:root {
  --bg: #f7f9f7;
  --surface: #ffffff;
  --surface-muted: #fbfcfb;
  --text: #202224;
  --muted: #5d6361;
  --line: #dde4df;
  --accent: #11735f;
  --accent-strong: #0c5f50;
  --accent-soft: #d9ebe5;
  --warm: #c9553d;
  --hero-line: #087963;
  --shadow: 0 18px 36px rgba(26, 35, 31, 0.12);
  --max-width: 1100px;
  --wide-width: 1200px;
}

:root[data-theme="dark"] {
  --bg: #101512;
  --surface: #1e2a25;
  --surface-muted: #19211c;
  --text: #eff5f2;
  --muted: #aebbb6;
  --line: #2d3b35;
  --accent: #69cbb1;
  --accent-strong: #8fe0ca;
  --accent-soft: #19382f;
  --warm: #ff947b;
  --hero-line: #6ecfb4;
  --shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

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

html[data-theme="dark"] {
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: 0;
}

body,
button,
input,
textarea {
  font: inherit;
}

a {
  color: var(--accent);
  text-decoration-color: currentColor;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  color: var(--text);
  line-height: 1.1;
  letter-spacing: 0;
}

.icon {
  display: inline-block;
  flex: 0 0 auto;
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.github-icon {
  fill: currentColor;
  stroke: none;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  transform: translateY(-160%);
  z-index: 20;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  padding: 0.55rem 0.8rem;
}

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

.content-wrap {
  width: min(var(--max-width), calc(100% - 3rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

:root[data-theme="dark"] .site-header {
  background: rgba(16, 21, 18, 0.86);
}

.site-nav {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 2rem;
  width: min(var(--wide-width), calc(100% - 3rem));
  min-height: 5.15rem;
  margin: 0 auto;
}

.site-title {
  color: var(--accent-strong);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
}

.site-title:hover {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: stretch;
  gap: 1.95rem;
  min-height: 5.15rem;
}

.nav-links a {
  position: relative;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
}

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

.nav-links a.active::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 4px;
  background: var(--accent);
}

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.theme-toggle:hover {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.theme-toggle .icon {
  width: 1.45rem;
  height: 1.45rem;
}

.icon-sun {
  display: none;
}

:root[data-theme="dark"] .icon-moon {
  display: none;
}

:root[data-theme="dark"] .icon-sun {
  display: inline-block;
}

.site-main {
  min-height: calc(100vh - 9.5rem);
}

.intro {
  position: relative;
  isolation: isolate;
  min-height: 37.2rem;
  overflow: hidden;
  background: var(--bg);
}

.intro-content {
  position: relative;
  z-index: 1;
  width: min(var(--max-width), calc(100% - 3rem));
  margin: 0 auto;
  padding: 5.4rem 0 5.5rem;
}

.eyebrow {
  margin-bottom: 0.8rem;
  color: var(--accent-strong);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: uppercase;
}

.intro h1 {
  max-width: 8.2ch;
  font-size: 4.2rem;
  font-weight: 800;
}

.title-rule {
  display: block;
  width: 4rem;
  height: 4px;
  margin: 1.55rem 0 1.3rem;
  background: var(--accent);
}

.lead {
  color: var(--text);
  font-size: 1.45rem;
  line-height: 1.35;
}

.intro-bio {
  max-width: 31rem;
  margin-top: 1.2rem;
  color: var(--text);
  font-size: 1.05rem;
}

.intro-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin-top: 2.6rem;
}

.intro-links a,
.publication-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--accent);
  font-weight: 750;
  line-height: 1.2;
  text-decoration: none;
}

.intro-links a:hover,
.publication-links a:hover {
  color: var(--warm);
}

.intro-art {
  position: absolute;
  top: 1.9rem;
  right: -7.5rem;
  z-index: 0;
  width: min(65rem, 72vw);
  aspect-ratio: 1040 / 560;
  color: var(--hero-line);
  pointer-events: none;
}

.intro-art svg {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  opacity: 1;
}

:root[data-theme="dark"] .intro-art svg {
  opacity: 0.5;
}

.home-publications {
  background: var(--surface);
  border-top: 1px solid var(--line);
  padding: 3.8rem 0 4.5rem;
  scroll-margin-top: 6rem;
}

:root[data-theme="dark"] .home-publications {
  background: var(--bg);
}

.home-section-heading h2 {
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--line);
  font-size: 2.25rem;
  font-weight: 800;
}

.home-section-heading p {
  margin-top: 1.7rem;
  color: var(--muted);
}

.publication-list {
  display: grid;
  gap: 1.25rem;
  padding-top: 2rem;
}

.publication-card {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1.35rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 5px solid var(--accent);
  border-radius: 7px;
  box-shadow: var(--shadow);
  padding: 2.7rem 2.6rem 2.6rem;
}

