:root{--ambient-x:0px;--ambient-y:0px;--ambient-scroll:0px;--page-wash:rgba(238,242,239,.58);--coral:rgba(220,91,72,.25);--gold:rgba(221,181,76,.22);--teal:rgba(42,151,142,.2);--violet:rgba(118,92,145,.16)}
:root[data-theme='dark']{--page-wash:rgba(15,23,23,.7);--coral:rgba(213,76,61,.18);--gold:rgba(214,163,61,.15);--teal:rgba(36,145,137,.18);--violet:rgba(123,93,156,.2)}
.ambient-field{position:fixed;z-index:1;inset:0;overflow:hidden;pointer-events:none;opacity:.95;transition:opacity .42s ease;transform:translate3d(calc(var(--ambient-x)*.12),calc(var(--ambient-y)*.12),0)}
.spectrum-band{position:absolute;left:-18vw;width:136vw;height:34vh;border-radius:50%;filter:blur(58px);mix-blend-mode:multiply;opacity:.72;will-change:transform}
:root[data-theme='dark'] .spectrum-band{mix-blend-mode:screen;opacity:.56}
.band-coral{top:9vh;background:linear-gradient(90deg,transparent 5%,var(--coral) 30%,rgba(222,100,76,.08) 67%,transparent 94%);transform:translate3d(calc(var(--ambient-x)*.35),calc(var(--ambient-scroll)*-.05),0) rotate(-8deg);animation:driftCoral 18s ease-in-out infinite alternate}
.band-gold{top:37vh;background:linear-gradient(90deg,transparent 8%,rgba(216,178,75,.05) 26%,var(--gold) 54%,transparent 92%);transform:translate3d(calc(var(--ambient-x)*-.2),calc(var(--ambient-y)*.2),0) rotate(7deg);animation:driftGold 22s ease-in-out infinite alternate}
.band-teal{top:64vh;background:linear-gradient(90deg,transparent 2%,var(--teal) 35%,rgba(39,150,142,.07) 74%,transparent 98%);transform:translate3d(calc(var(--ambient-x)*.24),calc(var(--ambient-scroll)*-.035),0) rotate(-5deg);animation:driftTeal 20s ease-in-out infinite alternate}
.band-violet{top:82vh;height:28vh;background:linear-gradient(90deg,transparent 12%,rgba(121,94,150,.04) 25%,var(--violet) 66%,transparent 95%);transform:translate3d(calc(var(--ambient-x)*-.32),calc(var(--ambient-y)*-.18),0) rotate(9deg);animation:driftViolet 25s ease-in-out infinite alternate}
.refraction-mesh{position:absolute;inset:-20%;opacity:.19;background-image:linear-gradient(112deg,transparent 0 47%,rgba(255,255,255,.44) 49%,transparent 51%),linear-gradient(18deg,transparent 0 58%,rgba(112,138,130,.19) 59%,transparent 60%);background-size:420px 320px,340px 260px;transform:translate3d(calc(var(--ambient-x)*-.15),calc(var(--ambient-scroll)*-.04),0);mask-image:linear-gradient(to bottom,transparent,#000 16%,#000 84%,transparent)}
.light-sweep{position:absolute;inset:0;background:linear-gradient(105deg,transparent 15%,rgba(255,255,255,.22) 32%,transparent 47%);transform:translateX(-75%);animation:lightSweep 16s ease-in-out infinite}
.archive,.data-chapter,.evidence-chapter,.method-chapter{background:var(--page-wash)!important}.opening{background:linear-gradient(92deg,rgba(11,27,28,.8),rgba(20,39,38,.38) 48%,rgba(80,45,54,.16))!important}
.section-intro,.archive-workspace,.chart-card,.evidence-shell,.method-grid article,.source-library{position:relative;overflow:hidden}.section-intro::after,.archive-workspace::after,.chart-card::after,.evidence-shell::after,.source-library::after{content:'';position:absolute;z-index:0;top:-80%;left:-28%;width:46%;height:250%;pointer-events:none;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transform:rotate(14deg) translateX(-160%);animation:glassGlint 13s ease-in-out infinite}.section-intro>* ,.archive-workspace>* ,.chart-card>* ,.evidence-shell>* ,.source-library>*{position:relative;z-index:1}
body.map-focus .ambient-field,body.returning-to-archive .ambient-field{opacity:0}
@keyframes driftCoral{to{margin-left:8vw;margin-top:3vh;filter:blur(70px)}}@keyframes driftGold{to{margin-left:-6vw;margin-top:-4vh;filter:blur(66px)}}@keyframes driftTeal{to{margin-left:7vw;margin-top:-3vh;filter:blur(72px)}}@keyframes driftViolet{to{margin-left:-8vw;margin-top:4vh;filter:blur(68px)}}@keyframes lightSweep{0%,55%{transform:translateX(-80%);opacity:0}72%{opacity:.65}100%{transform:translateX(95%);opacity:0}}@keyframes glassGlint{0%,62%{transform:rotate(14deg) translateX(-170%);opacity:0}72%{opacity:.55}94%,100%{transform:rotate(14deg) translateX(420%);opacity:0}}
@media(max-width:700px){.spectrum-band{height:28vh;filter:blur(45px);opacity:.62}.refraction-mesh{opacity:.12;background-size:280px 220px,240px 190px}.light-sweep{display:none}.section-intro::after,.archive-workspace::after,.chart-card::after,.evidence-shell::after,.source-library::after{animation-duration:18s}}
@media(prefers-reduced-motion:reduce){.ambient-field{transform:none}.spectrum-band,.light-sweep,.section-intro::after,.archive-workspace::after,.chart-card::after,.evidence-shell::after,.source-library::after{animation:none!important}.refraction-mesh{transform:none}}