/* optimal* lab: a dark, cinematic theme that continues the intro film, and a warm paper light theme.
   Every colour is a token; the light set applies by system preference or the nav toggle (data-theme). */
@font-face { font-family: "Fraunces"; src: url("/assets/fonts/fraunces-normal.woff2") format("woff2"); font-weight: 300 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Fraunces"; src: url("/assets/fonts/fraunces-italic.woff2") format("woff2"); font-weight: 300 700; font-style: italic; font-display: swap; }
@font-face { font-family: "Inter"; src: url("/assets/fonts/inter-normal.woff2") format("woff2"); font-weight: 300 700; font-style: normal; font-display: swap; }

:root {
  --bg: #05070d;
  --bg-0: rgba(5,7,13,0);
  --bg-2: #0a0f1d;
  --bg-2-0: var(--bg-2-0);
  --panel: #0e1526;
  --panel-2: #0a1020;
  --media-1: #131d36;
  --media-2: #070b16;
  --foot: #04060b;
  --line: rgba(201, 211, 238, 0.12);
  --line-strong: rgba(255,255,255,.18);
  --wash: rgba(255,255,255,.035);
  --wash-2: var(--wash-2);
  --nav-bg: rgba(5, 7, 13, 0.82);
  --ink: #f5efe6;
  --ink-2: #c9c3bb;
  --mute: #8f96a8;
  --accent: #ff7a1a;
  --accent-2: #ffb27a;
  --accent-soft: var(--accent-soft);
  --accent-line: var(--accent-line);
  --btn: #ff7a1a;
  --btn-hover: #ffb27a;
  --on-accent: #140800;
  --on-accent-2: #4a2306;
  --m-tile: var(--m-tile);
  --m-faint: rgba(201,211,238,.17);
  --m-blue: var(--m-blue);
  --m-violet: var(--m-violet);
  --m-warm: #ffb27a;
  --bm-outer: #fcd9b8;
  --bm-inner: #f08a3c;
  --shadow: var(--shadow);
  color-scheme: dark;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, Segoe UI, sans-serif;
  --wrap: 1180px;
  --r: 18px;
}
:root[data-theme="light"] {
  --bg: #faf7f2;
  --bg-0: rgba(250,247,242,0);
  --bg-2: #f3ede4;
  --bg-2-0: rgba(243,237,228,0);
  --panel: #ffffff;
  --panel-2: #fbf8f3;
  --media-1: #fff7ee;
  --media-2: #f1e8dc;
  --foot: #efe8dd;
  --line: rgba(41, 33, 25, 0.13);
  --line-strong: rgba(41,33,25,.24);
  --wash: rgba(41,33,25,.035);
  --wash-2: rgba(41,33,25,.06);
  --nav-bg: rgba(250, 247, 242, 0.88);
  --ink: #1c1917;
  --ink-2: #44403c;
  --mute: #6b635b;
  --accent: #c2410c;
  --accent-2: #9a3412;
  --accent-soft: rgba(234,88,12,.10);
  --accent-line: rgba(194,65,12,.38);
  --btn: #c2410c;
  --btn-hover: #9a3412;
  --on-accent: #ffffff;
  --on-accent-2: #fff4ec;
  --m-tile: #e7dccd;
  --m-faint: rgba(41,33,25,.16);
  --m-blue: #0284c7;
  --m-violet: #7c3aed;
  --m-warm: #ea580c;
  --bm-outer: #f2a76a;
  --bm-inner: #ea580c;
  --shadow: rgba(194,65,12,.18);
  color-scheme: light;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #faf7f2;
    --bg-0: rgba(250,247,242,0);
    --bg-2: #f3ede4;
    --bg-2-0: rgba(243,237,228,0);
    --panel: #ffffff;
    --panel-2: #fbf8f3;
    --media-1: #fff7ee;
    --media-2: #f1e8dc;
    --foot: #efe8dd;
    --line: rgba(41, 33, 25, 0.13);
    --line-strong: rgba(41,33,25,.24);
    --wash: rgba(41,33,25,.035);
    --wash-2: rgba(41,33,25,.06);
    --nav-bg: rgba(250, 247, 242, 0.88);
    --ink: #1c1917;
    --ink-2: #44403c;
    --mute: #6b635b;
    --accent: #c2410c;
    --accent-2: #9a3412;
    --accent-soft: rgba(234,88,12,.10);
    --accent-line: rgba(194,65,12,.38);
    --btn: #c2410c;
    --btn-hover: #9a3412;
    --on-accent: #ffffff;
    --on-accent-2: #fff4ec;
    --m-tile: #e7dccd;
    --m-faint: rgba(41,33,25,.16);
    --m-blue: #0284c7;
    --m-violet: #7c3aed;
    --m-warm: #ea580c;
    --bm-outer: #f2a76a;
    --bm-inner: #ea580c;
    --shadow: rgba(194,65,12,.18);
    color-scheme: light;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg, video { display: block; max-width: 100%; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { color: var(--accent); }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.12; margin: 0; letter-spacing: -0.01em; }
em { font-family: var(--serif); font-style: italic; color: var(--accent); }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.sr, .skip:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip:focus { position: fixed; top: 10px; left: 10px; z-index: 100; background: var(--accent); color: #000; padding: 8px 14px; border-radius: 8px; }
.eyebrow { font-size: 13px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--accent-2); margin: 0 0 14px; font-weight: 500; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---------- nav ---------- */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 28px; transition: background .4s, border-color .4s, backdrop-filter .4s; border-bottom: 1px solid transparent; }
.nav.solid { background: var(--nav-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-color: var(--line); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); }
.brand-mark { width: 38px; height: 38px; }
.bm-outer { stroke: var(--bm-outer); } .bm-inner { stroke: var(--bm-inner); } .bm-star { stroke: var(--accent); }
/* the nav floats over the (always dark) film until it turns solid, so it keeps dark ink there in both themes */
.nav:not(.solid) { --ink: #f5efe6; --ink-2: #d9d3cb; --accent: #ff7a1a; --accent-2: #ffb27a; --wash-2: rgba(255,255,255,.08); --line-strong: rgba(255,255,255,.22); --bm-outer: #fcd9b8; --bm-inner: #f08a3c; }
.theme-toggle { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line-strong); background: transparent; color: var(--ink-2); cursor: pointer; transition: color .2s, border-color .2s; }
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .moon { display: none; }
:root[data-theme="light"] .theme-toggle .sun { display: none; }
:root[data-theme="light"] .theme-toggle .moon { display: block; }
@media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) .theme-toggle .sun { display: none; } :root:not([data-theme="dark"]) .theme-toggle .moon { display: block; } }
.brand-word, .foot-word { font-family: var(--serif); font-size: 24px; letter-spacing: -0.01em; white-space: nowrap; }
.brand-word b, .foot-word b { color: var(--accent); font-weight: 700; }
.brand-word i, .foot-word i { color: var(--accent); font-style: normal; font-weight: 700; position: relative; top: -0.35em; font-size: .8em; }
.brand-word em, .foot-word em { color: var(--ink); font-weight: 300; }
.nav nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.nav nav a { color: var(--ink-2); font-size: 15px; padding: 6px 12px; border-radius: 999px; }
.nav nav a:hover { color: var(--ink); background: var(--wash-2); }
.nav nav a.nav-out { color: var(--accent-2); }

