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

/* Layout */
body {
  background-color: #f3f4f6;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.container {
  background: #ffffff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  max-width: 420px;
  width: 100%;
}

/* Title */
h1 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.75rem;
  color: #1f2937;
}

/* Form styling */
<style>
  body {
    font-family: Arial, sans-serif;
    padding: 2rem;
    background-color: #000; /* Ubah jadi hitam */
    color: #fff;
  }

  .container {
    max-width: 500px;
    margin: auto;
    padding: 2rem;
    background-color: #1a1a1a; /* abu gelap */
    border-radius: 12px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.05);
    text-align: center;
  }

  .card-image {
    display: block;
    margin: 0 auto 1rem auto;
    max-width: 100px;
    height: auto;
  }

  h1 {
    margin-bottom: 1rem;
    color: #fff;
  }

  label {
    display: block;
    margin: 1rem 0 0.5rem;
    text-align: left;
    color: #ccc;
  }

  input, textarea {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 1rem;
    border-radius: 6px;
    border: 1px solid #444;
    background-color: #2a2a2a;
    color: #fff;
    font-size: 1rem;
  }

  button {
    width: 100%;
    padding: 0.5rem;
    border-radius: 6px;
    border: none;
    font-size: 1rem;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
  }

  button:hover {
    background-color: #45a049;
  }

  textarea {
    height: 150px;
    resize: vertical;
  }
</style>

/* Buttons */
button {
  background-color: #2563eb;
  color: white;
  padding: 0.65rem;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s ease;
  margin-top: 0.75rem;
}

button:hover {
  background-color: #1d4ed8;
}

.result-label {
  display: block;
  font-weight: 600;
  margin-top: 0.5rem;
  color: #374151;
}
.card-image {
  display: block;
  margin: 0 auto 1rem auto;
  max-width: 100px;
  height: auto;
}