/* Oliver Bush — academic site
   Palette and type are defined once here. */

:root {
  --bg:        #fdfcfa;
  --bg-soft:   #f5f3ee;
  --rule:      #e2ded4;
  --ink:       #1b1a18;
  --ink-soft:  #55524c;
  --ink-faint: #7d7a72;
  --accent:    #2d4a6b;
  --maxw:      1060px;
  --measure:   40rem;
}
:root {
  --accent-dk: #1c3049;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #16171a;
    --bg-soft:   #1e2024;
    --rule:      #32353b;
    --ink:       #e8e6e1;
    --ink-soft:  #b3afa7;
    --ink-faint: #8a867e;
    --accent:    #9cc0e4;
    --accent-dk: #c2d8ef;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Source Serif 4", "Iowan Old Style", Charter, Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

@media (max-width: 640px) { body { font-size: 17px; } }

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(45,74,107,.28); }
a:hover { border-bottom-color: currentColor; }
@media (prefers-color-scheme: dark) { a { border-bottom-color: rgba(156,192,228,.35); } }

img { max-width: 100%; display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: 24px; }

/* "narrow" keeps the left edge flush with the rest of the page and only
   constrains the measure of the running text. */
.narrow > p,
.narrow > .lede,
.narrow > dl,
.narrow > .papers,
.narrow > .table-scroll,
.narrow > .page-title,
.narrow > .meta { max-width: 44rem; }

/* ---------- header ---------- */

.site-head {
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
}
.site-head .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 28px;
  padding-block: 20px 18px;
}
.brand {
  font-size: 1.06rem;
  letter-spacing: .055em;
  text-transform: uppercase;
  color: var(--ink);
  border: 0;
  font-weight: 600;
}
.brand:hover { color: var(--accent); }

nav.main { display: flex; flex-wrap: wrap; gap: 22px; }
nav.main a {
  font-size: .93rem;
  letter-spacing: .045em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border: 0;
  padding-bottom: 2px;
}
nav.main a:hover { color: var(--accent); }
nav.main a[aria-current="page"] {
  color: var(--ink);
  border-bottom: 1.5px solid var(--accent);
}

/* ---------- type ---------- */

h1, h2, h3 { line-height: 1.22; font-weight: 600; margin: 0; }

h1.name {
  font-size: clamp(2.1rem, 5.4vw, 3rem);
  letter-spacing: -.012em;
  margin-bottom: .28rem;
}
h1.page-title {
  font-size: clamp(1.8rem, 4.2vw, 2.3rem);
  letter-spacing: -.01em;
  margin-bottom: 1.1rem;
}
.role {
  font-size: clamp(1.06rem, 2.4vw, 1.2rem);
  color: var(--ink-soft);
  margin: 0 0 .9rem;
  font-style: italic;
}
.affil {
  font-size: .96rem;
  color: var(--ink-faint);
  margin: 0;
  line-height: 1.5;
}

h2.section {
  font-size: .87rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 600;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 1.5rem;
}

.lede {
  font-size: 1.1em;
  color: var(--ink);
}

p { margin: 0 0 1.05em; }
p:last-child { margin-bottom: 0; }

/* ---------- layout blocks ---------- */

section { padding-block: 3.1rem; }
section + section { border-top: 1px solid var(--rule); }
@media (max-width: 640px) { section { padding-block: 2.4rem; } }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 48px;
  align-items: start;
  padding-block: 3.4rem 3.1rem;
}
@media (max-width: 780px) {
  .hero { grid-template-columns: 1fr; gap: 28px; padding-block: 2.4rem; }
  .portrait { max-width: 200px; order: -1; margin: 0; }
}
.portrait { margin: 0; }
.portrait img {
  width: 100%;
  height: auto;
  border-radius: 3px;
  filter: saturate(.94);
}
.portrait figcaption {
  font-size: .78rem;
  color: var(--ink-faint);
  margin-top: .5rem;
}

