.scale-media{background-image:url('/assets/cinematic/scale-shift-poster-micro.jpg')}
.scale-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .2s linear}
.scale-media[data-media-state='ready'] video{opacity:1}
.scale-media[data-media-state='paused'] video{opacity:.85}
.scale-disclosure{display:inline-block;margin-top:14px;border-inline-start:2px solid #7bd7f8;padding-inline-start:10px;color:#cde6f6;font-size:11px;letter-spacing:.03em}
.scale-motion-toggle{position:absolute;z-index:4;inset:auto 20px 16px auto;background:rgba(7,26,52,.82);color:#fff;border:1px solid rgba(255,255,255,.6);padding:8px 12px;min-height:40px;font-size:12px;font-weight:800;cursor:pointer}
[dir=rtl] .scale-motion-toggle{inset:auto auto 16px 20px}
.scale-motion-toggle:focus-visible{outline:3px solid #00a3e0;outline-offset:3px}
@media(max-width:720px){.scale-media video{object-position:center}.scale-motion-toggle{inset:auto 12px 10px auto}[dir=rtl] .scale-motion-toggle{inset:auto auto 10px 12px}}
@media(prefers-reduced-motion:reduce){.scale-media{background-image:url('/assets/cinematic/scale-shift-reduced-motion.jpg')}.scale-media video,.scale-motion-toggle{display:none}}
.scale-media[data-media-state='loading'] video,.scale-media[data-media-state='poster'] video{opacity:0}
.scale-media[data-media-state='seeking'] video,.scale-media[data-media-state='stalled'] video{opacity:1}

/* Native-scroll story: the final scroll pixel is the release boundary. */
.scale-track{height:500svh;position:relative;background:#071a34}
.scale-track .scale-hero{position:sticky;top:0;height:100svh;min-height:0;overflow:hidden;align-items:center}
.scale-track .scale-content{padding-top:118px;padding-bottom:180px}
.scale-track .scale-narrative{position:absolute;z-index:3;inset:auto 0 0;min-height:0;padding:0 0 22px;background:linear-gradient(transparent,rgba(7,26,52,.9));pointer-events:none}
.scale-track .scale-narrative .container{max-width:none}
.scale-track .scale-narrative .kicker{margin:0}
.scale-track .scale-phase-list{margin:10px 0 0}
.scale-track .scale-phase{padding-top:8px}
.scale-track .scale-phase h2{margin:3px 0 0;font-size:clamp(14px,1.5vw,21px)}
.scale-track .scale-narrative p:last-child{display:block;max-width:760px;font-size:11px;line-height:1.35;margin:7px 0 0;color:#d0e8f4}
.scale-track.bypassed{height:100svh}
.scale-track.bypassed .scale-hero{position:relative}
.technical-anchor{display:block;position:relative;top:-1px}
@media(max-width:800px){.scale-track .scale-content{padding-top:76px;padding-bottom:150px}.scale-track .scale-utility{display:none}.scale-track .scale-phase-list{grid-template-columns:repeat(5,minmax(0,1fr));gap:5px}.scale-track .scale-phase h2{font-size:11px;line-height:1.25}.scale-track .scale-phase span{font-size:9px}}
@media(max-width:540px){.scale-track{height:500svh}.scale-track .scale-hero{height:100svh;min-height:0}.scale-track .scale-content{padding-top:76px;padding-bottom:145px}.scale-track .scale-hero h1{font-size:clamp(38px,10vw,54px)}.scale-track .scale-hero .lead{font-size:15px;margin-top:12px}.scale-track .final-actions{margin-top:20px}.scale-track .scale-narrative{padding-bottom:12px}.scale-track .scale-phase-list{gap:3px}.scale-track .scale-phase h2{font-size:9px;overflow-wrap:anywhere}}
@media(prefers-reduced-motion:reduce){.scale-track{height:auto!important}.scale-track .scale-hero{position:relative;height:auto;min-height:560px}.scale-track .scale-content{padding-bottom:175px}.scale-track .scale-narrative{position:absolute}.scale-track .scale-phase{transition:none}}
.scale-track.static-story{height:auto}
.scale-track.static-story .scale-hero{position:relative;height:auto;min-height:560px}
/* Technical progression: one active decision at a time. */
