* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #000; /* Background hitam seluruh halaman */
  color: #fff;
  line-height: 1.6;
}

.container {
  max-width: 700px;
  margin: 0 auto;
  padding: 20px;
  text-align: center;
}

h1 {
  font-size: 26px;
  color: #fff;
  margin-bottom: 10px;
}

.description {
  font-size: 18px;
  color: #ccc;
  margin-bottom: 30px;
}

.step {
  margin-bottom: 40px;
}

.step img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 10px;
  box-shadow: 0 0 10px rgba(255,255,255,0.1);
}

.step p {
  background-color: #111;
  color: #fff;
  font-size: 17px;
  padding: 12px 16px;
  border-radius: 6px;
  margin: 0 auto;
  max-width: 90%;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  background-color: #007bff;
  color: white;
  text-decoration: none;
  font-weight: bold;
  border-radius: 6px;
  margin-top: 30px;
  transition: background 0.3s ease;
}

.btn:hover {
  background-color: #0056b3;
}

/* Responsive tweaks */
@media (max-width: 480px) {
  h1 {
    font-size: 22px;
  }

  .description {
    font-size: 15px;
  }

  .step p {
    font-size: 16px;
    padding: 10px 12px;
  }

  .btn {
    width: 90%;
    font-size: 16px;
  }
}