#firstSection {
  background-color: #333;
  min-height: calc(100vh - 250px); /* 100vh - height of header */
  display: flex;
  justify-content: center;
}

form {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 20px;
  width: 700px;
  max-width: 100%;
  padding: 20px;
}

label {
  display: block;
  margin-bottom: 10px;
  font-weight: bold;
  color: #fff;
}

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: 10px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
  border-radius: 4px;
  resize: none;
  background-color: rgba(51, 51, 51, 0.8);
  color: #fff;
  font-size: 15px;
}

textarea {
  height: 300px;
}

input[type="submit"] {
  background-color: #4caf50;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

input[type="submit"]:hover {
  background-color: #3e8e41;
}

/* 
.hamburger {
  display: none;
} */

/* @media (max-width: 1000px) {
  nav {
    display: none;
  }

  main {
    padding-top: 50px;
  }

  header {
    height: 50px;
  }

  .hamburger {
    display: inline;
  }
} */