:root {
  --maroon: #6b001c;
  --ink: #202020;
  --muted: #656565;
  --line: #dedbd6;
  --soft: #f7f6f3;
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "DM Sans", sans-serif;
  font-size: .95rem;
  line-height: 1.65;
}

h1, h2, h3, h4, .navbar-brand {
  font-family: "Libre Franklin", sans-serif;
  letter-spacing: -.025em;
}

a { color: var(--maroon); text-underline-offset: .2em; }
a:hover { color: #3f0010; }

.skip-link {
  position: fixed;
  z-index: 2000;
  top: -4rem;
  left: 1rem;
  padding: .6rem .8rem;
  color: #fff;
  background: var(--maroon);
}
.skip-link:focus { top: 0; }

.navbar {
  min-height: 64px;
  background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.navbar-brand { color: var(--ink); font-size: 1rem; font-weight: 700; }
.nav-link { padding-right: .65rem !important; padding-left: .65rem !important; color: #444; font-size: .85rem; font-weight: 600; }
.nav-link:hover, .nav-link:focus, .nav-link.active { color: var(--maroon) !important; }

.hero {
  padding: 1.75rem 0;
  background: var(--soft);
  border-bottom: 1px solid var(--line);
}
.profile-photo { display: block; width: 120px; height: 160px; object-fit: cover; border-radius: 2px; }
.hero h1 { max-width: 680px; margin: 0; font-size: 1.3rem; line-height: 1.3; }
.hero-role { margin-bottom: 0; font-size: .96rem; font-weight: 700; line-height: 1.5; }
.hero-role span { color: var(--muted); font-weight: 400; }
.hero-copy { max-width: 680px; margin-bottom: 0; color: #4e4e4e; font-size: .94rem; }
.profile-links a { font-size: .86rem; font-weight: 600; }

.eyebrow { margin-bottom: .45rem; color: var(--maroon); font-size: .66rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.section { padding: 3rem 0; scroll-margin-top: 64px; }
.section + .section { border-top: 1px solid var(--line); }
.section-tint, .section-muted { background: var(--soft); }
.section-heading { padding-bottom: .6rem; }
.section h2, .contact-panel h2 { max-width: 720px; margin: 0; font-size: clamp(1.45rem, 2.4vw, 1.9rem); line-height: 1.25; }
.section-intro { color: var(--muted); font-size: .92rem; }
.compact-section { padding-top: 2rem; padding-bottom: 2rem; }
.compact-section h2, .compact-section .contact-panel h2 { font-size: 1.2rem; line-height: 1.35; }

.research-card {
  height: 100%;
  padding: 1rem 0 0;
  background: transparent;
  border: 0;
  border-top: 2px solid var(--ink);
  border-radius: 0;
}
.research-card-featured { border-top-color: var(--maroon); }
.research-card-dark { color: var(--ink); background: transparent; border-top-color: var(--ink); }
.card-number { margin-bottom: .75rem; color: var(--muted); font-size: .66rem; font-weight: 700; letter-spacing: .1em; }
.research-card-dark .card-number { color: var(--muted); }
.research-card h3 { margin-bottom: .7rem; font-size: 1.1rem; line-height: 1.35; }
.research-card p, .research-card-dark p { color: var(--muted); }
.research-card .research-examples { margin: .65rem 0 0; color: #4b4b4b; font-size: .82rem; line-height: 1.5; }
.research-examples a { font-weight: 600; }
.research-figure { margin: .85rem 0 0; }
.research-figure a { display: block; }
.research-figure img { display: block; width: 100%; height: auto; background: #fff; border: 1px solid var(--line); }
.research-figure figcaption { margin-top: .3rem; color: var(--muted); font-size: .69rem; line-height: 1.35; }
.research-figure-wide { margin-top: .75rem; }
.topic-tags { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .7rem; }
.topic-tags span { color: var(--muted); font-size: .75rem; }
.topic-tags span + span::before { content: "·"; margin-right: .6rem; }
.subarea { display: flex; gap: .75rem; }
.subarea + .subarea { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.subarea-marker { flex: 0 0 auto; width: .35rem; height: .35rem; margin-top: .5rem; background: var(--maroon); border-radius: 50%; }
.subarea h4 { margin-bottom: .3rem; font-family: "DM Sans", sans-serif; font-size: .92rem; letter-spacing: 0; line-height: 1.45; }
.subarea p { margin: 0; font-size: .84rem; }
.card-link { display: inline-block; margin-top: .8rem; color: var(--maroon); font-size: .85rem; font-weight: 600; }
.card-link:hover { color: #3f0010; }

