:root{font-family:system-ui,sans-serif;color-scheme:light}body{margin:0;padding:0}.login-card{max-width:24rem;margin:4rem auto;padding:2rem;border:1px solid #ddd;border-radius:.5rem}.app-shell__header{display:flex;justify-content:space-between;align-items:center;padding:1rem;border-bottom:1px solid #ddd}.app-shell__nav{display:flex;gap:.5rem;flex-wrap:wrap;padding:.5rem 1rem;border-bottom:1px solid #eee}.app-shell__nav button[aria-current=page]{font-weight:700}.app-shell__content{padding:2rem 1rem}