/* Harris Group — shared styles */
:root {
  --bg: #f7f6f2;
  --bg-2: #efede6;
  --card: #ffffff;
  --ink: #111318;
  --ink-2: #474a52;
  --ink-3: #7a7d85;
  --line: #e1ded5;
  --accent: #c2410c;       /* MIT-ish ember */
  --accent-2: #2a78d6;
  --accent-soft: #fbe7dc;
  --hero-bg: #0b0e17;
  --hero-ink: #f3f1ea;
  --hero-ink-2: #a9adba;
  --shadow: 0 1px 2px rgba(16,18,24,.05), 0 8px 24px rgba(16,18,24,.06);
  --radius: 14px;
  --maxw: 1120px;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1117; --bg-2: #161922; --card: #171a23;
    --ink: #f1efe8; --ink-2: #c3c2b7; --ink-3: #8b8e98;
    --line: #2a2e3a; --accent: #f97316; --accent-2: #3987e5; --accent-soft: #2a1a10;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
    --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1117; --bg-2: #161922; --card: #171a23;
  --ink: #f1efe8; --ink-2: #c3c2b7; --ink-3: #8b8e98;
  --line: #2a2e3a; --accent: #f97316; --accent-2: #3987e5; --accent-soft: #2a1a10;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
  --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.65 "Inter", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { font-family: "Fraunces", Georgia, serif; font-weight: 500; letter-spacing: -.015em; line-height: 1.15; margin: 0 0 .5em; }
h1 { font-size: clamp(2.4rem, 5.6vw, 4.4rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; color: var(--ink-2); }
.eyebrow { font: 600 .75rem/1 "JetBrains Mono", ui-monospace, monospace; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; display: block; }
.lede { font-size: 1.15rem; max-width: 62ch; }

/* ---------- Nav ---------- */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); background: color-mix(in srgb, var(--bg) 78%, transparent); border-bottom: 1px solid var(--line); }
.nav.on-hero { background: color-mix(in srgb, var(--hero-bg) 55%, transparent); border-bottom-color: rgba(255,255,255,.08); color: var(--hero-ink); }
.nav .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: -.01em; }
.brand-mark { width: 34px; height: 34px; border-radius: 50%; background: #fff; object-fit: contain; padding: 2px; }
.brand small { font-weight: 400; opacity: .6; }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a { text-decoration: none; padding: 8px 12px; border-radius: 999px; font-size: .92rem; opacity: .78; transition: opacity .2s, background .2s; }
.nav-links a:hover { opacity: 1; background: color-mix(in srgb, currentColor 8%, transparent); }
.nav-links a[aria-current="page"] { opacity: 1; background: color-mix(in srgb, currentColor 10%, transparent); }
.theme-btn { border: 1px solid color-mix(in srgb, currentColor 20%, transparent); background: none; color: inherit; width: 36px; height: 36px; border-radius: 999px; cursor: pointer; display: grid; place-items: center; }
.theme-btn svg { width: 17px; height: 17px; }
.menu-btn { display: none; }
@media (max-width: 760px) {
  .nav-links { position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: var(--bg); color: var(--ink); border-bottom: 1px solid var(--line); padding: 8px 16px 16px; display: none; }
  .nav-links.open { display: flex; }
  .menu-btn { display: grid; margin-left: auto; }
  .nav-links { margin-left: 0; }
}

/* ---------- Hero ---------- */
.hero { position: relative; background: var(--hero-bg); color: var(--hero-ink); overflow: hidden; margin-top: -65px; padding-top: 65px; }
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at 20% 60%, rgba(11,14,23,.85) 0%, rgba(11,14,23,.35) 55%, rgba(11,14,23,0) 80%); pointer-events: none; }
.hero .wrap { position: relative; z-index: 2; padding-top: 120px; padding-bottom: 120px; }
.hero h1 { max-width: 15ch; color: var(--hero-ink); }
.hero h1 em { font-style: italic; color: #fdba74; }
.hero p { color: var(--hero-ink-2); }
.hero .eyebrow { color: #fdba74; }
.hero.short .wrap { padding-top: 88px; padding-bottom: 64px; }
.hero.short h1 { font-size: clamp(2.2rem, 4.8vw, 3.6rem); max-width: 20ch; }
.btns { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 999px; font-weight: 500; font-size: .95rem; text-decoration: none; transition: transform .15s, background .2s; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: #f97316; color: #1a0d04; }
.btn-ghost { border: 1px solid rgba(255,255,255,.25); color: var(--hero-ink); }
.btn-ghost:hover { background: rgba(255,255,255,.08); }

