.chat-container{position:fixed;top:0;left:0;right:0;bottom:0;z-index:9999;display:flex;align-items:center;justify-content:center}.chat-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.chat-modal{position:relative;width:90%;max-width:1200px;height:90%;max-height:800px;background:#fff;border-radius:12px;box-shadow:0 20px 40px rgba(0,0,0,.1);display:flex;flex-direction:column;overflow:hidden}.chat-modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid #e5e7eb;background:#f9fafb}.chat-modal-title{display:flex;align-items:center;gap:12px}.chat-modal-title h2{margin:0;font-size:18px;font-weight:600;color:#111827}.total-unread-badge{background:#ef4444;color:#fff;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:600;min-width:20px;text-align:center}.chat-close-button{background:none;border:none;padding:8px;border-radius:8px;cursor:pointer;color:#6b7280;transition:all .2s ease}.chat-close-button:hover{background:#f3f4f6;color:#374151}.chat-modal-content{flex:1 1;overflow:hidden}.chat-desktop-layout{display:flex;height:100%}.chat-list-section{width:350px;border-right:1px solid #e5e7eb;background:#f9fafb}.chat-window-section{flex:1 1;display:flex;flex-direction:column}.chat-mobile-layout{height:100%;display:flex;flex-direction:column}.chat-mobile-header{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid #e5e7eb;background:#f9fafb}.back-button{background:none;border:none;padding:8px 12px;margin-right:12px;border-radius:6px;cursor:pointer;color:#6b7280;font-weight:500;transition:all .2s ease}.back-button:hover{background:#f3f4f6;color:#374151}.chat-list-container{height:100%;display:flex;flex-direction:column}.chat-list-header{padding:20px;border-bottom:1px solid #e5e7eb}.chat-list-header h3{margin:0 0 16px;font-size:16px;font-weight:600;color:#111827}.search-box{position:relative}.search-input{width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:8px;font-size:14px;background:#fff;transition:border-color .2s ease}.search-input:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,.1)}.chat-list-body{flex:1 1;overflow-y:auto;padding:8px}.chat-list-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:200px;color:#6b7280}.loading-spinner{width:24px;height:24px;border:2px solid #e5e7eb;border-top-color:#3b82f6;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:12px}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.no-chats{display:flex;flex-direction:column;align-items:center;justify-content:center;height:200px;color:#6b7280;text-align:center}.no-chats-icon{font-size:48px;margin-bottom:16px}.chat-item{display:flex;align-items:center;padding:12px 16px;border-radius:8px;cursor:pointer;transition:all .2s ease;margin-bottom:4px}.chat-item:hover{background:#f3f4f6}.chat-item.selected{background:#dbeafe}.chat-item.unread{background:#fef3c7}.chat-item-avatar{margin-right:12px;flex-shrink:0}.chat-item-content{flex:1 1;min-width:0}.chat-item-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.chat-item-name{margin:0;font-size:14px;font-weight:600;color:#111827;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item-time{font-size:12px;color:#6b7280;flex-shrink:0;margin-left:8px}.chat-item-message{display:flex;align-items:center;justify-content:space-between}.last-message{margin:0;font-size:13px;color:#6b7280;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1 1}.unread-badge{background:#ef4444;color:#fff;width:20px;height:20px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:12px;font-weight:600;margin-left:8px;flex-shrink:0;box-sizing:border-box;border:2px solid #fff}.chat-window{height:100%;display:flex;flex-direction:column}.chat-window-empty{display:flex;align-items:center;justify-content:center;height:100%;color:#6b7280}.empty-state{text-align:center}.empty-icon{font-size:48px;margin-bottom:16px}.empty-state h3{margin:0 0 8px;font-size:18px;font-weight:600;color:#111827}.empty-state p{margin:0;color:#6b7280}.chat-header{padding:16px 20px;border-bottom:1px solid #e5e7eb;background:#fff}.chat-header-info{display:flex;align-items:center}.chat-header-avatar{margin-right:12px}.chat-header-details{flex:1 1}.chat-header-name{margin:0 0 4px;font-size:16px;font-weight:600;color:#111827}.chat-header-status{margin:0;font-size:13px;color:#10b981}.messages-container{flex:1 1;overflow-y:auto;padding:20px;background:#f9fafb}.messages-list{max-width:800px;margin:0 auto}.no-messages{display:flex;flex-direction:column;align-items:center;justify-content:center;height:200px;color:#6b7280;text-align:center}.no-messages-icon{font-size:48px;margin-bottom:16px}.no-messages p{margin:0 0 8px;font-size:16px;font-weight:500;color:#111827}.no-messages small{color:#6b7280}.message-date-group{margin-bottom:24px}.message-date-divider{text-align:center;margin:20px 0;position:relative}.message-date-divider span{background:#f9fafb;padding:4px 12px;border-radius:12px;font-size:12px;color:#6b7280;font-weight:500}.new-message-separator{display:flex;align-items:center;justify-content:center;margin:16px 0;padding:0 20px}.separator-line{flex:1 1;height:1px;background:linear-gradient(90deg,transparent,#3b82f6,transparent)}.separator-text{background:#3b82f6;color:#fff;padding:4px 