:root {
  --paper: #f2f0e9;
  --paper-deep: #e6e2d8;
  --ink: #161918;
  --ink-soft: #303633;
  --steel: #69726e;
  --line: #c7c8c1;
  --green: #009a44;
  --blue: #0075c9;
  --orange: #e56b2f;
  --forecast: #a7ada9;
  --white: #f7f7f2;
  --header-h: 64px;
  --max: 1280px;
  --pad: clamp(20px, 4vw, 64px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 24px); }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; }
button { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 1000; padding: 10px 16px; color: white; background: var(--blue); }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 100;
  height: var(--header-h); display: flex; align-items: center; gap: 30px;
  padding: 0 var(--pad); color: var(--white);
  background: rgba(22, 25, 24, .97);
  border-bottom: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 8px 28px rgba(0,0,0,.16);
  backdrop-filter: blur(12px);
}
.wordmark { display: flex; align-items: center; gap: 10px; text-decoration: none; font-size: 13px; font-weight: 700; letter-spacing: -.02em; }
.wordmark-mark { width: 19px; height: 19px; border: 2px solid currentColor; border-radius: 50%; position: relative; }
.wordmark-mark::after { content: ""; position: absolute; left: 17px; top: 7px; width: 18px; height: 2px; background: currentColor; }
.chapter-nav { margin-left: auto; display: flex; gap: 24px; }
.chapter-nav a { font-size: 12px; font-weight: 700; text-decoration: none; }
.progress { position: absolute; bottom: 0; left: 0; width: 100%; height: 2px; background: rgba(255,255,255,.12); }
.progress span { display: block; width: 0; height: 100%; background: var(--green); }

main section[id] { scroll-margin-top: calc(var(--header-h) + 24px); }

.dark-section { color: var(--white); background: var(--ink); }
.section { padding: clamp(100px, 13vw, 190px) var(--pad); }
.section > *, .dark-section > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.section-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: center; }
.section-copy { grid-column: 1 / span 5; }
.eyebrow { margin: 0 0 20px; color: var(--steel); font: 700 12px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; }
.eyebrow.light { color: #aeb6b2; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { word-break: keep-all; overflow-wrap: normal; }
h1, h2 { letter-spacing: -.055em; line-height: .98; }
h2 { margin-bottom: 32px; font-size: clamp(48px, 7vw, 98px); font-weight: 850; }
h3 { margin-bottom: 12px; font-size: clamp(23px, 2.1vw, 34px); line-height: 1.2; letter-spacing: -.03em; }
.section-copy > p:not(.eyebrow):not(.source-line), .portfolio-heading > p:not(.eyebrow), .mfc-heading > p:not(.eyebrow), .inflection-heading > p:not(.eyebrow), .epilogue-copy > p:not(.eyebrow) { max-width: 650px; color: var(--ink-soft); font-size: clamp(17px, 1.4vw, 21px); }
.dark-section p { color: #b8c0bc; }
.dark-section .inflection-heading > p:not(.eyebrow),
.dark-section .mfc-heading > p:not(.eyebrow),
.dark-section .epilogue-copy > p:not(.eyebrow) { color: #b8c0bc; }
.source-line { margin-top: 24px; color: var(--steel); font-size: 11px; }
.light-source { color: #8f9994 !important; }

.hero { position: relative; min-height: 100svh; overflow: hidden; padding: 120px var(--pad) 72px; display: grid; align-items: center; }
.hero::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, transparent, black 25%, black 75%, transparent); }
.hero-copy { position: relative; z-index: 2; max-width: var(--max); width: 100%; margin: auto; }
.hero h1 { max-width: 930px; margin: 0; font-size: clamp(76px, 12vw, 172px); font-weight: 900; }
.hero-lead { margin: 40px 0 0; max-width: 700px; font-size: clamp(17px, 1.6vw, 23px); color: #c1c8c4 !important; }
.hero-formula { position: absolute; right: 5vw; bottom: 12vh; z-index: 2; color: rgba(255,255,255,.18); font-weight: 900; font-size: clamp(80px, 13vw, 190px); line-height: 1; }
.hero-formula sub { font-size: .35em; vertical-align: -.05em; }
.scroll-cue { position: absolute; z-index: 4; left: var(--pad); bottom: 32px; display: flex; align-items: center; gap: 14px; font-size: 11px; text-decoration: none; letter-spacing: .08em; }
.scroll-cue i { display: block; width: 60px; height: 1px; background: currentColor; position: relative; }
.scroll-cue i::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-right: 1px solid; border-bottom: 1px solid; transform: rotate(-45deg); }

.prologue { min-height: 100vh; display: grid; align-items: center; }
.product-network { grid-column: 7 / -1; position: relative; min-height: 560px; }
.product-network svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.product-network path { fill: none; stroke: var(--line); stroke-width: 1.5; stroke-dasharray: 5 5; }
.network-core, .network-node { position: absolute; z-index: 2; display: grid; place-content: center; text-align: center; background: var(--paper); border: 1px solid var(--ink); }
.network-core { left: 50%; top: 50%; width: 180px; height: 180px; border-radius: 50%; transform: translate(-50%,-50%); }
.network-core strong { font-size: 19px; letter-spacing: .06em; }
.network-core span { color: var(--blue); font-size: 42px; font-weight: 800; }
.network-node { width: 130px; height: 90px; }
.network-node strong { font-size: 24px; }
.network-node span { color: var(--steel); font-size: 12px; }
.network-node.n1 { left: 2%; top: 10%; }.network-node.n2 { right: 2%; top: 10%; }.network-node.n3 { left: 2%; bottom: 10%; }.network-node.n4 { right: 2%; bottom: 10%; }

