/* General Styles */
body {
  background-color: #f5f5f5;
  color: #333;
  margin: 0;
  padding: 0;
  font-family: 'Arial', sans-serif;
}

header {
  background-color: #004d40;
  color: #fff;
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

nav {
  background-color: #00796b;
  color: #fff;
  padding: 10px;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
}

nav ul li {
  margin: 0 15px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

nav ul li a:hover {
  text-decoration: underline;
}

main {
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

iframe {
  border: none;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

footer {
  background-color: #004d40;
  color: #fff;
  padding: 10px;
  text-align: center;
  position: fixed;
  bottom: 0;
  width: 100%;
}

/* Button Styles */
.button {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  margin: 10px;
  background-color: #00796b;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.button img {
  width: 24px;
  height: 24px;
  margin-right: 10px;
}

.button:hover {
  background-color: #004d40;
}

/* Responsive Styles */
@media screen and (max-width: 600px) {
  header {
      padding: 15px;
      font-size: 18px;
  }

  nav {
      padding: 10px;
  }

  nav ul {
      flex-direction: column;
  }

  nav ul li {
      margin-bottom: 10px;
  }
}