* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  background: #f2f4f8;
}

.header {
  background: #1e3c72;
  color: white;
  text-align: center;
  padding: 15px;
}

.main {
  padding: 10px;
}

/* PDF */
iframe {
  width: 100%;
  height: 70vh;
  border: 1px solid #ccc;
  border-radius: 8px;
  background: white;
}

/* Download button */
.download {
  display: block;
  margin: 15px auto;
  text-align: center;
  background: #ff9800;
  color: white;
  padding: 12px 18px;
  text-decoration: none;
  font-weight: bold;
  border-radius: 6px;
}

.download:hover {
  background: #e68900;
}

/* Mobile fix */
@media (max-width: 600px) {
  iframe {
    height: 60vh;
  }
}