@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Noto+Sans+Thai:wght@400;500;600;700&family=Noto+Serif+Thai:wght@500;600;700&display=swap");

:root {
  --navy-950: #06111f;
  --navy-900: #0a192b;
  --navy-800: #10253c;
  --ink: #14202c;
  --muted: #5d6973;
  --paper: #f2f0ea;
  --paper-deep: #e8e5dc;
  --line: #d3d0c6;
  --positive: #b56a2f;
  --positive-soft: #f0dcc7;
  --negative: #5f668d;
  --negative-soft: #dcddea;
  --teal: #5ec9bc;
  --white: #fffefa;
  --shadow: 0 20px 60px rgba(6,17,31,.12);
  --container: 1180px;
  --reading: 780px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans Thai", system-ui, sans-serif; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 1000; padding: 10px 14px; background: white; color: var(--navy-950); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid rgba(255,255,255,.1); background: rgba(6,17,31,.96); color: white; backdrop-filter: blur(16px); }
.nav-shell { width: min(var(--container), calc(100% - 48px)); min-height: 72px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 14px; font-weight: 700; }
.brand-mark { color: #79d8cd; font-family: "IBM Plex Mono", monospace; font-size: 25px; letter-spacing: -3px; }
.main-nav { display: flex; align-items: center; gap: 24px; font-size: 13px; }
.main-nav > a, .nav-group-toggle { color: #cbd5df; }
.main-nav a:hover, .main-nav a:focus-visible, .nav-group-toggle:hover, .nav-group-toggle:focus-visible { color: white; }
.nav-group { position: relative; }
.nav-group-toggle { padding: 25px 0; border: 0; background: transparent; cursor: pointer; }
.nav-group-toggle::after { content: "+"; margin-left: 7px; color: var(--teal); }
.submenu { position: absolute; top: calc(100% - 7px); right: -12px; width: 250px; padding: 10px; border: 1px solid rgba(255,255,255,.14); border-radius: 10px; background: #071523; box-shadow: 0 24px 50px rgba(0,0,0,.35); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: .18s ease; }
.submenu a { display: block; padding: 10px 12px; border-radius: 7px; color: #cbd5df; }
.submenu a:hover, .submenu a.active { background: rgba(94,201,188,.12); color: white; }
.nav-group:hover .submenu, .nav-group:focus-within .submenu, .nav-group.is-open .submenu { opacity: 1; visibility: visible; transform: none; }
.nav-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 1px solid rgba(255,255,255,.22); border-radius: 8px; background: transparent; }
.nav-toggle span { display: block; height: 2px; margin: 4px 0; background: white; }

.hero { min-height: 650px; padding: 94px 0 88px; overflow: hidden; color: white; background: radial-gradient(circle at 78% 28%, rgba(94,201,188,.12), transparent 28%), radial-gradient(circle at 19% 88%, rgba(181,106,47,.14), transparent 27%), var(--navy-950); }
.hero-grid { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; display: grid; grid-template-columns: minmax(0,1.1fr) minmax(380px,.9fr); gap: 70px; align-items: center; }
.eyebrow { margin: 0 0 18px; color: #90ded5; font-family: "IBM Plex Mono", monospace; font-size: 12px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; }
.eyebrow.dark { color: #68736e; }
.hero h1 { max-width: 780px; margin: 0; font-family: "Noto Serif Thai", Georgia, serif; font-size: clamp(46px, 6vw, 76px); line-height: 1.06; letter-spacing: -.045em; }
.lede { max-width: 720px; margin: 28px 0 0; color: #c5d0db; font-size: 20px; line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; min-height: 48px; padding: 12px 18px; align-items: center; border: 1px solid rgba(255,255,255,.22); border-radius: 7px; font-weight: 700; }
.button.primary { border-color: var(--teal); background: var(--teal); color: var(--navy-950); }
.button.secondary:hover { background: rgba(255,255,255,.07); }
.status-note { max-width: 680px; margin: 30px 0 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.14); color: #9cabb9; font-size: 13px; }
.status-note strong { color: #d9e1e8; }

