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body.reduced #journey,html:not(.js) #journey{height:auto}body.reduced .chapter,html:not(.js) .chapter{height:100svh;min-height:0!important;padding-top:25svh}body.reduced .chapter.hero,html:not(.js) .chapter.hero{height:110svh}body.reduced .chapter:not(.hero) .chapter-content>p{display:block}
/* The first visible frame is already the photographic composition. */
.entry{background:linear-gradient(0deg,#102a2699,transparent 65%);color:#fff}.entry-center{margin:auto 0 24px;align-self:flex-start;text-align:left;padding-left:2vw}.entry-center>p:first-of-type{font-size:27px;letter-spacing:-1px}.entry-count{font-size:62px;line-height:1.2;letter-spacing:-.06em}.entry-count small{font-size:15px;padding-top:9px}.wind-orbit,.entry-center:before{display:none}#load-stage{color:#fff;font-size:12px;margin-top:14px}.entry>button{align-self:flex-start;margin-left:2vw;color:#fff;border-color:#ffffff77}.entry-top{text-shadow:0 2px 12px #102a26}
@media(max-width:760px){.hero .eyebrow{display:none}.hero-intro{margin-top:20px}.hero-copy .primary-link{margin-top:14px}#pilot-grab span{top:auto;bottom:100%;transform:translate(-50%,-12px)}}
@media(max-width:760px) and (max-height:720px){.hero h1{font-size:36px}.hero-intro{font-size:12px;margin-top:8px}.hero-copy .primary-link{margin-top:8px;min-height:44px}}

/* VENTO: detached flight instruments; the scene stays open between controls. */
.flight-instruments{inset:0;width:auto;padding:0;display:block;transform:none;border:0;border-radius:0;background:none;backdrop-filter:none;pointer-events:none}
.flight-readout{position:absolute;left:32px;bottom:28px;width:250px;padding:0;pointer-events:auto;text-shadow:0 1px 4px #10221e,0 0 12px #10221e}
.flight-stage{display:grid;grid-template-columns:1fr auto;gap:7px 12px;font-size:13px;align-items:end}
#stage-number,.route-line{display:none}#stage-name{min-width:0;max-width:170px;line-height:1.4}.altitude{font-size:10px;margin:0;white-space:nowrap;opacity:1}.altitude b{font-size:13px}
.journey-scrub{width:100%;height:44px;gap:12px;margin-top:5px}.journey-scrub input{appearance:none;-webkit-appearance:none;width:100%;min-width:0;height:44px;background:transparent;margin:0;cursor:ew-resize}.journey-scrub input::-webkit-slider-runnable-track{height:2px;background:#f4f6ecb3}.journey-scrub input::-webkit-slider-thumb{appearance:none;width:10px;height:10px;margin-top:-4px;border:0;border-radius:50%;background:#ffbe80;box-shadow:0 0 0 4px #152c2655}.journey-scrub input::-moz-range-track{height:2px;background:#f4f6ecb3}.journey-scrub input::-moz-range-thumb{width:10px;height:10px;border:0;background:#ffbe80}.journey-scrub output{font-size:11px;min-width:32px}
.control-row{position:absolute;right:28px;bottom:28px;display:flex;flex-direction:column;gap:9px;pointer-events:auto}
.control-row button{position:relative;display:grid;place-items:center;width:44px;height:44px;min-height:44px;padding:0;border-radius:50%;background:#172b25;color:#f7f8f1;transition:background .2s,transform .2s;margin:0!important}
.control-row button:hover{background:#304c40;transform:translateX(-2px)}.control-row button[aria-pressed=true]{background:#f4b777;color:#172b25}.control-row svg{width:19px;height:19px}.control-tip{position:absolute;right:54px;white-space:nowrap;padding:7px 11px;border-radius:4px;background:#172b25;color:#f7f8f1;font-size:12px;opacity:0;transform:translateX(4px);pointer-events:none;transition:opacity .15s,transform .15s}
.control-row button:hover .control-tip,.control-row button:focus-visible .control-tip{opacity:1;transform:none}.play-glyph{display:none}#pause-toggle[aria-pressed=true] .play-glyph{display:block}#pause-toggle[aria-pressed=true] .pause-glyph{display:none}.in-notes .flight-instruments{transform:none;visibility:hidden}
@media(max-width:760px){.flight-readout{left:20px;bottom:max(16px,env(safe-area-inset-bottom));width:min(230px,calc(100vw - 110px))}.flight-stage{font-size:11px;gap:5px 10px}.altitude b{font-size:11px}.altitude{font-size:9px}.control-row{right:16px;bottom:max(20px,env(safe-area-inset-bottom));gap:8px}.journey-scrub{width:100%}.journey-scrub input{width:100%}.control-row button{font-size:11px}.control-tip{font-size:12px}}
@media(prefers-reduced-motion:reduce){.control-row button,.control-tip{transition:none}}

