/* ------------------------------------------------------------------
   Noémi Kreif — personal academic site
   Design tokens
------------------------------------------------------------------ */
:root {
  --bg: #faf8f4;
  --bg-elev: #ffffff;
  --ink: #1d1c1a;
  --ink-2: #4a4843;
  --ink-3: #7c7972;
  --line: #e6e1d8;
  --accent: #2f5d50;        /* deep green, echoes the portrait */
  --accent-ink: #244a40;
  --accent-soft: #e6efe9;
  --highlight: #c9863a;     /* warm ochre for small marks */
  --max: 1080px;
  --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(29, 28, 26, .04), 0 8px 28px rgba(29, 28, 26, .06);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15171a;
    --bg-elev: #1d2024;
    --ink: #ecebe6;
    --ink-2: #c0bdb5;
    --ink-3: #8d8a82;
    --line: #2c3036;
    --accent: #8dc3ae;
    --accent-ink: #a9d6c4;
    --accent-soft: #1f2d28;
    --highlight: #e0a45c;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 28px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}

/* ------------------------------------------------------------------
   Base
------------------------------------------------------------------ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  font-feature-settings: "kern", "liga", "calt";
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; text-underline-offset: .15em; }
a:hover { text-decoration: underline; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -.01em;
  margin: 0 0 .5em;
  color: var(--ink);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }
h3 { font-size: 1.3rem; }
.lede { font-size: 1.2rem; color: var(--ink-2); max-width: 62ch; }
.muted { color: var(--ink-3); }
.small { font-size: .92rem; }

.wrap { max-width: var(--max); margin: 0 auto; padding-inline: clamp(16px, 4vw, 40px); }
section { padding-block: clamp(2.5rem, 6vw, 4.5rem); }
section + section { border-top: 1px solid var(--line); }

.eyebrow {
  font-family: var(--sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .9rem;
  display: flex; align-items: center; gap: .6rem;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--highlight); border-radius: 2px; }

/* ------------------------------------------------------------------
   Header / nav
------------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 64px; flex-wrap: wrap;
}
.brand {
  font-family: var(--serif); font-size: 1.25rem; font-weight: 500;
  color: var(--ink); letter-spacing: -.01em; white-space: nowrap;
}
.brand:hover { text-decoration: none; color: var(--accent); }
.nav { display: flex; gap: clamp(.6rem, 2vw, 1.6rem); flex-wrap: wrap; }
.nav a {
  color: var(--ink-2); font-size: .95rem; font-weight: 500;
  padding: .35rem 0; border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--ink); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--highlight); }

/* ------------------------------------------------------------------
   Hero
------------------------------------------------------------------ */
.hero { padding-block: clamp(3rem, 8vw, 6rem) clamp(2.5rem, 6vw, 4.5rem); }
.hero .wrap {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.hero h1 { margin-bottom: .35em; }
.hero .title { font-family: var(--serif); font-size: 1.25rem; color: var(--ink-2); margin-bottom: 1.4rem; }
.hero .title span { color: var(--ink-3); }
.portrait {
  position: relative; justify-self: end; width: min(100%, 360px);
}
.portrait img {
  width: 100%; height: auto; aspect-ratio: 1; object-fit: cover;
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.portrait::after {
  content: ""; position: absolute; inset: 14px -14px -14px 14px;
  border-radius: var(--radius); border: 1px solid var(--line); z-index: -1;
}
.links { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1.4rem; }
.pill {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .45rem .85rem; border-radius: 999px;
  border: 1px solid var(--line); background: var(--bg-elev);
  color: var(--ink-2); font-size: .9rem; font-weight: 500;
  transition: border-color .15s, color .15s, transform .15s;
}
.pill:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.pill svg { width: 15px; height: 15px; fill: currentColor; }
.pill.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.pill.primary:hover { background: var(--accent-ink); color: #fff; }

/* ------------------------------------------------------------------
   Cards / grids
------------------------------------------------------------------ */
.grid { display: grid; gap: 1.2rem; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.5rem;
  box-shadow: var(--shadow);
}
.card h3 { margin-bottom: .5rem; }
.card p:last-child { margin-bottom: 0; }
.card .num {
  font-family: var(--serif); font-size: 1rem; color: var(--highlight);
  margin-bottom: .6rem; display: block;
}

/* Two-column section layout: sticky heading on the left */
.split { display: grid; grid-template-columns: 260px 1fr; gap: clamp(1.5rem, 5vw, 4rem); align-items: start; }
.split > .side { position: sticky; top: 84px; }
.split > .side p { color: var(--ink-2); font-size: .98rem; }

