: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;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}}.App{text-align:center;display:flex;flex-direction:column;height:100vh;background-color:#f0f2f5}.start-screen{display:flex;justify-content:center;align-items:center;height:100%}.start-button{padding:20px 40px;font-size:24px;border-radius:30px;border:none;background-color:#007bff;color:#fff;cursor:pointer;transition:background-color .3s}.start-button:hover{background-color:#0056b3}.chat-window{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:15px}.message{display:flex;flex-direction:column;max-width:70%;padding:10px 15px;border-radius:20px;position:relative}.message.user{background-color:#007bff;color:#fff;align-self:flex-end;border-bottom-right-radius:5px}.message.bot{background-color:#e9e9eb;color:#333;align-self:flex-start;border-bottom-left-radius:5px}.message p{margin:0;white-space:pre-wrap}.timestamp{font-size:.75em;color:#999;margin-top:5px;align-self:flex-end}.message.user .timestamp{color:#f0f0f0}footer{padding:10px;background-color:#fff;border-top:1px solid #ddd}