:root{--orange-primary: #ff6b35;--orange-hover: #ff8555;--orange-light: #fff5f2;--grey-dark: #2d3436;--grey-medium: #636e72;--grey-light: #b2bec3;--grey-bg: #f8f9fa;--grey-border: #dfe6e9;--white: #ffffff}*{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;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--grey-bg);color:var(--grey-dark)}#root{height:100vh}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--grey-light);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--grey-medium)}.interactive-background{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;overflow:hidden;background:linear-gradient(135deg,#4b5563,#2f3237)}.background-canvas{position:absolute;top:0;left:0;width:100%;height:100%}.background-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 50% 50%,transparent 0%,rgba(0,0,0,.3) 100%);pointer-events:none}.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;position:relative;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.login-content{position:relative;z-index:1;width:100%;max-width:440px;padding:20px}.login-box{background:#fffffffa;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:24px;box-shadow:0 20px 60px #0000004d;overflow:hidden;border:1px solid rgba(255,255,255,.2);animation:slideUp .6s cubic-bezier(.16,1,.3,1);padding:40px}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.login-box h1{text-align:center;margin:0 0 32px;background:linear-gradient(135deg,#4b5563,#2f3237);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:40px;font-weight:800;letter-spacing:-1px}.login-form{padding:0}.form-group{margin-bottom:24px}.form-group label{display:block;margin-bottom:10px;font-weight:700;font-size:12px;color:var(--chat-text-secondary);text-transform:uppercase;letter-spacing:.5px}.form-group input{width:100%;padding:14px 18px;border:2px solid var(--chat-border-primary);border-radius:12px;font-size:15px;box-sizing:border-box;transition:all .3s cubic-bezier(.16,1,.3,1);color:var(--chat-text-primary);background:var(--chat-bg-primary);font-family:inherit}.form-group input:focus{outline:none;border-color:var(--chat-primary);box-shadow:0 0 0 4px #4b55631a;background:#fafbff;transform:translateY(-1px)}.form-group input::placeholder{color:var(--chat-text-quaternary)}.error-message{background:linear-gradient(135deg,#fee2e2,#fecaca);color:#991b1b;padding:14px 18px;border-radius:12px;margin-bottom:24px;font-size:14px;border:1px solid #fca5a5;font-weight:500;display:flex;align-items:center;gap:10px;animation:shake .4s ease}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.error-message:before{content:"⚠";font-size:18px}.login-btn{width:100%;padding:16px;background:var(--chat-primary-gradient);color:var(--chat-text-white);border:none;border-radius:12px;font-size:16px;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.16,1,.3,1);box-shadow:0 4px 14px #4b556366;letter-spacing:.3px;text-transform:uppercase;font-size:14px}.login-btn:hover:not(:disabled){background:var(--chat-primary-gradient-hover);transform:translateY(-2px);box-shadow:0 6px 20px #4b556380}.login-btn:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 8px #4b55634d}.login-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.loading{display:flex;align-items:center;justify-content:center;height:100vh;font-size:18px;color:var(--chat-text-tertiary);background:var(--chat-bg-secondary)}@media(max-width:768px){.login-content{padding:16px;max-width:100%}.login-box{border-radius:20px;padding:32px 28px}.login-box h1{font-size:32px;margin-bottom:28px}.form-group{margin-bottom:20px}.form-group label{font-size:11px;margin-bottom:8px}.form-group input{padding:13px 16px;font-size:14px;border-radius:10px}.login-btn{padding:14px;font-size:13px;border-radius:10px}.error-message{padding:12px 16px;font-size:13px;border-radius:10px}}@media(max-width:480px){.login-content{padding:12px}.login-box{border-radius:18px;padding:28px 24px}.login-box h1{font-size:28px;margin-bottom:24px}.form-group{margin-bottom:18px}.form-group