body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: white;
  color: black;
  margin: 0;
  padding: 0;
  text-align: left;
}

header {
  background-color: whitesmoke;
  padding: 20px;
  font-size: 1.8em;
  text-align: center;
}

main {
  flex: 1;
  max-width: 1200px;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  margin: 20px auto;
  padding: 20px;
}

.containerColunas {
  display: grid;
  grid-template-columns: 30% 65%;
  gap: 20px;
  margin-bottom: 40px;
  justify-content: center;
  align-items: start;
}

.coluna1 {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background-color: Gainsboro;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  text-align: center;
  padding: 20px;
}

.cardCol3 {
  background-color: Gainsboro;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  text-align: center;
  padding: 20px;
}

.card img,
.cardCol3 img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

footer {
  margin-top: auto;
  text-align: center;
  padding: 30px 20px;
  background-color: whitesmoke;
  font-size: 1em;
}

footer a {
  margin-top: auto;
  color: blue;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

@media (max-width: 1024px) {
  .containerColunas {
    grid-template-columns: 1fr;
    gap: 20px;
    justify-items: center;
  }

  .coluna1 {
    gap: 20px;
  }

  .card,
  .cardCol3 {
    width: 100%;
    max-width: 90%;
  }

  footer {
    margin-top: auto;
    padding: 40px 20px;
    font-size: 1.2em;
  }
}

@media (max-width: 768px) {
  .containerColunas {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 15px;
    justify-items: center;
  }

  .card,
  .cardCol3 {
    width: 100%;
    max-width: 90%;
  }

  main {
    padding: 15px;
    flex: 1;
  }

  footer {
    margin-top: auto;
    padding: 50px 20px;
    font-size: 1.4em;
  }
}

@media (max-width: 480px) {
  .containerColunas {
    gap: 20px;
    padding: 0 10px;
  }

  .card,
  .cardCol3 {
    width: 100%;
    max-width: 90%;
  }

  header {
    font-size: 1.5em;
    padding: 15px;
  }

  main {
    flex: 1;
    padding: 10px;
  }

  footer {
    margin-top: auto;
    padding: 60px 20px;
    font-size: 1.6em;
  }
}