*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:#333}.app{display:flex;flex-direction:column;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}header{background:#0003;color:#fff;padding:2rem;text-align:center;box-shadow:0 2px 10px #0000001a}header h1{font-size:2.5rem;margin-bottom:.5rem}header p{font-size:1rem;opacity:.9}main{flex:1;padding:2rem;max-width:800px;margin:0 auto;width:100%}section{background:#fff;border-radius:12px;padding:1.5rem;margin-bottom:1.5rem;box-shadow:0 4px 15px #0000001a}section h2{color:#667eea;margin-bottom:1rem;font-size:1.3rem}.status-items{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.status-item{display:flex;justify-content:space-between;padding:.75rem;background:#f5f5f5;border-radius:8px;border-left:4px solid #ccc;font-weight:500}.status-item.active{background:#e8f5e9;border-left-color:#4caf50;color:#2e7d32}.error-box{background:#ffebee;border:2px solid #f44336;color:#c62828;padding:1rem;border-radius:8px;margin-bottom:1.5rem}.button-group{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem}.btn{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px #0000001a}.btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:#667eea;color:#fff}.btn-primary:hover:not(:disabled){background:#5568d3}.btn-success{background:#4caf50;color:#fff}.btn-success:hover:not(:disabled){background:#45a049}.btn-danger{background:#f44336;color:#fff}.btn-danger:hover:not(:disabled){background:#da190b}.btn-secondary{background:#9e9e9e;color:#fff}.btn-secondary:hover:not(:disabled){background:#757575}.messages-container{height:400px;overflow-y:auto;display:flex;flex-direction:column;gap:1rem;padding:1rem;background:#fafafa;border-radius:8px;border:1px solid #eee}.empty-state{text-align:center;color:#999;padding:2rem;font-style:italic}.message{padding:1rem;border-radius:8px;animation:slideIn .3s ease}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{background:#e3f2fd;border-left:4px solid #667eea;align-self:flex-end;max-width:80%}.message.assistant{background:#f3e5f5;border-left:4px solid #764ba2;align-self:flex-start;max-width:80%}.message-header{font-weight:600;color:#555;margin-bottom:.5rem;font-size:.9rem}.message-text{color:#333;line-height:1.5;word-wrap:break-word}footer{background:#0003;color:#fff;text-align:center;padding:1.5rem;font-size:.9rem}@media(max-width:600px){header h1{font-size:1.8rem}main{padding:1rem}section{padding:1rem}.status-items{grid-template-columns:1fr}.message.user,.message.assistant{max-width:95%}.button-group{grid-template-columns:1fr}}