.hero-model { margin: 0; padding: 26px; border: 1px solid rgba(255,255,255,.14); border-radius: 14px; background: rgba(255,255,255,.035); box-shadow: 0 30px 90px rgba(0,0,0,.25); }
.model-head { display: flex; justify-content: space-between; gap: 15px; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.12); color: #afbbc6; font: 12px "IBM Plex Mono", monospace; text-transform: uppercase; }
.model-id { color: #70d3c7; }
.evidence { display: grid; grid-template-columns: 44px 1fr; gap: 16px; align-items: center; margin: 22px 0; padding: 20px; border-radius: 9px; }
.evidence.good { color: #efddcb; background: rgba(181,106,47,.18); }
.evidence.poor { color: #e2e3ef; background: rgba(95,102,141,.23); }
.signal { font: 38px "IBM Plex Mono", monospace; }
.evidence b, .evidence small { display: block; }
.evidence small { margin-top: 5px; opacity: .75; line-height: 1.5; }
.model-line { display: flex; align-items: center; gap: 12px; color: #73879a; font: 11px "IBM Plex Mono", monospace; text-transform: uppercase; }
.model-line::before, .model-line::after { content: ""; height: 1px; flex: 1; background: #33465a; }
.model-output { padding: 14px; border: 1px solid rgba(94,201,188,.35); color: #9de2da; text-align: center; font: 12px "IBM Plex Mono", monospace; }
.hero-model figcaption { margin-top: 16px; color: #8999a8; font-size: 12px; }

.section-nav { position: sticky; top: 72px; z-index: 80; border-bottom: 1px solid var(--line); background: rgba(242,240,234,.96); backdrop-filter: blur(12px); }
.section-nav-inner { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; display: flex; gap: 20px; overflow-x: auto; scrollbar-width: thin; }
.section-nav a { flex: 0 0 auto; padding: 17px 0 14px; border-bottom: 3px solid transparent; color: var(--muted); font-size: 13px; font-weight: 600; }
.section-nav a:hover, .section-nav a.active { border-color: var(--positive); color: var(--ink); }
.section-nav a.resource-link { color: #0b6959; font-weight: 800; }
.section-nav a.first-resource { margin-left: 8px; padding-left: 20px; position: relative; }
.section-nav a.first-resource::before { content: ""; position: absolute; left: 0; top: 13px; bottom: 11px; width: 1px; background: var(--line); }

.orientation { padding: 100px 24px; }
.reading-column { width: min(var(--reading), 100%); margin: 0 auto; }
.reading-column h2 { margin: 0 0 30px; font-family: "Noto Serif Thai", Georgia, serif; font-size: clamp(34px, 4.5vw, 52px); line-height: 1.2; letter-spacing: -.025em; }
.reading-column p:not(.eyebrow) { color: #3e4a54; font-family: "Noto Serif Thai", Georgia, serif; font-size: 19px; }

.content-shell { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
.principles { padding: 90px 0; border-block: 1px solid var(--line); background: var(--paper-deep); }
.section-heading { max-width: 760px; margin-bottom: 44px; }
.section-heading h2, .citation-section h2, .next-phase h2 { margin: 0; font-family: "Noto Serif Thai", Georgia, serif; font-size: clamp(34px,4vw,50px); line-height: 1.2; letter-spacing: -.025em; }
.section-heading > p:last-child { color: var(--muted); font-size: 17px; }
.principle-grid { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid #bbb8af; border-left: 1px solid #bbb8af; }
.principle-grid article { min-height: 320px; padding: 32px; border-right: 1px solid #bbb8af; border-bottom: 1px solid #bbb8af; }
.number, .map-index { color: #777f7c; font: 12px "IBM Plex Mono", monospace; }
.principle-grid h3 { margin: 60px 0 12px; font-size: 22px; }
.principle-grid p { color: var(--muted); }
.principle-grid a { display: inline-block; margin-top: 18px; color: #74451f; font-weight: 700; }

.research-map { padding: 110px 0; }
.split-heading { max-width: none; display: grid; grid-template-columns: 1fr .8fr; gap: 80px; align-items: end; }
.split-heading > p { margin: 0; }
.map-list { border-top: 1px solid #aaa89f; }
