* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    /* Disable selection and touch highlights */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #70c5ce; /* Sky blue matching Flappy Bird */
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    touch-action: none; /* Critical for preventing scroll on touch */
}