*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0a0a0f;--ink: #f2f2f4;--muted: rgba(242, 242, 244, .52);--line: rgba(242, 242, 244, .12);--accent: #e8985a;--accent-soft: rgba(232, 152, 90, .14);--mono: "IBM Plex Mono", ui-monospace, monospace;--sans: "Manrope", system-ui, sans-serif}html{scroll-behavior:smooth}html,body{min-height:100%;background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}body{overflow-x:hidden;overflow-y:auto}.hidden{display:none!important}.stage{position:relative;height:100vh;height:100dvh;overflow:hidden}#canvas-container{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;background:radial-gradient(circle at center,transparent 0%,rgba(0,0,0,.4) 100%)}#canvas-container canvas{display:block;width:100%!important;height:100%!important}.loading-screen{position:absolute;top:0;right:0;bottom:0;left:0;z-index:40;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;background:#0a0a0f;transition:opacity .45s ease,visibility .45s ease}.loading-screen.is-done{opacity:0;visibility:hidden;pointer-events:none}.loading-screen__ring{width:52px;height:52px;border-radius:50%;border:2px solid rgba(232,152,90,.18);border-top-color:var(--accent);animation:lp-spin .85s linear infinite}.loading-screen__bar{width:min(220px,55vw);height:3px;border-radius:999px;background:#ffffff14;overflow:hidden}.loading-screen__fill{width:0%;height:100%;background:linear-gradient(90deg,#e8985a,#ffc085);transition:width .15s ease-out}.loading-screen__pct{font-family:var(--mono);font-size:.8rem;letter-spacing:.12em;color:#ffffff73;font-variant-numeric:tabular-nums}@keyframes lp-spin{to{transform:rotate(360deg)}}.start-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:20;cursor:pointer;background:transparent}.start-overlay.hidden{display:none;pointer-events:none}.scroll-hint{position:absolute;left:50%;bottom:max(28px,env(safe-area-inset-bottom));transform:translate(-50%);z-index:25;width:44px;height:64px;border:none;background:transparent;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .6s ease}.scroll-hint.is-visible{opacity:1;pointer-events:auto}.scroll-hint.hidden{display:none}.scroll-hint__line{display:block;width:1px;height:36px;margin:0 auto;background:linear-gradient(180deg,transparent,var(--accent));animation:hint-pulse 1.6s ease-in-out infinite}@keyframes hint-pulse{0%,to{transform:scaleY(.7);opacity:.35}50%{transform:scaleY(1);opacity:1}}.scroll-track{height:420vh}.stage--sticky{position:sticky;top:0;height:100vh;height:100dvh}.protocol-panel{position:absolute;top:max(20px,env(safe-area-inset-top));right:max(16px,env(safe-area-inset-right));z-index:30;width:min(360px,calc(100vw - 32px));display:flex;flex-direction:column;gap:14px;opacity:0;transform:translate(24px);pointer-events:none;transition:opacity .45s ease,transform .45s ease}.protocol-panel.is-visible{opacity:1;transform:translate(0);pointer-events:auto}.protocol-panel .protocol-rail{max-height:min(38vh,320px)}.active-card{padding:20px 20px 18px;border:1px solid var(--line);border-radius:16px;background:#08080cb8;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);min-height:148px}.active-card.is-empty{display:grid;place-items:center}.active-card__empty{margin:0;color:var(--muted);font-size:.92rem}.active-card__code{font-family:var(--mono);font-size:.75rem;letter-spacing:.08em;color:var(--accent);margin-bottom:6px}.active-card__name{margin:0 0 14px;font-size:1.35rem;letter-spacing:-.02em}.active-card__meta{margin:0;display:grid;gap:8px}.active-card__meta div{display:grid;grid-template-columns:4.5rem 1fr;gap:10px}.active-card__meta dt{font-family:var(--mono);font-size:.62rem;letter-spacing:.1em;color:#f2f2f459}.active-card__meta dd{margin:0;color:var(--muted);font-size:.92rem;line-height:1.45}.protocol-rail{display:flex;flex-direction:column;gap:4px;max-height:min(48vh,420px);overflow:auto;padding-right:4px;border:1px solid var(--line);border-radius:14px;background:#08080cad;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.rail-item{display:grid;grid-template-columns:7.5rem 1fr;gap:12px;align-items:center;width:100%;text-align:left;border:none;border-bottom:1px solid rgba(255,255,255,.05);background:transparent;color:inherit;font:inherit;padding:12px 14px;cursor:pointer;transition:background .15s ease,opacity .15s ease}.rail-item:last-child{border-bottom:none}.rail-item:hover{background:var(--accent-soft)}.rail-item.is-active{background:var(--accent-soft);box-shadow:inset 2px 0 0 var(--accent)}.rail-item.is-related{background:#e8985a12}.rail-item.is-dim{opacity:.35}.rail-item__code{font-family:var(--mono);font-size:.68rem;letter-spacing:.04em;color:var(--accent);word-break:break-word}.rail-item__name{font-size:.92rem;font-weight:600}.cta{display:inline-flex;align-items:center;justify-content:center;align-self:start;min-height:48px;padding:0 22px;border-radius:999px;background:var(--accent);color:#1a0f08;font-weight:700;text-decoration:none;transition:transform .15s ease,background .15s ease}.cta:hover{transform:translateY(-1px);background:#ffc085}.cta:focus-visible{outline:2px solid #ffc085;outline-offset:3px}.float-mute-btn{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));z-index:50;width:56px;height:56px;border:1px solid rgba(255,255,255,.18);border-radius:999px;background:#0c0c14b8;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:#fff;display:grid;place-items:center;cursor:pointer;box-shadow:0 8px 28px #00000059}.float-mute-btn svg{width:22px;height:22px;grid-area:1 / 1}.float-mute-btn .icon-sound-off,.float-mute-btn.muted .icon-sound-on{display:none}.float-mute-btn.muted .icon-sound-off{display:block}.float-mute-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}.loading-screen__ring,.scroll-hint__line{animation:none!important}}@media (max-width: 860px){.protocol-panel{left:max(12px,env(safe-area-inset-left));right:max(12px,env(safe-area-inset-right));width:auto}.protocol-panel .protocol-rail{max-height:min(32vh,260px)}.rail-item{grid-template-columns:6.5rem 1fr}}