.map-list > a { display: grid; grid-template-columns: 58px 1fr 160px; gap: 20px; align-items: center; padding: 27px 12px; border-bottom: 1px solid #c9c6bc; transition: background .18s ease, padding .18s ease; }
.map-list > a:hover { padding-inline: 20px; background: rgba(255,255,255,.46); }
.map-list b, .map-list small { display: block; }
.map-list b { font: 600 21px "Noto Serif Thai", Georgia, serif; }
.map-list small { margin-top: 5px; color: var(--muted); font-size: 14px; }
.map-list i { color: #69736f; font: normal 11px "IBM Plex Mono", monospace; text-align: right; text-transform: uppercase; }

.citation-section { padding: 95px 0; background: #dedbd2; }
.citation-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 80px; align-items: start; }
.citation-grid > div > p:last-child { color: var(--muted); font-size: 17px; }
.citation-card { padding: 30px; border-left: 4px solid var(--positive); background: var(--white); box-shadow: var(--shadow); }
.citation-label { color: #74451f; font: 11px "IBM Plex Mono", monospace; letter-spacing: .08em; text-transform: uppercase; }
.citation-card p { font-family: "Noto Serif Thai", Georgia, serif; }
.citation-actions { display: flex; gap: 20px; padding-top: 18px; border-top: 1px solid #dedbd3; }
.citation-actions a, .citation-actions button { padding: 0; border: 0; background: none; color: #74451f; font-weight: 700; cursor: pointer; }
.copy-status { min-height: 1.5em; margin-bottom: 0; color: #60706b; font: 12px "Noto Sans Thai", sans-serif !important; }

.article-hero { padding: 76px 0 62px; color: white; background: radial-gradient(circle at 82% 20%, rgba(94,201,188,.12), transparent 28%), var(--navy-950); }
.article-shell { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
.breadcrumbs { margin-bottom: 35px; color: #8fa1b1; font: 12px "IBM Plex Mono", monospace; }
.breadcrumbs a { color: #a9dcd6; }
.article-hero h1 { max-width: 900px; margin: 0; font: 600 clamp(42px,6vw,68px)/1.08 "Noto Serif Thai", Georgia, serif; letter-spacing: -.04em; }
.article-hero .lede { max-width: 820px; }
.article-layout { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; display: grid; grid-template-columns: 220px minmax(0,780px); gap: 76px; justify-content: center; align-items: start; padding: 80px 0 110px; }
.article-toc { position: sticky; top: 154px; padding-top: 4px; }
.article-toc b { display: block; margin-bottom: 12px; color: #707a76; font: 11px "IBM Plex Mono", monospace; letter-spacing: .08em; text-transform: uppercase; }
.article-toc a { display: block; padding: 7px 0; color: var(--muted); font-size: 13px; }
.article-toc a:hover { color: #74451f; }
.article-body { min-width: 0; }
.article-body h2 { margin: 74px 0 22px; font: 600 clamp(31px,4vw,43px)/1.18 "Noto Serif Thai", Georgia, serif; letter-spacing: -.025em; }
.article-body h2:first-child { margin-top: 0; }
.article-body h3 { margin: 42px 0 14px; font-size: 21px; }
.article-body p, .article-body li { color: #394650; font-family: "Noto Serif Thai", Georgia, serif; font-size: 18px; }
.article-body li { margin: 10px 0; }
.article-body .lead { color: var(--ink); font-size: 23px; line-height: 1.55; }
.insight { margin: 38px 0; padding: 26px 28px; border-left: 4px solid var(--positive); background: var(--paper-deep); }
.insight b { display: block; margin-bottom: 8px; color: #74451f; font: 11px "IBM Plex Mono", monospace; letter-spacing: .08em; text-transform: uppercase; }
.insight p { margin: 0; color: var(--ink); }
.scope-note { margin: 38px 0; padding: 24px 28px; border: 1px solid var(--line); background: rgba(255,255,255,.45); }
.scope-note strong { color: #5f668d; }
.research-figure { margin: 48px 0; }
.research-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); background: white; }
.research-figure figcaption { margin-top: 12px; color: var(--muted); font-size: 13px; }
.path-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; margin: 34px 0; padding: 1px; background: var(--line); }
