/* Site-wide details */
:root {
  --ink: #172033;
  --muted: #62708a;
  --line: #dce3ee;
  --surface: #f7f9fc;
  --page: #ffffff;
  --card: #ffffff;
  --blue: #2165d7;
  --violet: #7651d3;
  --teal: #0e8b85;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --ink: #ecf2ff;
  --muted: #aab8cf;
  --line: #2a3953;
  --surface: #151f31;
  --page: #0c1320;
  --card: #111b2c;
  --blue: #77a7ff;
  --violet: #b49aff;
  --teal: #48c9bf;
}

body {
  background: var(--page);
  color: var(--ink);
}

body .navbar {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--page) 94%, transparent) !important;
}

body .navbar .navbar-brand,
body .navbar .nav-link,
body .navbar .nav-link.active,
body .navbar .nav-link:hover,
body .quarto-title,
body h1, body h2, body h3 {
  color: var(--ink);
}

body .navbar .nav-link { color: var(--muted); }
body a { color: var(--blue); }

.theme-toggle {
  position: fixed;
  z-index: 1035;
  right: 1.15rem;
  bottom: 1.15rem;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .58rem .8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  box-shadow: 0 8px 24px rgb(15 23 42 / 16%);
  color: var(--ink);
  font: 650 .78rem/1 system-ui, sans-serif;
  letter-spacing: .02em;
}

.theme-toggle:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-1px);
}

.theme-toggle-icon { font-size: 1rem; line-height: 1; }

/* About */
.about-contents {
  max-width: 860px;
  margin: 0 auto;
  text-align: left !important;
}

.about-intro-note {
  margin: 2rem 0 3.25rem;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--blue);
  background: var(--surface);
  color: var(--ink);
  font-size: 1.05rem;
}

.about-intro-note span {
  display: block;
  margin-bottom: .2rem;
  color: var(--blue);
  font-size: .73rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.about-contents h2 {
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -.02em;
}

.career-timeline {
  position: relative;
  margin: .5rem 0 3rem;
  padding: .25rem 0;
}

.career-timeline::before {
  position: absolute;
  top: 1.1rem;
  bottom: 1.1rem;
  left: 8.1rem;
  width: 1px;
  background: var(--line);
  content: "";
}

.timeline-entry {
  position: relative;
  display: grid;
  grid-template-columns: 7rem 2.2rem 1fr;
  gap: 0;
  min-height: 6.1rem;
}

.timeline-date {
  margin: .48rem 1rem 0 0;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 650;
  line-height: 1.3;
  text-align: right;
}

.timeline-marker {
  z-index: 1;
  width: .72rem;
  height: .72rem;
  margin: .53rem auto 0;
  border: 2px solid white;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 2px var(--blue);
}

.timeline-entry.research .timeline-marker { background: var(--violet); box-shadow: 0 0 0 2px var(--violet); }
.timeline-entry.teaching .timeline-marker { background: var(--teal); box-shadow: 0 0 0 2px var(--teal); }
.timeline-entry.current .timeline-marker { box-shadow: 0 0 0 2px var(--blue), 0 0 0 6px #dceaff; }

.timeline-card {
  margin: 0 0 1rem;
  padding: .8rem 1rem .9rem;
  border: 1px solid var(--line);
  border-radius: .55rem;
  background: var(--card);
}

.timeline-kind, .card-number {
  margin: 0 0 .25rem;
  color: var(--blue);
  font-size: .68rem;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.research .timeline-kind { color: var(--violet); }
.teaching .timeline-kind { color: var(--teal); }

.timeline-card h3, .feature-card h3, .teaching-list h3, .interests-grid h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 700;
}

.timeline-card p:last-child, .feature-card p:last-child, .teaching-list p, .interests-grid p {
  margin: .25rem 0 0;
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.55;
}

.feature-grid, .interests-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card, .interests-grid article {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--card);
}

.feature-card {
  min-height: 100%;
  border-top: 3px solid var(--blue);
}

.feature-card:nth-child(2) { border-top-color: var(--violet); }
.feature-card:nth-child(3) { border-top-color: var(--teal); }
.feature-card:nth-child(2) .card-number { color: var(--violet); }
.feature-card:nth-child(3) .card-number { color: var(--teal); }

.teaching-list {
  margin-bottom: 3rem;
  border-top: 1px solid var(--line);
}

.teaching-list article {
  display: grid;
  grid-template-columns: minmax(14rem, .8fr) 2fr;
  gap: 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.teaching-list p { margin: 0; }

.interests-grid { margin-bottom: 2rem; }
.interests-grid article { background: var(--surface); }
.interests-grid a { color: var(--blue); }

html[data-theme="dark"] .timeline-marker { border-color: var(--page); }
html[data-theme="dark"] .timeline-entry.current .timeline-marker { box-shadow: 0 0 0 2px var(--blue), 0 0 0 6px #203b67; }
html[data-theme="dark"] .quarto-title-banner,
html[data-theme="dark"] .quarto-title-block { background-color: var(--page); }
html[data-theme="dark"] .card,
html[data-theme="dark"] .quarto-post,
html[data-theme="dark"] .dropdown-menu,
html[data-theme="dark"] .page-link,
html[data-theme="dark"] .table {
  border-color: var(--line);
  background-color: var(--card);
  color: var(--ink);
}
html[data-theme="dark"] .quarto-post .listing-title a,
html[data-theme="dark"] .quarto-post .listing-description,
html[data-theme="dark"] .quarto-post .listing-date,
html[data-theme="dark"] .dropdown-item { color: var(--ink); }
html[data-theme="dark"] .dropdown-item:hover { background: var(--surface); }
html[data-theme="dark"] .navbar-toggler { border-color: var(--line); }
html[data-theme="dark"] .navbar-toggler-icon { filter: invert(1); }

@media (max-width: 700px) {
  .feature-grid, .interests-grid { grid-template-columns: 1fr; }
  .teaching-list article { grid-template-columns: 1fr; gap: .35rem; }
}

@media (max-width: 480px) {
  .career-timeline::before { left: .37rem; }
  .timeline-entry { grid-template-columns: 1.1rem 1fr; gap: .75rem; }
  .timeline-date { grid-column: 2; grid-row: 1; margin: 0; text-align: left; }
  .timeline-marker { grid-column: 1; grid-row: 1 / span 2; margin-top: .22rem; }
  .timeline-card { grid-column: 2; grid-row: 2; }
}