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var(--nav-h));display:flex;align-items:center}.akl3d-step>.wrap{width:100%}.akl3d-copy{max-width:480px}.akl3d-step h2{color:#fff;font-size:clamp(1.6rem,3vw,2.4rem);margin:14px 0 16px}.akl3d-step p{color:#ffffffbd;margin:0 0 20px}.akl3d-index{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#ffffff6b}.akl3d-index b{color:var(--teal-light);font-weight:500}.akl3d-specs{list-style:none;display:flex;flex-wrap:wrap;gap:7px;margin:0 0 22px;padding:0}.akl3d-specs li{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.05em;text-transform:uppercase;color:#ffffffb8;border:1px solid rgba(95,208,224,.32);border-radius:3px;padding:5px 9px;background:#17a2b817}.akl3d-rail{position:absolute;left:22px;top:50%;transform:translateY(-50%);z-index:3;display:flex;flex-direction:column;gap:9px}.akl3d-rail span{display:block;width:20px;height:2px;border-radius:1px;background:#ffffff38;transition:background .35s var(--ease),width .35s var(--ease)}.akl3d-rail span.done{background:#5fd0e073}.akl3d-rail span.on{background:var(--teal-light);width:34px}@media (max-width: 1100px){.akl3d-rail{display:none}}.akl3d-canvas[data-akal-3d=unavailable]{display:none}@media (prefers-reduced-motion: reduce){.akl3d-rail span{transition:none}}.subnav{position:sticky;top:var(--nav-h);z-index:40;background:#fffffff0;backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid var(--line)}.subnav .wrap{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;padding-top:10px;padding-bottom:10px}.subnav .wrap::-webkit-scrollbar{display:none}.subnav a{flex:0 0 auto;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);text-decoration:none;padding:8px 12px;border-radius:6px;white-space:nowrap;transition:color .25s var(--ease),background .25s var(--ease)}.subnav a:hover,.subnav a:focus-visible{color:var(--navy);background:var(--tint)}.subnav a.active{color:var(--teal-dim);background:var(--tint);box-shadow:inset 0 -2px 0 var(--teal)}.akl3d-shell{position:relative}.akl3d-intro{position:relative;z-index:2;overflow:clip}.akl3d-scroller{background:none}.akl3d-scroller:before{content:none}.akl3d-cue{display:inline-flex;align-items:center;gap:14px;margin-top:40px;padding:0;border:0;background:none;cursor:pointer;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--teal-light);transition:opacity .5s var(--ease),color .25s var(--ease)}.akl3d-cue:hover{color:#fff}.akl3d-cue.gone{opacity:0;pointer-events:none}.akl3d-cue i{position:relative;display:block;width:1px;height:42px;background:#5fd0e040;overflow:hidden}.akl3d-cue i:after{content:"";position:absolute;left:0;top:-42px;width:1px;height:42px;background:linear-gradient(to bottom,transparent,var(--teal-light));animation:akl3d-drop 1.9s var(--ease) infinite}@keyframes akl3d-drop{0%{transform:translateY(0)}70%{transform:translateY(84px)}to{transform:translateY(84px)}}.akl3d-progress{position:absolute;left:0;bottom:0;width:100%;height:2px;background:#ffffff1a;z-index:4}.akl3d-progress i{display:block;height:100%;width:0%;background:linear-gradient(to right,var(--teal),var(--teal-light));transition:width .12s linear}.akl3d-rail a{display:block;width:20px;height:2px;border-radius:1px;background:#ffffff38;transition:background .35s var(--ease),width .35s var(--ease)}.akl3d-rail a:hover,.akl3d-rail a:focus-visible{background:#fff;width:30px}.akl3d-rail a.done{background:#5fd0e073}.akl3d-rail a.on{background:var(--teal-light);width:34px}.akl3d-rail{pointer-events:auto}.akl3d-caption{position:absolute;left:22px;bottom:26px;z-index:3;pointer-events:none;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#ffffff80}.akl3d-caption b{color:var(--teal-light);font-weight:500}@media (max-width: 1100px){.akl3d-caption{left:16px;bottom:18px}}@media (prefers-reduced-motion: reduce){.akl3d-cue i:after{animation:none}.akl3d-progress i{transition:none}}.akl3d-flow{position:relative;z-index:2;margin-top:calc(-100vh + var(--nav-h))}.akl3d-cta{padding:96px 0 104px}.akl3d-cta .bracket-card{background:#041a30b8;backdrop-filter:saturate(150%) blur(6px);border-color:#5fd0e047;text-align:center}.akl3d-cta .bracket-card h2{color:#fff}.akl3d-cta .bracket-card .muted{color:#ffffffbd}.akl3d-cta .spec-tag{color:var(--teal-light);border-color:#5fd0e052;background:#17a2b81a}.akl3d-shell .site-footer{background:#021426db;backdrop-filter:saturate(140%) blur(4px);border-top:1px solid rgba(95,208,224,.18)}.akl3d-hud,.akl3d-caption,.akl3d-rail{transition:opacity .6s var(--ease)}.akl3d-sticky.at-rest .akl3d-hud,.akl3d-sticky.at-rest .akl3d-caption,.akl3d-sticky.at-rest .akl3d-rail{opacity:0;pointer-events:none}