body{margin:0;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}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}:root{--primary-color: #4a6fa5;--secondary-color: #6c757d;--background-color: #f8f9fa;--user-message-bg: #e9f0f8;--agent-message-bg: #ffffff;--border-color: #dee2e6;--text-color: #212529;--error-color: #dc3545}body{margin:0;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-color:var(--background-color);color:var(--text-color)}.App{display:flex;flex-direction:column;height:100vh;max-width:1200px;margin:0 auto}.chat-container{display:flex;flex-direction:column;height:100%;background-color:#fff;border-radius:8px;box-shadow:0 2px 10px #0000001a;overflow:hidden}.chat-header{padding:1rem;background-color:var(--primary-color);color:#fff;text-align:center;border-bottom:1px solid var(--border-color)}.chat-header h1{margin:0;font-size:1.5rem}.message-list{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:1rem}.message{max-width:80%;padding:.75rem 1rem;border-radius:1rem;position:relative;animation:fadeIn .3s ease-in-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.user-message{align-self:flex-end;background-color:var(--user-message-bg);border-bottom-right-radius:.25rem}.agent-message{align-self:flex-start;background-color:var(--agent-message-bg);border:1px solid var(--border-color);border-bottom-left-radius:.25rem}.message-content{word-break:break-word}.message-status{font-size:.75rem;color:var(--secondary-color);margin-top:.25rem;display:block}.message-status.error{color:var(--error-color)}.input-area{padding:1rem;border-top:1px solid var(--border-color);background-color:#fff}.input-area label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.input-container{display:flex;gap:.5rem}.input-container textarea{flex:1;padding:.75rem;border:1px solid var(--border-color);border-radius:.5rem;resize:none;height:2.5rem;max-height:150px;font-family:inherit;font-size:1rem;line-height:1.5}.input-container textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #4a6fa533}.input-container button{padding:.75rem 1.5rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:.5rem;cursor:pointer;font-weight:600;transition:background-color .2s}.input-container button:hover:not(:disabled){background-color:#3a5a8c}.input-container button:disabled{background-color:var(--secondary-color);cursor:not-allowed;opacity:.7}.typing-indicator{display:flex;align-items:center;padding:.5rem 1rem;background-color:var(--agent-message-bg);border:1px solid var(--border-color);border-radius:1rem 1rem 1rem .25rem;align-self:flex-start;margin-top:.5rem}.typing-indicator span{width:8px;height:8px;background-color:var(--secondary-color);border-radius:50%;display:inline-block;margin:0 1px;animation:bounce 1.4s infinite ease-in-out}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@media (max-width: 768px){.message{max-width:90%}.input-container{flex-direction:column}.input-container button{align-self:flex-end}}@media (max-width: 480px){.chat-header h1{font-size:1.25rem}.message{max-width:95%;padding:.5rem .75rem}.input-area{padding:.75rem}}