body, header, footer, .hero, .how-it-works {
  background-color: black;
  color: white;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 20px;
}

a.big-button, .big-button {
  background-color: #007bff;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 6px;
  font-size: 1.1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  margin-top: 1rem;
}

.big-button:hover {
  opacity: 0.9;
}

.heirs-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 400px;
  margin: 0 auto;
  padding: 20px;
  background-color: black;
  border-radius: 8px;
}

.heirs-form label {
  color: white;
}

.heirs-form input, .heirs-form textarea, .heirs-form select {
  padding: 10px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}