:root {
  --ground: #f6f3fb;
  --ink: #1b1530;
  --muted: rgba(27, 21, 48, 0.68);
  --card: rgba(255, 255, 255, 0.72);
  --line: rgba(27, 21, 48, 0.14);
  --accent: #6b4fd8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #14101f;
    --ink: #f4f1fb;
    --muted: rgba(244, 241, 251, 0.7);
    --card: rgba(255, 255, 255, 0.08);
    --line: rgba(255, 255, 255, 0.18);
    --accent: #a995f2;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 36rem; margin: 0 auto; padding: 3rem 1.25rem 4rem; }
h1 { font-size: 2rem; line-height: 1.15; margin: 0 0 0.75rem; letter-spacing: -0.02em; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.5rem; }
p, li { color: var(--muted); }
a { color: var(--accent); }
.brand { font-weight: 700; letter-spacing: -0.01em; margin-bottom: 2.5rem; display: block; color: var(--ink); text-decoration: none; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 1.5rem; padding: 1.25rem; margin: 1.5rem 0; }
.code { font: 600 1.4rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--ink); letter-spacing: 0.04em; word-break: break-all; }
.button {
  display: block; text-align: center; text-decoration: none; font-weight: 600;
  background: var(--ink); color: var(--ground); border-radius: 999px; padding: 1rem 1.5rem; margin-top: 0.75rem;
}
.button[aria-disabled="true"] { background: var(--line); color: var(--muted); pointer-events: none; }
.pending { border-left: 4px solid var(--accent); padding: 0.25rem 1rem; background: var(--card); border-radius: 0.5rem; }
.pending p { margin: 0.4rem 0; color: var(--ink); }
[hidden] { display: none !important; }
footer { margin-top: 3rem; font-size: 0.9rem; }
footer a { margin-right: 1rem; }
.spaced { margin-top: 3rem; }
.todo { border-bottom: 1px dashed var(--accent); color: var(--ink); }
.updated { font-size: 0.9rem; margin: 0.75rem 0 0; }