body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4;
  color: #333;
}
header {
  background: #3cc5cc;
  color: white;
  padding: 1rem;
  text-align: center;
}
nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  background: #2b9ca3;
  padding: 0.5rem;
}
nav a {
  margin: 0.5rem;
  color: white;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  text-decoration: underline;
}
section {
  padding: 2rem;
  background: white;
  margin: 1rem auto;
  max-width: 900px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
h1, h2 {
  color: #3cc5cc;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #3cc5cc;
  color: white;
  margin-top: 2rem;
}
.project, .member {
  margin-bottom: 2rem;
}
img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
}
form label {
  display: block;
  margin: 0.5rem 0;
}
form input, form textarea, form button, form select {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  font-size: 1rem;
}
button {
  background: #3cc5cc;
  color: white;
  border: none;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.3s;
}
button:hover {
  background: #2b9ca3;
}
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    align-items: center;
  }
  section {
    padding: 1rem;
    margin: 1rem;
  }
  h1 {
    font-size: 1.5rem;
  }
}