*{box-sizing:border-box}html,body{margin:0;padding:0}.chat-fab{z-index:9999;cursor:pointer;color:#fff;background:linear-gradient(135deg,#06c,#00a86b);border:none;border-radius:50%;justify-content:center;align-items:center;width:58px;height:58px;transition:transform .2s,box-shadow .2s;display:flex;position:fixed;bottom:28px;right:28px;box-shadow:0 4px 20px #0066cc73}.chat-fab:hover{transform:scale(1.08);box-shadow:0 6px 28px #0066cc8c}.chat-fab-badge{background:#f44;border:2px solid #fff;border-radius:50%;width:12px;height:12px;animation:1.8s infinite chatPulse;position:absolute;top:6px;right:6px}@keyframes chatPulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.3)}}.chat-panel{z-index:9998;background:#fff;border-radius:16px;flex-direction:column;width:380px;max-height:560px;animation:.25s cubic-bezier(.34,1.56,.64,1) chatSlideUp;display:flex;position:fixed;bottom:100px;right:28px;overflow:hidden;box-shadow:0 12px 48px #0000002e,0 2px 8px #00000014}@keyframes chatSlideUp{0%{opacity:0;transform:translateY(20px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}.chat-header{background:linear-gradient(135deg,#06c,#005bb8);flex-shrink:0;justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.chat-header-brand{align-items:center;gap:10px;display:flex}.chat-header-title{color:#fff;font-family:Arial,sans-serif;font-size:.95rem;font-weight:700;line-height:1.2}.chat-header-sub{color:#fffc;align-items:center;gap:5px;margin-top:1px;font-family:Arial,sans-serif;font-size:.72rem;display:flex}.chat-online-dot{background:#4ade80;border-radius:50%;flex-shrink:0;width:7px;height:7px;display:inline-block}.chat-close-btn{color:#fff;cursor:pointer;background:#ffffff26;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;transition:background .15s;display:flex}.chat-close-btn:hover{background:#ffffff47}.chat-messages{scrollbar-width:thin;scrollbar-color:#cbd5e1 #f8fafc;background:#f8fafc;flex-direction:column;flex:1;gap:12px;padding:16px;display:flex;overflow-y:auto}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}.chat-msg{align-items:flex-end;gap:8px;max-width:100%;display:flex}.chat-msg-assistant{flex-direction:row}.chat-msg-user{flex-direction:row-reverse}.chat-msg-avatar{background:#e0eeff;border-radius:50%;flex-shrink:0;margin-bottom:2px;padding:2px}.chat-msg-bubble{word-break:break-word;border-radius:16px;max-width:calc(100% - 36px);padding:10px 13px;font-family:Arial,sans-serif;font-size:.875rem;line-height:1.55}.chat-msg-assistant .chat-msg-bubble{color:#1a2332;background:#fff;border:1px solid #e2e8f0;border-bottom-left-radius:4px;box-shadow:0 1px 3px #0000000f}.chat-msg-user .chat-msg-bubble{color:#fff;background:linear-gradient(135deg,#06c,#0052a3);border-bottom-right-radius:4px}.chat-typing{align-items:center;gap:4px;height:18px;display:inline-flex}.chat-typing span{background:#94a3b8;border-radius:50%;width:7px;height:7px;animation:1.2s ease-in-out infinite chatDot;display:inline-block}.chat-typing span:nth-child(2){animation-delay:.2s}.chat-typing span:nth-child(3){animation-delay:.4s}@keyframes chatDot{0%,80%,to{opacity:.5;transform:scale(.7)}40%{opacity:1;transform:scale(1.1)}}.chat-input-area{background:#fff;border-top:1px solid #e2e8f0;flex-shrink:0;align-items:flex-end;gap:8px;padding:12px 14px;display:flex}.chat-input{resize:none;color:#1a2332;border:1px solid #e2e8f0;border-radius:12px;outline:none;flex:1;max-height:120px;padding:9px 13px;font-family:Arial,sans-serif;font-size:.875rem;line-height:1.5;transition:border-color .2s;overflow-y:auto}.chat-input:focus{border-color:#06c;box-shadow:0 0 0 3px #0066cc1a}.chat-input:disabled{color:#94a3b8;background:#f8fafc}.chat-send-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#06c,#005bb8);border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;transition:opacity .15s,transform .15s;display:flex}.chat-send-btn:hover:not(:disabled){opacity:.9;transform:scale(1.05)}.chat-send-btn:disabled{cursor:not-allowed;background:#cbd5e1}.chat-footer-note{text-align:center;color:#94a3b8;background:#fff;border-top:1px solid #f1f5f9;margin:0;padding:6px 12px 8px;font-family:Arial,sans-serif;font-size:.68rem}@media (max-width:480px){.chat-panel{width:auto;bottom:90px;left:12px;right:12px}.chat-fab{bottom:20px;right:16px}}