body {
  margin: 0;
  font-family: Arial, sans-serif;
}

header {
  background-color: #3498db;
  color: white;
  text-align: center;
  padding: 20px;
}

.container {
  display: flex;
  flex-wrap: wrap;
  padding: 20px;
}

.box {
  flex: 1 1 300px;
  background-color: #ecf0f1;
  margin: 10px;
  padding: 20px;
  box-sizing: border-box;
}

footer {
  background-color: #2c3e50;
  color: white;
  text-align: center;
  padding: 20px;
}

@media (max-width: 600px) {
  header {
    font-size: 16px;
  }

  .box {
    flex: 1 1 100%;
  }
}

body {
  margin: 0;
  padding: 40px;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to right, #e0f7fa, #80deea);
  text-align: center;
}

h1,
h3 {
  color: #0d47a1;
}

.botao {
  display: inline-block;
  background-color: #1e3a8a;
  color: white;
  padding: 12px 25px;
  margin: 10px;
  text-decoration: none;
  border-radius: 30px;
  font-size: 16px;
  font-weight: bold;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.botao:hover {
  background-color: #2563eb;
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}