body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin: 0; padding: 0;
  background: #f8fafc;
  color: #1e293b;
}
header {
  background: #0f172a;
  color: white;
  text-align: center;
  padding: 2rem 1rem;
}
header h1 { margin: 0; font-size: 2.2rem; }
main { max-width: 800px; margin: 2rem auto; padding: 0 1rem; }
.form-section {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
input, textarea {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 16px;
}
button {
  background: #0f172a;
  color: white;
  border: none;
  padding: 14px;
  width: 100%;
  border-radius: 8px;
  font-size: 18px;
  cursor: pointer;
}
button:hover { background: #1e293b; }
#status { text-align: center; margin-top: 10px; color: green; }
.features {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  margin-top: 2rem;
  font-weight: 500;
}
footer {
  text-align: center;
  padding: 2rem 1rem;
  color: #64748b;
  border-top: 1px solid #e2e8f0;
}