:root {
  color-scheme: light dark;
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #10213a;
  --muted: #4f5f75;
  --accent: #0e95b9;
  --border: #d9e2ee;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #07142a;
    --card: #0e213e;
    --text: #eaf2ff;
    --muted: #b2c3dc;
    --accent: #2ac8e6;
    --border: #244061;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
}

h1,
h2,
h3 {
  margin-top: 0;
}

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

a:hover {
  text-decoration: underline;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

nav a {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
}

.muted {
  color: var(--muted);
}

ul {
  padding-left: 22px;
}

.footer {
  margin-top: 24px;
  font-size: 14px;
  color: var(--muted);
}