:root {
  --color-bg: #ffffff;
  --color-text: #1c1c1c;
  --color-muted: #6b6b6b;
  --color-accent: #2b4c7e;
  --color-border: #e4e4e4;
  --max-width: 640px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 1.25rem;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

.site-header,
main,
.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-header {
  padding: 3.5rem 0 2rem;
  text-align: center;
}

.site-header h1 {
  margin: 0 0 0.5rem;
  font-size: 2.25rem;
}

.tagline {
  margin: 0 0 0.75rem;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.badge {
  display: inline-block;
  margin: 0;
  padding: 0.2rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--color-accent);
}

main {
  padding: 1rem 0 3rem;
}

section {
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
}

section:first-child {
  border-top: none;
}

h2 {
  font-size: 1.15rem;
  margin: 0 0 0.6rem;
}

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

.site-footer {
  padding: 1.5rem 0 3rem;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--color-border);
}