body{background:var(--tblr-bg-surface)}.bottom-nav{position:fixed;left:0;right:0;bottom:0;border-top:1px solid var(--tblr-border-color);background:var(--tblr-bg-surface);padding:.4rem .6rem}.page-pad{padding-bottom:4.2rem}.nav-btn{width:20%;text-align:center;font-size:.75rem;color:var(--tblr-muted);text-decoration:none}.nav-btn.active{color:var(--tblr-primary);font-weight:600}