:root {
  --nd-blue: #0c2340;
  --nd-gold: #ae9142;
  --nd-bright-gold: #d39f10;
  --background: #f8f5ee;
  --surface: #fffdfa;
  --ink: #1f2a2e;
  --muted: #5e6b70;
  --line: #ded5c8;
  --accent: var(--nd-blue);
  --accent-dark: #061629;
  --accent-soft: rgba(12, 35, 64, 0.08);
  --gold-soft: rgba(174, 145, 66, 0.18);
  --shadow: 0 24px 80px rgba(31, 42, 46, 0.09);
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--background);
  color: var(--ink);
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(174, 145, 66, 0.18), transparent 34rem),
    linear-gradient(180deg, #fbf8f1 0%, var(--background) 44rem);
}

img,
object {
  max-width: 100%;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-dark);
}

:focus-visible {
  outline: 3px solid var(--nd-bright-gold);
  outline-offset: 0.22rem;
}

.skip-link {
  background: var(--ink);
  color: var(--surface);
  left: 1rem;
  padding: 0.7rem 1rem;
  position: absolute;
  top: -4rem;
  z-index: 10;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  border-bottom: 1px solid rgba(222, 213, 200, 0.8);
}

.nav {
  align-items: center;
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max-width);
  padding: 1.15rem 1.25rem;
}

.brand {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

.nav-links a {
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.95rem;
  padding: 0.45rem 0.75rem;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: var(--gold-soft);
  color: var(--accent-dark);
}

main {
  margin: 0 auto;
  max-width: var(--max-width);
  padding: 4rem 1.25rem 5rem;
}

.hero {
  align-items: center;
  display: grid;
  gap: 3rem;
  grid-template-columns: minmax(0, 1.15fr) minmax(17rem, 0.85fr);
  min-height: 28rem;
}

.eyebrow {
  color: var(--nd-blue);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin: 0 0 0.75rem;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.18;
}

h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 8vw, 5.8rem);
  letter-spacing: -0.055em;
  margin: 0;
}

h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 1rem;
}

h3 {
  font-size: 1.05rem;
  margin: 0;
}

p {
  margin: 0;
}

.lead {
  color: var(--muted);
  font-size: clamp(1.18rem, 2vw, 1.45rem);
  margin-top: 1rem;
}

.narrow {
  max-width: 42rem;
}

.actions,
.split-header {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.actions {
  margin-top: 2rem;
}

.button {
  align-items: center;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: #fff;
  display: inline-flex;
  font-weight: 700;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.7rem 1.15rem;
  text-decoration: none;
}

.button:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
}

.button.secondary {
  background: transparent;
  color: var(--accent);
}

.button.secondary:hover {
  background: var(--gold-soft);
  color: var(--accent-dark);
}

.portrait-card {
  aspect-ratio: 1 / 1;
  background: var(--surface);
  border: 1px solid rgba(174, 145, 66, 0.38);
  border-radius: 2rem;
  box-shadow: var(--shadow);
  justify-self: end;
  margin: 0;
  max-width: 21rem;
  overflow: hidden;
  padding: 0.7rem;
  width: 100%;
}

.portrait-card img {
  aspect-ratio: 1 / 1;
  border-radius: 1.45rem;
  display: block;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  width: 100%;
}

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

.card,
.paper,
.teaching-block,
.pdf-panel {
  background: rgba(255, 253, 250, 0.82);
  border: 1px solid rgba(222, 213, 200, 0.9);
  border-radius: 1.35rem;
  box-shadow: 0 12px 48px rgba(31, 42, 46, 0.05);
  padding: 1.5rem;
}

.span-2 {
  grid-column: span 2;
}

.contact-list {
  display: grid;
  gap: 0.55rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page {
  max-width: 900px;
}

.page-header {
  margin-bottom: 2.25rem;
}

.page-header h1 {
  font-size: clamp(2.75rem, 7vw, 4.75rem);
}

.split-header {
  justify-content: space-between;
}

.stack,
.timeline {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.paper {
  display: grid;
  gap: 0.45rem;
}

.paper p,
.course p {
  color: var(--muted);
}

.teaching-block {
  display: grid;
  gap: 1rem;
}

.course {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.pdf-panel {
  padding: 0.75rem;
}

.pdf-panel object {
  border: 0;
  border-radius: 0.9rem;
  display: block;
  height: min(72rem, 78vh);
  width: 100%;
}

.not-found {
  min-height: 55vh;
}

.site-footer {
  border-top: 1px solid rgba(222, 213, 200, 0.8);
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 auto;
  max-width: var(--max-width);
  padding: 1.5rem 1.25rem 2rem;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.85rem;
  }

  .nav-links {
    justify-content: flex-start;
  }

  main {
    padding-top: 2.75rem;
  }

  .hero,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 2rem;
  }

  .portrait-card {
    justify-self: center;
    max-width: 19rem;
    order: -1;
    transform: none;
  }

  .span-2 {
    grid-column: auto;
  }
}