background:var(--ink);box-shadow:0 50px 90px -45px rgba(0,0,0,.95),0 0 90px -40px rgba(77,208,225,.35)}
.player-screen video{width:100%;height:auto;aspect-ratio:16/9}
.player-list{display:flex;flex-direction:column;gap:10px}
.pl-hint{display:flex;align-items:center;gap:8px;margin-bottom:2px;font:500 12px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--amber)}
.pl-hint svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;animation:tap 1.6s ease-in-out infinite}
@keyframes tap{50%{transform:translateY(-3px)}}
.pl-ic{float:right;width:30px;height:30px;margin:0 0 6px 10px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line-2);color:var(--teal);transition:background .2s,color .2s}
.pl-ic svg{width:12px;height:12px;fill:currentColor;margin-left:2px}
.pl:hover .pl-ic,.pl[aria-pressed="true"] .pl-ic{background:var(--teal);color:var(--ink);border-color:var(--teal)}
.pl{position:relative;overflow:hidden;padding:18px 20px;border-radius:16px;border:1px solid var(--line);background:var(--bg-2);color:var(--text);text-align:left;cursor:pointer;transition:border-color .2s,background .2s}
.pl:hover{border-color:var(--line-2)}
.pl b{display:block;font:600 1.1rem var(--display)}
.pl span{display:block;margin-top:4px;font-size:14px;line-height:1.45;color:var(--muted)}
.pl[aria-pressed="true"]{border-color:rgba(77,208,225,.6);background:linear-gradient(90deg,rgba(77,208,225,.16),rgba(77,208,225,.03))}
.pl[aria-pressed="true"]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--teal)}
@media (max-width:900px){.player.ready{grid-template-columns:1fr}}

/* ---- glow-on-hover cards ---- */
.glowcard{position:relative;overflow:hidden}
.glowcard::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(280px circle at var(--mx,50%) var(--my,0%),rgba(77,208,225,.18),transparent 70%)}
.glowcard:hover::before{opacity:1}

/* ---- inside ---- */
.pipe{margin-top:40px;display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--line-2)}
.pipe li{position:relative;padding:30px 26px 0 0}
.pipe li::before{content:"";position:absolute;top:-6px;left:0;width:10px;height:10px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 6px rgba(77,208,225,.15)}
.pipe i{font:500 12px var(--mono);font-style:normal;color:var(--dim)}
.pipe h3{margin:6px 0 8px;font:600 1.5rem var(--display)}
.pipe p{color:var(--muted);font-size:.97rem}
.models{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.models li{padding:22px;border-radius:16px;border:1px solid var(--line);background:var(--bg-2);color:var(--muted);font-size:.92rem;line-height:1.5}
.models span{display:block;font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--teal)}
.models b{display:block;margin:8px 0 4px;font:600 1.2rem var(--display);color:var(--text)}
.tbl-wrap{scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}
.cheat{border-radius:var(--r);border:1px solid var(--line);background:var(--bg-2)}
.cheat summary{display:flex;align-items:center;gap:12px;padding:22px 24px;cursor:pointer;list-style:none;font:600 1.15rem var(--display)}
.cheat summary::-webkit-details-marker{display:none}
.cheat summary::after{content:"+";font:400 22px/1 var(--mono);color:var(--teal)}
.cheat summary::after{margin-left:auto}
.cheat[open] summary::after{content:"–"}
@media (max-width:900px){
  .pipe{grid-template-columns:1fr 1fr;row-gap:36px;border-top:0}
  .pipe li{border-top:2px solid var(--line-2)}
}
@media (max-width:520px){.pipe{grid-template-columns:1fr}}

