/* ngobabinh.com. Tokens and laws: DESIGN.md. Night teal and paper alternate; one glow accent. */
:root {
  --night: #0C3A40;
  --night-2: #0A2F34;
  --deep: #0F4A50;
  --glow: #8FDCC8;
  --on-dark: #E6F2EE;
  --on-dark-2: #A9CDC4;
  --paper: #FAF8F3;
  --paper-2: #EEF4F0;
  --rule: #D5E0DB;
  --ink: #13232A;
  --ink-2: #3A4E55;
  --muted: #55686D;
  --accent: #1D6F75;
  --mark: #3E9C74;
  --serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --sans: "Inter Tight", "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section: clamp(5rem, 11vw, 9.5rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0E1A1D;
    --paper-2: #13242A;
    --rule: #24383D;
    --ink: #EEF4F2;
    --ink-2: #C7D6D2;
    --muted: #9FB5B0;
    --accent: #8FDCC8;
    --mark: #8FDCC8;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-rendering: optimizeLegibility; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 clamp(1.05rem, 0.98rem + 0.25vw, 1.15rem) / 1.65 var(--serif); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 0.2em; text-decoration-thickness: 1px; transition: text-decoration-color 200ms var(--ease), color 200ms var(--ease); }
a:hover { text-decoration-color: currentColor; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.hero a:focus-visible, .site-head[data-tone="dark"] a:focus-visible { outline-color: var(--glow); }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-weight: 500; margin: 0; letter-spacing: -0.025em; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; background: var(--night); color: var(--on-dark); padding: 0.6rem 1rem; font-family: var(--sans); z-index: 30; }
.skip:focus { left: 1rem; top: 1rem; }
.wrap { max-width: 82rem; margin: 0 auto; padding: 0 var(--gutter); }
section[id], footer[id] { scroll-margin-top: 4.5rem; }

/* Labels: micro-caps with a two-digit index */
.label { display: flex; align-items: baseline; gap: 0.9rem; margin: 0 0 1.6rem; font: 600 0.725rem/1.4 var(--sans); letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.label .idx { font: 300 1.05rem/1 var(--serif); letter-spacing: 0; color: var(--accent); }
.label.on-dark { color: var(--on-dark-2); }
.label.on-dark .idx { color: var(--glow); }

/* Header: light type over the night hero, paper once past it */
.site-head { position: fixed; inset: 0 0 auto 0; z-index: 20; transition: background 400ms var(--ease), color 400ms var(--ease), border-color 400ms var(--ease); border-bottom: 1px solid var(--rule); color: var(--ink); background: var(--paper); }
.site-head[data-tone="dark"] { background: var(--night); color: var(--on-dark); border-bottom-color: rgba(169, 205, 196, 0.22); backdrop-filter: none; -webkit-backdrop-filter: none; }
.site-head .wrap { display: flex; align-items: center; min-height: 4.25rem; gap: 1.5rem; }
.mark { display: inline-flex; align-items: center; gap: 0.7rem; font: 600 0.75rem/1 var(--sans); letter-spacing: 0.18em; text-transform: uppercase; text-decoration: none; }
.mono { display: inline-grid; place-items: center; width: 2rem; height: 2rem; border: 1px solid currentColor; border-radius: 50%; font: 400 0.8rem/1 var(--serif); letter-spacing: 0.04em; }
.sections { display: flex; gap: 1.8rem; margin-left: auto; font: 600 0.85rem/1 var(--sans); }
.sections a, .lang a { text-decoration: none; opacity: 0.78; padding: 0.45rem 0; border-bottom: 1px solid transparent; }
.sections a:hover, .lang a:hover { opacity: 1; }
.sections a[aria-current="true"] { opacity: 1; border-bottom-color: currentColor; }
.lang { display: flex; gap: 0.9rem; font: 600 0.75rem/1 var(--sans); letter-spacing: 0.12em; }
.lang a[aria-current="true"] { opacity: 1; border-bottom-color: currentColor; }