/* ---------- hero film ---------- */
.hero { position: relative; height: 100vh; height: 100svh; min-height: 520px; background: #05070d; overflow: hidden; }
.hero-film { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-shade { position: absolute; inset: auto 0 0 0; height: 30%; background: linear-gradient(to bottom, var(--bg-0), var(--bg)); pointer-events: none; }
.hero-controls { position: absolute; left: 50%; bottom: 74px; transform: translateX(-50%); display: flex; gap: 10px; z-index: 2; }
.btn-primary, .btn-ghost { display: inline-flex; align-items: center; gap: 8px; font: 500 15px/1 var(--sans); padding: 12px 20px; border-radius: 999px; cursor: pointer; border: 1px solid transparent; transition: transform .2s, background .2s, border-color .2s, color .2s; }
.btn-primary { background: var(--btn); color: var(--on-accent); }
.btn-primary:hover { background: var(--btn-hover); color: var(--on-accent); transform: translateY(-1px); }
.btn-ghost { background: var(--wash); color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--accent-2); color: var(--accent-2); }
/* on paper the film ends on a clean edge: a fade from navy to cream reads as grey haze */
:root[data-theme="light"] .hero-shade { display: none; }
.scroll-cue { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); width: 24px; height: 38px; border: 2px solid rgba(245,239,230,.4); border-radius: 14px; z-index: 2; }
.scroll-cue span { position: absolute; left: 50%; top: 7px; width: 4px; height: 8px; margin-left: -2px; background: var(--ink); border-radius: 2px; animation: cue 1.8s ease-in-out infinite; }
@keyframes cue { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(12px); } }