/* ---------- Sections ---------- */
section { padding: 96px 0; }
section.tight { padding: 64px 0; }
.alt { background: var(--bg-2); }
.section-head { max-width: 720px; margin-bottom: 48px; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.stat { background: var(--card); padding: 28px 24px; }
.stat b { display: block; font: 500 2.4rem/1 "Fraunces", serif; letter-spacing: -.02em; margin-bottom: 8px; }
.stat span { color: var(--ink-3); font-size: .9rem; line-height: 1.4; display: block; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }

.grid { display: grid; gap: 20px; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .g3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .g3, .g2 { grid-template-columns: 1fr; } }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s; position: relative; }
.card:hover { transform: translateY(-2px); }
.card .icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); margin-bottom: 18px; }
.card .icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: .4em; }
.card p { font-size: .95rem; margin: 0; }
.card .tags { margin-top: 16px; display: flex; gap: 6px; flex-wrap: wrap; }
.tag { font: 500 .72rem/1 "JetBrains Mono", monospace; padding: 5px 8px; border-radius: 6px; background: var(--bg-2); color: var(--ink-2); border: 1px solid var(--line); }

.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 32px; } }

.pillars-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.pillars-list li { display: grid; grid-template-columns: 140px 1fr; gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.pillars-list li b { font: 600 .78rem/1.5 "JetBrains Mono", monospace; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.pillars-list li span { color: var(--ink-2); }
@media (max-width: 620px) { .pillars-list li { grid-template-columns: 1fr; gap: 4px; } }

.logos { display: flex; flex-wrap: wrap; gap: 10px; }
.logo-chip { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); text-decoration: none; font-size: .9rem; font-weight: 500; }
.logo-chip i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); display: block; }
.logo-chip:hover { border-color: var(--accent); }

.quote { font: italic 400 clamp(1.4rem, 2.6vw, 2rem)/1.35 "Fraunces", serif; color: var(--ink); max-width: 30ch; margin: 0; }

.cta { background: var(--hero-bg); color: var(--hero-ink); border-radius: 24px; padding: 56px; display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; position: relative; overflow: hidden; }
.cta h2 { color: var(--hero-ink); margin: 0 0 8px; }
.cta p { color: var(--hero-ink-2); margin: 0; max-width: 52ch; }

/* ---------- Press ---------- */
.press-year { display: grid; grid-template-columns: 120px 1fr; gap: 32px; padding: 32px 0; border-top: 1px solid var(--line); }
.press-year > h3 { font: 500 2rem/1 "Fraunces", serif; color: var(--ink-3); }
.press-items { display: grid; gap: 14px; }
.press-item { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center; padding: 18px 22px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); text-decoration: none; transition: border-color .2s, transform .2s; }
.press-item:hover { border-color: var(--accent); transform: translateX(3px); }
.press-item .src { font: 600 .72rem/1 "JetBrains Mono", monospace; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; display: block; }
.press-item .t { font-weight: 500; color: var(--ink); line-height: 1.4; }
.press-item .kind { font-size: .8rem; color: var(--ink-3); white-space: nowrap; }
.press-item .arrow { color: var(--ink-3); }
@media (max-width: 620px) { .press-year { grid-template-columns: 1fr; gap: 12px; } }

