:root{--primary-color: #3b82f6;--secondary-color: #f3f4f6;--success-color: #10b981;--danger-color: #ef4444;--warning-color: #f59e0b;--background-color: #ffffff;--background-primary: #f9fafb;--background-secondary: #f3f4f6;--text-color: #1f2937;--text-light: #6b7280;--text-secondary: #6b7280;--border-color: #e5e7eb;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--border-radius: 8px;--transition: all .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--secondary-color)}.hidden{display:none!important}.text-center{text-align:center}.flex{display:flex}.flex-column{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.gap-1{gap:1rem}.mt-1{margin-top:1rem}.mb-1{margin-bottom:1rem}.p-1{padding:1rem}.loading-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:#ffffffe6;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:9999}.loading-spinner{width:40px;height:40px;border:4px solid var(--secondary-color);border-top:4px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}