html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: #081320;
    overflow: hidden;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
    font-family: Arial, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

#app {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at center, #102A43 0%, #081320 100%);
}

#game-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

canvas {
    max-width: 100vw;
    max-height: 100vh;
    object-fit: contain;
    box-shadow: 0 0 35px rgba(36, 199, 217, 0.15);
}