/* Shared stylesheet for all pages. */

:root {
  --color-primary: #3070b3;
  --color-primary-dark: #245a91;
  --color-text: #3a3f45;
  --color-muted: #54595f;
  --color-on-primary: #ffffff;
  --color-nav: #ebecef;
  --color-highlight: #fce2b0;
  --color-bg: #ffffff;

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --content-width: 1140px;
  --gutter: 1.25rem;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
}

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

a {
  color: var(--color-primary);
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--color-muted);
}

h1,
h2,
h3 {
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.75em;
}

h1 {
  font-size: 1.75rem;
}

h2 {
  font-size: 1.375rem;
  margin-top: 2em;
}

h1 + h2 {
  margin-top: 1em;
}

p,
address {
  margin: 0 0 1em;
}

.container {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Header */

.site-header {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.site-header .container {
  display: grid;
  /* The empty third column mirrors the logo so the name stays centred. */
  grid-template-columns: 7rem 1fr 7rem;
  grid-template-areas:
    "logo branding ."
    "logo nav .";
  align-items: center;
  gap: 0 1.5rem;
  padding-top: 1.5rem;
  padding-bottom: 0.5rem;
}

.site-header .logo {
  grid-area: logo;
}

.site-header .logo img {
  width: 100%;
}

.site-branding {
  grid-area: branding;
  text-align: center;
}

.site-name {
  margin: 0;
  font-size: clamp(1.5rem, 1rem + 1.5vw, 1.875rem);
  font-weight: 600;
  line-height: 1.2;
  text-wrap: balance;
}

.site-name a {
  color: inherit;
  text-decoration: none;
}

.site-name .aka {
  white-space: nowrap;
}

.site-tagline {
  margin: 0.25rem 0 0;
  color: var(--color-nav);
  text-wrap: balance;
}

/* Navigation (header and footer) */

.nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav a {
  display: block;
  padding: 0.75rem 0;
  color: var(--color-nav);
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--color-highlight);
}

.nav a[aria-current="page"] {
  color: var(--color-on-primary);
  font-weight: 600;
}

.site-header .nav {
  grid-area: nav;
}

/* Main content */

main {
  flex: 1;
  padding: 2.5rem 0 3rem;
}

.intro {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.intro-compact {
  grid-template-columns: 1fr 13rem;
}

.intro-compact h2:first-child {
  margin-top: 1em;
}

.portrait {
  border-radius: 0.5rem;
}

ul.arrows {
  margin: 0 0 1em;
  padding-left: 1.5em;
}

ul.arrows li {
  margin-bottom: 0.35em;
}

ul.arrows li::marker {
  content: "▷  ";
  color: var(--color-primary);
}

ul.two-columns {
  columns: 2;
  column-gap: 3rem;
}

ul.two-columns li {
  break-inside: avoid;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, max-content));
  gap: 1.5rem 4rem;
}

address {
  font-style: normal;
}

/* Longer running text, e.g. the legal pages */

.prose > :not(h1) {
  max-width: 75ch;
}

.prose .updated {
  margin-top: 2.5em;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.prose h3 {
  color: var(--color-text);
  font-size: 1.0625rem;
  margin: 1.5em 0 0.5em;
}

/* Dated entries, e.g. on the CV */

ol.timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}

ol.timeline li {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

ol.timeline .date {
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.contact dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.25rem 1.25rem;
  margin: 0;
}

.contact dt {
  color: var(--color-muted);
  font-weight: 600;
}

.contact dd {
  margin: 0;
}

/* Publication lists */

.pubs {
  margin: 0;
  padding-left: 2.25rem;
}

ul.pubs {
  padding-left: 0;
  list-style: none;
}

.pubs li {
  margin-bottom: 1.25rem;
  padding-left: 0.25rem;
}

.pubs li::marker {
  color: var(--color-muted);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.pub-title {
  font-weight: 600;
}

/* Footer */

.site-footer {
  background: var(--color-primary);
}

.site-footer .nav a {
  font-size: 0.9375rem;
}

/* Small screens */

@media (max-width: 767px) {
  body {
    font-size: 1rem;
  }

  .site-header .container {
    grid-template-columns: 1fr;
    grid-template-areas:
      "branding"
      "nav";
    gap: 0.75rem;
    padding-top: 1.25rem;
    padding-bottom: 0.25rem;
  }

  .site-header .logo {
    display: none;
  }

  .site-name .aka {
    display: block;
    font-size: 0.7em;
    font-weight: 400;
    color: var(--color-nav);
  }

  .site-tagline {
    font-size: 0.875rem;
  }

  .site-header .nav {
    border-top: 1px solid rgb(255 255 255 / 0.25);
  }

  .nav ul {
    gap: 0 1.25rem;
  }

  .intro,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  ul.two-columns {
    columns: 1;
  }

  ol.timeline li {
    grid-template-columns: 1fr;
    gap: 0;
    margin-bottom: 1.25rem;
  }

  ol.timeline .date {
    font-size: 0.875rem;
  }

  .portrait {
    max-width: 16rem;
  }
}