:root {
  --ink: #061c2b;
  --sea: #063b52;
  --deep: #042737;
  --sand: #f5f2e9;
  --paper: #fffdf8;
  --foam: #e6f4f1;
  --lime: #d8ff68;
  --coral: #ff866d;
  --sky: #7fd2da;
  --lilac: #c8b8e8;
  --muted: #526571;
  --line: rgba(6, 28, 43, .17);
  --line-dark: rgba(230, 244, 241, .2);
  --shadow: 0 18px 50px rgba(6, 28, 43, .09);
  --serif: Georgia, "Times New Roman", serif;
  --sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --wrap: 1240px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--sand); }
body {
  margin: 0;
  background: var(--sand);
  color: var(--ink);
  font: 16px/1.62 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.nav-open { overflow: hidden; }
img, svg { max-width: 100%; height: auto; }
a { color: var(--sea); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: var(--ink); }
code { overflow-wrap: anywhere; word-break: break-all; }
button, input, select { font: inherit; }
button { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
[id] { scroll-margin-top: 190px; }

.skip-link {
  position: fixed; left: 16px; top: 10px; z-index: 9999;
  transform: translateY(-160%); padding: 10px 14px;
  background: var(--lime); color: var(--ink); font-weight: 800;
}
.skip-link:focus { transform: none; }
.wrap { width: min(100%, var(--wrap)); margin-inline: auto; padding-inline: clamp(20px, 3vw, 28px); }

.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: color-mix(in srgb, var(--sand) 94%, transparent);
  border-bottom: 1px solid var(--line); backdrop-filter: blur(14px);
}
.header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; font-weight: 900; letter-spacing: .065em; white-space: nowrap; }
.brand-mark { width: 27px; height: 27px; border: 3px solid var(--sea); border-radius: 50% 50% 50% 0; transform: rotate(-45deg); }
.primary-nav { display: flex; align-items: center; justify-content: flex-end; gap: clamp(12px, 1.4vw, 21px); }
.primary-nav a { color: var(--ink); text-decoration: none; font-size: .78rem; font-weight: 780; white-space: nowrap; }
.primary-nav a[aria-current="page"] { border-bottom: 2px solid var(--sea); padding-bottom: 4px; }
.primary-nav .nav-cta { padding: 10px 14px; border: 1px solid var(--ink); border-radius: 999px; background: var(--ink); color: white; }
.menu-toggle { display: none; border: 1px solid var(--ink); border-radius: 999px; background: transparent; padding: 9px 13px; font-weight: 800; }


.hero { position: relative; overflow: hidden; background: var(--ink); color: white; padding: clamp(62px, 9vw, 116px) 0 clamp(54px, 7vw, 88px); }
.hero::after { content: ""; position: absolute; width: 520px; height: 520px; right: -190px; top: -240px; border: 1px solid rgba(216,255,104,.2); border-radius: 50%; box-shadow: 0 0 0 80px rgba(216,255,104,.035), 0 0 0 170px rgba(127,210,218,.025); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(320px, .88fr); align-items: center; gap: clamp(34px, 6vw, 82px); position: relative; z-index: 1; }
.eyebrow { margin: 0 0 18px; color: var(--lime); font-size: .72rem; font-weight: 900; letter-spacing: .13em; text-transform: uppercase; }
.hero h1, .page-hero h1 { margin: 0; font: 400 clamp(3rem, 6.6vw, 6.2rem)/.93 var(--serif); letter-spacing: -.065em; text-wrap: balance; }
.hero h1 { color: white; }
.hero-lede { max-width: 760px; margin: 26px 0 0; color: #c8d6d9; font-size: clamp(1.03rem, 1.5vw, 1.28rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--ink); border-radius: 999px; padding: 11px 17px; background: var(--ink); color: white; text-decoration: none; font-size: .82rem; font-weight: 850; }
.button:hover { background: var(--sea); color: white; }
.button.light { background: var(--lime); color: var(--ink); }
.button.outline { border-color: rgba(255,255,255,.55); background: transparent; color: white; }
.button.paper { background: var(--paper); color: var(--ink); }

.page-hero { padding: clamp(55px, 8vw, 100px) 0 52px; background: var(--ink); color: white; }
.page-hero h1 { max-width: 1020px; color: white; font-size: clamp(2.9rem, 6vw, 5.5rem); }
.page-hero .hero-lede { max-width: 820px; }
.breadcrumb { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 24px; color: #a9bec2; font-size: .75rem; font-weight: 750; letter-spacing: .04em; text-transform: uppercase; }
.breadcrumb a { color: #dbe9e9; }

.section { padding: clamp(54px, 7vw, 94px) 0; border-bottom: 1px solid var(--line); }
.section.dark { background: var(--ink); color: white; border-color: var(--line-dark); }
.section.sea { background: var(--sea); color: white; border-color: var(--line-dark); }
.section.foam { background: var(--foam); }
.section.paper { background: var(--paper); }
.section.lime { background: var(--lime); }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .42fr); align-items: end; gap: 32px; margin-bottom: 34px; }
.section-head.single { grid-template-columns: minmax(0, 820px); }
.kicker { margin: 0 0 12px; color: var(--sea); font-size: .7rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.dark .kicker, .sea .kicker { color: var(--lime); }
h2, h3, h4 { font-family: var(--serif); font-weight: 400; letter-spacing: -.04em; }
h2 { margin: 0; font-size: clamp(2.2rem, 4.5vw, 4.2rem); line-height: .98; text-wrap: balance; }
h3 { margin: 0 0 10px; font-size: clamp(1.35rem, 2.4vw, 2rem); line-height: 1.04; }
h4 { margin: 0 0 8px; font-size: 1.22rem; line-height: 1.1; }
.section-deck { margin: 0; color: var(--muted); }
.dark .section-deck, .sea .section-deck, .dark p, .sea p { color: #c7d6d8; }
.measure { max-width: 760px; }
.lede { font-size: 1.13rem; }
.small { font-size: .8rem; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 850; text-decoration: none; }

.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.one { grid-template-columns: minmax(0, 780px); }
.card { background: var(--paper); border: 1px solid var(--line); padding: clamp(20px, 3vw, 30px); min-width: 0; color: var(--ink); }
.card.dark-card { background: rgba(255,255,255,.04); border-color: var(--line-dark); color: white; }
.dark .card:not(.dark-card) p, .sea .card:not(.dark-card) p { color: var(--muted); }
.dark .card:not(.dark-card) .kicker, .sea .card:not(.dark-card) .kicker { color: var(--sea); }
.dark .card:not(.dark-card) .context-region, .sea .card:not(.dark-card) .context-region { color: var(--muted); }
.card p:last-child, .card ul:last-child, .card dl:last-child { margin-bottom: 0; }
.card-number { display: block; margin-bottom: 25px; font: 400 2.6rem/1 var(--serif); color: var(--sea); }
.dark-card .card-number { color: var(--lime); }
.card-link { position: relative; display: flex; flex-direction: column; color: var(--ink); text-decoration: none; transition: transform .16s ease, border-color .16s ease; }
.card-link:hover { transform: translateY(-3px); color: var(--ink); border-color: var(--sea); }
.dark-card.card-link, .dark-card.card-link:hover { color: white; }
.card-link .arrow { margin-top: auto; padding-top: 18px; font-weight: 900; }
.evidence-class {
  display: inline-flex; width: fit-content; margin: 0 0 16px; padding: 6px 9px;
  background: #e8e1f5; border: 1px solid #8f7bad; color: #433758;
  font-size: .65rem; font-weight: 850; letter-spacing: .045em; line-height: 1.25; text-transform: uppercase;
}
.context-region { display: block; margin-top: 15px; color: var(--muted); font-size: .7rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.dark .context-region { color: #a9bec2; }
.context-card { min-height: 330px; }
.contexts-grid .context-card:last-child:nth-child(odd) { grid-column: 1 / -1; min-height: 280px; }
.region-entry { min-height: 360px; }
.region-entry .kicker { margin-bottom: 10px; }

.metric-strip { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line-dark); margin-top: 42px; }
.metric { padding: 22px; border-right: 1px solid var(--line-dark); }
.metric:last-child { border-right: 0; }
.metric strong { display: block; color: white; font: 400 clamp(2rem, 4vw, 3.5rem)/1 var(--serif); letter-spacing: -.05em; }
.metric span { display: block; margin-top: 8px; color: #b9cbce; font-size: .78rem; }

.status { display: inline-flex; align-items: center; gap: 7px; width: fit-content; border: 1px solid currentColor; border-radius: 999px; padding: 5px 9px; font-size: 12px; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.status.observed { color: #075f72; background: #d9f2f5; }
.status.modelled { color: #51426d; background: #ede6f7; }
.status.unknown { color: #81362d; background: #ffe4de; }
.status.not-assessed { color: #45545d; background: #e8ecec; }
.status.framework { color: #684d15; background: #fff0c7; }
.dark .status.observed { color: #b5f1f5; background: rgba(127,210,218,.14); }
.dark .status.modelled { color: #e3d9f8; background: rgba(200,184,232,.14); }
.dark .status.unknown { color: #ffd6ce; background: rgba(255,134,109,.14); }
.dark .status.not-assessed { color: #d4dde0; background: rgba(255,255,255,.09); }