.path-grid article { padding: 24px; background: rgba(255,255,255,.55); }
.path-grid h3 { margin: 0 0 8px; }
.path-grid p { margin: 0; font: 15px/1.6 "Noto Sans Thai", sans-serif; }
.article-next { margin-top: 80px; padding-top: 28px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 24px; }
.article-next a { color: #74451f; font-weight: 700; }
.parallel-diagram { margin: 44px 0; padding: 30px; border: 1px solid var(--line); background: #e5e2d9; }
.parallel-source { padding: 18px; border: 1px solid #b8b5ab; background: var(--white); text-align: center; font-weight: 700; }
.partition-arrow { padding: 14px 0; color: #68736e; font: 12px "IBM Plex Mono", monospace; text-align: center; text-transform: uppercase; }
.node-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; }
.compute-node { min-height: 130px; padding: 16px; border-top: 4px solid var(--teal); background: var(--navy-900); color: white; }
.compute-node b, .compute-node small { display: block; }
.compute-node small { margin-top: 9px; color: #aebbc7; line-height: 1.45; }
.merge-result { margin-top: 10px; padding: 15px; border: 1px dashed #9b988f; color: #53615d; text-align: center; font: 12px "IBM Plex Mono", monospace; }
.equation-callout { margin: 38px 0; padding: 28px; color: white; background: var(--navy-900); }
.equation-callout code { display: block; margin-bottom: 12px; color: #8edfd5; font: 18px "IBM Plex Mono", monospace; }
.equation-callout p { margin: 0; color: #c4d0db; font-family: "Noto Sans Thai", sans-serif; font-size: 15px; }
.sequence-demo { display:flex; flex-wrap:wrap; gap:8px; align-items:center; margin:30px 0; padding:24px; border:1px solid var(--line); background:#e6e2d8; }
.sequence-demo code { min-width:38px; padding:8px; color:white; background:var(--navy-900); text-align:center; font:16px "IBM Plex Mono",monospace; }
.sequence-demo i { color:#7b4a25; font-style:normal; font-weight:800; }
.matrix-demo { margin:38px 0; padding:28px; border:1px solid var(--line); background:rgba(255,255,255,.6); }
.matrix-caption { display:flex; justify-content:space-between; gap:20px; margin-bottom:18px; }
.matrix-caption span,.matrix-demo small { color:var(--muted); font-size:12px; }
.matrix-demo table,.complexity-table { width:100%; border-collapse:collapse; }
.matrix-demo th,.matrix-demo td,.complexity-table th,.complexity-table td { padding:12px; border:1px solid #cbc7bd; text-align:center; }
.matrix-demo th,.complexity-table th { color:#55615e; background:#e5e2d9; font:11px "IBM Plex Mono",monospace; text-transform:uppercase; }
.matrix-demo td { font:14px "IBM Plex Mono",monospace; }
.matrix-demo td.zero { color:#999; background:#eceae4; }.matrix-demo td.high { color:white; background:#81502d; }
.matrix-demo small { display:block; margin-top:14px; }
.coin-architecture { display:grid; grid-template-columns:1fr auto 1fr auto 1fr auto 1fr; gap:10px; align-items:stretch; margin:38px 0; padding:28px; border:1px solid var(--line); background:#dedbd2; }
.arch-node { min-height:138px; padding:17px; border-top:4px solid #6e778e; background:white; }.arch-node.data{border-color:var(--teal)}.arch-node.split{border-color:#a45e32}
.arch-node span,.architecture-layers span,.compare-grid span { color:#7b4a25; font:10px "IBM Plex Mono",monospace; letter-spacing:.06em; }.arch-node b,.arch-node small { display:block; }.arch-node b{margin-top:24px}.arch-node small{margin-top:7px;color:var(--muted);line-height:1.4}.arch-arrow{align-self:center;color:#8b8378;font-weight:800}
.arch-return { grid-column:4/8; padding:7px; border-right:1px dashed #9b958a; color:#7b4a25; font:10px "IBM Plex Mono",monospace; text-align:right; }
.arch-model { grid-column:2/7; padding:22px; color:white; background:var(--navy-900); text-align:center; }.arch-model span,.arch-model b,.arch-model small{display:block}.arch-model span{color:#77d5ca;font:10px "IBM Plex Mono",monospace}.arch-model b{margin-top:8px;font-size:20px}.arch-model small{margin-top:5px;color:#b4c0ca}
