@media (max-width: 768px){.chat-mobile-container{-webkit-overflow-scrolling:touch;scrollbar-width:none;-ms-overflow-style:none}.chat-mobile-container::-webkit-scrollbar{display:none}}.chat-transition{transition:all .3s ease-in-out}@media (max-width: 768px){.chat-touch-target{min-height:48px;padding:12px 16px}.chat-button{min-width:44px;min-height:44px}}@media (max-width: 768px){.chat-input-container{padding:8px 12px;background-color:#f8f9fa;border-top:1px solid #e0e0e0}.chat-input-field{border-radius:20px;background-color:#fff}}@media (max-width: 768px){.chat-message{max-width:85%;margin-bottom:8px}.chat-message-own{margin-left:auto}.chat-message-other{margin-right:auto}}.chat-mobile-header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background-color:#fffffff2;border-bottom:1px solid #e0e0e0}@media (max-width: 768px){.chat-users-list{background-color:#fff}.chat-user-item{border-bottom:1px solid #f0f0f0;transition:background-color .2s ease}.chat-user-item:hover{background-color:#f8f9fa}.chat-user-item:active{background-color:#e3f2fd}}@media (max-width: 768px){.chat-empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;text-align:center;padding:20px}}.chat-messages-container{scroll-behavior:smooth;-webkit-overflow-scrolling:touch}.chat-connection-status{position:fixed;top:0;left:0;right:0;height:3px;background-color:#4caf50;z-index:1000;transition:background-color .3s ease}.chat-connection-status.disconnected{background-color:#f44336}.chat-focus-visible:focus-visible{outline:2px solid #1976d2;outline-offset:2px}@media (prefers-color-scheme: dark){.chat-dark-mode{background-color:#121212;color:#fff}.chat-dark-mode .chat-message-own{background-color:#1976d2}.chat-dark-mode .chat-message-other{background-color:#424242}}