:root{--primary-color: #6366F1;--secondary-color: #4F46E5;--background-color: #FFFFFF;--text-color: #1F2937;--border-radius: 12px;--font-family: Inter, system-ui, sans-serif;--message-user-bg: var(--primary-color);--message-assistant-bg: #F3F4F6}*{box-sizing:border-box}.chat-container{display:flex;flex-direction:column;height:100%;width:100%;background:var(--background-color);font-family:var(--font-family);color:var(--text-color)}.chat-header{display:flex;align-items:center;gap:12px;padding:16px;border-bottom:1px solid #E5E7EB;background:var(--background-color)}.chat-header.bubble-mode{cursor:default}.chat-logo{width:36px;height:36px;border-radius:8px;object-fit:contain}.chat-title{flex:1;font-weight:600;font-size:16px}.close-button{background:none;border:none;cursor:pointer;padding:4px;color:#6b7280;border-radius:4px;display:flex;align-items:center;justify-content:center}.close-button:hover{background:#f3f4f6;color:var(--text-color)}.header-message{padding:10px 16px;background:#fef3c7;border-bottom:1px solid #FCD34D;font-size:12px;color:#92400e;line-height:1.4;white-space:pre-wrap}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.welcome-message{text-align:center;color:#6b7280;padding:24px;font-size:14px}.message{max-width:85%;padding:10px 14px;border-radius:var(--border-radius);font-size:14px;line-height:1.5;word-wrap:break-word;white-space:pre-wrap}.message.user{align-self:flex-end;background:var(--message-user-bg);color:#fff;border-bottom-right-radius:4px}.message.assistant{align-self:flex-start;background:var(--message-assistant-bg);color:var(--text-color);border-bottom-left-radius:4px}.typing-indicator{display:flex;gap:4px;padding:12px 16px;align-self:flex-start;background:var(--message-assistant-bg);border-radius:var(--border-radius);border-bottom-left-radius:4px}.typing-indicator span{width:8px;height:8px;background:#9ca3af;border-radius:50%;animation:bounce 1.4s infinite ease-in-out}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:translateY(0)}40%{transform:translateY(-6px)}}.suggestions{display:flex;flex-wrap:wrap;gap:8px;padding:8px 16px}.suggestion-chip{background:#f3f4f6;border:1px solid #E5E7EB;border-radius:16px;padding:6px 12px;font-size:13px;cursor:pointer;transition:all .15s ease}.suggestion-chip:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.chat-input-container{display:flex;gap:8px;padding:12px 16px;border-top:1px solid #E5E7EB;background:var(--background-color)}.chat-input{flex:1;border:1px solid #E5E7EB;border-radius:var(--border-radius);padding:10px 14px;font-size:14px;font-family:inherit;resize:none;outline:none;min-height:42px;max-height:120px}.chat-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 2px #6366f11a}.chat-input::placeholder{color:#9ca3af}.send-button{background:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);padding:10px 16px;cursor:pointer;font-weight:500;font-size:14px;display:flex;align-items:center;justify-content:center;transition:background .15s ease}.send-button:hover:not(:disabled){background:var(--secondary-color)}.send-button:disabled{opacity:.5;cursor:not-allowed}.powered-by{text-align:center;padding:8px;font-size:11px;color:#9ca3af}.powered-by a{color:var(--primary-color);text-decoration:none}.powered-by a:hover{text-decoration:underline}.loading-container{display:flex;align-items:center;justify-content:center;height:100%;color:#6b7280}.error-container{display:flex;align-items:center;justify-content:center;height:100%;padding:24px;text-align:center;color:#dc2626}