:root{--bg-main:linear-gradient(135deg, #667eea 0%, #764ba2 100%);--border-color:#e0e4e8;--border-focus:#667eea;--text-color:#2d3748;--text-secondary:#718096;--error-color:#e53e3e;--success-color:#38a169;--warning-color:#dd6b20;--shadow-sm:0 1px 3px #0000000d;--shadow-md:0 4px 6px #00000012;--shadow-lg:0 10px 25px #0000001a;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--transition:all .2s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-color);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:13px;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit;font-size:13px}