.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
.chip { border: 1px solid var(--line); background: var(--card); color: var(--ink-2); padding: 8px 14px; border-radius: 999px; font: 500 .85rem "Inter", sans-serif; cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* ---------- Team ---------- */
.people { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 20px; }
.person { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; transition: transform .2s; }
.person:hover { transform: translateY(-3px); }
.person .ph { aspect-ratio: 1 / 1; background: var(--bg-2); position: relative; overflow: hidden; }
.person .ph img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.92); transition: transform .4s; }
.person:hover .ph img { transform: scale(1.04); }
.person .ph .initials { position: absolute; inset: 0; display: grid; place-items: center; font: 500 3rem "Fraunces", serif; color: var(--ink-3); background: linear-gradient(135deg, var(--bg-2), var(--line)); }
.person .body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.person h3 { font-size: 1.15rem; margin: 0; }
.person .role { font-size: .88rem; color: var(--ink-2); }
.person .focus { font-size: .85rem; color: var(--ink-3); line-height: 1.5; }
.person .badges { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.badge { font: 600 .68rem/1 "JetBrains Mono", monospace; letter-spacing: .04em; padding: 5px 8px; border-radius: 6px; background: var(--accent-soft); color: var(--accent); }
.badge.friend { background: color-mix(in srgb, var(--accent-2) 14%, transparent); color: var(--accent-2); }
.person .link { margin-top: auto; padding-top: 10px; font-size: .85rem; font-weight: 500; color: var(--accent); text-decoration: none; }
.person .link:hover { text-decoration: underline; }

.alumni { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 12px; }
.alum { display: flex; gap: 14px; align-items: center; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.alum img, .alum .mini { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; flex: none; }
.alum .mini { display: grid; place-items: center; background: var(--bg-2); font: 500 1.1rem "Fraunces", serif; color: var(--ink-3); }
.alum b { display: block; font-weight: 600; }
.alum b a { text-decoration: none; }
.alum b a:hover { color: var(--accent); }
.alum span { font-size: .85rem; color: var(--ink-3); display: block; line-height: 1.45; }
.ugrads { columns: 3 220px; column-gap: 32px; padding: 0; list-style: none; margin: 0; }
.ugrads li { break-inside: avoid; padding: 6px 0; border-bottom: 1px dashed var(--line); font-size: .92rem; color: var(--ink-2); }
.ugrads li small { color: var(--ink-3); }
.subhead { display: flex; align-items: baseline; gap: 14px; margin: 56px 0 20px; }
.subhead h3 { font-size: 1.6rem; margin: 0; }
.subhead span { color: var(--ink-3); font-size: .9rem; }

/* ---------- Results ---------- */
.viz-card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 28px 28px 20px; box-shadow: var(--shadow); }
.viz-card h3 { margin-bottom: 4px; }
.viz-card .sub { color: var(--ink-3); font-size: .9rem; margin-bottom: 18px; }
#timeline { width: 100%; height: auto; display: block; overflow: visible; }
#timeline .grid-line { stroke: var(--line); stroke-width: 1; }
#timeline .axis-label { fill: var(--ink-3); font: 500 11px "JetBrains Mono", monospace; }
#timeline .lane-label { fill: var(--ink); font: 600 12.5px "Inter", sans-serif; }
#timeline .lane-count { fill: var(--ink-3); font: 500 11px "JetBrains Mono", monospace; }
#timeline .dot { stroke: var(--card); stroke-width: 2; transition: r .15s; cursor: pointer; }
#timeline .dot.star { stroke: var(--ink); stroke-width: 1.5; }
#timeline g.pt:hover .dot, #timeline g.pt:focus .dot { r: 9; }
#timeline g.pt:focus { outline: none; }
#timeline .today { stroke: var(--ink-3); stroke-dasharray: 3 3; }
.legend { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 14px; font-size: .85rem; color: var(--ink-2); }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.legend i.ring { background: transparent; border: 1.5px solid var(--ink); }
.tooltip { position: fixed; pointer-events: none; z-index: 100; background: var(--ink); color: var(--bg); padding: 10px 12px; border-radius: 8px; font-size: .82rem; line-height: 1.4; max-width: 300px; opacity: 0; transform: translateY(4px); transition: opacity .12s, transform .12s; box-shadow: 0 8px 24px rgba(0,0,0,.25); }
.tooltip.show { opacity: 1; transform: none; }
.tooltip b { display: block; font-weight: 600; margin-bottom: 3px; }
.tooltip .k { display: inline-block; width: 12px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 6px; }
.tooltip small { opacity: .7; }

