body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f9f9f9;
    color: #333;
}

.container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background-color: #ffffff;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

h1 {
    text-align: center;
    color: #4CAF50;
    margin-bottom: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 300px;
    margin-bottom: 20px;
}

label {
    margin-bottom: 5px;
    font-weight: bold;
}

input {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    width: 100%;
}

table {
    border-collapse: collapse;
    margin-top: 20px;
    overflow-x: auto;
    display: block;
}

th, td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: center;
}

th {
    background-color: #4CAF50;
    color: white;
}

td {
    background-color: #fefefe;
}

td input {
    width: 80%;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    display: block;
    width: 100%;
    max-width: 300px;
    padding: 10px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 20px;
}

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

@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

    .container {
        padding: 10px;
    }

    table th, table td {
        font-size: 12px;
        padding: 6px;
    }

    input {
        font-size: 14px;
        padding: 6px;
    }

    button {
        font-size: 14px;
        padding: 8px;
    }
}