:root{--bg-app: #0f172a;--bg-surface: #1e293b;--bg-input: #0f172a;--bg-canvas: #0a0f1e;--border: #334155;--border-hover: #475569;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--text-on-surface: #e2e8f0;--accent: #00b4ff;--accent-hover: #0088cc;--accent-dim: #003d5c;--accent-light: #7dd3fc;--error-bg: #7f1d1d;--error-border: #ef4444;--error-text: #fca5a5;--scrollbar-track: #1e293b;--scrollbar-thumb: #475569;--shadow: rgba(0,0,0,.4);--overlay: rgba(0,0,0,.6)}[data-theme=light]{--bg-app: #f1f5f9;--bg-surface: #ffffff;--bg-input: #f8fafc;--bg-canvas: #e2e8f0;--border: #e2e8f0;--border-hover: #cbd5e1;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--text-on-surface: #334155;--error-bg: #fef2f2;--error-border: #f87171;--error-text: #dc2626;--scrollbar-track: #f1f5f9;--scrollbar-thumb: #cbd5e1;--shadow: rgba(0,0,0,.1);--overlay: rgba(0,0,0,.3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;background:var(--bg-app);color:var(--text-primary);font-family:Inter,system-ui,-apple-system,sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--accent)}