*{margin:0;padding:0;box-sizing:border-box}body,html,#root{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.chat-container{display:flex;flex-direction:column;height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.chat-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:20px;box-shadow:0 4px 6px #0000001a;display:flex;justify-content:space-between;align-items:center}.header-title{display:flex;align-items:center;gap:15px}.header-title h1{font-size:24px;font-weight:700}.header-title p{font-size:14px;opacity:.9;margin-top:4px}.clear-button{background:#fff3;border:none;color:#fff;padding:10px 20px;border-radius:25px;cursor:pointer;font-size:14px;font-weight:600;transition:all .2s}.clear-button:hover{background:#ffffff4d;transform:scale(1.05)}.error-banner{background:#fee2e2;border-left:4px solid #ef4444;padding:16px;color:#991b1b;display:flex;justify-content:space-between;align-items:center}.error-close{background:none;border:none;color:#ef4444;cursor:pointer;font-size:18px;font-weight:700}.messages-container{flex:1;overflow-y:auto;padding:20px;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}.messages-wrapper{max-width:900px;margin:0 auto}.message-bubble{display:flex;align-items:flex-end;gap:12px;margin-bottom:20px;animation:fadeIn .3s ease-out}.message-bubble.user{justify-content:flex-end}.message-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;flex-shrink:0}.message-avatar.agent{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.message-avatar.user{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff}.message-content{max-width:70%;padding:16px 20px;border-radius:20px;box-shadow:0 2px 8px #0000001a}.message-content.agent{background:#fff;color:#1f2937;border-bottom-left-radius:4px}.message-content.user{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-bottom-right-radius:4px}.message-text{white-space:pre-wrap;word-wrap:break-word;line-height:1.6;font-size:15px}.message-time{font-size:12px;margin-top:8px;text-align:right;opacity:.7}.typing-indicator{display:flex;align-items:center;gap:12px;margin-bottom:20px;animation:fadeIn .3s ease-out}.typing-dots{background:#fff;padding:16px 20px;border-radius:20px 20px 20px 4px;display:flex;gap:6px;box-shadow:0 2px 8px #0000001a}.typing-dot{width:8px;height:8px;background:#9ca3af;border-radius:50%;animation:bounce 1.4s infinite ease-in-out}.typing-dot:nth-child(1){animation-delay:-.32s}.typing-dot:nth-child(2){animation-delay:-.16s}.input-container{background:#fff;padding:20px;box-shadow:0 -4px 6px #0000000d}.input-wrapper{max-width:900px;margin:0 auto}.input-form{display:flex;gap:12px;align-items:center}.input-textarea{flex:1;padding:14px 20px;border:2px solid #e5e7eb;border-radius:25px;font-size:15px;font-family:inherit;resize:none;min-height:48px;max-height:120px;transition:border-color .2s}.input-textarea:focus{outline:none;border-color:#667eea}.input-textarea:disabled{background:#f3f4f6;cursor:not-allowed}.send-button{width:50px;height:50px;border:none;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:50%;cursor:pointer;font-size:20px;transition:all .2s;flex-shrink:0;display:flex;align-items:center;justify-content:center}.send-button:hover:not(:disabled){transform:scale(1.1);box-shadow:0 4px 12px #667eea66}.send-button:disabled{opacity:.5;cursor:not-allowed}.input-hint{text-align:center;font-size:13px;color:#6b7280;margin-top:12px}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.messages-container::-webkit-scrollbar{width:8px}.messages-container::-webkit-scrollbar-track{background:transparent}.messages-container::-webkit-scrollbar-thumb{background:#0003;border-radius:4px}.messages-container::-webkit-scrollbar-thumb:hover{background:#0000004d}