:root{--color-primary: #4f46e5;--color-primary-hover: #4338ca;--color-primary-light: #eef2ff;--color-bg: #f5f6f8;--color-surface: #ffffff;--color-border: #e5e7eb;--color-text: #111827;--color-text-muted: #6b7280;--color-success: #22c55e;--color-danger: #ef4444;--color-danger-hover: #dc2626;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 18px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 8px 24px rgba(15, 23, 42, .1);--shadow-lg: 0 16px 40px rgba(15, 23, 42, .16);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,input,textarea{font-family:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:4px}::-webkit-scrollbar-track{background:transparent}