*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:system-ui,sans-serif;background:#0f1419;color:#e7e9ea}#app{max-width:42rem;margin:0 auto;padding:2rem 1.25rem}header h1{margin:0;font-size:1.75rem}.sub{margin:.25rem 0 1.5rem;color:#8b98a5;font-size:.9rem}.card{background:#1a2332;border-radius:12px;padding:1.25rem 1.5rem;border:1px solid #2f3b4d}.card h2{margin:0 0 .75rem;font-size:1rem;color:#8b98a5;font-weight:600}.mono{font-family:ui-monospace,monospace;font-size:.85rem;word-break:break-all;margin:0}.mono.ok{color:#6ee7b7}.mono.err{color:#fca5a5}