body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #f4f7ff, #dce8ff);
  font-family: Arial, Helvetica, sans-serif;
  color: #1f2937;
}

.card {
  width: min(92vw, 480px);
  padding: 2rem;
  border-radius: 16px;
  background: white;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

h1 {
  margin-top: 0;
  margin-bottom: 1.2rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

input, select, button {
  font: inherit;
  padding: 0.8rem 1rem;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
}

button {
  width: 100%;
  background: #2563eb;
  color: white;
  border: none;
  cursor: pointer;
  margin-top: 0.4rem;
}

button:hover {
  background: #1d4ed8;
}

.summary {
  margin-top: 1.2rem;
  padding: 1rem;
  border-radius: 10px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.summary h2 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}