/* Helix – "The Twist" hero preview. Type, colours and buttons follow the live helix_hero section (Jost, #da0303). */
@font-face{font-family:"Jost";src:url(../fonts/jost-latin.woff2) format("woff2");font-weight:300 800;font-display:swap}
:root{
  --bg:#0c0c0e;--hdr:#242424;--red:#da0303;--red2:#b70303;--kick:#ff3b30;--grey:#ecebe7;--mute:rgba(255,255,255,.56);
  --hh:88px;--f:"Jost","Futura","Century Gothic",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background:var(--bg)}
body{margin:0;font:400 16px/1.5 var(--f);color:#242424;background:#f2f2f0;-webkit-font-smoothing:antialiased;overflow-x:clip}
img,video,canvas,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,p,ul{margin:0}ul{padding:0;list-style:none}
.skip{position:absolute;left:-999px;top:0;z-index:99;background:var(--red);color:#fff;padding:10px 16px}
.skip:focus{left:10px;top:10px}
.wrap{max-width:1360px;margin:0 auto;padding:0 clamp(24px,5vw,76px)}

/* ---------- header (live: #242424, logo centred) ---------- */
.hdr{position:sticky;top:0;z-index:40;height:var(--hh);background:var(--hdr)}
.hdr-in{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 clamp(24px,9.5vw,140px)}
.hdr-nav{display:flex;gap:30px}
.hdr-nav a{font:500 14px/1 var(--f);color:#fff;text-transform:uppercase;letter-spacing:.02em;padding:10px 0;position:relative}
.hdr-nav a::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:0 50%;transition:transform .3s}
.hdr-nav a:hover::after{transform:scaleX(1)}
.hdr-logo img{width:210px;height:auto}
.hdr-tools{display:flex;justify-content:flex-end;gap:18px;color:#fff}
.hdr-ico{display:grid;place-items:center;position:relative}
.hdr-cart b{position:absolute;right:-8px;top:-8px;min-width:16px;height:16px;border-radius:8px;background:#fff;color:#111;font:600 10px/16px var(--f);text-align:center}
.hdr-burger{display:none;background:none;border:0;padding:8px;width:40px;cursor:pointer}
.hdr-burger span{display:block;height:2px;background:#fff;margin:5px 0}

/* ---------- buttons (live hh-btn) ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 26px;border:1px solid #fff;text-transform:uppercase;letter-spacing:.09em;font:800 12px/1 var(--f);color:#fff;white-space:nowrap;transition:background-color .2s,border-color .2s,color .2s}
.btn span{display:block;pointer-events:none}
.btn-red{background:var(--red);border-color:var(--red)}
.btn-red:hover{background:var(--red2);border-color:var(--red2)}
.btn-line{background:rgba(0,0,0,.18);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.btn-line:hover{background:#fff;color:#111}
.magnet{will-change:transform}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--bg);height:calc(300vh - var(--hh))}         /* pinned for 2 viewport heights */
.hero-stick{position:sticky;top:var(--hh);height:calc(100vh - var(--hh));min-height:600px;display:flex;overflow:hidden}
.hero-copy{flex:0 0 50%;max-width:50%;display:flex;align-items:center;position:relative;z-index:6;pointer-events:none}
.hero-copy-in{padding:32px 20px 32px clamp(24px,5vw,76px);max-width:700px;pointer-events:auto}
.hero-kicker{font-size:12px;letter-spacing:.22em;text-transform:uppercase;font-weight:700;color:var(--kick);margin:0 0 18px}
.hero-kicker span{padding:0 .2em}
.hero-h1{color:#fff;font-size:min(5.75vw,9.2vh,96px);line-height:.88;letter-spacing:-.04em;text-transform:uppercase;font-weight:800}
.hero-text{max-width:560px;margin-top:24px;font-size:clamp(17px,1.4vw,21px);line-height:1.5;color:rgba(255,255,255,.84)}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;margin-top:38px;border-top:1px solid rgba(255,255,255,.22);max-width:640px}
.hero-stats li{padding:16px 22px 0 0;margin-right:18px;min-width:118px}
.hero-stats b{display:block;font-size:16px;color:#fff;font-weight:600;text-transform:uppercase}
.hero-stats span{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--mute)}

