:root {
  --bg: #f7f6f1;
  --surface: #ffffff;
  --ink: #20242a;
  --muted: #5f6873;
  --line: #d9dde2;
  --accent: #146c70;
  --accent-dark: #0e4d50;
  --warm: #b94f2b;
  --soft: #eef4f4;
  --shadow: 0 18px 45px rgba(32, 36, 42, 0.09);
}

* {
  box-sizing: border-box;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 3vw, 2.5rem);
  background: rgba(247, 246, 241, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  min-width: 15rem;
  color: var(--ink);
}

.brand-mark {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  color: #fff;
  font-weight: 800;
  background: var(--accent);
  border-radius: 0.45rem;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
}

.site-nav a {
  padding: 0.45rem 0.65rem;
  color: var(--ink);
  border-radius: 0.4rem;
  font-size: 0.93rem;
}

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

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--surface);
  border-radius: 0.4rem;
  padding: 0.45rem 0.7rem;
}

.hero {
  min-height: calc(100vh - 5rem);
  display: grid;
  align-items: end;
  padding: clamp(5rem, 11vw, 8rem) clamp(1rem, 5vw, 5rem) clamp(3rem, 7vw, 5rem);
  color: #fff;
  background:
    linear-gradient(90deg, rgba(10, 30, 34, 0.88), rgba(10, 30, 34, 0.46)),
    url("images/lab-hero.svg") center / cover;
}

.hero-content {
  max-width: 48rem;
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--warm);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #f7c59b;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 5.8rem);
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

h3 {
  font-size: 1.2rem;
}

.lead {
  max-width: 42rem;
  margin: 1rem 0 0;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  color: #fff;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 0.45rem;
  font-weight: 700;
}

.button:hover {
  color: #fff;
  background: var(--accent-dark);
}

.button.secondary {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.65);
}

.section,
.page {
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 5vw, 5rem);
}

.section-heading,
.page-heading {
  max-width: 52rem;
  margin-bottom: 1.5rem;
}

.page-heading p:not(.eyebrow) {
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.25rem, 4vw, 3rem);
  max-width: 70rem;
}

.muted {
  background: var(--soft);
}

.stat-grid,
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.member-sections,
.equipment-sections {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.member-group,
.content-group {
  display: grid;
  gap: 1rem;
}

.member-group-heading,
.content-group-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--line);
}

.member-group-heading h2,
.content-group-heading h2 {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.member-group-heading span,
.content-group-heading span {
  color: var(--muted);
  font-size: 0.94rem;
}

.stat-grid article,
.card,
.thesis,
.publication {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
}

.stat-grid article {
  padding: 1.25rem;
}

.stat-grid strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1.2rem;
}

.stat-grid span,
.meta,
.contact,
.publication-details,
.card p,
.thesis p,
.publication p {
  color: var(--muted);
}

.card {
  padding: 1.2rem;
}

.card h2,
.thesis h2,
.publication h2 {
  font-size: 1.25rem;
}

.role {
  margin: 0.15rem 0 0.8rem;
  color: var(--warm);
  font-weight: 700;
}

.contact {
  display: grid;
  gap: 0.25rem;
  margin: 0.9rem 0;
  font-size: 0.94rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.85rem;
}

.tag {
  padding: 0.25rem 0.5rem;
  color: var(--accent-dark);
  background: var(--soft);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.feature-list {
  display: grid;
  gap: 0.4rem;
  margin: 0.95rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.feature-list li::marker {
  color: var(--accent);
}

.stack {
  display: grid;
  gap: 1rem;
  max-width: 75rem;
}

.thesis,
.publication {
  padding: 1.25rem;
}

.record-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.status {
  flex: 0 0 auto;
  padding: 0.2rem 0.5rem;
  color: var(--accent-dark);
  background: var(--soft);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
}

.publication-details {
  margin: 0.5rem 0;
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.9rem;
}

.link-row a {
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem clamp(1rem, 3vw, 2.5rem);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.notice {
  padding: 1rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: 0.5rem;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
  }

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

  .site-nav {
    display: none;
    position: absolute;
    top: 4.5rem;
    left: 1rem;
    right: 1rem;
    flex-direction: column;
    padding: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
  }

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

  .two-column,
  .stat-grid,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .member-group-heading,
  .content-group-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    min-height: 34rem;
  }

  .record-header,
  .site-footer {
    flex-direction: column;
  }
}