body {
    margin: 0;
    padding: 10px;
    font-family: sans-serif;
    background-color: #222;
    color: #eee;
    text-align: center;
}

h1 {
    font-size: 1.5rem;
    margin: 10px 0;
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 10px;
    max-width: 620px;
    margin: 0 auto;
}

.renderer-box {
    background-color: #333;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

canvas {
    background-color: #000;
    border: 1px solid #555;
    width: 260px;
    height: 195px;
    /* Ensure internal resolution matches CSS size for sharpness */
    image-rendering: pixelated; 
}

h2 {
    margin-top: 0;
    font-size: 1rem;
    min-height: 2.5em; /* Ensure titles align */
}

.caption {
    font-size: 0.8rem;
    color: #aaa;
}