/* Hassana Labs. One stylesheet, no framework.
   Palette: cool green-grey paper, near-black ink, one pen-blue accent, and five area
   colours that mean the same research area everywhere on the site. */

@font-face {
  font-family: "Bricolage Grotesque";
  src: url("../fonts/bricolage-grotesque-var.woff2") format("woff2");
  font-weight: 200 800; font-stretch: 75% 100%; font-display: swap;
}
@font-face {
  font-family: "Instrument Sans";
  src: url("../fonts/instrument-sans-var.woff2") format("woff2");
  font-weight: 400 700; font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-400.woff2") format("woff2");
  font-weight: 400; font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-500.woff2") format("woff2");
  font-weight: 500; font-display: swap;
}

:root {
  --bg: #f4f5f2;
  --surface: #fbfbf9;
  --sunk: #eceee9;
  --ink: #14181a;
  --ink-2: #4b524f;
  --muted: #666d69;
  --line: #dfe2dc;
  --line-2: #c5cbc3;
  --accent: #1f5fbf;
  --accent-ink: #ffffff;
  --accent-wash: #e3ebf7;
  --area-hallucination: #2a78d6;
  --area-context: #c4511f;
  --area-adaptation: #1f8a63;
  --area-efficiency: #a87200;
  --area-world: #4a3aa7;
  --area-other: #666d69;
  --shadow: 0 1px 0 rgba(20, 24, 26, .04);

  --font-display: "Bricolage Grotesque", "Instrument Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-text: "Instrument Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --fs-small: .875rem;
  --fs-caption: .9375rem;
  --fs-body: 1.0625rem;
  --fs-lead: clamp(1.1875rem, 1.1rem + .4vw, 1.375rem);
  --fs-h3: 1.25rem;
  --fs-h2: clamp(1.625rem, 1.35rem + 1.2vw, 2.125rem);
  --fs-h1: clamp(2.375rem, 1.6rem + 3.6vw, 4.5rem);
  --fs-question: clamp(1.3125rem, 1.05rem + 1.1vw, 1.875rem);

  --measure: 39rem;
  --wide: 72rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --radius: 6px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111412;
    --surface: #181c19;
    --sunk: #0c0e0d;
    --ink: #eef1ec;
    --ink-2: #bcc3be;
    --muted: #8f9691;
    --line: #2a2f2b;
    --line-2: #3d443f;
    --accent: #7fb0f0;
    --accent-ink: #0d1a2b;
    --accent-wash: #1a2738;
    --area-hallucination: #3987e5;
    --area-context: #d95926;
    --area-adaptation: #199e70;
    --area-efficiency: #c98500;
    --area-world: #9085e9;
    --area-other: #8f9691;
    --shadow: none;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #111412;
  --surface: #181c19;
  --sunk: #0c0e0d;
  --ink: #eef1ec;
  --ink-2: #bcc3be;
  --muted: #8f9691;
  --line: #2a2f2b;
  --line-2: #3d443f;
  --accent: #7fb0f0;
  --accent-ink: #0d1a2b;
  --accent-wash: #1a2738;
  --area-hallucination: #3987e5;
  --area-context: #d95926;
  --area-adaptation: #199e70;
  --area-efficiency: #c98500;
  --area-world: #9085e9;
  --area-other: #8f9691;
  --shadow: none;
  color-scheme: dark;
}

/* ---------------------------------------------------------------- base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-kerning: normal;
}
img, video, svg { display: block; max-width: 100%; }
img, video { height: auto; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 650;
  line-height: 1.12;
  letter-spacing: -.012em;
  text-wrap: balance;
  margin: 0;
  font-variation-settings: "opsz" 48;
}
h1 { font-size: var(--fs-h1); line-height: 1.02; letter-spacing: -.028em; font-weight: 700; font-variation-settings: "opsz" 96; }
h2 { font-size: var(--fs-h2); letter-spacing: -.02em; font-variation-settings: "opsz" 72; }
h3 { font-size: var(--fs-h3); font-weight: 620; letter-spacing: -.008em; line-height: 1.25; }
p { margin: 0; text-wrap: pretty; }
p + p { margin-top: .9em; }
ul, ol { margin: 0; padding: 0; }
a {
  color: var(--accent);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .2em;
  text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent);
}
a:hover { text-decoration-color: currentColor; text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--accent-wash); color: var(--ink); }
code, .mono { font-family: var(--font-mono); font-size: .9em; letter-spacing: 0; }
abbr[title] { text-decoration: none; }
hr { border: 0; border-top: 1px solid var(--line); margin: 0; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: var(--gutter); top: -3rem; z-index: 10;
  background: var(--ink); color: var(--bg); padding: .5rem .875rem; border-radius: var(--radius);
  text-decoration: none; font-weight: 600;
}
.skip-link:focus { top: .75rem; }

