/* Celyad Oncology USA site styles */
:root {
  color-scheme: dark;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #f4f7fb;
  background: #060812;
  line-height: 1.6;
  font-synthesis: none;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, rgba(64, 148, 255, 0.18), transparent 30%),
              radial-gradient(circle at bottom right, rgba(143, 104, 255, 0.16), transparent 28%),
              #05080f;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border: none;
  border-radius: 999px;
  font: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}
button:hover,
.btn:hover {
  transform: translateY(-1px);
}
.primary-btn {
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, #62b0ff, #9978ff);
  color: white;
  box-shadow: 0 18px 45px rgba(99, 144, 255, 0.15);
}
.secondary-btn {
  padding: 1rem 1.5rem;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.03);
  color: #d7def4;
}
.site-wrapper {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(3, 8, 20, 0.82);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}
.site-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.site-title span {
  color: #62b0ff;
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.2rem;
}
.nav-links a {
  color: rgba(255,255,255,0.78);
  font-size: 0.95rem;
}
.nav-links a:hover,
.nav-links a.active {
  color: #f4f7fb;
}
.hero {
  padding: 4rem 0 3rem;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 3rem;
  align-items: center;
}
.hero-copy h1 {
  margin: 0;
  max-width: 13ch;
  font-size: clamp(2.7rem, 4vw, 4.5rem);
  line-height: 0.95;
}
.hero-copy p {
  margin: 1.7rem 0 2.2rem;
  max-width: 46rem;
  color: #c8d4f4;
  font-size: 1.05rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero-visual {
  position: relative;
  min-height: 360px;
  border-radius: 32px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(74, 121, 255, 0.18), rgba(125, 76, 255, 0.14));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 28px 80px rgba(0, 0, 0, 0.25);
}
.visual-card {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}
.visual-card svg {
  width: min(100%, 520px);
  height: auto;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.22));
}
.section {
  padding: 4rem 0;
}
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(1.9rem, 2.3vw, 2.6rem);
}
.section-subtitle {
  color: #8da4d4;
}
.cards-grid {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.card {
  padding: 1.8rem;
  border-radius: 24px;
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(16px);
}
.card h3 {
  margin: 1.1rem 0 0.75rem;
  font-size: 1.15rem;
}
.card p {
  margin: 0;
  color: #bfc9e4;
}
.cta-panel {
  padding: 2.5rem;
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(255,255,255,0.03), rgba(255,255,255,0.06));
  border: 1px solid rgba(255,255,255,0.08);
  display: grid;
  gap: 1.25rem;
}
.cta-panel h2,
.cta-panel p {
  margin: 0;
}
.cta-panel p {
  color: #c8d4f4;
}
footer {
  padding: 3rem 0 1rem;
  color: #aab7dc;
}
.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.footer-brand {
  display: grid;
  gap: 1rem;
}
.footer-brand p {
  max-width: 22rem;
  color: #c8d4f4;
}
.footer-links,
.footer-contact {
  display: grid;
  gap: 0.9rem;
}
.footer-links a,
.footer-contact a {
  color: inherit;
}
.footer-links a:hover,
.footer-contact a:hover {
  color: #62b0ff;
}
.footer-note {
  margin-top: 2rem;
  font-size: 0.95rem;
  color: #7f8db9;
}
@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 680px) {
  .header-inner {
    flex-direction: column;
    align-items: stretch;
  }
  .nav-links {
    justify-content: center;
  }
  .hero {
    gap: 2rem;
  }
}