:root{--bg: #ffffff;--ink: #0f172a;--body: #475569;--muted: #64748b;--line: #cbd5e1;--surface: #e2e8f0;--good: #15803d;--bad: #b91c1c}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--body);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}#root{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100dvh;padding:1rem 1rem 2rem}.card{width:100%;max-width:24rem;background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:3rem 2rem;display:grid;gap:1.5rem;text-align:left}.brand{font-size:.8125rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}h1{margin:0;font-size:1.125rem;font-weight:600;line-height:1.4;color:var(--ink)}p{margin:0}p+p{margin-top:.75rem}.muted{color:var(--muted);font-size:.875rem}strong{color:var(--ink);font-weight:600}.mark{width:2rem;height:2rem;border-radius:4px;display:grid;place-items:center;font-size:1rem;font-weight:700;color:#fff}.mark--good{background:var(--good)}.mark--bad{background:var(--bad)}.spinner{width:2rem;height:2rem;border:2px solid var(--surface);border-top-color:var(--muted);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.spinner{animation-duration:3s}}@media(max-width:26rem){.card{border:none;border-bottom:1px solid var(--line);padding:2.5rem 1.25rem}}.confirm-target{border:1px solid var(--line);border-radius:4px;padding:1rem;display:grid;gap:.375rem}.handle{color:var(--ink);font-size:1.0625rem;font-weight:600;font-variant-numeric:tabular-nums}.warn{color:var(--bad);font-size:.8125rem;line-height:1.5}.code{color:var(--ink);font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace;font-size:1.75rem;font-weight:600;letter-spacing:.15em;margin:.5rem 0;-webkit-user-select:all;user-select:all}