.amortization-card {
  max-width: 600px;
  margin: 1em auto;
  padding: 1em;
  border: 1px solid #ccc;
  border-radius: 8px;
  background: #f9f9f9;
}

.amortization-card h2, .amortization-card h3 {
  text-align: center;
}

.amortization-card form {
  display: flex;
  flex-direction: column;
  gap: 0.5em;
}

.amortization-card input, .amortization-card button {
  padding: 0.5em;
  font-size: 1em;
}

.amortization-card button {
  cursor: pointer;
  border: none;
  border-radius: 4px;
  background: #0073aa;
  color: white;
}

.amortization-card button:hover {
  background: #005177;
}

.amortization-card table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1em;
  font-size: 0.9em;
}

.amortization-card table th, .amortization-card table td {
  border: 1px solid #ccc;
  padding: 4px;
  text-align: right;
}

.amortization-card table th {
  background: #eee;
}

.hidden {
  display: none;
}