/* Approved dark exhibition world; preserve the original 3D prologue choreography. */
body{background:var(--space);color:var(--text);font-family:var(--font-body)}#backdrop{background:var(--space)}
header{left:4vw;right:4vw;top:32px;mix-blend-mode:normal;color:var(--text)}#brand.mission-brand{font-family:var(--font-display);font-size:23px;font-weight:500;letter-spacing:-.04em}#brand.mission-brand span{font-size:11px;letter-spacing:.16em;vertical-align:baseline;padding-left:16px}
.header-right{gap:24px}.header-right #play{font:400 12px/1.5 var(--font-body);min-width:88px;min-height:46px;padding:12px 20px;display:inline-flex;justify-content:center}.header-entry{display:none}body[data-prologue-active=true] .header-entry{display:inline-flex}
h1{top:16%;left:6.5%;font-family:var(--font-body);font-size:clamp(52px,7vw,96px);font-weight:500;line-height:1.2;letter-spacing:-.04em;color:var(--text);margin:0}h1 span{font:inherit;letter-spacing:inherit;color:var(--accent)}
.intro-copy{left:66%;top:43%;width:28%}.intro-copy p{font-size:clamp(24px,2.2vw,34px);line-height:1.55;letter-spacing:-.025em;margin:0 0 20px;font-weight:400}.body-copy{color:var(--muted);font-size:13px;line-height:1.9}.journey-route{color:var(--muted);font-size:11px;margin-top:28px;white-space:nowrap}.entry-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:22px}.entry-actions .mission-button{margin:0;font-size:13px;min-height:46px;padding:13px 22px;transform:none}.intro a,.intro button{pointer-events:auto}.story-preview{color:var(--muted);font-size:12px}.intro-copy p.journey-duration,#outro p.journey-duration{font-size:11px;font-weight:400;letter-spacing:0;line-height:1.8;color:var(--muted);margin:16px 0 0}
#tablet{background:linear-gradient(120deg,#4c5e60,#101719 5%,#080d0f 95%,#405254);box-shadow:0 28px 60px #0007,inset 0 0 0 1px #71838565}.caption{bottom:10%;color:var(--muted);font-size:10px;letter-spacing:.03em}
#transport{left:4vw;right:4vw;bottom:28px;mix-blend-mode:normal;color:var(--muted);gap:16px}.coordinates{font-size:10px;min-width:0;gap:14px;letter-spacing:.04em}#stage-number{border:0;border-right:1px solid var(--line);width:auto;height:auto;padding-right:14px;font-family:var(--font-display);font-size:12px}.progress-track{margin-left:auto;width:90px;background:var(--line)}#progress-fill{background:var(--accent)}#progress-text{font-size:10px;color:var(--muted)}
#crossing{font-family:var(--font-body);font-size:clamp(30px,5vw,72px);letter-spacing:.05em;line-height:1.6}
#ending h2,.robot-visor #ending h2{font-family:var(--font-body);font-weight:500;letter-spacing:-.03em;font-size:clamp(30px,4vw,60px);line-height:1.4}.robot-visor #ending h2{top:17%}.robot-visor #ending .mission-button{position:absolute;bottom:10%;left:50%;transform:translateX(-50%)}#ending p{font-size:13px;color:var(--text);background:transparent;border-radius:0}
#outro{background:var(--space);color:var(--text);padding:19vh 8vw 10vh}#outro h2{font:500 clamp(40px,5.7vw,80px)/1.35 var(--font-body);letter-spacing:-.035em;margin:0 0 28px}#outro h2 em{font:inherit;color:var(--accent)}#outro p{font-size:15px;line-height:1.9;color:var(--muted)}#outro .entry-actions{margin-top:30px}.outro-foot{color:var(--muted);font-size:9px;letter-spacing:.03em;bottom:11vh}
#loading{background:#10191deb;color:var(--muted);font-size:12px;letter-spacing:.03em;border-radius:4px;padding:14px 22px}#loading span{background:var(--accent)}#error{background:#111a1c;color:var(--text);border-color:var(--line);font-size:14px}
@media(max-width:1100px) and (min-width:751px){.intro-copy{left:65%;top:40%;width:31%}.intro-copy p{font-size:25px}.entry-actions{gap:18px}.entry-actions .mission-button{padding-inline:18px}.journey-route{font-size:10px}}
@media(max-width:750px){header{top:22px;left:22px;right:22px}#brand.mission-brand{font-size:19px;gap:12px}#brand.mission-brand span{font-size:10px;padding-left:12px}.header-right{gap:14px}.header-entry{font-size:11px}.header-right #play{padding:10px 14px;min-width:66px}h1{left:7%;top:16%;font-size:14vw;letter-spacing:-.04em}.intro-copy{left:7%;top:65%;width:86%;display:block}.intro-copy p{font-size:22px;line-height:1.45;margin:0 0 10px;white-space:normal}.body-copy{display:none}.journey-route{font-size:10px;margin-top:12px}.entry-actions{gap:22px;margin-top:16px}.entry-actions .mission-button{padding:12px 20px;font-size:12px}.intro-copy p.journey-duration{font-size:10px;margin-top:10px}.caption{display:none}#transport{bottom:18px;left:22px;right:22px;height:24px}.coordinates{font-size:9px}#stage-number{display:inline-block;font-size:10px}.progress-track{display:block;width:60px}#progress-text{font-size:9px}#outro{padding:24vh 7vw 10vh}#outro h2{font-size:11vw;line-height:1.4;margin-bottom:22px}#outro p{font-size:12px}.outro-foot{font-size:8px;line-height:1.6}.robot-visor #ending h2{font-size:8vw;top:16%}.robot-visor #ending p{font-size:11px}.robot-visor #ending .mission-button{bottom:10%}}
@media(max-height:700px) and (min-width:751px){h1{top:17%;font-size:64px}.intro-copy{top:38%}.intro-copy p{font-size:23px;margin-bottom:12px}.journey-route{margin-top:16px}.entry-actions{margin-top:16px}.intro-copy p.journey-duration{margin-top:10px}}
@media(max-height:710px) and (max-width:750px){h1{top:16%;font-size:12vw}.intro-copy{top:64%}.intro-copy p{font-size:18px;margin-bottom:6px}.journey-route{margin-top:8px}.entry-actions{margin-top:10px}.intro-copy p.journey-duration{margin-top:6px}}

