:root{--color-bg:#020617;--color-surface:#0f172a;--color-surface-raised:#111827;--color-surface-hover:#1e293b;--color-border:#243042;--color-border-subtle:#1e293b;--color-text:#f8fafc;--color-text-secondary:#cbd5e1;--color-text-tertiary:#7c8aa3;--color-accent:#22c55e;--color-accent-dim:#22c55e21;--color-accent-border:#22c55e7a;--color-warm:#f59e0b;--color-warm-dim:#f59e0b1f;--color-info:#60a5fa;--color-info-dim:#60a5fa1f;--color-user-bubble:#123a2a;--color-user-text:#dcfce7;--color-danger:#f87171;--color-danger-dim:#f871711f;--color-on-accent:#0f1117;--color-grid-line:#94a3b806;--color-panel-translucent:#0f172ac2;--color-topbar-bg:#0f172aeb;--color-ai-bubble:#0f172ad1;--color-config-section:#111827c7;--font-sans:"Plus Jakarta Sans", "Noto Sans SC", sans-serif;--font-mono:"SF Mono", "Fira Code", ui-monospace, 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;--lightningcss-dark:initial;color-scheme:dark;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-synthesis:none;text-rendering:optimizelegibility;font-size:16px;line-height:1.6}:root[data-theme=light]{--color-bg:#f5f7fb;--color-surface:#fff;--color-surface-raised:#f8fafc;--color-surface-hover:#eef4f8;--color-border:#d7e0ea;--color-border-subtle:#e2e8f0;--color-text:#111827;--color-text-secondary:#475569;--color-text-tertiary:#64748b;--color-accent:#16a34a;--color-accent-dim:#16a34a1a;--color-accent-border:#16a34a5c;--color-warm:#d97706;--color-warm-dim:#d977061f;--color-info:#2563eb;--color-info-dim:#2563eb1a;--color-user-bubble:#dcfce7;--color-user-text:#14532d;--color-danger:#dc2626;--color-danger-dim:#dc26261a;--color-on-accent:#fff;--color-grid-line:#0f172a09;--color-panel-translucent:#ffffffc7;--color-topbar-bg:#ffffffeb;--color-ai-bubble:#f8fafceb;--color-config-section:#fff;--shadow-sm:0 1px 2px #0f172a14;--shadow-md:0 18px 50px #0f172a1f;--shadow-lg:0 24px 70px #0f172a24}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(var(--color-grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--color-grid-line) 1px, transparent 1px), var(--color-bg);background-size:48px 48px;min-height:100vh;margin:0}#root{flex-direction:column;min-height:100vh;display:flex}.theme-toggle{width:32px;height:32px;color:var(--color-text);background:var(--color-topbar-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:none;cursor:pointer;transition:color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.theme-toggle:hover{color:var(--color-accent);border-color:var(--color-accent-border);transform:translateY(-1px)}.theme-toggle:focus-visible{outline:2px solid 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