body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #fdfdfd;
  color: #333;
}

header {
  background-color: #004d40;
  color: white;
  padding: 20px 0;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 2.5em;
}

nav {
  background-color: #00796b;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

nav a {
  color: white;
  text-decoration: none;
  margin: 10px 15px;
  font-weight: bold;
}

nav a:hover,
nav a.active {
  text-decoration: underline;
}

/* MAIN CONTENT */
main {
  max-width: 1000px;
  margin: 20px auto;
  padding: 0 20px;
}

section {
  margin-bottom: 40px;
}

img {
  max-width: 100%;
  border-radius: 10px;
  display: block;
}

.caption {
  font-size: 0.9em;
  color: #555;
  text-align: center;
  margin-top: 5px;
}

ul {
  list-style-type: disc;
  padding-left: 20px;
}

footer {
  background-color: #004d40;
  color: white;
  text-align: center;
  padding: 15px 0;
  margin-top: 40px;
}


form {
  background-color: #f5f5f5;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  margin-top: 20px;
}

form input,
form textarea {
  width: 100%;
  font-size: 1em;
}

form button {
  width: 160px;
  align-self: flex-start;
  font-weight: bold;
}

section h2 {
  color: #004d40;
  margin-top: 30px;
}
/* RESPONSIVE DESIGN */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
  }
}