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90rem){.m-xxl-0{margin:0!important}.m-xxl-1{margin:.25rem!important}.m-xxl-2{margin:.5rem!important}.m-xxl-3{margin:.75rem!important}.m-xxl-4{margin:1rem!important}.m-xxl-5{margin:1.25rem!important}.m-xxl-6{margin:1.5rem!important}.p-xxl-0{padding:0!important}.p-xxl-1{padding:.25rem!important}.p-xxl-2{padding:.5rem!important}.p-xxl-3{padding:.75rem!important}.p-xxl-4{padding:1rem!important}.p-xxl-5{padding:1.25rem!important}.p-xxl-6{padding:1.5rem!important}}.touch-optimized{-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.touch-optimized:active{transform:scale(.95);transition:transform .1s ease}.scroll-optimized{-webkit-overflow-scrolling:touch;scrollbar-width:none;-ms-overflow-style:none}.scroll-optimized::-webkit-scrollbar{display:none}@supports (padding: max(0px)){.safe-area-inset{padding-top:max(var(--spacing-sm),env(safe-area-inset-top));padding-right:max(var(--spacing-sm),env(safe-area-inset-right));padding-bottom:max(var(--spacing-sm),env(safe-area-inset-bottom));padding-left:max(var(--spacing-sm),env(safe-area-inset-left))}.safe-area-top{padding-top:max(var(--spacing-sm),env(safe-area-inset-top))}.safe-area-bottom{padding-bottom:max(var(--spacing-sm),env(safe-area-inset-bottom))}}@media (max-width: 48rem){:root{--mobile-header-height: 3.5rem;--mobile-tab-height: 3rem}html,body{overflow-x:hidden}input[type=color],input[type=date],input[type=datetime],input[type=datetime-local],input[type=email],input[type=month],input[type=number],input[type=password],input[type=search],input[type=tel],input[type=text],input[type=time],input[type=url],input[type=week],select,textarea{font-size:1rem}input[type=text],input[type=search],input[type=tel],input[type=email],textarea{font-size:1rem;line-height:1.4;-webkit-appearance:none;border-radius:0;padding:var(--spacing-sm) var(--spacing-md)}.chat-input,.message-input,.search-input{font-size:1rem;line-height:1.5;padding:var(--spacing-sm) var(--spacing-md)}.text-mobile-base{font-size:var(--font-size-md)}.text-mobile-sm{font-size:var(--font-size-sm)}.text-mobile-lg{font-size:var(--font-size-lg)}.text-mobile-xl{font-size:var(--font-size-xl)}.text-mobile-2xl{font-size:var(--font-size-2xl)}h1{font-size:calc(var(--font-size-2xl) * 1.5)}h2{font-size:calc(var(--font-size-xl) * 1.2)}h3{font-size:var(--font-size-lg)}h4{font-size:var(--font-size-md)}h5,h6{font-size:var(--font-size-sm)}.message-content h1,.message-content h2,.message-content h3,.message-content h4,.message-content h5,.message-content h6{font-size:1rem}p,.message-content li{font-size:1rem;line-height:1.6}.btn{font-size:var(--font-size-md);padding:var(--spacing-sm) var(--spacing-lg)}.btn-sm{font-size:var(--font-size-sm);padding:var(--spacing-xs) var(--spacing-md)}.btn-lg{font-size:var(--font-size-lg);padding:var(--spacing-md) var(--spacing-xl)}}@media (max-width: 375px){*{margin:0;padding:0}.container{padding:0 var(--spacing-xs)}.no-select{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.text-mobile-optimized{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;letter-spacing:.01em;word-spacing:.05em;-webkit-hyphens:auto;hyphens:auto}}@media (max-width: 22.5rem){.xs-hidden{display:none}.xs-text-center{text-align:center}.xs-w-full{width:100%}.card{margin:.5rem;padding:1rem}}@media (max-width: 48rem) and (orientation: landscape){.chat-messages{max-height:calc(100vh - 7.5rem)}.sidebar{max-height:100vh;overflow-y:auto}h1{font-size:var(--font-size-xl)}h2{font-size:var(--font-size-lg)}h3{font-size:var(--font-size-md)}.message-content h1,.message-content h2,.message-content h3,.message-content h4,.message-content h5,.message-content h6{font-size:1rem}.message-content li{font-size:1rem;line-height:1.6}}@media (hover: none) and (pointer: coarse){.hover-only{display:none}.touch-friendly{min-height:var(--touch-target-min);min-width:var(--touch-target-min)}.btn{min-height:var(--touch-target-comfortable);padding:var(--spacing-sm) var(--spacing-lg)}}@media (-webkit-min-device-pixel-ratio: 