.arch-loop { grid-column:2/7; color:#68736e; font:11px "IBM Plex Mono",monospace; text-align:center; }
.architecture-layers,.compare-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:1px; margin:34px 0; padding:1px; background:var(--line); }.architecture-layers article,.compare-grid article{padding:24px;background:rgba(255,255,255,.58)}.architecture-layers h3,.compare-grid h3{margin:14px 0 8px}.architecture-layers p,.compare-grid p{margin:0;font:15px/1.65 "Noto Sans Thai",sans-serif}.compare-grid article.positive{border-top:4px solid var(--teal)}.compare-grid article.negative{border-top:4px solid #a45e32}
.algorithm-steps { padding:0; list-style:none; counter-reset:coin-step; }.algorithm-steps li{display:grid;grid-template-columns:200px 1fr;gap:24px;margin:0;padding:18px 4px;border-top:1px solid var(--line);counter-increment:coin-step}.algorithm-steps li b:before{content:counter(coin-step,decimal-leading-zero) "  ";color:#7b4a25;font:11px "IBM Plex Mono",monospace}.algorithm-steps li p{margin:0;font-size:16px}
.sampling-trace { display:grid; grid-template-columns:repeat(5,1fr); gap:8px; margin:34px 0; }.sampling-trace div{min-height:120px;padding:16px;border:1px solid var(--line);background:rgba(255,255,255,.55)}.sampling-trace span,.sampling-trace code{display:block}.sampling-trace span{color:var(--muted);font:10px "IBM Plex Mono",monospace;text-transform:uppercase}.sampling-trace code{margin-top:28px;color:#172938;font:13px "IBM Plex Mono",monospace}
.invariant-list { display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:34px 0}.invariant-list article{min-height:150px;padding:18px;border-top:4px solid #66718c;background:#e5e2d9}.invariant-list b{font-size:14px}.invariant-list p{margin:18px 0 0;font:14px/1.5 "Noto Sans Thai",sans-serif}.complexity-table{margin:30px 0}.complexity-table td{text-align:left;font-size:14px}.complexity-table td:nth-child(2),.complexity-table td:nth-child(3){white-space:nowrap;font-family:"IBM Plex Mono",monospace}

.next-phase { padding: 90px 0; background: var(--navy-900); color: white; }
.next-inner { display: grid; grid-template-columns: 1.2fr .8fr; gap: 80px; align-items: end; }
.next-inner > p { margin: 0; color: #abb9c6; font-size: 17px; }
.site-footer { padding: 65px 0 24px; background: #050d17; color: #aab5c0; }
.footer-grid { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; display: grid; grid-template-columns: 1.4fr .7fr .7fr; gap: 70px; }
.footer-grid > div:first-child p { max-width: 480px; }
.footer-grid h2 { margin: 0 0 14px; color: white; font-size: 14px; }
.footer-grid > div > a:not(.brand) { display: block; padding: 4px 0; }
.footer-brand { color: white; }
.footer-bottom { width: min(var(--container), calc(100% - 48px)); margin: 45px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); font-size: 12px; }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .main-nav { display: none; position: absolute; top: 72px; left: 0; right: 0; max-height: calc(100vh - 72px); padding: 18px 24px 28px; overflow-y: auto; align-items: stretch; flex-direction: column; gap: 0; background: #06111f; border-top: 1px solid rgba(255,255,255,.1); }
  .main-nav.is-open { display: flex; }
  .main-nav > a, .nav-group-toggle { display: block; width: 100%; padding: 13px 0; text-align: left; }
  .nav-group { width: 100%; }
  .submenu { display: none; position: static; width: 100%; padding: 4px 0 10px 14px; border: 0; box-shadow: none; opacity: 1; visibility: visible; transform: none; background: transparent; }
  .nav-group:hover .submenu, .nav-group:focus-within .submenu { display: none; }
  .nav-group.is-open .submenu { display: block; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-model { max-width: 660px; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article { min-height: 240px; }