.publication-icon {
  width: 2rem;
  height: 2rem;
  margin-top: 0.15rem;
  color: var(--accent);
  stroke-width: 1.8;
}

.publication-title {
  margin-bottom: 0.65rem;
  font-size: 1.23rem;
  font-weight: 800;
}

.publication-title a {
  color: var(--text);
  text-decoration: none;
}

.publication-title a:hover {
  color: var(--accent);
}

.publication-authors {
  color: var(--muted);
  font-size: 1rem;
}

.publication-meta {
  max-width: 50rem;
  margin-top: 0.85rem;
  color: var(--warm);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.45;
}

.publication-abstract {
  max-width: 48rem;
  margin-top: 2rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.publication-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.35rem;
  margin-top: 2rem;
  font-size: 0.97rem;
}

.publication-links a {
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.08rem;
}

.publication-links .icon {
  width: 1.15rem;
  height: 1.15rem;
}

.page-heading,
.section,
.post {
  width: min(var(--max-width), calc(100% - 3rem));
  margin: 0 auto;
}

.page-heading {
  display: grid;
  gap: 1rem;
  padding: 5rem 0 2.5rem;
  border-bottom: 1px solid var(--line);
}

.page-heading h1,
.section h1,
.post-header h1 {
  font-size: 3rem;
  font-weight: 800;
}

.page-heading .lead,
.section p {
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.1rem;
}

.section {
  display: grid;
  grid-template-columns: minmax(10rem, 16rem) minmax(0, 1fr);
  gap: 2rem;
  padding: 4rem 0;
  border-bottom: 1px solid var(--line);
}

.section h2 {
  font-size: 1.35rem;
}

.post-list {
  width: min(var(--max-width), calc(100% - 3rem));
  margin: 0 auto;
}

.post-preview {
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--line);
}

.post-preview h2 {
  margin-top: 0.35rem;
  font-size: 1.6rem;
}

.post-preview h2 a {
  color: var(--text);
  text-decoration: none;
}

.post-preview h2 a:hover {
  color: var(--accent);
}

.post-date {
  color: var(--warm);
  font-size: 0.9rem;
  font-weight: 800;
}

.post-header {
  display: grid;
  gap: 0.9rem;
  padding: 5rem 0 2.5rem;
  border-bottom: 1px solid var(--line);
}

.post-content {
  max-width: 46rem;
  padding: 2.75rem 0;
}

.post-content p {
  margin-bottom: 1.2rem;
}

.site-footer {
  display: grid;
  place-items: center;
  min-height: 5rem;
  border-top: 1px solid var(--line);
  background: var(--surface-muted);
  color: var(--muted);
  font-size: 0.96rem;
  text-align: center;
}

.site-footer p {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
  padding: 1.25rem 1.5rem;
}

@media (max-width: 900px) {
  .site-nav {
    grid-template-columns: 1fr auto;
    gap: 0.75rem 1rem;
    padding: 0.85rem 0;
  }

  .nav-links {
    grid-column: 1 / -1;
    justify-content: flex-start;
    order: 3;
    min-height: 2.4rem;
    overflow-x: auto;
  }

  .nav-links a {
    min-height: 2.4rem;
    white-space: nowrap;
  }

  .nav-links a.active::after {
    bottom: 0;
    height: 3px;
  }

  .intro {
    min-height: 34rem;
  }

  .intro h1 {
    font-size: 3.4rem;
  }

  .intro-art {
    top: 20.5rem;
    right: -22.5rem;
    width: 53.125rem;
  }

  .intro-art svg {
    opacity: 0.78;
  }

  .publication-card {
    padding: 2rem;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .content-wrap,
  .intro-content,
  .page-heading,
  .section,
  .post,
  .post-list,
  .site-nav {
    width: min(100% - 2rem, var(--max-width));
  }

  .site-title {
    font-size: 1.75rem;
  }

  .nav-links {
    gap: 1.25rem;
  }

  .intro {
    min-height: 36rem;
  }

  .intro-content {
    padding: 4rem 0 4.6rem;
  }

  .intro h1 {
    font-size: 3rem;
  }

  .lead {
    font-size: 1.25rem;
  }

  .intro-bio {
    max-width: 24rem;
  }

  .intro-art {
    top: 23rem;
    right: -29rem;
    width: 52rem;
  }

  .intro-art svg {
    opacity: 0.72;
  }

  .home-publications {
    padding: 3rem 0 3.5rem;
  }

  .home-section-heading h2 {
    font-size: 2rem;
  }

  .publication-card {
    grid-template-columns: 1fr;
    gap: 0.95rem;
    padding: 1.35rem 1.2rem 1.45rem;
  }

  .publication-icon {
    width: 1.65rem;
    height: 1.65rem;
  }

  .publication-abstract,
  .publication-links {
    margin-top: 1.35rem;
  }

  .section {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .page-heading h1,
  .section h1,
  .post-header h1 {
    font-size: 2.45rem;
  }
}