:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #172033;
  background: #eaf3fb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, rgba(71,163,218,.22), transparent 30rem),
    linear-gradient(180deg, #f6fbff 0%, #eaf3fb 100%);
}
.experiment {
  width: min(920px, calc(100% - 28px));
  margin: 0 auto;
  padding: 48px 0 72px;
}
.experiment-head {
  padding: clamp(28px, 5vw, 56px);
  color: #fff;
  background: linear-gradient(135deg, #13263d, #176aa0 60%, #47a3da);
  border-radius: 28px;
  box-shadow: 0 24px 70px rgba(17,44,70,.18);
}
.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,.32);
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .12em;
}
h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(2.45rem, 8vw, 5.6rem);
  line-height: .95;
  letter-spacing: -.055em;
}
.lead {
  max-width: 720px;
  margin: 24px 0 0;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  line-height: 1.6;
  color: rgba(255,255,255,.9);
}
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 26px;
  font-size: .93rem;
  color: rgba(255,255,255,.76);
}
.archive-note,
.lab-link,
.content {
  margin-top: 22px;
  border-radius: 22px;
  background: rgba(255,255,255,.93);
  box-shadow: 0 16px 45px rgba(17,44,70,.08);
}
.archive-note {
  padding: 20px 24px;
  border-left: 5px solid #47a3da;
  line-height: 1.65;
}
.content {
  padding: clamp(24px, 5vw, 52px);
}
.content section + section {
  margin-top: 42px;
  padding-top: 34px;
  border-top: 1px solid #dfe9f1;
}
h2 {
  margin: 0 0 16px;
  color: #123d5d;
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.18;
}
h3 {
  margin: 26px 0 10px;
  color: #176a9f;
  font-size: 1.18rem;
}
p, li {
  font-size: 1.02rem;
  line-height: 1.78;
}
ul {
  padding-left: 1.35rem;
}
.lab-link {
  padding: 26px 28px;
}
.lab-link p {
  margin: 0 0 8px;
}
.lab-link a {
  display: inline-flex;
  margin-top: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  background: #176a9f;
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}
.lab-link a:hover,
.lab-link a:focus-visible {
  background: #123d5d;
}
@media (max-width: 640px) {
  .experiment { padding-top: 18px; }
  .experiment-head { border-radius: 20px; }
  .content, .archive-note, .lab-link { border-radius: 18px; }
}