:root{--rack-exterior:#090b0e;--rack-slate:#12151b;--rail-aluminum:#242a35;--bay-bg:#161a23;--bay-header:#1c222e;--bay-border:#283142;--bay-border-light:#364157;--bay-highlight:rgba(255, 255, 255, 0.07);--screen-bg:#07090c;--screen-border:#181d26;--screen-grid:rgba(0, 229, 255, 0.04);--led-cyan:#00e5ff;--led-cyan-dim:rgba(0, 229, 255, 0.12);--led-emerald:#10b981;--led-emerald-dim:rgba(16, 185, 129, 0.12);--led-amber:#ffb000;--led-amber-dim:rgba(255, 176, 0, 0.12);--led-ruby:#ff3344;--led-ruby-dim:rgba(255, 51, 68, 0.15);--nixie-glow:#ff6a00;--nixie-bg:#110800;--text-main:#e2e8f0;--text-dim:#94a3b8;--text-dark:#64748b;--text-label:#818cf8;--font-sans:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono","SF Mono",Menlo,Consolas,"Liberation 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