.chapter-hero{position:relative;isolation:isolate;min-height:800px;display:flex;align-items:center}.chapter-film,.chapter-shade{position:absolute;inset:0;z-index:-2;background-position:center;background-size:cover;overflow:hidden}.chapter-film video{width:100%;height:100%;object-fit:cover}.chapter-shade{z-index:-1;background:linear-gradient(90deg,color-mix(in srgb,var(--xd-color-canvas) 90%,transparent),color-mix(in srgb,var(--xd-color-canvas) 25%,transparent)),linear-gradient(0deg,var(--xd-color-canvas),transparent 45%)}.chapter-hero-copy{padding-top:120px;padding-bottom:100px}.breadcrumb{display:flex;gap:16px;font-size:11px;color:var(--xd-color-text-muted);margin-bottom:56px;min-height:36px;align-items:center}.breadcrumb span{opacity:.8}.chapter-hero h1{font-size:clamp(44px,5.5vw,78px);font-weight:460;max-width:900px}.chapter-hero-copy>p{margin-top:28px;max-width:600px;font-size:17px}.chapter-world{position:relative;isolation:isolate}.chapter-world:before{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,color-mix(in srgb,var(--xd-color-canvas) 90%,transparent),color-mix(in srgb,var(--xd-color-canvas) 60%,transparent)),url('/media/continuum-world.webp') center/cover;mask-image:linear-gradient(transparent,black 8%,black 88%,transparent)}.chapter-content{padding-block:72px}.chapter-lead{max-width:800px;margin-bottom:64px}.chapter-lead>p{font-size:18px;line-height:1.85;margin-top:28px;max-width:720px}.editorial-path{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;margin:64px 0}.editorial-path article{border-top:1px solid var(--xd-color-border-emphasis);padding-top:24px}.editorial-path article>span{font-size:9px;letter-spacing:.16em;color:var(--xd-color-action)}.editorial-path h3{font-size:27px;line-height:1.2;margin-top:20px}.editorial-path p{font-size:13px;line-height:1.9;margin-top:20px}.editorial-path a{display:block;font-size:11px;color:var(--xd-color-action);margin-top:24px;min-height:44px;padding-top:10px}.chapter-content blockquote{font-size:clamp(30px,4vw,54px);font-weight:400;line-height:1.2;letter-spacing:-.035em;margin:80px 0 48px;border-left:2px solid var(--xd-color-action);padding-left:32px}.chapter-content blockquote span{color:var(--xd-color-accent)}.chapter-note{font-size:11px;color:var(--xd-color-text-muted);max-width:660px}.chapter-next{padding-block:64px 100px;border-top:1px solid var(--xd-color-border)}.chapter-next>div{display:flex;align-items:center;justify-content:space-between;gap:24px}.chapter-next>.text-link{margin-top:24px}.world-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.world-card{display:block;position:relative;overflow:hidden;background:color-mix(in srgb,var(--xd-color-surface) 95%,transparent);border:1px solid var(--xd-color-border);border-radius:var(--xd-radius-surface);transition:border-color var(--xd-duration-standard),transform var(--xd-duration-standard)}.world-card:hover{border-color:var(--xd-color-action);transform:translateY(-3px)}.world-card>img{width:100%;height:240px;object-fit:cover;display:block;mask-image:linear-gradient(black 75%,transparent)}.world-card>div{padding:16px 28px 24px}.world-card .eyebrow{font-size:8px;margin-bottom:16px}.world-card h3{font-size:28px}.world-card p{font-size:13px;margin-top:16px;max-width:430px}.world-card-link{display:flex;justify-content:space-between;font-size:11px;color:var(--xd-color-action);margin-top:24px}.world-card-link b{font-size:20px;font-weight:400}.hub-guide{display:flex;justify-content:space-between;align-items:center;gap:48px;padding:64px 0 24px}.hub-guide h3{font-size:40px}.hub-guide p{font-size:14px;max-width:540px;margin-top:20px}.chapter-portals .world-cards{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.chapter-portals .world-card>img{height:160px}.chapter-portals .world-card>div{padding:12px 20px 20px}.chapter-portals .world-card h3{font-size:22px;line-height:1.2}.chapter-portals .world-card .eyebrow{font-size:7px;letter-spacing:.1em}.chapter-portals .world-card p{font-size:11px}.chapter-interactive{display:grid;grid-template-columns:1fr 1fr;gap:64px;padding:40px;background:color-mix(in srgb,var(--xd-color-surface) 95%,transparent);align-items:center}.chapter-interactive h3{font-size:30px}.chapter-interactive p{font-size:14px;margin-top:20px}.chapter-interactive label{display:flex;justify-content:space-between;font-size:12px;margin-top:32px;margin-bottom:12px}.chapter-interactive input[type=range]{width:100%;min-height:44px;accent-color:var(--xd-color-action)}.chapter-interactive .micro{font-size:10px}.chapter-interactive select{width:100%;padding:12px;color:var(--xd-color-text-primary);background:var(--xd-color-surface-raised);border:1px solid var(--xd-color-border-emphasis);border-radius:var(--xd-radius-control)}.risk-diagram{padding:24px;display:flex;flex-direction:column;justify-content:center;min-height:440px;font-variant-numeric:tabular-nums}.risk-zone{display:flex;justify-content:space-between;align-items:center;padding:16px;border:1px solid var(--xd-color-border-emphasis);font-size:11px}.risk-zone strong{display:block;font-size:18px;font-weight:450}.risk-zone b{font-size:22px;font-weight:450}.reward-zone{height:180px;background:color-mix(in srgb,var(--xd-color-action) 10%,transparent);color:var(--xd-color-action);transition:height var(--xd-duration-standard)}.loss-zone{height:60px;border-color:var(--xd-color-accent);background:color-mix(in srgb,var(--xd-color-accent) 10%,transparent);color:var(--xd-color-accent)}.loss-zone strong{display:inline;margin-left:12px;font-size:12px}.loss-zone b{font-size:16px}.risk-entry{display:flex;justify-content:space-between;font-size:11px;padding:12px 0}.risk-entry strong{font-size:14px;font-weight:500}.chapter-switches{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}.chapter-switches button{padding:10px 16px;min-height:44px;font-size:11px;border:1px solid var(--xd-color-border);border-radius:var(--xd-radius-control)}.chapter-switches button[aria-pressed=true]{color:var(--xd-color-action);border-color:var(--xd-color-border-emphasis);background:var(--xd-color-surface-active)}.review-steps-art>div{padding:24px 0;border-top:1px solid var(--xd-color-border);display:grid;grid-template-columns:1fr auto;gap:8px}.review-steps-art span{font-size:12px}.review-steps-art strong{font-size:32px;font-weight:400;color:var(--xd-color-action)}.review-steps-art>div:nth-child(3) strong{color:var(--xd-color-accent)}.review-steps-art small{font-size:11px;color:var(--xd-color-text-muted)}.reflection-prompt{border-left:2px solid var(--xd-color-accent);padding-left:28px}.reflection-prompt #reflection-prompt{font-size:24px;line-height:1.5;color:var(--xd-color-text-primary)}.reflection-prompt a{display:block;color:var(--xd-color-action);font-size:12px;margin-top:28px;min-height:44px}
@media(max-width:1100px){.chapter-portals .world-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.chapter-portals .world-card>img{height:220px}.chapter-interactive{gap:32px;padding:32px}.editorial-path{gap:28px}}
@media(max-width:900px){[data-xd-landing=journey] .nav nav{display:none;position:absolute;top:80px;left:0;right:0;margin:0;padding:20px;background:var(--xd-color-surface);border:1px solid var(--xd-color-border);border-radius:var(--xd-radius-surface)}[data-xd-landing=journey] .nav nav.open{display:flex;flex-direction:column;align-items:stretch;gap:4px}[data-xd-landing=journey] .nav nav a{padding:12px}[data-xd-landing=journey] .mobile-toggle{display:block}[data-xd-landing=journey] .nav-cta{margin-left:auto}}
