.container {
  width: min(var(--content-width), calc(100% - 64px));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--color-rule);
}

.header-inner {
  min-height: 72px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-5);
}

.identity, nav a {
  text-decoration: none;
  font-size: var(--text-small);
}

.identity {
  font-weight: 600;
  color: var(--color-ink);
  white-space: nowrap;
}

.monogram {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 400;
  margin-right: var(--space-3);
}

.monogram span {
  color: #a2b7c0;
  padding-left: var(--space-2);
}

nav {
  display: flex;
  gap: var(--space-5);
  align-items: center;
}

nav a {
  padding-block: var(--space-3);
  color: var(--color-muted);
}

nav a[aria-current="page"] {
  color: var(--color-ink);
  text-decoration: underline;
  text-underline-offset: 7px;
}

nav .contact-link {
  color: var(--color-accent);
}

.home-heading, .page-heading {
  margin-block: var(--space-7) var(--space-6);
}

.home-heading .lead {
  font-size: 1rem;
}

.hero-photo {
  width: 100%;
  height: 250px;
  object-fit: cover;
  /* Preserve distant peaks and foreground tracks in the supplied panorama. */
  object-position: 50% 56%;
}

.introduction {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: var(--space-7);
  margin-block: var(--space-7);
  align-items: start;
}

.introduction h2 {
  font-size: 1.65rem;
  text-wrap: wrap;
  margin-bottom: var(--space-4);
}

.introduction p {
  font-size: 0.9375rem;
}

.introduction a {
  display: inline-block;
  margin-top: var(--space-3);
  font-size: var(--text-small);
}

.portrait-photo {
  width: 180px;
  height: 218px;
  object-fit: cover;
  /* The face is on the right of the original landscape photograph. */
  object-position: 69% center;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.section-heading a, .section-count {
  font-size: var(--text-small);
  white-space: nowrap;
}

.section-count {
  color: var(--color-muted);
}

.home-research {
  margin-bottom: var(--space-7);
}

.programme-link {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) max-content 16px;
  gap: var(--space-4);
  align-items: baseline;
  border-top: 1px solid var(--color-rule);
  padding-block: var(--space-3);
  text-decoration: none;
}

.programme-link:last-child {
  border-bottom: 1px solid var(--color-rule);
}

.programme-link h3 {
  color: var(--color-ink);
  font-size: 0.9375rem;
}

.programme-summary {
  white-space: nowrap;
  text-align: right;
}

.programme-summary, .programme-number {
  color: var(--color-muted);
  font-size: var(--text-small);
}

.download-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  margin-top: var(--space-5);
  font-size: var(--text-small);
}

.download-links > span {
  color: var(--color-muted);
}

.research-programme {
  display: grid;
  grid-template-columns: 0.95fr 1.2fr;
  gap: var(--space-6);
  padding-block: var(--space-5);
  border-top: 1px solid var(--color-rule);
}

.programme-description > p:not(.eyebrow) {
  margin-top: var(--space-3);
  font-size: 0.9375rem;
}

.project p {
  margin-top: var(--space-1);
  font-size: 0.9375rem;
}

.project + .project {
  margin-top: var(--space-4);
}

.research-intro {
  margin-top: var(--space-3);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: baseline;
}

.footer-links a { white-space: nowrap; }

.footer-details {
  display: grid;
  gap: var(--space-1);
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  scroll-margin-top: var(--space-5);
}

.footer-contact > span { white-space: nowrap; }

.profile-link {
  font-size: var(--text-small);
  margin-top: var(--space-3);
}

.personal-projects {
  min-height: 30vh;
  border-top: 1px solid var(--color-rule);
  padding-top: var(--space-5);
}

.project a {
  font-size: var(--text-small);
}

.site-footer {
  border-top: 1px solid var(--color-rule);
  margin-top: var(--space-8);
  padding-block: var(--space-5) var(--space-6);
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: 0.75rem;
  color: var(--color-muted);
}

.footer-note {
  display: block;
  margin-top: var(--space-1);
}

/* At this width neither navigation nor two-column prose has comfortable room. */
@media (max-width: 720px) {
  .container {
    width: calc(100% - 40px);
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 0;
    padding-top: var(--space-3);
  }

  nav {
    width: 100%;
    justify-content: space-between;
    gap: var(--space-2);
    flex-wrap: wrap;
  }

  .home-heading, .page-heading {
    margin-top: var(--space-6);
  }

  .hero-photo {
    height: 190px;
  }

  .introduction {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: var(--space-5);
    margin-block: var(--space-6);
  }

  .portrait-photo {
    width: 150px;
    height: 190px;
  }

  .programme-link {
    grid-template-columns: 24px 1fr 16px;
    gap: var(--space-3);
  }

  .programme-summary {
    grid-column: 2;
    grid-row: 2;
    margin-top: -8px;
    text-align: left;
  }

  .programme-link > span:last-child {
    grid-column: 3;
    grid-row: 1;
  }

  .research-programme {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

.site-footer {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  nav {
    display: grid;
    grid-template-columns: repeat(3, max-content);
    gap: 0 var(--space-3);
  }

  .introduction {
    grid-template-columns: 1fr;
  }

  .portrait-photo {
    width: 170px;
    height: 190px;
  }

  .section-heading {
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  h2 {
    font-size: 1.6rem;
  }
}

/* Header utilities share the title line; prose retains the full content width. */
.heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}
.heading-tools {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-1);
  font-size: var(--text-small);
}
.bibliography-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.page-intro { margin-top: var(--space-3); }
@media (max-width: 720px) {
  /* Keep the title and description together before ancillary download links. */
  .page-heading:has(.heading-row) { display: flex; flex-direction: column; }
  .heading-row { display: contents; }
  .heading-row h1 { order: 1; }
  .page-heading:has(.heading-row) > .lead { order: 2; }
  .page-heading:has(.heading-row) > .page-intro { order: 3; }
  .heading-tools { order: 4; margin-top: var(--space-3); flex-direction: row; align-items: flex-start; gap: var(--space-3); flex-wrap: wrap; }
  .heading-tools .utility-detail { display: none; }
}

/* Compact mobile header; the menu remains in document flow when expanded. */
.mobile-header-actions, .mobile-brand-label { display: none; }
@media (max-width: 720px) {
  .header-inner { min-height: 60px; padding-block: 6px; gap: 0; }
  .identity-name, .monogram span { display: none; }
  .mobile-brand-label { display: block; }
  .monogram { margin: 0; font-size: 1.25rem; }
  .mobile-header-actions { display: flex; align-items: center; gap: 4px; }
  .mobile-header-actions a, .nav-toggle { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; padding: 0; border: 0; }
  #main-navigation { display: flex; flex-direction: column; align-items: stretch; gap: 0; padding-block: 8px; width: 100%; }
  #main-navigation a { padding: 10px 0; }
  #main-navigation .contact-link { display: none; }
  .home-heading h1 { font-size: 1.8rem; }
  .home-heading { margin-block: 24px; }
  .hero-photo { height: 120px; }
  .portrait-figure { display: none; }
  .introduction { grid-template-columns: 1fr; margin-block: 24px; }
}