/* Tokens and fonts follow the STACX Lab site (stacx-lab.github.io); layout follows a single reading column. */

@font-face { font-family: 'Lato'; font-style: normal; font-weight: 400; font-display: swap; src: url(../fonts/lato-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: 'Lato'; font-style: normal; font-weight: 700; font-display: swap; src: url(../fonts/lato-latin-700-normal.woff2) format('woff2'); }
@font-face { font-family: 'Lato'; font-style: italic; font-weight: 400; font-display: swap; src: url(../fonts/lato-latin-400-italic.woff2) format('woff2'); }
@font-face { font-family: 'Roboto Slab'; font-style: normal; font-weight: 500 700; font-display: swap; src: url(../fonts/roboto-slab-latin-700-normal.woff2) format('woff2'); }
@font-face { font-family: 'Commit Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url(../fonts/commit-mono-latin-400-normal.woff2) format('woff2'); }

/* ── tokens ───────────────────────────────────────────── */
:root {
  --bg: #f7f6f2;
  --bg-2: #efede7;
  --panel: #fbfaf7;
  --ink: #17171c;
  --ink-2: #4a4a55;
  --ink-3: #8a8a96;
  --rule: #dcd9d0;
  --rule-2: #c9c5ba;
  --accent: #6159d6;
  --accent-ink: #4b43c0;
  --accent-bg: #e9e7fb;
  --award: #b26a00;
  --award-bg: #f6ead6;
  --grid: rgb(23 23 28 / 0.07);

  --font-body: 'Lato', 'Helvetica Neue', Arial, sans-serif;
  --font-head: 'Roboto Slab', Georgia, serif;
  --font-mono: 'Commit Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 780px;
  --topbar: 46px;
  --radius: 4px;
  --tracking: -0.02em;
  color-scheme: light;
}

:root[data-theme='dark'] {
  --bg: #111114;
  --bg-2: #18181c;
  --panel: #151518;
  --ink: #e9e7e1;
  --ink-2: #b1afb8;
  --ink-3: #75747f;
  --rule: #2a2a31;
  --rule-2: #3a3a43;
  --accent: #9b95f5;
  --accent-ink: #b4afff;
  --accent-bg: #23213d;
  --award: #e3a54a;
  --award-bg: #2a2114;
  --grid: rgb(233 231 225 / 0.06);
  color-scheme: dark;
}

/* ── base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--topbar) + 16px); scrollbar-gutter: stable; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
img { max-width: 100%; }
::selection { background: var(--accent-bg); color: var(--ink); }
h1, h2, h3 { font-family: var(--font-head); font-weight: 700; color: var(--ink); }
.mono { font-family: var(--font-mono); letter-spacing: var(--tracking); font-variant-ligatures: none; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 24px; }
@media (max-width: 600px) { .wrap { padding-inline: 16px; } }

/* `// label` section markers */
.kicker { font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 12px; color: var(--ink-3); margin: 0 0 6px; }
.kicker::before { content: '// '; color: var(--accent); }

/* ── top bar ──────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 40; height: var(--topbar);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.bar { max-width: var(--wrap); margin: 0 auto; padding-inline: 24px; height: 100%; display: flex; align-items: center; gap: 24px; }
.brand { font-family: var(--font-head); font-weight: 700; color: var(--ink); white-space: nowrap; }
.brand:hover { text-decoration: none; }
.links { min-width: 0; display: flex; gap: 18px; font-size: 14.5px; overflow-x: auto; scrollbar-width: none; }
.links a { color: var(--ink-2); white-space: nowrap; }
.links a:hover { color: var(--ink); text-decoration: none; }
.links a[aria-current] { color: var(--accent-ink); }
.theme {
  margin-left: auto; flex: none; width: 30px; height: 30px; font: inherit; font-size: 14px; color: var(--ink-2);
  background: none; border: 1px solid transparent; border-radius: var(--radius); cursor: pointer;
}
.theme:hover { border-color: var(--rule); }
:root[data-theme='dark'] .sun, :root:not([data-theme='dark']) .moon { display: none; }
@media (max-width: 600px) { .bar { padding-inline: 16px; gap: 14px; } .links { gap: 12px; font-size: 13.5px; } }

/* ── page ─────────────────────────────────────────────── */
main { padding: 56px 0 24px; flex: 1; width: 100%; }
.page-head { margin-bottom: 8px; }
.page-head h1 { font-size: clamp(30px, 5vw, 40px); line-height: 1.15; margin: 0; }

section { padding: 36px 0 8px; }
section > h2 {
  font-size: 22px; margin: 0 0 18px; padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}
section > h2 .more { font-family: var(--font-body); font-weight: 400; font-size: 14px; margin-left: 10px; }
p { margin: 0 0 14px; color: var(--ink-2); }
b, strong { color: var(--ink); }