  .principle-grid h3 { margin-top: 32px; }
  .split-heading, .citation-grid, .next-inner { grid-template-columns: 1fr; gap: 34px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-layout { grid-template-columns: 1fr; gap: 28px; }
  .article-toc { position: static; display: flex; gap: 16px; overflow-x: auto; }
  .article-toc b { display: none; }
  .article-toc a { flex: 0 0 auto; }
  .coin-architecture { grid-template-columns:1fr; }.arch-arrow{display:none}.arch-return,.arch-model,.arch-loop{grid-column:auto}.arch-return{text-align:center;border:0}.architecture-layers,.compare-grid{grid-template-columns:1fr}.sampling-trace{grid-template-columns:repeat(2,1fr)}.invariant-list{grid-template-columns:repeat(2,1fr)}
}

@media (max-width: 620px) {
  .nav-shell, .hero-grid, .content-shell, .section-nav-inner, .footer-grid, .footer-bottom { width: min(100% - 28px, var(--container)); }
  .hero { min-height: 0; padding: 70px 0 64px; }
  .hero h1 { font-size: 43px; }
  .lede { font-size: 18px; }
  .hero-model { padding: 18px; }
  .evidence { grid-template-columns: 34px 1fr; padding: 16px; }
  .section-nav { top: 72px; }
  .orientation { padding: 72px 14px; }
  .principles, .research-map, .citation-section, .next-phase { padding-block: 70px; }
  .map-list > a { grid-template-columns: 34px 1fr; }
  .map-list i { grid-column: 2; text-align: left; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .article-shell, .article-layout { width: min(100% - 28px, var(--container)); }
  .article-hero { padding: 58px 0 48px; }
  .article-body p, .article-body li { font-size: 17px; }
  .path-grid { grid-template-columns: 1fr; }
  .node-grid { grid-template-columns: repeat(2,1fr); }
  .article-next { flex-direction: column; }
  .node-grid { grid-template-columns: 1fr; }
  .algorithm-steps li{grid-template-columns:1fr;gap:8px}.sampling-trace,.invariant-list{grid-template-columns:1fr}.matrix-demo{padding:16px;overflow-x:auto}.complexity-table{display:block;overflow-x:auto}.matrix-caption{flex-direction:column}
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}
/* Multi-objective and multimodal COIN capability dossier */
.capability-compare{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:34px 0}.capability-compare article{min-height:250px;padding:28px;border-top:5px solid var(--teal);background:#e6e3da}.capability-compare article+article{border-color:#8c627d}.capability-compare span{color:#74451f;font:10px "IBM Plex Mono",monospace;letter-spacing:.08em}.capability-compare h3{margin:28px 0 10px}.capability-compare p{font-size:16px}.capability-compare code{display:block;margin-top:26px;color:#4e5f5a;font:12px "IBM Plex Mono",monospace}
.pareto-demo{position:relative;height:390px;margin:40px 0;padding:34px 45px 55px 65px;border:1px solid var(--line);background:linear-gradient(#e7e4db 1px,transparent 1px),linear-gradient(90deg,#e7e4db 1px,transparent 1px),rgba(255,255,255,.55);background-size:38px 38px}.pareto-points{position:relative;width:100%;height:270px;border-left:2px solid #64716c;border-bottom:2px solid #64716c}.pareto-points i{position:absolute;left:var(--x);bottom:var(--y);width:13px;height:13px;border-radius:50%;background:#87918d;transform:translate(-50%,50%)}.pareto-points i.front{width:17px;height:17px;border:4px solid #d8eee9;background:#147e72;box-shadow:0 0 0 2px #147e72}.pareto-axis{position:absolute;color:#69736f;font:11px "IBM Plex Mono",monospace}.pareto-axis.y{left:12px;top:50%;transform:rotate(-90deg)}.pareto-axis.x{right:28px;bottom:42px}.pareto-demo>p{margin:17px 0 0;color:var(--muted);font:12px "Noto Sans Thai",sans-serif}