.history { background: var(--paper-deep); }
.history-intro { max-width: var(--max); margin-bottom: 100px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.history-intro .eyebrow { grid-column: 1 / -1; }
.history-intro h2 { margin: 0; }
.history-intro > p:last-child { align-self: end; max-width: 560px; font-size: 19px; }
.timeline-key { max-width: var(--max); display: flex; justify-content: flex-end; gap: 28px; margin: -48px 0 34px; color: var(--steel); font-size: 11px; font-weight: 750; letter-spacing: .04em; }
.timeline-key span { display: flex; align-items: center; gap: 8px; }
.timeline-key i { width: 9px; height: 9px; border-radius: 50%; }
.industry-dot { background: var(--ink); }.gs-dot { background: var(--green); }
.timeline { position: relative; max-width: var(--max); }
.timeline::before { content: ""; position: absolute; left: calc(25% - 1px); top: 0; bottom: 0; width: 2px; background: var(--ink); }
.timeline-item { display: grid; grid-template-columns: 25% 75%; min-height: 360px; border-top: 1px solid rgba(22,25,24,.22); }
.year { padding: 30px 40px 0 0; font: 700 clamp(30px, 4vw, 58px)/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: -.06em; }
.timeline-body { position: relative; padding: 30px 0 90px 8%; }
.timeline-body::before { content: ""; position: absolute; left: -8px; top: 43px; width: 14px; height: 14px; background: var(--paper-deep); border: 2px solid var(--ink); border-radius: 50%; }
.phase { color: var(--steel); font: 700 11px/1 ui-monospace, monospace; letter-spacing: .12em; }
.history-lanes { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr); gap: clamp(22px, 4vw, 58px); margin-top: 28px; }
.history-lanes > div { position: relative; padding-top: 18px; border-top: 2px solid var(--ink); }
.history-lanes .gs-lane { padding: 18px 20px 20px; border-color: var(--green); background: rgba(0,154,68,.065); }
.lane-label { display: block; margin-bottom: 14px; color: var(--steel); font: 750 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .13em; }
.gs-lane .lane-label { color: var(--green); }
.history-lanes p { margin: 0; color: var(--ink-soft); font-size: 16px; line-height: 1.75; }
.history-lanes b { color: var(--green); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.history-source { max-width: var(--max); padding-left: 25%; }
.brand-note, .warning-note { display: inline-flex; align-items: center; gap: 10px; padding: 9px 12px; margin-top: 10px; border-left: 3px solid var(--green); background: rgba(0,154,68,.07); font-size: 13px; font-weight: 650; }
.brand-note span { color: var(--green); }
.warning-note { border-color: var(--orange); background: rgba(229,107,47,.08); }

