body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 600px;
  margin: 40px auto;
  background: #ffffff;
  padding: 30px;
  border-radius: 6px;
}

h1 {
  text-align: center;
}

.calculator input,
.calculator select {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  font-size: 16px;
}

.calculator button {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  background: #2c7be5;
  color: #ffffff;
  border: none;
  cursor: pointer;
}

.calculator button:hover {
  background: #1a68d1;
}

#resultat {
  margin-top: 20px;
  padding: 15px;
  background: #eef3ff;
  border-radius: 4px;
}

.faq h3 {
  margin-top: 20px;
}

.faq p {
  margin-bottom: 10px;
  line-height: 1.5;
}