.chat-interface{border:1px solid #ccc;border-radius:4px;padding:20px;margin:0 auto;display:flex;flex-direction:column;height:90vh;width:74vw;max-width:75vw;background-position:center;font-family:Roboto,sans-serif}.chat-heading{color:#fff;font-size:1.5rem;font-weight:500;margin-bottom:20px;padding:10px 0;border-bottom:2px solid #eee;text-align:center}.messages-container{display:flex;flex-direction:column;flex-grow:1;overflow-y:auto;padding:10px;margin-bottom:20px;border:1px solid #ddd;border-radius:4px;background-color:#e3f2fd;background-size:cover}.message{max-width:60%;padding:10px;margin:5px 0;border-radius:10px;color:#000}.message.sent{background-color:#d9fdd3;align-self:flex-end}.message.received{background-color:#efefef;align-self:flex-start}.message-input-container{display:flex;align-items:center}.message-input{flex-grow:1;padding:12px;margin:0 8px;border-radius:4px;border:1px solid #ccc;outline:none}.send-button{padding:10px 20px;border-radius:4px;background-color:#007bff;color:#fff;cursor:pointer;border:none;outline:none;transition:background-color .3s}.edited-label,.message-time,.read-status-label{font-size:.75rem;color:#000;margin-top:5px;text-align:right}.read-status-label{margin-left:10px;font-style:italic}.edit-button,.cancel-button,.delete-button{margin-left:10px;padding:5px 10px;font-size:.8rem;border-radius:4px;cursor:pointer}.edit-button{background-color:#ffca28;color:#000}.cancel-button{background-color:#bbb;color:#fff}.delete-button{background-color:#f44336;color:#fff}.edit-input{width:100%;margin-bottom:10px}.chat-container{display:flex;height:100vh}.user-list{width:20vw;flex:1;overflow-y:auto;border-right:2px solid #ccc;padding:10px}.user-item{cursor:pointer;padding:10px;border-bottom:1px solid #eee}.chat-interface{flex:3;padding:20px}.messages{margin-bottom:20px;overflow-y:auto}.message{background-color:#f1f1f1;margin:10px 0;padding:10px;border-radius:5px}.spinner{border:4px solid rgba(0,0,0,.1);width:36px;height:36px;border-radius:50%;border-left-color:#09f;animation:spin 1s ease infinite}.no-user-selected{display:flex;align-items:center;justify-content:center;height:100%;font-family:Arial,sans-serif;font-size:20px;color:#666;margin-left:6vw}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.form-container{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;width:100vw;background-color:#e1f6fb}.form{display:flex;flex-direction:column;width:100%;max-width:400px;padding:40px;border:1px solid #ccc;border-radius:10px;box-shadow:0 4px 8px #0000001a;background-color:#fff}.input{margin-bottom:10px;padding:10px;font-size:16px;border-radius:5px;border:1px solid #ddd}.button{padding:15px;font-size:16px;background-color:#007bff;color:#fff;border:none;border-radius:5px;cursor:pointer}.button.button-alt{background-color:#28a745;margin-top:10px}.error-message{color:red;font-size:14px;margin-top:10px}:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}