body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #ffffff;
  color: #222;
  text-align: center;
}

.hero {
  padding: 60px 20px;
  background: #1f2394;
  color: white;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 10px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

.btn {
  background: white;
  color: #1f2394;
  padding: 15px 25px;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
}

.features {
  padding: 50px 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
  max-width: 700px;
  margin: auto;
}

.card {
  padding: 20px;
  background: #f5f5f5;
  border-radius: 10px;
}

.install {
  padding: 50px 20px;
  background: #fafafa;
}

.install ol {
  max-width: 400px;
  margin: auto;
  text-align: left;
}

.note {
  margin-top: 15px;
  font-size: 0.9rem;
  color: #555;
}

footer {
  padding: 20px;
  font-size: 0.9rem;
  background: #eee;
}