*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  line-height: 1.6;
  color: #1f2933;
  background: #f4f6f8;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.site-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #d9e2ec;
}

.brand {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.tagline {
  margin: 0.25rem 0 0;
  color: #627d98;
}

.main h1 {
  margin-top: 0;
  font-size: 1.75rem;
}

.main h2 {
  margin-top: 2rem;
  font-size: 1.125rem;
}

.site-footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid #d9e2ec;
  color: #829ab1;
  font-size: 0.875rem;
}