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

.whatsapp-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: #25d366;
  color: white;
  padding: 15px 20px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.whatsapp-btn:hover {
  transform: scale(1.1);
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: white;
}

.logo {
  margin: 10px;
  margin-left: 20px;
  background-color: white;
}

nav a {
  color: #05599e;
  margin-left: 20px;
  text-decoration: none;
  font-size: 20px;
  font-weight: bold;
}

.header nav {
  margin-right: 30px;
}

.banner {
  width: 100%;
  height: 600px;
  overflow: hidden;
  margin-top: 120px;
}

.banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}