:root,[data-theme=dark]{--bg-0: #0b1020;--bg-1: #0f172a;--bg-2: #111827;--bg-3: #1e293b;--bg-elev: #18223a;--text: #f1f5f9;--text-dim: #cbd5e1;--text-mute: #cbd5e1;--border: #1f2937;--border-2: #2a3548;--accent: #8b5cf6;--accent-2: #06b6d4;--accent-soft: rgba(139, 92, 246, .18);--cyan-soft: rgba(6, 182, 212, .18);--success: #10b981;--warning: #f59e0b;--error: #ef4444;--radius-sm: 6px;--radius: 10px;--radius-lg: 14px;--shadow-1: 0 2px 6px rgba(0,0,0,.25);--shadow-2: 0 8px 30px rgba(0,0,0,.45);--shadow-3: 0 16px 50px rgba(0,0,0,.55);--font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";--mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;--sidebar-w: 280px;--editor-w: 640px;--chat-h: 220px;--topbar-h: 48px;--tabbar-h: 36px;--transition: .16s ease;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 80px;--fs-xs: 11px;--fs-sm: 12px;--fs-base: 14px;--fs-md: 15px;--fs-lg: 17px;--fs-xl: 20px;--fs-2xl: 28px;--z-base: 0;--z-sticky: 10;--z-overlay: 50;--z-modal: 100;--z-toast: 200}[data-theme=light]{--bg-0: #f8fafc;--bg-1: #ffffff;--bg-2: #f1f5f9;--bg-3: #e2e8f0;--bg-elev: #ffffff;--text: #0f172a;--text-dim: #475569;--text-mute: #475569;--border: #e2e8f0;--border-2: #cbd5e1;--accent-soft: rgba(139, 92, 246, .12);--cyan-soft: rgba(6, 182, 212, .12);--shadow-1: 0 2px 6px rgba(15, 23, 42, .08);--shadow-2: 0 8px 30px rgba(15, 23, 42, .12);--shadow-3: 0 16px 50px rgba(15, 23, 42, .18)}@media (prefers-color-scheme: light){:root:not([data-theme]){color-scheme:light;--bg-0: #f8fafc;--bg-1: #ffffff;--bg-2: #f1f5f9;--bg-3: #e2e8f0;--bg-elev: #ffffff;--text: #0f172a;--text-dim: #475569;--text-mute: #475569;--border: #e2e8f0;--border-2: #cbd5e1;--accent-soft: rgba(139, 92, 246, .12);--cyan-soft: rgba(6, 182, 212, .12);--shadow-1: 0 2px 6px rgba(15, 23, 42, .08);--shadow-2: 0 8px 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