:root{color:#0f172a;background-color:#f8fafc;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.4}*{box-sizing:border-box}body{margin:0}#app{min-height:100vh}.dashboard{max-width:960px;margin:0 auto;padding:2rem 1rem}.cards{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-top:1rem;display:grid}.card{background:#fff;border:1px solid #e2e8f0;border-radius:.5rem;padding:1rem}.card h2{color:#334155;margin:0;font-size:1rem}.value{margin:.5rem 0 0;font-size:1.8rem;font-weight:600}.error{color:#dc2626}.updated-at{color:#475569;margin-top:1.5rem}