*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  color-scheme: light dark;
  --text: #1f2328;
  --muted: #59636e;
  --bg: #ffffff;
  --border: #d1d9e0;
  --link: #0969da;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e6edf3;
    --muted: #9198a1;
    --bg: #0d1117;
    --border: #3d444d;
    --link: #4493f8;
  }
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

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

.site-header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.site-user {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  color: var(--muted);
}

.inline-form {
  display: inline;
  margin: 0;
}

.button-link {
  padding: 0;
  border: 0;
  font: inherit;
  color: var(--link);
  text-decoration: underline;
  background: none;
  cursor: pointer;
}

.muted {
  color: var(--muted);
}

.site-title {
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

.content {
  max-width: 48rem;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}