.provenance { margin-top: 20px; padding: 16px 18px; border-left: 3px solid var(--sky); background: var(--foam); font-size: 14px; color: var(--muted); overflow-wrap: anywhere; word-break: break-word; }
.provenance strong { color: var(--ink); }
.dark .provenance, .sea .provenance { background: rgba(255,255,255,.05); color: #bcd0d3; border-color: var(--sky); }
.dark .provenance strong, .sea .provenance strong { color: white; }
.dark .provenance a, .sea .provenance a, .hero .provenance a { color: var(--lime); }
.map-scope { display: flex; gap: 12px; align-items: flex-start; margin: 18px 20px 0; padding: 12px 14px; background: rgba(4,38,55,.9); border: 1px solid rgba(118,220,224,.36); border-radius: 10px; color: #d9e8e7; font-size: .75rem; font-weight: 560; line-height: 1.45; }
.map-scope::before { content: "i"; flex: 0 0 auto; display: grid; place-items: center; width: 20px; height: 20px; border: 1px solid #f2d568; border-radius: 50%; color: #f2d568; font-weight: 900; font-family: var(--sans); }
.world-figure { margin: 0; overflow: hidden; background: linear-gradient(180deg,#06283b,#041c2b); border: 1px solid rgba(118,220,224,.34); border-radius: 18px; box-shadow: 0 24px 60px rgba(0,17,31,.2); }
.world-map-stage { position: relative; isolation: isolate; aspect-ratio: 16 / 9; overflow: hidden; background: #06283b; }
.world-map-stage picture { position: absolute; inset: 0; display: block; }
.world-map-stage img { display: block; width: 100%; height: 100%; object-fit: cover; }
.world-map-stage__relief { z-index: 1; }
.world-map-stage__relief img { filter: brightness(.74) saturate(.88) contrast(1.12); transform: scale(1.006); }
.world-map-stage__overlay { z-index: 2; pointer-events: none; }
.world-map-stage__overlay img { filter: drop-shadow(0 2px 3px rgba(0,16,29,.22)); }
.map-region-label { position: absolute; z-index: 3; left: 50%; display: inline-flex; align-items: stretch; max-width: calc(100% - 28px); overflow: hidden; transform: translate(-50%,-50%); border: 1px solid rgba(167,227,225,.72); border-radius: 5px; background: rgba(3,34,51,.93); box-shadow: 0 4px 18px rgba(0,18,31,.22); color: #f7fbf7; font: 760 clamp(.72rem,1vw,.86rem)/1 var(--sans); letter-spacing: .055em; text-transform: uppercase; white-space: nowrap; }
.map-region-label span { display: grid; place-items: center; min-width: 2.2em; padding: .64em .58em; border-right: 1px solid currentColor; color: #f2d568; font-variant-numeric: tabular-nums; }
.map-region-label strong { padding: .64em .82em; font: inherit; }
.map-region-label--north { top: 18%; }
.map-region-label--equatorial { top: 52%; }
.map-region-label--southern { top: 83%; }
.world-figure figcaption { padding: 14px 20px 18px; color: #b9ced1; font-size: .73rem; line-height: 1.5; }
.world-figure figcaption a { color: var(--lime); }

.comparison-table-wrap, .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--paper); }
table { width: 100%; border-collapse: collapse; min-width: 800px; }
th, td { padding: 15px 16px; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--foam); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
th:last-child, td:last-child { border-right: 0; }
td { font-size: .88rem; }
caption { text-align: left; padding: 15px; font-weight: 800; }

select { width: 100%; min-height: 44px; border: 1px solid var(--ink); border-radius: 0; background: white; color: var(--ink); padding: 9px 11px; }

.record-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.record { position: relative; background: var(--paper); border: 1px solid var(--line); padding: 22px; }
.record[hidden] { display: none; }
.record.is-artifact { background: #eef0ee; }
.record.is-joint { border-left: 5px solid var(--lilac); }
.record.is-disputed { border-left: 5px solid var(--coral); }
.record-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.record h3 { font-size: 1.48rem; }
.record-id { flex: 0 0 auto; padding: 5px 7px; border: 1px solid var(--line); color: var(--muted); font: 750 .65rem/1 var(--sans); }
.record dl, .source-card dl, .evidence-card dl { display: grid; grid-template-columns: minmax(110px, .32fr) minmax(0, 1fr); margin: 18px 0 0; border-top: 1px solid var(--line); }
.record dt, .record dd, .source-card dt, .source-card dd, .evidence-card dt, .evidence-card dd { margin: 0; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: .76rem; }
.record dt, .source-card dt, .evidence-card dt { color: var(--muted); font-weight: 850; padding-right: 10px; }
.record dd, .source-card dd, .evidence-card dd { overflow-wrap: anywhere; }

.storyline { position: relative; display: grid; gap: 0; margin-top: 28px; }
.storyline::before { content: ""; position: absolute; left: 27px; top: 25px; bottom: 25px; width: 1px; background: var(--line); }
.story-step { position: relative; display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 18px; padding: 0 0 30px; }
.story-step:last-child { padding-bottom: 0; }
.story-index { position: relative; z-index: 1; width: 56px; height: 56px; display: grid; place-items: center; background: var(--sand); border: 1px solid var(--ink); border-radius: 50%; font: 400 1.25rem var(--serif); }
.dark .story-index, .sea .story-index { color: var(--ink); }
.story-body { padding: 4px 0 0; }
.story-body p { max-width: 770px; }

.fate-chain { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 2px; margin: 28px 0; background: var(--line); border: 1px solid var(--line); }
.fate-button { min-height: 150px; border: 0; background: var(--paper); padding: 18px; text-align: left; cursor: pointer; }
.fate-button:hover, .fate-button[aria-selected="true"] { background: var(--foam); }
.fate-button span { display: block; margin-bottom: 18px; color: var(--sea); font-weight: 900; }
.fate-button strong { display: block; font-family: var(--serif); font-size: 1.2rem; font-weight: 400; line-height: 1.08; }
.fate-button small { display: block; margin-top: 8px; color: var(--muted); }
.fate-panel { background: var(--ink); color: white; padding: clamp(24px, 4vw, 42px); }
.fate-panel[hidden] { display: none; }
.fate-panel-grid { display: grid; grid-template-columns: minmax(0, .75fr) minmax(260px, .35fr); gap: 34px; }
.breakpoint { margin-top: 18px; padding: 14px; border: 1px solid var(--coral); color: #ffd9d1; font-weight: 780; }

.depth-figure { display: grid; grid-template-columns: minmax(0, 1fr) 250px; min-height: 540px; background: linear-gradient(#0e6675 0 16%, #095268 16% 37%, #073e58 37% 66%, #041e32 66%); border: 1px solid var(--line); color: white; }
.depth-column { position: relative; min-height: 540px; overflow: hidden; }
.depth-label { position: absolute; left: 18px; padding: 3px 7px; background: rgba(6,28,43,.7); font-size: .68rem; font-weight: 800; }
.depth-label.d0 { top: 4%; }.depth-label.d100 { top: 18%; }.depth-label.d1000 { top: 43%; }.depth-label.deep { top: 75%; }
.particle { position: absolute; border-radius: 50%; background: #f0b889; opacity: .9; }
.particle.p1 { width: 13px; height: 13px; left: 28%; top: 12%; }.particle.p2 { width: 8px; height: 8px; left: 45%; top: 29%; }.particle.p3 { width: 18px; height: 18px; left: 61%; top: 44%; }.particle.p4 { width: 6px; height: 6px; left: 67%; top: 65%; }.particle.p5 { width: 11px; height: 11px; left: 38%; top: 78%; }
.depth-path { position: absolute; left: 52%; top: 9%; height: 72%; width: 2px; border-left: 2px dashed rgba(255,255,255,.6); transform: rotate(-7deg); }
.depth-notes { display: grid; align-content: center; gap: 12px; padding: 22px; background: var(--paper); color: var(--ink); }
.depth-note { padding: 12px; border-left: 3px solid var(--coral); background: var(--foam); font-size: .78rem; }

.instrument-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.instrument-card { background: var(--paper); border: 1px solid var(--line); padding: 22px; }
.instrument-card[hidden] { display: none; }
.instrument-icon { display: grid; place-items: center; width: 54px; height: 54px; margin-bottom: 20px; border: 1px solid var(--ink); border-radius: 50%; background: var(--foam); font-size: 1.5rem; }
.instrument-card ul { padding-left: 18px; }

.evidence-grid { display: grid; gap: 16px; }
.evidence-card { background: var(--paper); border: 1px solid var(--line); padding: 24px; }
.evidence-card[hidden] { display: none; }
.evidence-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.evidence-card h3 { max-width: 760px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.tag { padding: 4px 7px; background: var(--foam); border: 1px solid var(--line); font-size: .65rem; font-weight: 800; }

.route-builder { display: grid; grid-template-columns: minmax(260px, .42fr) minmax(0, .58fr); border: 1px solid var(--line); background: var(--paper); }
.route-form { padding: clamp(22px, 4vw, 38px); border-right: 1px solid var(--line); }
.route-form fieldset { margin: 0 0 22px; padding: 0; border: 0; }
.route-form legend { margin-bottom: 9px; font-weight: 850; }
.route-form label { display: flex; align-items: center; gap: 10px; width: 100%; min-width: 44px; min-height: 44px; margin: 2px 0; padding: 9px 8px; font-size: .84rem; cursor: pointer; }
.route-form input[type="checkbox"] { flex: 0 0 auto; margin: 0; accent-color: var(--sea); }
.route-output { padding: clamp(22px, 4vw, 38px); background: var(--foam); }
.route-output ol { margin: 18px 0 0; padding-left: 22px; }
.route-output li { margin: 12px 0; }
.route-empty { color: var(--muted); }

.risk-matrix { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.risk-card { background: var(--paper); border: 1px solid var(--line); padding: 24px; }
.risk-card[hidden] { display: none; }
.risk-scale { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 16px 0; }
.risk-scale div { padding: 10px; background: var(--foam); font-size: .7rem; }
.risk-scale strong { display: block; margin-bottom: 3px; color: var(--muted); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; }
.stop-rule { margin-top: 16px; padding: 14px; border-left: 4px solid var(--coral); background: #ffe4de; font-size: .8rem; }

.legal-layers { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-top: 30px; }
.legal-layer { min-height: 220px; padding: 20px; border: 1px solid var(--line); margin-left: -1px; background: var(--paper); }
.legal-layer:first-child { margin-left: 0; }
.legal-layer b { display: block; margin-bottom: 14px; color: var(--sea); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; }
.legal-layer p { font-size: .78rem; }

