:root {
  --bg: #07111f;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(7, 17, 31, 0.78);
  --line: rgba(255, 255, 255, 0.12);
  --text: #edf4ff;
  --muted: #b7c6de;
  --accent: #66c6ff;
  --accent-soft: rgba(102, 198, 255, 0.14);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(57, 159, 255, 0.18), transparent 26%),
    radial-gradient(circle at right bottom, rgba(38, 208, 124, 0.12), transparent 24%),
    var(--bg);
  color: var(--text);
}

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

 a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 48px;
}

.site-header,
.section-card,
.site-footer {
  backdrop-filter: blur(16px);
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px 22px;
  margin-bottom: 20px;
  background: rgba(6, 14, 26, 0.72);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.nav a {
  color: var(--muted);
  font-size: 0.96rem;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

main {
  display: grid;
  gap: 20px;
}

.section-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 28px;
  padding: 32px;
  min-height: 520px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 8px 12px;
  margin-bottom: 18px;
  border-radius: 999px;
  border: 1px solid rgba(102, 198, 255, 0.26);
  background: var(--accent-soft);
  color: #bfe9ff;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(3rem, 6vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.12rem;
  line-height: 1.3;
}

.hero-lead {
  margin-top: 22px;
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--text);
  max-width: 62ch;
}

.hero-text,
.section-header p,
.text-card p,
.quote-card p,
.feature-box p,
.publication-body p,
.contact-card p {
  color: var(--muted);
  line-height: 1.76;
}

.hero-text {
  margin-top: 18px;
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 16px;
  border: 1px solid transparent;
  font-weight: 600;
}

.button-primary {
  background: linear-gradient(135deg, rgba(104, 198, 255, 0.95), rgba(85, 145, 255, 0.95));
  color: #031120;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--line);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: auto;
  padding-top: 26px;
}

.stats-grid article,
.mini-grid article {
  padding: 16px;
  border-radius: 20px;
  background: rgba(7, 17, 31, 0.6);
  border: 1px solid var(--line);
}

.stats-grid strong,
.mini-grid strong {
  display: block;
  font-size: 1.4rem;
}

.stats-grid span,
.mini-grid span,
.contact-box span,
.publication-meta,
.media-note {
  color: var(--muted);
}

.stats-grid span,
.mini-grid span,
.contact-box span {
  display: block;
  margin-top: 6px;
  line-height: 1.5;
}

.hero-media {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-frame {
  overflow: hidden;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(8, 14, 26, 0.88);
}

.hero-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 360px;
}

.media-note {
  margin-top: 12px;
  font-size: 0.92rem;
}

.content-grid,
.activity-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.text-card,
.quote-card,
.image-card,
.contact-card,
.profiles-card,
#research,
#publications {
  padding: 30px;
}

.clean-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: grid;
  gap: 12px;
}

.clean-list li {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(7, 17, 31, 0.58);
  border: 1px solid var(--line);
  color: var(--muted);
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: end;
  margin-bottom: 24px;
}

.section-header p {
  max-width: 48ch;
}

.feature-grid,
.link-grid,
.mini-grid {
  display: grid;
  gap: 16px;
}

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

.feature-box {
  padding: 22px;
  border-radius: 22px;
  background: rgba(7, 17, 31, 0.62);
  border: 1px solid var(--line);
}

.feature-box p {
  margin-top: 10px;
}

.publications-header {
  align-items: center;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-button {
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  cursor: pointer;
}

.filter-button.is-active {
  background: var(--accent-soft);
  color: #dff5ff;
  border-color: rgba(102, 198, 255, 0.24);
}

.publication-list {
  display: grid;
  gap: 14px;
}

.publication-card {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 18px;
  padding: 22px;
  border-radius: 22px;
  background: rgba(7, 17, 31, 0.62);
  border: 1px solid var(--line);
}

.publication-card.is-hidden {
  display: none;
}

.publication-year {
  width: fit-content;
  height: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid rgba(102, 198, 255, 0.2);
  color: #cfefff;
  font-weight: 700;
}

.publication-meta {
  margin-top: 8px;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.publication-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.publication-links a,
.link-grid a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.image-card {
  overflow: hidden;
  min-height: 420px;
}

.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.link-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.contact-card {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 20px;
  align-items: start;
}

.contact-box {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(7, 17, 31, 0.58);
  border: 1px solid var(--line);
}

.contact-box strong {
  display: block;
  margin-top: 6px;
  line-height: 1.5;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 20px;
  padding: 22px;
  color: var(--muted);
  background: rgba(6, 14, 26, 0.72);
  border: 1px solid var(--line);
  border-radius: 22px;
}

@media (max-width: 1024px) {
  .hero,
  .content-grid,
  .activity-grid,
  .contact-card,
  .feature-grid,
  .link-grid {
    grid-template-columns: 1fr;
  }

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

  .publication-links {
    flex-direction: row;
    flex-wrap: wrap;
  }

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

@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 18px, 1200px);
    padding-top: 10px;
  }

  .site-header,
  .hero,
  .text-card,
  .quote-card,
  .image-card,
  .contact-card,
  .profiles-card,
  #research,
  #publications,
  .site-footer {
    padding: 20px;
  }

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

  .nav {
    gap: 10px 12px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .hero-frame img {
    min-height: 420px;
  }
}