input{padding:12px 15px;font-size:14px}.login-btn{padding:13px;font-size:13px}.error-message{padding:11px 15px;font-size:12px}}:root{--chat-primary: #4b5563;--chat-primary-hover: #6b7280;--chat-primary-light: #9ca3af;--chat-primary-dark: #374151;--chat-primary-darker: #1f2937;--chat-primary-gradient: linear-gradient(135deg, #4b5563 0%, #2f3237 100%);--chat-primary-gradient-hover: linear-gradient(135deg, #6b7280 0%, #374151 100%);--chat-orange-primary: #ff6b35;--chat-orange-hover: #ff8555;--chat-orange-light: #fff5f2;--chat-bg-primary: #ffffff;--chat-bg-secondary: #f8f9fa;--chat-bg-tertiary: #f8fafc;--chat-bg-quaternary: #f1f5f9;--chat-bg-light: #fafafa;--chat-bg-gradient: linear-gradient(135deg, #f9fafb 0%, #e9ecef 100%);--chat-bg-hover: #f3f4f6;--chat-text-primary: #1e293b;--chat-text-secondary: #475569;--chat-text-tertiary: #636e72;--chat-text-quaternary: #94a3b8;--chat-text-light: #b2bec3;--chat-text-white: #ffffff;--chat-border-primary: #e5e7eb;--chat-border-secondary: #dfe6e9;--chat-border-tertiary: #f1f5f9;--chat-border-light: #cbd5e1;--chat-border-focus: #4b5563;--chat-header-bg: linear-gradient(135deg, #232930 0%, #25272c 100%);--chat-sidebar-bg: #ffffff;--chat-button-primary: linear-gradient(135deg, #4b5563 0%, #2f3237 100%);--chat-button-primary-hover: linear-gradient(135deg, #6b7280 0%, #374151 100%);--chat-button-secondary-bg: #f1f5f9;--chat-button-secondary-color: #475569;--chat-button-secondary-border: #e2e8f0;--chat-message-sent-bg: linear-gradient(135deg, #4b5563 0%, #2f3237 100%);--chat-message-sent-color: #ffffff;--chat-message-received-bg: #ffffff;--chat-message-received-color: #1e293b;--chat-message-received-border: #e5e7eb;--chat-input-bg: #ffffff;--chat-input-border: #e5e7eb;--chat-input-border-focus: #4b5563;--chat-input-placeholder: #b2bec3;--chat-card-bg: #ffffff;--chat-card-border: #e5e7eb;--chat-card-shadow: 0 8px 32px rgba(0, 0, 0, .08);--chat-card-shadow-hover: 0 12px 40px rgba(0, 0, 0, .12);--chat-modal-bg: #ffffff;--chat-modal-header-bg: #ffffff;--chat-modal-overlay: rgba(0, 0, 0, .5);--chat-badge-bg: linear-gradient(135deg, #4b5563 0%, #2f3237 100%);--chat-badge-color: #ffffff;--chat-badge-count-bg: rgba(255, 255, 255, .3);--chat-success-color: #10b981;--chat-success-bg: #d1fae5;--chat-warning-color: #f59e0b;--chat-warning-bg: #fef3c7;--chat-danger-color: #ef4444;--chat-danger-bg: #fee2e2;--chat-info-color: #3b82f6;--chat-info-bg: #eff6ff;--chat-shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);--chat-shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--chat-shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--chat-shadow-lg: 0 8px 16px rgba(0, 0, 0, .1);--chat-shadow-xl: 0 12px 24px rgba(0, 0, 0, .15);--chat-shadow-primary: 0 2px 8px rgba(75, 85, 99, .3);--chat-shadow-primary-hover: 0 4px 12px rgba(75, 85, 99, .4);--chat-overlay-light: rgba(255, 255, 255, .1);--chat-overlay-medium: rgba(255, 255, 255, .2);--chat-overlay-dark: rgba(0, 0, 0, .5)}:root{--primary: var(--chat-primary);--primary-hover: var(--chat-primary-hover);--primary-gradient: var(--chat-primary-gradient);--primary-gradient-hover: var(--chat-primary-gradient-hover);--orange-primary: var(--chat-orange-primary);--orange-hover: var(--chat-orange-hover);--orange-light: var(--chat-orange-light);--grey-dark: var(--chat-text-primary);--grey-medium: var(--chat-text-tertiary);--grey-light: var(--chat-text-light);--grey-bg: var(--chat-bg-secondary);--grey-border: var(--chat-border-primary);--white: var(--chat-text-white);--header-bg: var(--chat-header-bg)}.chat-container{display:flex;height:100vh;background:var(--grey-bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;animation:fadeIn .4s ease}.chat-sidebar{width:340px;background:var(--white);border-right:none;display:flex;flex-direction:column;animation:slideInLeft .4s cubic-bezier(.4,0,.2,1)}@keyframes slideInLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.sidebar-header{padding:24px 