.wrap { max-width: var(--wide); margin-inline: auto; padding-inline: var(--gutter); }
.measure { max-width: var(--measure); }
.muted { color: var(--muted); }
.stack > * + * { margin-top: var(--stack, 1rem); }

/* ---------------------------------------------------------------- header */
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); }
.site-header .wrap {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  column-gap: 2rem; row-gap: .5rem; padding-block: 1.125rem;
}
.brand {
  font-family: var(--font-display); font-weight: 720; font-size: 1.3125rem; letter-spacing: -.015em;
  color: var(--ink); text-decoration: none; font-variation-settings: "opsz" 36;
  display: inline-flex; align-items: center; gap: .55rem;
}
.brand:hover { color: var(--ink); }
.brand-mark { width: 1.05rem; height: 1.05rem; flex: none; position: relative; top: .05em; }
.site-nav ul { list-style: none; display: flex; flex-wrap: wrap; column-gap: 1.375rem; row-gap: .25rem; }
.site-nav a {
  color: var(--ink-2); text-decoration: none; font-size: .96875rem; font-weight: 500;
  padding-block: .25rem; border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--line-2); }
.site-nav a[aria-current="page"], .site-nav a[aria-current="true"] { color: var(--ink); border-bottom-color: var(--ink); }

/* ---------------------------------------------------------------- page scaffolding */
main { display: block; }
.page-head { padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 3vw, 2.25rem); }
.page-head h1 { max-width: 18ch; }
.page-head .lede { margin-top: 1.25rem; max-width: 36rem; }
.lede { font-size: var(--fs-lead); line-height: 1.5; color: var(--ink-2); }
.breadcrumb { font-size: var(--fs-small); color: var(--muted); margin-bottom: 1.25rem; }
.breadcrumb a { color: var(--ink-2); }
.section { padding-block: clamp(2.25rem, 5vw, 3.75rem); border-top: 1px solid var(--line); }
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .5rem 1.5rem; margin-bottom: 1.75rem; }
.section-head p { color: var(--muted); font-size: var(--fs-caption); max-width: 34rem; }
.more { font-size: var(--fs-caption); font-weight: 550; white-space: nowrap; }

.button {
  display: inline-flex; align-items: center; gap: .5rem; min-height: 2.75rem;
  padding: .625rem 1.125rem; border-radius: var(--radius);
  background: var(--ink); color: var(--bg); text-decoration: none; font-weight: 600; font-size: 1rem;
  border: 1px solid var(--ink);
}
.button:hover { background: color-mix(in srgb, var(--ink) 86%, var(--bg)); color: var(--bg); text-decoration: none; }
.button.secondary { background: transparent; color: var(--ink); border-color: var(--line-2); }
.button.secondary:hover { border-color: var(--ink); background: transparent; color: var(--ink); }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }

/* area dot: the same colour means the same research area everywhere */
.area { display: inline-flex; align-items: center; gap: .5rem; font-size: var(--fs-small); color: var(--ink-2); }
.dot { width: .625rem; height: .625rem; border-radius: 50%; flex: none; background: var(--area-other); }
.dot.hallucination, [data-area="hallucination"] > .dot { background: var(--area-hallucination); }
.dot.context, .dot.in-context { background: var(--area-context); }
.dot.adaptation { background: var(--area-adaptation); }
.dot.efficiency { background: var(--area-efficiency); }
.dot.world, .dot.world-models { background: var(--area-world); }
.dot.other { background: var(--area-other); }

