* {
    box-sizing: border-box;
}

body {
    margin: 0;

    font-family: Arial, sans-serif;

    background: #f2f2f2;
}

.container {
    max-width: 1200px;

    margin: 40px auto;

    padding: 20px;

    display: grid;

    grid-template-columns: 350px 1fr;

    gap: 40px;
}

.form-section {
    background: #fff;

    padding: 25px;

    border-radius: 15px;

    box-shadow: 0 10px 30px rgba(0,0,0,.12);
}

.form-section h2 {
    margin-top: 0;

    color: #222;
}

.form-section label {
    display: block;

    margin-top: 15px;
    margin-bottom: 5px;

    font-weight: 600;
}

.form-section input,
.form-section textarea,
.form-section select {
    width: 100%;

    padding: 11px;

    border: 1px solid #ddd;

    border-radius: 7px;

    font-size: 14px;
}

.form-section textarea {
    height: 80px;

    resize: vertical;
}

button {
    width: 100%;

    padding: 12px;

    margin-top: 15px;

    border: 0;

    border-radius: 8px;

    cursor: pointer;

    font-weight: bold;

    background: #138808;

    color: #fff;
}

.preview-section {
    display: flex;

    align-items: center;

    justify-content: center;
}

canvas {
    width: 100%;

    max-width: 900px;

    height: auto;

    border-radius: 15px;

    box-shadow:
        0 15px 40px rgba(0,0,0,.2);
}

@media(max-width: 800px) {

    .container {
        grid-template-columns: 1fr;
    }

}

@media print {

    body {
        background: #fff;
    }

    .form-section {
        display: none;
    }

    .container {
        display: block;

        margin: 0;
    }

    canvas {
        width: 100%;
        box-shadow: none;
    }

}