:root{--primary-color: #00aaff;--primary-dark: #008ecc;--secondary-color: #f5f6fa;--text-color: #333;--text-light: #777;--white: #ffffff;--danger: #dc3545;--danger-dark: #721c24;--success: #28a745;--warning: #ffc107;--border-color: #ccc;--shadow: 0 2px 10px rgba(0,0,0,.1);--shadow-light: 0 2px 8px rgba(0,0,0,.05);--border-radius: 8px;--transition: all .3s ease}*{box-sizing:border-box;margin:0;padding:0}html{height:100%}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:var(--secondary-color);min-height:100vh;color:var(--text-color);line-height:1.6;overflow-x:hidden}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.mb-0{margin-bottom:0}.mt-0{margin-top:0}.mb-1{margin-bottom:10px}.mt-1{margin-top:10px}.mb-2{margin-bottom:20px}.mt-2{margin-top:20px}.d-none{display:none!important}.d-block{display:block!important}.container{display:flex;min-height:100vh;height:100%}.left-section{flex:1;background:url(/image.png) center/cover 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