.source-grid { display: grid; gap: 14px; }
.source-section { padding: 38px 0 18px; border-top: 1px solid var(--line); }
.source-section:first-of-type { padding-top: 8px; border-top: 0; }
.source-section > .section-head { margin-bottom: 20px; }
.source-section > .section-head h3 { font-size: clamp(1.9rem, 3vw, 2.8rem); }
.source-card { background: var(--paper); border: 1px solid var(--line); padding: 22px; }
.source-card h3 { font-size: 1.45rem; }
.source-card .source-title { font-weight: 800; }
.place-orientation { padding-block: clamp(30px, 4vw, 52px); background: var(--lime); }
.place-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--ink); }
.place-facts article { min-width: 0; padding: clamp(20px, 3vw, 30px); border-right: 1px solid var(--ink); }
.place-facts article:last-child { border-right: 0; }
.place-facts span { display: block; margin-bottom: 12px; font-size: .66rem; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; }
.place-facts p { margin: 0; font: 400 clamp(1.1rem, 1.8vw, 1.45rem)/1.28 var(--serif); }
.place-reading { display: grid; grid-template-columns: minmax(220px, .34fr) minmax(0, .66fr); gap: clamp(32px, 7vw, 100px); align-items: start; }
.place-reading > header { position: sticky; top: 168px; }
.place-reading h2 { font-size: clamp(2.1rem, 4vw, 3.8rem); }
.place-prose { max-width: 790px; font-size: clamp(1rem, 1.2vw, 1.12rem); }
.place-prose > p:first-child { margin-top: 0; font-size: 1.08em; }
.place-prose p { margin: 0 0 1.25em; }
.place-prose ul, .place-prose ol { margin: 0; padding-left: 1.3em; }
.place-prose li { padding: 0 0 .72em .35em; }
.place-prose .source-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding: 0; list-style: none; }
.place-prose .source-list li { padding: 14px 16px; border: 1px solid var(--line); background: var(--paper); font-size: .84rem; }
.source-boundary { margin-top: 22px !important; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: .78rem; }
.source-boundary strong { color: var(--ink); }
.risk-community-note { margin-top: 22px !important; padding: 16px 18px; border-left: 4px solid var(--coral); background: #ffe8e3; font-size: .86rem; }
.taxon { font-family: var(--serif); }
.data-appendix { border: 1px solid var(--ink); background: var(--paper); }
.data-appendix > summary { min-height: 72px; display: flex; align-items: center; padding: 18px 22px; cursor: pointer; list-style-position: inside; }
.data-appendix > summary span { display: inline-grid; gap: 3px; margin-left: 10px; }
.data-appendix > summary strong { font-family: var(--serif); font-size: 1.35rem; font-weight: 400; }
.data-appendix > summary small { color: var(--muted); }
.data-appendix[open] > summary { border-bottom: 1px solid var(--line); background: var(--foam); }
.details-body { padding: clamp(22px, 4vw, 42px); }
.details-body > h2 { margin-bottom: 24px; }
.technical-ledger { display: grid; gap: 0; margin: 24px 0; border: 1px solid var(--line); }
.technical-ledger div { display: grid; grid-template-columns: minmax(220px, .35fr) minmax(0, .65fr); gap: 16px; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.technical-ledger div:last-child { border-bottom: 0; }
.technical-ledger dt { font-weight: 850; }
.technical-ledger dd { margin: 0; overflow-wrap: anywhere; }
.glossary { columns: 2; column-gap: 18px; }
.glossary-item { break-inside: avoid; margin: 0 0 18px; padding: 18px; border: 1px solid var(--line); background: var(--paper); }
.glossary-item dt { font-family: var(--serif); font-size: 1.25rem; }
.glossary-item dd { margin: 7px 0 0; color: var(--muted); font-size: .82rem; }

.callout { padding: 22px; border-left: 5px solid var(--sky); background: var(--foam); }
.callout.coral { border-color: var(--coral); background: #ffe8e3; }
.callout.lime-callout { border-color: var(--lime); }
.checklist { list-style: none; padding: 0; margin: 18px 0 0; }
.checklist li { position: relative; margin: 0; padding: 13px 13px 13px 46px; border-top: 1px solid var(--line); }
.checklist li:last-child { border-bottom: 1px solid var(--line); }
.checklist li::before { content: ""; position: absolute; left: 14px; top: 15px; width: 18px; height: 18px; border: 1px solid var(--ink); background: var(--paper); }
.plain-list { padding-left: 20px; }

.page-nav { background: var(--sea); color: white; }
.page-nav .wrap { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: thin; }
.page-nav a { flex: 0 0 auto; padding: 11px 13px; color: white; font-size: .7rem; font-weight: 780; text-decoration: none; }
.page-nav a:hover { background: rgba(255,255,255,.09); }

.site-footer { background: var(--ink); color: white; padding: 58px 0; }
.footer-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; }
.footer-brand { font: 400 2.1rem/1 var(--serif); }
.footer-copy { max-width: 620px; color: #b7c9cc; font-size: .82rem; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 20px; align-content: start; }
.footer-links a { color: white; font-size: .8rem; }
.footer-meta { grid-column: 1/-1; display: flex; justify-content: space-between; gap: 20px; padding-top: 24px; border-top: 1px solid var(--line-dark); color: #9db2b6; font-size: .7rem; }
.footer-meta a { color: var(--sky); }
.no-js { padding: 12px; background: var(--coral); color: var(--ink); font-weight: 800; }
.hidden { display: none !important; }

@media (max-width: 1080px) {
  .primary-nav { gap: 12px; }
  .primary-nav a { font-size: .72rem; }
  .grid.four { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .legal-layers { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1120px) {
  .menu-toggle { display: inline-flex; }
  .header-inner { min-height: 68px; }
  .brand { min-width: 44px; min-height: 44px; }
  .primary-nav {
    position: fixed; inset: 68px 0 auto 0; display: none; max-height: calc(100vh - 68px);
    overflow-y: auto; padding: 22px; background: var(--sand); border-bottom: 1px solid var(--ink);
    flex-direction: column; align-items: stretch; gap: 0;
  }
  .primary-nav.open { display: flex; }
  .primary-nav a { display: flex; align-items: center; min-width: 44px; min-height: 44px; padding: 11px 4px; border-bottom: 1px solid var(--line); font-size: .9rem; }
  .primary-nav a[aria-current="page"] { border-bottom: 2px solid var(--sea); }
  .primary-nav .nav-cta { margin-top: 12px; text-align: center; }
  .hero-grid, .section-head, .section-head.single, .fate-panel-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 44px; }
  .footer-meta { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 600px) {
  body { font-size: 15px; }
  [id] { scroll-margin-top: 74px; }
  .wrap { padding-inline: 18px; }
  .hero, .page-hero { padding-block: 54px; }
  .hero h1, .page-hero h1 { font-size: clamp(2.6rem, 13.5vw, 4rem); }
  .hero-lede { font-size: 1.02rem; }
  .grid.two, .grid.three, .grid.four, .instrument-grid, .legal-layers, .place-facts, .source-grid { grid-template-columns: 1fr; }
  .comparison-table-wrap { margin-inline: -18px; padding-inline: 18px; }
  .comparison-table-wrap table { min-width: 680px; }
  .world-figure { margin-inline: 0; }
  .world-figure figcaption { font-size: .8rem; }
  .map-scope { font-size: .82rem; }
  .card, .evidence-card, .instrument-card, .source-card { min-width: 0; }
  .place-facts article { min-width: 0; }
  .page-nav .wrap { padding-inline: 10px; }
  .page-nav a { min-height: 44px; display: inline-flex; align-items: center; }
  .storyline { gap: 22px; }
  .story-step { grid-template-columns: 46px minmax(0, 1fr); }
  .story-index { width: 38px; height: 38px; }
  .footer-links { grid-template-columns: 1fr; }
  .footer-links a { display: flex; align-items: center; min-height: 44px; padding-block: 8px; }
  .footer-meta { font-size: .75rem; }
  .route-form fieldset { grid-template-columns: 1fr; }
  .metric-strip { grid-template-columns: minmax(0, 1fr); }
  .metric { min-width: 0; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .metric:last-child { border-bottom: 0; }
  .metric strong, .metric span { min-width: 0; max-width: 100%; overflow-wrap: anywhere; word-break: break-word; }
  .fate-chain { grid-template-columns: minmax(0, 1fr); gap: 1px; }
  .fate-button { width: 100%; min-width: 0; min-height: 108px; padding: 14px; overflow-wrap: anywhere; }
  .fate-button strong, .fate-button small { min-width: 0; max-width: 100%; overflow-wrap: anywhere; word-break: break-word; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  /* Keep keyboard focus explicit when motion effects are disabled, including on mobile. */
  :focus-visible {
    outline: 3px solid var(--coral) !important;
    outline-offset: 3px !important;
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--paper) 78%, transparent) !important;
  }
}

@media print {
  .site-header, .page-nav, .menu-toggle { display: none !important; }
  body { background: white; }
  .section, .page-hero, .hero { break-inside: avoid; }
  a { color: black; }
}

@media (max-width: 860px) {
  .place-reading { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .place-reading > header { position: static; }
  .place-facts { grid-template-columns: minmax(0, 1fr); }
  .place-facts article { border-right: 0; border-bottom: 1px solid var(--ink); }
  .place-facts article:last-child { border-bottom: 0; }
}
@media (max-width: 600px) {
  .place-prose .source-list { grid-template-columns: minmax(0, 1fr); }
  .place-prose .source-list li, .place-prose .source-list a { min-width: 0; overflow-wrap: anywhere; word-break: break-word; }
  .local-nav .wrap { display: flex; max-width: 100%; overflow-x: auto; overscroll-behavior-x: contain; }
}

