* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: #f8f9ff;
  color: #0b1c30;
  font:
    17px/1.7 system-ui,
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
}
header,
main,
footer {
  max-width: 800px;
  margin: auto;
  padding: 24px;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
header a {
  font-weight: 750;
  text-decoration: none;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
}
main {
  padding-top: 48px;
  padding-bottom: 60px;
}
h1 {
  font-size: clamp(32px, 6vw, 48px);
  line-height: 1.12;
  letter-spacing: -1.5px;
  margin: 8px 0 24px;
}
h2 {
  font-size: 23px;
  line-height: 1.3;
  margin: 38px 0 12px;
}
p,
li {
  color: #4c5668;
}
li {
  margin-bottom: 12px;
}
.intro {
  font-size: 22px;
  line-height: 1.5;
}
a {
  color: #005bbf;
  text-underline-offset: 3px;
}
.button {
  display: inline-block;
  background: #005bbf;
  color: white;
  padding: 14px 22px;
  border-radius: 14px;
  text-decoration: none;
}
footer {
  font-size: 14px;
  border-top: 1px solid #e5eaf3;
}
a:focus-visible {
  outline: 3px solid #8ab8ff;
  outline-offset: 5px;
}
@media (max-width: 560px) {
  header {
    align-items: flex-start;
    flex-direction: column;
  }
  main {
    padding-top: 20px;
  }
}