/* ---------- buttons ---------- */

.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 1.6rem; }
.btn {
  display: inline-block;
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: .46rem .95rem;
  font-size: .88rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: transparent;
}
.btn:hover { border-color: var(--accent); color: var(--accent); background: var(--bg-soft); }
.btn.primary { border-color: var(--accent); color: var(--accent); }

/* ---------- paper entries ---------- */

.papers { display: flex; flex-direction: column; gap: 2.3rem; }
.papers.tight { gap: 1.5rem; }

.paper .kicker {
  font-size: .74rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: .34rem;
}
.paper h3 {
  font-size: 1.16rem;
  margin-bottom: .3rem;
  max-width: var(--measure);
}
.paper h3 a { color: var(--ink); border: 0; }
.paper h3 a:hover { color: var(--accent); }
.paper .meta {
  font-size: .93rem;
  color: var(--ink-soft);
  margin-bottom: .55rem;
}
.paper .meta .status {
  color: var(--ink);
  font-style: italic;
}
.paper .abstract {
  max-width: var(--measure);
  font-size: .96rem;
  color: var(--ink-soft);
  margin-bottom: .6rem;
}
.paper .links {
  font-size: .89rem;
  letter-spacing: .02em;
}
.paper .links a + a::before {
  content: "·";
  color: var(--ink-faint);
  margin: 0 .5rem;
  border: 0;
  display: inline-block;
}

/* selected-research cards on the home page */
.selected { display: grid; gap: 1.7rem; }
.selected .paper {
  border-left: 2px solid var(--rule);
  padding-left: 1.15rem;
}
.selected .paper:hover { border-left-color: var(--accent); }

/* ---------- themes ---------- */

.themes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
@media (max-width: 780px) { .themes { grid-template-columns: 1fr; gap: 1.5rem; } }
.themes h3 { font-size: 1.02rem; margin-bottom: .4rem; }
.themes p { font-size: .95rem; color: var(--ink-soft); }

/* ---------- tables ---------- */

.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; padding: .62rem 1rem .62rem 0; vertical-align: top; border-bottom: 1px solid var(--rule); }
th { font-weight: 600; color: var(--ink-faint); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
td.year, td.ch { white-space: nowrap; color: var(--ink-faint); width: 1%; padding-right: 1.6rem; }

/* ---------- contact ---------- */

.contact dl { display: grid; grid-template-columns: max-content 1fr; gap: .55rem 1.8rem; margin: 0; font-size: .97rem; }
.contact dt { color: var(--ink-faint); font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; padding-top: .18em; }
.contact dd { margin: 0; }
@media (max-width: 520px) { .contact dl { grid-template-columns: 1fr; gap: .1rem 0; } .contact dd { margin-bottom: .8rem; } }

/* ---------- cv embed ---------- */

.cv-embed {
  width: 100%;
  height: min(84vh, 1000px);
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--bg-soft);
}
@media (max-width: 780px) { .cv-embed { display: none; } }
.cv-embed-note { display: none; font-size: .95rem; color: var(--ink-soft); }
@media (max-width: 780px) { .cv-embed-note { display: block; } }
.embed-fallback { margin-top: .8rem; font-size: .88rem; color: var(--ink-faint); }
@media (max-width: 780px) { .embed-fallback { display: none; } }

/* ---------- footer ---------- */

.site-foot {
  border-top: 1px solid var(--rule);
  margin-top: 0;
  padding-block: 1.8rem 2.6rem;
  font-size: .86rem;
  color: var(--ink-faint);
}
.site-foot a { color: var(--ink-faint); }
.site-foot a:hover { color: var(--accent); }

ul.plain { margin: 0; padding-left: 1.15rem; }
ul.plain li { margin-bottom: .45rem; }

.note {
  font-size: .9rem;
  color: var(--ink-soft);
  background: var(--bg-soft);
  border-left: 2px solid var(--rule);
  padding: .8rem 1rem;
  margin-top: 1.6rem;
  max-width: var(--measure);
}