/* Hero: evidence-led founder cover. The only hero motion is a slow genomic signal at the right. */
.hero { position: relative; min-height: min(92svh, 52rem); display: flex; align-items: center; background: radial-gradient(120% 90% at 78% 30%, var(--deep) 0%, var(--night) 55%, var(--night-2) 100%); color: var(--on-dark); overflow: hidden; padding: 6.75rem 0 2.8rem; }
.hero::before { content: ""; position: absolute; inset: 0 0 0 auto; width: 52%; background: linear-gradient(90deg, transparent, rgba(143,220,200,0.025)); pointer-events: none; }
.helix { position: absolute; inset: 0 0 0 auto; width: 51%; height: 100%; opacity: 0.48; -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.75) 20%, #000 100%); mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.75) 20%, #000 100%); pointer-events: none; }
.hero-grid { position: relative; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(1.5rem, 3vw, 3rem); align-items: center; width: 100%; }
.hero-text { grid-column: 1 / span 7; }
.hero h1 { max-width: 8.6ch; font: 700 clamp(3.6rem, 2.4rem + 3.5vw, 5.5rem)/0.9 var(--sans); letter-spacing: -0.058em; color: var(--on-dark); }
.hero h1 span { display: block; }
.alt-name { font: 600 0.88rem/1.4 var(--sans); letter-spacing: 0.08em; color: var(--on-dark-2); margin: 1rem 0 1.7rem; }
.hero-lead { max-width: 40rem; font: 500 clamp(1.08rem, 0.97rem + 0.45vw, 1.3rem)/1.48 var(--sans); color: var(--on-dark); margin: 0 0 1.65rem; }
.hero-proof { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0 0 1.7rem; padding: 0.9rem 0; border-top: 1px solid rgba(169,205,196,0.35); border-bottom: 1px solid rgba(169,205,196,0.35); }
.hero-proof li { min-width: 0; padding: 0 0.8rem; }
.hero-proof li:first-child { padding-left: 0; }
.hero-proof li + li { border-left: 1px solid rgba(169,205,196,0.3); }
.hero-proof strong { display: block; font: 700 clamp(1.6rem, 1.2rem + 1vw, 2.2rem)/1 var(--sans); letter-spacing: -0.04em; color: var(--glow); white-space: nowrap; }
.hero-proof span { display: block; margin-top: 0.4rem; font: 600 0.72rem/1.3 var(--sans); color: var(--on-dark-2); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0; }
.btn { display: inline-flex; align-items: center; font: 700 0.9rem/1 var(--sans); padding: 1rem 1.5rem; border-radius: 0.55rem; text-decoration: none; background: var(--glow); color: var(--night); border: 1px solid var(--glow); transition: transform 300ms var(--ease), background 300ms var(--ease); }
.btn:hover { transform: translateY(-2px); }
.btn.ghost { background: transparent; color: var(--on-dark); border-color: rgba(230,242,238,0.42); }
.hero-identity { grid-column: 8 / span 5; margin-left: 1rem; }
.hero-portrait { position: relative; margin: 0 0 1rem; padding: 0 0.8rem 0.8rem 0; }
.hero-portrait::before { content: ""; position: absolute; inset: 0 0.05rem 0.05rem 0.8rem; border: 1px solid rgba(143,220,200,0.78); transform: translate(0.75rem, -0.75rem); }
.hero-portrait .frame { position: relative; aspect-ratio: 1 / 1; overflow: hidden; background: #fff; }
.hero-portrait picture { display: block; height: 100%; }
.hero-portrait img { width: 100%; height: 100%; object-fit: cover; object-position: center center; }
.hero-roles { list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(169,205,196,0.42); }
.hero-roles li { display: grid; grid-template-columns: minmax(7.2rem, 0.82fr) minmax(0, 1.35fr); gap: 0.8rem; padding: 0.65rem 0; border-bottom: 1px solid rgba(169,205,196,0.3); font: 500 0.78rem/1.3 var(--sans); color: var(--on-dark-2); }
.hero-roles strong { font-weight: 600; color: var(--on-dark); }

/* Figures on night */
.figures { background: var(--night-2); color: var(--on-dark); padding: clamp(4rem, 8vw, 6.5rem) 0; }
.fig-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1.6fr repeat(4, minmax(0, 1fr)); border-top: 1px solid rgba(169, 205, 196, 0.25); }
.fig-list li { padding: 2rem 1.4rem 0 0; }
.fig-list li + li { padding-left: 1.4rem; border-left: 1px solid rgba(169, 205, 196, 0.25); }
.fig-list .n { display: block; font: 700 clamp(2.6rem, 1.6rem + 3.2vw, 4.6rem)/1 var(--sans); letter-spacing: -0.055em; color: var(--on-dark); }
.fig-list .big .n { color: var(--glow); }
.fig-list .l { display: block; margin-top: 0.8rem; font: 600 0.85rem/1.4 var(--sans); color: var(--on-dark-2); max-width: 16ch; }

