*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f8fafc;--bg-card: #ffffff;--bg-input: #ffffff;--bg-hover: #f1f5f9;--bg-active: #e0e7ff;--border: #e2e8f0;--border-focus: #6366f1;--text: #0f172a;--text-muted: #64748b;--text-faint: #94a3b8;--accent: #6366f1;--accent-hover: #4f46e5;--accent-light: #e0e7ff;--accent-text: #ffffff;--danger: #ef4444;--danger-light: #fef2f2;--success: #22c55e;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.1);--radius: 8px;--radius-lg: 12px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--mono: "SF Mono", "Fira Code", "Cascadia Code", monospace;--header-h: 56px;--sidebar-w: 220px;--transition: .15s ease}[data-theme=dark]{--bg: #0f1117;--bg-card: #1a1d27;--bg-input: #12151e;--bg-hover: #1e2130;--bg-active: #2d2f52;--border: #2a2d3e;--border-focus: #818cf8;--text: #e2e8f0;--text-muted: #94a3b8;--text-faint: #64748b;--accent: #818cf8;--accent-hover: #a5b4fc;--accent-light: #1e2052;--accent-text: #0f0f1a;--danger: #f87171;--danger-light: #2a1515;--success: #4ade80;--shadow-sm: 0 1px 3px rgba(0,0,0,.4);--shadow-md: 0 4px 16px rgba(0,0,0,.5)}html,body{height:100%;font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}#app{height:100%;display:flex;flex-direction:column}button{font-family:var(--font);cursor:pointer;border:none}button:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}input,textarea,select{font-family:var(--font);font-size:14px}input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--border-focus);outline-offset:1px}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-faint)}