/* ---------- manifesto ---------- */
.manifesto { padding: 120px 0 70px; position: relative; }
.manifesto::before { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse 50% 60% at 50% 30%, rgba(255,122,26,.08), transparent 70%); pointer-events: none; }
.manifesto h1 { font-size: clamp(38px, 6vw, 76px); max-width: 15ch; }
.lede { font-size: clamp(18px, 2vw, 21px); color: var(--ink-2); max-width: 62ch; margin: 26px 0 0; }
.lede b { color: var(--ink); font-weight: 600; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin: 60px 0 0; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.stats div { background: var(--bg); padding: 26px 24px; }
.stats dt { font-family: var(--serif); font-size: 46px; color: var(--accent); line-height: 1; }
.stats dd { margin: 10px 0 0; color: var(--ink-2); font-size: 15px; }

/* ---------- the name ---------- */
.name { padding: 70px 0 110px; }
.name-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 60px; align-items: center; }
.nw { font-family: var(--serif); font-size: clamp(68px, 10vw, 140px); line-height: 1; margin: 0; letter-spacing: -0.02em; }
.nw .m { color: var(--accent); font-weight: 700; }
.nw .s { color: var(--accent); font-weight: 700; display: inline-block; font-size: .62em; vertical-align: top; margin-left: 4px; animation: spin 14s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.nw-exp { color: var(--ink-2); font-size: 20px; margin: 18px 0 0; }
.nw-exp b { color: var(--accent-2); }
.star { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.star li { background: linear-gradient(160deg, var(--panel), var(--bg-2)); border: 1px solid var(--line); border-radius: var(--r); padding: 22px 22px 20px; display: grid; grid-template-columns: auto 1fr; column-gap: 16px; transition: border-color .3s, transform .3s; }
.star li:hover { border-color: rgba(255,122,26,.5); transform: translateY(-3px); }
.sl { font-family: var(--serif); font-size: 64px; line-height: .9; color: var(--accent); font-weight: 600; grid-row: span 2; }
.sw { font-weight: 600; font-size: 19px; align-self: end; }
.sd { color: var(--mute); font-size: 15px; line-height: 1.45; }

/* ---------- section heads ---------- */
.sec-head { margin-bottom: 36px; }
.sec-head h2, .roadmap h2, .people h2 { font-size: clamp(32px, 4.4vw, 54px); }
.sec-sub { color: var(--ink-2); max-width: 60ch; margin: 14px 0 0; }

/* ---------- tag bar ---------- */
.research { padding: 100px 0 60px; background: linear-gradient(to bottom, var(--bg), var(--bg-2) 30%, var(--bg-2) 70%, var(--bg)); }
.tagbar { position: sticky; top: 66px; z-index: 20; display: flex; flex-wrap: wrap; gap: 8px; padding: 14px 0; margin-bottom: 30px; background: linear-gradient(to bottom, var(--bg-2) 75%, var(--bg-2-0)); }
.tag { font: 500 14px/1 var(--sans); color: var(--ink-2); background: var(--wash); border: 1px solid var(--line); padding: 9px 14px; border-radius: 999px; cursor: pointer; transition: all .2s; }
.tag span { color: var(--mute); font-size: 12px; margin-left: 4px; }
.tag:hover { border-color: rgba(255,122,26,.55); color: var(--ink); }
.tag.on { background: var(--btn); border-color: var(--btn); color: var(--on-accent); }
.tag.on span { color: var(--on-accent-2); }