.complex-map { padding-top: clamp(120px, 14vw, 200px); padding-bottom: clamp(120px, 14vw, 200px); overflow: hidden; }
.map-heading { max-width: var(--max); display: grid; grid-template-columns: 1.35fr .65fr; gap: 50px; align-items: end; }
.map-heading .eyebrow { grid-column: 1/-1; }.map-heading h2 { margin: 0; }.map-heading > p:last-child { max-width: 520px; margin: 0 0 8px; font-size: 18px; }
.map-stage { max-width: var(--max); display: grid; grid-template-columns: minmax(480px, 1.25fr) minmax(280px, .75fr); min-height: 680px; margin-top: 80px; border: 1px solid #414744; background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px); background-size: 40px 40px; }
.korea-map { position: relative; min-height: 680px; border-right: 1px solid #414744; }
.korea-map > svg { position: absolute; inset: 5% 9%; width: 82%; height: 90%; }
.land-shape { fill: rgba(255,255,255,.04); stroke: #78827d; stroke-width: 2; }.coast-line { fill: none; stroke: #4b5550; stroke-width: 1; stroke-dasharray: 5 8; }.hub-route { fill: none; stroke: var(--green); stroke-width: 2; stroke-dasharray: 4 9; }
.map-hub { position: absolute; display: grid; grid-template-columns: 18px auto; column-gap: 9px; align-items: center; padding: 9px 12px; border: 1px solid #59625e; color: #c5ccc8; background: rgba(22,25,24,.9); text-align: left; cursor: pointer; transform: translate(-50%,-50%); transition: border-color .2s, background-color .2s, transform .2s; }
.map-hub i { grid-row: 1/3; width: 12px; height: 12px; border: 2px solid currentColor; border-radius: 50%; box-shadow: 0 0 0 6px rgba(255,255,255,.04); }.map-hub span { font-size: 16px; font-weight: 800; }.map-hub small { color: #7f8984; font: 700 10px ui-monospace, monospace; }
.map-hub:hover, .map-hub:focus-visible { border-color: var(--green); transform: translate(-50%,-50%) scale(1.04); }.map-hub.is-active { color: var(--white); border-color: var(--green); background: var(--green); }.map-hub.is-active small { color: rgba(255,255,255,.7); }
.map-hub.daesan { left: 36%; top: 56%; }.map-hub.ulsan { left: 67%; top: 71%; }.map-hub.yeosu { left: 49%; top: 82%; }
.hub-detail { display: flex; flex-direction: column; justify-content: space-between; padding: 38px; }
.hub-index { color: var(--green); font: 750 11px ui-monospace, monospace; letter-spacing: .13em; }.hub-detail h3 { margin: 24px 0 20px; font-size: clamp(36px, 4vw, 62px); }.hub-detail p { margin: 0; color: #b8c0bc; font-size: 16px; line-height: 1.75; }.hub-facts { display: grid; margin-top: 48px; border-top: 1px solid #414744; }.hub-facts div { display: grid; grid-template-columns: 92px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid #414744; }.hub-facts dt { color: #78827d; font-size: 11px; }.hub-facts dd { margin: 0; font-size: 13px; font-weight: 700; }
.yeosu-detail { max-width: var(--max); margin-top: 28px; border: 1px solid #414744; }
.yeosu-map-head { display: grid; grid-template-columns: 1fr minmax(240px, 360px); gap: 32px; align-items: end; padding: 30px; border-bottom: 1px solid #414744; }
.yeosu-map-head span { color: var(--green); font: 750 11px ui-monospace, monospace; letter-spacing: .12em; }
.yeosu-map-head h3 { margin: 18px 0 0; font-size: clamp(28px, 3.2vw, 48px); line-height: 1.12; }
.yeosu-map-head p { margin: 0; color: #9fa8a3; font-size: 14px; line-height: 1.7; }
.yeosu-map-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; min-height: 560px; }
.yeosu-map-canvas { position: relative; min-height: 560px; overflow: hidden; background: #111614; border-right: 1px solid #414744; }
.yeosu-map-canvas > svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.yeosu-water { fill: #101c1a; }.yeosu-land { fill: #242b27; stroke: #657069; stroke-width: 2; }.yeosu-island { fill: #202824; stroke: #505b55; }
.parcel-grid path { fill: #2a312d; stroke: #46504b; stroke-width: 1; }.gs-parcel { fill: rgba(38,144,70,.22); stroke: #54a86d; stroke-width: 2; }.gs-parcel.secondary { opacity: .72; }.gs-parcel-label { fill: #91d5a5; font: 800 12px ui-monospace, monospace; letter-spacing: .08em; }
.yeosu-road { fill: none; stroke: #737c77; stroke-width: 2; stroke-dasharray: 5 7; }.yeosu-road.main { stroke: #a0a8a4; stroke-width: 4; stroke-dasharray: none; }
.yeosu-pipeline { fill: none; stroke: var(--green); stroke-width: 2; opacity: .65; }.sea-label { fill: #53645d; font: 700 13px ui-monospace, monospace; letter-spacing: .18em; }.district-label { fill: #89938e; font: 700 10px ui-monospace, monospace; letter-spacing: .1em; }
.plant-pins { position: absolute; inset: 0; }
.plant-zone { position: absolute; left: var(--x); top: var(--y); width: 32px; height: 32px; padding: 0; transform: translate(-50%,-50%); border: 1px solid #7c8781; border-radius: 50%; color: #dce1de; background: rgba(22,25,24,.95); font: 750 11px ui-monospace, monospace; cursor: pointer; box-shadow: 0 3px 12px rgba(0,0,0,.28); transition: .2s ease; }
.plant-zone:hover, .plant-zone:focus-visible { z-index: 3; border-color: var(--green); transform: translate(-50%,-50%) scale(1.16); outline: none; }
.plant-zone.is-active { z-index: 2; width: 42px; height: 42px; border-color: #8bd1a1; color: var(--white); background: var(--green); box-shadow: 0 0 0 8px rgba(38,144,70,.15); }
.plant-detail { display: flex; flex-direction: column; justify-content: space-between; padding: 34px 28px; background: #191d1b; }
.plant-detail-number { color: var(--green); font: 750 12px ui-monospace, monospace; letter-spacing: .1em; }.plant-detail h4 { margin: 18px 0 16px; font-size: 28px; line-height: 1.25; }.plant-detail p { margin: 0; color: #aeb6b2; font-size: 14px; line-height: 1.75; }
.plant-detail-tag { align-self: flex-start; margin-top: 40px; padding: 8px 10px; border: 1px solid #4c5651; color: #cbd2ce; font-size: 11px; }
.plant-detail-actions { display: grid; gap: 10px; margin-top: 24px; }.plant-process-link { display: flex; justify-content: space-between; align-items: center; min-height: 48px; padding: 11px 14px; color: var(--white); background: var(--green); text-decoration: none; font-size: 12px; font-weight: 800; }.plant-process-link:hover, .plant-process-link:focus-visible { background: #237d3d; outline: 2px solid #9bd5ad; outline-offset: 2px; }
.company-legend { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #414744; }
.legend-company { min-height: 52px; display: flex; gap: 10px; align-items: center; padding: 10px 14px; border: 0; border-right: 1px solid #353c38; border-bottom: 1px solid #353c38; color: #aeb6b2; background: transparent; text-align: left; cursor: pointer; }
.legend-company:nth-child(4n) { border-right: 0; }.legend-company:hover, .legend-company:focus-visible { color: var(--white); background: #202623; outline: none; }.legend-company.is-active { color: var(--white); background: rgba(38,144,70,.18); }
.legend-company b { flex: 0 0 24px; color: var(--green); font: 750 10px ui-monospace, monospace; }.legend-company span { font-size: 11px; line-height: 1.3; }