/* ---------------------------------------------------------------- home */
.hero { padding-block: clamp(3rem, 8vw, 6rem) clamp(2.5rem, 6vw, 4rem); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2.5rem; align-items: center; }
@media (min-width: 64rem) { .hero-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 3.5rem; } }
.hero-figure figcaption { max-width: 34rem; }
.hero h1 { max-width: 12ch; font-size: clamp(2.75rem, 1.4rem + 5.6vw, 6.25rem); line-height: .98; letter-spacing: -.034em; }
.hero .lede { margin-top: 1.5rem; max-width: 37rem; }
.hero .access { margin-top: 1rem; max-width: 37rem; color: var(--ink-2); }
.hero .actions { margin-top: 2rem; }

.questions { list-style: none; counter-reset: none; }
.questions li { border-top: 1px solid var(--line); }
.questions li:last-child { border-bottom: 1px solid var(--line); }
.questions a {
  display: grid; grid-template-columns: 1.25rem minmax(0, 1fr); column-gap: 1rem; row-gap: .35rem;
  padding-block: 1.375rem; color: var(--ink); text-decoration: none;
}
.questions .dot { margin-top: .62em; width: .75rem; height: .75rem; }
.questions .q {
  font-family: var(--font-display); font-size: var(--fs-question); line-height: 1.18; font-weight: 560;
  letter-spacing: -.016em; font-variation-settings: "opsz" 60; text-wrap: balance; max-width: 30em;
}
.questions .area-name { grid-column: 2; font-size: var(--fs-caption); color: var(--muted); }
.questions a:hover .q { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: .18em; text-decoration-color: var(--line-2); }
.questions a:hover .area-name { color: var(--ink-2); }

.log { list-style: none; }
.log li {
  display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); column-gap: 1.5rem;
  padding-block: 1.25rem; border-top: 1px solid var(--line);
}
.log li:last-child { border-bottom: 1px solid var(--line); }
.log .when { font-size: var(--fs-small); color: var(--muted); padding-top: .2rem; }
.log .when b { display: block; color: var(--ink-2); font-weight: 600; }
.log h3 { font-size: 1.1875rem; }
.log h3 a { color: var(--ink); text-decoration: none; }
.log h3 a:hover { text-decoration: underline; text-decoration-color: var(--line-2); }
.log p { margin-top: .35rem; color: var(--ink-2); max-width: 40rem; }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 15.5rem), 1fr)); gap: 1.5rem 1.25rem; }
.tile { display: flex; flex-direction: column; gap: .75rem; color: var(--ink); text-decoration: none; min-width: 0; }
.tile .thumb {
  aspect-ratio: 4 / 3; width: 100%; max-width: 100%; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); background: var(--surface);
}
.tile .thumb picture { display: block; width: 100%; height: 100%; }
.tile .thumb img { width: 100%; height: 100%; object-fit: contain; }
.tile .thumb svg { width: 100%; height: 100%; padding: .75rem; }
.tile h2, .tile h3 { font-size: 1.125rem; letter-spacing: -.008em; line-height: 1.25; font-weight: 620; font-variation-settings: "opsz" 36; }
.tile p { font-size: var(--fs-caption); color: var(--ink-2); }
.tile .meta { font-size: var(--fs-small); color: var(--muted); margin-bottom: -.4rem; }
.tile:hover h2, .tile:hover h3 { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: .18em; text-decoration-color: var(--line-2); }

.callout {
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 2rem 3rem; align-items: start;
}
.counts { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.counts li { background: var(--surface); padding: 1rem 1.125rem; }
.counts b { display: block; font-family: var(--font-display); font-size: 2rem; line-height: 1; font-weight: 650; font-variant-numeric: tabular-nums; font-variation-settings: "opsz" 72; }
.counts span { display: block; margin-top: .4rem; font-size: var(--fs-caption); color: var(--ink-2); line-height: 1.35; }

/* ---------------------------------------------------------------- research */
.area-list { list-style: none; display: grid; gap: 0; }
.area-list > li { border-top: 1px solid var(--line); padding-block: 1.75rem; }
.area-list > li:last-child { border-bottom: 1px solid var(--line); }
.area-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 18rem); gap: 1rem 3rem; }
.area-row h2 { font-size: 1.625rem; display: flex; align-items: center; gap: .75rem; }
.area-row h2 a { color: var(--ink); text-decoration: none; }
.area-row h2 a:hover { text-decoration: underline; text-decoration-color: var(--line-2); text-decoration-thickness: 2px; }
.area-row h2 .dot { width: .8rem; height: .8rem; }
.area-row .question { margin-top: .6rem; color: var(--ink-2); font-size: 1.125rem; max-width: 38rem; }
.area-row .facts { font-size: var(--fs-caption); color: var(--muted); list-style: none; display: grid; gap: .3rem; align-content: start; padding-top: .35rem; }
.area-row .facts b { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }

