:root {
  color-scheme: light;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: #171717;
  background: #fffdf8;
  font-size: 16px;
  line-height: 1.65;
}

header,
main,
footer {
  width: min(820px, calc(100% - 36px));
  margin-inline: auto;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid #d4cec2;
}

header img {
  width: 170px;
}

header a {
  color: #171717;
  font-weight: 800;
  text-underline-offset: 4px;
}

main {
  padding: 52px 0 80px;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
}

h1 {
  max-width: 720px;
  margin: 0 0 18px;
  font-size: clamp(38px, 7vw, 68px);
  line-height: 1.05;
}

h2 {
  margin: 44px 0 12px;
  padding-top: 24px;
  border-top: 1px solid #d4cec2;
  font-size: 30px;
}

h3 {
  margin: 28px 0 8px;
  font-size: 18px;
}

p,
li {
  color: #45433f;
}

.summary {
  max-width: 700px;
  font-size: 19px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 30px 0;
}

nav a {
  padding: 8px 12px;
  border: 1px solid #d4cec2;
  border-radius: 4px;
  color: #171717;
  font-weight: 800;
  text-decoration: none;
}

section {
  scroll-margin-top: 20px;
}

.fact {
  margin: 24px 0;
  padding: 18px 20px;
  border-left: 4px solid #167c78;
  background: #f5f1e8;
}

footer {
  padding: 28px 0 48px;
  border-top: 1px solid #d4cec2;
  color: #77736b;
  font-size: 13px;
}

a {
  color: #116b68;
}

@media (max-width: 540px) {
  header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  main {
    padding-top: 36px;
  }
}