.solve-sequence{position:relative;gap:2px;background:#c8d9e7;overflow:hidden}
.solve-sequence::before{content:"";position:absolute;z-index:2;inset:0 auto auto 0;width:var(--solve-width,0%);height:3px;background:#00a3e0;transition:width .12s linear}
[dir=rtl] .solve-sequence::before{inset:0 0 auto auto}
.solve-sequence li{position:relative;transition:background-color .45s ease,transform .45s ease,box-shadow .45s ease;transform:translateY(12px)}
.solve-sequence li.is-passed{background:#e5f3fa;transform:translateY(0)}
.solve-sequence li.is-active{background:#d5eff9;transform:translateY(0);box-shadow:inset 0 0 0 2px #00a3e0}
.layer-preview i{transition:transform .65s cubic-bezier(.2,.7,.2,1)}
.layer-preview i:nth-child(2){transform:translateY(calc(-40px - var(--assembly-offset,0px))) rotateX(60deg) rotateZ(-25deg)}
.layer-preview i:nth-child(3){transform:translateY(calc(-80px - var(--assembly-offset-long,0px))) rotateX(60deg) rotateZ(-25deg)}
.system-choice:hover,.system-choice:focus-visible{background:#e7f4fa}
.system-choice[aria-pressed=true]:hover,.system-choice[aria-pressed=true]:focus-visible{background:#0b3d91;color:white}
.history-band{position:relative}
.history-band::before{content:"";position:absolute;inset:0 auto auto 0;width:var(--history-width,0%);height:3px;background:#00a3e0}
[dir=rtl] .history-band::before{inset:0 0 auto auto}
.final-media-pending{background:repeating-linear-gradient(115deg,#e5eef4 0 1px,#e8f0f5 1px 14px)}
@media(prefers-reduced-motion:reduce){.solve-sequence li{transform:none;transition:none}.solve-sequence::before,.history-band::before{display:none}.layer-preview i{transition:none}}
.evidence-scope{grid-column:1/-1;border-top:1px solid #cbdbe6;padding-top:18px}
.evidence-scope summary{cursor:pointer;color:#0b3d91;font-weight:800;min-height:44px;display:flex;align-items:center}
.evidence-scope summary:focus-visible{outline:3px solid #00a3e0;outline-offset:3px}
.evidence-scope[open]{border-color:#00a3e0}
.evidence-scope p{max-width:760px}

@media(max-width:540px){.scale-track .scale-narrative p:last-child{font-size:9px;line-height:1.25}}
/* The image sequence takes the editorial lead after the opening frame. */
.scale-beat-display{position:absolute;z-index:2;inset:35% 7% auto;max-width:70%;color:#fff;opacity:0;transform:translateY(16px);transition:opacity .45s ease,transform .45s ease;pointer-events:none;text-shadow:0 2px 16px rgba(7,26,52,.55)}
.scale-beat-display span{display:block;font-size:13px;font-weight:800;letter-spacing:.14em;color:#7ed5f5}
.scale-beat-display strong{display:block;font-family:"Lato MCT","Open Sans MCT",sans-serif;font-size:clamp(60px,8vw,126px);line-height:1.05;letter-spacing:-.04em}
[dir=rtl] .scale-beat-display strong{font-family:"Noto Kufi MCT","Open Sans MCT",sans-serif;letter-spacing:0}
.scale-track.advanced .scale-beat-display{opacity:1;transform:translateY(0)}
.scale-track .scale-story>.kicker,.scale-track .scale-story>h1,.scale-track .scale-story>.lead,.scale-track .scale-story>.scale-disclosure,.scale-track .final-actions .button-light{transition:opacity .35s ease,transform .35s ease}
.scale-track.advanced .scale-story>.kicker,.scale-track.advanced .scale-story>h1,.scale-track.advanced .scale-story>.lead,.scale-track.advanced .scale-story>.scale-disclosure,.scale-track.advanced .final-actions .button-light{opacity:0;transform:translateY(-12px);pointer-events:none}
.scale-track.advanced .final-actions{position:absolute;inset:94px 24px auto auto;margin:0;z-index:4}
[dir=rtl] .scale-track.advanced .final-actions{inset:94px auto auto 24px}
.scale-track.advanced .final-actions .button-light{display:none}
.scale-track.advanced .final-actions .button-outline-light{background:rgba(7,26,52,.82)}
