:root {
  --bg: #ffffff;
  --surface: #f6f8fa;
  --surface-strong: #eef2f5;
  --text: #24292f;
  --muted: #57606a;
  --border: #d0d7de;
  --accent: #2da44e;
  --accent-dark: #1a7f37;
  --link: #0969da;
  --shadow: 0 16px 36px rgba(31, 35, 40, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

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

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

a:hover {
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  z-index: 10;
  padding: 8px 12px;
  background: var(--text);
  color: #ffffff;
  border-radius: 6px;
}

.skip-link:focus {
  left: 12px;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.96);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 700;
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.nav a {
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 8px 10px;
}

.nav a:hover,
.nav a[aria-current="page"] {
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
}

.social-links a:hover {
  border-color: #8c959f;
  text-decoration: none;
}

.social-links img,
.social-links svg {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
  gap: 42px;
  align-items: center;
  padding: 58px 0 40px;
}

.hero--compact {
  grid-template-columns: minmax(0, 1fr);
  padding-bottom: 18px;
}

.kicker {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 14px;
  font-size: 4.2rem;
  line-height: 1.05;
  letter-spacing: 0;
}

.page-title {
  font-size: 3.35rem;
}

h2 {
  margin-bottom: 0;
  font-size: 1.45rem;
  line-height: 1.25;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
  line-height: 1.35;
}

.lead {
  max-width: 740px;
  color: var(--muted);
  font-size: 1.16rem;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
}

.button:hover {
  border-color: #8c959f;
  text-decoration: none;
}

.button--primary {
  border-color: var(--accent-dark);
  background: var(--accent);
  color: #ffffff;
}

.button--primary:hover {
  background: var(--accent-dark);
}

.quick-facts {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.quick-facts li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  color: var(--muted);
}

.quick-facts strong {
  min-width: 96px;
  color: var(--text);
}

.hero-media {
  display: grid;
  gap: 14px;
}

.portrait {
  width: min(360px, 100%);
  margin-left: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.media-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.media-strip img,
.project-card img,
.media-card img {
  width: 100%;
  height: 180px;
  border: 1px solid var(--border);
  border-radius: 8px;
  object-fit: cover;
  background: var(--surface);
}

.section {
  padding: 34px 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.section-header p {
  max-width: 560px;
  margin-bottom: 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.project-card,
.publication,
.timeline-item,
.media-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
}

.card,
.publication,
.timeline-item {
  padding: 18px;
}

.card p,
.project-card p,
.publication p,
.timeline-item p,
.media-card p {
  color: var(--muted);
}

.card p:last-child,
.project-card p:last-child,
.publication p:last-child,
.timeline-item p:last-child,
.media-card p:last-child {
  margin-bottom: 0;
}

.project-card,
.media-card {
  overflow: hidden;
}

.project-card__body,
.media-card__body {
  padding: 16px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.92rem;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 18px;
}

.timeline-item time,
.meta {
  color: var(--muted);
  font-size: 0.94rem;
}

.publication-list {
  display: grid;
  gap: 12px;
}

.publication {
  display: grid;
  gap: 8px;
}

.publication-title {
  color: var(--text);
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.52fr);
  gap: 22px;
  align-items: start;
}

.note {
  border-left: 3px solid var(--accent);
  background: var(--surface);
  padding: 14px 16px;
  color: var(--muted);
}

.footer {
  margin-top: 38px;
  padding: 28px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.95rem;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 900px) {
  .site-header__inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
  }

  .hero,
  .split,
  .grid,
  .grid--three {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 38px;
  }

  .portrait {
    margin-left: 0;
  }

  h1 {
    font-size: 3.2rem;
  }

  .page-title {
    font-size: 2.75rem;
  }
}

@media (max-width: 620px) {
  .container {
    width: min(100% - 24px, 1120px);
  }

  .media-strip {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .section-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .quick-facts li {
    display: block;
  }

  .quick-facts strong {
    display: block;
    min-width: 0;
  }

  h1 {
    font-size: 2.55rem;
  }

  .page-title {
    font-size: 2.25rem;
  }
}