:root {
  --paper: #f7f1e6;
  --ink: #1f1a17;
  --muted: #6b625a;
  --sun: #bc002d;
  --line: #e4dccd;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171412;
    --ink: #f2ebe0;
    --muted: #a59a8e;
    --sun: #e0334f;
    --line: #2c2723;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.55 ui-sans-serif, system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  padding: env(safe-area-inset-top) 16px env(safe-area-inset-bottom);
  max-width: 720px;
  margin-inline: auto;
}
.masthead { text-align: center; padding: 48px 0 24px; border-bottom: 1px solid var(--line); }
.masthead h1 { font-size: 1.6rem; line-height: 1.2; margin: 12px 0 6px; }
.masthead h1 span { color: var(--sun); letter-spacing: 0.08em; }
.tagline { color: var(--muted); margin: 0; }
main { padding: 24px 0; }
.placeholder { color: var(--muted); text-align: center; }
footer { padding: 16px 0 32px; text-align: center; font-size: 0.85rem; color: var(--muted); }
.status.offline { color: var(--sun); }