.imc-container {
    background: #e0f7ec;
    padding: 25px;
    border-radius: 15px;
    max-width: 420px;
    margin: 30px auto;
    font-family: "Segoe UI", sans-serif;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.imc-container h3 {
    text-align: center;
    color: #2f855a;
    margin-bottom: 25px;
}

.imc-container label {
    display: block;
    margin-bottom: 8px;
    color: #22543d;
    font-weight: 500;
}

.imc-container input {
    width: 100%;
    padding: 12px;
    margin-bottom: 18px;
    border: 1px solid #9ae6b4;
    border-radius: 8px;
    font-size: 16px;
}

.imc-container button {
    width: 100%;
    background-color: #38a169;
    color: white;
    padding: 14px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.imc-container button:hover {
    background-color: #2f855a;
}

#resultat-imc {
    margin-top: 25px;
    text-align: center;
    color: #22543d;
    font-weight: bold;
    font-size: 18px;
}