:root {
  --accent: #007aff;
  --text: #1c1c1e;
  --muted: #6c6c70;
  --card: #f2f2f7;
  --border: #e5e5ea;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 16px 64px;
  color: var(--text);
  background-color: #ffffff;
}

header {
  margin-bottom: 32px;
}

h1 {
  font-size: 1.9em;
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 8px;
  margin-bottom: 8px;
  word-break: break-all;
}

.tagline {
  color: var(--muted);
  font-size: 1em;
  margin: 0;
}

h2 {
  font-size: 1.2em;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 12px;
  color: var(--accent);
}

dl.info {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 24px;
  margin: 0;
}

dl.info dt {
  font-weight: 600;
  color: var(--muted);
}

dl.info dd {
  margin: 0;
}

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

ul.links li {
  margin-bottom: 8px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  margin-top: 56px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85em;
}

@media (max-width: 480px) {
  dl.info {
    grid-template-columns: 1fr;
    gap: 2px 0;
  }
  dl.info dd {
    margin-bottom: 12px;
  }
}