@media(max-width:800px){.scale-beat-display{inset:34% 7% auto;max-width:86%}.scale-beat-display strong{font-size:clamp(43px,8vw,84px)}}
@media(max-width:540px){
 .scale-beat-display{inset:35% 20px auto;max-width:calc(100% - 40px)}
 .scale-beat-display strong{font-size:clamp(40px,11vw,62px)}
 .scale-track.advanced .final-actions{inset:84px 12px auto auto}
 [dir=rtl] .scale-track.advanced .final-actions{inset:84px auto auto 12px}
 .scale-motion-toggle{inset:auto 12px 125px auto;min-height:44px}
 [dir=rtl] .scale-motion-toggle{inset:auto auto 125px 12px}
 .scale-track .scale-phase-list{position:relative;display:block;border-top:2px solid rgba(255,255,255,.35);padding-top:7px}
 .scale-track .scale-phase-list::before{content:"";position:absolute;inset:-2px auto auto 0;width:var(--story-width,0%);height:2px;background:#00a3e0}
 [dir=rtl] .scale-track .scale-phase-list::before{inset:-2px 0 auto auto}
 .scale-track .scale-phase{display:none;border:0;padding:0;opacity:1}
 .scale-track .scale-phase.active{display:flex;gap:9px;align-items:baseline}
 .scale-track .scale-phase h2{font-size:16px;margin:0}
 .scale-track .scale-phase span{font-size:11px}
 .scale-track .scale-narrative p:last-child{font-size:10px;max-width:85%;line-height:1.3}
}
@media(prefers-reduced-motion:reduce){.scale-beat-display{display:none}.scale-track .scale-story>.kicker,.scale-track .scale-story>h1,.scale-track .scale-story>.lead,.scale-track .scale-story>.scale-disclosure,.scale-track .final-actions .button-light{transition:none}}
/* A single editorial line carries the six technical decisions. */
.solve-sequence{display:grid;grid-template-columns:1fr;gap:0;background:transparent;border-inline-start:2px solid #c8d9e7;overflow:visible}
.solve-sequence::before{inset:0 auto auto -2px;width:3px;height:var(--solve-height,0%)}
[dir=rtl] .solve-sequence{border-inline-start:2px solid #c8d9e7}
[dir=rtl] .solve-sequence::before{inset:0 -2px auto auto}
.solve-sequence li{background:transparent;min-height:74px;border-bottom:1px solid #d3dfea;padding:12px 24px;display:flex;flex-direction:row;align-items:center;justify-content:flex-start;gap:clamp(20px,5vw,70px);transform:translateX(0);box-shadow:none}
.solve-sequence li span{min-width:34px;font-size:14px}
.solve-sequence li strong{font-size:clamp(18px,2.2vw,27px)}
.solve-sequence li.is-passed{background:transparent}
.solve-sequence li.is-active{background:#e5f3fa;transform:translateX(8px);box-shadow:inset 3px 0 #00a3e0}
[dir=rtl] .solve-sequence li.is-active{transform:translateX(-8px);box-shadow:inset -3px 0 #00a3e0}
@media(max-width:540px){.solve-sequence li{min-height:66px;padding:10px 14px}.solve-sequence li strong{font-size:18px}}
@media(prefers-reduced-motion:reduce){.solve-sequence li,.solve-sequence li.is-active{transform:none}}
.scale-exit{display:none;position:absolute;z-index:5;inset:94px 24px auto auto;background:rgba(7,26,52,.86)}
[dir=rtl] .scale-exit{inset:94px auto auto 24px}
.scale-track.advanced .scale-exit{display:inline-flex}
.scale-track.advanced .scale-story .final-actions{display:none}
.scale-exit:focus-visible{outline:3px solid #00a3e0;outline-offset:3px}
@media(max-width:540px){.scale-exit{inset:84px 12px auto auto;min-height:44px}[dir=rtl] .scale-exit{inset:84px auto auto 12px}}
.solve-sequence li::after{content:"";display:block;width:clamp(28px,5vw,60px);height:3px;margin-inline-start:auto;background:#00a3e0;clip-path:inset(0 100% 0 0);transition:clip-path .45s ease}
[dir=rtl] .solve-sequence li::after{clip-path:inset(0 0 0 100%)}
.solve-sequence li.is-active::after,.solve-sequence li.is-passed::after{clip-path:inset(0)}
@media(prefers-reduced-motion:reduce){.solve-sequence li::after{transition:none;clip-path:inset(0)}}