:root {
  --ink: #1f2328;
  --muted: #5f6b63;
  --paper: #fbfbf8;
  --surface: #ffffff;
  --rule: #dfe5dd;
  --green: #286452;
  --green-dark: #173f34;
  --blue: #2e6287;
  --red: #8b3344;
  --amber: #b47a2b;
  --shadow: 0 16px 42px rgba(31, 35, 40, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--green-dark);
  text-underline-offset: 0.16em;
  text-decoration-thickness: 0.08em;
}

a:hover {
  color: var(--red);
}

a:focus-visible {
  outline: 3px solid rgba(180, 122, 43, 0.55);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 0.75rem;
  z-index: 10;
  transform: translateY(-160%);
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(251, 251, 248, 0.94);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: blur(14px);
}

.nav-shell,
.intro-section,
.section-block,
.page-shell,
.site-footer {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.nav-shell {
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.25rem;
  aspect-ratio: 1;
  border: 1px solid var(--green);
  color: var(--green-dark);
  font-size: 0.78rem;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
}

.nav-links a {
  color: var(--ink);
  text-decoration: none;
  padding: 0.32rem 0.52rem;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--green-dark);
  border-bottom-color: var(--amber);
}

.intro-section {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  gap: clamp(1.15rem, 3vw, 2rem);
  align-items: start;
  padding: clamp(1rem, 2.8vw, 2.25rem) 0 clamp(0.8rem, 2vw, 1.5rem);
  border-bottom: 1px solid var(--rule);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--red);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3,
h4 {
  line-height: 1.14;
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(1.85rem, 3.8vw, 3rem);
  max-width: 16ch;
}

.title {
  margin: 0.3rem 0 0.2rem;
  color: var(--green-dark);
  font-size: clamp(0.98rem, 1.4vw, 1.1rem);
  font-weight: 680;
}

.lede {
  max-width: 70ch;
  margin: 0;
  color: #303832;
  font-size: clamp(0.95rem, 1.25vw, 1.03rem);
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin-top: 0.85rem;
}

.link-row a,
.contact-email,
.text-link {
  color: var(--green-dark);
  font-weight: 700;
}

.profile-panel {
  display: grid;
  gap: 0.55rem;
  align-self: start;
  justify-items: start;
  padding-top: 0.1rem;
}

.profile-panel img {
  width: 232px;
  height: 232px;
  object-fit: cover;
  object-position: top center;
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
}

.profile-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.section-block {
  padding: clamp(1rem, 2.8vw, 2.25rem) 0;
  border-bottom: 1px solid var(--rule);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 0.9rem;
}

.section-heading h2,
.page-title h1 {
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
}

.section-heading p,
.page-title p {
  color: var(--muted);
}

.split-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.2rem, 3vw, 2rem);
  align-items: start;
}

.split-list > div > h3 {
  margin: 0 0 1rem;
  color: var(--blue);
  font-size: 1.18rem;
}

.paper-card,
.course-card,
.publication-item,
.selected-list li {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 6px;
  box-shadow: 0 8px 26px rgba(31, 35, 40, 0.05);
}

.paper-card {
  padding: 0.82rem;
  margin-bottom: 0.6rem;
}

.featured-paper {
  border-top: 4px solid var(--green);
}

.paper-card h4 {
  font-size: 1rem;
}

.paper-card p,
.publication-item p,
.course-card p,
.plain-content p {
  margin: 0.38rem 0 0;
}

.paper-meta {
  color: var(--red);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.45rem;
}

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

.tags {
  color: var(--blue);
  font-size: 0.88rem;
  font-weight: 750;
}

.selected-block {
  background:
    linear-gradient(90deg, rgba(40, 100, 82, 0.08), rgba(139, 51, 68, 0.06));
  width: 100%;
  max-width: none;
  padding-inline: max(1rem, calc((100vw - 1120px) / 2));
}

.selected-list {
  list-style: none;
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}

.selected-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: center;
  padding: 0.72rem 0.85rem;
}

.selected-list h3 {
  font-size: 0.98rem;
}

.selected-list p {
  margin: 0.18rem 0 0;
  font-size: 0.92rem;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  gap: clamp(1.2rem, 4vw, 3rem);
}

.about-grid h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
}

.page-shell {
  padding: clamp(1.4rem, 3.5vw, 3rem) 0;
}

.narrow-page {
  max-width: 820px;
}

.page-title {
  max-width: 800px;
  margin-bottom: 1.1rem;
}

.page-title p {
  margin: 0.35rem 0 0;
}

.publication-list {
  display: grid;
  gap: 0.6rem;
}

.publication-item {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.85rem;
}

.publication-item h2 {
  font-size: 1.18rem;
}

.pub-number {
  display: grid;
  place-items: center;
  width: 2.35rem;
  aspect-ratio: 1;
  border: 1px solid var(--amber);
  color: var(--red);
  font-weight: 800;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.course-card {
  padding: 0.9rem;
}

.course-card h2 {
  font-size: 1.25rem;
}

.course-card ol {
  margin: 0.65rem 0 0;
  padding-left: 1.2rem;
}

.course-card li + li {
  margin-top: 0.26rem;
}

.course-note {
  color: var(--muted);
  font-size: 0.94rem;
}

.plain-content {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: clamp(1.1rem, 3vw, 1.6rem);
}

.plain-content h2 {
  margin-top: 1.45rem;
  font-size: 1.2rem;
}

.plain-content h2:first-child {
  margin-top: 0;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

.site-footer div {
  display: flex;
  gap: 1rem;
}

@media (max-width: 860px) {
  .split-list,
  .about-grid,
  .course-grid {
    grid-template-columns: 1fr;
  }

  .intro-section {
    grid-template-columns: 136px minmax(0, 1fr);
    gap: 0.85rem;
  }

  .profile-panel {
    justify-items: start;
    max-width: 100%;
    padding-top: 0.1rem;
  }

  .profile-panel img {
    width: 136px;
    height: 136px;
    aspect-ratio: 1;
    object-position: top center;
  }

  .profile-panel p {
    font-size: 0.88rem;
    line-height: 1.35;
  }

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

  .citation-pill {
    width: fit-content;
  }
}

@media (max-width: 640px) {
  .nav-shell {
    align-items: flex-start;
    flex-direction: column;
    padding: 0.9rem 0;
  }

  .nav-links {
    justify-content: flex-start;
    width: 100%;
  }

  .nav-links a {
    padding-left: 0;
    padding-right: 0.8rem;
  }

  .intro-section {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    padding-top: 1.5rem;
  }

  .profile-panel img {
    width: 128px;
    height: 128px;
  }

  h1 {
    font-size: 1.7rem;
  }

  .section-heading h2,
  .page-title h1 {
    font-size: 1.28rem;
  }

  .publication-item {
    grid-template-columns: 1fr;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}