:root{--bg-light: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--bg-dark: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 100%);--text-light: #2d3748;--text-dark: #f7fafc;--bubble-light: rgba(255, 255, 255, .95);--bubble-dark: rgba(45, 55, 72, .95);--accent: #4299e1;--accent-hover: #3182ce;--user-bubble: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--bot-bubble-light: #ffffff;--bot-bubble-dark: #2d3748;--shadow: 0 4px 20px rgba(0, 0, 0, .1);--shadow-dark: 0 4px 20px rgba(0, 0, 0, .3)}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{width:100%;height:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;overflow:hidden}.app{display:flex;justify-content:center;align-items:center;height:100vh;width:100vw;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative}.app.light{background:var(--bg-light);color:var(--text-light)}.app.dark{background:var(--bg-dark);color:var(--text-dark)}.bubbles-container{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1}.bubble{position:absolute;bottom:-100px;background:#ffffff1a;border:2px solid rgba(255,255,255,.2);border-radius:50%;animation:float-up linear infinite;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.app.dark .bubble{background:#ffffff0d;border-color:#ffffff1a}@keyframes float-up{0%{transform:translateY(0) rotate(0);opacity:0}10%{opacity:1}90%{opacity:1}to{transform:translateY(-100vh) rotate(360deg);opacity:0}}.chat-container{display:flex;flex-direction:column;width:90%;max-width:450px;height:85vh;border-radius:24px;overflow:hidden;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.2);transition:all .3s ease;z-index:2;position:relative}.app.light .chat-container{background:var(--bubble-light);box-shadow:var(--shadow)}.app.dark .chat-container{background:var(--bubble-dark);box-shadow:var(--shadow-dark);border:1px solid rgba(255,255,255,.1)}.chat-header{flex-shrink:0;padding:20px;background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;align-items:center}.header-left{display:flex;align-items:center;gap:12px}.header-actions{display:flex;gap:8px;align-items:center}.header-content{display:flex;align-items:center;gap:12px}.header-icon{color:#667eea;animation:gentle-pulse 3s ease-in-out infinite}.app.dark .header-icon{color:#a78bfa}@keyframes gentle-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.header-text h1{font-size:20px;font-weight:700;color:#1a1a2e;margin:0}.header-text p{font-size:12px;color:#666;margin:2px 0 0}.app.dark .header-text h1{color:#fff}.app.dark .header-text p{color:#a0a0a0}.status-online{color:#48bb78!important}.status-offline{color:#f56565!important}.theme-toggle{background:#677eea33;border:none;border-radius:12px;padding:8px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);color:#667eea}.theme-toggle:hover{transform:translateY(-2px) rotate(15deg);background:#677eea4d;box-shadow:0 8px 25px #677eea4d}.app.dark .theme-toggle{background:#a78bfa33;color:#a78bfa}.app.dark .theme-toggle:hover{background:#a78bfa4d;box-shadow:0 8px 25px #a78bfa4d}.chat-window-container{flex:1;display:flex;flex-direction:column;overflow:hidden;padding:20px 20px 0}.chat-window{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:16px;scroll-behavior:smooth;padding-bottom:20px}.chat-window::-webkit-scrollbar{width:6px}.chat-window::-webkit-scrollbar-track{background:transparent}.chat-window::-webkit-scrollbar-thumb{background:#677eea4d;border-radius:3px}.welcome-section{text-align:center;color:#1a1a2e;margin-top:20px}.welcome-icon{color:#667eea;margin-bottom:20px;animation:gentle-bounce 2s ease-in-out infinite}.app.dark .welcome-section{color:#fff}.app.dark .welcome-icon{color:#a78bfa}@keyframes gentle-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.welcome-section h2{font-size:24px;margin-bottom:8px;font-weight:600}.welcome-section p{font-size:16px;opacity:.7;margin-bottom:30px}.connection-warning{background:#f565651a;color:#f56565;padding:12px 16px;border-radius:16px;font-size:14px;border:1px solid rgba(245,101,101,.2);margin-bottom:20px}.example-queries{display:flex;flex-direction:column;gap:12px}.example-query{background:#677eea1a;padding:12px 16px;border-radius:16px;font-size:14px;border:1px solid rgba(103,126,234,.2);transition:all .3s ease;cursor:pointer}.example-query:hover{background:#677eea33;transform:translateY(-2px);box-shadow:0 5px 15px #677eea33}.app.dark .example-query{background:#a78bfa1a;border-color:#a78bfa33}.app.dark .example-query:hover{background:#a78bfa33;box-shadow:0 5px 15px #a78bfa33}.message-wrapper{display:flex;animation:slide-up .5s cubic-bezier(.4,0,.2,1)}.message-wrapper.user{justify-content:flex-start}.message-wrapper.agent{justify-content:flex-end}.message{max-width:80%;padding:16px 20px;border-radius:20px;position:relative;box-shadow:0 4px 12px #0000001a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.message.user{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-bottom-left-radius:8px;margin-right:20px}.message.agent{background:#ffffffe6;color:#1a1a2e;border-bottom-right-radius:8px;margin-left:20px;display:flex;align-items:flex-start;gap:10px}.app.dark .message.agent{background:#ffffff1a;color:#fff}.message-icon{color:#667eea;margin-top:2px;flex-shrink:0}.app.dark .message-icon{color:#a78bfa}.message-content{flex:1;line-height:1.5}.message-time{font-size:10px;opacity:.6;margin-top:4px;text-align:left}.message-wrapper.agent .message-time{text-align:right}@keyframes slide-up{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.typing-message{background:#677eea1a!important}.app.dark .typing-message{background:#a78bfa1a!important}.typing-indicator{display:flex;gap:4px;align-items:center;padding:4px 0}.typing-indicator span{width:6px;height:6px;border-radius:50%;background:#667eea;animation:typing-dot 1.5s ease-in-out infinite}.app.dark .typing-indicator span{background:#a78bfa}.typing-indicator span:nth-child(1){animation-delay:0s}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing-dot{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-10px);opacity:1}}.input-section{flex-shrink:0;padding:20px;border-top:1px solid rgba(0,0,0,.1);background:#fffc;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);position:relative;bottom:0}.app.dark .input-section{background:#00000080;border-top-color:#ffffff1a}.input-wrapper{display:flex;gap:12px;align-items:flex-end}.chat-input{flex:1;padding:16px 20px;border:2px solid rgba(103,126,234,.2);border-radius:25px;font-size:16px;outline:none;background:#ffffffe6;color:#1a1a2e;transition:all .3s cubic-bezier(.4,0,.2,1);resize:vertical;min-height:50px;max-height:150px;font-family:inherit}.chat-input:focus{border-color:#667eea;background:#fff;box-shadow:0 0 0 4px #677eea1a;transform:translateY(-1px)}.chat-input:disabled{opacity:.5;cursor:not-allowed}.app.dark .chat-input{background:#0000004d;color:#fff;border-color:#a78bfa33}.app.dark .chat-input:focus{border-color:#a78bfa;background:#00000080;box-shadow:0 0 0 4px #a78bfa1a}.send-button{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);color:#fff;box-shadow:0 4px 15px #677eea66;flex-shrink:0}.send-button:hover:not(:disabled){transform:translateY(-2px) rotate(15deg);box-shadow:0 6px 20px #677eea99}.send-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.app.dark .send-button{background:linear-gradient(135deg,#a78bfa,#c084fc);box-shadow:0 4px 15px #a78bfa66}.app.dark .send-button:hover:not(:disabled){box-shadow:0 6px 20px #a78bfa99}.search-bar{width:100%;padding:12px 16px;margin-bottom:12px;border:2px solid rgba(103,126,234,.2);border-radius:25px;font-size:14px;outline:none;background:#ffffffe6;color:#1a1a2e;transition:all .3s ease;flex-shrink:0}.search-bar:focus{border-color:#667eea;background:#fff;box-shadow:0 0 0 4px #677eea1a;transform:translateY(-1px)}.app.dark .search-bar{background:#0000004d;color:#fff;border-color:#a78bfa33}.app.dark .search-bar:focus{border-color:#a78bfa;background:#00000080;box-shadow:0 0 0 4px #a78bfa1a}.export-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;padding:8px 14px;font-size:14px;cursor:pointer;transition:all .3s ease}.export-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #677eea66}.app.dark .export-btn{background:linear-gradient(135deg,#a78bfa,#c084fc)}.app.dark .export-btn:hover{box-shadow:0 4px 12px #a78bfa66}.clear-btn{background:linear-gradient(135deg,#f56565,#f87171);color:#fff;border:none;border-radius:12px;padding:8px 14px;font-size:14px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #f5656566}.clear-btn:hover{transform:translateY(-2px);box-shadow:0 6px 15px #f5656599}.clear-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.app.dark .clear-btn{background:linear-gradient(135deg,#f87171,#fb7185);box-shadow:0 4px 12px #fb718566}.app.dark .clear-btn:hover{box-shadow:0 6px 15px #fb718599}@media (max-width: 768px){.app{padding:10px}.chat-container{width:95%;height:90vh}.header-actions{flex-wrap:wrap;gap:6px}.export-btn,.clear-btn{padding:6px 10px;font-size:12px}}@media (min-width: 768px){.chat-container{max-width:500px}}