:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}#root{max-width:100%;margin:0;padding:0;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.chat-container{max-width:900px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;background:#fff;box-shadow:0 10px 40px #0003}.chat-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:2rem;text-align:center;box-shadow:0 2px 10px #0000001a}.chat-header h1{margin:0 0 .5rem;font-size:2rem}.chat-header p{margin:0;opacity:.9;font-size:1rem}.chat-messages{flex:1;overflow-y:auto;padding:2rem;background:#f8f9fa}.welcome-message{text-align:center;padding:3rem 2rem;color:#666}.welcome-message h2{color:#667eea;margin-bottom:1rem}.welcome-message ul{list-style:none;padding:0;margin-top:1rem}.welcome-message li{padding:.5rem;color:#764ba2;font-style:italic}.chat-message{margin-bottom:1.5rem;padding:1rem 1.5rem;border-radius:12px;animation:slideIn .3s ease}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chat-message.user{background:#e3f2fd;border-left:4px solid #2196f3;margin-left:2rem}.chat-message.ai{background:#f3e5f5;border-left:4px solid #9c27b0;margin-right:2rem}.chat-message.loading{opacity:.7}.chat-message strong{display:block;margin-bottom:.5rem;color:#333;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px}.chat-content{line-height:1.6;color:#333}.chat-content p{margin:.5rem 0}.chat-content a{color:#667eea;text-decoration:underline}.chat-form{display:flex;gap:1rem;padding:1.5rem;background:#fff;border-top:2px solid #e0e0e0;box-shadow:0 -2px 10px #0000000d}.chat-input{flex:1;padding:1rem;border-radius:8px;border:2px solid #e0e0e0;font-size:1rem;font-family:inherit;resize:vertical;min-height:60px;transition:border-color .3s}.chat-input:focus{outline:none;border-color:#667eea}.chat-input::placeholder{color:#999}.chat-button{padding:1rem 2rem;border-radius:8px;border:none;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-weight:700;font-size:1rem;cursor:pointer;transition:transform .2s,box-shadow .2s;min-width:100px}.chat-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.chat-button:disabled{opacity:.6;cursor:not-allowed}.chat-messages::-webkit-scrollbar{width:8px}.chat-messages::-webkit-scrollbar-track{background:#f1f1f1}.chat-messages::-webkit-scrollbar-thumb{background:#667eea;border-radius:4px}.chat-messages::-webkit-scrollbar-thumb:hover{background:#764ba2}