body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background-color:#f4f4f9;color:#333}.app-container{display:flex;flex-direction:column;height:100vh}header{background-color:#282c34;padding:1rem;color:#fff;display:flex;justify-content:space-between;align-items:center}header button{margin-left:10px;padding:5px 10px;cursor:pointer}.login-container{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh}.login-card{background:#fff;padding:2rem;border-radius:8px;box-shadow:0 4px 6px #0000001a;text-align:center}.login-card button{display:block;width:100%;margin:10px 0;padding:10px;font-size:16px;cursor:pointer}.chat-container{display:flex;flex-direction:column;flex:1;padding:1rem;max-width:800px;margin:0 auto;width:100%}.controls{margin-bottom:1rem}.messages{flex:1;background:#fff;border-radius:8px;padding:1rem;overflow-y:auto;box-shadow:0 2px 4px #0000000d;margin-bottom:1rem}.message{margin-bottom:10px;padding:10px;border-radius:5px}.message.user{background-color:#e3f2fd;text-align:right}.message.agent{background-color:#f5f5f5}.message p{margin:.5em 0}.skeleton-container{display:flex;flex-direction:column;gap:8px;margin-top:10px}.skeleton-line{height:16px;background-color:#d1d5db;border-radius:4px;animation:pulse 1.5s infinite ease-in-out}@keyframes pulse{0%{opacity:.6}50%{opacity:.2}to{opacity:.6}}.chat-image-preview{max-width:100%;max-height:250px;border-radius:6px;margin-top:5px;margin-bottom:5px;display:block}.selected-image-container{position:relative;display:inline-block;width:fit-content;padding:5px;background:#fff;border-radius:8px;border:1px solid #ddd}.selected-image-preview{height:60px;border-radius:4px}.remove-image-btn{position:absolute;top:-8px;right:-8px;background:#ff4d4f;color:#fff;border:none;border-radius:50%;width:20px;height:20px;cursor:pointer}.input-area{display:flex;gap:10px}.input-area input{flex:1;padding:10px}