/* Regional pathway figures: original inline science schematics. */
.region-animation-section { padding-top: 64px; }
.region-animation { margin: 30px 0 0; border: 1px solid rgba(7,47,64,.28); background: var(--ink); color: white; overflow: hidden; }
.region-animation__visual { position: relative; padding: 16px; background: #07394b; }
.region-animation__svg { display:block; width:100%; height:auto; max-height:470px; }
.ra-water { fill:#07394b; }
.ra-grid path { fill:none; stroke:rgba(190,232,232,.13); stroke-width:1; }
.ra-current,.ra-acc { fill:none; stroke:var(--lime); stroke-width:6; stroke-linecap:round; }
.ra-current--ref { stroke:#d9c6ff; stroke-dasharray:9 10; stroke-width:3; }
.ra-thermocline,.ra-mixed,.ra-100,.ra-1000 { fill:none; stroke:rgba(255,255,255,.72); stroke-width:2; stroke-dasharray:7 7; }
.ra-depthwedge { fill:rgba(166,224,243,.1); stroke:#9fdde8; stroke-width:2; }
.ra-winter { fill:none; stroke:#d9c6ff; stroke-width:4; stroke-dasharray:8 7; }
.ra-patch { fill:var(--lime); stroke:#eaffae; stroke-width:2; transform-origin:185px 132px; }
.ra-reference { fill:none; stroke:#d9c6ff; stroke-width:2; stroke-dasharray:4 4; }
.ra-particles { fill:#fff2cf; stroke:#fff2cf; stroke-width:2; stroke-linecap:round; }
.ra-return { fill:none; stroke:#ff8b75; stroke-width:4; stroke-dasharray:9 8; }
.ra-diatoms { fill:none; stroke:var(--lime); stroke-width:4; stroke-linecap:round; stroke-linejoin:round; }
.ra-smallcells,.ra-grazing { fill:#ff8b75; stroke:#ffd2c8; stroke-width:2; }
.ra-eddy { fill:none; stroke:#d9c6ff; stroke-width:3; }
.region-animation svg text { fill:#f7f4eb; font:700 12px/1 var(--sans); letter-spacing:1px; }
.region-animation__legend { display:flex; flex-wrap:wrap; gap:10px; padding:11px 14px 0; font-size:.73rem; }
.region-animation__legend span { display:inline-flex; align-items:center; gap:6px; }
.region-animation__legend span::before { content:""; width:10px; height:10px; border-radius:50%; background:var(--lime); }
.region-animation__legend .conditional::before { background:var(--coral); }
.region-animation__legend .unresolved::before { background:transparent; border:1px dashed #fff; }
.region-animation figcaption { padding:0 30px 16px; color:#c6d8da; font-size:.78rem; }
.js-ready .region-animation__controls { display:flex; }
.region-animation__controls { align-items:stretch; justify-content:space-between; gap:12px; padding:16px 24px; border-top:1px solid rgba(255,255,255,.2); border-bottom:1px solid rgba(255,255,255,.2); }
.region-animation__tabs { display:flex; gap:6px; overflow-x:auto; }
.region-animation button { min-width:44px; min-height:44px; border:1px solid rgba(255,255,255,.45); border-radius:999px; padding:9px 13px; color:#fff; background:transparent; font:750 .75rem var(--sans); cursor:pointer; white-space:nowrap; }
.region-animation button:hover,.region-animation button:focus-visible,.region-animation__phase.is-current { background:var(--lime); border-color:var(--lime); color:var(--ink); outline-offset:3px; }
.region-animation__actions { display:flex; gap:6px; flex:0 0 auto; }
.region-animation__annotation { min-height:92px; padding:19px 26px 22px; color:#eff6f6; font-size:.96rem; }
.region-animation__annotation p { margin:0; }
.region-animation__panel { margin:0; }
.region-animation__panel + .region-animation__panel { margin-top:18px; padding-top:18px; border-top:1px solid rgba(255,255,255,.16); }
.region-animation__panel h3 { margin:0 0 8px; font:700 1rem var(--sans); }
.js-ready .region-animation__panel[hidden] { display:none; }
.region-animation__source { display:block; margin-top:9px; color:#b9d8dc; font-size:.78rem; }
.region-animation__source a { color:#d9c6ff; }
.region-animation__ledger { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); margin-top:0; border:1px solid var(--line); border-top:0; }
.region-animation__ledger article { padding:20px; border-right:1px solid var(--line); background:var(--paper); }
.region-animation__ledger article:last-child { border-right:0; }
.region-animation__ledger h3 { margin:0 0 8px; font-size:1.05rem; }
.region-animation__ledger p { margin:0; font-size:.85rem; }
@media (prefers-reduced-motion: no-preference) {
 .region-animation.is-active[data-region-animation-state="playing"] .ra-patch,.region-animation.is-active[data-region-animation-state="playing"] .ra-eddy { animation:ra-pulse 4.8s ease-in-out 1; }
 .region-animation.is-active[data-region-animation-state="playing"] .ra-particles { animation:ra-sink 6.8s ease-in 1 forwards; }
 .region-animation.is-active[data-region-animation-state="playing"] .ra-current,.region-animation.is-active[data-region-animation-state="playing"] .ra-acc { animation:ra-flow 5.2s linear 1; }
}
@keyframes ra-pulse { 0%,15%{opacity:.35;transform:scale(.75)} 45%,80%{opacity:1;transform:scale(1)} 100%{opacity:.8} }
@keyframes ra-sink { 0%,25%{opacity:0;transform:translateY(-18px)} 40%,100%{opacity:1;transform:translateY(18px)} }
@keyframes ra-flow { from{stroke-dasharray:1 0;stroke-dashoffset:0} to{stroke-dasharray:1 10;stroke-dashoffset:-80} }
@media (prefers-reduced-motion: reduce) { .region-animation [data-anim-node],.region-animation * { animation:none !important; transition:none !important; } }
@media (max-width:700px) {
  /* Controls are deliberately separate from the diagram: two clear stage buttons per row,
     then the playback actions below. This avoids a horizontal scroller or overlapping pills. */
  .js-ready .region-animation__controls { display:grid; grid-template-columns:minmax(0,1fr); padding:13px 16px; }
  .region-animation__tabs { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px; overflow:visible; padding:0; }
  .region-animation__actions { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px; }
  .region-animation button { width:100%; min-height:44px; border-radius:6px; padding:9px 8px; white-space:normal; line-height:1.1; }
  .region-animation__annotation { padding:16px; min-height:126px; }
  .region-animation figcaption { padding:0 16px 13px; }
  .region-animation__ledger { grid-template-columns:1fr; }
  .region-animation__ledger article { border-right:0; border-bottom:1px solid var(--line); }
  .region-animation__ledger article:last-child { border-bottom:0; }
}
@media (prefers-reduced-motion: no-preference) { .region-animation.is-active[data-region-animation-state="playing"] .ra-diatoms { animation:ra-pulse 4.8s ease-in-out 1; } }
/* Stage focus for regional carbon pathway diagrams. */
@media (prefers-reduced-motion: no-preference) {
  .js-ready .region-animation [data-ra-stage] { opacity:.22; transition:opacity .35s ease; }
  .js-ready .region-animation[data-ra-phase="setting"] [data-ra-stage~="setting"],
  .js-ready .region-animation[data-ra-phase="biology"] [data-ra-stage~="biology"],
  .js-ready .region-animation[data-ra-phase="particle"] [data-ra-stage~="particle"],
  .js-ready .region-animation[data-ra-phase="carbon"] [data-ra-stage~="carbon"] { opacity:1; filter:drop-shadow(0 0 5px rgba(210,255,90,.6)); }
}
@media (prefers-reduced-motion: reduce) {
  /* The selected phase remains focused; only temporal effects are removed. */
  .js-ready .region-animation [data-ra-layer] { transition:none !important; }
}
.region-animation__potential .potential-number { display:block; color:var(--sea); font:700 1.5rem/1 var(--serif); margin-bottom:6px; }
.region-animation__potential > span { display:block; font-weight:800; margin-bottom:7px; }
.region-animation__potential a { display:inline-block; margin-top:8px; font-size:.78rem; }

/* Layered regional evidence system. Inline SVG only; distinctions do not rely on color alone. */
.region-animation__visual{padding:0;background:#041c34}.region-animation__svg{max-height:none}.ra-atmosphere{fill:#bdeef0}.ra-surface-line{fill:none;stroke:#f7f4eb;stroke-width:2}.ra-depth-bands path{stroke:rgba(220,247,248,.22);stroke-width:1;stroke-dasharray:3 12}.ra-depth-tick path{stroke:#d1ebec;stroke-width:1}.ra-depth-tick text{font-size:10px!important;fill:#c5e3e4!important;font-weight:600!important;letter-spacing:.04em!important}.ra-bathy{fill:#071827;stroke:#417d8b;stroke-width:1.5}.ra-quiet-zone{fill:rgba(3,11,30,.55)}.ra-domain{fill:rgba(205,255,113,.10);stroke:#d9ff72;stroke-width:2}.ra-domain--reference{fill:rgba(220,198,255,.08);stroke:#d9c6ff;stroke-dasharray:8 7}.ra-current{stroke:#bff35a;stroke-width:5;fill:none;stroke-linecap:round}.ra-current--reference{stroke:#d9c6ff;stroke-width:2.5;stroke-dasharray:9 8}.ra-iron-track{fill:none;stroke:#ffe3a1;stroke-width:3;stroke-dasharray:3 7}.ra-iron-point{fill:#ffe3a1;filter:drop-shadow(0 0 5px rgba(255,227,161,.72))}.ra-organic,.ra-pennate,.ra-chaetoceros,.ra-pseudo,.ra-diatom-chain{fill:none;stroke:#d9ff72;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.ra-eddy{fill:none;stroke:#b9dfff;stroke-width:2.5}.ra-grazer{fill:#ffab91;stroke:#ffd0c5;stroke-width:2}.ra-particle-path{fill:none;stroke:#ffe3a1;stroke-width:2.5;stroke-dasharray:4 7}.ra-particle{fill:#fff1bc}.ra-return{fill:none;stroke:#ff9c82;stroke-width:3;stroke-dasharray:10 7}.ra-instrument{stroke:#f2fbfb;fill:none;stroke-width:2}.ra-instrument text,.ra-callout text{font-size:10px!important;letter-spacing:.04em!important}.ra-callout rect{fill:#061a31;fill-opacity:.85;stroke:#d7f5f2;stroke-width:1}.evidence-badge{display:inline-flex;align-items:center;gap:7px;font-size:.72rem;font-weight:800;letter-spacing:.02em}.evidence-badge i{width:12px;height:12px;display:inline-block;border:2px solid #d9ff72;border-radius:50%}.evidence-badge--reference i{border-color:#d9c6ff;border-radius:0;border-style:dashed}.evidence-badge--conditional i{border-color:#ffe3a1;transform:rotate(45deg);border-radius:0}.evidence-badge--not-established i{border-color:#fff;background:repeating-linear-gradient(135deg,transparent 0 2px,#fff 2px 3px)}.region-animation__legend{padding:14px 20px;background:#061a31;justify-content:flex-start}.region-animation__ledger{grid-template-columns:repeat(5,minmax(0,1fr))}.region-animation__ledger .evidence-badge{margin-bottom:11px}.region-animation__operational>span{font-size:.72rem;font-weight:800;color:var(--sea);display:block;margin-bottom:11px}.region-animation__tabs{gap:7px}.region-animation__phase{display:flex;align-items:center;gap:7px}.region-animation__phase span{opacity:.65;font-size:.67rem}.js-ready .region-animation [data-ra-layer]{opacity:.16;transition:opacity .4s ease,filter .4s ease}.js-ready .region-animation[data-ra-phase="frame"] [data-ra-stage~="frame"],.js-ready .region-animation[data-ra-phase="iron"] [data-ra-stage~="iron"],.js-ready .region-animation[data-ra-phase="community"] [data-ra-stage~="community"],.js-ready .region-animation[data-ra-phase="export"] [data-ra-stage~="export"],.js-ready .region-animation[data-ra-phase="fate"] [data-ra-stage~="fate"],.js-ready .region-animation[data-ra-phase="additionality"] [data-ra-stage~="additionality"]{opacity:1;filter:drop-shadow(0 0 6px rgba(210,255,90,.45))}
.regional-preview-strip{background:#e9f4f2}.regional-preview-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.regional-preview-card{display:block;background:#061a31;color:#fff;border:1px solid rgba(6,28,43,.35);text-decoration:none;overflow:hidden}.regional-preview-card svg{display:block;width:100%;aspect-ratio:1.72;transition:transform .5s ease}.regional-preview-card span,.regional-preview-card small{display:block;padding:0 15px}.regional-preview-card span{padding-top:13px;font-weight:800}.regional-preview-card small{padding:5px 15px 15px;color:#c8e5e5}.regional-preview-card:hover svg,.regional-preview-card:focus-visible svg{transform:scale(1.025)}.ra-preview-motif{fill:rgba(215,255,113,.35);stroke:#d9ff72;stroke-width:3}
@media (prefers-reduced-motion:no-preference){.region-animation.is-active .ra-current{animation:ra-flow 5.5s linear 1}.region-animation.is-active .ra-particle{animation:ra-sink 5.5s ease-in 1}.regional-preview-card{animation:ra-preview-enter .7s ease both}@keyframes ra-preview-enter{from{opacity:.75;transform:translateY(5px)}to{opacity:1;transform:none}}}
@media(max-width:700px){.region-animation__svg{min-height:285px;object-fit:cover;object-position:center}.ra-callout text,.ra-instrument text{font-size:8px!important}.ra-callout:nth-of-type(n+3),.ra-instrument:nth-of-type(n+2){display:none}.region-animation__tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.region-animation__ledger{grid-template-columns:1fr}.regional-preview-grid{grid-template-columns:1fr}.regional-preview-card small{display:none}.regional-preview-card span{padding:11px 13px 12px}}
@media(prefers-reduced-motion:reduce){.region-animation [data-ra-layer]{animation:none!important;transition:none!important}.regional-preview-card svg{animation:none!important;transition:none!important}.regional-preview-card{animation:none!important}}

