:root {
  color-scheme: dark;
  --bg: #1a1918;
  --paper: #f4efe6;
  --dim: #b8b0a4;
  --coral: #e05a4e;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--paper);
  padding: 32px 20px 64px;
}

main {
  max-width: 720px;
  margin: 0 auto;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  margin-bottom: 28px;
  font-size: 0.95rem;
}

nav a {
  color: var(--coral);
}

h1 {
  font-size: 1.6rem;
  margin: 0 0 8px;
}

.updated {
  color: var(--dim);
  margin: 0 0 28px;
}

article {
  white-space: pre-wrap;
  line-height: 1.7;
  font-size: 0.98rem;
}

article + h2 {
  margin-top: 48px;
}

h2 {
  font-size: 1.2rem;
  margin: 0 0 16px;
}

.contact {
  margin-top: 40px;
  color: var(--dim);
}

.contact a {
  color: var(--coral);
}