/* ---------- highlight cards ---------- */
.hl-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.hl { background: linear-gradient(170deg, var(--panel), var(--panel-2)); border: 1px solid var(--line); border-radius: 22px; overflow: hidden; display: flex; flex-direction: column; transition: border-color .35s, transform .35s, box-shadow .35s; }
.hl:hover { border-color: rgba(255,122,26,.45); transform: translateY(-4px); box-shadow: 0 30px 60px -30px var(--shadow); }
.hl[hidden] { display: none; }
.hl-media { aspect-ratio: 400 / 220; background: radial-gradient(ellipse 80% 90% at 50% 50%, var(--media-1), var(--media-2)); border-bottom: 1px solid var(--line); }
.hl-media svg { width: 100%; height: 100%; }
.hl-body { padding: 24px 26px 26px; display: flex; flex-direction: column; flex: 1; }
.hl-kicker { margin: 0 0 10px; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--accent-2); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.hl-venue { letter-spacing: .04em; text-transform: none; color: var(--ink); background: var(--accent-soft); border: 1px solid var(--accent-line); border-radius: 999px; padding: 3px 10px; font-size: 12px; }
.hl h3 { font-size: 26px; }
.hl-blurb { color: var(--ink-2); font-size: 16px; margin: 12px 0 16px; }
.hl-tags, .pub-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-chip { font-size: 12px; color: var(--mute); border: 1px solid var(--line); border-radius: 999px; padding: 3px 9px; }
.hl-actions { margin-top: auto; padding-top: 18px; display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.soon { font-size: 13px; color: var(--mute); display: inline-flex; align-items: center; gap: 8px; }
.soon::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); animation: pulse 2s ease-in-out infinite; }
.soon.big { margin-top: 22px; font-size: 15px; color: var(--accent-2); }
@keyframes pulse { 50% { opacity: .35; } }
.empty { color: var(--mute); text-align: center; padding: 30px 0; }

/* motifs: stroke palette shared by all six drawings */
.hl-media svg * { vector-effect: non-scaling-stroke; }
.motif-tap .m-grid rect { fill: var(--m-tile); stroke: var(--m-faint); animation: tok 4.8s ease-in-out infinite; animation-delay: var(--d); }
@keyframes tok { 0%, 20% { fill: var(--m-tile); } 45%, 80% { fill: var(--accent); } 100% { fill: var(--m-tile); } }
.motif-tap .m-sweep { stroke: var(--m-warm); stroke-width: 2; opacity: .7; animation: sweep 4.8s ease-in-out infinite; }
@keyframes sweep { 0% { transform: translateX(0); } 50% { transform: translateX(360px); } 100% { transform: translateX(0); } }
.motif-masafe .m-zone { fill: rgba(239, 68, 68, .12); stroke: rgba(239, 68, 68, .7); stroke-dasharray: 6 6; animation: zone 3s ease-in-out infinite; transform-origin: 200px 110px; }
@keyframes zone { 50% { transform: scale(1.08); } }
.motif-masafe .m-traj { fill: none; stroke-width: 2; stroke-dasharray: 4 6; opacity: .55; }
.m-traj.a, .m-agent.a { stroke: var(--accent); fill: var(--accent); }
.m-traj.b, .m-agent.b { stroke: var(--m-blue); fill: var(--m-blue); }
.m-traj.c, .m-agent.c { stroke: var(--m-violet); fill: var(--m-violet); }
.m-traj { fill: none !important; }
.motif-saferl .m-bound { fill: none; stroke: color-mix(in srgb, var(--m-blue) 55%, transparent); stroke-width: 2; stroke-dasharray: 5 6; }
.motif-saferl .m-bound.inner { stroke: rgba(255,122,26,.65); stroke-dasharray: none; }
.motif-saferl .m-cloud { transform-origin: 200px 125px; animation: tighten 4.5s ease-in-out infinite; }
.motif-saferl .m-cloud circle { fill: var(--m-warm); opacity: .85; }
@keyframes tighten { 0%, 100% { transform: scale(1.35); opacity: .5; } 50% { transform: scale(.75); opacity: 1; } }
.motif-ot .m-plan path { fill: none; stroke: var(--accent); stroke-width: var(--w); opacity: .2; stroke-dasharray: 320; stroke-dashoffset: 320; animation: plan 4.5s ease-in-out infinite; animation-delay: var(--d); }
@keyframes plan { 40%, 75% { stroke-dashoffset: 0; opacity: .85; } 100% { stroke-dashoffset: -320; opacity: .2; } }
.motif-ot .m-src circle { fill: var(--m-blue); }
.motif-ot .m-dst rect { fill: var(--m-warm); }
.motif-world .m-frames rect { fill: color-mix(in srgb, var(--m-blue) 7%, transparent); stroke: color-mix(in srgb, var(--m-blue) 50%, transparent); stroke-width: 1.5; animation: frame 3.5s ease-in-out infinite; animation-delay: var(--d); }
@keyframes frame { 0%, 100% { opacity: .25; } 40% { opacity: 1; fill: rgba(255,122,26,.12); stroke: var(--accent); } }
.motif-world .m-roll { fill: none; stroke: var(--m-warm); stroke-width: 2; stroke-dasharray: 3 6; }
.motif-world .m-bot { fill: var(--accent); filter: drop-shadow(0 0 8px var(--accent)); }
.motif-riem .m-mesh path { fill: none; stroke: var(--m-faint); stroke-width: 1; }
.motif-riem .m-geo { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 420; animation: geo 4s ease-in-out infinite; }
@keyframes geo { 0% { stroke-dashoffset: 420; } 60%, 100% { stroke-dashoffset: 0; } }
.motif-riem .m-saddle { fill: var(--m-warm); animation: pulse 2s ease-in-out infinite; }

