html,body,#root{min-width:320px;min-height:100%}:root{--primary-color: #4f46e5;--primary-hover: #4338ca;--correct-color: #10b981;--wrong-color: #ef4444;--bg-light: #f9fafb;--border-color: #e5e7eb;--text-dark: #1f2937;--text-light: #6b7280;--bg-color: #ffffff;--card-bg: #ffffff;--shadow: rgba(0, 0, 0, .1)}:root.dark-mode{--primary-color: #6366f1;--primary-hover: #818cf8;--correct-color: #34d399;--wrong-color: #f87171;--bg-light: #1f1f2b;--bg-color: #121212;--card-bg: #1f1f2b;--border-color: #374151;--text-dark: #ffffff;--text-light: #e0e0e0;--shadow: rgba(0, 0, 0, .5)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInScale{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}*{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 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