:root{--color-primary: #1976d2;--color-primary-hover: #1565c0;--color-primary-light: #e3f2fd;--color-success: #4caf50;--color-success-light: #e8f5e9;--color-error: #ef4444;--color-error-light: #fee2e2;--color-text: #222;--color-text-secondary: #555;--color-text-muted: #888;--color-bg: #f5f7fa;--color-card: #fff;--color-border: #ddd;--color-console-bg: #1e1e1e;--color-console-text: #d4d4d4;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--shadow-card: 0 2px 12px rgba(0, 0, 0, .06);--font-mono: "Courier New", monospace;--font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;font-family:var(--font-system);font-size:14px;line-height:1.5;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit;font-size:inherit}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}