body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f4f4f4;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    color: #333;
}

form {
    margin-bottom: 20px;
}

label {
    display: inline-block;
    width: 150px;
    margin-bottom: 10px;
}

input, select {
    padding: 5px;
    margin-bottom: 10px;
    width: 100px;
}

button {
    padding: 10px 20px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

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

.problems {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

.problem {
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: 4px;
    background-color: #fafafa;
    text-align: center;
    font-size: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.prblm{
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.answerline {
    margin-top: -20px;
 
}

@media print {
    body {
        margin: 0;
        background-color: white;
    }
    .container {
        box-shadow: none;
        border: none;
        padding: 0;
        max-width: none;
    }
    form, #print-btn {
        display: none !important;
    }
    .problems {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        page-break-inside: avoid;
    }
    .problem {
        border: none;
        padding: 15px;
        font-size: 24px;
        page-break-inside: avoid;
    }
}