/* ── home hero ────────────────────────────────────────── */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 200px; gap: 36px; align-items: start; }
.hero h1 { font-size: clamp(38px, 6vw, 52px); line-height: 1.05; margin: 0 0 10px; letter-spacing: -0.01em; }
.hero .role { font-style: italic; color: var(--ink-2); margin: 0 0 8px; font-size: 17px; }
.hero .email { font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 12.5px; color: var(--ink-2); margin: 0 0 22px; }
.hero .email .dim { color: var(--ink-3); }
.hero .bio p { font-size: 16.5px; line-height: 1.65; }
.hl { color: var(--accent-ink); font-weight: 700; }
.side { display: flex; flex-direction: column; align-items: center; gap: 12px; padding-top: 6px; }
.portrait { width: 200px; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 10px; border: 1px solid var(--rule); background: var(--bg-2); }
.icons { display: flex; gap: 14px; }
.icons a { color: var(--ink-3); display: inline-flex; }
.icons a:hover { color: var(--accent); }
.icons svg { width: 18px; height: 18px; }
.affil { display: flex; flex-direction: column; gap: 8px; align-items: center; }
.affil img { width: 150px; height: auto; border-radius: 3px; mix-blend-mode: multiply; }
:root[data-theme='dark'] .affil img { mix-blend-mode: normal; background: #fff; padding: 2px 4px; }
@media (max-width: 640px) {
  .hero { grid-template-columns: 1fr; gap: 20px; }
  .side { order: -1; display: grid; grid-template-columns: 110px 1fr; justify-items: start; gap: 10px 16px; }
  .portrait { width: 110px; grid-row: span 2; }
  .affil { align-items: flex-start; }
  .affil img { width: 120px; }
  .side-globe { grid-column: 1 / -1; justify-self: center; }
}

.facts { display: grid; grid-template-columns: 90px 1fr; gap: 6px 20px; font-size: 15px; }
.facts dt { font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 12px; color: var(--ink-3); padding-top: 3px; }
.facts dd { margin: 0; color: var(--ink-2); }
.facts dd .note { color: var(--ink-3); font-size: 14px; }

/* dated rows (experiences, news-like lists) */
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 12px 0; border-bottom: 1px solid var(--rule); }
.timeline li:last-child { border-bottom: 0; }
.timeline .when { font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 12px; color: var(--ink-3); padding-top: 3px; }
.timeline .what { color: var(--ink-2); }
.timeline .what b { font-weight: 700; }
.timeline .sub { display: block; font-size: 14.5px; color: var(--ink-3); }
@media (max-width: 600px) { .timeline li { grid-template-columns: 1fr; gap: 2px; } }

/* news: the first four items show, the rest scroll; the bottom edge fades out */
.news-scroll {
  max-height: 17rem; overflow-y: auto; padding-right: 6px;
  scrollbar-width: thin; scrollbar-color: var(--rule-2) transparent;
  -webkit-mask-image: linear-gradient(to bottom, #000 calc(100% - 2.5rem), transparent 100%);
  mask-image: linear-gradient(to bottom, #000 calc(100% - 2.5rem), transparent 100%);
}
.news-scroll.all { max-height: none; -webkit-mask-image: none; mask-image: none; }
.news-scroll .news { padding-bottom: 1.5rem; }
.timeline.news li { grid-template-columns: 90px 1fr; padding: 9px 0; }
@media (max-width: 600px) { .timeline.news li { grid-template-columns: 1fr; } }

/* plain item lists (services, teaching, awards) */
.items { list-style: none; margin: 0; padding: 0; }
.items li { padding: 10px 0 10px 18px; position: relative; color: var(--ink-2); border-bottom: 1px solid var(--rule); }
.items li:last-child { border-bottom: 0; }
.items li::before { content: ''; position: absolute; left: 2px; top: 1.15em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); opacity: .7; }
.items .meta { font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 12px; color: var(--ink-3); margin-left: 6px; white-space: nowrap; }

/* ── publications & software ──────────────────────────── */
.pubs { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.pub {
  background: var(--panel); border: 1px solid var(--rule); border-radius: 8px;
  padding: 16px 18px 14px;
}
.pub:hover { border-color: var(--rule-2); }
.pub .title { font-weight: 700; color: var(--ink); font-size: 16.5px; line-height: 1.4; margin: 0 0 4px; }
.pub .authors { font-size: 14.5px; color: var(--ink-2); margin: 0 0 4px; }
.pub .authors b { color: var(--ink); }
.pub .venue { font-size: 14.5px; color: var(--ink-3); margin: 0 0 10px; }
.pub .venue i { font-style: italic; }
.pub .desc { font-size: 15px; margin: 0 0 10px; }
.badge {
  display: inline-block; font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 11px;
  padding: 1px 7px; border-radius: 3px; margin-left: 6px; vertical-align: 1px;
  color: var(--award); background: var(--award-bg);
}
.venue-tag { font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 11.5px; color: var(--accent-ink); background: var(--accent-bg); padding: 1px 6px; border-radius: 3px; margin-right: 6px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; border-top: 1px solid var(--rule); padding-top: 10px; }
.chip {
  font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 12px;
  padding: 2px 9px; border: 1px solid var(--rule-2); border-radius: var(--radius); color: var(--accent-ink); background: var(--bg);
}
.chip:hover { border-color: var(--accent); text-decoration: none; }

