:root{--kac-color:#2563eb}#kac-chat-bubble{position:fixed;bottom:20px;width:56px;height:56px;background:var(--kac-color);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(0,0,0,.25);z-index:99998;transition:transform .2s,box-shadow .2s}#kac-chat-bubble:hover{transform:scale(1.08);box-shadow:0 6px 28px rgba(0,0,0,.3)}#kac-unread-badge{position:absolute;top:-4px;right:-4px;background:#ef4444;color:#fff;font-size:11px;font-weight:700;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;display:none}#kac-chat-window{position:fixed;bottom:90px;width:360px;max-height:580px;background:#fff;border-radius:16px;box-shadow:0 8px 40px rgba(0,0,0,.18);z-index:99999;display:flex;flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;overflow:hidden;animation:kac-slide-up .25s ease}@keyframes kac-slide-up{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}#kac-chat-header{background:var(--kac-color);color:#fff;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}#kac-header-info{display:flex;align-items:center;gap:10px}#kac-avatar{width:36px;height:36px;background:rgba(255,255,255,.25);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px}#kac-bot-name{font-weight:700;font-size:15px}#kac-status-text{font-size:12px;opacity:.85}#kac-close-btn{background:rgba(255,255,255,.2);border:none;color:#fff;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center}#kac-close-btn:hover{background:rgba(255,255,255,.35)}#kac-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;min-height:200px;max-height:320px}.kac-msg{display:flex;flex-direction:column;max-width:85%}.kac-msg.kac-user{align-self:flex-end;align-items:flex-end}.kac-msg.kac-bot{align-self:flex-start;align-items:flex-start}.kac-msg.kac-agent{align-self:flex-start;align-items:flex-start}.kac-msg.kac-system{align-self:center}.kac-bubble{padding:9px 13px;border-radius:14px;font-size:14px;line-height:1.5}.kac-msg.kac-user .kac-bubble{background:var(--kac-color);color:#fff;border-bottom-right-radius:4px}.kac-msg.kac-bot .kac-bubble{background:#f1f5f9;color:#1e293b;border-bottom-left-radius:4px}.kac-msg.kac-agent .kac-bubble{background:#d1fae5;color:#064e3b;border-bottom-left-radius:4px}.kac-msg.kac-system .kac-bubble{background:#fef3c7;color:#92400e;font-size:12px;border-radius:20px}.kac-msg-meta{font-size:11px;color:#9ca3af;margin-top:3px}.kac-agent-label{font-size:11px;color:#047857;font-weight:600;margin-bottom:3px}#kac-typing-indicator{padding:0 16px 8px;display:flex;gap:4px;align-items:center}#kac-typing-indicator span{width:7px;height:7px;background:#9ca3af;border-radius:50%;animation:kac-bounce .9s infinite ease-in-out}#kac-typing-indicator span:nth-child(2){animation-delay:.15s}#kac-typing-indicator span:nth-child(3){animation-delay:.3s}@keyframes kac-bounce{0%,80%,100%{transform:scale(0.6);opacity:.5}40%{transform:scale(1);opacity:1}}#kac-visitor-form{padding:16px;border-top:1px solid #f1f5f9;background:#f8fafc}#kac-visitor-form p{font-size:13px;color:#64748b;margin-bottom:10px}#kac-visitor-form input{width:100%;padding:9px 12px;border:1px solid #d1d5db;border-radius:8px;font-size:14px;margin-bottom:8px;outline:none;font-family:inherit}#kac-visitor-form input:focus{border-color:var(--kac-color)}#kac-visitor-submit{width:100%;background:var(--kac-color);color:#fff;border:none;padding:10px;border-radius:8px;font-size:14px;cursor:pointer;font-weight:600}#kac-visitor-submit:hover{opacity:.9}#kac-input-area{padding:12px;border-top:1px solid #f1f5f9;display:flex;gap:8px;align-items:flex-end;flex-shrink:0}#kac-input{flex:1;border:1px solid #d1d5db;border-radius:10px;padding:9px 12px;font-size:14px;resize:none;outline:none;font-family:inherit;max-height:100px;overflow-y:auto;line-height:1.4}#kac-input:focus{border-color:var(--kac-color)}#kac-send-btn{background:var(--kac-color);border:none;border-radius:10px;width:38px;height:38px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0}#kac-send-btn:hover{opacity:.85}#kac-agent-request-bar{padding:8px 12px;border-top:1px solid #f1f5f9;text-align:center}#kac-request-agent{background:none;border:1px solid var(--kac-color);color:var(--kac-color);padding:6px 14px;border-radius:20px;font-size:13px;cursor:pointer;transition:.15s}#kac-request-agent:hover{background:var(--kac-color);color:#fff}@media (max-width:480px){#kac-chat-window{width:calc(100vw - 20px);bottom:80px;left:10px !important;right:10px !important}}