/* stage: video -> WebGL scene, full width behind the copy on desktop */
.stage{position:absolute;inset:0;z-index:0;overflow:hidden;isolation:isolate;
  background:radial-gradient(ellipse 46% 62% at 66% 52%,#2b2b2f 0,#1a1a1d 46%,#0e0e10 78%,#0a0a0b 100%)}
.stage::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background:radial-gradient(ellipse 30% 9% at 66% 83%,rgba(255,255,255,.06),transparent 70%),repeating-linear-gradient(90deg,rgba(255,255,255,.012) 0 1px,transparent 1px 120px)}
.still,.still img,.intro,.gl{position:absolute;inset:0;width:100%;height:100%}
.still img{object-fit:cover}
.intro,.gl{display:none}
.js .intro,.js .gl{display:block}
.js .still{display:none}
.intro{object-fit:cover;z-index:2;transition:opacity 1.2s ease,transform 2.2s cubic-bezier(.2,.7,.1,1),filter 1.2s ease}
.gl{z-index:1;opacity:0;transition:opacity 1.2s ease .15s}
.stage.is-scene .gl{opacity:1}
.stage.is-scene .intro{opacity:0;transform:scale(1.06);filter:blur(6px) brightness(.6)}
.stage-shade{position:absolute;inset:0;z-index:3;pointer-events:none;
  background:
    linear-gradient(90deg,rgba(10,10,11,.95) 0,rgba(10,10,11,.9) 30%,rgba(10,10,11,.72) 39%,rgba(10,10,11,.36) 48%,rgba(10,10,11,.1) 57%,rgba(10,10,11,0) 64%),
    linear-gradient(180deg,rgba(10,10,11,.45) 0,rgba(10,10,11,0) 14%,rgba(10,10,11,0) 80%,rgba(10,10,11,.5) 100%)}
.stage-tag{position:absolute;z-index:4;right:34px;top:26px;font:600 11px/1 var(--f);letter-spacing:.18em;color:rgba(255,255,255,.72);display:flex;align-items:center;gap:8px;text-shadow:0 1px 4px rgba(0,0,0,.6)}
.stage-tag i{width:7px;height:7px;background:var(--red);transform:skewX(-20deg);box-shadow:0 0 8px var(--red)}
.stage-tag b{color:var(--kick)}
.stage-hint{position:absolute;z-index:4;right:34px;top:52px;font:600 11px/1 var(--f);letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.7);display:flex;align-items:center;gap:10px;opacity:0;transition:opacity .5s}
.stage.is-scene.at-start .stage-hint{opacity:1}
.mouse{width:16px;height:24px;border:1.5px solid rgba(255,255,255,.7);border-radius:9px;position:relative}
.mouse i{position:absolute;left:50%;top:5px;width:2px;height:5px;margin-left:-1px;background:var(--red);border-radius:2px;animation:wheel 1.6s ease-in-out infinite}
@keyframes wheel{0%{transform:translateY(0);opacity:1}70%{transform:translateY(7px);opacity:0}100%{opacity:0}}

.readout{position:absolute;z-index:5;right:34px;width:min(560px,44%);bottom:30px;display:flex;align-items:center;gap:12px;
  font:500 13px/1.3 var(--f);letter-spacing:.12em;text-transform:uppercase;color:#d6d6d3;
  padding:14px 18px 16px;background:rgba(10,10,11,.82);border:1px solid rgba(255,255,255,.08);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.ro-led{flex:0 0 auto;width:8px;height:8px;background:var(--red);transform:skewX(-20deg);box-shadow:0 0 10px var(--red)}
.readout.is-idle .ro-led{opacity:.55}
.readout.is-done .ro-led{background:#fff;box-shadow:0 0 10px rgba(255,255,255,.7)}
.ro-txt{flex:1 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ro-state{color:#fff;font-weight:600}
.ro-sep{color:var(--red);font-weight:600;padding:0 .25em}
.ro-num{display:inline-block;text-align:right;font-variant-numeric:tabular-nums}
.ro-bar{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(255,255,255,.08)}
.ro-bar i{display:block;height:100%;background:var(--red);transform-origin:0 50%;transform:scaleX(0);box-shadow:0 0 8px rgba(218,3,3,.8)}

/* colour swatches: appear once the chair is built */
.swatches{position:absolute;z-index:5;right:34px;top:84px;display:flex;flex-direction:column;align-items:flex-end;gap:10px;
  opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity .45s,transform .45s cubic-bezier(.2,.7,.2,1)}
.stage.is-built .swatches{opacity:1;transform:none;pointer-events:auto}
html:not(.js) .swatches,.rm .swatches,.no-gl .swatches{display:none}
.sw-label{font:500 11px/1 var(--f);letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.62)}
.sw-label b{color:#fff;font-weight:600;margin-left:.5em}
.sw-row{display:flex;gap:10px}
.sw{width:34px;height:34px;border-radius:50%;border:2px solid rgba(255,255,255,.18);background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.35),transparent 42%),var(--c);cursor:pointer;padding:0;transition:transform .2s,border-color .2s,box-shadow .2s}
.sw:hover{transform:scale(1.08)}
.sw.is-on{border-color:#fff;box-shadow:0 0 0 3px rgba(0,0,0,.5),0 0 18px color-mix(in srgb,var(--c) 70%,transparent)}
.sw:focus-visible{outline:2px solid #fff;outline-offset:3px}
.sw-shop{font:700 11px/1 var(--f);letter-spacing:.14em;text-transform:uppercase;color:#fff;border-bottom:1px solid var(--red);padding-bottom:4px}

/* no-JS / reduced motion / no WebGL: no pin, finished still */
html:not(.js) .hero,.rm .hero{height:auto}
html:not(.js) .hero-stick,.rm .hero-stick{position:relative;top:0}
.rm .still,.no-gl .is-scene .still{display:block}
.no-gl .is-scene .still{animation:stillin 1.2s ease both}
@keyframes stillin{from{opacity:0}to{opacity:1}}
.rm .intro,.rm .gl,.rm .stage-hint,.no-gl .gl{display:none}

