body {
  font-family: system-ui, sans-serif;
  background: #f7f7f7;
  margin: 0;
}

.container {
  max-width: 720px;
  margin: auto;
  padding: 16px;
  background: #fff;
}

h1 {
  font-size: 1.6rem;
}

.intro {
  color: #444;
}

label {
  display: block;
  margin-top: 12px;
}

input, select {
  width: 100%;
  padding: 8px;
  margin-top: 4px;
}

button {
  margin-top: 16px;
  padding: 12px;
  width: 100%;
  background: #2563eb;
  color: #fff;
  border: none;
  font-size: 1rem;
  cursor: pointer;
}

.results {
  margin-top: 24px;
  padding: 16px;
  background: #f0f9ff;
}

.total {
  font-size: 1.2rem;
  margin-top: 12px;
}

.disclaimer {
  font-size: 0.85rem;
  color: #555;
}