.aprcalculator {
    max-width: 750px;
    margin:40px auto;
    background: #ffffff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.aprcalculator h2{
    text-align: center;
    margin-bottom: 20px;
}

.aprcalculator .input-row {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.aprcalculator .input-row input {
    flex: 1;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-size: 16px;
}

.aprcalculator button {
    width: 100%;
    padding: 12px;
    background: #1565c0;
    color: white;
    font-size: 18px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

.aprcalculator button:hover {
    background: #0d47a1;
}

.aprcalculator .result {
    margin-top: 25px;
    padding: 20px;
    background: #eef4ff;
    border-radius: 8px;
    display: none;
}

.aprcalculator .result h3 {
    margin-top: 0;
}

.aprcalculator .result p {
    margin: 8px 0;
    font-size: 16px;
}

.aprcalculator strong {
    font-weight: bold;
}

/* Mobile Responsive */
@media (max-width:600px) {
    .aprcalculator .input-row {
        flex-direction: column;
    }
}