html {
  color-scheme: light;
}

body {
  margin: 0;
  padding: 56px max(36px, env(safe-area-inset-right)) 96px max(36px, env(safe-area-inset-left));
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.75;
  color: #1f2933;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.9), transparent 38%),
    linear-gradient(180deg, #f8f5ee 0%, #efe8db 100%);
}

body > * {
  max-width: 760px;
  margin: 0 auto;
  box-sizing: border-box;
  width: 100%;
}

header#title-block-header {
  margin-bottom: 2.25rem;
  padding: 1.5rem 1.75rem;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(159, 179, 200, 0.45);
  border-radius: 18px;
  box-shadow: 0 14px 30px rgba(16, 42, 67, 0.06);
}

h1,
h2,
h3 {
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  line-height: 1.15;
  color: #102a43;
}

h1 {
  font-size: 2.5rem;
  margin: 0 0 0.6rem;
  letter-spacing: -0.03em;
}

h2 {
  margin-top: 3rem;
  padding-top: 0.85rem;
  border-top: 1px solid #d9e2ec;
}

h3 {
  margin-top: 2rem;
}

p,
li {
  font-size: 1.03rem;
}

p {
  margin: 0 0 1.15rem;
  text-wrap: pretty;
}

a {
  color: #0b6e4f;
}

code {
  padding: 0.1rem 0.3rem;
  font-size: 0.92em;
  background: #e9eef2;
  border-radius: 4px;
}

hr {
  border: 0;
  border-top: 1px solid #bcccdc;
  margin: 2rem 0;
}

ul {
  padding-left: 1.25rem;
}

#contents + ul {
  padding: 1.1rem 1.25rem 1rem 1.6rem;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid #d9e2ec;
  border-radius: 14px;
}

#contents + ul li {
  margin: 0.35rem 0;
}

blockquote {
  margin: 1.5rem 0;
  padding-left: 1rem;
  border-left: 4px solid #9fb3c8;
  color: #486581;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.5rem 0;
}

th,
td {
  padding: 0.65rem 0.8rem;
  border: 1px solid #d9e2ec;
  text-align: left;
  vertical-align: top;
}

@media (max-width: 720px) {
  body {
    padding: 28px max(20px, env(safe-area-inset-right)) 56px max(26px, env(safe-area-inset-left));
    line-height: 1.68;
  }

  header#title-block-header {
    padding: 1.1rem 1rem;
    border-radius: 14px;
  }

  h1 {
    font-size: 2rem;
  }
}