:root {
  color-scheme: light;
  --ink: #1b1f22;
  --muted: #5a5f66;
  --accent: #c4532c;
  --accent-strong: #962f18;
  --bg: #f6f1e8;
  --bg-alt: #efe9dd;
  --card: #fffaf1;
  --line: #e2d7c7;
  --shadow: 0 20px 50px rgba(27, 31, 34, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(120deg, #f7f1e9 0%, #f4f7f0 55%, #f6ede2 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 15% 20%, rgba(196, 83, 44, 0.08), transparent 45%),
    radial-gradient(circle at 80% 0%, rgba(50, 72, 94, 0.08), transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(141, 169, 128, 0.1), transparent 45%);
  pointer-events: none;
  z-index: 0;
}

.page {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 24px 64px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 18px;
  background: rgba(255, 250, 241, 0.75);
  border-radius: 16px;
  border: 1px solid rgba(226, 215, 199, 0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 18px;
  z-index: 10;
}

.logo {
  font-family: "Fraunces", "Times New Roman", serif;
  font-weight: 700;
  font-size: 20px;
  padding: 6px 10px;
  border-radius: 10px;
  background: var(--ink);
  color: #fff7ec;
  letter-spacing: 0.06em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav a:hover {
  color: var(--accent-strong);
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  margin-top: 40px;
  align-items: center;
}

.hero-text,
.hero-card,
.card,
.publication {
  animation: rise 0.7s ease-out both;
  animation-delay: var(--delay, 0s);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  color: var(--accent-strong);
  margin: 0 0 12px;
}

h1,
h2,
h3 {
  font-family: "Fraunces", "Times New Roman", serif;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(2.2rem, 3vw, 3.4rem);
}

.subtitle {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 16px;
}

.button {
  background: var(--accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.button.ghost {
  background: transparent;
  color: var(--accent-strong);
  border: 1px solid var(--accent-strong);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.tag-row span {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(226, 215, 199, 0.8);
  font-size: 0.85rem;
  color: var(--muted);
}

.quick-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.quick-facts a {
  color: inherit;
  text-decoration: none;
  font-weight: 600;
}

.label {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-card {
  background: var(--card);
  border-radius: 22px;
  padding: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: grid;
  gap: 20px;
  width: 100%;
  max-width: 440px;
  justify-self: center;
}

.portrait {
  border-radius: 18px;
  overflow: hidden;
  background: #efe3d7;
  aspect-ratio: 3 / 4;
  width: min(100%, 240px);
  margin: 0 auto;
}

.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.contact-block p {
  margin: 4px 0;
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.link-row a {
  color: var(--accent-strong);
  text-decoration: none;
  font-weight: 600;
}

.section {
  margin-top: 64px;
  padding: 12px 0;
  scroll-margin-top: 110px;
}

.section-header {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-header p {
  color: var(--muted);
  line-height: 1.6;
}

.small-note {
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 8px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.research-note {
  margin-top: 24px;
  padding: 14px 18px;
  border-radius: 14px;
  border-left: 3px solid var(--accent);
  background: rgba(255, 255, 255, 0.75);
  color: var(--muted);
  line-height: 1.6;
}

.card {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  padding: 18px;
  border: 1px solid rgba(226, 215, 199, 0.7);
  box-shadow: 0 10px 25px rgba(27, 31, 34, 0.08);
}

.accent {
  background: linear-gradient(100deg, rgba(196, 83, 44, 0.12), rgba(62, 90, 120, 0.08));
  border-radius: 22px;
  padding: 28px;
  border: 1px solid rgba(226, 215, 199, 0.8);
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.bullet-list,
.timeline {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.bullet-list li {
  padding-left: 18px;
  position: relative;
}

.bullet-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-strong);
}

.timeline li {
  display: grid;
  gap: 6px;
  grid-template-columns: 120px 1fr;
  align-items: baseline;
}

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

.publication-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
}

#pub-search {
  flex: 1;
  min-width: 220px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  font: inherit;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-chip {
  border: 1px solid var(--line);
  background: transparent;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  cursor: pointer;
}

.filter-chip.active {
  background: var(--ink);
  color: #fff7ec;
  border-color: var(--ink);
}

.publication-list {
  display: grid;
  gap: 18px;
}

.publication {
  background: rgba(255, 255, 255, 0.86);
  border-radius: 18px;
  padding: 18px 20px;
  border: 1px solid rgba(226, 215, 199, 0.8);
  display: grid;
  gap: 8px;
}

.pub-title {
  font-weight: 600;
  margin: 0;
}

.pub-meta {
  margin: 0;
  color: var(--muted);
}

.pub-note {
  margin: 0;
  color: var(--accent-strong);
  font-size: 0.92rem;
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.pub-links a,
.bibtex-toggle {
  text-decoration: none;
  color: var(--accent-strong);
  font-weight: 600;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  font: inherit;
}

.bibtex {
  margin: 8px 0 0;
  background: #1d1f23;
  color: #f7f2e8;
  padding: 12px;
  border-radius: 12px;
  font-size: 0.85rem;
  overflow-x: auto;
  white-space: pre-wrap;
}

.bibtex.hidden {
  display: none;
}

.pub-status {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.course-list {
  margin-top: 32px;
}

.course-list a {
  color: var(--accent-strong);
  text-decoration: none;
  font-weight: 600;
}

.student-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: grid;
  gap: 8px;
}

.list li {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(226, 215, 199, 0.7);
  width: fit-content;
}

.footer {
  margin-top: 72px;
  padding: 32px;
  border-radius: 24px;
  background: var(--ink);
  color: #fff8ef;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.footer a {
  color: #f6c7a4;
  text-decoration: none;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .site-header {
    position: static;
  }
}

@media (max-width: 720px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-card {
    order: -1;
  }

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

  .list li {
    width: 100%;
  }

  .timeline li {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}