.mo-architecture{display:grid;grid-template-columns:repeat(9,auto);gap:8px;align-items:center;margin:38px 0;padding:26px;border:1px solid var(--line);background:#dfdcd3;overflow-x:auto}.mo-architecture>div:not(.wide){min-width:128px;min-height:128px;padding:16px;background:white}.mo-architecture span,.mode-diagram span,.mixture-model span{display:block;color:#7b4a25;font:10px "IBM Plex Mono",monospace}.mo-architecture b,.mo-architecture small{display:block}.mo-architecture b{margin-top:25px}.mo-architecture small{margin-top:8px;color:var(--muted);line-height:1.4}.mo-architecture em{color:#8a8479;font-style:normal}.mo-architecture .wide{grid-column:2/9;padding:22px;color:white;background:var(--navy-900);text-align:center}.mo-architecture .wide b{margin-top:8px}.mo-architecture .wide small{color:#b8c4cf}
.mode-diagram{display:grid;grid-template-columns:1fr .8fr 1fr;gap:10px;align-items:center;margin:34px 0}.mode-diagram article{min-height:170px;padding:24px;border-top:5px solid var(--teal);background:#e5e2d9}.mode-diagram article:nth-child(2){border-color:#9c633c;background:var(--navy-900);color:white}.mode-diagram article:nth-child(3){border-color:#8c627d}.mode-diagram b,.mode-diagram small{display:block}.mode-diagram b{margin-top:35px;font:15px "IBM Plex Mono",monospace}.mode-diagram small{margin-top:10px;color:var(--muted)}.mode-diagram article:nth-child(2) small{color:#afbdc8}
.mixture-model{margin:38px 0;padding:28px;border:1px solid var(--line);background:#e1ded5}.mixture-source,.mixture-output{padding:20px;background:white;text-align:center}.mixture-source b,.mixture-source small{display:block}.mixture-source small{margin-top:6px;color:var(--muted)}.mixture-arrow{padding:12px;color:#66726d;font:10px "IBM Plex Mono",monospace;text-align:center;text-transform:uppercase}.mixture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.mixture-grid article{min-height:130px;padding:18px;color:white;background:var(--navy-900);text-align:center}.mixture-grid b{display:block;margin-top:17px;font:26px "IBM Plex Mono",monospace}.mixture-grid small{display:block;margin-top:8px;color:#b4c1cc}.mixture-output{border-bottom:4px solid var(--teal);font-weight:800}.capability-table td:nth-child(2),.capability-table td:nth-child(3){white-space:normal;font-family:"Noto Sans Thai",sans-serif}
@media(max-width:900px){.capability-compare,.mode-diagram{grid-template-columns:1fr}.mo-architecture{grid-template-columns:1fr;overflow:visible}.mo-architecture em{display:none}.mo-architecture .wide{grid-column:auto}.mixture-grid{grid-template-columns:1fr}}



/* COIN publication lineage */
.publication-intro{padding-top:clamp(42px,6vw,78px)}
.publication-key{display:flex;gap:18px;flex-wrap:wrap;margin:24px 0 0;color:var(--muted);font-size:.88rem;font-weight:750}
.publication-key span{display:inline-flex;gap:8px;align-items:center}
.publication-key i{width:11px;height:11px;border-radius:50%;display:inline-block;background:#176b55}
.publication-key i.lineage{background:#b87920}.publication-key i.application{background:#6e62a8}
.publication-group{padding-top:clamp(55px,8vw,100px)}
.publication-group>h2{max-width:850px;margin:5px 0 32px;font-size:clamp(2rem,4vw,3.6rem);line-height:1.02}
.publication-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.publication-card{position:relative;background:var(--paper,#fffdf8);border:1px solid var(--line,#ddd3c4);border-radius:20px;padding:28px;box-shadow:0 14px 45px rgba(26,38,31,.055);overflow:hidden}
.publication-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:#176b55}
.publication-card.lineage:before{background:#b87920}.publication-card.application:before{background:#6e62a8}
.publication-card header>span{color:#176b55;text-transform:uppercase;letter-spacing:.11em;font-size:.72rem;font-weight:900}
.publication-card.lineage header>span{color:#915d13}.publication-card.application header>span{color:#5a4c92}
.publication-card h3{font-size:clamp(1.35rem,2.2vw,1.9rem);line-height:1.16;margin:12px 0}
.publication-card header p{font-size:.86rem;color:var(--muted);border-bottom:1px solid var(--line,#ddd3c4);padding-bottom:18px}
