:root {
  --background: #ffffff;
  --text: #222222;
  --muted: #555555;
  --accent: #2f5d8c;
  --line: #e5e5e5;
  --max-width: 800px;
  --font-serif: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--background);
  font-family: var(--font-serif);
  line-height: 1.72;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

p,
ul,
ol {
  margin: 0 0 1rem;
}

ul,
ol {
  padding-left: 1.2rem;
}

h1,
h2,
h3 {
  margin: 0 0 0.75rem;
  line-height: 1.2;
  font-weight: 600;
}

h1 {
  font-size: clamp(2.4rem, 7vw, 3.6rem);
}

h2 {
  font-size: clamp(1.35rem, 4vw, 1.8rem);
}

h3 {
  font-size: 1.15rem;
}

.site-wrap {
  width: min(var(--max-width), calc(100vw - 2.5rem));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 72px;
}

.site-brand {
  color: var(--text);
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--text);
  padding: 0.45rem 0.8rem;
  font: inherit;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.site-nav a {
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
}

.site-main {
  padding: 3.5rem 0 4rem;
}

.intro-block,
.page-intro {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.intro-block__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 2rem;
  align-items: start;
}

.intro-block__name {
  font-size: clamp(2rem, 5vw, 2.9rem);
}

.page-kicker {
  margin-bottom: 0.85rem;
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.intro-block__meta,
.page-summary {
  max-width: 44rem;
  color: var(--muted);
}

.intro-block__bio {
  max-width: 46rem;
  font-size: 1.06rem;
}

.page-title-small {
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 600;
}

.intro-block__figure {
  margin: 0;
}

.intro-block__figure img {
  width: 220px;
  max-width: 100%;
  aspect-ratio: 1 / 1.15;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-section {
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
}

.page-section:last-of-type {
  border-bottom: 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.interest-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.6rem;
}

.interest-list li {
  padding-left: 1.2rem;
  position: relative;
}

.interest-list li::before {
  content: "";
  position: absolute;
  top: 0.72rem;
  left: 0;
  width: 0.4rem;
  height: 1px;
  background: var(--accent);
}

.publication-list,
.project-list,
.note-list {
  display: grid;
  gap: 1.5rem;
}

.publication-item,
.project-item,
.note-item {
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--line);
}

.publication-item:last-child,
.project-item:last-child,
.note-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.publication-item__title {
  font-size: 1.02rem;
  display: inline-block;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.publication-item__title-link {
  color: var(--text);
}

.publication-item__title-link:hover {
  color: var(--accent);
}

.publication-item__authors,
.publication-item__meta,
.project-item__description,
.note-item__summary,
.note-item__date,
.empty-state {
  color: var(--muted);
}

.publication-item__links,
.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.publication-item__links {
  margin-top: 0.75rem;
}

.publication-item__tags,
.tag-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.7rem;
}

.publication-item__tags {
  margin-top: 0.75rem;
}

.tag-chip-list {
  margin-top: 1rem;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--muted);
  padding: 0.22rem 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  line-height: 1.4;
  cursor: pointer;
}

.tag-chip.is-active,
.tag-chip--inline {
  border-color: rgba(47, 93, 140, 0.2);
  color: var(--accent);
}

.tag-chip--inline {
  cursor: default;
}

.back-link {
  display: inline-block;
  margin-bottom: 0.8rem;
  font-family: var(--font-sans);
  font-size: 0.92rem;
}

.abstract-block {
  max-width: 46rem;
}

.abstract-block p:last-child {
  margin-bottom: 0;
}

.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.project-item__title,
.note-item__title {
  margin-bottom: 0.35rem;
}

.contact-list {
  margin: 0;
  display: grid;
  gap: 0.9rem;
}

.contact-list div {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: 1rem;
}

.contact-list dt {
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 0.92rem;
}

.contact-list dd {
  margin: 0;
}

.cv-section p:last-child {
  margin-bottom: 0;
}

.note-item__date {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--font-sans);
  font-size: 0.88rem;
}

.site-footer {
  padding: 0 0 2.5rem;
}

.site-footer p {
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.note-article {
  padding: 3rem 0 4rem;
}

.note-article__meta {
  display: block;
  margin-bottom: 1rem;
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.note-article__body {
  max-width: 46rem;
}

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

  .intro-block__figure img {
    width: min(220px, 100%);
  }

  .contact-list div {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .site-header__inner {
    min-height: 64px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    left: 1.25rem;
    right: 1.25rem;
    top: calc(100% + 0.5rem);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
    border: 1px solid var(--line);
    background: #ffffff;
  }

  .site-nav.is-open {
    display: flex;
  }

  .section-head {
    display: block;
  }

  .section-head a {
    display: inline-block;
    margin-top: 0.35rem;
  }
}