:root {
  --bg: #0d0d12;
  --card: #17171c;
  --border: #26262c;
  --text: #e4e4e7;
  --muted: #a1a1aa;
  --accent: #22c55e;
  --link: #4ade80;
  --maxw: 760px;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  line-height: 1.6;
}
header {
  padding: 32px 20px 12px;
  text-align: center;
}
header a {
  color: var(--text);
  text-decoration: none;
}
header h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.3px;
}
header .tagline {
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
}
nav {
  padding: 0 20px;
  text-align: center;
  margin-bottom: 20px;
}
nav a {
  color: var(--link);
  text-decoration: none;
  margin: 0 10px;
  font-size: 14px;
}
nav a:hover {
  text-decoration: underline;
}
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px 20px 60px;
}
main.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
}
h2 {
  color: var(--text);
  font-size: 24px;
  margin: 0 0 8px;
  letter-spacing: -0.2px;
}
h3 {
  color: var(--text);
  font-size: 17px;
  margin: 24px 0 6px;
}
.meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 24px;
}
p,
li {
  font-size: 15px;
  color: #d4d4d8;
}
ul {
  padding-left: 22px;
}
li {
  margin-bottom: 6px;
}
a {
  color: var(--link);
}
a:hover {
  text-decoration: underline;
}
hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 28px 0;
}
footer {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 20px;
}
.badge {
  display: inline-block;
  background: var(--accent);
  color: #0a0a0a;
  padding: 2px 8px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}