/* ── team ─────────────────────────────────────────────── */
.people { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 28px; list-style: none; margin: 0; padding: 0; }
.people li { padding: 12px 0; border-top: 1px solid var(--rule); }
.people .name { font-family: var(--font-head); font-weight: 700; font-size: 16.5px; color: var(--ink); }
.people a.name { color: var(--ink); }
.people a.name:hover { color: var(--accent-ink); }
.people .role { display: block; font-size: 14px; color: var(--ink-2); }
.people .now { display: block; font-size: 13.5px; color: var(--ink-3); }
@media (max-width: 600px) { .people { grid-template-columns: 1fr; } }

/* ── footer ───────────────────────────────────────────── */
footer { border-top: 1px solid var(--rule); margin-top: 48px; }
footer .wrap { padding-block: 22px 40px; display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 12px; color: var(--ink-3); }
footer a { color: var(--ink-3); }
.map { display: flex; justify-content: center; padding-top: 28px; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; } }

/* ── visitor globe (js/globe.js) ──────────────────────── */
.hero-contact { padding-top: 22px; }
.hero-contact .facts { grid-template-columns: 70px 1fr; }
.side-globe { margin-top: 18px; max-width: 190px; }
.side-globe .visitor-globe__caption { font-size: 11px; }
.visitor-globe { position: relative; width: 100%; max-width: 260px; }
.visitor-globe canvas { display: block; margin: 0 auto; cursor: grab; touch-action: pan-y; }
.visitor-globe canvas.is-dragging { cursor: grabbing; }
.visitor-globe__caption { margin-top: 10px; text-align: center; font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 12px; color: var(--ink-3); }
.visitor-globe__stat { appearance: none; background: none; border: 0; padding: 0; font: inherit; letter-spacing: inherit; color: inherit; cursor: pointer; border-bottom: 1px dotted var(--rule-2); }
.visitor-globe__stat:hover, .visitor-globe__stat:focus-visible { color: var(--accent-ink); border-bottom-color: var(--accent); }
.visitor-globe__stat.is-open { color: var(--accent-ink); border-bottom: 1px solid var(--accent); }
.visitor-globe__sep { margin: 0 .5em; opacity: .6; }
.visitor-globe__panel { margin-top: 10px; border: 1px solid var(--rule); background: var(--panel); border-radius: 6px; padding: 8px 10px 10px; }
.visitor-globe__panel-head { font-family: var(--font-mono); letter-spacing: var(--tracking); font-size: 11px; color: var(--ink-3); padding-bottom: 6px; border-bottom: 1px solid var(--rule); }
.visitor-globe__list { list-style: none; margin: 0; padding: 0; }
.visitor-globe__list li { border-bottom: 1px solid var(--rule); }
.visitor-globe__list li:last-child { border-bottom: 0; }
.visitor-globe__row { appearance: none; background: none; border: 0; width: 100%; display: flex; align-items: baseline; gap: 8px; padding: 5px 2px; font: inherit; font-size: 14px; line-height: 1.35; color: var(--ink-2); text-align: left; cursor: pointer; }
.visitor-globe__row:hover, .visitor-globe__row:focus-visible, .visitor-globe__row.is-focused { color: var(--accent-ink); background: var(--accent-bg); }
.visitor-globe__rank { flex: none; min-width: 1.4em; font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); }
.visitor-globe__place { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.visitor-globe__count { flex: none; font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); }
.visitor-globe__more { appearance: none; background: none; border: 0; display: block; width: 100%; margin-top: 6px; padding: 2px 0; font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); cursor: pointer; }
.visitor-globe__more:hover, .visitor-globe__more:focus-visible { color: var(--accent-ink); }
.visitor-globe__tooltip { position: absolute; transform: translate(-50%, -100%); background: var(--panel); border: 1px solid var(--rule); border-radius: 3px; color: var(--ink); font-size: 12px; line-height: 1.9; padding: 0 8px; white-space: nowrap; pointer-events: none; box-shadow: 0 2px 8px rgb(0 0 0 / 0.1); }

/* team page title: lab logo + name */
.lab-title { display: inline-flex; align-items: center; gap: .32em; color: var(--accent-ink); }
.lab-title:hover { text-decoration: none; color: var(--accent); }
.lab-title img { width: 1.05em; height: 1.05em; }
.lab-title .night, :root[data-theme='dark'] .lab-title .day { display: none; }
:root[data-theme='dark'] .lab-title .night { display: inline; }
.lab-inline { gap: .25em; vertical-align: -0.12em; font-weight: 700; }
.lab-inline img { width: 1em; height: 1em; }
.lab-inline:hover { text-decoration: underline; text-underline-offset: 3px; }