/* Profile */
.profile { padding: var(--section) 0; }
.profile-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(1.5rem, 3vw, 3rem); align-items: start; }
.profile-text { grid-column: 1 / span 7; }
.pull { font: 300 clamp(1.9rem, 1.2rem + 2.4vw, 3.2rem)/1.15 var(--serif); letter-spacing: -0.02em; margin: 0 0 2.4rem; }
.profile-text p { color: var(--ink-2); max-width: 38rem; margin: 0 0 1.2rem; }
.profile-photo { grid-column: 9 / span 4; margin: 5.5rem 0 0; }
.profile-photo img { border-radius: 1rem; aspect-ratio: 4 / 5; object-fit: cover; }
figcaption { font: 500 0.78rem/1.45 var(--sans); color: var(--muted); margin-top: 0.8rem; }

/* Career strand */
.career { padding: var(--section) 0; background: var(--paper-2); }
.career-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(1.5rem, 3vw, 3rem); }
.career-side { grid-column: 1 / span 4; position: sticky; top: 6.5rem; align-self: start; }
.career-side h2 { font: 300 clamp(2.2rem, 1.5rem + 2.4vw, 3.6rem)/1.05 var(--serif); margin-bottom: 1rem; }
.intro { color: var(--muted); font-size: 1rem; margin: 0; }
.now-label { margin: 2.6rem 0 0.65rem; font: 700 0.72rem/1.4 var(--sans); letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); }
.now-date { margin: 0 0 0.65rem; font: 700 0.75rem/1.4 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.now { margin: 0; font: 400 clamp(1.4rem, 1.05rem + 1.2vw, 2.2rem)/1.18 var(--serif); color: var(--accent); min-height: 5.9em; text-wrap: balance; transition: opacity 400ms var(--ease); }
.strand-wrap { grid-column: 6 / span 7; position: relative; }
.strand { position: absolute; left: 0.44rem; top: 2.4rem; bottom: 2.6rem; width: 2px; background: var(--rule); }
.strand span { display: block; width: 100%; height: calc(var(--p, 1) * 100%); background: var(--accent); }
.strand-list { list-style: none; margin: 0; padding: 0 0 0 3rem; }
.node { position: relative; padding: 1.6rem 0 2.6rem; }
.node .dot { position: absolute; left: -3rem; top: 2rem; width: 0.95rem; height: 0.95rem; border-radius: 50%; background: var(--paper-2); border: 2px solid var(--rule); transition: background 500ms var(--ease), border-color 500ms var(--ease), box-shadow 500ms var(--ease); }
.node.lit .dot { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent) 18%, transparent); }
.node .when { font: 600 0.75rem/1.4 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin: 0 0 0.6rem; }
.node h3 { font: 400 clamp(1.4rem, 1.1rem + 1vw, 2rem)/1.2 var(--serif); }
.node .role { margin: 0.4rem 0 0; color: var(--muted); font: 500 0.95rem/1.45 var(--sans); }
.node .contribution { display: none; margin: 0.8rem 0 0; max-width: 36rem; color: var(--ink-2); font: 400 1rem/1.55 var(--serif); }

/* Full-bleed photograph band */
.band { position: relative; background: var(--night); color: var(--on-dark); }
.band figure { margin: 0; position: relative; }
.band-img { height: clamp(22rem, 62vw, 46rem); overflow: hidden; }
.band-img picture { display: block; height: 118%; will-change: transform; }
.band-img img { width: 100%; height: 100%; object-fit: cover; }
.band figcaption { position: absolute; left: 0; right: 0; bottom: 0; margin: 0 auto; padding-bottom: 2rem; padding-top: 6rem; color: var(--on-dark); font: 500 0.9rem/1.5 var(--sans); background: none; }
.band figure::after { content: ""; position: absolute; inset: auto 0 0 0; height: 55%; background: linear-gradient(transparent, rgba(6, 30, 33, 0.88)); pointer-events: none; }
.band figcaption { z-index: 1; }
.band figcaption .label { margin-bottom: 0.6rem; }