2),(min-resolution: 192dpi){.high-dpi-optimized{image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges}}@media (max-width: 48rem){.mobile-animate{will-change:transform;backface-visibility:hidden;perspective:1000px}.reduce-motion{animation-duration:.2s;transition-duration:.2s}}@media (max-width: 48rem){.mobile-form .form-group{margin-bottom:var(--spacing-lg)}.mobile-form .form-group .form-label{font-size:var(--font-size-sm);margin-bottom:var(--spacing-sm);display:block}.mobile-form .form-group .form-control{padding:var(--spacing-sm);font-size:1rem;border-radius:var(--border-radius);border:1px solid var(--border-color);width:100%;min-height:var(--touch-target-min)}.mobile-form .form-group .form-control:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 2px #667eea33}.mobile-form .form-group .form-error{font-size:var(--font-size-xs);color:var(--danger-color);margin-top:var(--spacing-xs)}}@media (max-width: 48rem){.mobile-card{margin:.5rem;border-radius:.75rem;box-shadow:0 .125rem .25rem #0000001a;overflow:hidden}.mobile-card .card-header{padding:1rem;border-bottom:1px solid #eee}.mobile-card .card-header .card-title{font-size:1.125rem;font-weight:600;margin:0;color:#2c3e50}.mobile-card .card-body{padding:1rem;font-size:.875rem;color:#495057;line-height:1.6}.mobile-card .card-footer{padding:.5rem 1rem;border-top:1px solid #eee;background:#f8f9fa}}@media (max-width: 48rem){.mobile-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:9999;display:flex;align-items:flex-end;justify-content:center}.mobile-modal .modal-content{background:var(--background-primary);border-radius:var(--border-radius-lg) var(--border-radius-lg) 0 0;width:100%;max-height:80vh;overflow-y:auto;transform:translateY(100%);transition:transform .3s ease}.mobile-modal .modal-content.modal-show{transform:translateY(0)}.mobile-modal .modal-content .modal-header{padding:var(--spacing-lg);border-bottom:1px solid var(--border-color)}.mobile-modal .modal-content .modal-header .modal-title{font-size:var(--font-size-xl);font-weight:600;margin:0;color:var(--text-primary)}.mobile-modal .modal-content .modal-body{padding:var(--spacing-lg);font-size:var(--font-size-base);line-height:1.6}.mobile-modal .modal-content .modal-footer{padding:var(--spacing-lg);border-top:1px solid var(--border-color);display:flex;gap:var(--spacing-sm);justify-content:flex-end}}@media (max-width: 48rem){.chat-container{height:calc(var(--mobile-vh, 1vh) * 100);min-height:calc(var(--mobile-vh, 1vh) * 100);display:flex;flex-direction:column;position:relative;overflow:hidden}.chat-container .chat-header{padding:var(--spacing-sm) var(--spacing-md);background:var(--background-primary);border-bottom:1px solid var(--border-color);min-height:var(--mobile-header-height)}.chat-container .chat-header .chat-title{font-size:var(--font-size-lg);font-weight:600;margin:0;color:var(--text-primary)}.chat-container .chat-messages{flex:1;overflow-y:auto;padding:var(--spacing-md)}.chat-container .chat-messages .message{margin-bottom:var(--spacing-md)}.chat-container .chat-messages .message.message-sent .message-content{background:var(--primary-color);color:#fff;margin-left:var(--spacing-2xl)}.chat-container .chat-messages .message.message-received .message-content{background:var(--background-secondary);color:var(--text-primary);margin-right:var(--spacing-2xl)}.chat-container .chat-messages .message .message-content{padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius);font-size:var(--font-size-base);line-height:1.5}.chat-container .chat-messages .message .message-time{font-size:var(--font-size-xs);color:var(--text-muted);margin-top:var(--spacing-xs)}.chat-container .chat-input-container{padding:var(--spacing-sm);background:var(--background-primary);border-top:1px solid var(--border-color)}.chat-container .chat-input-container .chat-input{width:100%;padding:var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:1rem;resize:none;min-height:var(--touch-target-min);max-height:6rem}.chat-container .chat-input-container .chat-input:focus{border-color:var(--primary-color);outline:none}.chat-container .chat-input-container .send-button{margin-top:var(--spacing-sm);width:100%;padding:var(--spacing-sm) var(--spacing-md);background:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);font-size:var(--font-size-base);min-height:var(--touch-target-min);cursor:pointer}.chat-container .chat-input-container .send-button:disabled{background:var(--text-muted);cursor:not-allowed}}@media (max-width: 768px){.mobile-nav{position:fixed;bottom:0;left:0;right:0;background:var(--background-primary);border-top:1px solid var(--border-color);padding:var(--spacing-xs) 0;z-index:1000}.mobile-nav .nav-items{display:flex;justify-content:space-around;align-items:center}.mobile-nav .nav-item{display:flex;flex-direction:column;align-items:center;padding:var(--spacing-xs) var(--spacing-sm);text-decoration:none;color:var(--text-secondary);min-width:var(--touch-target-min)}.mobile-nav .nav-item.active{color:var(--primary-color)}.mobile-nav .nav-item .nav-icon{font-size:var(--font-size-lg);margin-bottom:var(--spacing-xs)}.mobile-nav .nav-item .nav-label{font-size:var(--font-size-xs)}.has-mobile-nav{padding-bottom:var(--mobile-tab-height)}}.input-container{position:relative}.input-container .selected-files{display:flex;flex-direction:row;gap:8px;position:absolute;bottom:100%;left:0;margin-bottom:8px;z-index:1000;max-width:none}.input-container .selected-files .file-card{position:relative;display:flex;align-items:center;gap:8px;background:transparent;border:1px solid #ddd;border-radius:6px;padding:4px 8px 4px 4px;pointer-events:auto;width:200px;flex-shrink:0}.input-container .selected-files .file-card .file-icon{position:relative;flex-shrink:0;width:28px;height:28px;background:transparent;border:1px solid #ccc;border-radius:4px;display:flex;align-items:center;justify-content:center;color:#666}.input-container .selected-files .file-card .file-icon svg{width:16px;height:16px}.input-container .selected-files .file-card .file-remove{position:absolute;top:-6px;right:-6px;width:16px;height:16px;border-radius:50%;background:#999;border:none;color:#fff;font-size:12px;font-weight:700;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;z-index:100}.input-container .selected-files .file-card .file-remove:hover{background:#666;transform:scale(1.1)}.input-container .selected-files .file-card .file-name{font-size:12px;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;flex:1}@media (min-width: 48.0625rem){.input-container .selected-files .file-card{padding:6px 10px 6px 6px;border-radius:8px;width:200px;flex-shrink:0}.input-container .selected-files .file-card .file-icon{width:32px;height:32px;border-radius:6px}.input-container .selected-files .file-card .file-icon svg{width:18px;height:18px}.input-container .selected-files .file-card .file-remove{width:18px;height:18px;font-size:13px}.input-container .selected-files .file-card .file-name{font-size:13px}}@media (max-width: 48rem){.input-container .selected-files{flex-direction:column}.input-container .selected-files .file-card{width:100%;padding:4px 8px 4px 4px;border-radius:6px;background:#fff;box-shadow:0 1px 3px #0000001a}.input-container .selected-files .file-card .file-icon{width:28px;height:28px;border-radius:4px}.input-container .selected-files .file-card .file-icon svg{width:16px;height:16px}.input-container .selected-files .file-card .file-remove{width:16px;height:16px;font-size:12px}.input-container .selected-files .file-card .file-name{font-size:12px}}@media (min-width: 1025px){.input-container .selected-files .file-card{padding:6px 10px 6px 6px;border-radius:8px;width:200px}.input-container .selected-files .file-card .file-icon{width:32px;height:32px;border-radius:6px}.input-container .selected-files .file-card .file-icon svg{width:18px;height:18px}.input-container .selected-files .file-card .file-remove{width:18px;height:18px;font-size:14px}.input-container .selected-files .file-card .file-name{font-size:13px}}