/* ---- try it ---- */
.sim{margin-top:32px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:20px}
.panel{display:flex;flex-direction:column;justify-content:center;padding:30px;border-radius:28px;border:1px solid rgba(255,255,255,.08);
  background:radial-gradient(80% 60% at 30% 0%,rgba(77,208,225,.12),transparent 70%),linear-gradient(160deg,#1c2733,#0a1118);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 40px 70px -35px rgba(0,0,0,.9)}
.panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.panel-lens{width:50px;height:50px;border-radius:13px;background:radial-gradient(circle,#30475c 0 22%,#05080c 25% 58%,#18222d 61%);box-shadow:inset 0 0 0 2px #000}
.panel-logo{width:min(200px,55%);height:auto;filter:drop-shadow(0 4px 12px rgba(0,0,0,.5))}
.rig-btns{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:32px}
.rb{display:flex;flex-direction:column;align-items:center;gap:10px;padding:16px 2px 10px;border-radius:16px;border:1px solid rgba(255,255,255,.07);
  background:rgba(255,255,255,.03);color:var(--text);cursor:pointer;touch-action:none;user-select:none;-webkit-user-select:none}
.rb-teal{--c:#2bb3c4;--d:#14616b}.rb-red{--c:#e5534b;--d:#7a2420}.rb-green{--c:#3fae5f;--d:#1d5a2e}.rb-amber{--c:#e9a93a;--d:#7a5410}
.cap{width:clamp(34px,calc(5.4 * var(--vw)),52px);aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle at 34% 30%,rgba(255,255,255,.55) 0 7%,transparent 32%),var(--c);
  box-shadow:0 5px 0 var(--d),0 9px 14px rgba(0,0,0,.55);transition:transform .08s,box-shadow .08s}
.rb.down .cap{transform:translateY(4px);box-shadow:0 1px 0 var(--d),0 2px 4px rgba(0,0,0,.5)}
.rb.holding .cap{outline:3px solid var(--amber);outline-offset:4px}
.lbl{font:500 10.5px var(--mono);letter-spacing:.06em}
.rb kbd{font-size:10px;color:var(--dim)}
.leds{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.leds li{display:flex;align-items:center;gap:7px;padding:5px 11px;border-radius:999px;background:rgba(0,0,0,.35);font:500 11.5px var(--mono);color:var(--dim)}
.leds li::before{content:"";width:7px;height:7px;border-radius:50%;background:#2c3946}
.leds li.on,.leds li.alt{color:var(--text)}
.leds li.on::before{background:var(--green);box-shadow:0 0 8px var(--green)}
.leds li.alt::before{background:var(--amber);box-shadow:0 0 8px var(--amber)}
.sim-nojs{margin-top:16px;color:var(--amber);font-size:.9rem}
.js .sim-nojs{display:none}
.earlog{display:flex;flex-direction:column;min-height:360px;border-radius:28px;border:1px solid var(--line-2);background:#020911;overflow:hidden}
.earlog-bar{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);font:500 11.5px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.snd{padding:5px 12px;border-radius:999px;border:1px solid var(--line-2);background:transparent;font:500 12px var(--mono);letter-spacing:0;text-transform:none;color:var(--text);cursor:pointer}
.snd[aria-pressed="true"]{background:var(--amber);border-color:var(--amber);color:var(--ink)}
#log{flex:1;display:flex;flex-direction:column;gap:8px;max-height:420px;overflow-y:auto;padding:18px;font:400 14px/1.5 var(--mono)}
#log li{animation:rise .3s}
#log .say{color:var(--amber)}
#log .say::before{content:"◖ ";color:var(--dim)}
#log .you{align-self:flex-end;max-width:85%;padding:6px 12px;border-radius:12px 12px 3px 12px;background:rgba(77,208,225,.12);color:var(--text)}
#log .ev{font-size:12px;color:var(--dim)}
#log .hint{color:var(--teal)}
.cheat{margin-top:20px}
.cheat .tbl-wrap{border:0;border-top:1px solid var(--line);border-radius:0}
@media (max-width:900px){.sim{grid-template-columns:1fr}.earlog{min-height:300px}}
@media (max-width:420px){.panel{padding:20px 14px}.rig-btns{gap:5px}.lbl{font-size:9.5px;letter-spacing:0}}

/* ---- tables ---- */
.tbl-wrap{overflow-x:auto;border-radius:var(--r);border:1px solid var(--line)}
.tbl{width:100%;min-width:640px;border-collapse:collapse;font-size:.95rem}
.tbl th,.tbl td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}
.tbl tr:last-child>*{border-bottom:0}
.tbl thead th{font:500 11.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--dim)}
.tbl tbody th{font:500 13px var(--mono);color:var(--teal)}
.tbl td{color:var(--muted)}
.cmp{min-width:820px}
.cmp td,.cmp thead th:not(:first-child){text-align:center}
.cmp tbody th{font:500 1rem var(--sans);color:var(--text)}
.cmp tbody th,.cmp thead th:first-child{position:sticky;left:0;z-index:1;background:var(--ink)}
.cmp td.y{color:var(--text)}
.cmp td.y::before{content:"✓ ";color:var(--teal)}
.cmp td.n{color:var(--dim)}
.cmp td.n::before{content:"✕ "}
.cmp td.p{color:var(--amber)}
.cmp .us{background:rgba(77,208,225,.1)}
.cmp thead .us{color:var(--teal);box-shadow:inset 0 3px 0 var(--teal)}
.cmp td.us{font-weight:700}
@media (max-width:700px){.cmp tbody th,.cmp thead th:first-child{min-width:170px;box-shadow:1px 0 0 var(--line-2)}}

