:root {
  color-scheme: dark light;
  --bg: #0f0f10;
  --fg: #e6e4df;
  --muted: #9a978f;
  --line: #2a2a2c;
  --link: #d9d5cc;
  --accent: #b8b3a7;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f5f2;
    --fg: #1c1c1b;
    --muted: #666460;
    --line: #dedcd6;
    --link: #2a2a28;
    --accent: #4a4844;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

header.site {
  padding: 1rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}

header.site a {
  color: var(--fg);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 0.95rem;
}

h1 {
  font-size: 1.6rem;
  line-height: 1.35;
  font-weight: 600;
  margin: 0 0 1rem;
  letter-spacing: 0.01em;
}

h2 {
  font-size: 1.15rem;
  line-height: 1.4;
  font-weight: 600;
  margin: 2.5rem 0 0.75rem;
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.75rem 0 0.5rem;
}

p, ul, ol {
  margin: 0 0 1rem;
}

ul, ol {
  padding-left: 1.4rem;
}

li {
  margin-bottom: 0.4rem;
}

li ul {
  margin-top: 0.4rem;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-color: var(--fg);
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.tagline {
  font-size: 1.25rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.lead {
  margin-bottom: 2rem;
}

.en {
  color: var(--muted);
}

.links {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}

.links li {
  padding: 0.6rem 0;
  border-top: 1px solid var(--line);
}

.links li:last-child {
  border-bottom: 1px solid var(--line);
}

.links a {
  text-decoration: none;
}

.links a:hover {
  text-decoration: underline;
}

.store {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.6rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

hr.sep {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 3rem 0;
}

footer.site {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

footer.site nav a {
  margin-right: 1rem;
}

@media (max-width: 480px) {
  body {
    font-size: 15px;
  }
  .wrap {
    padding: 1rem 1rem 3rem;
  }
  h1 {
    font-size: 1.4rem;
  }
}