:root{--bg:#020817;--bg-gradient-1:#38bdf81f;--bg-gradient-2:#818cf81a;--surface:#0f172ad6;--surface-strong:#0f172af2;--surface-soft:#1e293b99;--border:#26374f;--border-strong:#3b5778;--text:#e2e8f0;--muted:#94a3b8;--primary:#38bdf8;--primary-strong:#0284c7;--success-bg:#10b98124;--success-border:#10b98166;--success-text:#34d399;--danger-bg:#f8717124;--danger-border:#f8717166;--danger-text:#f87171;--reader-user-bg:#0f4a3c;--reader-user-border:#1f7b63;--reader-agent-bg:#16233a;--reader-agent-border:#355277;--reader-system-bg:#352a15;--reader-system-border:#6f5526;--shadow-soft:0 12px 35px #02081747;--shadow-hard:0 16px 42px 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