body,
html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #f3f4f6;
    /* gray-100 */
}

#canvas-container {
    position: relative;
    width: 100%;
    height: 100%;
}

canvas {
    display: block;
    cursor: crosshair;
}

.controls {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.9);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    display: flex;
    gap: 1.5rem;
    align-items: center;
    backdrop-filter: blur(4px);
    z-index: 10;
}