* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  max-width: 820px;
  margin: 0 auto;
  padding: 32px 16px;
  background: #f3f3f3;
  color: #222;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.page-wrap {
  background: #ffffff;
  border: 1px solid #d8d8d8;
  padding: 24px 22px 20px 22px;
}

.site-header {
  margin-bottom: 20px;
}

h1 {
  margin: 0 0 16px 0;
  font-size: 2.1rem;
  line-height: 1.2;
  font-weight: 600;
  color: #1a1a1a;
}

.lead {
  margin: 0 0 10px 0;
}

.email {
  margin: 0;
}

.intro, .note {
  margin: 0 0 14px 0;
}

.section-card {
  margin-top: 20px;
  padding: 16px 18px;
  background: #fafafa;
  border: 1px solid #e2e2e2;
  border-radius: 10px;
}

.section-card h2 {
  margin: 0 0 10px 0;
  font-size: 1.2rem;
  line-height: 1.3;
  font-weight: 600;
  color: #1f1f1f;
}

.section-card ul {
  margin: 0;
  padding-left: 22px;
}

.section-card li {
  margin: 8px 0;
}

main > p:last-of-type {
  margin: 24px 0 0 0;
  color: #555;
}

a {
  color: #0b57d0;
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid #e5e5e5;
  color: #666;
  font-size: 0.95rem;
}