12px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin:0 12px;box-shadow:0 2px 4px rgba(59,130,246,.2);white-space:nowrap;min-width:-moz-fit-content;min-width:fit-content}.message-wrapper{display:flex;align-items:flex-end;margin-bottom:8px}.message-wrapper.own-message{justify-content:flex-end}.message-wrapper.other-message{justify-content:flex-start}.message-avatar{margin-right:8px;flex-shrink:0}.message-content{max-width:70%}.message-bubble{padding:12px 16px;border-radius:18px;position:relative;word-wrap:break-word}.message-bubble.own{background:#3b82f6;color:#fff;border-bottom-right-radius:4px}.message-bubble.other{background:#fff;color:#111827;border:1px solid #e5e7eb;border-bottom-left-radius:4px}.message-bubble.typing{background:#fff;border:1px solid #e5e7eb;padding:16px 20px}.message-text{margin:0 0 4px;font-size:14px;line-height:1.4}.message-time{font-size:11px;opacity:.7;display:flex;align-items:center;gap:4px}.message-status{font-size:12px}.typing-indicator{display:flex;align-items:center;gap:4px}.typing-indicator span{width:6px;height:6px;background:#9ca3af;border-radius:50%;animation:typing 1.4s ease-in-out infinite}.typing-indicator span:first-child{animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1);opacity:1}}.message-input-container{padding:20px;border-top:1px solid #e5e7eb;background:#fff}.message-input-wrapper{max-width:800px;margin:0 auto}.message-input-field{display:flex;align-items:flex-end;gap:12px;background:#f9fafb;border:1px solid #e5e7eb;border-radius:24px;padding:8px 16px;transition:border-color .2s ease;position:relative}.message-input-field:focus-within{border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,.1)}.message-textarea{flex:1 1;border:none;background:transparent;resize:none;padding:8px 0;font-size:14px;line-height:1.4;max-height:120px;outline:none}.message-textarea::placeholder{color:#9ca3af}.message-input-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.send-button{background:#3b82f6;color:#fff;border:none;padding:0;width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;position:relative}.send-button svg{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:16px;height:16px}.send-button:hover:not(:disabled){background:#2563eb;transform:scale(1.05)}.send-button:disabled{background:#9ca3af;cursor:not-allowed}.message-input-footer{display:flex;justify-content:flex-end;margin-top:8px}.character-count{font-size:12px;color:#6b7280}.chat-button-container{position:fixed;bottom:24px;right:24px;z-index:1000}.chat-floating-button{width:56px;height:56px;border-radius:50%;background:#3b82f6;color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(59,130,246,.3);transition:all .2s ease;position:relative}.chat-floating-button:hover{background:#2563eb;transform:scale(1.05);box-shadow:0 6px 16px rgba(59,130,246,.4)}.chat-button-badge{position:absolute;top:-4px;right:-4px;background:#ef4444;color:#fff;width:20px;height:20px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:12px;font-weight:600;text-align:center;border:2px solid #fff;box-sizing:border-box;z-index:2}@media (max-width:768px){.chat-modal{width:100%;height:100%;max-width:none;max-height:none;border-radius:0}.chat-desktop-layout{display:none}.chat-list-section{width:100%;border-right:none}.message-content{max-width:85%}.chat-button-container{bottom:16px;right:16px}.chat-floating-button{width:48px;height:48px}.new-message-separator{margin:14px 0;padding:0 18px}.separator-text{font-size:10px;padding:3px 10px;margin:0 10px}}@media (max-width:480px){.chat-list-header,.chat-modal-header{padding:16px 20px}.message-input-container,.messages-container{padding:16px}.message-content{max-width:90%}.new-message-separator{margin:12px 0;padding:0 16px}.separator-text{font-size:10px;padding:3px 10px;margin:0 8px}}.chat-init-button{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:#10b981;color:#fff;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;text-decoration:none}.chat-init-button:hover{background:#059669;transform:translateY(-1px);box-shadow:0 4px 8px rgba(16,185,129,.2)}.chat-init-button:disabled{background:#9ca3af;cursor:not-allowed;transform:none;box-shadow:none}.proposal-action-buttons{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.proposal-action-btn{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;text-decoration:none;text-align:center;min-width:-moz-fit-content;min-width:fit-content}.view-professional-btn{background:#3b82f6;color:#fff}.view-professional-btn:hover{background:#2563eb;transform:translateY(-1px);box-shadow:0 4px 8px rgba(59,130,246,.2)}.accept-proposal-btn{background:#10b981;color:#fff}.accept-proposal-btn:hover{background:#059669;transform:translateY(-1px);box-shadow:0 4px 8px rgba(16,185,129,.2)}.accept-proposal-btn:disabled{background:#9ca3af;cursor:not-allowed;transform:none;box-shadow:none}@media (max-width:768px){.proposal-action-buttons{gap:8px}.proposal-action-btn{padding:6px 12px;font-size:13px}}@media (max-width:480px){.proposal-action-buttons{flex-direction:column;gap:8px;width:100%}.proposal-action-btn{width:100%;justify-content:center;padding:10px 16px}}