20px;border-bottom:none;display:flex;justify-content:space-between;align-items:center;background:var(--header-bg);position:relative;overflow:hidden}.sidebar-header:before{content:"";position:absolute;top:-50%;right:-10%;width:200px;height:200px;background:#ffffff0d;border-radius:50%}.user-info{display:flex;gap:12px;align-items:center;flex:1;min-width:0;position:relative;z-index:1}.user-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary-gradient);display:flex;align-items:center;justify-content:center;color:var(--white);font-weight:600;font-size:15px;text-transform:uppercase;flex-shrink:0;border:2px solid rgba(255,255,255,.2);transition:all .3s cubic-bezier(.4,0,.2,1)}.group-icon{width:15px;height:15px;object-fit:contain}.user-name{font-weight:700;font-size:15px;color:var(--white);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-role{font-size:12px;color:#ffffffb3;text-transform:capitalize}.logout-btn{background:#ffffff1a;border:none;cursor:pointer;color:var(--white);padding:8px;border-radius:8px;transition:all .3s cubic-bezier(.4,0,.2,1);flex-shrink:0;width:36px;height:36px;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}.logout-btn:hover{transform:scale(1.05);background:#fff3;transform:translateY(-2px)}.logout-btn svg{width:18px;height:18px}.new-chat-btn{flex:1;padding:11px 16px;background:var(--primary-gradient);color:var(--white);border:none;border-radius:8px;cursor:pointer;font-weight:600;font-size:14px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 2px 8px #4b55634d;white-space:nowrap}.new-chat-btn:hover{background:var(--primary-gradient-hover);transform:translateY(-2px);box-shadow:0 4px 12px #4b556366}.new-chat-btn:active{transform:translateY(0);box-shadow:0 2px 6px #4b55634d}.new-chat-buttons-container{display:flex;gap:12px;margin:16px 20px}.role-filter-container{padding:0 20px 12px;border-bottom:1px solid var(--grey-border)}.role-filter-scroll{display:flex;gap:8px;overflow-x:auto;overflow-y:hidden;padding:4px 0;scrollbar-width:none;-ms-overflow-style:none}.role-filter-scroll::-webkit-scrollbar{display:none}.role-filter-btn{flex-shrink:0;padding:7px 16px;background:var(--grey-bg);color:var(--grey-dark);border:1px solid var(--grey-border);border-radius:20px;cursor:pointer;font-size:13px;font-weight:500;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;gap:6px;text-transform:capitalize;white-space:nowrap}.role-filter-btn:hover{background:var(--grey-bg);border-color:var(--primary);color:var(--primary);transform:translateY(-1px);box-shadow:0 2px 6px #4b556333}.role-filter-btn:active{transform:translateY(0)}.role-filter-btn.active{background:var(--primary-gradient);color:var(--white);border-color:var(--primary);box-shadow:0 2px 8px #4b55634d;transform:scale(1.02)}.role-count{background:#ffffff4d;padding:2px 7px;border-radius:10px;font-size:11px;font-weight:600;min-width:20px;text-align:center}.role-filter-btn.active .role-count{background:#ffffff40}.no-conversations-message{padding:60px 20px;text-align:center;color:var(--grey-medium);font-size:14px}.user-list-modal{position:absolute;top:130px;left:20px;width:300px;background:var(--white);border-radius:12px;box-shadow:0 8px 32px #0000001f;z-index:100;max-height:400px;display:flex;flex-direction:column;border:1px solid var(--grey-border);overflow:hidden;animation:slideDownFadeIn .3s cubic-bezier(.4,0,.2,1) forwards;transform-origin:top center}.user-list-modal.closing{animation:slideUpFadeOut .25s cubic-bezier(.4,0,.2,1) forwards}@keyframes slideDownFadeIn{0%{opacity:0;transform:translateY(-10px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes slideUpFadeOut{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-10px) scale(.95)}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--grey-border);background:var(--white);border-radius:12px 12px 0 0}.modal-header h3{margin:0;font-size:15px;font-weight:600;color:var(--grey-dark)}.modal-header button{background:none;border:none;font-size:20px;cursor:pointer;color:var(--grey-medium);width:30px;height:30px;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all .3s cubic-bezier(.4,0,.2,1)}.modal-header button:hover{transform:rotate(90deg);background:var(--grey-bg);color:var(--primary)}.search-input{margin:16px 20px;padding:11px 16px;border:1px solid var(--grey-border);border-radius:8px;font-size:14px;transition:all .3s cubic-bezier(.4,0,.2,1);color:var(--grey-dark);background:var(--white)}.search-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4b556314;transform:translateY(-1px)}.search-input::placeholder{color:var(--grey-light)}.user-list{overflow-y:auto;max-height:280px}.user-item{display:flex;gap:12px;padding:11px 20px;cursor:pointer;align-items:center;transition:all .3s cubic-bezier(.4,0,.2,1);background:var(--white);animation:fadeInSlideRight .3s ease forwards;opacity:0}.user-item:nth-child(1){animation-delay:.05s}.user-item:nth-child(2){animation-delay:.1s}.user-item:nth-child(3){animation-delay:.15s}.user-item:nth-child(4){animation-delay:.2s}.user-item:nth-child(5){animation-delay:.25s}.user-item:nth-child(n+6){animation-delay:.3s}@keyframes fadeInSlideRight{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.user-item:hover{background:var(--grey-bg);transform:translate(2px)}.user-details{flex:1;min-width:0}.user-details .user-name{font-weight:600;font-size:14px;color:var(--grey-dark)}.user-details .user-role{font-size:12px;color:var(--grey-medium);text-transform:capitalize}.conversations-list{flex:1;overflow-y:auto}.conversations-list::-webkit-scrollbar{width:6px}.conversations-list::-webkit-scrollbar-track{background:transparent}.conversations-list::-webkit-scrollbar-thumb{background:var(--grey-light);border-radius:3px}.conversations-list::-webkit-scrollbar-thumb:hover{background:var(--grey-medium)}.conversation-item{animation:fadeInUp .3s ease forwards;opacity:0}.conversation-item:nth-child(1){animation-delay:.05s}.conversation-item:nth-child(2){animation-delay:.1s}.conversation-item:nth-child(3){animation-delay:.15s}.conversation-item:nth-child(4){animation-delay:.2s}.conversation-item:nth-child(5){animation-delay:.25s}.conversation-item:nth-child(n+6){animation-delay:.3s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.conversation-item{display:flex;gap:12px;padding:12px 20px;cursor:pointer;border-bottom:1px solid var(--grey-border);align-items:center;transition:all .3s cubic-bezier(.4,0,.2,1)}.conversation-item:hover{transform:translate(3px);background:var(--grey-bg)}.conversation-item.active{transform:translate(0);background:#f3f4f6;border-left:3px solid var(--primary);padding-left:17px}.conversation-info{flex:1;min-width:0}.conversation-header{display:flex;justify-content:space-between;margin-bottom:4px;align-items:center}.conversation-name{font-weight:600;font-size:14px;color:var(--grey-dark)}.conversation-time{font-size:11px;color:var(--grey-medium);flex-shrink:0;margin-left:8px}.conversation-preview{display:flex;justify-content:space-between;align-items:center;gap:8px}.last-message{font-size:13px;color:var(--grey-medium);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-indicator{font-size:12px;color:var(--grey-medium);margin-right:2px}.conversation-item .message-indicator{color:var(--primary)}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.unread-badge{animation:pulse 2s ease-in-out infinite;background:var(--primary-gradient);color:var(--white);border-radius:10px;padding:2px 8px;font-size:11px;font-weight:700;min-width:18px;text-align:center;flex-shrink:0}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.chat-main{animation:slideInRight .4s cubic-bezier(.4,0,.2,1);flex:1;display:flex;flex-direction:column;background:var(--white);position:relative}.chat-header{padding:24px 32px;border-bottom:none;background:var(--header-bg);box-shadow:0 2px 8px #0000001a;position:relative;overflow:hidden}.chat-header:before{content:"";position:absolute;top:-50%;right:-10%;width:200px;height:200px;background:#ffffff0d;border-radius:50%}.chat-user-info{display:flex;gap:12px;align-items:center;position:relative;z-index:1}.chat-user-name{font-weight:700;font-size:16px;color:var(--white)}.chat-user-role{font-size:12px;color:#ffffffb3;text-transform:capitalize}.messages-container{flex:1;overflow-y:auto;padding:20px 