/* Design settings: adjust these to change the page's overall appearance. */
:root {
  color-scheme: light;
  --paper: #fcfcfa;
  --ink: #242d2b;
  --muted: #64716f;
  --accent: #176e70;
  --accent-hover: #104e50;
  --rule: #dce3df;
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

::selection { background: #dcece7; }

a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 0.24em;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  top: 0.75rem;
  left: 1rem;
  z-index: 1;
  padding: 0.4rem 0.8rem;
  background: var(--paper);
  transform: translateY(-200%);
}

.skip-link:focus { transform: translateY(0); }

.page-shell {
  width: min(100% - 5rem, 60rem);
  margin-inline: auto;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.6rem 1.3rem;
  border-bottom: 1px solid var(--rule);
}

.site-name {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: -0.04em;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  font-size: 0.9rem;
}

.site-header nav a { color: var(--muted); }
.site-header nav a:hover { color: var(--accent); }

/* Biography and portrait */
.profile {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 12rem;
  align-items: start;
  gap: 5rem;
  padding-block: 3.4rem 4rem;
}

.profile-copy { padding-top: 0.25rem; }

h1 {
  margin: 0 0 0.35rem;
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 2.65rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.role {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.affiliation {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.bio {
  max-width: 60ch;
  margin-block: 1.6rem 1.35rem;
  overflow-wrap: break-word;
}

.bio p { margin: 0 0 0.9rem; }
.bio p:last-child { margin-bottom: 0; }

.profile-links {
  display: flex;
  flex-wrap: wrap;
  column-gap: 1.25rem;
  row-gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.93rem;
}

.profile-links a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  padding-block: 0.3rem;
}

.portrait {
  width: 100%;
  aspect-ratio: 6 / 7;
  overflow: hidden;
  border-radius: 0.6rem;
  background: #e7ebe6;
  border: 1px solid rgb(36 45 43 / 7%);
}

.portrait img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 25%;
  /* Frame the upper body in CSS; the original photo stays untouched. */
  transform: scale(1.5);
  transform-origin: 50% 22%;
}

/* Publications: real paper figures, open rows, and compact bibliographic details. */
.publications { padding-bottom: 2.7rem; }

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  margin-bottom: 0.8rem;
}

h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.8rem;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.035em;
}

.publication {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr);
  align-items: center;
  gap: 2rem;
  padding-block: 1.6rem;
  border-bottom: 1px solid var(--rule);
}

.publication-text-only { grid-template-columns: 1fr; }

.publication-figure {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 8.5rem;
  padding: 0.4rem;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 0.45rem;
  overflow: hidden;
}

.publication-figure:hover { border-color: var(--accent); }

.publication-figure img,
.publication-figure video {
  display: block;
  width: 100%;
  height: auto;
}

.publication-video { position: relative; padding: 0; aspect-ratio: 3 / 2; min-height: 0; }
.publication-video video { height: 100%; object-fit: cover; background: #fff; }

/* Keep the complete widescreen overviews, including their diagrams and labels. */
.publication[aria-labelledby="ht-policy-title"] .publication-video,
.publication[aria-labelledby="dexflex-title"] .publication-video { aspect-ratio: 16 / 9; }

.publication h3 {
  margin: 0 0 0.45rem;
  font-family: var(--serif);
  font-size: 1.18rem;
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.01em;
  overflow-wrap: break-word;
}

.publication h3 a { color: var(--ink); }
.publication h3 a:hover { color: var(--accent); }

.publication-authors,
.publication-venue {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.7;
}

.publication-authors { color: var(--muted); }
.publication-authors strong { color: var(--ink); font-weight: 600; }
.publication-authors sup { font-size: 0.7em; line-height: 0; }
.publication-venue { margin-top: 0.15rem; font-style: italic; }
.publication-venue a { color: var(--muted); }
.publication-venue a:hover { color: var(--accent); }

.publication-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.2rem;
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.87rem;
}

.publication-links a { display: inline-block; padding-block: 0.2rem; }
.publication-note { margin: 0.9rem 0 0; color: var(--muted); font-size: 0.75rem; }

/* Footer */
.site-footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  padding-block: 1.25rem 2rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.8rem;
}

/* On a phone, keep the introduction before the portrait in reading order. */
@media (max-width: 640px) {
  .page-shell { width: calc(100% - 2.5rem); }
  .site-header { flex-wrap: wrap; gap: 0.5rem 1.5rem; padding-block: 1.2rem 1rem; }
  .site-name { font-size: 1.2rem; }
  .site-header nav { gap: 1.1rem; font-size: 0.85rem; }
  .profile {
    grid-template-columns: 1fr;
    gap: 1.8rem;
    padding-block: 2.3rem 2.6rem;
  }
  .profile-copy { padding-top: 0; }
  .portrait { width: 10.5rem; }
  .profile-links { column-gap: 1.1rem; }
  .publications { padding-bottom: 2rem; }
  h2 { font-size: 1.65rem; }
  .publication { grid-template-columns: 1fr; gap: 1rem; padding-block: 1.6rem; }
  .publication-figure { width: min(100%, 19rem); min-height: 0; padding: 0.5rem; }
  .publication-video { padding: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}