/* Editorial water-column figures: large, sparse labels; the phase panel carries detail. */
.ra-surface-foam{fill:none;stroke:#f5fffb;stroke-width:2.2;stroke-dasharray:2 7;opacity:.76}.ra-water-grain{mix-blend-mode:screen;pointer-events:none}.ra-twilight{fill:#051e42;opacity:.2}.ra-euc-band{fill:#9de9e0;opacity:.16}.ra-upwelling,.ra-winter-mix{fill:none;stroke:#b9dfff;stroke-width:3;stroke-dasharray:6 7}.ra-sampling-corridor path{fill:none;stroke:#f7f4eb;stroke-width:2;stroke-dasharray:2 8}.ra-sampling-corridor circle{fill:#ffe3a1;stroke:#fff6c7;stroke-width:2}.ra-thermocline{fill:none;stroke:#87c4e7;stroke-width:4;stroke-dasharray:12 7;opacity:.8}.ra-split-rail path{stroke:#f5fcfc;stroke-width:2}.ra-split-rail text{fill:#f5fcfc;font:800 13px/1 var(--sans);letter-spacing:.12em}.ra-acc-front{fill:none;stroke:#e3f9ff;stroke-width:4;stroke-dasharray:16 7}.ra-polar-light{fill:#fff6b0;opacity:.22}.ra-eddy--tracked{stroke:#b9dfff;stroke-width:3}.ra-particle--large{fill:#fff5bf;filter:drop-shadow(0 0 4px rgba(255,245,191,.7))}.ra-particle--small{fill:#d2f3ff}.ra-particle-path--minor{stroke:#d2f3ff;stroke-width:1.5;opacity:.8}.ra-instrument{stroke:#f2fbfb;fill:#07253d;stroke-width:2.2}.ra-instrument text{fill:#fff!important;font:800 13px/1 var(--sans)!important;letter-spacing:.035em!important;paint-order:stroke;stroke:#062039;stroke-width:3px}.ra-callout text{font:800 26px/1 var(--sans)!important;letter-spacing:.025em!important}.ra-callout rect{fill:#061a31;fill-opacity:.91;stroke:#d7f5f2;stroke-width:1.4}.ra-callout--mobile-frame,.ra-callout--mobile-phase{display:none}.region-animation__controls{margin-top:14px;padding:10px;background:#edf7f5;border:1px solid #c4dedb}.region-animation__phase{min-height:44px;font-size:.82rem}.region-animation__actions button{min-height:44px}.region-animation__legend{gap:14px;flex-wrap:wrap}.region-animation__svg{aspect-ratio:960/560;background:#041c34}
@media(max-width:700px){.region-animation__visual{overflow:hidden}.region-animation__svg{width:calc(100% + 48px);max-width:none;margin-left:-24px;min-height:330px;aspect-ratio:auto}.ra-depth-tick text,.ra-instrument text,.ra-split-rail text{display:none}.ra-callout text{font-size:26px!important}.ra-callout rect{height:52px}.ra-callout:nth-of-type(n+4){display:none}.region-animation--equatorial-pacific .ra-callout--desktop-frame{display:none}.region-animation--equatorial-pacific .ra-callout--mobile-frame,.region-animation .ra-callout--mobile-phase{display:inline!important}.region-animation__controls{padding:8px}.region-animation__tabs{gap:6px}.region-animation__phase{justify-content:flex-start;padding:8px 9px;min-height:44px;font-size:.76rem}.region-animation__actions{gap:6px}.region-animation__actions button{min-height:44px;padding:8px 12px}.region-animation__legend{padding:12px 14px;gap:9px}.evidence-badge{font-size:.68rem}}

.region-animation__tabs{position:relative}.region-animation__tabs:before{content:"";position:absolute;left:20px;right:20px;top:50%;height:1px;background:#b9d5d1;z-index:0}.region-animation__phase{position:relative;z-index:1;background:#f8fcfa;border-color:#c7ddd9;color:#315052}.region-animation__phase span{display:inline-grid;place-items:center;width:22px;height:22px;border:1px solid currentColor;border-radius:50%;background:#f8fcfa}.region-animation__phase.is-current{box-shadow:0 2px 8px rgba(6,28,43,.14)}
@media(max-width:700px){.region-animation__tabs:before{display:none}.region-animation__phase span{width:20px;height:20px}.region-animation__legend .evidence-badge:nth-child(3),.region-animation__legend .evidence-badge:nth-child(4){display:none}}

/* Persistent regional ocean scenes: the chapter rail changes focus, not what exists. */
.js-ready .region-animation [data-ra-layer],
.js-ready .region-animation[data-ra-phase] [data-ra-stage] { opacity:1; filter:none; }
.region-animation__svg { overflow:visible; }
.region-animation .ra-callout rect { fill:#08253d; fill-opacity:.78; }
.region-animation .ra-callout text { font-size:15px!important; font-weight:800!important; }
.region-animation .ra-instrument text { font-size:11px!important; }
.region-animation[data-ra-phase="frame"] [data-ra-stage~="frame"],
.region-animation[data-ra-phase="iron"] [data-ra-stage~="iron"],
.region-animation[data-ra-phase="community"] [data-ra-stage~="community"],
.region-animation[data-ra-phase="export"] [data-ra-stage~="export"],
.region-animation[data-ra-phase="fate"] [data-ra-stage~="fate"],
.region-animation[data-ra-phase="additionality"] [data-ra-stage~="additionality"] { filter:drop-shadow(0 0 5px rgba(219,255,132,.42)); }
@media (prefers-reduced-motion:no-preference) {
  .region-animation.is-active .ra-current { animation:ra-flow 8.4s linear infinite; }
  .region-animation.is-active .ra-current--reference { animation:ra-reference-flow 12s linear infinite; }
  .region-animation.is-active .ra-organic,.region-animation.is-active .ra-pennate,.region-animation.is-active .ra-chaetoceros,.region-animation.is-active .ra-pseudo,.region-animation.is-active .ra-diatom-chain { animation:ra-bloom-breathe 5.8s ease-in-out infinite; transform-box:fill-box; transform-origin:center; }
  .region-animation.is-active .ra-particle { animation:ra-particle-settle 6.6s cubic-bezier(.3,.05,.6,1) infinite; }
  .region-animation.is-active .ra-return { animation:ra-return-drift 10.5s linear infinite; }
  .region-animation.is-active .ra-surface-foam { animation:ra-surface-drift 16s linear infinite; }
}
@keyframes ra-reference-flow { to { stroke-dashoffset:-92; } }
@keyframes ra-bloom-breathe { 0%,100% { opacity:.76; transform:scale(.97); } 48% { opacity:1; transform:scale(1.035); } }
@keyframes ra-particle-settle { 0%,15% { opacity:.3; transform:translate(0,-5px); } 58% { opacity:1; transform:translate(4px,16px); } 100% { opacity:.55; transform:translate(7px,27px); } }
@keyframes ra-return-drift { to { stroke-dashoffset:-100; } }
@keyframes ra-surface-drift { to { stroke-dashoffset:-130; } }
@media(max-width:700px){
  .region-animation .ra-callout text { font-size:18px!important; }
  .region-animation .ra-callout rect { fill-opacity:.82; }
  .region-animation .ra-callout:nth-of-type(n+4) { display:inline; }
}

/* Pixi v2 progressive enhancement: the semantic SVG remains in the DOM as no-JS/static fallback. */
.pixi-region-canvas{position:absolute;inset:0;z-index:2;pointer-events:none;border-radius:18px;overflow:hidden}.pixi-region-canvas canvas{width:100%!important;height:100%!important;display:block}.region-animation__visual:has(.pixi-region-canvas)>.region-animation__svg{opacity:.13}.region-animation__visual{min-height:560px;isolation:isolate}@media(max-width:680px){.region-animation__visual{min-height:760px}.region-animation__legend{z-index:4}.pixi-region-canvas{border-radius:12px}}
.region-animation__visual:has(.pixi-region-canvas)>.region-animation__svg{opacity:0}
/* Pixi v2 r2 accessibility and narrow-screen containment overrides. */
.skip-link { z-index: 10050; border-radius: 4px; box-shadow: 0 3px 18px rgba(0,0,0,.32); }
.skip-link:focus { top: 14px; left: 14px; transform: none; }
.region-animation-section, #visual-pathway { scroll-margin-top: 102px; }
html:not(.js-ready) .region-animation__controls { display: none !important; }
html:not(.js-ready) .region-animation__panel { display: block !important; }
.region-animation__controls { background:#082d41; border-color:rgba(214,242,239,.45); }
.region-animation__tabs:before { display:none; }
.region-animation__phase, .region-animation__actions button { background:#103f56; color:#fff; border-color:#d7f1ee; font-weight:800; }
.region-animation__phase span { background:#082d41; }
.region-animation__phase.is-current, .region-animation button:hover, .region-animation button:focus-visible { background:var(--lime); color:#061c2b; border-color:var(--lime); }
.region-animation__phase.is-current span { background:transparent; }
.home-pixi-preview { position:relative; height:210px; margin:0 0 18px; overflow:hidden; border:1px solid rgba(216,255,104,.34); border-radius:12px; background:#041321; box-shadow:0 16px 34px rgba(0,0,0,.25); }
.home-pixi-preview canvas { position:absolute; inset:0; display:block; width:100%!important; height:100%!important; }
.home-pixi-preview svg { display:block; width:100%; height:100%; transition:opacity .2s ease; }
@media(max-width:700px){
  .site-header { z-index:1000; }
  .skip-link:focus { z-index:10060; }
  .region-animation__visual { min-height:860px; overflow:hidden; }
  .pixi-region-canvas { z-index:1; border-radius:0; }
  .region-animation__legend, .region-animation__controls, .region-animation__annotation { position:relative; z-index:3; }
  .region-animation__controls { padding:10px; background:#082d41; }
  .region-animation__phase, .region-animation__actions button { min-height:48px; font-size:.76rem; line-height:1.12; }
  .home-pixi-preview { height:164px; margin-top:14px; }
}
/* Override earlier generic .region-animation button rules with actual opaque high-contrast controls. */
.region-animation .region-animation__phase,
.region-animation .region-animation__actions button { background:#103f56; color:#fff; border-color:#d7f1ee; text-shadow:none; }
.region-animation .region-animation__phase span { background:#082d41; }
.region-animation .region-animation__phase.is-current,
.region-animation .region-animation__phase:hover,
.region-animation .region-animation__phase:focus-visible,
.region-animation .region-animation__actions button:hover,
.region-animation .region-animation__actions button:focus-visible { background:var(--lime); color:#061c2b; border-color:var(--lime); }
@media(max-width:700px){
  /* Keep mobile scene labels and phase-critical material below the 69px sticky header when the visual is focused or captured. */
  .region-animation__visual { scroll-margin-top:84px; }
}