/* Family archive: approved photographs, arranged as an editorial contact sheet. */
.archive { padding: var(--section) 0; background: var(--paper-2); overflow: hidden; }
.archive-head { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(1.5rem, 3vw, 3rem); margin-bottom: clamp(2.5rem, 6vw, 5rem); }
.archive-head .label { grid-column: 1 / -1; }
.archive-head h2 { grid-column: 1 / span 6; font: 300 clamp(2.2rem, 1.5rem + 2.4vw, 3.6rem)/1.05 var(--serif); max-width: 10ch; }
.archive-head .intro { grid-column: 8 / span 5; align-self: end; max-width: 34rem; }
.archive-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(2rem, 5vw, 5rem) clamp(1.2rem, 3vw, 3rem); align-items: start; }
.archive-card { margin: 0; }
.archive-card picture { display: block; overflow: hidden; background: var(--paper); }
.archive-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 900ms var(--ease); }
.archive-card:hover img { transform: scale(1.015); }
.archive-card--signing { grid-column: 1 / span 6; }
.archive-card--signing picture { aspect-ratio: 4 / 3; }
.archive-card--award { grid-column: 7 / span 6; margin-top: clamp(3rem, 6vw, 6rem); }
.archive-card--award picture { aspect-ratio: 3 / 2; }
.archive-card--esmo { grid-column: 1 / -1; }
.archive-card--esmo picture { aspect-ratio: 2.16 / 1; }
.archive-card--gentis-2019 { grid-column: 1 / span 8; }
.archive-card--gentis-2019 picture { aspect-ratio: 16 / 9; }
.archive-card--gentis-2022 { grid-column: 9 / span 4; margin-top: clamp(2rem, 5vw, 5rem); }
.archive-card--gentis-2022 picture { aspect-ratio: 5 / 4; }
.archive-card--group { grid-column: 3 / span 8; }
.archive-card--group picture { aspect-ratio: 3 / 2; }
.archive-video { grid-column: 2 / span 10; margin: clamp(1rem, 3vw, 3rem) 0 0; }
.archive-video video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--night); }
.archive-video figcaption { display: grid; grid-template-columns: minmax(12rem, 0.8fr) minmax(0, 1.2fr); gap: 1rem 2rem; align-items: start; }
.archive-video figcaption strong { color: var(--ink); font: 500 1rem/1.45 var(--serif); }
.archive-video figcaption span { color: var(--muted); }

/* Achievements */
.ach { padding: var(--section) 0; }
.ach-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(2rem, 5vw, 5rem); }
.ach-list li { display: grid; grid-template-columns: 3.4rem minmax(0, 1fr); padding: 1.8rem 0; border-top: 1px solid var(--rule); }
.ach-list .k { font: 300 1.6rem/1 var(--serif); color: var(--accent); }
.ach-list p { margin: 0; font: 400 clamp(1.1rem, 1rem + 0.4vw, 1.35rem)/1.45 var(--serif); }

/* Research */
.research { padding: var(--section) 0; background: var(--paper-2); }
.research-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(1.5rem, 3vw, 3rem); }
.research-grid > div:first-child { grid-column: 1 / span 4; }
.research-grid h2 { font: 300 clamp(2.2rem, 1.5rem + 2.4vw, 3.6rem)/1.05 var(--serif); margin-bottom: 1.2rem; }
.papers { grid-column: 6 / span 7; display: grid; gap: 1rem; }
.paper { background: var(--paper); border-radius: 1rem; transition: box-shadow 400ms var(--ease), transform 400ms var(--ease); }
.paper:hover { box-shadow: 0 24px 50px -30px rgba(12, 58, 64, 0.45); transform: translateY(-2px); }
.paper summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 4rem minmax(0, 1fr); gap: 0.3rem 1rem; padding: 1.6rem 1.8rem; }
.paper summary::-webkit-details-marker { display: none; }
.paper .yr { grid-row: span 3; font: 300 1.6rem/1 var(--serif); color: var(--accent); }
.paper .t { font: 400 1.18rem/1.35 var(--serif); }
.paper .j { font: 500 0.85rem/1.4 var(--sans); color: var(--muted); }
.paper .more { font: 600 0.72rem/1.4 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-top: 0.4rem; }
.paper .more::after { content: " +"; }
.paper[open] .more::after { content: " \2212"; }
.paper .body { padding: 0 1.8rem 1.8rem 6.8rem; color: var(--ink-2); font-size: 1rem; }
.paper .cite { font: 400 0.85rem/1.55 var(--sans); color: var(--muted); }
.paper .cite .me { color: var(--ink); font-weight: 600; }

