:root{color-scheme:light;--paper:#fafafa;--ink:#1d1d1f;--secondary:#6e6e73;--line:#dedee1;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue",Arial,sans-serif;font-synthesis:none;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
button,a{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid #0071e3;outline-offset:5px}
.hero{max-width:1240px;margin:0 auto;padding:88px 48px 12px;text-align:center}
.hero-copy{position:relative;z-index:2}
h1{margin:0;font-size:clamp(52px,16vw,210px);font-weight:650;letter-spacing:-.067em;line-height:1.02}
.hero-description{margin:26px auto 25px;max-width:640px;font-size:clamp(18px,2.1vw,25px);font-weight:400;letter-spacing:-.028em;line-height:1.4}
.download-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:13px 21px;border-radius:28px;background:var(--ink);color:#fff;font-size:14px;font-weight:500;line-height:1.5;transition:background .18s,transform .18s}
.download-button:hover{background:#363638;transform:translateY(-1px)}
.download-button svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}
.purchase-note{margin:13px 0 0;color:var(--secondary);font-size:12px;line-height:1.5}
.hero-stage{position:relative;width:min(100%,1000px);height:530px;margin:10px auto 0}
.model-viewer{position:relative;width:100%;height:100%;isolation:isolate}
#closeup{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:0;cursor:grab;transition:opacity .45s}
#closeup:active{cursor:grabbing}
.model-fallback{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;max-width:470px;margin:auto;opacity:.5;pointer-events:none}
.model-viewer[data-state="ready"] #closeup{opacity:1}
.model-viewer[data-state="ready"] .model-fallback{display:none}
.model-viewer[data-state="fallback"] .model-fallback{opacity:1}
.model-viewer[data-state="fallback"] .specimen-notes,.model-viewer[data-state="fallback"] .specimen-lines{display:none}
.specimen-lines{position:absolute;inset:0;width:100%;height:100%;z-index:2;overflow:visible;pointer-events:none}
.specimen-lines path{fill:none;stroke:#b4b5b9;stroke-width:.75}
.specimen-lines circle{fill:var(--paper);stroke:#a3a4aa;stroke-width:.8}
.specimen-lines .is-active path{stroke:#777980}
.specimen-lines .is-active circle{fill:#777980;stroke:#777980}
.specimen-lines .is-hidden{opacity:0}
.specimen-notes{position:absolute;inset:0;margin:0;padding:0;list-style:none;z-index:3;pointer-events:none;text-align:left}
.specimen-note{position:absolute;width:170px;color:var(--secondary);transition:opacity .3s,color .3s}
.specimen-number{display:block;margin:0 0 9px;font-size:10px;font-variant-numeric:tabular-nums;letter-spacing:.1em;color:#9b9ba1}
.specimen-note strong{display:block;font-size:11px;line-height:1.5;font-weight:600;letter-spacing:.005em}
.specimen-note p{margin:4px 0 0;font-size:11px;line-height:1.5;color:var(--secondary)}
.specimen-note.is-active{color:var(--ink)}
.specimen-note.is-obscured{opacity:.4}
.note-antennae{right:0;top:70px}
.note-wings{left:0;top:220px}
.note-legs{right:0;bottom:52px}
.note-shadow{left:0;bottom:30px}
.specimen-status{position:absolute;bottom:0;width:100%;font-size:12px;color:var(--secondary)}
.model-viewer[data-state="ready"] .specimen-status{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
footer{max-width:1144px;margin:24px auto 0;padding:34px 24px 112px;border-top:1px solid #e8e8eb;text-align:center}
.platforms{display:flex;align-items:center;justify-content:center;gap:36px;flex-wrap:wrap}
.platforms a{padding:9px 0;color:var(--secondary);font-size:13px;line-height:1.5;transition:color .2s}
.platforms a:hover,.platforms a.recommended{color:var(--ink)}
.platforms a:hover{text-decoration:underline;text-underline-offset:4px}
.copyright{margin:25px 0 0;font-size:11px;line-height:1.5;color:#99999f}
.guest-controls{position:fixed;z-index:30;right:24px;bottom:22px;display:flex;align-items:center;gap:2px;padding:5px 8px 5px 15px;border:1px solid #dedee1;border-radius:28px;background:#fafafaf2;backdrop-filter:blur(20px);box-shadow:0 3px 16px #00000006}
.control-count{min-width:48px;margin-right:6px;color:var(--secondary);font-size:11px;font-variant-numeric:tabular-nums}
.guest-controls button{display:flex;align-items:center;justify-content:center;gap:6px;min-width:32px;height:32px;padding:0 8px;border:0;border-radius:18px;background:transparent;font-size:18px;line-height:1}
.guest-controls button:hover{background:#eaeaec}
.guest-controls button:disabled{opacity:.3;cursor:default}