/* R5: a single aspect-preserving scene surface. The fallback SVG participates only without Pixi. */
.region-animation__visual:has(.pixi-region-canvas) {
  min-height:0;
  aspect-ratio:960 / 560;
  position:relative;
  overflow:hidden;
  background:#041c34;
}
.region-animation__visual:has(.pixi-region-canvas) > .region-animation__svg {
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  margin:0;
  min-height:0;
  opacity:0;
  pointer-events:none;
}
.pixi-region-atmosphere {
  position:absolute;
  inset:0;
  z-index:0;
  overflow:hidden;
  pointer-events:none;
  background-image:var(--pixi-atmosphere);
  background-repeat:no-repeat;
  background-position:center;
  background-size:cover;
}
.pixi-region-atmosphere::after {
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(4,19,34,.04) 0%,rgba(2,14,31,.04) 48%,rgba(1,8,22,.48) 100%);
}
.pixi-region-canvas {
  position:absolute;
  inset:0;
  z-index:1;
  overflow:hidden;
  contain:layout paint;
  border-radius:0;
}
.pixi-region-canvas canvas {
  display:block;
  width:100% !important;
  height:100% !important;
  max-width:none;
  max-height:none;
}
@media (max-width:680px) {
  .region-animation__visual:has(.pixi-region-canvas) {
    min-height:0;
    aspect-ratio:640 / 860;
  }
  /* Fixed CSS-pixel mobile metadata rail: never inherit the 640px scene scale. */
  .pixi-region-mobile-rail {
    position:absolute;
    top:10px;
    left:10px;
    right:10px;
    z-index:3;
    display:grid;
    gap:4px;
    max-width:calc(100% - 20px);
    color:#edf9f7;
    pointer-events:none;
    text-shadow:0 1px 2px rgba(0,0,0,.7);
  }
  .pixi-region-mobile-rail__head {
    display:grid;
    justify-items:start;
    gap:14px; /* measured title/chip clearance remains >=12 CSS px. */
  }
  .pixi-region-mobile-rail__title,
  .pixi-region-mobile-rail__chip,
  .pixi-region-mobile-rail__status,
  .pixi-region-mobile-rail__cue {
    box-sizing:border-box;
    display:block;
    width:max-content;
    max-width:100%;
    font-family:Arial,sans-serif;
    font-size:12px;
    line-height:1.25;
    letter-spacing:.055em;
    font-weight:800;
  }
  .pixi-region-mobile-rail__title {
    font-size:13px;
    line-height:1.18;
    padding:4px 8px;
    color:#f3d98b;
    background:rgba(3,20,34,.84);
    border:1px solid rgba(214,242,239,.28);
    border-radius:7px;
  }
  .pixi-region-mobile-rail__chip {
    padding:4px 8px;
    color:#ffd27c;
    background:rgba(3,20,34,.91);
    border:1px solid rgba(245,169,75,.45);
    border-radius:999px;
  }
  .pixi-region-mobile-rail__status {
    padding:3px 7px;
    color:#ecf8f7;
    background:rgba(3,20,34,.76);
    border-left:2px solid var(--lime);
  }
  .pixi-region-mobile-rail__cue {
    padding-left:2px;
    color:#d9f0e9;
  }
}

/* R5 homepage: CSS owns the static water-column plates; Pixi only draws the light current overlay. */
.home-pixi-preview { isolation:isolate; }
.home-pixi-atmosphere {
  position:absolute;
  inset:0;
  z-index:0;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  overflow:hidden;
  pointer-events:none;
}
.home-pixi-atmosphere__panel {
  background-image:var(--pixi-atmosphere);
  background-size:cover;
  background-position:center;
  box-shadow:inset -1px 0 0 rgba(226,255,250,.17);
}
.home-pixi-preview canvas { z-index:1; }
.home-pixi-preview svg { position:relative; z-index:0; }
/* Cinematic v3: visual story remains one uninterrupted ocean volume. */
.region-animation__visual.is-cinematic .region-animation__svg { opacity:0; pointer-events:none; }
.region-animation__visual.is-cinematic { background:#04172a; overflow:hidden; }
.region-animation__visual.is-cinematic .pixi-region-atmosphere { filter:saturate(.82) contrast(1.08); transform:scale(1.025); }
.region-animation__visual.is-cinematic .pixi-region-atmosphere::after { background:linear-gradient(180deg,rgba(0,13,29,.05),rgba(1,19,39,.25) 44%,rgba(0,7,23,.78)); }
.region-animation__visual.is-cinematic .pixi-region-canvas { mix-blend-mode:normal; }
.region-animation-section .region-animation__legend { position:static; margin:12px 0 0; background:transparent; border:0; padding:0; }
@media (max-width:680px){.region-animation__visual:has(.pixi-region-canvas){aspect-ratio:640/710}.region-animation__visual.is-cinematic{min-height:0}.region-animation__visual.is-cinematic .pixi-region-canvas{inset:0}}
@media (prefers-reduced-motion:reduce){.region-animation__visual.is-cinematic .pixi-region-atmosphere{transform:none}.region-animation__visual.is-cinematic canvas{filter:saturate(.9)}}
/* v4 editorial timeline: no chrome inside the ocean volume. */
.region-animation__controls{background:transparent;border:0;border-top:1px solid rgba(6,48,68,.22);padding:16px 0 0}
.region-animation__tabs{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:0;border-bottom:1px solid rgba(6,48,68,.18)}
.region-animation__phase{background:transparent!important;border:0!important;border-radius:0!important;box-shadow:none!important;padding:9px 7px 13px!important;color:#315566;position:relative;min-height:38px!important;justify-content:flex-start}
.region-animation__phase:after{content:"";position:absolute;bottom:-1px;left:7px;right:7px;height:2px;background:transparent}.region-animation__phase.is-current:after{background:#1e8190}.region-animation__phase.is-current{color:#0b3f50!important}.region-animation__actions button{background:transparent!important;color:#315566!important;border:0!important;text-decoration:underline;text-underline-offset:3px;padding:6px!important;min-height:34px!important}
@media(max-width:680px){.region-animation__tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.region-animation__phase{font-size:.7rem!important}.region-animation__actions{margin-top:7px}}
/* v5: editorial rail may compress safely at 320px; controls retain touch targets. */
.region-animation__controls,.region-animation__tabs,.region-animation__phase,.region-animation__annotation,.region-animation__panel{min-width:0}
.region-animation__phase{white-space:normal;overflow-wrap:anywhere}
.region-animation__phase span{flex:0 0 auto}
.region-animation__actions button{min-height:44px!important}
@media(max-width:360px){.region-animation__tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.region-animation__phase{padding:9px 4px 12px!important;font-size:.66rem!important}.region-animation__actions{flex-wrap:wrap}.region-animation__annotation,.region-animation__panel,.region-animation figcaption{overflow-wrap:anywhere}}

/* V6: continuous photographic material fields replace diagrammatic homepage thumbnails. */
.regional-preview-cinematic {
  position:relative;
  width:100%;
  aspect-ratio:16 / 9;
  overflow:hidden;
  isolation:isolate;
  background:#03162a;
}
.regional-preview-cinematic img,
.regional-preview-cinematic canvas {
  position:absolute;
  display:block;
  max-width:none;
  pointer-events:none;
}
.regional-preview-cinematic__plate {
  inset:0;
  z-index:0;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.88) contrast(1.05);
}
.regional-preview-cinematic__community,
.regional-preview-cinematic__export {
  z-index:1;
  object-fit:contain;
  mix-blend-mode:screen;
  transition:opacity .18s linear;
}
.regional-preview-cinematic__community { width:76%; left:2%; top:21%; opacity:.82; }
.regional-preview-cinematic__export { width:62%; left:22%; top:35%; opacity:.68; }
.regional-preview-card--subarctic-north-pacific .regional-preview-cinematic__community { width:78%; left:4%; top:21%; }
.regional-preview-card--subarctic-north-pacific .regional-preview-cinematic__export { width:66%; left:22%; top:38%; }
.regional-preview-card--southern-ocean .regional-preview-cinematic__community { width:72%; left:6%; top:20%; }
.regional-preview-card--southern-ocean .regional-preview-cinematic__export { width:30%; height:68%; left:36%; top:30%; }
.regional-preview-cinematic canvas { inset:0; z-index:2; width:100%!important; height:100%!important; }
.regional-preview-cinematic.is-pixi-ready > img { opacity:0; }
.regional-preview-card:hover .regional-preview-cinematic__plate,
.regional-preview-card:focus-visible .regional-preview-cinematic__plate { transform:scale(1.018); }
@media(max-width:700px){
  .regional-preview-cinematic { aspect-ratio:16 / 8.8; }
}
@media(prefers-reduced-motion:reduce){
  .regional-preview-cinematic img { transition:none!important; }
  .regional-preview-card:hover .regional-preview-cinematic__plate,
  .regional-preview-card:focus-visible .regional-preview-cinematic__plate { transform:none; }
}

/* V6 regional fallback and interpretation remain outside the uninterrupted ocean scene. */
.region-animation__fallback {
  position:absolute;
  inset:0;
  overflow:hidden;
  background:#03162a;
}
.region-animation__visual:has(> .region-animation__fallback) { min-height:0; aspect-ratio:960 / 560; }
.region-animation__fallback img,
.region-animation__fallback-veil { position:absolute; display:block; pointer-events:none; }
.region-animation__fallback-plate { inset:0; width:100%; height:100%; object-fit:cover; filter:saturate(.86) contrast(1.06); }
.region-animation__fallback-community,
.region-animation__fallback-export { object-fit:contain; mix-blend-mode:screen; }
.region-animation__fallback-community { z-index:1; width:64%; left:6%; top:19%; opacity:.72; }
.region-animation__fallback-export { z-index:1; width:58%; left:22%; top:32%; opacity:.62; }
.region-animation--subarctic-north-pacific .region-animation__fallback-community { width:68%; left:7%; top:18%; }
.region-animation--subarctic-north-pacific .region-animation__fallback-export { width:62%; left:23%; top:34%; }
.region-animation--southern-ocean .region-animation__fallback-community { width:62%; left:7%; top:18%; }
.region-animation--southern-ocean .region-animation__fallback-export { width:auto; height:73%; left:37%; top:27%; }
.region-animation__fallback-veil { inset:0; z-index:2; background:linear-gradient(180deg,rgba(2,20,36,.03),rgba(2,19,37,.08) 47%,rgba(1,11,27,.35)); }
.region-animation__visual:has(.pixi-region-canvas) > .region-animation__fallback { opacity:0; pointer-events:none; }