.publication-list { margin-top: 1.25rem !important; }
.publications-full { color: var(--muted); font-size: 1rem; }
.publications-full a { font-weight: 600; }
.publication-item { display: grid; grid-template-columns: 70px 1fr; gap: 1.5rem; padding: 1rem 0; border-top: 1px solid var(--line); }
.publication-item:last-child { border-bottom: 1px solid var(--line); }
.publication-year { color: var(--muted); font-size: .86rem; font-weight: 600; }
.publication-type { margin-bottom: .25rem; color: var(--muted); font-size: .67rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; }
.publication-item h3 { max-width: 900px; margin-bottom: .35rem; font-family: "DM Sans", sans-serif; font-size: 1rem; line-height: 1.5; letter-spacing: -.01em; }
.authors { margin-bottom: .25rem; color: var(--muted); font-size: .83rem; }
.publication-item a { font-size: .82rem; font-weight: 600; }

.software-list { border-top: 1px solid var(--line); }
.software-item { display: flex; align-items: start; justify-content: space-between; gap: 2rem; padding: .9rem 0; border-bottom: 1px solid var(--line); }
.software-item h3 { margin: 0 0 .25rem; font-size: 1.05rem; }
.software-item p { margin: 0; color: var(--muted); font-size: .88rem; }
.software-links { display: flex; gap: 1rem; font-size: .84rem; font-weight: 600; white-space: nowrap; }

.teaching-list { border-top: 1px solid var(--line); }
.teaching-item { display: grid; grid-template-columns: 95px 1fr; gap: 1rem; padding: .75rem 0; border-bottom: 1px solid var(--line); }
.course-code { color: var(--maroon); font-size: .78rem; font-weight: 700; }
.teaching-item h3 { margin: 0; font-family: "DM Sans", sans-serif; font-size: .94rem; letter-spacing: 0; }
.teaching-item p { margin: .1rem 0 0; color: var(--muted); font-size: .8rem; }

.timeline { border: 0; }
.background-section { padding-bottom: 1.35rem; }
.timeline-item { display: grid; grid-template-columns: 105px 1fr; gap: 1rem; padding: 0 0 .65rem; }
.timeline-item::before { display: none; }
.timeline-date { grid-column: 1; grid-row: 1 / span 2; margin: .1rem 0 0; color: var(--muted); font-size: .72rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.timeline-item h3 { grid-column: 2; margin-bottom: .1rem; font-family: "DM Sans", sans-serif; font-size: .94rem; letter-spacing: 0; }
.timeline-item p:last-child { grid-column: 2; margin: 0; color: var(--muted); font-size: .82rem; line-height: 1.45; }

.contact-section { background: #fff; }
.contact-panel { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 0; color: var(--ink); background: transparent; }
.contact-panel > a { font-weight: 600; white-space: nowrap; }

footer { padding: 1.6rem 0; border-top: 1px solid var(--line); font-size: .8rem; }
footer p { margin: 0; color: var(--muted); }
footer a { color: var(--ink); font-weight: 600; text-decoration: none; }

@media (max-width: 991.98px) {
  .navbar-collapse { padding: .7rem 0; }
  .section { padding: 2.75rem 0; }
}

@media (max-width: 767.98px) {
  .hero { padding: 1.5rem 0; }
  .profile-photo { width: 96px; height: 128px; }
  .section { padding: 2.5rem 0; }
  .compact-section { padding: 1.75rem 0; }
  .publication-item { grid-template-columns: 1fr; gap: .25rem; }
  .timeline-item { grid-template-columns: 1fr; gap: .2rem; }
  .timeline-date, .timeline-item h3, .timeline-item p:last-child { grid-column: 1; grid-row: auto; }
  .software-item, .contact-panel { align-items: flex-start; flex-direction: column; }
  .contact-panel { gap: .35rem; }
  .teaching-item { grid-template-columns: 1fr; gap: .15rem; }
}

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