: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}}body{font-family:Arial,sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:#f4f4f9;margin:0}.container{background-color:#fff;padding:30px;border-radius:8px;box-shadow:0 4px 8px #0000001a;width:90%;max-width:450px}h1{color:#333;text-align:center;margin-bottom:20px;font-size:1.5em}.exchange-rate{text-align:center;margin-bottom:25px;padding:10px;border:1px solid #007bff;border-radius:4px;background-color:#e6f0ff}.exchange-rate p{margin:5px 0;font-size:1.1em;color:#007bff;font-weight:700}.exchange-rate .api-success{color:#28a745;font-weight:700;display:block;margin-top:5px}.exchange-rate .api-fallback{color:#dc3545;font-weight:700;display:block;margin-top:5px}.form-group{margin-bottom:15px}label{display:block;margin-bottom:5px;font-weight:700;color:#555}input[type=number],select{width:100%;padding:10px;margin-bottom:10px;border:1px solid #ccc;border-radius:4px;box-sizing:border-box;font-size:1em}button{width:100%;padding:12px;background-color:#28a745;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:1.1em;transition:background-color .3s}button:hover{background-color:#1e7e34}#risultato{margin-top:20px;padding:15px;border:1px solid #333;border-radius:4px;background-color:#f0f0f0;font-weight:700;text-align:center;font-size:1.2em;color:#333}