/* ------------------------------------------------------------------
   Publications
------------------------------------------------------------------ */
.pub-list { list-style: none; padding: 0; margin: 0; }
.pub {
  padding: 1.1rem 0; border-bottom: 1px solid var(--line);
  display: grid; grid-template-columns: 3.4rem 1fr; gap: 1rem;
}
.pub:last-child { border-bottom: 0; }
.pub .year { font-family: var(--serif); color: var(--ink-3); font-size: 1rem; padding-top: .15rem; }
.pub .ptitle { font-family: var(--serif); font-size: 1.15rem; line-height: 1.3; margin: 0 0 .3rem; }
.pub .ptitle a { color: var(--ink); }
.pub .ptitle a:hover { color: var(--accent); }
.pub .authors { color: var(--ink-2); font-size: .95rem; margin: 0 0 .2rem; }
.pub .authors b { font-weight: 600; color: var(--ink); }
.pub .venue { color: var(--ink-3); font-size: .92rem; margin: 0; font-style: italic; }
.pub .venue .tag {
  font-style: normal; font-size: .72rem; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; color: var(--accent); background: var(--accent-soft);
  padding: .15rem .5rem; border-radius: 6px; margin-left: .5rem; vertical-align: middle;
}
.pub-actions { display: flex; gap: .6rem; margin-top: .45rem; flex-wrap: wrap; }
.pub-actions a { font-size: .85rem; font-weight: 500; }

.pub .takeaway { color: var(--ink-2); font-size: .95rem; margin: .45rem 0 0; padding-left: .7rem; border-left: 2px solid var(--accent-soft); }
.pub-actions a {
  display: inline-block; padding: .1rem .55rem; border-radius: 999px;
  border: 1px solid var(--line); background: var(--bg-elev); color: var(--ink-2);
}
.pub-actions a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
sup.trainee { color: var(--highlight); font-size: .7em; margin-left: .05em; }
.topic-filter { display: flex; gap: .45rem; flex-wrap: wrap; align-items: center; margin: -1rem 0 1rem; }
.topic-filter .filter-label { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin-right: .2rem; }
.chip {
  font: inherit; font-size: .85rem; padding: .3rem .75rem; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: var(--bg-elev); color: var(--ink-2);
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.legend { font-size: .88rem; color: var(--ink-3); margin: 0 0 1rem; }
.pub-nav { display: flex; gap: .5rem; flex-wrap: wrap; margin: 1.2rem 0 2rem; }
.pub-nav a { font-size: .9rem; padding: .35rem .8rem; border-radius: 999px; border: 1px solid var(--line); color: var(--ink-2); background: var(--bg-elev); }
.pub-nav a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.stat-row { display: flex; gap: 2.5rem; flex-wrap: wrap; margin-top: 1.5rem; }
.stat b { display: block; font-family: var(--serif); font-size: 1.9rem; font-weight: 500; line-height: 1; }
.stat span { color: var(--ink-3); font-size: .9rem; }

/* ------------------------------------------------------------------
   Timeline (CV)
------------------------------------------------------------------ */
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li {
  display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem;
  padding: .8rem 0; border-bottom: 1px solid var(--line);
}
.timeline li:last-child { border-bottom: 0; }
.timeline .when { color: var(--ink-3); font-variant-numeric: tabular-nums; font-size: .95rem; padding-top: .1rem; }
.timeline .what { margin: 0; }
.timeline .what b { font-weight: 600; }
.timeline .what .org { color: var(--ink-2); display: block; }

.grant { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.grant:last-child { border-bottom: 0; }
.grant .ptitle { font-family: var(--serif); font-size: 1.12rem; margin: 0 0 .25rem; }
.grant .meta { color: var(--ink-3); font-size: .92rem; margin: 0; }
.grant .role { color: var(--accent); font-weight: 600; font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; }

/* Simple prose lists */
.prose ul { padding-left: 1.2rem; }
.prose li { margin-bottom: .45rem; }
.prose li::marker { color: var(--highlight); }

/* ------------------------------------------------------------------
   Footer
------------------------------------------------------------------ */
.site-footer { border-top: 1px solid var(--line); padding-block: 2.5rem; color: var(--ink-3); font-size: .9rem; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.site-footer a { color: var(--ink-2); }

/* ------------------------------------------------------------------
   Responsive
------------------------------------------------------------------ */
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .portrait { justify-self: start; width: min(70%, 300px); order: -1; }
  .grid.cols-3 { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
  .split > .side { position: static; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  .pub { grid-template-columns: 1fr; gap: .2rem; }
  .timeline li { grid-template-columns: 1fr; gap: .1rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .pill { transition: none; } }

