:root{--bg: #f4f5f7;--surface: #ffffff;--border: #e3e5e9;--text: #14161a;--muted: #6b7280;--accent: #ffdd2d;--accent-text: #14161a;--ok: #1f9d55;--fail: #d64545;--radius: 14px;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}h1{font-size:24px;margin:0 0 8px}h2{font-size:16px;margin:0 0 12px}code{background:var(--bg);border-radius:4px;padding:1px 4px;font-size:13px}.muted,.hint{color:var(--muted);font-size:14px}.nowrap{white-space:nowrap}.page{min-height:100vh;display:grid;place-items:center;padding:24px 16px}.card{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:16px}.card--wide{max-width:560px}.badge{align-self:flex-start;background:var(--bg);border-radius:999px;padding:4px 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