.publication-card h4{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;margin:20px 0 7px;color:var(--muted)}
.publication-card>a{display:inline-block;margin-top:12px;font-weight:850;color:#176b55}
.publication-end{margin-top:clamp(60px,9vw,120px);margin-bottom:90px;padding:40px;border-radius:22px;background:#17372d;color:#fff}
.publication-end a{color:#c9ee8d;font-weight:850}
@media(max-width:800px){.publication-list{grid-template-columns:1fr}.publication-card{padding:23px}.publication-key{gap:12px}}

/* Shared COIN identity across research pages. */
body::before{content:"";position:fixed;z-index:1000;top:10px;right:14px;width:86px;height:30px;border:1px solid #ded7ca;border-radius:999px;background:#fff url('../img/coin-logo.jpeg') center/72px auto no-repeat;box-shadow:0 4px 15px rgba(23,34,29,.08);pointer-events:none}
@media(max-width:640px){body::before{position:absolute;width:72px;height:27px;background-size:61px auto}}


/* Shared English/Thai research navigation and Thai reading edition. */
.coin-lang-switch{display:inline-flex;align-items:center;justify-content:center;margin-right:96px;padding:.55rem .85rem;border:1px solid rgba(255,255,255,.24);border-radius:999px;font-weight:800}
.thai-edition{font-family:"Noto Sans Thai","Leelawadee UI",system-ui,sans-serif}
.thai-edition h1,.thai-edition h2,.thai-edition h3{font-family:"Noto Serif Thai","Th Sarabun New",Georgia,serif;line-height:1.18}
.thai-content{max-width:980px;padding-top:3rem;padding-bottom:5rem}
.thai-section{padding:2rem 0;border-bottom:1px solid var(--line,#d9d3c7)}
.thai-section h2{max-width:820px;margin:.25rem 0 1rem;font-size:clamp(1.7rem,3vw,2.7rem)}
.thai-section p:not(.eyebrow){max-width:850px;font-size:1.08rem;line-height:1.9;color:var(--muted,#55605b)}
.thai-actions{margin-top:3rem;padding:2rem;border-radius:24px;background:var(--forest,#123c31);color:#fff}
.thai-actions p{color:rgba(255,255,255,.82)}
@media(max-width:760px){.coin-lang-switch{margin:.6rem 0}.thai-content{padding-inline:1.15rem}.thai-section{padding:1.5rem 0}.thai-actions{padding:1.35rem}}
body::before{display:none!important}
.coin-fixed-logo{position:fixed;z-index:1001;top:10px;right:14px;width:86px;height:30px;display:flex;align-items:center;justify-content:center;border:1px solid #ded7ca;border-radius:999px;background:#fff;box-shadow:0 4px 15px rgba(23,34,29,.08)}
.coin-fixed-logo img{display:block;width:72px;height:24px;object-fit:contain}
.thai-visuals{margin-top:3rem;padding-top:3rem;border-top:2px solid var(--forest,#123c31)}
.thai-visuals>h2{font-size:clamp(1.9rem,3vw,3rem);margin:.3rem 0 .8rem}
.visual-intro{max-width:820px;line-height:1.8;color:var(--muted,#55605b)}
.thai-visual-stack{display:grid;gap:1.5rem;margin-top:1.5rem}
.thai-visual-stack>figure,.thai-visual-stack>table,.thai-visual-stack>.matrix-demo,.thai-visual-stack>.coin-architecture,.thai-visual-stack>.mo-architecture,.thai-visual-stack>.mode-diagram,.thai-visual-stack>.mixture-model{width:100%;max-width:100%;overflow:auto}
@media(max-width:760px){.coin-fixed-logo{top:8px;right:10px;width:76px}.coin-fixed-logo img{width:64px}.thai-visuals{padding-top:2rem}.thai-visual-stack{gap:1rem}}
.thai-original-layout{font-family:"Noto Sans Thai","Leelawadee UI",system-ui,sans-serif}
.thai-translation-guide{padding:3rem 0;background:#f2eee4;border-bottom:1px solid var(--line,#d9d3c7)}
.thai-guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.thai-guide-grid article{padding:1.4rem;border:1px solid var(--line,#d9d3c7);border-radius:20px;background:#fff}
.thai-guide-grid span{font-weight:900;letter-spacing:.1em;color:var(--mint,#2e8f78)}
.thai-guide-grid h2{font-size:1.45rem;margin:.5rem 0 .65rem}
.thai-guide-grid p{margin:0;line-height:1.75;color:var(--muted,#55605b)}
@media(max-width:760px){.thai-translation-guide{padding:2rem 0}.thai-guide-grid{grid-template-columns:1fr}.thai-guide-grid article{padding:1.15rem}}