/* ---------- publications ---------- */
.pubs { padding: 90px 0 80px; }
.pub-tools { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; margin-top: 22px; }
.search input { width: min(440px, 80vw); font: 400 16px var(--sans); color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; }
.search input:focus { outline: none; border-color: var(--accent); }
.pub-count { color: var(--mute); margin: 0; font-size: 15px; }
.pub-year { display: grid; grid-template-columns: 120px 1fr; gap: 20px; border-top: 1px solid var(--line); padding: 26px 0; }
.pub-year[hidden] { display: none; }
.year { font-size: 34px; color: var(--accent); position: sticky; top: 140px; align-self: start; }
.pub-year ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.pub { display: grid; grid-template-columns: 1fr auto; gap: 18px; padding: 14px 16px; border-radius: 12px; transition: background .2s; }
.pub:hover { background: var(--wash); }
.pub[hidden] { display: none; }
.pub p { margin: 0; }
.pub-title { font-weight: 500; color: var(--ink); line-height: 1.4; }
.authors { color: var(--mute); font-size: 15px; margin-top: 3px !important; }
.authors strong { color: var(--ink-2); font-weight: 600; }
.pub-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px !important; font-size: 13px; }
.venue { color: var(--accent-2); border: 1px solid var(--accent-line); border-radius: 999px; padding: 2px 10px; }
.note { color: var(--mute); padding: 2px 0; }
.award { color: var(--on-accent); background: var(--accent-2); border-radius: 999px; padding: 2px 10px; font-weight: 600; }
.pub-side { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; padding-top: 5px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--c, var(--mute)); }
.pub-links a { font-size: 14px; border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; }
.dot[data-tag="robotics"] { --c: #34d399; } .dot[data-tag="vision"] { --c: var(--m-blue); } .dot[data-tag="optimization"] { --c: #ff7a1a; }
.dot[data-tag="diffusion"] { --c: var(--m-violet); } .dot[data-tag="worldmodels"] { --c: #2dd4bf; } .dot[data-tag="language"] { --c: #f9a8d4; }
.dot[data-tag="safety"] { --c: #f87171; } .dot[data-tag="alignment"] { --c: #fbbf24; } .dot[data-tag="robustness"] { --c: #a3e635; }
.dot[data-tag="multiagent"] { --c: #60a5fa; } .dot[data-tag="rl"] { --c: #e879f9; } .dot[data-tag="ot"] { --c: #fdba74; } .dot[data-tag="science"] { --c: #94a3b8; }

:root[data-theme="light"] .dot[data-tag="robotics"] { --c: #059669; } :root[data-theme="light"] .dot[data-tag="vision"] { --c: #0284c7; } :root[data-theme="light"] .dot[data-tag="optimization"] { --c: #ea580c; }
:root[data-theme="light"] .dot[data-tag="diffusion"] { --c: #7c3aed; } :root[data-theme="light"] .dot[data-tag="worldmodels"] { --c: #0d9488; } :root[data-theme="light"] .dot[data-tag="language"] { --c: #db2777; }
:root[data-theme="light"] .dot[data-tag="safety"] { --c: #dc2626; } :root[data-theme="light"] .dot[data-tag="alignment"] { --c: #d97706; } :root[data-theme="light"] .dot[data-tag="robustness"] { --c: #65a30d; }
:root[data-theme="light"] .dot[data-tag="multiagent"] { --c: #2563eb; } :root[data-theme="light"] .dot[data-tag="rl"] { --c: #c026d3; } :root[data-theme="light"] .dot[data-tag="ot"] { --c: #f97316; } :root[data-theme="light"] .dot[data-tag="science"] { --c: #64748b; }

