body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f9f9f9;
  margin: 0;
  padding: 0;
  color: #333;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  padding-bottom: 20px;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: #555;
  font-size: 1.2rem;
}

.step {
  margin-bottom: 30px;
}

.step h2 {
  font-size: 1.5rem;
  color: #222;
}

.step p {
  font-size: 1rem;
  margin: 10px 0;
}

.step img {
  width: 100%;
  max-width: 600px;
  border: 1px solid #ccc;
  border-radius: 8px;
  display: block;
  margin: 10px auto;
}

.embed {
  text-align: center;
  padding: 20px 0;
}

.video-wrapper iframe {
  width: 100%;
  max-width: 560px;
  height: 315px;
  border: none;
  border-radius: 8px;
}

footer {
  text-align: center;
  padding: 20px 0;
  color: #888;
  font-size: 0.9rem;
}