#ending .mission-button{pointer-events:auto}

@media(max-height:580px) and (min-width:751px){h1{top:18%;font-size:42px}.intro-copy{top:24%}.intro-copy p{font-size:20px;line-height:1.45;margin-bottom:12px}.body-copy{display:none}.journey-route{margin-top:12px}.entry-actions{margin-top:12px}.intro-copy p.journey-duration{margin-top:10px}}
/* v032: the interactive field fills the entry; the existing scene opens from its window. */
#intro-field{position:absolute;inset:0;z-index:1;pointer-events:none;contain:strict}
#intro-field[hidden]{display:none}
#intro-field::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#0b10126b 0%,transparent 58%),linear-gradient(0deg,#0b1012b3,transparent 35%);pointer-events:none}
#intro-field .antigravity{height:100%;width:100%;position:relative}
#intro-field canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
h1{top:15.5%;font-size:clamp(58px,5.7vw,96px);line-height:1.22;letter-spacing:-.035em;text-shadow:0 4px 24px #0b101299;white-space:normal}
h1 span{color:var(--accent)}
.intro-copy{left:62%;top:52%;width:32%;max-width:460px;text-shadow:0 2px 12px #0b1012}
.intro-copy p{font-size:clamp(24px,2.1vw,34px);line-height:1.5;margin-bottom:18px}
.body-copy{font-size:clamp(12px,.96vw,15px);line-height:2;color:#c0cdcc}
.journey-route{font-size:11px;margin-top:24px;letter-spacing:.06em}
.entry-actions{margin-top:22px;gap:28px}
.entry-actions .mission-button{min-height:48px;padding:14px 24px}
.caption{left:6.5%;width:49%;bottom:6.6%;font-size:11px}
.field-hint{position:absolute;right:6%;top:43%;color:var(--muted);font-size:11px;letter-spacing:.04em;text-shadow:0 2px 12px #0b1012}
@media(max-width:1100px) and (min-width:751px){h1{font-size:clamp(48px,5.7vw,64px)}.intro-copy{left:62%;width:34%;top:49%}.intro-copy p{font-size:24px}.body-copy{font-size:12px}.journey-route{font-size:10px;margin-top:18px}.entry-actions{gap:20px;margin-top:18px}.field-hint{font-size:10px}}
@media(max-width:750px){h1{left:7%;top:12%;font-size:clamp(34px,10.5vw,64px);line-height:1.25}.intro-copy{left:7%;top:64%;width:86%;max-width:none}.intro-copy p{font-size:22px;line-height:1.4;margin-bottom:10px}.intro-copy p br{display:none}.body-copy{display:none}.journey-route{font-size:10px;margin-top:12px}.entry-actions{margin-top:16px;gap:24px}.entry-actions .mission-button{min-height:46px;padding:12px 22px}.field-hint{right:7%;top:29%;font-size:9px}.caption{display:none}}
@media(max-height:710px) and (max-width:750px){h1{top:13%;font-size:10vw}.intro-copy{top:64%}.intro-copy p{font-size:18px;margin-bottom:8px}.journey-route{margin-top:8px}.entry-actions{margin-top:12px}.intro-copy p.journey-duration{margin-top:8px}}
@media(max-height:700px) and (min-width:751px){h1{top:15%;font-size:clamp(42px,5vw,60px)}.intro-copy{top:44%}.intro-copy p{font-size:23px;margin-bottom:12px}.body-copy{font-size:11px}.journey-route{margin-top:14px}.entry-actions{margin-top:14px}.field-hint{top:34%}}
@media(max-height:580px) and (min-width:751px){h1{top:21%;font-size:38px;line-height:1.15}.intro-copy{top:25%}.intro-copy p{font-size:20px;margin-bottom:12px}.body-copy{display:none}.journey-route{margin-top:14px}.entry-actions{margin-top:14px}.field-hint{display:none}.caption{display:none}}
@media(prefers-reduced-motion:reduce){.field-hint{display:none}}