/* ---------- roadmap ---------- */
.roadmap { padding: 90px 0; background: radial-gradient(ellipse 60% 70% at 70% 50%, rgba(255,122,26,.07), transparent 70%); }
.roadmap-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: center; }
.constellation .c-links path { stroke: color-mix(in srgb, var(--accent-2) 45%, transparent); stroke-width: 1.5; stroke-dasharray: 4 6; animation: flow 3s linear infinite; }
.constellation .c-links path.faint { stroke: var(--m-faint); }
@keyframes flow { to { stroke-dashoffset: -20; } }
.constellation .c-nodes circle { fill: var(--bg); stroke: var(--m-warm); stroke-width: 2; }
.constellation .c-nodes text { fill: var(--ink-2); font: 500 14px var(--sans); text-anchor: middle; }
.constellation .c-star circle { fill: rgba(255,122,26,.12); stroke: var(--accent); stroke-width: 1.5; }
.constellation .c-star line { stroke: var(--accent); stroke-width: 7; }
.constellation .c-star g { animation: spin 16s linear infinite; }

/* ---------- news ---------- */
.news { padding: 80px 0; }
.news-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.news-item { display: grid; grid-template-columns: 92px 1fr; gap: 16px; align-items: start; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.news-badge { font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-2); border: 1px solid var(--accent-line); border-radius: 8px; padding: 5px 8px; text-align: center; }
.news-title { margin: 0; font-weight: 500; line-height: 1.4; }
.news-body { margin: 6px 0 0; color: var(--mute); font-size: 15px; }

/* ---------- people ---------- */
.people { padding: 90px 0 110px; }
.pi { display: grid; grid-template-columns: 320px 1fr; gap: 56px; align-items: center; }
.pi-photo { width: 100%; height: auto; border-radius: 26px; border: 1px solid var(--line); box-shadow: 0 40px 80px -40px var(--accent-line); }
.pi-awards { color: var(--accent-2); font-size: 15px; margin: 20px 0 0; }
.pi-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); padding: 50px 0 60px; background: var(--foot); }
.foot-grid { display: grid; gap: 10px; }
.foot-word { font-size: 34px; margin: 0; }
.foot-mission { margin: 0; color: var(--ink-2); font-size: 18px; }
.foot-mission em { color: var(--accent-2); }
.foot-small { margin: 10px 0 0; color: var(--mute); font-size: 14px; }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); transition-delay: calc(var(--i, 0) * 80ms); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- small screens ---------- */
@media (max-width: 900px) {
  .nav { padding: 10px 16px; }
  .nav nav a:not(.nav-out) { display: none; }
  .hero { height: auto; min-height: 0; aspect-ratio: 16 / 9; margin-top: 60px; }
  .hero-film { object-fit: contain; }
  .hero-controls { left: auto; right: 10px; bottom: 10px; transform: none; }
  .hero-controls .btn-primary, .hero-controls .btn-ghost { white-space: nowrap; padding: 7px 12px; font-size: 13px; }
  .hero-shade, .scroll-cue { display: none; }
  .btn-primary, .btn-ghost { padding: 9px 14px; font-size: 14px; }
  .wrap { padding: 0 16px; }
  .manifesto { padding-top: 60px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .name-grid, .roadmap-grid, .pi { grid-template-columns: 1fr; gap: 36px; }
  .pi-photo { max-width: 260px; }
  .star, .hl-grid, .news-list { grid-template-columns: 1fr; }
  .tagbar { top: 56px; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin: 0 -16px 24px; padding: 12px 16px; }
  .tag { white-space: nowrap; }
  .pub-year { grid-template-columns: 1fr; gap: 6px; }
  .year { position: static; }
  .pub { grid-template-columns: 1fr; padding: 12px 4px; }
  .pub-side { flex-direction: row; align-items: center; justify-content: space-between; padding: 0; }
  .news-item { grid-template-columns: 1fr; }
  .news-badge { justify-self: start; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}