/* Shared stylesheet for jfeldbrugge.github.io */

:root {
  --bg: #fdfcfa;
  --text: #1f2328;
  --muted: #5d636b;
  --rule: #e4e1da;
  --accent: #1d4f91;
  --accent-hover: #0f3466;
  --header-bg: rgba(253, 252, 250, 0.92);
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181c;
    --text: #e6e4df;
    --muted: #a3a7ad;
    --rule: #2e3238;
    --accent: #8ab4f0;
    --accent-hover: #b5d0f7;
    --header-bg: rgba(22, 24, 28, 0.92);
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

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

.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header and navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--header-bg);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--rule);
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.site-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}
.site-name:hover { color: var(--text); text-decoration: none; }
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  font-family: var(--sans);
  font-size: 15px;
}
.site-nav a { color: var(--muted); }
.site-nav a:hover { color: var(--text); text-decoration: none; }
.site-nav a[aria-current="page"] {
  color: var(--text);
  box-shadow: inset 0 -2px 0 var(--accent);
}

main { padding-top: 40px; padding-bottom: 56px; }

h1, h2, h3 { font-weight: 600; line-height: 1.25; scroll-margin-top: 80px; }
h1 { font-size: 34px; margin: 0 0 24px; }
h2 {
  font-size: 24px;
  margin: 44px 0 12px;
  padding-top: 8px;
  border-top: 1px solid var(--rule);
}
h3 { font-size: 19px; margin: 28px 0 8px; }
p { margin: 0 0 16px; }

.lead { font-size: 20px; }
.muted { color: var(--muted); }

/* Homepage */
.intro {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 36px;
  align-items: start;
}
.intro .portrait img { border-radius: 4px; }
.intro .portrait figcaption {
  margin-top: 8px;
  font-family: var(--sans);
  font-size: 14px;
  text-align: center;
}
.role { font-family: var(--sans); font-size: 15px; color: var(--muted); margin-bottom: 20px; }
.role p { margin: 0; }
address, .address { font-style: normal; }
.button-row, .button-row p { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 16px; font-family: var(--sans); font-size: 15px; }
.button-row a {
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 6px 12px;
}
.button-row a:hover { border-color: var(--accent); text-decoration: none; }
.button-row p { margin: 0; }

/* Figures */
figure { margin: 24px 0; }
/* Some figures have transparent backgrounds with black axes; keep them legible in dark mode. */
figure img { background: #fff; }
figure img.framed { border: 2px solid #000; }
.float-right { float: right; width: 40%; margin: 4px 0 16px 28px; }
.float-right figure { margin: 0; }
figcaption { font-size: 15px; color: var(--muted); margin-top: 6px; }
.clear { clear: both; }

/* Publication lists */
.pubs ul { list-style: none; padding: 0; margin: 0; }
.pubs ol { padding: 0 0 0 2.6em; margin: 0; }
.pubs li { margin: 0 0 16px; padding-left: 0; }
.pubs ol li { padding-left: 0.3em; }
.pubs ol li::marker { font-family: var(--sans); font-size: 14px; color: var(--muted); }
.pubs .title { font-weight: 600; }
.pubs .venue { font-style: italic; }
.pubs .links { font-family: var(--sans); font-size: 14px; white-space: nowrap; }

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 20px 0 32px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--muted);
}

@media (max-width: 640px) {
  body { font-size: 17px; }
  .site-header { position: static; }
  h1, h2, h3 { scroll-margin-top: 16px; }
  h1 { font-size: 28px; }
  main { padding-top: 28px; }
  .intro { grid-template-columns: 1fr; gap: 20px; }
  .intro .portrait { max-width: 220px; }
  .float-right { float: none; width: 100%; margin: 20px 0; }
}