body {
     font-family: Arial, sans-serif;
     margin: 0;
     padding: 0;
     line-height: 1.6;
     background-color: #f4f6f8;
     color: #333;
 }

 nav {
     width: 100%;
     background-color: #000000;
     padding: 10px 0;
     box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
 }

 nav ul {
     list-style: none;
     margin: 0;
     padding: 0;
     display: flex;
     justify-content: center;
 }

 nav ul li {
     margin: 0 15px;
 }

 nav ul li a {
     color: #61dafb;
     font-weight: bold;
 }

 nav ul li a:hover {
     color: #fff;
 }

 header {
     background-color: #20232a;
     color: #61dafb;
     text-align: center;
     padding: 20px 0;
 }

 main {
     display: flex;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     padding: 40px;
 }

 section {
     margin: 10px;
     display: flex;
     align-items: center;
     max-width: 1100px;
     background: #fff;
     padding: 20px;
     border-radius: 10px;
     box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
 }

 section img {
     width: 200px;
     margin-right: 20px;
 }

 section img:hover {
     width: 205px;
 }

 a {
     color: #61dafb;
     text-decoration: none;
     font-weight: bold;
 }

 a:hover {
     text-decoration: underline;
 }

 button {
     background-color: #61dafb;
     color: #20232a;
     border: none;
     padding: 10px 20px;
     border-radius: 5px;
     cursor: pointer;
     font-size: 16px;
     margin-top: 15px;
 }

 button:hover {
     background-color: #4dbcd7;
 }

 #vantagensBox {
     background-color: #9dd6f0;
     padding: 15px;
     margin-top: 15px;
     border-radius: 8px;
     border: 1px solid #61dafb;
     display: none;
 }

 #vantagensBox ul {
     margin: 0;
     padding-left: 20px;
 }

 #btnTopo {
     position: fixed;
     bottom: 30px;
     right: 30px;
     display: none;
     background-color: #20232a;
     color: white;
     border: none;
     padding: 12px 16px;
     border-radius: 50%;
     font-size: 24px;
     cursor: pointer;
     box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
     transition: background-color 0.3s ease;
     z-index: 1000;
 }

 #btnTopo:hover {
     background-color: #61dafb;
 }


 footer {
     text-align: center;
     padding: 15px;
     background-color: #20232a;
     color: #fff;
     margin-top: 30px;
 }

 html {
     scroll-behavior: smooth;
 }