: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:Poppins,sans-serif;background:linear-gradient(135deg,#e8f0f8,#cfd9e7);color:#1b263b;display:flex;justify-content:center;align-items:center;min-height:100vh;margin:0;padding:20px}.container{background:#fff;padding:30px;border-radius:20px;max-width:400px;width:100%;text-align:center;box-shadow:0 4px 20px #0000001a}h1{margin-bottom:20px;color:#0077b6;font-size:1.8rem}.card{background:#f4f7fb;padding:20px;border-radius:15px;box-shadow:0 2px 8px #0000001a}label{font-size:14px;color:#333;display:block;margin-bottom:5px;text-align:left}input{width:100%;padding:10px;border-radius:10px;border:1px solid #ccd6e3;background:#fff;color:#333;font-size:16px;margin-bottom:15px}input:focus{outline:2px solid #00b4d8}.moedas{display:flex;justify-content:space-between;align-items:center;gap:10px}.select-group{flex:1}.select-wrapper{display:flex;align-items:center;background:#fff;border-radius:10px;border:1px solid #ccd6e3;padding:5px 10px}.flag{font-size:20px;margin-right:8px}select{flex:1;background:transparent;border:none;color:#333;font-size:15px;outline:none;cursor:pointer}.botao-inverter{background:#00b4d8;border:none;color:#fff;font-size:20px;padding:10px;border-radius:50%;cursor:pointer;transition:.2s}.botao-inverter:hover{background:#0077b6;transform:rotate(180deg)}.resultado{margin-top:20px;font-size:17px;color:#0077b6;font-weight:500}footer{margin-top:25px;font-size:14px;color:#555}footer strong{color:#0077b6}@media(max-width:480px){.container{padding:20px}h1{font-size:1.4rem}.moedas{flex-direction:column}.botao-inverter{margin:10px 0}}