body {
    height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, #1c1c2e, #2a2a4f);
}

.main-container {
    flex: 1;
}

canvas {
    width: 100%;
    height: 100%;
    max-height: 520px;
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0,0,0,0.4);
}

.reference-img {
    max-height: 500px;
    object-fit: contain;
    box-shadow: 0 0 20px rgba(0,0,0,0.4);
}