body {
  font-family: system-ui, -apple-system, sans-serif;
  margin: 0;
  padding: 0;
  background: #f8f9fa;
  color: #222;
  line-height: 1.5;
}
header, footer {
  background: #1a365d;
  color: white;
  padding: 1rem 2rem;
  text-align: center;
}
main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}
.home { text-align: center; }
.hero-image { max-width: 100%; height: auto; border-radius: 8px; }
.cta {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background: #2b6cb0;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
}
.downloads { display: flex; flex-direction: column; gap: 1rem; }
.download-item {
  background: white;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: #38a169;
  color: white;
  text-decoration: none;
  border-radius: 4px;
}
.card {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
input, textarea {
  display: block;
  width: 100%;
  margin: 0.5rem 0;
  padding: 0.5rem;
  box-sizing: border-box;
}
button {
  padding: 0.5rem 1rem;
  background: #2b6cb0;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
.error { color: #c53030; }
.item-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid #eee;
}