* { box-sizing: border-box; }
body {
  font-family: system-ui, sans-serif;
  margin: 0;
  color: #1a1a1a;
  background: #fafafa;
}
.topbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: #1f2937;
  color: #fff;
}
.topbar .brand { color: #fff; font-weight: 600; text-decoration: none; }
.topbar nav { display: flex; gap: 1rem; flex: 1; }
.topbar nav a { color: #d1d5db; text-decoration: none; }
.topbar nav a:hover { color: #fff; }
.topbar .acting-as { font-size: 0.9rem; color: #d1d5db; }
.topbar .acting-as a { color: #93c5fd; }
main { padding: 1.5rem; max-width: 960px; margin: 0 auto; }
.hint { color: #555; font-size: 0.9rem; }
table { border-collapse: collapse; width: 100%; margin: 1rem 0; }
th, td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid #ddd; }
th { background: #f0f0f0; }
form.inline { display: inline; }
.nav-cards { list-style: none; padding: 0; display: flex; gap: 1rem; }
.nav-cards a {
  display: block; padding: 1rem 1.5rem; background: #fff; border: 1px solid #ddd;
  border-radius: 6px; text-decoration: none; color: #1a1a1a;
}
.error { color: #b91c1c; }
tr.row-error td { color: #b91c1c; }
tr.row-ok td { color: #15803d; }
.recent-changes { margin-top: 2rem; font-size: 0.9rem; }
.recent-changes td, .recent-changes th { padding: 0.3rem 0.5rem; }

/* Login / logout (app/routers/auth.py) */
.inline-form { display: inline; margin: 0; }
.link-button { background: none; border: none; padding: 0; color: #93c5fd; font: inherit; cursor: pointer; text-decoration: underline; }
.auth-box { max-width: 24rem; margin: 3rem auto; }
.auth-box label { display: block; }
.auth-box input[type=text], .auth-box input[type=password] { width: 100%; box-sizing: border-box; }
.notice { background: #fef9c3; border: 1px solid #facc15; padding: 0.75rem; }
.success { color: #15803d; }