:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --accent: #0f172a;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 16px 48px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 18px 28px;
}

h1 {
  margin: 0 0 8px;
  font-size: 1.55rem;
  line-height: 1.35;
  font-weight: 800;
}

.meta {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 0.92rem;
}

h2 {
  margin: 28px 0 10px;
  font-size: 1.15rem;
  font-weight: 800;
}

h3 {
  margin: 18px 0 8px;
  font-size: 1.02rem;
  font-weight: 700;
}

p {
  margin: 0 0 12px;
}

ul {
  margin: 0 0 12px;
  padding-inline-start: 1.25rem;
}

li {
  margin: 0 0 8px;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
  font-size: 0.95rem;
}

.nav a {
  color: var(--text);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer .nav {
  margin-top: 12px;
}