.data-story { display: grid; grid-template-columns: minmax(300px, 4fr) minmax(0, 8fr); gap: clamp(40px, 8vw, 120px); max-width: none; align-items: start; }
.data-story > * { margin: 0; }
.sticky-copy { position: sticky; top: 130px; }
.sticky-copy h2 { font-size: clamp(46px, 5vw, 78px); }
.sticky-copy h2 em { color: var(--blue); font-style: normal; }
.sticky-copy > p:not(.eyebrow) { max-width: 480px; }
.legend { display: flex; gap: 20px; margin-top: 30px; color: var(--steel); font-size: 12px; }
.legend span { display: flex; align-items: center; gap: 7px; }
.legend i { width: 26px; border-top: 2px solid var(--blue); }.legend i.dashed { border-top-style: dashed; border-color: var(--forecast); }
.chart-shell { min-width: 0; padding: 24px; border: 1px solid var(--line); background: rgba(255,255,255,.25); }
.chart-header { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--line); font-size: 12px; font-weight: 700; }
.chart { min-height: 520px; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart text { fill: currentColor; font-family: inherit; }
.axis-line, .grid-line { stroke: currentColor; opacity: .16; vector-effect: non-scaling-stroke; }
.chart-line { fill: none; stroke: var(--blue); stroke-width: 3; vector-effect: non-scaling-stroke; }
.forecast-line { fill: none; stroke: var(--forecast); stroke-width: 3; stroke-dasharray: 7 7; vector-effect: non-scaling-stroke; }
.point { fill: var(--paper); stroke: var(--blue); stroke-width: 3; vector-effect: non-scaling-stroke; }
.point.forecast { stroke: var(--forecast); }
.chart-label { font-size: 11px; font-weight: 650; }
.chart-value { font-size: 13px; font-weight: 800; }
.data-table-wrap { border-top: 1px solid var(--line); }
.data-table-wrap summary { cursor: pointer; padding: 14px 0; font-size: 12px; font-weight: 700; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 8px; text-align: left; border-top: 1px solid var(--line); }
.table-unit { margin: 10px 0 0; color: var(--steel); font-size: 11px; }
.mobile-scroll-hint { display: none; }

.inflection { padding: clamp(120px, 15vw, 210px) var(--pad); }
.inflection-heading { display: grid; grid-template-columns: 2fr 1fr; gap: 50px; align-items: end; }
.inflection-heading .eyebrow { grid-column: 1 / -1; }
.inflection-heading h2 { margin: 0; }
.inflection-heading > p:last-child { font-size: 19px; }
.compare-panel { position: relative; margin-top: 90px; padding: 24px; border: 1px solid #414744; }
.compare-toolbar { display: flex; justify-content: flex-end; gap: 6px; }
.view-toggle { min-height: 44px; padding: 8px 14px; border: 1px solid #58605c; color: #aeb6b2; background: transparent; cursor: pointer; }
.view-toggle.is-active { color: var(--ink); background: var(--white); }
.compare-chart { min-height: 560px; }
.compare-chart .chart-line.korea { stroke: var(--green); }.compare-chart .chart-line.china { stroke: var(--orange); }
.compare-chart .point.korea { stroke: var(--green); fill: var(--ink); }.compare-chart .point.china { stroke: var(--orange); fill: var(--ink); }
.growth-stat { width: max-content; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 34px; margin: 18px 0 14px auto; padding: 14px 16px; background: #191d1b; border-left: 2px solid var(--green); }
.growth-stat div { display: grid; }.growth-stat span { color: #aeb6b2; font-size: 11px; }.growth-stat strong { font-size: 28px; }.growth-stat div:nth-child(2) strong { color: var(--orange); }.growth-stat p { grid-column: 1/-1; margin: 0; font-size: 10px; }
.crisis-statement { margin-top: 160px; text-align: center; font-size: clamp(24px, 4vw, 56px); line-height: 1.25; }
.crisis-statement p { margin: 0; color: #7c8782; }.crisis-statement strong { display: block; }
.crisis-facts { margin-top: 100px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #414744; border-bottom: 1px solid #414744; }
.crisis-facts article { padding: 40px 5%; border-right: 1px solid #414744; }.crisis-facts article:last-child { border-right: 0; }
.crisis-facts span { color: var(--orange); font-size: clamp(46px, 7vw, 90px); font-weight: 850; letter-spacing: -.06em; }.crisis-facts p { margin: 10px 0 0; font-size: 13px; }

