:root {
  --bg: #fafaf9;
  --fg: #1f2933;
  --muted: #6b7280;
  --accent: #bf0000;
  --card-bg: #ffffff;
  --border: #e5e7eb;
  --max-width: 720px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic", sans-serif;
  line-height: 1.8;
}

header.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--card-bg);
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 16px;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  color: var(--fg);
  text-decoration: none;
}

.provisional-badge {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 10px;
  margin-left: 8px;
  vertical-align: middle;
}

main .wrap {
  padding-top: 32px;
  padding-bottom: 32px;
}

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

h2 {
  font-size: 1.15rem;
  margin-top: 2em;
  border-left: 4px solid var(--accent);
  padding-left: 10px;
}

.notice-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 20px 0;
}

.notice-box.disclosure {
  border-left: 4px solid var(--accent);
}

a {
  color: var(--accent);
}

footer.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

footer.site-footer .wrap {
  padding-top: 20px;
  padding-bottom: 32px;
  font-size: 0.85rem;
  color: var(--muted);
}

footer.site-footer nav {
  margin-bottom: 10px;
}

footer.site-footer nav a {
  margin-right: 16px;
}

.status-list {
  padding-left: 1.2em;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181c;
    --fg: #e5e7eb;
    --muted: #9aa3ad;
    --accent: #ff6b6b;
    --card-bg: #1c2126;
    --border: #2b3138;
  }
}