:root {
  --bg: #ffffff;
  --fg: #16181d;
  --muted: #5b616e;
  --accent: #1f5eff;
  --accent-fg: #ffffff;
  --line: #e3e6ec;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --fg: #eef0f4;
    --muted: #a3a9b6;
    --accent: #5b8cff;
    --accent-fg: #0f1115;
    --line: #2a2e37;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 34rem; margin: 0 auto; padding: 2rem 1rem; }
h1 { font-size: 1.25rem; margin: 0 0 0.25rem; }
.origin { color: var(--muted); font-size: 0.875rem; margin: 0 0 1.5rem; }
#summary { list-style: none; padding: 0; margin: 0 0 1.5rem; border-top: 1px solid var(--line); }
#summary li { padding: 0.625rem 0; border-bottom: 1px solid var(--line); }
#summary li:first-child { font-weight: 600; }
button {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 0;
  border-radius: 0.5rem;
  background: var(--accent);
  color: var(--accent-fg);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button:disabled { opacity: 0.5; cursor: default; }
#status { min-height: 1.5rem; margin-top: 1rem; }