/* OAuth error page. Plain CSS (no Tailwind runtime) so /oauth/* can use a
   strict CSP without 'unsafe-inline' styles. */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: #f1f5f9;
  color: #475569;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}
.card {
  width: 100%;
  max-width: 24rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.1), 0 1px 2px rgba(15, 23, 42, 0.06);
  padding: 24px;
}
h1 { margin: 0 0 16px; font-size: 20px; font-weight: 600; color: #1e293b; }
p { margin: 0 0 16px; }
.detail { margin-bottom: 8px; }
.small { font-size: 12px; color: #64748b; }