/* Sources: oversized index */
.sources { padding: var(--section) 0; }
.sources h2 { font: 300 clamp(2.2rem, 1.5rem + 2.4vw, 3.6rem)/1.05 var(--serif); margin-bottom: 1rem; max-width: 20ch; }
.sources-intro { max-width: 44rem; margin: 0 0 2.4rem; color: var(--muted); }
.src-list { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.src-list a { display: grid; grid-template-columns: minmax(0, 1fr) 3rem; gap: 0.4rem 2rem; padding: 2rem 0; border-top: 1px solid var(--rule); text-decoration: none; }
.src-list li:last-child a { border-bottom: 1px solid var(--rule); }
.src-list .meta { grid-column: 1; display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1rem; font: 600 0.68rem/1.4 var(--sans); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.src-list .kind { color: var(--accent); }
.src-list .t { grid-column: 1; font: 300 clamp(1.5rem, 1rem + 1.8vw, 2.6rem)/1.15 var(--serif); letter-spacing: -0.02em; transition: color 300ms var(--ease), transform 500ms var(--ease); }
.src-list .d { grid-column: 1; font: 500 0.9rem/1.5 var(--sans); color: var(--muted); max-width: 48rem; }
.src-list .arr { grid-column: 2; grid-row: 1 / span 3; align-self: center; justify-self: end; font: 300 2rem/1 var(--serif); color: var(--accent); transition: transform 400ms var(--ease); }
.src-list a:hover .t { color: var(--accent); transform: translateX(0.5rem); }
.src-list a:hover .arr { transform: translate(0.3rem, -0.3rem); }

/* Footer on night */
.site-foot { background: var(--night); color: var(--on-dark); padding: clamp(4.5rem, 9vw, 7.5rem) 0 2.2rem; overflow: hidden; }
.foot-name { font: 300 clamp(3.4rem, 1rem + 11vw, 12rem)/0.9 var(--serif); letter-spacing: -0.04em; margin: 0 0 2.6rem; color: var(--on-dark); }
.foot-links { list-style: none; margin: 0 0 4rem; padding: 0; display: flex; flex-wrap: wrap; gap: 0.8rem 2.4rem; font: 500 1rem/1 var(--sans); }
.foot-links a { text-decoration: none; display: inline-flex; gap: 0.4rem; padding: 0.4rem 0; border-bottom: 1px solid rgba(169, 205, 196, 0.35); }
.foot-links a:hover { border-color: var(--glow); color: var(--glow); }
.foot-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin: 0; padding-top: 1.6rem; border-top: 1px solid rgba(169, 205, 196, 0.25); font: 500 0.8rem/1.5 var(--sans); color: var(--on-dark-2); }

/* Motion: hidden states apply only with JavaScript and without reduced motion */
.js .reveal { opacity: 0; transform: translateY(1.5rem); transition: opacity 1000ms var(--ease), transform 1000ms var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }
.js .stagger > * { opacity: 0; transform: translateY(1.2rem); transition: opacity 800ms var(--ease), transform 800ms var(--ease); }
.js .stagger.in > * { opacity: 1; transform: none; }
.js .stagger.in > *:nth-child(2) { transition-delay: 80ms; } .js .stagger.in > *:nth-child(3) { transition-delay: 160ms; }
.js .stagger.in > *:nth-child(4) { transition-delay: 240ms; } .js .stagger.in > *:nth-child(5) { transition-delay: 320ms; }
.js .stagger.in > *:nth-child(n+6) { transition-delay: 400ms; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal, .js .stagger > * { opacity: 1 !important; transform: none !important; transition: none !important; }
  .band-img picture { transform: none !important; }
  .paper, .src-list .t, .src-list .arr, .btn { transition: none; }
}