.supply-story { background: #e8e5dd; }
.supply-heading { max-width: var(--max); display: grid; grid-template-columns: 1.4fr .6fr; gap: 40px; align-items: end; }
.supply-heading .eyebrow { grid-column: 1 / -1; }
.supply-heading h2 { margin: 0; font-size: clamp(54px, 7.5vw, 108px); }
.supply-heading > p:last-child { max-width: 540px; margin: 0 0 8px; color: var(--ink-soft); font-size: 18px; }
.supply-panel { max-width: var(--max); margin-top: 80px; border-top: 1px solid var(--ink); }
.metric-controls { display: grid; grid-template-columns: repeat(4, 1fr); border-left: 1px solid var(--ink); }
.metric-toggle { min-height: 106px; display: flex; flex-direction: column; justify-content: space-between; align-items: flex-start; padding: 17px 18px; border: 0; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); color: var(--ink); background: transparent; text-align: left; cursor: pointer; transition: color .2s, background-color .2s; }
.metric-toggle span { color: var(--steel); font-size: 11px; font-weight: 750; letter-spacing: .04em; }
.metric-toggle b { font-size: clamp(22px, 2.5vw, 36px); letter-spacing: -.05em; }
.metric-toggle:hover, .metric-toggle:focus-visible { background: rgba(255,255,255,.5); }
.metric-toggle.is-active { color: var(--white); background: var(--ink); }
.metric-toggle.is-active span { color: #aeb6b2; }
.supply-chart-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 280px; min-height: 570px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.supply-chart { min-width: 0; padding: 28px 16px 16px; }
.supply-chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.supply-series { fill: none; stroke-width: 3; vector-effect: non-scaling-stroke; transition: opacity .25s, stroke-width .25s; }
.supply-series.demand { stroke: var(--orange); }.supply-series.exports { stroke: var(--green); }.supply-series.shipments { stroke: var(--blue); }
.supply-series.is-muted, .supply-point.is-muted { opacity: .12; }
.supply-series.is-selected { stroke-width: 5; }
.supply-point { cursor: pointer; transition: opacity .2s, r .2s; }
.supply-point circle { fill: #e8e5dd; stroke-width: 3; vector-effect: non-scaling-stroke; }
.supply-point.demand circle { stroke: var(--orange); }.supply-point.exports circle { stroke: var(--green); }.supply-point.shipments circle { stroke: var(--blue); }
.supply-point.is-year circle { fill: var(--ink); }
.supply-point:focus { outline: none; }.supply-point:focus circle { stroke-width: 6; }
.supply-detail { display: flex; flex-direction: column; justify-content: space-between; padding: 30px 24px; border-left: 1px solid var(--ink); background: rgba(255,255,255,.3); }
.detail-year { color: var(--steel); font: 750 13px/1 ui-monospace, monospace; letter-spacing: .1em; }
.detail-values { display: grid; gap: 18px; margin: 38px 0; }
.detail-values div { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: baseline; padding-bottom: 10px; border-bottom: 1px solid rgba(22,25,24,.22); }
.detail-values span { color: var(--steel); font-size: 11px; }.detail-values strong { font-size: 27px; letter-spacing: -.05em; }.detail-values small { grid-column: 1/-1; color: var(--steel); font-size: 10px; }
.detail-note { margin: 0; font-size: 14px; line-height: 1.65; }
.year-controls { display: grid; grid-template-columns: repeat(5, 1fr); border-left: 1px solid var(--ink); }
.year-button { min-height: 54px; border: 0; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); color: var(--steel); background: transparent; font: 750 12px ui-monospace, monospace; cursor: pointer; }
.year-button:hover, .year-button:focus-visible { background: rgba(255,255,255,.5); }
.year-button.is-active { color: var(--white); background: var(--green); }
.supply-table-wrap { border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.supply-table-wrap summary { padding: 16px; }
.supply-table-wrap table { margin-bottom: 10px; }

.gs-history { min-height: 100vh; display: grid; align-items: center; }
.gs-label { color: var(--green); }
.gs-rail { grid-column: 7 / -1; position: relative; display: grid; gap: 34px; padding-left: 90px; }
.gs-rail::before { content: ""; position: absolute; left: 28px; top: 20px; bottom: 20px; width: 4px; background: var(--green); }
.gs-rail > div { position: relative; display: grid; grid-template-columns: 72px 120px 1fr; align-items: baseline; border-bottom: 1px solid var(--line); padding-bottom: 20px; }
.gs-rail > div::before { content: ""; position: absolute; left: -69px; top: 8px; width: 16px; height: 16px; border-radius: 50%; background: var(--paper); border: 4px solid var(--green); }
.gs-rail time { color: var(--steel); font-family: ui-monospace, monospace; }.gs-rail strong { font-size: 23px; }.gs-rail span { color: var(--steel); }

