/* Home scroll story: pinned stage with Three.js scene (right) and chapter copy (left). */
.home .site-footer{margin-top:0}
.story{padding:0;position:relative}
.story-stage{position:relative;height:calc(100vh - var(--hdr,65px));height:calc(100svh - var(--hdr,65px));min-height:520px;overflow:hidden;background:var(--bg)}
.story-bg{position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(60% 70% at 70% 52%,rgba(46,230,166,.10),transparent 70%),
    radial-gradient(40% 50% at 78% 60%,rgba(46,230,166,.06),transparent 75%),
    radial-gradient(90% 80% at 20% 100%,rgba(28,36,48,.55),transparent 70%),
    linear-gradient(180deg,#0B0F14 0%,#0C1117 60%,#0B0F14 100%)}
.story-bg::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(42,52,65,.22) 1px,transparent 1px),linear-gradient(90deg,rgba(42,52,65,.22) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(55% 60% at 70% 50%,#000 0%,transparent 75%);mask-image:radial-gradient(55% 60% at 70% 50%,#000 0%,transparent 75%);opacity:.35}
.story-grid{position:relative;height:100%;max-width:1360px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:minmax(320px,.78fr) 1.22fr;gap:24px}
.story-copy{position:relative;align-self:stretch;z-index:2;display:flex;align-items:center;padding-left:28px}
.chapters{display:grid;width:100%}
.story-copy .chapter{grid-area:1/1;max-width:30em;align-self:center}
.story-copy .chapter:not([data-chapter="0"]){opacity:0;visibility:hidden}
.story-copy h2{font-size:clamp(30px,3.6vw,46px);font-weight:800;line-height:1.15;margin-bottom:.45em}
.story-copy h2 em{font-style:normal;color:var(--accent)}
.story-copy .lead{font-size:clamp(17px,1.5vw,19px);max-width:26em}
.story-rail{position:absolute;left:0;top:22%;bottom:22%;width:2px;background:var(--border);border-radius:2px;overflow:hidden}
.story-rail-fill{position:absolute;inset:0;background:var(--accent);transform-origin:50% 0;transform:scaleY(0)}
.story-hint{position:absolute;left:28px;bottom:28px;margin:0;display:flex;gap:18px;font-size:13px;color:var(--text2);letter-spacing:.02em}
.story-hint span{display:inline-flex;align-items:center;gap:8px}
.story-hint span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.8}
.hint-drag{display:none!important}
.can-drag .hint-drag{display:inline-flex!important}
.story-canvas{position:relative;height:100%;min-width:0;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 7%,#000 95%,transparent 100%);mask-image:linear-gradient(90deg,transparent 0,#000 7%,#000 95%,transparent 100%)}
.story-canvas canvas{display:block;width:100%!important;height:100%!important;outline:none}
.can-drag .story-canvas{cursor:grab;touch-action:pan-y}
.can-drag .story-canvas.dragging{cursor:grabbing}
.story-fallback{display:none;align-items:center;justify-content:center;height:100%}
.no-webgl .story-canvas{display:none}
.no-webgl .story-fallback{display:flex}

/* reduced motion / no-webgl: no pin, chapters listed */
.story-static .story-stage{height:auto;min-height:0;padding:72px 0}
.story-static .story-grid{height:auto;align-items:center}
.story-static .chapters{display:block}
.story-static .story-copy .chapter{opacity:1!important;visibility:visible!important;margin-bottom:34px}
.story-static .story-rail,.story-static .story-hint{display:none}
.story-static .story-canvas{height:min(70vh,620px)}

@media (max-width:900px){
  .story-stage{min-height:560px}
  .story-grid{grid-template-columns:1fr;grid-template-rows:minmax(0,40%) minmax(0,60%);gap:0;padding:0 18px}
  .story-copy{align-items:flex-end;padding:30px 0 4px}
  .story-copy .chapter{max-width:none;align-self:end}
  .story-copy h2{font-size:clamp(25px,7vw,34px);margin-bottom:.35em}
  .story-copy .lead{font-size:16px;line-height:1.55;margin-bottom:.5em}
  .story-copy .small{font-size:13px;line-height:1.5;margin:0}
  .story-copy .eyebrow{margin-bottom:8px}
  .story-rail{left:0;right:0;top:16px;bottom:auto;width:auto;height:2px}
  .story-rail-fill{transform-origin:0 50%;transform:scaleX(0)}
  .story-hint{display:none}
  .story-canvas{-webkit-mask-image:linear-gradient(180deg,transparent 0,#000 8%,#000 94%,transparent 100%);mask-image:linear-gradient(180deg,transparent 0,#000 8%,#000 94%,transparent 100%)}
  .story-static .story-stage{padding:48px 0}
  .story-static .story-grid{grid-template-rows:auto auto}
  .story-static .story-canvas{height:420px}
}