.paper { display: grid; grid-template-columns: 6px 1fr; gap: 22px; padding: 26px 0; border-top: 1px solid var(--line); }
.paper .bar { border-radius: 3px; }
.paper .meta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; font: 500 .75rem "JetBrains Mono", monospace; color: var(--ink-3); margin-bottom: 8px; letter-spacing: .03em; }
.paper .meta .award { color: var(--accent); font-weight: 700; }
.paper h3 { font-size: 1.3rem; margin-bottom: 6px; }
.paper h3 a { text-decoration: none; }
.paper h3 a:hover { color: var(--accent); }
.paper p { margin: 0; max-width: 75ch; }
.paper .authors { font-size: .85rem; color: var(--ink-3); margin-top: 8px; }

details.table-view { margin-top: 18px; }
details.table-view summary { cursor: pointer; color: var(--ink-2); font-size: .88rem; }
details.table-view table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: .85rem; }
details.table-view th, details.table-view td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); color: var(--ink-2); vertical-align: top; }
details.table-view th { color: var(--ink); font-weight: 600; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); padding: 48px 0; color: var(--ink-3); font-size: .9rem; }
footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
footer a { color: var(--ink-2); }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* ---------- Logo & institutes ---------- */
.foot-logo img { width: 56px; height: 56px; border-radius: 50%; background: #fff; object-fit: contain; padding: 3px; border: 1px solid var(--line); }
footer .wrap { align-items: center; }
.logo-card { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 14px; }
.logo-card img { width: 220px; max-width: 70%; border-radius: 28px; background: #fff; padding: 14px; box-shadow: var(--shadow); border: 1px solid var(--line); transform: rotate(-3deg); transition: transform .4s; }
.logo-card img:hover { transform: rotate(2deg) scale(1.03); }
.institutes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 860px) { .institutes { grid-template-columns: 1fr; } }
.inst { display: flex; flex-direction: column; gap: 10px; padding: 28px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow); text-decoration: none; position: relative; overflow: hidden; transition: transform .2s, border-color .2s; }
.inst::before { content: ""; position: absolute; left: 0; top: 0; right: 0; height: 4px; background: var(--c); }
.inst:hover { transform: translateY(-3px); border-color: var(--c); }
.inst .abbr { font: 500 2.2rem/1 "Fraunces", serif; letter-spacing: -.02em; color: var(--ink); }
.inst .full { font-weight: 600; color: var(--ink); font-size: .98rem; line-height: 1.35; }
.inst p { font-size: .92rem; margin: 0; }
.inst .role { font: 600 .72rem/1.3 "JetBrains Mono", monospace; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.inst .go { margin-top: auto; padding-top: 8px; font-weight: 600; font-size: .9rem; color: var(--accent); }
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: var(--card); box-shadow: var(--shadow); margin-bottom: 20px; }
.feature.rev .feature-media { order: 2; }
.feature-media { background: var(--bg-2); min-height: 260px; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; }
.feature-media figcaption { font-size: .78rem; color: var(--ink-3); padding: 8px 14px; }
.feature-body { padding: 32px; display: flex; flex-direction: column; gap: 10px; }
.feature-body h3 { font-size: 1.45rem; margin: 0; }
.feature-body h3 a { text-decoration: none; }
.feature-body h3 a:hover { color: var(--accent); }
.feature-body p { margin: 0; }
.feature-body .links { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
.pill { font-size: .85rem; font-weight: 500; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.pill:hover { border-color: var(--accent); color: var(--accent); }
.pill.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.feature-art { display: grid; place-items: center; height: 100%; min-height: 260px; background: radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--c) 30%, transparent), transparent 60%), var(--hero-bg); color: #fff; font: 500 3.2rem/1 "Fraunces", serif; letter-spacing: -.02em; text-align: center; padding: 24px; }
.feature-art small { display: block; font: 500 .8rem/1.4 "JetBrains Mono", monospace; letter-spacing: .1em; text-transform: uppercase; opacity: .7; margin-top: 12px; }
@media (max-width: 760px) { .feature { grid-template-columns: 1fr; } .feature.rev .feature-media { order: 0; } }