.yeosu-network { background: var(--paper-deep); }
.network-heading { max-width: var(--max); display: grid; grid-template-columns: 1.25fr .75fr; gap: 50px; align-items: end; }.network-heading .eyebrow { grid-column: 1/-1; }.network-heading h2 { margin: 0; }.network-heading > p:last-child { max-width: 560px; margin: 0 0 8px; color: var(--ink-soft); font-size: 18px; }
.network-controls { max-width: var(--max); display: flex; justify-content: flex-end; margin-top: 70px; }
.chain-toggle { min-height: 46px; padding: 10px 18px; border: 1px solid var(--ink); border-right: 0; color: var(--ink); background: transparent; font-weight: 700; cursor: pointer; }.chain-toggle:last-child { border-right: 1px solid var(--ink); }.chain-toggle:hover, .chain-toggle:focus-visible { background: rgba(255,255,255,.5); }.chain-toggle.is-active { color: var(--white); background: var(--ink); }
.value-chain-shell { max-width: var(--max); overflow-x: auto; border: 1px solid var(--ink); background-image: linear-gradient(rgba(22,25,24,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(22,25,24,.045) 1px, transparent 1px); background-size: 32px 32px; }
.map-process-bridge { max-width: var(--max); display: grid; grid-template-columns: 64px 1fr auto; gap: 22px; align-items: center; margin: 18px auto 0; padding: 22px 24px; border: 1px solid var(--ink); border-bottom: 0; background: rgba(255,255,255,.36); }.bridge-marker { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 50%; color: var(--white); background: var(--green); font: 800 15px ui-monospace, monospace; box-shadow: 0 0 0 8px rgba(38,144,70,.12); }.map-process-bridge small { display: block; margin-bottom: 6px; color: var(--green); font: 750 9px ui-monospace, monospace; letter-spacing: .1em; }.map-process-bridge strong { font-size: 17px; }.map-process-bridge p { margin: 5px 0 0; color: var(--ink-soft); font-size: 12px; }.map-process-bridge a { display: flex; align-items: center; min-height: 44px; color: var(--ink); font-size: 11px; font-weight: 800; white-space: nowrap; }
.value-chain { position: relative; min-width: 920px; height: 690px; padding-top: 40px; }.value-chain > svg { position: absolute; inset: 40px 0 0; width: 100%; height: 650px; }.chain-stage-labels { height: 40px; display: grid; grid-template-columns: repeat(4,1fr); border-bottom: 1px solid rgba(22,25,24,.22); }.chain-stage-labels span { padding: 12px 14px; border-right: 1px solid rgba(22,25,24,.14); color: var(--steel); font: 700 9px ui-monospace, monospace; letter-spacing: .1em; }.chain-line { fill: none; stroke: #6f7974; stroke-width: 2; vector-effect: non-scaling-stroke; transition: opacity .25s, stroke .25s, stroke-width .25s; }.chain-line.olefin { stroke: var(--blue); }.chain-line.aromatic { stroke: var(--orange); }.chain-line.polymer { stroke: var(--green); }.chain-line.is-muted { opacity: .08; }.chain-line.is-active { stroke-width: 5; }
.chain-node { position: absolute; left: var(--x); top: calc(var(--y) + 40px); width: 170px; min-height: 112px; display: flex; flex-direction: column; justify-content: space-between; padding: 14px; border: 1px solid var(--ink); background: var(--paper-deep); transition: opacity .25s, transform .25s, box-shadow .25s; }.chain-node span { color: var(--steel); font: 750 10px ui-monospace, monospace; letter-spacing: .09em; }.chain-node strong { font-size: 25px; line-height: 1.05; letter-spacing: -.04em; }.chain-node small { color: var(--steel); font-size: 10px; }.chain-node.source { color: var(--white); background: var(--ink); }.chain-node.process { border-top: 5px solid var(--blue); }.chain-node.product { border-top: 5px solid var(--orange); }.chain-node.output { border-top: 5px solid var(--green); }.chain-node.compact { min-height: 98px; }.chain-node.is-muted { opacity: .12; }.chain-node.is-active { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(22,25,24,.12); }
.yeosu-network.is-arriving .map-process-bridge { animation: bridgePulse 1.2s ease both; }.yeosu-network.is-arriving .chain-node.source { animation: sourcePulse 1.2s ease both; }
@keyframes bridgePulse { 0%,100% { background: rgba(255,255,255,.36); } 35% { background: rgba(38,144,70,.18); } } @keyframes sourcePulse { 35% { box-shadow: 0 0 0 14px rgba(38,144,70,.2); transform: translateY(-4px); } }

.mfc-section { padding: clamp(110px, 13vw, 180px) var(--pad); }
.mfc-heading { max-width: var(--max); }
.mfc-heading h2 { max-width: 1000px; }
.mfc-heading p:not(.eyebrow) { max-width: 700px; font-size: 19px; }
.process-board { max-width: var(--max); display: grid; grid-template-columns: 220px 1fr 230px; gap: 10px; align-items: stretch; margin-top: 80px; padding: 28px; border: 1px solid #414744; background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px); background-size: 32px 32px; }
.feed-list, .output-list { display: grid; align-content: center; gap: 10px; z-index: 2; }
.feed { min-height: 58px; text-align: left; border: 1px solid #4a524e; color: #aeb6b2; background: var(--ink); cursor: pointer; }
.feed span { display: inline-block; min-width: 44px; color: #67706c; font: 700 10px ui-monospace, monospace; }
.feed.is-active { color: var(--white); border-color: var(--blue); background: rgba(0,117,201,.12); }
.process-core { position: relative; min-height: 460px; }
.process-core svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.flow { fill: none; stroke-width: 3; vector-effect: non-scaling-stroke; transition: opacity .25s, stroke-width .25s; }
.flow.input { stroke: var(--blue); }.flow.output { stroke: var(--green); }.flow.is-muted { opacity: .12; }.flow.is-highlighted { stroke-width: 7; }
.core-ring { position: absolute; z-index: 2; left: 50%; top: 50%; width: 190px; height: 190px; display: grid; place-content: center; text-align: center; transform: translate(-50%,-50%); border: 2px solid var(--white); border-radius: 50%; background: var(--ink); box-shadow: 0 0 0 24px rgba(255,255,255,.035); }
.core-ring strong { font-size: 46px; letter-spacing: -.04em; }.core-ring span { color: #87918c; font: 700 10px/1.4 ui-monospace, monospace; letter-spacing: .08em; }
.output-list > div { padding: 12px 14px; border-left: 2px solid var(--green); background: rgba(0,154,68,.07); }
.output-list span { display: block; color: #8f9994; font: 700 10px ui-monospace, monospace; }.output-list strong { font-size: 32px; line-height: 1; }.output-list small { margin-left: 4px; color: #8f9994; font-size: 10px; }
.process-source { max-width: var(--max); }