.region-animation__semantic-rail {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  margin:0;
  border:1px solid rgba(6,48,68,.22);
  border-top:0;
  background:#f4faf7;
}
.region-animation__semantic-rail > div { min-width:0; padding:14px 16px 15px; border-right:1px solid rgba(6,48,68,.16); }
.region-animation__semantic-rail > div:last-child { border-right:0; }
.region-animation__semantic-rail dt { margin:0 0 6px; color:#315566; font:800 .68rem/1.25 var(--sans); letter-spacing:.08em; text-transform:uppercase; }
.region-animation__semantic-rail dd { margin:0; color:#153b49; font-size:.79rem; line-height:1.42; overflow-wrap:anywhere; }

.region-animation__study {
  display:grid;
  grid-template-columns:minmax(120px,.24fr) minmax(0,.76fr);
  gap:10px 20px;
  align-items:start;
  margin-top:15px;
  padding:14px 0 4px;
  border-top:1px solid rgba(6,48,68,.20);
}
.region-animation__study-label { padding-top:8px; color:#315566; font:800 .70rem/1.25 var(--sans); letter-spacing:.08em; text-transform:uppercase; }
.region-animation__study > strong { padding-top:5px; font:700 1rem/1.35 var(--serif); }
.region-animation__study > p,
.region-animation__study-notes p { margin:0; color:#254958; font-size:.88rem; line-height:1.5; }
.region-animation__study-choices { display:flex; flex-wrap:wrap; gap:6px; }
.region-animation .region-animation__study-choices button {
  min-width:0;
  min-height:44px;
  padding:8px 14px;
  border:1px solid #6b8991;
  border-radius:2px;
  background:#fff;
  color:#173f4d;
  font:800 .76rem/1.2 var(--sans);
  letter-spacing:.025em;
}
.region-animation .region-animation__study-choices button[aria-pressed="true"],
.region-animation .region-animation__study-choices button:hover,
.region-animation .region-animation__study-choices button:focus-visible { background:#0b485b; border-color:#0b485b; color:#fff; }
.region-animation__study-notes { grid-column:2; }
.region-animation__actions[hidden] { display:none!important; }

@media(max-width:760px){
  .region-animation__semantic-rail { grid-template-columns:1fr 1fr; }
  .region-animation__semantic-rail > div { border-bottom:1px solid rgba(6,48,68,.16); }
  .region-animation__semantic-rail > div:nth-child(2n) { border-right:0; }
  .region-animation__semantic-rail > div:nth-last-child(-n+2) { border-bottom:0; }
}
@media(max-width:680px){
  .region-animation__visual:has(> .region-animation__fallback) { aspect-ratio:640 / 710; }
}
@media(max-width:480px){
  .region-animation__semantic-rail { grid-template-columns:1fr; }
  .region-animation__semantic-rail > div { border-right:0; border-bottom:1px solid rgba(6,48,68,.16)!important; padding:12px 13px; }
  .region-animation__semantic-rail > div:last-child { border-bottom:0!important; }
  .region-animation__study { grid-template-columns:1fr; gap:8px; }
  .region-animation__study-label { padding-top:0; }
  .region-animation__study-notes { grid-column:1; }
  .region-animation__study-choices { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); width:100%; }
  .region-animation .region-animation__study-choices button { width:100%; padding:8px 7px; }
  .region-animation__fallback-community { width:96%; left:-10%; top:24%; }
  .region-animation__fallback-export { width:90%; left:8%; top:36%; }
  .region-animation--subarctic-north-pacific .region-animation__fallback-community { width:98%; left:-6%; top:23%; }
  .region-animation--subarctic-north-pacific .region-animation__fallback-export { width:94%; left:6%; top:38%; }
  .region-animation--southern-ocean .region-animation__fallback-community { width:96%; left:-8%; top:23%; }
  .region-animation--southern-ocean .region-animation__fallback-export { width:auto; height:70%; left:28%; top:29%; }
}

/* V7: no-JS stills use the same open-ocean crop and local Southern study footprint as Pixi. */
.region-animation--equatorial-pacific .region-animation__fallback-plate {
  transform:scale(1.04);
  object-position:center 52%;
  filter:saturate(.84) contrast(1.06) brightness(.94);
}
.region-animation--equatorial-pacific .region-animation__fallback-veil {
  background:linear-gradient(180deg,rgba(2,20,36,.03),rgba(2,22,51,.10) 43%,rgba(1,8,27,.38));
}
.region-animation--southern-ocean .region-animation__fallback-community {
  width:42%;
  left:20%;
  top:30%;
}
@media(max-width:480px){
  .region-animation--southern-ocean .region-animation__fallback-community { width:72%; left:5%; top:30%; }
}

/* V7 reader controls: high-contrast controls and complete evidence/context on narrow screens. */
.region-animation__controls {
  margin-top:10px;
  background:#082d41;
  border-top-color:rgba(214,242,239,.38);
}
.region-animation .region-animation__phase {
  color:#f2fbfa;
  background:#103f56 !important;
  border:1px solid rgba(215,241,238,.34) !important;
  padding:10px 9px 12px !important;
  min-height:48px !important;
  line-height:1.22;
  overflow-wrap:normal;
  word-break:normal;
  hyphens:none;
}
.region-animation .region-animation__phase span { color:#dcebea; background:#082d41; opacity:1; }
.region-animation .region-animation__phase.is-current,
.region-animation .region-animation__phase:hover,
.region-animation .region-animation__phase:focus-visible {
  color:#061c2b !important;
  background:var(--lime) !important;
  border-color:var(--lime) !important;
  box-shadow:inset 0 -3px 0 #1e8190 !important;
}
.region-animation .region-animation__phase.is-current span,
.region-animation .region-animation__phase:hover span,
.region-animation .region-animation__phase:focus-visible span { color:#061c2b; background:rgba(255,255,255,.38); }
.region-animation__study-label,
.region-animation__study > p,
.region-animation__study-notes p { color:#dcebea; }
.region-animation__study > strong { color:#fff; }

@media(max-width:700px){
  .region-animation__legend .evidence-badge:nth-child(3),
  .region-animation__legend .evidence-badge:nth-child(4) { display:inline-flex; }
  .region-animation__legend { gap:9px 13px; }
  .region-animation__legend .evidence-badge { flex:1 1 145px; font-size:.72rem; line-height:1.35; }
  .region-animation__controls { padding:12px 10px 10px; }
  .region-animation__tabs { grid-template-columns:repeat(3,minmax(0,1fr)); gap:6px; }
  .region-animation .region-animation__phase { font-size:.74rem !important; padding:9px 7px 11px !important; }
  .region-animation__annotation { min-height:0; padding:17px 15px 19px; color:#f3f9f8; font-size:.92rem; line-height:1.5; }
  .region-animation__source { color:#cfe3e4; font-size:.78rem; line-height:1.45; }
  .region-animation__study > p,
  .region-animation__study-notes p { color:#e1eeee; font-size:.88rem; line-height:1.52; }
}
@media(max-width:480px){
  .region-animation__tabs { grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media(max-width:360px){
  .region-animation .region-animation__phase { font-size:.73rem !important; padding:9px 7px 11px !important; }
}

/* Reader-facing fate key: the first trajectory follows the selected study;
   recycling and unresolved return remain common comparison pathways. */
.region-animation__fate-key {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;
  margin:0;
  padding:0;
  background:#163c4d;
  color:#edf8f6;
  font-size:.76rem;
  font-weight:750;
  letter-spacing:.012em;
}
.region-animation__fate-key span {
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  gap:10px;
  padding:9px 12px;
  background:#082c40;
}
.region-animation__fate-key i { display:inline-block; flex:0 0 auto; }
.region-animation__fate-key-sinking i {
  width:15px;
  height:25px;
  border-left:5px solid #ffd787;
  border-radius:60%;
  box-shadow:0 0 8px rgba(255,196,92,.68);
  transform:translateX(4px);
}
.region-animation__fate-key-sinking.is-subduction i {
  width:30px;
  height:14px;
  border-left:0;
  border-top:5px solid #85cbc8;
  border-radius:55% 45% 0 0;
  box-shadow:0 -2px 7px rgba(92,169,174,.58);
  transform:rotate(12deg);
}
.region-animation__fate-key-sinking.is-no-transfer i {
  width:24px;
  height:0;
  border-left:0;
  border-top:3px dotted #bfd3d2;
  border-radius:0;
  box-shadow:none;
  transform:none;
  opacity:.72;
}
.region-animation__fate-key-recycling i {
  width:32px;
  height:16px;
  border-top:5px solid #6ffbf0;
  border-radius:50% 50% 0 0;
  box-shadow:0 -2px 7px rgba(91,240,229,.54);
}
.region-animation__fate-key-unresolved i {
  width:31px;
  border-top:4px dashed #958bd3;
  transform:rotate(18deg);
  filter:drop-shadow(0 0 4px rgba(137,128,204,.62));
}
@media(max-width:680px){
  .region-animation__fate-key { grid-template-columns:1fr; }
  .region-animation__fate-key span { justify-content:flex-start; min-height:42px; padding:8px 14px; }
}
/* Seven-study rail: one horizontal editorial sequence on narrow screens. */
@media(max-width:680px){.region-animation__study-choices{display:flex!important;flex-wrap:nowrap!important;overflow-x:auto;overscroll-behavior-inline:contain;gap:0;width:100%;max-width:100%;padding:0 10px 4px;scroll-padding-inline:0;scroll-snap-type:x proximity;scrollbar-width:thin;scrollbar-color:rgba(217,255,114,.88) rgba(220,235,234,.16)}.region-animation__study-choices::after{content:"";flex:0 0 calc(100% - 44px)}.region-animation__study-choices::-webkit-scrollbar{height:6px}.region-animation__study-choices::-webkit-scrollbar-track{background:rgba(220,235,234,.12)}.region-animation__study-choices::-webkit-scrollbar-thumb{background:rgba(217,255,114,.88);border-radius:6px}.region-animation .region-animation__study-choices button{flex:0 0 auto;width:auto!important;min-width:44px;min-height:44px;padding:10px 13px;border-width:0 0 1px;border-radius:0;background:transparent;color:#dcebea;scroll-snap-align:start}.region-animation .region-animation__study-choices button[aria-pressed="true"]{background:transparent;color:#fff;border-color:var(--lime);box-shadow:inset 0 -2px 0 var(--lime)}}

