@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";*{margin:0;padding:0;box-sizing:border-box}:root{--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif}.app.light{--bg-primary: #ffffff;--bg-secondary: #f7f7f8;--bg-tertiary: #ececf1;--bg-input: #ffffff;--text-primary: #1a1a1a;--text-secondary: #666666;--text-tertiary: #999999;--border-color: #e5e5e5;--accent-color: #7c3aed;--accent-hover: #6d28d9;--user-bubble: #7c3aed;--user-bubble-text: #ffffff;--assistant-bubble: #f7f7f8;--assistant-bubble-text: #1a1a1a;--error-bg: #fef2f2;--error-text: #dc2626;--error-border: #fecaca;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1)}.app.dark{--bg-primary: #212121;--bg-secondary: #2f2f2f;--bg-tertiary: #3d3d3d;--bg-input: #2f2f2f;--text-primary: #ececec;--text-secondary: #b4b4b4;--text-tertiary: #8e8e8e;--border-color: #3d3d3d;--accent-color: #a78bfa;--accent-hover: #8b5cf6;--user-bubble: #7c3aed;--user-bubble-text: #ffffff;--assistant-bubble: #2f2f2f;--assistant-bubble-text: #ececec;--error-bg: #3b1c1c;--error-text: #f87171;--error-border: #7f1d1d;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 6px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .4)}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);height:100vh;height:100dvh;overflow:hidden}#root{height:100%}.app{display:flex;flex-direction:column;height:100%;background-color:var(--bg-primary);transition:background-color .3s ease,color .3s ease}.header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background-color:var(--bg-primary);border-bottom:1px solid var(--border-color);flex-shrink:0;z-index:100}.header-left{display:flex;align-items:center;gap:12px}.logo{width:36px;height:36px;background:linear-gradient(135deg,#7c3aed,#a78bfa);border-radius:8px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md)}.logo-icon{color:#fff;font-size:18px;font-weight:700}.header-title h1{font-size:1.125rem;font-weight:600;color:var(--text-primary);line-height:1.2}.header-title .subtitle{font-size:.75rem;color:var(--text-tertiary)}.header-right{display:flex;align-items:center;gap:8px}.theme-toggle{width:36px;height:36px;border:none;background-color:var(--bg-tertiary);border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-secondary);transition:all .2s ease}.theme-toggle:hover{background-color:var(--border-color);color:var(--text-primary)}.chat-window{flex:1;display:flex;flex-direction:column;overflow:hidden;background-color:var(--bg-primary)}.messages{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px}@media (max-width: 768px){.messages{padding:16px;gap:12px}}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;text-align:center;animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.empty-logo{width:72px;height:72px;background:linear-gradient(135deg,#7c3aed,#a78bfa);border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:24px;box-shadow:var(--shadow-lg)}.empty-logo span{color:#fff;font-size:32px;font-weight:700}.empty-state h2{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin-bottom:8px}.empty-state p{font-size:1rem;color:var(--text-secondary);max-width:400px;margin-bottom:32px}.suggestion-cards{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.suggestion-card{display:flex;align-items:center;gap:10px;padding:14px 20px;background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;cursor:pointer;transition:all .2s ease;font-size:.9375rem;color:var(--text-primary);font-family:inherit}.suggestion-card:hover{background-color:var(--bg-tertiary);border-color:var(--accent-color);transform:translateY(-2px);box-shadow:var(--shadow-md)}.suggestion-icon{font-size:1.25rem}.message{display:flex;align-items:flex-start;gap:12px;max-width:85%;animation:messageIn .3s ease}@keyframes messageIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end;flex-direction:row-reverse}.message.assistant{align-self:flex-start}.avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:14px;font-weight:600}.assistant-avatar{background:linear-gradient(135deg,#7c3aed,#a78bfa);color:#fff}.user-avatar{background-color:var(--bg-tertiary);color:var(--text-secondary)}.message-wrapper{display:flex;flex-direction:column;gap:4px}.message-content{padding:12px 