html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #0f0f0f;
}

#app {
    width: 100%;
    height: 100%;
}

#game-container {
    width: 100%;
    height: 100%;
}

#game-container canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

#touch-controls {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 16px;
}

#touch-controls button {
    width: 56px;
    height: 56px;
    border: none;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.45);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
    transition: opacity 0.1s ease;
}

#touch-controls button:active {
    opacity: 0.6;
}