#bareme-macron-simulateur {
border: 1px solid #ddd;
padding: 15px;
margin: 15px 0;
border-radius: 8px;
background: #fafafa;
max-width: 500px;
}
#bareme-macron-simulateur label {
display: block;
margin-top: 10px;
font-weight: bold;
}
#bareme-macron-simulateur input, 
#bareme-macron-simulateur select, 
#bareme-macron-simulateur button {
width: 100%;
padding: 10px;
margin-top: 5px;
box-sizing: border-box;
font-size: 16px;
}
#bareme-macron-simulateur button {
background: #0073aa;
color: white;
border: none;
margin-top: 15px;
cursor: pointer;
border-radius: 4px;
}
#bareme-macron-simulateur button:hover {
background: #005f8d;
}
@media (max-width: 600px) {
#bareme-macron-simulateur {
padding: 10px;
font-size: 14px;
}
#bareme-macron-simulateur input, 
#bareme-macron-simulateur select, 
#bareme-macron-simulateur button {
font-size: 14px;
padding: 8px;
}
}