body {
  font-family: Arial, sans-serif;
  margin: 0;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
} 

header {
  padding: 24px;
  background: #1f2937;
  color: white;
  position: sticky;
  top: 0px;
  z-index: 1000;
}

header h1 {
  margin: 0;
  font-size: 28px;
}

header p {
  margin: 5px;
}

nav {
  background: #111827;
  padding: 10px 25px;
  position: sticky;
  top: 129px;
  z-index: 999;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

nav li {
  display: inline-block;
  margin-right: 15px;
}

nav a {
  color: white;
  text-decoration: none;
  padding: 10px;
  border-radius: 6px;
}

nav a:hover {
  background: rgba(255,255,255,0.15);
}

main {
  max-width: 900px;
  margin: 10px ;
  padding: 10px;
  flex: 1;
}

main h2 {
	padding: 5px;
}


footer {
  text-align: center;
  background: #1f2937;
  color: white;
}

footer a {
  text-decoration: none;
  margin: 20px;
  color: white;
}

form {
  max-width: 500px;
  margin: auto;
}

form label {
  display: block;
  margin-top: 10px;
}

form input, form textarea {
  width: 100%;
  padding: 5px;
  margin-top: 5px;
}