body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

#game-canvas {
    width: 100%;
    height: 100%;
    background-color: #1f2937;
}

.puzzle-piece {
    position: absolute;
    background-color: #4b5563;
    border-radius: 4px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease;
}

.screw {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.1s ease;
}

.screw:hover {
    transform: scale(1.2);
}

.screw::after {
    content: '';
    width: 4px;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
}

.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}