:root{--bg-base:#07080f;--bg-surface:#0d1117;--bg-elevated:#161c26;--bg-overlay:#1d2535;--border-xs:rgba(148,163,184,0.05);--border-sm:rgba(148,163,184,0.09);--border-md:rgba(148,163,184,0.16);--border-lg:rgba(148,163,184,0.28);--border-brand:rgba(59,130,246,0.45);--text-hi:#edf2fb;--text-mid:#8fa3c0;--text-lo:#4f6480;--text-xlo:#2b3a4e;--text-brand:#60a5fa;--text-success:#34d399;--text-danger:#f87171;--text-warning:#fbbf24;--brand:#3b82f6;--brand-hover:#2563eb;--brand-active:#1d4ed8;--brand-subtle:rgba(59,130,246,0.10);--brand-medium:rgba(59,130,246,0.20);--success:#22c55e;--success-subtle:rgba(34,197,94,0.10);--success-border:rgba(34,197,94,0.22);--danger:#ef4444;--danger-subtle:rgba(239,68,68,0.10);--danger-border:rgba(239,68,68,0.22);--warning:#f59e0b;--warning-subtle:rgba(245,158,11,0.10);--warning-border:rgba(245,158,11,0.22);--sidebar-w:256px;--r-sm:4px;--r-md:8px;--r-lg:12px;--r-xl:16px;--r-2xl:20px;--r-full:9999px;--sh-sm:0 1px 4px rgba(0,0,0,0.40);--sh-md:0 4px 20px 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