:root {
  color-scheme: light;
  --ink: #3d4a4c;
  --subtle: #718083;
  --line: rgba(117, 166, 158, 0.22);
  --mint: #d8ece8;
  --paper: rgba(255, 255, 255, 0.72);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 32px 18px;
  color: var(--ink);
  background: linear-gradient(145deg, #eff9f7, #f4f6fb);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.8;
}

.card {
  width: min(720px, 100%);
  margin: 0 auto;
  padding: clamp(28px, 6vw, 56px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 32px;
  background: var(--paper);
  box-shadow: 0 24px 70px rgba(87, 121, 117, 0.08);
  backdrop-filter: blur(18px);
}

.compact {
  margin-top: 12vh;
  text-align: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--subtle);
  font-size: 12px;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0 0 32px;
  font-size: clamp(26px, 6vw, 38px);
  font-weight: 600;
  letter-spacing: 0.02em;
}

h2 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
}

section {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

p {
  margin: 0;
}

a {
  color: #527d76;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

nav a,
.back {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--mint);
}

.updated {
  margin: 26px 0;
  color: var(--subtle);
  font-size: 12px;
}