.intro-copy{isolation:isolate}
.intro-copy::before{content:"";position:absolute;inset:-45px -35px;z-index:-1;background:radial-gradient(ellipse,#0b1012e6 20%,#0b1012a6 50%,transparent 73%);pointer-events:none}
@media(max-height:580px) and (min-width:751px){h1{top:22%;font-size:30px;line-height:1.1}}
@media(pointer:coarse){.field-hint{display:none}}
/* v033: real particles compose the title; native text remains the failure fallback. */
h1.particle-heading{top:14%;width:52%;max-width:900px;height:min(27vh,300px);font-family:var(--font-display);font-size:clamp(64px,8.5vw,132px);font-weight:600;line-height:1;letter-spacing:-.025em;pointer-events:auto}
.title-fallback{display:block;color:var(--text);transition:opacity .3s ease-out}
.title-fallback>span{color:var(--accent)}
#particle-title{display:block;position:absolute;inset:0;opacity:0;transition:opacity .3s ease-out}
.particle-ready #particle-title{opacity:1}
.particle-ready>.title-fallback{opacity:0}
.particle-lines{display:grid;width:100%;height:100%;grid-template-rows:1fr 1fr}
.particle-heading .particle-text{min-height:0;overflow:hidden}
@media(max-width:750px){h1.particle-heading{top:12%;left:7%;width:86%;height:17vh;max-height:160px;font-size:clamp(40px,12.8vw,80px)}}
@media(max-height:700px) and (min-width:751px){h1.particle-heading{font-size:clamp(52px,7.7vw,80px);height:24vh}}
@media(max-height:580px) and (min-width:751px){h1.particle-heading{font-size:40px;height:24vh}}

h1.particle-heading{isolation:isolate}
h1.particle-heading::before{content:"";position:absolute;inset:-24px -16px;z-index:-1;background:radial-gradient(ellipse at 30% 50%,#0b1012d9,transparent 75%);pointer-events:none}

/* v034: a single departure, with the next scene prepared behind the curtain. */
#outro[data-departure=true] .departure-native{display:none}
.journey-prepared-frame{position:fixed;inset:0;width:100%;height:100%;border:0;z-index:100;opacity:0;pointer-events:none;background:var(--space);transition:opacity 650ms ease-in-out}
.journey-prepared-frame.revealing{opacity:1}
body[data-departing=true]{overflow:hidden}
body[data-journey-active=true]>.journey-prepared-frame{pointer-events:auto}
body[data-journey-active=true]>header,body[data-journey-active=true]>#experience,body[data-journey-active=true]>#transport{visibility:hidden}
@media(prefers-reduced-motion:reduce){.journey-prepared-frame{transition:none}}