*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0d1117;--bg-card:#161b27;--bg-input:#0f141f;--border:#2a3244;--text:#e8ecf4;--text-muted:#8b94a7;--accent:#4f7cff;--accent-hover:#6b90ff;--danger:#e5534b;--success:#3fb950;--radius:16px}html,body{height:100%}body{background:radial-gradient(1200px 600px at 50% -100px, #1a2340 0%, var(--bg) 60%);color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,sans-serif;line-height:1.5}#root{min-height:100vh}.screen{flex-direction:column;min-height:100vh;display:flex}.screen.center{justify-content:center;align-items:center;padding:24px 16px}h1{margin-bottom:8px;font-size:28px}h2{margin-bottom:8px;font-size:22px}h3{margin-bottom:8px;font-size:16px}.muted{color:var(--text-muted)}.small-text{font-size:13px}.onboard-card{background:var(--bg-card);border:1px solid 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