body {
  font-family: 'Montserrat', sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  max-width: 600px;
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  text-align: center;
}

h1 {
  color: #333;
}

.input-container {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}

input[type="number"] {
  width: 80px;
  height: 30px;
  font-size: 18px;
  text-align: center;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.button-container {
  text-align: center;
  margin-bottom: 20px;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  border: none;
  border-radius: 4px;
  background-color: #4CAF50;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #45a049;
}

.result-container {
  font-size: 18px;
  color: #333;
}

.error-message {
  color: #d9534f;
  font-size: 16px;
  margin-top: 10px;
  text-align: center;
}

#speedResult {
  margin-top: 20px; /* Ajuste la valeur en fonction de l'espace souhaité */
}


.copyright {
  background-color:#fff;
  color:#4b4c4d;
  margin-top:14px;
  margin-bottom:0;
  font-size:13px;
  opacity:0.6;
}