:root{--bg:#0b0d18;--surface:#151829;--surface-2:#1d2138;--border:#2a2f4a;--text:#eef0fb;--muted:#8b91b5;--accent:#8b5cf6;--accent-2:#22d3ee;--ok:#22c55e;--warn:#f59e0b;--bad:#ef4444;--radius:14px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.page{max-width:760px;margin:0 auto;padding:20px 16px 40px}.page.narrow{max-width:520px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:14px}.mono{font-family:ui-monospace,Cascadia Code,Consolas,monospace}.hint{color:var(--muted);font-size:13px;margin:6px 0 0}.center{text-align:center;display:block}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.spacer{flex:1 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