:root{--chat-primary-color:#4a90e2;--chat-bg-color:#ffffff;--chat-text-color:#333333;--chat-border-radius:12px;--chat-shadow:0 5px 20px rgba(0, 0, 0, 0.15)}[data-theme=dark]{--chat-bg-color:#2d2d2d;--chat-text-color:#e0e0e0}.chat-launcher{position:fixed;bottom:20px;right:20px;width:60px;height:60px;background-color:var(--chat-primary-color);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;cursor:pointer;box-shadow:0 4px 10px rgba(74,144,226,.3);transition:transform .3s ease,box-shadow .3s ease;z-index:1100}.chat-launcher:hover{transform:scale(1.1);box-shadow:0 6px 15px rgba(74,144,226,.4)}.chat-window{position:fixed;bottom:90px;right:20px;width:350px;height:500px;max-height:80vh;background-color:var(--chat-bg-color);border-radius:var(--chat-border-radius);box-shadow:var(--chat-shadow);display:flex;flex-direction:column;z-index:1100;overflow:hidden;transition:opacity .3s ease,transform .3s ease;border:1px solid rgba(0,0,0,.1)}.chat-window.hidden{visibility:hidden;opacity:0;transform:translateY(20px);pointer-events:none}.chat-header{padding:15px;background-color:var(--chat-primary-color);color:#fff;display:flex;align-items:center;justify-content:space-between}.chat-avatar img{width:32px;height:32px;border-radius:50%;border:2px solid rgba(255,255,255,.8)}.chat-title{flex-grow:1;margin-left:10px;display:flex;align-items:center}.chat-title h3{margin:0;font-size:16px;font-weight:600}.status-dot{width:8px;height:8px;background-color:#4cd964;border-radius:50%;margin-left:8px;box-shadow:0 0 0 2px rgba(255,255,255,.2)}.close-btn{background:0 0;border:none;color:#fff;font-size:24px;cursor:pointer;padding:0;line-height:1}.chat-messages{flex-grow:1;padding:15px;overflow-y:auto;display:flex;flex-direction:column;gap:15px;background-color:var(--chat-bg-color)}.message{display:flex;max-width:85%}.message.user{align-self:flex-end}.message.assistant{align-self:flex-start}.message-content{padding:10px 14px;border-radius:12px;font-size:14px;line-height:1.5;word-wrap:break-word}.message.user .message-content{background-color:var(--chat-primary-color);color:#fff;border-bottom-right-radius:2px}.message.assistant .message-content{background-color:#f0f2f5;color:#333;border-bottom-left-radius:2px}[data-theme=dark] .message.assistant .message-content{background-color:#3e3e3e;color:#e0e0e0}[data-theme=dark] .chat-input-area{border-top:1px solid rgba(255,255,255,.1)}[data-theme=dark] #chat-input{border-color:rgba(255,255,255,.2)}.chat-input-area{padding:15px;border-top:1px solid rgba(0,0,0,.1);display:flex;align-items:flex-end;gap:10px;background-color:var(--chat-bg-color)}#chat-input{flex-grow:1;border:1px solid #ddd;border-radius:20px;padding:10px 15px;font-family:inherit;font-size:14px;resize:none;max-height:100px;outline:none;background-color:var(--chat-bg-color);color:var(--chat-text-color)}#chat-input:focus{border-color:var(--chat-primary-color)}#send-btn{background-color:var(--chat-primary-color);color:#fff;border:none;border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s}#send-btn:hover{background-color:#357abd}#send-btn:disabled{background-color:#ccc;cursor:not-allowed}.typing-indicator{display:flex;gap:4px;padding:4px 0}.typing-indicator span{width:6px;height:6px;background-color:#90949c;border-radius:50%;animation:bounce 1.4s infinite ease-in-out both}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,100%{transform:scale(0)}40%{transform:scale(1)}}.message-content p{margin:0 0 8px}.message-content p:last-child{margin-bottom:0}.message-content code{background-color:rgba(0,0,0,.1);padding:2px 4px;border-radius:4px;font-family:monospace}.message-content pre{background-color:rgba(0,0,0,.1);padding:8px;border-radius:6px;overflow-x:auto;margin:8px 0}