:root {
  color-scheme: light dark;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  background: radial-gradient(circle at top, #1e293b, #0f172a);
  color: #e2e8f0;
  padding: 2rem 1.5rem 3rem;
}
main {
  width: min(620px, 100%);
  background: rgba(15, 23, 42, 0.82);
  border-radius: 22px;
  padding: clamp(2.5rem, 5vw, 3.5rem);
  text-align: center;
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: 0 26px 70px rgba(15, 23, 42, 0.5);
}
h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
p {
  font-size: 1.05rem;
  line-height: 1.75;
  opacity: 0.85;
  margin-bottom: 2rem;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.2rem;
  margin-bottom: 2.25rem;
}
.metric {
  text-align: left;
  background: rgba(15, 23, 42, 0.65);
  border-radius: 16px;
  padding: 1.35rem;
  border: 1px solid rgba(148, 163, 184, 0.18);
  backdrop-filter: blur(12px);
}
.metric .label {
  display: block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  opacity: 0.65;
  margin-bottom: 0.3rem;
}
.metric .value {
  font-size: 2rem;
  font-weight: 600;
  color: #f8fafc;
}
.metric .unit {
  font-size: 0.8rem;
  opacity: 0.6;
  margin-left: 0.25rem;
}
a.cta {
  display: inline-block;
  text-decoration: none;
  font-weight: 600;
  padding: 0.85rem 1.75rem;
  border-radius: 9999px;
  color: #0f172a;
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  box-shadow: 0 20px 40px rgba(129, 140, 248, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
a.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 45px rgba(129, 140, 248, 0.45);
}
footer {
  font-size: 0.95rem;
  opacity: 0.75;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}
footer .heart {
  color: #f87171;
  margin: 0 0.25rem;
}
@media (max-width: 540px) {
  body {
    padding: 1.75rem 1rem 2.5rem;
  }
  .metric .value {
    font-size: 1.7rem;
  }
}