body { 
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    min-height: 100vh;
    background-color: #f9f9f9;
}

.responsive-table {
    width: 100%;
    max-width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
    font-size: 16px;
    transition: font-size 0.3s ease;
}

.responsive-table th, .responsive-table td {
    border: 1px solid #ddd; 
    text-align: center;
}

.responsive-table th {
    background-color: #f2f2f2;
}

.center {
    text-align: center;
}

.calculator-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 90%;
    max-width: 400px;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    margin: 20px auto;
    background-color: #ffffff;
}

.calculator-container input, .calculator-container button {
    width: calc(100% - 20px);
    padding: 10px;
    margin: 10px 0;
    font-size: 16px;
}

.calculator-container button {
    cursor: pointer;  
    border: none;
    border-radius: 5px;
}

.result {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
}

@media (max-width: 700px) {
    .responsive-table th, .responsive-table td {
        font-size: 12px;
        padding: 6px;
    }
}