html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    height: 100dvh;
    overflow: hidden;
    background: #F0E0D0;
    overscroll-behavior: none;
    /* iOS: respeta notch y barra de inicio cuando viewport-fit=cover */
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    box-sizing: border-box;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    outline: none;
    /* Ayuda a que el tap llegue a Compose (foco / teclado móvil). */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
}