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

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.5;
  color: #1a1a1a;
  background: #f5f7fa;
}

.shell {
  max-width: 48rem;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
}

.lead {
  margin: 0 0 1.5rem;
  color: #4a5568;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

nav a {
  display: block;
  padding: 0.875rem 1rem;
  background: #fff;
  border: 1px solid #d8dee9;
  border-radius: 0.5rem;
  color: #0f4c81;
  text-decoration: none;
  font-weight: 600;
}

nav a:hover {
  border-color: #0f4c81;
}

.badge {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  background: #e8edf3;
  border-radius: 999px;
}

.display-placeholder,
.staff-placeholder,
.admin-placeholder {
  margin-top: 2rem;
  padding: 1.25rem;
  background: #fff;
  border: 1px dashed #cbd5e1;
  border-radius: 0.5rem;
  color: #64748b;
}