/* ---- results ---- */
.stats{margin-top:36px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stats li{padding:32px 26px;border-radius:var(--r);border:1px solid var(--line);background:linear-gradient(180deg,var(--card),var(--bg-2))}
.stats b{display:block;font:600 clamp(2.8rem,calc(4.6 * var(--vw)),4rem)/1 var(--display);letter-spacing:-.02em;color:var(--teal)}
.stats small{font-size:.5em;letter-spacing:0;opacity:.8}
.stats li>span{display:block;margin-top:14px;font-weight:500;line-height:1.4}
.stats i{display:block;margin-top:10px;font:400 12px/1.55 var(--mono);font-style:normal;color:var(--dim)}
@media (max-width:900px){.stats{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.stats{grid-template-columns:1fr}}

/* ---- close + footer ---- */
.close{position:relative;overflow:hidden;min-height:440px;display:flex;align-items:center;padding:56px 0;background:var(--ink)}
.close-img{position:absolute;top:0;right:0;height:100%;width:auto;max-width:none;opacity:.6;
  -webkit-mask-image:linear-gradient(to right,transparent,#000 45%),linear-gradient(to top,transparent,#000 30%);-webkit-mask-composite:source-in;
  mask-image:linear-gradient(to right,transparent,#000 45%),linear-gradient(to top,transparent,#000 30%);mask-composite:intersect}
.close-in{position:relative;z-index:1;width:100%}
.close-logo{width:min(320px,70%);height:auto;margin-bottom:28px;filter:drop-shadow(0 0 30px rgba(30,140,255,.35))}
.close-line{max-width:14ch;font:600 clamp(2.7rem,calc(6.2 * var(--vw)),5.4rem)/1 var(--display);letter-spacing:-.02em}
@media (max-width:760px){.close-img{opacity:.3}}
.foot{padding:40px 0 28px;border-top:1px solid var(--line);background:var(--ink)}
.foot-in{max-width:var(--max);margin:0 auto;padding:0 var(--pad);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}
.foot-logo{width:170px;height:auto;margin-bottom:12px}
.foot-name{font:600 1.15rem var(--display)}
.foot-sub{color:var(--dim);font-size:.92rem}
.foot-sup{margin-top:6px;color:var(--dim);font-size:.92rem}
.foot-sup b{color:var(--muted);font-weight:500}
.foot-links{display:flex;gap:10px}
.foot-links a{width:44px;height:44px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line-2);color:var(--muted);transition:color .2s,border-color .2s}
.foot-links a:hover{color:var(--teal);border-color:var(--teal)}
.foot-links svg{width:18px;height:18px}
.reveal{position:relative}
.reveal button{width:44px;height:44px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line-2);background:transparent;color:var(--muted);cursor:pointer;transition:color .2s,border-color .2s,background .2s}
.reveal button:hover,.reveal button[aria-expanded="true"]{color:var(--teal);border-color:var(--teal)}
.reveal button[aria-expanded="true"]{background:rgba(77,208,225,.1)}
.bubble{position:absolute;right:0;bottom:calc(100% + 12px);z-index:5;padding:10px 14px;border-radius:12px;background:var(--card);border:1px solid var(--teal);
  box-shadow:0 16px 30px -12px rgba(0,0,0,.7);white-space:nowrap;font:500 14px var(--mono);color:var(--text);user-select:all;animation:rise .2s}
.bubble[hidden]{display:none}
.bubble b{display:block;margin-bottom:2px;font:500 10.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--amber);user-select:none}
.bubble::after{content:"";position:absolute;right:16px;top:100%;border:7px solid transparent;border-top-color:var(--teal)}
@media (max-width:640px){.bubble{right:auto;left:0}.bubble::after{right:auto;left:16px}}
.foot-copy{max-width:var(--max);margin:26px auto 0;padding:0 var(--pad);color:var(--dim);font-size:.84rem}

/* ---- motion ---- */
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.js .rv{opacity:0;transform:translateY(14px);transition:opacity .5s cubic-bezier(.2,.7,.2,1),transform .5s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .js .rv,.js .h1 .ln{opacity:1;transform:none}
  .js .slide:not(.cur){opacity:1;transform:none}
}