/* ------------------------------------------------------------------
   Citation lists (filled by scripts/build.py)
------------------------------------------------------------------ */
.cite-label, .examples-label { margin-bottom: .3rem; }
.cite-list { padding-left: 1.2rem; margin: 0; font-size: .92rem; color: var(--ink-2); }
.cite-list li { margin-bottom: .55rem; }
.cite-list li::marker { color: var(--highlight); }
.cite-list a { color: var(--ink); }
.cite-list a:hover { color: var(--accent); }
.cite-list b { font-weight: 600; color: var(--ink); }
.examples { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.examples li { padding: .6rem 0; border-bottom: 1px solid var(--line); font-size: .92rem; line-height: 1.4; }
.examples li:last-child { border-bottom: 0; padding-bottom: 0; }
.examples a { color: var(--ink); font-family: var(--serif); font-size: 1rem; }
.examples a:hover { color: var(--accent); }
.examples .cite { display: block; color: var(--ink-3); font-size: .85rem; margin-top: .15rem; }

/* ------------------------------------------------------------------
   Method sketches (inline SVG)
------------------------------------------------------------------ */
.sketch { display: block; width: 100%; height: auto; }
.card .sketch { max-width: 250px; margin: -.25rem 0 1rem; }
.side .sketch { max-width: 230px; margin-top: 1.1rem; }
.sketch text { font-family: var(--sans); }

/* ------------------------------------------------------------------
   Affiliations strip and photos
------------------------------------------------------------------ */
section.slim { padding-block: 1.8rem 2.2rem; }
.logos {
  list-style: none; padding: 0; margin: .4rem 0 0;
  display: flex; flex-wrap: wrap; align-items: center; gap: 1.2rem 1.6rem;
}
.logos img {
  display: block; height: 32px; width: auto; max-width: 180px;
  filter: var(--logo-filter, grayscale(1)); opacity: .68;
  transition: opacity .2s, filter .2s;
}
.logos li:hover img { opacity: 1; filter: var(--logo-filter-hover, none); }
.logos .logo-uw { height: 15px; max-width: 200px; }
.logos .logo-ceu { height: 42px; }
.logos .logo-berkeley { height: 26px; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --logo-filter: grayscale(1) invert(1); --logo-filter-hover: grayscale(1) invert(1); }
}
:root[data-theme="dark"] { --logo-filter: grayscale(1) invert(1); --logo-filter-hover: grayscale(1) invert(1); }

.photo-band { padding-block: 0 clamp(2.5rem, 6vw, 4.5rem); }
section + .photo-band { border-top: 0; }
.photo-band + section { border-top: 1px solid var(--line); }
figure.photo-wide { margin: 0; }
figure.photo-wide img { width: 100%; height: auto; border-radius: var(--radius); box-shadow: var(--shadow); }
figcaption { font-size: .85rem; color: var(--ink-3); margin-top: .6rem; }
figure.photo-small { margin: 1.2rem 0 0; max-width: 240px; }
figure.photo-small img { width: 100%; height: auto; border-radius: 10px; box-shadow: var(--shadow); }
figure.photo-small figcaption { font-size: .8rem; margin-top: .4rem; }

/* quick links under the hero, and dated notes */
.quick-links { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; margin: 1rem 0 0; font-size: .92rem; }
.quick-links a { color: var(--ink-2); border-bottom: 1px solid var(--line); }
.quick-links a:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }
.dated { font-family: var(--sans); font-size: .8rem; font-weight: 400; color: var(--ink-3); }
.view-switch { margin-top: .2rem; }
.side-note { color: var(--ink-3); font-size: .9rem; margin: .4rem 0 0; }
button.copy {
  font: inherit; font-family: var(--sans); font-size: .75rem; font-weight: 500; margin-left: .5rem; vertical-align: middle;
  padding: .15rem .6rem; border-radius: 999px; border: 1px solid var(--line); background: var(--bg-elev); color: var(--ink-2); cursor: pointer;
}
button.copy:hover { border-color: var(--accent); color: var(--accent); }

/* Front page "Now" cards */
.now-list { list-style: none; padding: 0; margin: 0; }
.now-list li { padding: .6rem 0; border-bottom: 1px solid var(--line); font-size: .93rem; line-height: 1.45; color: var(--ink-2); }
.now-list li:last-child { border-bottom: 0; }
.now-list .when { display: block; font-size: .78rem; letter-spacing: .04em; text-transform: uppercase; color: var(--highlight); margin-bottom: .15rem; }
.now-list b { color: var(--ink); font-weight: 600; }
.now-list .org { display: block; color: var(--ink-3); font-size: .88rem; margin-top: .1rem; }
@media (max-width: 860px) { .now-grid { grid-template-columns: 1fr; } }

/* Photos at the bottom of the home page */
#photos { padding-top: clamp(2.5rem, 6vw, 4.5rem); border-top: 1px solid var(--line); }
.photo-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin-top: 1.4rem; }
figure.photo-pair-item { margin: 0; }
figure.photo-pair-item img { width: 100%; height: auto; border-radius: var(--radius); box-shadow: var(--shadow); }
@media (max-width: 700px) { .photo-pair { grid-template-columns: 1fr; } }