:root {
  --navy: #023347;
  --ink: #17262d;
  --muted: #566570;
  --teal: #087985;
  --mist: #e8f7f7;
  --line: #cbdfe2;
  --paper: #f7fafa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1rem/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.skip { position: absolute; top: -80px; }
.skip:focus { top: 8px; left: 8px; z-index: 10; padding: 12px; background: #fff; }

main { width: min(100%, 700px); margin: 0 auto; padding: 36px 22px 56px; }

.hero { padding: 20px 0 34px; }
.hero img { display: block; width: 168px; height: auto; margin-bottom: 42px; }
.eyebrow, .label { color: var(--teal); font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 14px; color: var(--navy); font-size: clamp(2.3rem, 9vw, 4.2rem); line-height: 1; letter-spacing: -.055em; }
.hero > p:last-child { max-width: 530px; margin: 0; color: var(--muted); font-size: 1.08rem; }

.lab-list { display: grid; gap: 14px; }
.lab-card {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 28px;
  gap: 14px;
  align-items: start;
  padding: 22px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  transition: border-color .18s, transform .18s, box-shadow .18s;
}
.lab-card:hover { border-color: var(--teal); transform: translateY(-2px); box-shadow: 0 12px 30px #183b4812; }
.lab-card:focus-visible { outline: 3px solid #b78212; outline-offset: 4px; }
.number { display: grid; width: 32px; height: 32px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--teal); font-size: .72rem; font-weight: 700; }
.lab-card h2 { margin: 7px 0 9px; color: var(--navy); font-size: 1.32rem; line-height: 1.22; letter-spacing: -.025em; }
.lab-card p { margin: 0; color: var(--muted); font-size: .95rem; }
.arrow { color: var(--teal); font-size: 1.55rem; line-height: 1.2; transition: transform .18s; }
.lab-card:hover .arrow { transform: translateX(3px); }

@media (max-width: 359px) {
  main { padding-inline: 16px; }
  .hero img { margin-bottom: 34px; }
  .lab-card { grid-template-columns: 30px minmax(0, 1fr); padding: 18px 15px; }
  .arrow { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}