:root{--header-height:3.5rem;--sidebar-width:16rem;--sidebar-width-collapsed:3.5rem;--content-max-width:80rem;--container-padding:1.5rem;--z-base:0;--z-dropdown:30;--z-sticky:40;--z-overlay:50;--z-modal:60;--z-toast:70;--z-tooltip:80}@media (max-width:640px){:root{--container-padding:1rem}}