.portfolio-heading { max-width: var(--max); margin-bottom: 70px; }.portfolio-heading h2 { max-width: 950px; }
.portfolio-grid { display: grid; grid-template-columns: repeat(4, 1fr); max-width: var(--max); border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.portfolio-grid article { min-height: 210px; display: flex; flex-direction: column; justify-content: space-between; padding: 22px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.portfolio-grid article.accent { color: var(--white); background: var(--green); }
.portfolio-grid span { font: 700 11px ui-monospace, monospace; letter-spacing: .08em; }.portfolio-grid strong { font-size: clamp(54px, 6vw, 86px); line-height: 1; letter-spacing: -.07em; }.portfolio-grid small { color: var(--steel); }.portfolio-grid .accent small { color: rgba(255,255,255,.72); }

.epilogue { padding: clamp(130px, 16vw, 230px) var(--pad); }
.epilogue-copy h2 { font-size: clamp(70px, 11vw, 160px); }.epilogue-copy p:not(.eyebrow) { max-width: 680px; font-size: 20px; }
.shifts { margin-top: 100px; border-top: 1px solid #454c48; }
.shifts > div { display: grid; grid-template-columns: 60px 1fr 120px 1fr; gap: 20px; align-items: center; min-height: 110px; border-bottom: 1px solid #454c48; }
.shifts span { color: #65706b; font: 700 11px ui-monospace, monospace; }.shifts p { margin: 0; font-size: clamp(20px, 3vw, 36px); }.shifts i { height: 1px; background: #65706b; position: relative; }.shifts i::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-right: 1px solid; border-bottom: 1px solid; transform: rotate(-45deg); }.shifts strong { color: var(--green); font-size: clamp(20px, 3vw, 36px); }
.final-statement { margin: 150px 0 0; padding: 0; border: 0; font-size: clamp(28px, 4vw, 56px); line-height: 1.35; letter-spacing: -.04em; }.final-statement em { color: var(--green); font-style: normal; }

.method { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; border-top: 1px solid var(--line); }.method h2 { font-size: 48px; }.method > div:last-child { max-width: 700px; }.prototype-note { color: var(--orange); font-size: 13px; font-weight: 700; }
footer { display: flex; justify-content: space-between; gap: 20px; padding: 30px var(--pad); color: #aeb6b2; background: var(--ink); font-size: 12px; } footer a { display: flex; align-items: center; min-height: 44px; text-decoration: none; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .chapter-nav { display: none; }
  .section-grid, .history-intro, .inflection-heading, .method { grid-template-columns: 1fr; }
  .section-copy, .product-network, .gs-rail { grid-column: auto; }
  .product-network { min-height: 500px; margin-top: 50px; }
  .history-intro .eyebrow { grid-column: auto; }
  .data-story { grid-template-columns: 1fr; }
  .sticky-copy { position: static; }
  .process-board { grid-template-columns: 170px 1fr; }
  .output-list { grid-column: 1/-1; grid-template-columns: repeat(4, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .inflection-heading .eyebrow { grid-column: auto; }
  .history-lanes, .supply-heading { grid-template-columns: 1fr; }
  .map-heading, .network-heading { grid-template-columns: 1fr; }
  .map-heading .eyebrow, .network-heading .eyebrow { grid-column: auto; }
  .map-stage { grid-template-columns: 1fr; }
  .korea-map { border-right: 0; border-bottom: 1px solid #414744; }
  .hub-detail { min-height: 410px; }
  .yeosu-map-layout { grid-template-columns: 1fr; }.yeosu-map-canvas { border-right: 0; border-bottom: 1px solid #414744; }.plant-detail { min-height: 230px; }.company-legend { grid-template-columns: repeat(3, 1fr); }.legend-company:nth-child(4n) { border-right: 1px solid #353c38; }.legend-company:nth-child(3n) { border-right: 0; }
  .map-process-bridge { grid-template-columns: 56px 1fr; }.map-process-bridge a { grid-column: 2; }
  .supply-heading .eyebrow { grid-column: auto; }
  .supply-chart-wrap { grid-template-columns: 1fr; }
  .supply-detail { display: grid; grid-template-columns: 110px 1fr; gap: 18px; border-top: 1px solid var(--ink); border-left: 0; }
  .detail-values { margin: 0; }.detail-note { grid-column: 1/-1; }
}