.control-divider{width:1px;height:15px;margin:0 6px;background:var(--line)}
.guest-controls #motion-toggle{min-width:76px;font-size:11px;font-weight:500}
#motion-symbol{font-size:14px}
#guests{position:fixed;inset:0;z-index:20;width:100%;height:100%;pointer-events:none}
.toast{position:fixed;z-index:40;left:50%;bottom:80px;max-width:calc(100% - 40px);padding:11px 18px;border-radius:20px;color:#fff;background:#1d1d1fe8;font-size:12px;text-align:center;opacity:0;transform:translate(-50%,8px);transition:opacity .2s,transform .2s;pointer-events:none}
.toast.visible{opacity:1;transform:translate(-50%,0)}
dialog{width:min(440px,calc(100% - 40px));max-height:calc(100dvh - 40px);padding:44px 32px 28px;border:1px solid #e2e2e5;border-radius:24px;background:var(--paper);color:var(--ink);box-shadow:0 24px 80px #0002}
dialog::backdrop{background:#0003;backdrop-filter:blur(10px)}
.dialog-close{position:absolute;top:12px;right:16px;border:0;background:transparent;color:var(--secondary);font-size:25px}
dialog h2{margin:0;font-size:29px;line-height:1.15;font-weight:600;letter-spacing:-.05em}
dialog p{color:var(--secondary);font-size:14px;line-height:1.6}
dialog .dialog-preview{margin-top:25px;font-size:12px;color:#89898e}
.dialog-done{margin-top:7px;padding:10px 19px;border:0;border-radius:24px;background:var(--ink);color:#fff;font-size:13px}
@media(min-width:1600px){.hero{padding-top:100px}.hero-stage{height:570px}}
@media(max-width:780px){
  .hero{padding:76px 24px 0}
  h1{font-size:16vw;letter-spacing:-.065em}
  .hero-description{max-width:360px;margin-top:23px;font-size:20px}
  .hero-stage{height:470px;margin-top:20px}
  .specimen-note{width:120px}.specimen-note strong,.specimen-note p{font-size:11px}.specimen-number{font-size:9px;margin-bottom:6px}
  .note-antennae{top:40px}.note-wings{top:200px}.note-legs{bottom:40px}.note-shadow{bottom:12px}
  footer{margin:30px 24px 0;padding:27px 0 110px}
}
@media(max-width:520px){
  .hero{padding-top:70px;padding-inline:20px}
  .hero-description{max-width:290px;font-size:18px;margin-top:21px;margin-bottom:23px}
  .purchase-note{font-size:11px}
  .hero-stage{height:420px;margin-top:28px}
  .specimen-note{width:98px}.specimen-note strong{font-size:11px}.specimen-note p{display:none}
  .note-antennae{top:24px}.note-wings{top:38%}.note-legs{bottom:28px}.note-shadow{bottom:0}
  .platforms{gap:26px}
  .guest-controls{left:50%;right:auto;bottom:16px;transform:translateX(-50%);white-space:nowrap}
  footer{margin-top:30px}
}

/* Quiet reading pages share the landing page's typography and palette. */
.footer-links{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin-top:22px}
.footer-links a{color:var(--secondary);font-size:12px;line-height:1.6}
.footer-links a:hover{text-decoration:underline;text-underline-offset:4px}
.document-nav{max-width:1040px;margin:0 auto;display:flex;align-items:center;gap:25px;padding:30px 28px;font-size:13px;color:var(--secondary)}
.document-nav .wordmark{margin-right:auto;font-size:24px;font-weight:650;letter-spacing:-.06em;color:var(--ink)}
.document-nav a:hover{color:var(--ink)}
.document-content{max-width:736px;margin:58px auto 80px;padding:0 28px}
.document-content h1{font-size:clamp(52px,8vw,76px);letter-spacing:-.06em;line-height:1.05}
.document-content .document-intro{font-size:22px;letter-spacing:-.025em;color:var(--ink);line-height:1.4;margin:18px 0 30px}
.document-content p,.document-content dd{font-size:16px;line-height:1.75;color:#515155;margin:0 0 18px}
.document-content .document-date{font-size:12px;color:var(--secondary);margin-top:-12px;margin-bottom:28px}
.document-content section{margin-top:44px}
.document-content h2{font-size:24px;line-height:1.25;letter-spacing:-.035em;font-weight:600;margin:0 0 17px}
.document-content dl{margin:0}
.document-content dt{font-size:16px;line-height:1.5;font-weight:600;margin:25px 0 7px}
.document-content dd{margin-left:0}
.document-content a{color:#0066cc;text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}
.document-content kbd,.document-content code{font:inherit;font-size:.9em;background:#eeeef0;border-radius:4px;padding:2px 5px}
.document-footer{max-width:680px;padding:0 28px 45px;margin:0 auto}
.document-footer .copyright{margin-top:18px}
@media(max-width:520px){.document-nav{padding:24px 22px;gap:18px}.document-nav .wordmark{font-size:22px}.document-content{margin-top:36px;padding:0 22px}.document-content .document-intro{font-size:20px}.document-content section{margin-top:35px}.document-footer{padding-bottom:35px}}