*{margin:0;padding:0;box-sizing:border-box;font-family:Roboto,sans-serif}body{min-height:100vh;display:flex;justify-content:center;align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);color:#333}.fundo{position:fixed;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:-1;opacity:.1}main{width:400px;max-width:95%;background:#fff;border-radius:20px;padding:25px;box-shadow:0 15px 30px #0000004d;text-align:center}h1{font-size:24px;margin-bottom:25px;color:#764ba2}label{display:block;margin-bottom:15px;font-weight:500}select,input{width:100%;padding:12px;margin-top:5px;border-radius:12px;border:1px solid #ccc;font-size:16px;transition:all .3s}select:focus,input:focus{outline:none;border-color:#667eea;box-shadow:0 0 8px #667eea80}.convert-button{width:100%;padding:12px;margin-top:15px;background:#667eea;color:#fff;border:none;border-radius:12px;cursor:pointer;font-weight:700;transition:all .3s}.convert-button:hover{background:#764ba2}.convert-button:active{transform:scale(.97)}section{display:flex;justify-content:space-between;align-items:center;margin-top:25px;flex-wrap:wrap;gap:15px}.currency-box{flex:1 1 45%;border-radius:20px;padding:15px;text-align:center;box-shadow:0 8px 20px #00000026;transition:all .3s;position:relative}.currency-box:hover{transform:translateY(-5px);box-shadow:0 12px 25px #00000040}.from-brl,.to-brl{background:linear-gradient(135deg,#ff9a9e,#fad0c4)}.from-usd,.to-usd{background:linear-gradient(135deg,#a1c4fd,#c2e9fb)}.from-eur,.to-eur{background:linear-gradient(135deg,#fbc2eb,#a6c1ee)}.from-gbp,.to-gbp{background:linear-gradient(135deg,#fccb90,#d57eeb)}.currency-box img{width:70px;height:70px;margin-bottom:8px;transition:transform .3s}.currency-box img:hover{transform:scale(1.15)}.currency{font-weight:500;margin-bottom:5px;font-size:14px;color:#fff}.currency-value,.currency-value-to-convert{font-size:20px;font-weight:700;display:inline-block;transition:all .3s}.currency-update{animation:pulseValue .4s ease-out}@keyframes pulseValue{0%{transform:scale(1);color:#fff}50%{transform:scale(1.2);color:gold}to{transform:scale(1);color:#fff}}@keyframes jump{0%{transform:translateY(0)}25%{transform:translateY(-10px)}50%{transform:translateY(0)}75%{transform:translateY(-5px)}to{transform:translateY(0)}}.icon-jump{animation:jump .5s ease-out}.arrow-img{width:40px;cursor:pointer;margin-top:15px;transition:transform .3s}.arrow-img:hover{transform:rotate(180deg)}@media screen and (max-width:480px){section{flex-direction:column;gap:20px}.currency-box{width:100%}}