.theme-head { padding-block: clamp(2.5rem, 6vw, 4.25rem) clamp(1.75rem, 3vw, 2.5rem); }
.theme-head .area { margin-bottom: 1rem; font-size: var(--fs-caption); }
.theme-head .area .dot { width: .75rem; height: .75rem; }
.theme-head h1 { max-width: 20ch; font-size: clamp(2.25rem, 1.6rem + 3vw, 3.875rem); }
.theme-head .h1-dot { display: inline-block; width: .3em; height: .3em; margin-right: .3em; vertical-align: .18em; }
.theme-head .question { margin-top: 1.25rem; max-width: 36rem; font-size: var(--fs-lead); line-height: 1.45; color: var(--ink-2); }

.theme-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2.5rem; padding-bottom: clamp(2.5rem, 6vw, 4rem); }
@media (min-width: 62rem) {
  .theme-grid { grid-template-columns: minmax(0, 1fr) 17.5rem; gap: 4rem; }
  .theme-aside { position: sticky; top: 1.5rem; align-self: start; }
}
.prose { max-width: var(--measure); }
.prose > * + * { margin-top: 1rem; }
.prose h2 { font-size: 1.5rem; margin-top: 2.75rem; }
.prose h2:first-child { margin-top: 0; }
.findings { list-style: none; display: grid; gap: 0; }
.findings li { padding-block: 1.125rem; border-top: 1px solid var(--line); }
.findings li:last-child { border-bottom: 1px solid var(--line); }
.findings h3 { font-size: 1.125rem; }
.findings p { margin-top: .35rem; color: var(--ink-2); }
.limits {
  list-style: none; border-left: 3px solid var(--line-2); padding-left: 1.125rem; display: grid; gap: .75rem;
  color: var(--ink-2);
}
.principle {
  font-family: var(--font-display); font-size: 1.5rem; line-height: 1.25; font-weight: 560; letter-spacing: -.015em;
  font-variation-settings: "opsz" 60; color: var(--ink); max-width: 24em; text-wrap: balance;
}
.projects { list-style: none; display: grid; gap: 0; }
.projects li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .25rem 1.25rem; padding-block: .95rem; border-top: 1px solid var(--line); }
.projects li:last-child { border-bottom: 1px solid var(--line); }
.projects h3 { font-size: 1.0625rem; font-family: var(--font-text); font-weight: 600; letter-spacing: 0; }
.projects p { grid-column: 1; color: var(--ink-2); font-size: var(--fs-caption); }
.status { grid-column: 2; grid-row: 1; font-size: var(--fs-small); color: var(--muted); white-space: nowrap; }

.theme-aside { font-size: var(--fs-caption); }
.aside-block + .aside-block { margin-top: 1.75rem; padding-top: 1.75rem; border-top: 1px solid var(--line); }
.aside-block h2 { font-size: 1rem; font-family: var(--font-text); font-weight: 650; letter-spacing: 0; margin-bottom: .75rem; color: var(--ink); }
.aside-block ul { list-style: none; display: grid; gap: .7rem; }
.aside-block li a { font-weight: 550; }
.aside-block .sub { display: block; color: var(--muted); font-size: var(--fs-small); margin-top: .1rem; }
.aside-block .big { font-family: var(--font-display); font-size: 2.25rem; font-weight: 650; line-height: 1; font-variant-numeric: tabular-nums; font-variation-settings: "opsz" 72; }

/* ---------------------------------------------------------------- figures */
.figure { margin: 0; }
.figure .frame {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface);
  overflow: hidden; position: relative; max-width: 100%;
}
.figure .frame.pad { padding: clamp(.75rem, 2.5vw, 1.5rem); }
.figure figcaption { margin-top: .75rem; font-size: var(--fs-caption); color: var(--muted); line-height: 1.5; max-width: 40rem; }
.figure figcaption a { color: var(--ink-2); }
.figure video, .figure img { width: 100%; }
.figure.narrow .frame { max-width: 36rem; }
.figure + .figure { margin-top: 2rem; }
.video-toggle {
  display: inline-flex; align-items: center; gap: .45rem; min-height: 2.25rem; margin-top: .625rem; padding: .35rem .8rem;
  font: 600 .8125rem/1 var(--font-text); color: var(--ink); background: var(--surface);
  border: 1px solid var(--line-2); border-radius: 999px; cursor: pointer;
}
.video-toggle:hover { border-color: var(--ink); }
.video-toggle svg { width: .7rem; height: .7rem; fill: currentColor; }
.video-toggle[hidden] { display: none; }

