.footer {
  background-color: #333;
  color: #fff;
  padding: 50px 0;
}

.whatsapp-button {
  position: fixed;
  bottom: 20px;
  left: 5%;
  width: 90%;
  background-color: #25D366;
  color: #fff;
  padding: 15px;
  text-align: center;
  border-radius: 10px;
  text-decoration: none;
  font-size: 18px;
  font-weight: bold;
  box-shadow: 0px 0px 10px rgba(0,0,0,0.2);
}

.whatsapp-button:hover {
  background-color: #1DA335;
}

.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-segment {
  flex-basis: 30%;
  margin: 20px;
}

.footer-segment h4 {
  margin-top: 0;
}

.footer-segment ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-segment ul li {
  margin-bottom: 10px;
}

.footer-segment ul li a {
  color: #fff;
  text-decoration: none;
}

.social-icons {
  margin-top: 20px;
}

.social-icons a {
  margin-right: 10px;
  color: #fff;
  text-decoration: none;
}

.social-icons a:hover {
  color: #ccc;
}

.social-icons img {
  width: 20px;
  height: 20px;
  margin-right: 10px;
}

.copyright {
  background-color: #222;
  color: #fff;
  padding: 10px;
  text-align: center;
  clear: both;
}

@media (max-width: 768px) {
  .footer-segment {
    flex-basis: 100%;
    margin: 20px 0;
  }
}

.footer-segment input[type="email"] {
  padding: 10px;
  border: none;
  border-radius: 5px 0 0 5px;
  width: 70%;
}

.footer-segment button[type="submit"] {
  padding: 10px;
  border: none;
  border-radius: 0 5px 5px 0;
  background-color: #555;
  color: #fff;
  cursor: pointer;
}