/* Canonical REELM wordmark, adapted to the light footer. */
.footer-reelm{display:inline-flex;align-items:center;min-height:44px;flex-shrink:0;border-radius:2px}
.footer-reelm img{display:block;width:54.4px;height:auto;filter:grayscale(1);opacity:.58;transition:filter .24s ease-out,opacity .24s ease-out}
.footer-reelm:hover img,.footer-reelm:focus-visible img,.footer-reelm:active img{filter:grayscale(0);opacity:1}
.footer-reelm:focus-visible{outline:2px solid #e9a23b;outline-offset:6px}

@media(prefers-reduced-motion:reduce){.footer-reelm img{transition:none}}

/* The thermal model shares one viewport when it leaves the diagram. */
.thermal-flight-canvas{position:fixed;inset:0;z-index:12;pointer-events:none;display:block}
.thermal-flight-canvas[hidden]{display:none}
.thermal-3d-ready #thermal-glider{opacity:0}
#thermal-flight-status{font-size:12px;line-height:1.5;color:#2d5140;min-height:36px;margin:14px 0 5px;max-width:42ch}
.lab-visual[data-flight-state="flying"] #thermal-streams{stroke-width:1.8}
@media(prefers-reduced-motion:reduce){.thermal-flight-canvas{display:none}.thermal-3d-ready #thermal-glider{opacity:1}}
body.reduced .thermal-flight-canvas{display:none}body.reduced .thermal-3d-ready #thermal-glider{opacity:1}

/* Reading keeps sound within reach; the flight retains its original controls. */
#header-audio-toggle{display:none;flex:0 0 44px;width:44px;height:44px;align-items:center;justify-content:center;border-radius:50%;color:var(--ink);transition:background .18s}
.in-notes #header-audio-toggle{display:inline-flex;animation:header-audio-in .22s ease-out both}
#header-audio-toggle:hover{background:#253c3510}
#header-audio-toggle svg{width:21px;height:21px}
#header-audio-toggle[aria-pressed=true]{color:var(--ink)}
#header-audio-toggle .audio-waves,.sound-on #header-audio-toggle .audio-muted{display:none}
.sound-on #header-audio-toggle .audio-waves{display:block}
@keyframes header-audio-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:760px){.in-notes #cinema-toggle{display:none}.in-notes .header-shortcuts{gap:8px}}
body.reduced #header-audio-toggle{animation:none}
/* Entry screen with the flight route drawn by loading progress. html.vento-boot shows it from the first paint, before app.js runs. */
html.preparing{overflow:hidden}html.vento-boot #entry[hidden]{display:flex!important}
.entry-route{position:absolute;right:5vw;top:50%;height:min(50vh,460px);aspect-ratio:100/126.3;transform:translateY(-52%)}.entry-route svg{display:block;width:100%;height:100%;overflow:visible}
.route-base{fill:none;stroke:#ffffff66;stroke-width:.35;stroke-dasharray:.7 1.1}.route-live{fill:none;stroke:#fff;stroke-width:.75;stroke-linecap:round;stroke-linejoin:round}.route-head{fill:#b44223;stroke:#fff;stroke-width:.45}
.route-mark{position:absolute;left:calc(var(--x)*1%);top:calc(var(--y)/126.3*100%);transform:translate(12px,-50%);font-size:11px;letter-spacing:.04em;white-space:nowrap;text-shadow:0 1px 8px #102a26;opacity:clamp(.4,(var(--q,0) - var(--at))*40 + 1,1)}
.route-mark:before{content:'';position:absolute;left:-12px;top:50%;width:5px;height:5px;border-radius:50%;background:#fff;transform:translate(-50%,-50%)}.route-mark.left{transform:translate(calc(-100% - 12px),-50%)}.route-mark.left:before{left:auto;right:-12px;transform:translate(50%,-50%)}.route-mark.below{transform:translate(-50%,12px)}.route-mark.below:before{left:50%;top:-12px}
@media(max-width:760px){.entry-route{right:50%;top:16svh;height:26svh;transform:translateX(50%)}.route-mark,.route-mark.left,.route-mark.below{left:50%;top:-22px;transform:translate(-50%,-100%);font-size:12px;opacity:calc(clamp(0,(var(--q,0) - var(--at))*40 + 1,1)*clamp(0,(var(--next) - var(--q,0))*40,1))}.route-mark:before{display:none}}