body {
    font-family: Arial, sans-serif;
    background-image: linear-gradient(to bottom right, #FDFCFB 0%, #04399e 100%);
    background-size: cover;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.wrapper {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
}

.container {
    background-color: #04399e;
    padding: 20px;
    border: 1px solid white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
    width: 100%;
    max-width: 1000px;
}

h1 {
    margin-bottom: 16px;
    color: white;
}

.controls {
    margin-bottom: 10px;
}

.controls label {
    margin-right: 10px;
}

.controls select {
    width: 100px;
    margin-right: 10px;
    margin-bottom: 10px;
}

.matrix-container {
    background-color: #f9f9f9;
    padding: 10px;
    border: 1px solid #cccccc;
    display: grid;
    grid-auto-flow: row;
    gap: 8px;
    justify-items: center;
    align-items: center;
}

.matrix-cell {
    width: 60px;
    height: 40px;
    text-align: center;
    -moz-appearance: textfield;
    -webkit-appearance: none;
    margin: 0;
}

.matrix-cell::-webkit-outer-spin-button,
.matrix-cell::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

button {
    background-color: #23e6a2;
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
    margin: 20px;
}

button:hover {
    background-color: #25cb91;
}

.output-container {
    background: #2a4881;
    color: white;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #dddddd;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 800px;
    margin: 10px auto;
}

.output-container h2 {
    margin-bottom: 10px;
}

.output-container pre {
    font-size: 16px;
    white-space: pre-wrap;
    text-align: left;
}

.output-container pre::before {
    content: "Output will be displayed here";
    display: block;
    color: #dddddd;
    font-style: italic;
}

.output-container pre.has-content::before {
    content: "";
}

@media only screen and (max-width: 600px) {
    .controls select {
        width: 60px;
    }

    .matrix-cell {
        width: 12px;
        height: 20px;
    }

    button {
        padding: 10px 20px;
        font-size: 10px;
    }
}