@media (max-width: 620px) {
  :root { --header-h: 56px; }
  .wordmark, .scroll-cue { min-height: 44px; }
  .wordmark { font-size: 11px; }
  .hero { padding-top: 100px; }
  .hero h1 { font-size: clamp(64px, 21vw, 108px); }
  .hero-lead br { display: none; }
  .hero-formula { right: 15px; bottom: 14vh; }
  .section { padding-top: 100px; padding-bottom: 100px; }
  h2 { font-size: clamp(46px, 15vw, 72px); }
  .network-node { width: 100px; }.network-core { width: 145px; height: 145px; }
  .network-node.n1, .network-node.n3 { left: 0; }.network-node.n2, .network-node.n4 { right: 0; }
  .timeline::before { left: 20px; }
  .timeline-item { grid-template-columns: 1fr; padding-left: 48px; min-height: 0; }
  .year { padding: 28px 0 0; font-size: 32px; }
  .timeline-body { padding: 14px 0 70px; }
  .timeline-body::before { left: -35px; top: -26px; }
  .timeline-key { justify-content: flex-start; flex-wrap: wrap; margin: -40px 0 30px; }
  .history-lanes { gap: 18px; margin-top: 22px; }
  .history-source { padding-left: 48px; }
  .map-stage { min-height: 0; margin-top: 55px; }.korea-map { min-height: 510px; }.korea-map > svg { inset: 3%; width: 94%; height: 94%; }.map-hub { padding: 7px 9px; }.map-hub span { font-size: 13px; }.map-hub.daesan { left: 35%; }.map-hub.ulsan { left: 70%; }.hub-detail { min-height: 390px; padding: 26px 20px; }
  .yeosu-detail { margin-left: -1px; margin-right: -1px; }.yeosu-map-head { grid-template-columns: 1fr; padding: 24px 20px; }.yeosu-map-canvas { min-height: 390px; overflow-x: auto; }.yeosu-map-canvas > svg, .plant-pins { min-width: 720px; }.plant-zone { width: 44px; height: 44px; }.plant-zone.is-active { width: 48px; height: 48px; }.plant-detail { padding: 26px 20px; }.company-legend { grid-template-columns: repeat(2, 1fr); }.legend-company:nth-child(3n) { border-right: 1px solid #353c38; }.legend-company:nth-child(2n) { border-right: 0; }
  .map-process-bridge { grid-template-columns: 44px 1fr; gap: 15px; padding: 18px 16px; }.bridge-marker { width: 40px; height: 40px; }.map-process-bridge p { display: none; }.map-process-bridge a { grid-column: 1/-1; }
  .network-controls { display: grid; grid-template-columns: 1fr 1fr; margin-top: 50px; }.chain-toggle { border-right: 1px solid var(--ink); margin: -1px 0 0 -1px; }.value-chain-shell { margin-left: -12px; margin-right: -12px; }
  .chart-shell, .compare-panel { padding: 12px; margin-left: -12px; margin-right: -12px; }
  .chart { min-height: 360px; overflow-x: auto; }
  .chart svg { min-width: 660px; }
  .mobile-scroll-hint { display: flex; align-items: center; min-height: 44px; margin: 0; padding: 10px 16px; border-bottom: 1px solid #414744; color: #aeb6b2; font-size: 11px; line-height: 1.5; }
  .mobile-scroll-hint::before { content: "↔"; margin-right: 8px; color: var(--green); font-weight: 800; }
  .chart-shell > .mobile-scroll-hint, .compare-panel > .mobile-scroll-hint { margin: 0 -12px; border-bottom-color: var(--line); }
  .compare-panel > .mobile-scroll-hint { border-bottom-color: #414744; }
  .growth-stat { width: auto; grid-template-columns: 1fr 1fr; margin: 12px 0; }
  .crisis-facts { grid-template-columns: 1fr; }
  .crisis-facts article { border-right: 0; border-bottom: 1px solid #414744; }
  .metric-controls { grid-template-columns: 1fr 1fr; }
  .metric-toggle { min-height: 92px; }
  .supply-chart-wrap { min-height: 0; }
  .supply-chart { padding: 18px 4px 8px; }
  .supply-detail { grid-template-columns: 1fr; padding: 22px 18px; }
  .detail-values { grid-template-columns: 1fr; }.detail-note { grid-column: auto; }
  .year-button { min-height: 48px; }
  .gs-rail { padding-left: 56px; }.gs-rail::before { left: 14px; }.gs-rail > div { grid-template-columns: 65px 1fr; }.gs-rail > div::before { left: -49px; }.gs-rail span { grid-column: 2; }
  .process-board { grid-template-columns: 1fr; padding: 14px; }
  .feed-list { grid-template-columns: repeat(2, 1fr); }
  .process-core { min-height: 390px; }
  .output-list { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: 1fr 1fr; }
  .portfolio-grid article { min-height: 170px; padding: 16px; }
  .shifts > div { grid-template-columns: 35px 1fr 40px 1.2fr; gap: 9px; }
  .final-statement br { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}