:root{--bg-main:#0f1117;--bg-card:#181b24;--bg-card-hover:#212532;--bg-input:#10121a;--text-main:#f0f2f5;--text-muted:#9aa2b1;--border-color:#2b3142;--border-focus:#537fe7;--color-primary:#3b82f6;--color-primary-hover:#2563eb;--color-success:#10b981;--color-success-hover:#059669;--color-danger:#ef4444;--color-danger-hover:#dc2626;--color-warning:#f59e0b;--color-warning-hover:#d97706;--color-purple:#8b5cf6;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-main);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;min-height:100vh;line-height:1.5}.operator-app{flex-direction:column;max-width:800px;min-height:100vh;margin:0 auto;display:flex}.operator-navbar{background-color:var(--bg-card);border-bottom:1px solid 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