body {
  margin: 0;
  padding: 0;
  font-family: 'Noto Sans Thai', sans-serif;
  background: linear-gradient(to bottom, #ffffff, #e6f0ff);
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  padding: 1rem;
  text-align: center;
}

.logo {
  height: 50px;
  margin-bottom: 0.5rem;
}

.main-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #003366;
}
.head-title {
  font-size: 1rem;
  font-weight: bold;
  color: #003366;
}


.sub-title {
  font-size: 0.7rem;
  color: #555;
}

.ar-section {
  width: 95%;
  max-width: 600px;
  margin: 1rem auto;
  padding: 1rem;
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  text-align: center;
}

model-viewer {
  width: 100%;
  height: 360px;
  border-radius: 12px;
  background: #f9f9f9;
}

.label {
  margin: 0.5rem 0;
  font-size: 1.2rem;
  color: #333;
}

.ar-button {
  margin-top: 0.8rem;
  padding: 10px 24px;
  font-size: 16px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

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

/* ✅ Landscape adjustments */
@media screen and (orientation: landscape) {
  .ar-section {
    width: 90%;
    padding: 0.8rem;
  }

  model-viewer {
    aspect-ratio: 16 / 6;
  }

  .label {
    font-size: 1rem;
  }

  .ar-button {
    font-size: 14px;
    padding: 8px 16px;
  }
}

footer {
  text-align: center;
  padding: 1.2rem 1rem 2rem;
  font-size: 0.9rem;
  color: #333;
}

.footer-link {
  margin-top: 0.3rem;
}

.footer-link a {
  color: #007bff;
  text-decoration: none;
}

.footer-link a:hover {
  text-decoration: underline;
}