:root{--dark-bg:#1e1e1e;--dark-card:#2d2d2d;--dark-border:#3d3d3d;--text-primary:#e0e0e0;--text-secondary:#a0a0a0;--accent:#4a9eff;--accent-hover:#357abd;--success:#4caf50;--warning:#ff9800;--error:#f44336;--spacing-xs:0.5rem;--spacing-sm:1rem;--spacing-md:1.5rem;--spacing-lg:2rem;--spacing-xl:3rem;--border-radius:8px;--transition:all 0.3s ease}*{box-sizing:border-box;margin:0;padding:0}body{background-color:#1e1e1e;background-color:var(--dark-bg);color:#e0e0e0;color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}#root,body,html{height:100%;width:100%}.app{background-color:#1e1e1e;background-color:var(--dark-bg);display:flex;flex-direction:column;height:100vh}.navbar{background-color:#2d2d2d;background-color:var(--dark-card);border-bottom:1px solid #3d3d3d;border-bottom:1px solid 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