:root{--primary-color: #3182ce;--primary-hover: #2c5282;--secondary-color: #e2e8f0;--secondary-hover: #cbd5e0;--success-color: #48bb78;--error-color: #f56565;--text-color: #2d3748;--text-light: #4a5568;--background-light: #f7fafc;--border-color: #e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;background-color:var(--background-light);color:var(--text-color);line-height:1.5}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}