/* inline SVG figures use these classes so they follow the theme */
.fig { width: 100%; height: auto; font-family: var(--font-text); font-size: 13px; }
.fig text { fill: var(--ink-2); }
.fig .t-ink { fill: var(--ink); }
.fig .t-muted { fill: var(--muted); }
.fig .t-mono { font-family: var(--font-mono); }
.fig .t-strong { font-weight: 650; fill: var(--ink); }
.fig .t-big { font-family: var(--font-display); font-weight: 700; fill: var(--ink); }
.fig .t-accent { fill: var(--accent); }
.fig .l-ink { stroke: var(--ink); fill: none; }
.fig .l-line { stroke: var(--line-2); fill: none; }
.fig .l-muted { stroke: var(--muted); fill: none; }
.fig .l-accent { stroke: var(--accent); fill: none; }
.fig .f-surface { fill: var(--surface); }
.fig .f-sunk { fill: var(--sunk); }
.fig .f-bg { fill: var(--bg); }
.fig .f-ink { fill: var(--ink); }
.fig .f-muted { fill: var(--muted); }
.fig .f-line { fill: var(--line); }
.fig .f-line2 { fill: var(--line-2); }
.fig .f-accent { fill: var(--accent); }
.fig .f-wash { fill: var(--accent-wash); }
.fig .f-world { fill: var(--area-world); }
.fig .f-adapt { fill: var(--area-adaptation); }

/* ---------------------------------------------------------------- lists: papers, tools */
.entries { list-style: none; display: grid; gap: 0; }
.entries > li { padding-block: 1.5rem; border-top: 1px solid var(--line); display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); gap: .5rem 1.5rem; }
.entries > li:last-child { border-bottom: 1px solid var(--line); }
.entries .when { font-size: var(--fs-small); color: var(--muted); padding-top: .2rem; }
.entries .when b { display: block; font-weight: 650; color: var(--ink-2); }
.entries h2, .entries h3 { font-size: 1.25rem; line-height: 1.3; }
.entries h2 a, .entries h3 a { color: var(--ink); text-decoration: none; }
.entries h2 a:hover, .entries h3 a:hover { text-decoration: underline; text-decoration-color: var(--line-2); text-decoration-thickness: 2px; }
.entries .authors { margin-top: .4rem; font-size: var(--fs-caption); color: var(--muted); }
.entries .plain { margin-top: .6rem; color: var(--ink-2); max-width: 42rem; }
.entries .links { margin-top: .75rem; display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; font-size: var(--fs-caption); align-items: center; }
.entries .aka { font-family: var(--font-text); font-weight: 400; font-size: 1rem; color: var(--muted); letter-spacing: 0; }
.repo { font-family: var(--font-mono); font-size: .8125rem; }

.tag {
  display: inline-flex; align-items: center; gap: .4rem; font-size: var(--fs-small); color: var(--ink-2);
  border: 1px solid var(--line-2); border-radius: 4px; padding: .1rem .5rem; line-height: 1.5; white-space: nowrap;
}

/* ---------------------------------------------------------------- explainer */
.article-head { padding-block: clamp(2.5rem, 6vw, 4rem) clamp(1.5rem, 3vw, 2rem); }
.article-head h1 { font-size: clamp(2.125rem, 1.5rem + 3vw, 3.5rem); max-width: 18ch; }
.article-head .dek { margin-top: 1rem; max-width: 34rem; }
.article-head .byline { margin-top: 1.25rem; font-size: var(--fs-small); color: var(--muted); }
.article-body { padding-bottom: clamp(2.5rem, 6vw, 4rem); }
.article-body .figure { max-width: 46rem; margin-bottom: 2.25rem; }
.article-body .prose p { font-size: 1.125rem; line-height: 1.65; }
.article-foot { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); max-width: var(--measure); font-size: var(--fs-caption); color: var(--muted); display: grid; gap: .5rem; }

