body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f4f6f8;
  margin: 0;
  padding: 0;
  color: #222;
}

.container {
  max-width: 850px;
  margin: 40px auto;
  background: #ffffff;
  padding: 40px 30px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  border-radius: 10px;
}

header {
  border-bottom: 2px solid #004080;
  margin-bottom: 30px;
  padding-bottom: 10px;
  text-align: center;
}

header h1 {
  margin-bottom: 0;
  font-size: 2.2rem;
  color: #004080;
}

header p {
  margin-top: 8px;
  font-size: 0.95rem;
}

a {
  color: #0073e6;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

section {
  margin-bottom: 30px;
}

h2 {
  font-size: 1.4rem;
  color: #004080;
  border-bottom: 1px solid #ddd;
  padding-bottom: 5px;
  margin-bottom: 15px;
}

ul {
  padding-left: 20px;
  line-height: 1.6;
}

footer {
  text-align: center;
  font-size: 0.9rem;
  color: #777;
  margin-top: 40px;
}

.download-btn {
  display: inline-block;
  margin-top: 10px;
  background-color: #004080;
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
}

.download-btn:hover {
  background-color: #0060c0;
}