body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
  color: #1a1a1a;
  background: #f6f6f7;
}

.nav {
  display: flex;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  background: #ffffff;
  border-bottom: 1px solid #e1e3e5;
}

.nav a {
  color: #1a1a1a;
  text-decoration: none;
  font-weight: 500;
}

.nav a:hover {
  text-decoration: underline;
}

.content {
  padding: 1.5rem;
  max-width: 960px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
}

th, td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid #e1e3e5;
}

form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 480px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.9rem;
}

input, select, button {
  padding: 0.5rem;
  font-size: 1rem;
}

button {
  align-self: flex-start;
  cursor: pointer;
}

.banner {
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.banner-error {
  background: #fed3d1;
  color: #5c1a1a;
}

.banner-ok {
  background: #d1f7dc;
  color: #0a3a1a;
}