:root{color-scheme:light dark;font-family:system-ui,sans-serif}body{margin:0;padding:2rem}.app{max-width:760px;margin:0 auto}header{display:flex;align-items:center;gap:1rem;justify-content:space-between}nav button{margin-left:.5rem}nav button.active{font-weight:700}.row{display:flex;gap:.5rem;margin:.75rem 0}.list{list-style:none;padding:0}.list li{border:1px solid #8884;border-radius:8px;padding:.75rem;margin-bottom:.5rem}.badge{display:inline-block;padding:.1rem .5rem;border-radius:999px;background:#8882;font-size:.8rem}.error{color:#d33}