:root {
  --surface: #ffffff;
  --ink: #1c1c1a;
  --ink-secondary: #5f5d57;
  --hairline: #e4e2dc;
  --accent: #1f6fbf;
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface: #0f0f0e;
    --ink: #eceae4;
    --ink-secondary: #9d9a92;
    --hairline: #2b2b29;
    --accent: #5aa2e8;
  }
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 16px 64px;
}

h1 { font-size: 32px; line-height: 1.2; margin: 4px 0 8px; }
h2 { font-size: 20px; margin: 36px 0 8px; padding-top: 20px; border-top: 1px solid var(--hairline); }
h3 { font-size: 17px; margin: 24px 0 4px; }
p, li { color: var(--ink); }
ul { padding-left: 20px; }
li { margin: 8px 0; }

a { color: var(--accent); }

.eyebrow {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-secondary);
}
.eyebrow a { color: inherit; text-decoration: none; }
.meta, .footer { color: var(--ink-secondary); font-size: 15px; }
.footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--hairline); }