body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f5f7;
  color: #1f2933;
}

.portal-shell {
  max-width: 48rem;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.portal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

#logout-button {
  border: none;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  background: #1f6feb;
  color: #fff;
  cursor: pointer;
}

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

.site-item a,
.empty-state {
  display: block;
  padding: 1rem;
  border-radius: 0.75rem;
  background: #fff;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.1);
}