@media(max-width:800px){.chapter-hero{min-height:760px}.chapter-hero-copy{padding-top:140px;padding-bottom:80px}.chapter-hero h1{font-size:50px}.chapter-film video{object-position:65% center}.chapter-hero-copy>p{font-size:16px;max-width:500px}.chapter-content{padding-block:48px}.editorial-path{grid-template-columns:1fr;gap:36px;margin-block:48px}.editorial-path p{max-width:620px}.editorial-path h3{font-size:29px}.chapter-interactive{grid-template-columns:1fr;gap:24px}.risk-diagram{min-height:380px;padding:0;max-width:440px;width:100%;margin:auto}.chapter-next>div{align-items:start;flex-direction:column}.hub-guide{align-items:start;flex-direction:column;gap:28px}.world-card>img{height:180px}}
@media(max-width:520px){.chapter-hero{min-height:780px}.chapter-hero h1{font-size:43px}.chapter-hero-copy>p{font-size:15px}.breadcrumb{font-size:9px;gap:8px;margin-bottom:40px}.chapter-hero .eyebrow{font-size:8px}.chapter-lead>p{font-size:16px}.chapter-lead{margin-bottom:40px}.world-cards,.chapter-portals .world-cards{grid-template-columns:1fr}.world-card>img,.chapter-portals .world-card>img{height:200px}.world-card>div,.chapter-portals .world-card>div{padding:12px 24px 24px}.chapter-portals .world-card h3{font-size:25px}.chapter-portals .world-card p{font-size:13px}.chapter-interactive{padding:24px}.chapter-interactive h3{font-size:27px}.chapter-interactive p{font-size:13px}.reflection-prompt #reflection-prompt{font-size:21px}.chapter-next{padding-bottom:72px}.chapter-content blockquote{font-size:33px;margin-block:56px 32px}.hub-guide h3{font-size:34px}.review-steps-art strong{font-size:28px}}
@media(prefers-reduced-motion:reduce){.world-card:hover{transform:none}.reward-zone{transition:none}}

/* Natural source art stays at its own aspect ratio behind chapter content. */
.chapter-world:before{background-image:linear-gradient(90deg,color-mix(in srgb,var(--xd-color-canvas) 90%,transparent),color-mix(in srgb,var(--xd-color-canvas) 65%,transparent)),url('/media/observatory-natural-desktop.webp');background-size:auto,100% auto;background-repeat:no-repeat;background-position:center,center top}
.chapter-film.natural-scene .scene-art img,.chapter-film.natural-scene video{object-position:center}
.chapter-shade{background:linear-gradient(90deg,color-mix(in srgb,var(--xd-color-canvas) 70%,transparent),color-mix(in srgb,var(--xd-color-canvas) 15%,transparent)),linear-gradient(0deg,var(--xd-color-canvas),transparent 45%)}
.chapter-world [data-reveal]{transition:opacity .5s ease,transform .5s var(--xd-ease-out)}
@media(max-width:800px){.chapter-world:before{background-image:linear-gradient(90deg,color-mix(in srgb,var(--xd-color-canvas) 90%,transparent),color-mix(in srgb,var(--xd-color-canvas) 72%,transparent)),url('/media/observatory-natural-mobile.webp');background-size:auto,100% auto}.chapter-hero:has(.natural-scene) .chapter-hero-copy{padding-top:300px;padding-bottom:72px}.chapter-hero:has(.natural-scene) .breadcrumb{margin-bottom:24px}.chapter-hero:has(.natural-scene) .chapter-shade{background:linear-gradient(0deg,var(--xd-color-canvas),color-mix(in srgb,var(--xd-color-canvas) 72%,transparent) 35%,transparent 90%)}}


/* Preserve the entire group at every viewport, including phones. */
.community-perspectives{margin:0 0 calc(var(--xd-space-6) * 2);overflow:hidden;border-radius:var(--xd-radius-surface)}
.community-perspectives img{display:block;width:100%;height:auto}
.world-card>img[src="/media/community-perspectives.webp"]{object-fit:contain;background:var(--xd-color-canvas)}