/* Responsive */
@media (max-width: 64rem) {
  .site-head .wrap { flex-wrap: wrap; gap: 0.2rem 1rem; padding-top: 0.55rem; padding-bottom: 0.45rem; }
  .sections { order: 3; width: 100%; margin-left: 0; gap: 1.35rem; overflow-x: auto; scrollbar-width: none; }
  .sections::-webkit-scrollbar { display: none; }
  .sections a { flex: 0 0 auto; }
  .fig-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fig-list .big { grid-column: 1 / -1; }
  .fig-list li:nth-child(2), .fig-list li:nth-child(4) { padding-left: 0; border-left: 0; }
  .fig-list li { padding-bottom: 1.8rem; }
  .fig-list li:nth-child(n+2) { border-top: 1px solid rgba(169, 205, 196, 0.25); }
}
@media (max-width: 52rem) {
  .hero { min-height: auto; padding: 7.6rem 0 2.4rem; align-items: flex-start; }
  .helix { top: 6.8rem; width: 46%; height: 13.5rem; opacity: 0.34; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(8.25rem, 9.5rem); gap: 0.9rem 1rem; align-items: start; }
  .hero-text, .hero-identity { display: contents; }
  .hero h1 { grid-column: 1; grid-row: 1; align-self: end; font-size: clamp(2.8rem, 13vw, 4rem); max-width: 6.6ch; }
  .alt-name { grid-column: 1; grid-row: 2; margin: 0.5rem 0 0; font-size: 0.72rem; letter-spacing: 0.045em; }
  .hero-lead { grid-column: 1 / -1; grid-row: 3; margin: 0.45rem 0 0.3rem; font-size: 1rem; line-height: 1.45; }
  .hero-proof { grid-column: 1 / -1; grid-row: 4; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 0; padding: 0; }
  .hero-proof li { padding: 0.75rem 0.65rem; }
  .hero-proof li:first-child, .hero-proof li:nth-child(3) { padding-left: 0; border-left: 0; }
  .hero-proof li:nth-child(n+3) { border-top: 1px solid rgba(169,205,196,0.3); }
  .hero-proof strong { font-size: 1.55rem; }
  .hero-cta { grid-column: 1 / -1; grid-row: 5; display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }
  .hero-cta .btn { min-height: 3rem; justify-content: center; padding: 0.75rem 0.85rem; text-align: center; line-height: 1.2; }
  .hero-portrait { grid-column: 2; grid-row: 1 / span 2; width: 100%; margin: 0; padding: 0 0.35rem 0.35rem 0; }
  .hero-portrait::before { inset: 0 0.05rem 0.05rem 0.35rem; transform: translate(0.4rem, -0.4rem); }
  .hero-roles { grid-column: 1 / -1; grid-row: 6; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 0; gap: 0 1rem; }
  .hero-roles li { display: block; padding: 0.65rem 0; border-top: 1px solid rgba(169,205,196,0.3); border-bottom: 0; }
  .hero-roles span, .hero-roles strong { display: block; }
  .hero-roles strong { margin-top: 0.22rem; }
  .profile-text, .profile-photo, .career-side, .strand-wrap, .research-grid > div:first-child, .papers, .archive-head h2, .archive-head .intro { grid-column: 1 / -1; }
  .profile-photo { margin-top: 2.4rem; max-width: 26rem; }
  .career-side { position: static; margin-bottom: 2rem; }
  .now-label, .now-date, .now { display: none; }
  .node .contribution { display: block; }
  .papers { margin-top: 2rem; }
  .archive-head .intro { margin-top: 1rem; }
  .archive-card--signing, .archive-card--gentis-2022 { grid-column: 1 / span 5; margin-top: 0; }
  .archive-card--award, .archive-card--gentis-2019 { grid-column: 6 / span 7; margin-top: 4rem; }
  .archive-card--esmo, .archive-card--group, .archive-video { grid-column: 1 / -1; margin-top: 0; }
  .ach-list { grid-template-columns: minmax(0, 1fr); }
  .paper .body { padding-left: 1.8rem; }
}
@media (max-width: 34rem) {
  .archive-grid { gap: 2.4rem; }
  .archive-card--signing, .archive-card--award, .archive-card--esmo, .archive-card--gentis-2019, .archive-card--gentis-2022, .archive-card--group, .archive-video { grid-column: 1 / -1; margin-top: 0; }
  .archive-video figcaption { grid-template-columns: minmax(0, 1fr); gap: 0.35rem; }
  .paper summary { grid-template-columns: minmax(0, 1fr); padding: 1.4rem; }
  .paper .yr { grid-row: auto; font-size: 1.2rem; }
  .paper .body { padding: 0 1.4rem 1.4rem; }
  .src-list a { grid-template-columns: minmax(0, 1fr) 2rem; gap: 0.4rem 1rem; }
}
@media print {
  .site-head, .helix { display: none; }
  .hero, .figures, .site-foot { background: none; color: #000; }
}