32px;background:var(--grey-bg);display:flex;flex-direction:column;position:relative}.messages-container::-webkit-scrollbar{width:8px}.messages-container::-webkit-scrollbar-track{background:transparent}.messages-container::-webkit-scrollbar-thumb{background:var(--grey-light);border-radius:4px}.messages-container::-webkit-scrollbar-thumb:hover{background:var(--grey-medium)}.message{display:flex;flex-direction:column;margin-bottom:12px;max-width:60%;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.sent{align-self:flex-end;align-items:flex-end}.message.received{align-self:flex-start;align-items:flex-start}.message-sender-name{font-size:12px;font-weight:600;color:var(--primary);margin-bottom:4px;padding:0 4px}.message-content{padding:11px 16px;border-radius:14px;word-wrap:break-word;word-break:break-word;overflow-wrap:break-word;line-height:1.5;font-size:14px;white-space:pre-wrap;max-width:100%}.message.sent .message-content{background:var(--primary-gradient);color:var(--white);border-bottom-right-radius:4px;box-shadow:0 2px 8px #4b556333}.message.received .message-content{background:var(--white);color:var(--grey-dark);border:1px solid var(--grey-border);border-bottom-left-radius:4px;box-shadow:0 1px 2px #0000000a}.message-footer{display:flex;align-items:center;gap:6px;margin-top:4px;padding:0 4px}.message-time{font-size:11px;color:var(--grey-medium)}.message-status{display:flex;align-items:center;justify-content:center}.message-status.sent{color:var(--grey-medium)}.message-status.seen{color:var(--orange-primary)}.message-status svg{width:14px;height:14px}.message-input-container{display:flex;gap:12px;padding:18px 32px;border-top:1px solid var(--grey-border);background:var(--white);align-items:flex-end}.message-input{flex:1;padding:11px 18px;border:2px solid var(--grey-border);border-radius:24px;font-size:14px;transition:all .3s cubic-bezier(.4,0,.2,1);color:var(--grey-dark);resize:none;min-height:44px;max-height:110px;overflow-y:hidden;font-family:inherit;line-height:1.5;scrollbar-width:none;-ms-overflow-style:none}.message-input::-webkit-scrollbar{display:none}.message-input.at-max-height{overflow-y:auto;scrollbar-width:thin;-ms-overflow-style:auto}.message-input.at-max-height::-webkit-scrollbar{display:block;width:6px}.message-input.at-max-height::-webkit-scrollbar-track{background:transparent}.message-input.at-max-height::-webkit-scrollbar-thumb{background:var(--grey-light);border-radius:3px}.message-input.at-max-height::-webkit-scrollbar-thumb:hover{background:var(--grey-medium)}.message-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4b556314}.message-input::placeholder{color:var(--grey-light)}.send-btn{padding:11px 28px;background:var(--primary-gradient);color:var(--white);border:none;border-radius:24px;cursor:pointer;font-weight:600;font-size:14px;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 8px #4b55634d;flex-shrink:0;height:44px;align-self:flex-end}.send-btn:hover{background:var(--primary-gradient-hover);transform:translateY(-1px);box-shadow:0 4px 12px #4b556366}.send-btn:hover svg{transform:rotate(45deg)}.send-btn svg{transition:transform .3s ease}.send-btn:active{transform:translateY(0)}.new-messages-indicator{position:absolute;bottom:100px;left:32px;background:var(--primary-gradient);color:var(--white);border:none;border-radius:50%;width:48px;height:48px;font-size:13px;font-weight:700;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;box-shadow:0 4px 12px #4b556366;transition:all .3s;z-index:10;animation:slideUpBounce .3s ease}.new-messages-indicator:hover{background:var(--primary-gradient-hover);transform:translateY(-2px);box-shadow:0 6px 16px #4b556380}.new-messages-indicator svg{width:16px;height:16px;animation:bounce 1s infinite}@keyframes 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