/* ==========================================================================
   RESPONSIVE — PC (≥1101) / iPad (768–1100) / มือถือ (≤767)
   ========================================================================== */

/* ---------- แล็ปท็อปจอเล็ก ---------- */
@media (max-width: 1200px) {
  .nav-menu { gap: 0; }
  .nav-menu a { padding: 10px 10px; font-size: 13.5px; }
}

/* ---------- iPad แนวนอน / จอเล็ก: พับเมนูเป็นแฮมเบอร์เกอร์ ---------- */
@media (max-width: 1100px) {
  .nav-menu { display: none; }
  .nav-apply { display: none; }          /* ปุ่มสมัครเรียนย้ายไปในเมนูมือถือ */
  .nav-cta { gap: 8px; }
  .hamburger { display: flex; }
  .testi-card { flex: 0 0 calc(50% - 16px); }
}

/* ---------- iPad แนวตั้ง ---------- */
@media (max-width: 1024px) {
  .features-grid, .stats-grid, .fac-grid { grid-template-columns: repeat(2, 1fr); }
  .teachers-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .gallery-masonry { columns: 3; }
  .programs-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: clamp(30px, 5.4vw, 46px); }
  .about-grid, .safety-grid { gap: 44px; }
}

/* ---------- มือถือ ---------- */
@media (max-width: 768px) {
  .topbar-right { display: none; }
  .tb-addr { display: none; }
  .topbar { font-size: 12px; }
  .topbar-left { gap: 14px; }

  .container { padding: 0 16px; }
  .nav-inner { padding: 10px 14px; gap: 10px; }
  .nav-logo img { height: 44px; width: 44px; }
  .nav-logo-text { min-width: 0; }
  .nav-logo-text .logo-main { font-size: 11.5px; white-space: normal; line-height: 1.25; }
  .nav-logo-text .logo-sub { display: none; }

  .hero-grid, .about-grid, .safety-grid, .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero-bg-shape { width: 90vw; top: -20px; right: -50px; opacity: .35; }
  .hero-deco { display: none; }
  .hero-content { padding-bottom: 0; }
  .hero-img-wrap { min-height: 260px; overflow: hidden; }
  .hero-card-float { display: none; }
  .admission-badge { display: none; }
  .hero-stats { gap: 20px; }
  .hero-btns .btn { flex: 1 1 auto; justify-content: center; }

  .programs-grid { grid-template-columns: 1fr 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .faq-columns { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }

  .gallery-masonry { columns: 2; column-gap: 10px; }
  .gallery-masonry .g-item { margin-bottom: 10px; }
  .filter-bar { overflow-x: auto; flex-wrap: nowrap; justify-content: flex-start;
                -webkit-overflow-scrolling: touch; scrollbar-width: none; padding-bottom: 4px; }
  .filter-bar::-webkit-scrollbar { display: none; }
  .f-btn { flex: 0 0 auto; }

  .testi-card { flex: 0 0 calc(100% - 16px); }
  .testi-wrap { padding: 0 36px; }

  .form-row { grid-template-columns: 1fr; }
  .about-imgs { min-height: 300px; overflow: hidden; }
  .about-img-side { right: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }

  .team-sub { margin: 32px 0 16px; font-size: 15.5px; }
  .news-header { flex-direction: column; align-items: flex-start; gap: 18px; }

  section { overflow-x: hidden; }
  .floats { bottom: 78px; }
}

/* ---------- มือถือจอเล็ก ---------- */
@media (max-width: 480px) {
  .programs-grid, .features-grid { grid-template-columns: 1fr; }
  .teachers-grid { grid-template-columns: 1fr 1fr; }
  .fac-grid { grid-template-columns: 1fr 1fr; }
  .hero-img-main { width: 90%; }
  .hero-title { font-size: 28px; }
  .hero-badge { font-size: 11.5px; padding: 7px 14px; }
  .section-title { font-size: 24px; }
  .contact-form { padding: 24px 20px; }
  .lb-cap { font-size: 12.5px; bottom: 14px; }
  .mm-tools .btn { flex: 1 1 100%; justify-content: center; }
}

/* ---------- จอเล็กมาก ---------- */
@media (max-width: 360px) {
  .teachers-grid, .fac-grid { grid-template-columns: 1fr; }
  .gallery-masonry { columns: 1; }
}

/* ---------- พิมพ์ / ผู้ใช้ปิดแอนิเมชัน ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important;
                           transition-duration: .001ms !important; scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}

@media print {
  .topbar, .nav, .floats, .back-top, .lb, .filter-bar, .cta, .contact-form { display: none !important; }
  body { background: #fff; color: #000; }
}