:root {
  --bg: #f2f4f7;
  --paper: #f9fafb;
  --ink: #1c2b3a;
  --muted: #5b6c7e;
  --line: #cdd5e0;
  --accent: #c95f26;
  --accent-soft: #fae3d5;
  --maxw: 980px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% -10%, #dde5f2 0%, transparent 45%),
    radial-gradient(circle at 90% 0%, #f5ddd0 0%, transparent 35%),
    var(--bg);
  line-height: 1.6;
}

.site-wrap {
  width: min(100% - 2rem, var(--maxw));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: color-mix(in srgb, var(--bg) 86%, white 14%);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.nav {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.94rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  border: 1px solid transparent;
}

.nav a:hover,
.nav a.active {
  color: var(--accent);
  border-color: var(--line);
  background: var(--paper);
}

main {
  padding: 2.2rem 0 3rem;
}

.hero {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.4rem;
  box-shadow: 0 12px 28px rgba(22, 33, 31, 0.06);
  animation: rise 420ms ease;
}

.hero-inner {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.hero-text {
  flex: 1;
  min-width: 0;
}

.hero-photo {
  flex-shrink: 0;
}

.profile-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--line);
  display: block;
}

h1,
h2,
h3 {
  font-family: "Source Serif 4", Georgia, serif;
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(1.7rem, 3.8vw, 2.7rem);
}

h2 {
  font-size: clamp(1.35rem, 2.8vw, 1.9rem);
  margin-top: 1.9rem;
}

p,
li {
  font-size: 1rem;
}

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

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.8rem;
}

.pill {
  border: 1px solid var(--line);
  background: #fbfaf7;
  color: var(--muted);
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  font-size: 0.88rem;
}

.quick-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.15rem;
}

.button-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: white;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 0.58rem 0.95rem;
  font-size: 0.94rem;
}

.btn-icon {
  width: 1em;
  height: 1em;
  fill: currentColor;
  flex-shrink: 0;
}

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

.list-grid {
  display: grid;
  gap: 0.9rem;
  margin-top: 1rem;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  animation: rise 500ms ease;
}

.card-head {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: baseline;
  flex-wrap: wrap;
}

.card h3 {
  font-size: 1.12rem;
  margin-bottom: 0.35rem;
}

.meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.card p {
  margin: 0.55rem 0;
}

.teaching-section-label {
  margin: 0.85rem 0 0.15rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

.teaching-highlights,
.teaching-courses {
  margin: 0.15rem 0 0.2rem 1.25rem;
}

.teaching-highlights {
  list-style-type: circle;
}

.teaching-courses {
  list-style-type: disc;
}

.teaching-highlights li,
.teaching-courses li {
  margin: 0.08rem 0;
}

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

.warning {
  margin-top: 0.65rem;
  font-size: 0.9rem;
  color: #8f4b0e;
  background: #fff4e6;
  border: 1px solid #f0cc9f;
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
}

.section-label {
  margin: 1rem 0 0.3rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

.page-section {
  margin-top: 1.2rem;
}

.exp-highlights {
  margin: 0.5rem 0 0.2rem 1.25rem;
  list-style-type: disc;
}

.exp-highlights li {
  margin: 0.2rem 0;
}

.awards-list {
  margin: 0.5rem 0 0 1.25rem;
  list-style-type: disc;
}

.awards-list li {
  margin: 0.35rem 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2.4rem;
  color: var(--muted);
  font-size: 0.93rem;
}

.fade-up {
  animation: rise 540ms ease;
}

@keyframes rise {
  from {
    transform: translateY(10px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@media (max-width: 760px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .card-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-inner {
    flex-direction: column-reverse;
  }

  .profile-photo {
    width: 110px;
    height: 110px;
  }
}