@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap');

:root {
    --z-back: -10;
    --z-normal: 1;
    --z-tooltip: 10;
    --z-fixed: 100;
    --z-modal: 1000;
}

*,
::before,
::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    text-decoration: none;
    list-style: none;
}