:root {
  color-scheme: dark;
  --background: #050807;
  --surface: #0d1411;
  --border: rgba(255, 255, 255, 0.1);
  --text: #f2f7f4;
  --muted: #a6b2ac;
  --accent: #43d48a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgba(67, 212, 138, 0.12), transparent 34rem),
    var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

header,
main,
footer {
  width: min(820px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  padding: 52px 0 24px;
  border-bottom: 1px solid var(--border);
}

main {
  padding: 32px 0 64px;
}

footer {
  padding: 24px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

h1,
h2 {
  line-height: 1.2;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(34px, 7vw, 52px);
}

h2 {
  margin-top: 36px;
  font-size: 22px;
}

p,
li {
  color: var(--muted);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 22px;
}

.eyebrow {
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.card {
  margin: 20px 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.updated {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

strong {
  color: var(--text);
}