:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#f8fafc;color:#0f172a}.app{max-width:480px;margin:0 auto;padding:2rem 1.25rem calc(2rem + env(safe-area-inset-bottom));min-height:100vh}h1{font-size:2rem;margin:0 0 .25rem}.tagline{color:#475569;margin:0 0 1.5rem}.card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:1rem 1.25rem}.card h2{font-size:1rem;margin:0 0 .5rem}.card ul{list-style:none;margin:0;padding:0}.card li{padding:.35rem 0}.ok{color:#16a34a}.bad{color:#dc2626}.muted{color:#94a3b8}footer{margin-top:1.5rem;font-size:.85rem;text-align:center}