/* ---------- strip + story ---------- */
.strip{background:#111113;border-top:1px solid #1d1d20;border-bottom:1px solid #1d1d20}
.strip-in{display:grid;grid-template-columns:repeat(4,1fr)}
.strip-in li{padding:30px 16px;text-align:center;font:600 14px/1 var(--f);letter-spacing:.14em;text-transform:uppercase;color:#fff;border-right:1px solid #1d1d20}
.strip-in li:last-child{border:0}
.story{background:#ecebe7;padding:110px 0}
.story-in{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end}
.kicker{font:700 12px/1 var(--f);letter-spacing:.22em;color:var(--red);display:flex;align-items:center;gap:14px;margin-bottom:20px}
.kicker::before{content:"";width:30px;height:2px;background:var(--red);transform:skewX(-30deg)}
.story h2{font:400 clamp(40px,5vw,72px)/.95 var(--f);letter-spacing:-.03em;text-transform:uppercase;color:#111}
.story p{font-size:17px;line-height:1.7;margin-bottom:28px;max-width:560px}
.foot{background:#28282f;color:#9a9aa2;font-size:13px;padding:26px 0}

/* ---------- twist cursor (fine pointers only): a red slash that turns into the X on links ---------- */
.cur{display:none}
.has-cur,.has-cur a,.has-cur button{cursor:none}
.has-cur .cur{display:block;position:fixed;left:0;top:0;z-index:100;pointer-events:none;opacity:0;transition:opacity .25s}
.has-cur .cur.on{opacity:1}
.cur-dot,.cur-ring{position:absolute;left:0;top:0}
.cur-dot{width:5px;height:5px;margin:-2.5px 0 0 -2.5px;border-radius:50%;background:#fff;mix-blend-mode:difference}
.cur-ring{width:30px;height:30px;margin:-15px 0 0 -15px}
.cur-ring::before,.cur-ring::after{content:"";position:absolute;left:50%;top:2px;bottom:2px;width:3px;margin-left:-1.5px;transition:transform .35s cubic-bezier(.3,1.5,.5,1),background .25s}
.cur-ring::before{background:rgba(255,255,255,.8);transform:rotate(-24deg) scaleY(.0)}
.cur-ring::after{background:var(--red);transform:rotate(24deg);box-shadow:0 0 8px rgba(218,3,3,.6)}
.cur.hot .cur-ring::before{transform:rotate(-24deg) scaleY(1)}
.cur.hot .cur-ring::after{transform:rotate(24deg) scaleY(1.1)}

/* ---------- tablet / mobile ---------- */
@media (max-width:1200px){.hdr-nav{gap:18px}.hdr-in{padding:0 28px}}
@media (max-width:991px){
  :root{--hh:64px}
  .hdr-in{grid-template-columns:auto 1fr auto;padding:0 14px}
  .hdr-burger{display:block}.hdr-nav,.hdr-acct{display:none}
  .hdr-logo{justify-self:center}.hdr-logo img{width:150px}
  .hero{height:auto}
  .hero-stick{position:relative;top:0;height:auto;min-height:0;flex-direction:column;overflow:visible}
  .hero-copy{flex:none;max-width:none;background:linear-gradient(180deg,#0c0c0e,#101012)}
  .hero-copy-in{padding:34px 22px 28px}
  .hero-kicker{font-size:12px;margin-bottom:14px}
  .hero-h1{font-size:clamp(40px,12.5vw,64px)}
  .hero-text{font-size:16px;margin-top:18px}
  .hero-btns{display:grid;grid-template-columns:1fr;margin-top:24px}
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;margin-top:26px}
  .hero-stats li{padding-top:14px;margin-right:0}
  .stage{position:relative;inset:auto;flex:none;aspect-ratio:1/1;margin:0 14px 28px;border:1px solid #1f1f22;
    background:radial-gradient(ellipse 70% 62% at 50% 50%,#2b2b2f 0,#1a1a1d 50%,#0e0e10 85%)}
  .stage-shade{display:none}
  .stage-tag{left:12px;right:auto;top:12px;font-size:9px;letter-spacing:.14em}
  .stage-hint{display:none}
  .readout{left:0;right:0;width:auto;bottom:0;padding:10px 10px 12px;font-size:10.5px;letter-spacing:.05em;gap:7px;border-width:1px 0 0}
  .ro-sep{padding:0 .1em}
  .ro-led{width:7px;height:7px}
  .swatches{right:10px;bottom:auto;top:34px;gap:7px}
  .sw{width:28px;height:28px}.sw-row{gap:7px;flex-direction:column}
  .sw-label{display:none}.sw-shop{display:none}
  .strip-in{grid-template-columns:repeat(2,1fr)}
  .strip-in li{padding:20px 8px;font-size:12px;border-bottom:1px solid #1d1d20}
  .story{padding:64px 0}.story-in{grid-template-columns:1fr;gap:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .hero{height:auto}.hero-stick{position:relative;top:0}
  .js .still{display:block}.js .intro,.js .gl,.stage-hint{display:none}
}