/* Progressive navigation: without JavaScript, every destination remains reachable. */
@media (max-width:1120px) {
  html:not(.js-ready) .header-inner { flex-wrap:wrap; align-items:center; }
  html:not(.js-ready) .menu-toggle { display:none; }
  html:not(.js-ready) .primary-nav {
    position:static;
    inset:auto;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    flex:0 0 100%;
    max-height:none;
    overflow:visible;
    padding:0 0 14px;
    border:0;
    background:transparent;
  }
  html:not(.js-ready) .primary-nav a { min-width:0; white-space:normal; }
  html:not(.js-ready) .primary-nav .nav-cta { margin-top:0; border-radius:2px; }
}

@media (max-width: 600px) {
  .world-map-stage { aspect-ratio: 4 / 5; }
  .map-region-label { font-size: clamp(.75rem,3.5vw,.82rem); letter-spacing: .035em; }
  .map-region-label--north { top: 15%; }
  .map-region-label--equatorial { top: 49%; }
  .map-region-label--southern { top: 84%; }
  .world-figure .map-scope { margin: 14px 14px 0; }
  .world-figure figcaption { padding: 12px 14px 16px; }
}

/* Keep Pause and Replay at the same mobile touch-target minimum as chapter controls. */
@media (max-width:700px) {
  .region-animation__actions button { min-height:48px !important; }
}
.biology-gutter{margin:10px 0 0;padding:12px;display:flex;flex-wrap:wrap;gap:8px;border:1px solid var(--line);background:var(--paper);font-size:.82rem}.biology-gutter span{padding:3px 6px;border:1px solid var(--line)}.biology-data table{width:100%;border-collapse:collapse;margin:18px 0}.biology-data th,.biology-data td{padding:10px;border:1px solid var(--line);text-align:left;vertical-align:top}.morphology-key{display:flex;gap:12px;align-items:center}.morphology-key svg{width:120px;stroke:currentColor;fill:none;stroke-width:2}@media(max-width:700px){.biology-data{overflow-x:auto}.biology-data table{min-width:620px}}
.biology-data .wrap{max-width:100%;overflow-x:auto}.biology-data table{max-width:100%}
.region-science-cockpit{display:grid;grid-template-columns:minmax(0,7fr) minmax(220px,3fr);grid-template-rows:auto auto;column-gap:16px;align-items:start}.region-science-cockpit>.region-animation__visual{grid-column:1}.region-science-cockpit>.region-animation__controls{grid-column:1;margin-top:10px}.biology-evidence-gutter{grid-column:2;grid-row:1 / span 2;max-height:calc(100% + 0px);overflow:auto}@media(max-width:980px){.region-science-cockpit{display:block}.region-science-cockpit>.region-animation__controls{margin-top:10px}.biology-evidence-gutter{max-height:none;overflow:visible}}@media(max-width:680px){.page-nav .wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.page-nav a{min-height:48px;white-space:normal;overflow-wrap:anywhere;display:flex;align-items:center}}@media(max-width:420px){.page-nav .wrap{grid-template-columns:repeat(2,minmax(0,1fr))}}
/* v14 phase semantics and compact appendix comparison */
.region-animation__panel[aria-live="polite"]{contain:content}
.biology-comparison-cues{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:0 0 12px}.biology-comparison-cues article{min-width:0;padding:12px;border:1px solid var(--line);background:var(--paper);display:grid;gap:4px}.biology-comparison-cues span,.biology-comparison-cues small{font-size:.76rem;color:var(--muted)}.biology-comparison-cues strong{font-size:.92rem;line-height:1.3}.biology-data .morphology-key{margin:8px 0;color:var(--muted);font-size:.82rem}.biology-data table{margin:14px 0}@media(max-width:700px){.biology-comparison-cues{grid-template-columns:1fr}.biology-comparison-cues article{padding:10px}}
/* v14 route-specific measurement availability */
.measurement-availability{margin-top:8px;border-top:1px solid var(--line);padding-top:8px;width:100%}.measurement-availability h3{margin:0 0 5px;font-size:.76rem}.measurement-availability__route{border-top:1px solid var(--line);padding:5px 0}.measurement-availability__route summary{cursor:pointer;font-size:.78rem;font-weight:700}.measurement-availability__route dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 8px;margin:7px 0 0}.measurement-availability__route div{display:flex;justify-content:space-between;gap:5px;font-size:.7rem}.measurement-availability__route dt{color:var(--muted)}.measurement-availability__route dd{margin:0;text-align:right}.measurement-availability__route [data-measurement-state="observed"]{color:#157061}.measurement-availability__route [data-measurement-state="derived"]{color:#806000}.measurement-availability__route [data-measurement-state="not resolved"]{color:#694981}@media(max-width:980px){.measurement-availability__route dl{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:420px){.measurement-availability__route dl{grid-template-columns:repeat(2,minmax(0,1fr))}}
/* v15 science instrument: semantic phase panels, no rendering dependency. */
.science-instrument{padding:12px;border:1px solid var(--line);background:var(--paper);font-size:.82rem}.science-instrument header{display:grid;gap:2px}.science-instrument__chemistry{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}.science-instrument__chemistry span{padding:3px 6px;border:1px solid var(--line)}.science-instrument__phase{display:none}.region-animation[data-ra-phase="community"] .science-instrument__phase--community,.region-animation[data-ra-phase="fate"] .science-instrument__phase--fate,.region-animation[data-ra-phase="additionality"] .science-instrument__phase--additionality{display:block}.science-instrument__tiles{display:grid;grid-template-columns:minmax(180px,1fr) minmax(140px,.78fr);gap:8px}.science-instrument__tile{min-width:0;padding:8px;border:1px solid var(--line);display:grid;gap:4px;background:#073447;color:#f4fbf9}.science-instrument__tile svg{width:100%;height:112px;stroke:#d9ff72;fill:none;stroke-width:3}.science-instrument__tile--reference svg{height:96px;stroke:#b9dfff}.science-instrument__tile strong{font-size:14px;line-height:1.2;color:#fff}.science-instrument__tile small{font-size:.72rem}.science-instrument__scale{margin:6px 0 0;font-size:.72rem}.science-instrument__horizon{display:inline-block;padding:10px;background:#103f56;color:#fff;border:1px solid #d9ff72}.science-instrument__measurements{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px 8px;margin:0}.science-instrument__measurements div{display:flex;justify-content:space-between;gap:6px;font-size:.72rem}.science-instrument__measurements dt{color:var(--muted)}.science-instrument__measurements dd{margin:0;text-align:right}.science-instrument__measurements [data-measurement-state="observed"]{color:#157061}.science-instrument__measurements [data-measurement-state="derived"]{color:#806000}.science-instrument__measurements [data-measurement-state="not resolved"]{color:#694981}.biology-table-scroll:focus-visible{outline:3px solid var(--lime);outline-offset:4px}.biology-table-scroll__hint{display:none}@media(max-width:980px){.science-instrument__tiles{grid-template-columns:minmax(150px,1fr) minmax(120px,.8fr)}.science-instrument__tile svg{height:96px}.science-instrument__tile--reference svg{height:80px}.science-instrument__tile strong{font-size:12px}.biology-table-scroll__hint{display:block;margin:0 0 8px;font-size:.78rem;font-weight:700}.biology-data table th:last-child,.biology-data table td:last-child{min-width:116px}}@media(max-width:420px){.science-instrument__tiles,.science-instrument__measurements{grid-template-columns:1fr}.science-instrument__tile--reference{min-width:120px}}
/* v15.1 acceptance: high-contrast instrument, complete phase rail, source affordance. */
.science-instrument{background:#fff;color:#102b3a}.science-instrument :is(header,strong,h3,p,span,small,dt,dd,summary,a){color:#102b3a}.science-instrument a{color:#075b78;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:2px}.science-instrument a:focus-visible{outline:3px solid #073447;outline-offset:3px}.science-instrument__chemistry span,.science-instrument [data-measurement-state]{border-color:#526f79;background:#f3f8f7;color:#102b3a!important}.science-instrument .observed::before,.science-instrument .unknown::before{content:"● ";font-weight:900}.science-instrument .unknown::before{content:"◇ "}.science-instrument__tile{background:#073447}.science-instrument__tile :is(strong,small){color:#fff}.science-instrument__horizon{color:#fff!important;background:#073447}.science-instrument__measurements dt,.science-instrument__measurements dd{color:#102b3a!important}.region-animation .region-animation__tabs{grid-template-columns:repeat(6,minmax(0,1fr))}.region-animation .region-animation__phase{white-space:normal!important;overflow:visible!important;text-overflow:clip!important;min-height:48px!important;line-height:1.18!important;align-items:center}@media(min-width:681px) and (max-width:1100px){.region-animation .region-animation__tabs{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:480px){.region-animation .region-animation__tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.region-animation .region-animation__phase{font-size:.72rem!important}}.biology-data table th:last-child,.biology-data table td:last-child{min-width:145px}
/* Six columns are reserved for genuinely wide viewports; preserve complete labels otherwise. */
.region-animation .region-animation__tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.region-animation .region-animation__phase{min-width:0;overflow-wrap:anywhere!important;word-break:normal!important}@media(min-width:1600px){.region-animation .region-animation__tabs{grid-template-columns:repeat(6,minmax(0,1fr))}}
/* v15.2 action contrast and compact-table scroll cue. */
.region-animation .region-animation__actions button:not([disabled]){min-height:48px!important;background:#082d41!important;color:#fff!important;border:1px solid #d7f1ee!important;text-decoration:none!important}.region-animation .region-animation__actions button:not([disabled]):hover,.region-animation .region-animation__actions button:not([disabled]):focus-visible{background:var(--lime)!important;color:#061c2b!important;border-color:var(--lime)!important;outline:3px solid #082d41;outline-offset:3px}.region-animation .region-animation__actions button[disabled]{min-height:48px!important;background:#dbe5e4!important;color:#52636b!important;border:1px solid #9badaa!important;text-decoration:none!important;opacity:1}
@media(max-width:420px){.biology-table-scroll{position:relative}.biology-table-scroll__hint{position:sticky;right:0;z-index:2;padding:6px 10px;background:linear-gradient(90deg,rgba(255,255,255,0),#fff 28%);text-align:right;pointer-events:none}.biology-table-scroll__hint::after{content:" Source →";font-weight:900;color:#073447}}