:root {
  --bg: #ffffff;
  --fg: #1f2328;
  --muted: #656d76;
  --accent: #0969da;
  --track: #d0d7de;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --fg: #e6edf3;
    --muted: #8d96a0;
    --accent: #4493f8;
    --track: #30363d;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 16px;
  text-align: center;
}

#status {
  margin: 0;
  color: var(--muted);
}

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

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--track);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner[hidden] {
  display: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation-duration: 2.4s;
  }
}