/* ---------------------------------------------------------------- fellowships */
.facts-row { list-style: none; display: flex; flex-wrap: wrap; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.facts-row li { flex: 1 1 10.5rem; min-width: 0; background: var(--surface); padding: 1rem 1.125rem; }
.facts-row b { display: block; font-weight: 650; font-size: 1.0625rem; color: var(--ink); }
.facts-row span { display: block; margin-top: .25rem; font-size: var(--fs-small); color: var(--ink-2); line-height: 1.4; }

.readiness-key { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); gap: 1rem 2rem; }
.readiness-key b { display: block; font-weight: 650; }
.readiness-key li > span { display: block; color: var(--ink-2); font-size: var(--fs-caption); margin-top: .2rem; }
.readiness-key .n { font-variant-numeric: tabular-nums; color: var(--muted); font-weight: 500; }

.filters { display: grid; gap: 1rem; margin-bottom: 1.5rem; }
.filters[hidden] { display: none; }
.filter-group { border: 0; padding: 0; margin: 0; min-width: 0; }
.filter-group legend { font-size: var(--fs-small); font-weight: 650; color: var(--ink); margin-bottom: .5rem; padding: 0; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip {
  display: inline-flex; align-items: center; gap: .45rem; min-height: 2.25rem; padding: .3rem .8rem;
  font: 500 .9375rem/1.2 var(--font-text); color: var(--ink-2); background: var(--surface);
  border: 1px solid var(--line-2); border-radius: 999px; cursor: pointer;
}
.chip:hover { border-color: var(--ink-2); color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.chip[aria-pressed="true"] .dot { box-shadow: 0 0 0 2px var(--ink), 0 0 0 3px var(--bg); }
.chip .n { font-variant-numeric: tabular-nums; color: var(--muted); }
.chip[aria-pressed="true"] .n { color: inherit; }
.result-count { font-size: var(--fs-caption); color: var(--muted); min-height: 1.5em; }
.reset { font: inherit; font-size: var(--fs-caption); color: var(--accent); background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline; text-underline-offset: .2em; }

.fellow-group + .fellow-group { margin-top: 2.5rem; }
.fellow-group > h3 { display: flex; align-items: center; gap: .65rem; font-size: 1.25rem; }
.fellow-group > .count { margin: .2rem 0 .6rem 1.3rem; font-size: var(--fs-caption); color: var(--muted); }
.fellow-list { list-style: none; }
.fellow {
  display: grid; grid-template-columns: 3rem minmax(0, 1fr); column-gap: 1rem;
  padding-block: 1.125rem; border-top: 1px solid var(--line);
}
.fellow:last-child { border-bottom: 1px solid var(--line); }
.fellow .id { font-variant-numeric: tabular-nums; color: var(--muted); font-size: var(--fs-small); padding-top: .2rem; }
.fellow h4 { font-family: var(--font-text); font-size: 1.0625rem; font-weight: 650; letter-spacing: 0; line-height: 1.35; }
.fellow p { margin-top: .3rem; color: var(--ink-2); font-size: var(--fs-caption); max-width: 44rem; }
.fellow .tags { margin-top: .6rem; display: flex; flex-wrap: wrap; gap: .4rem; }
.fellow[hidden], .fellow-group[hidden] { display: none; }
.empty { padding: 1.5rem; border: 1px dashed var(--line-2); border-radius: var(--radius); color: var(--ink-2); }

.problems { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); gap: 1.75rem 2.5rem; }
.problems h3 { font-size: 1.1875rem; }
.problems p { margin-top: .4rem; color: var(--ink-2); font-size: var(--fs-caption); }
.problems .link { margin-top: .5rem; font-size: var(--fs-small); }