16px;border-radius:18px;line-height:1.5;font-size:.9375rem;word-wrap:break-word;white-space:pre-wrap}.message.user .message-content{background-color:var(--user-bubble);color:var(--user-bubble-text);border-bottom-right-radius:4px}.message.assistant .message-content{background-color:var(--assistant-bubble);color:var(--assistant-bubble-text);border-bottom-left-radius:4px}.message-time{font-size:.6875rem;color:var(--text-tertiary);padding:0 4px}.message.user .message-time{text-align:right}.message.error{align-self:center;max-width:100%;background-color:var(--error-bg);border:1px solid var(--error-border);border-radius:12px;padding:12px 16px;display:flex;align-items:center;gap:12px}.error-icon{color:var(--error-text);flex-shrink:0}.error-content{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.error-content span{color:var(--error-text);font-size:.875rem}.retry-button{padding:6px 12px;background-color:var(--error-text);color:#fff;border:none;border-radius:6px;font-size:.75rem;font-weight:500;cursor:pointer;transition:opacity .2s;font-family:inherit}.retry-button:hover{opacity:.9}.typing-indicator{display:flex;gap:4px;padding:4px 0}.typing-indicator span{width:8px;height:8px;background-color:var(--text-tertiary);border-radius:50%;animation:typingBounce 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}.typing-indicator span:nth-child(3){animation-delay:0s}@keyframes typingBounce{0%,80%,to{transform:scale(.6);opacity:.5}40%{transform:scale(1);opacity:1}}.input-area{padding:16px 24px 24px;background-color:var(--bg-primary);border-top:1px solid var(--border-color);flex-shrink:0}@media (max-width: 768px){.input-area{padding:12px 16px 20px}}.input-container{display:flex;align-items:flex-end;gap:12px;background-color:var(--bg-input);border:1px solid var(--border-color);border-radius:24px;padding:8px 8px 8px 16px;transition:border-color .2s,box-shadow .2s;box-shadow:var(--shadow-sm)}.input-container:focus-within{border-color:var(--accent-color);box-shadow:0 0 0 2px #7c3aed26}.input-container textarea{flex:1;padding:8px 0;border:none;background:transparent;font-size:1rem;font-family:inherit;color:var(--text-primary);resize:none;outline:none;min-height:24px;max-height:200px;line-height:1.5}.input-container textarea::placeholder{color:var(--text-tertiary)}.send-button{width:40px;height:40px;background:linear-gradient(135deg,#7c3aed,#a78bfa);border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#fff;transition:all .2s ease;flex-shrink:0}.send-button:hover:not(:disabled){transform:scale(1.05);box-shadow:var(--shadow-md)}.send-button:active:not(:disabled){transform:scale(.95)}.send-button:disabled{opacity:.4;cursor:not-allowed}.input-footer{display:flex;align-items:center;justify-content:space-between;margin-top:8px;padding:0 8px}.connection-status{font-size:.75rem;color:var(--text-tertiary)}.connection-status:empty{display:none}.clear-chat{font-size:.75rem;color:var(--text-tertiary);background:none;border:none;cursor:pointer;padding:4px 8px;border-radius:4px;transition:all .2s;font-family:inherit}.clear-chat:hover{color:var(--text-secondary);background-color:var(--bg-tertiary)}.messages::-webkit-scrollbar{width:6px}.messages::-webkit-scrollbar-track{background:transparent}.messages::-webkit-scrollbar-thumb{background-color:var(--border-color);border-radius:3px}.messages::-webkit-scrollbar-thumb:hover{background-color:var(--text-tertiary)}@media (max-width: 480px){.header{padding:10px 16px}.logo{width:32px;height:32px}.logo-icon{font-size:16px}.header-title h1{font-size:1rem}.header-title .subtitle{display:none}.message{max-width:90%}.avatar{width:28px;height:28px;font-size:12px}.message-content{padding:10px 14px;font-size:.875rem}.empty-logo{width:56px;height:56px}.empty-logo span{font-size:24px}.empty-state h2{font-size:1.5rem}.empty-state p{font-size:.875rem}.suggestion-card{padding:12px 16px;font-size:.875rem}}