* {
  box-sizing: border-box;
}
footer {
  font-family: 'Montserrat', sans-serif;
  background-color: #d9d9d9;
  padding: 8vw;
  display: flex;
  flex-flow: row wrap;
  align-items: center;
  justify-content: space-between;
  margin-top: 8vw;
}
footer p {
  font-size: 0.8rem;
}
.fa-envelope,
.fa-whatsapp {
  font-size: 1rem;
  color: #575757;
  padding-left: 4.5vw;
}
.modal {
  display: none;
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgb(0, 0, 0);
  background-color: rgba(0, 0, 0, 0.4);
}

.modal_content {
  display: flex;
  flex-flow: column wrap;
  align-items: center;
  justify-content: space-between;
  background-color: white;
  margin: 50% auto;
  padding: 10vw;
  border: 1px solid #707070;
  border-radius: 20px;
  width: 80%;
}
.modal_content h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.5rem;
  font-weight: 500;
  text-align: center;
  margin-bottom: 2vw;
}
.modal_content a {
  display: inline-block;
  width: 95%;
  font-family: 'Montserrat', sans-serif;
  text-align: center;
  background-color: #37d187;
  color: white;
  font-size: 1em;
  padding: 4vw;
  margin-top: 8vw;
  border-radius: 20px;
}

@media screen and (min-width: 769px) {
  footer {
    padding: 2vw;
    margin-top: 6.25vw;
    max-width: 1920px;
  }
  footer p {
    font-size: 0.65rem;
  }
  .fa-envelope,
  .fa-whatsapp {
    font-size: 0.8rem;
    padding-left: 1.04vw;
  }
  .modal_content {
    margin: 15% auto;
    padding: 3.6vw;
    width: 28%;
    border-radius: 30px;
  }
  .modal_content a {
    font-size: 0.9rem;
    padding: 1.5vw;
    margin-top: 1.5vw;
    border-radius: 30px;
  }
}