/* ---------------------------------------------------------------- about */
.story { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2rem; align-items: start; }
@media (min-width: 48rem) { .story { grid-template-columns: minmax(0, 1fr) minmax(0, 15rem); gap: 3.5rem; } }
.story blockquote {
  margin: 0; font-family: var(--font-display); font-size: clamp(1.625rem, 1.25rem + 1.6vw, 2.375rem);
  line-height: 1.15; letter-spacing: -.02em; font-weight: 600; font-variation-settings: "opsz" 72; color: var(--ink);
  text-wrap: balance;
}
.story blockquote p::before { content: "\201C"; }
.story blockquote p::after { content: "\201D"; }
.story .attribution { margin-top: .9rem; color: var(--muted); font-size: var(--fs-caption); }
.story .body { margin-top: 1.75rem; max-width: 36rem; color: var(--ink-2); }
.portrait { margin: 0; }
.portrait img {
  width: 100%; max-width: 15rem; aspect-ratio: 1; object-fit: cover; border-radius: 50%;
  box-shadow: 0 0 0 5px var(--bg), 0 0 0 6px var(--line-2);
}
@media (max-width: 47.99rem) { .portrait { order: -1; } .portrait img { max-width: 9rem; } }
.portrait figcaption { margin-top: .9rem; font-size: var(--fs-small); color: var(--muted); max-width: 15rem; }

.two-col { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2rem; }
@media (min-width: 52rem) { .two-col { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 3.5rem; } }
.press { list-style: none; display: grid; gap: 0; }
.press li { padding-block: 1.1rem; border-top: 1px solid var(--line); }
.press li:last-child { border-bottom: 1px solid var(--line); }
.press h3 { font-size: 1.0625rem; font-family: var(--font-text); font-weight: 650; letter-spacing: 0; }
.press .when { font-size: var(--fs-small); color: var(--muted); }
.press p { margin-top: .3rem; color: var(--ink-2); font-size: var(--fs-caption); }
.press .links { margin-top: .4rem; display: flex; gap: 1rem; font-size: var(--fs-small); }
.plain-list { list-style: none; display: grid; gap: .75rem; }
.plain-list li { padding-left: 1.1rem; position: relative; color: var(--ink-2); }
.plain-list li::before { content: ""; position: absolute; left: 0; top: .7em; width: .4rem; height: .4rem; border-radius: 50%; background: var(--line-2); }

.contact-card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 1.25rem 1.375rem; display: grid; gap: .75rem; max-width: 34rem; }
.email-row { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem .75rem; }
.email { font-family: var(--font-mono); font-size: .9375rem; color: var(--ink); user-select: all; -webkit-user-select: all; word-break: break-all; }
.copy {
  font: 600 .8125rem/1 var(--font-text); color: var(--ink); background: var(--bg); border: 1px solid var(--line-2);
  border-radius: 999px; padding: .5rem .8rem; min-height: 2.25rem; cursor: pointer;
}
.copy:hover { border-color: var(--ink); }
.copy[hidden] { display: none; }

/* ---------------------------------------------------------------- footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 0; padding-block: 2.75rem 2rem; background: var(--bg); font-size: var(--fs-caption); color: var(--ink-2); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr)); gap: 2rem 3rem; }
.footer-grid h2 { font-size: .9375rem; font-family: var(--font-text); font-weight: 650; letter-spacing: 0; color: var(--ink); margin-bottom: .75rem; }
.footer-grid ul { list-style: none; display: grid; gap: .45rem; }
.footer-grid a { color: var(--ink-2); text-decoration-color: var(--line-2); }
.footer-grid a:hover { color: var(--ink); }
.footer-about p { max-width: 24rem; }
.footer-grid .brand { font-size: 1.125rem; margin-bottom: .6rem; color: var(--ink); text-decoration: none; }
.footer-base { margin-top: 2.25rem; padding-top: 1.25rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; font-size: var(--fs-small); color: var(--muted); }
.footer-base a { color: var(--muted); }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 52rem) {
  .callout, .area-row { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-about { grid-column: 1 / -1; }
}
@media (max-width: 40rem) {
  .log li, .entries > li { grid-template-columns: minmax(0, 1fr); row-gap: .35rem; }
  .log .when, .entries .when { padding-top: 0; }
  .log .when b, .entries .when b { display: inline; margin-right: .5rem; }
  .fellow { grid-template-columns: 2.25rem minmax(0, 1fr); column-gap: .75rem; }
  .projects li { grid-template-columns: minmax(0, 1fr); }
  .status { grid-column: 1; grid-row: auto; }
  .site-nav ul { column-gap: 1.1rem; }
}

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

@media print {
  .site-header nav, .filters, .video-toggle, .copy, .skip-link { display: none !important; }
  body { background: #fff; color: #000; }
  a { color: #000; }
}