.promo-media { width: 100%; padding: 0; background: var(--white); }
.promo-slider { position: relative; width: 100%; overflow: hidden; }
.promo-slider-track { display: flex; width: 100%; overflow-x: auto; overflow-y: hidden; scroll-snap-type: x mandatory; scroll-behavior: smooth; scrollbar-width: none; }
.promo-slider-track::-webkit-scrollbar { display: none; }
.promo-slider-track:focus-visible { outline: 3px solid var(--gold); outline-offset: -3px; }
.promo-slide { flex: 0 0 100%; width: 100%; height: min(40.625vw, 600px); scroll-snap-align: start; background: var(--blue-soft); }
.promo-media-image { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.promo-slider-arrow { position: absolute; z-index: 1; top: 50%; display: grid; place-items: center; width: 44px; height: 44px; padding: 0; transform: translateY(-50%); border: 1px solid rgba(255,255,255,.7); border-radius: 50%; background: rgba(17,29,35,.55); color: #fff; font: 32px/1 system-ui,sans-serif; cursor: pointer; }
.promo-slider-arrow:hover, .promo-slider-arrow:focus-visible { background: var(--blue-dark); }
.promo-slider-prev { left: 20px; }
.promo-slider-next { right: 20px; }
.promo-slider-dots { position: absolute; z-index: 1; right: 0; bottom: 16px; left: 0; display: flex; justify-content: center; gap: 9px; }
.promo-slider-dots button { width: 10px; height: 10px; padding: 0; border: 1px solid #fff; border-radius: 50%; background: rgba(17,29,35,.45); cursor: pointer; }
.promo-slider-dots button[aria-current="true"] { width: 27px; border-radius: 10px; background: var(--gold); }
#feedback, #form-dang-ky { scroll-margin-top: 100px; }
.media-gallery-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 28px; }
.media-gallery-item { overflow: hidden; margin: 0; border: 1px solid var(--line); border-radius: 16px; background: var(--white); box-shadow: 0 10px 24px rgba(16, 45, 58, .08); }
.media-gallery-item .media-lightbox-trigger { aspect-ratio: 4 / 3; overflow: hidden; }
.media-gallery-item img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .25s ease; }
.media-gallery-item:hover img { transform: scale(1.035); }
.media-gallery-item figcaption { padding: 13px 15px 15px; color: var(--ink); font-size: .88rem; font-weight: 700; }

@media (max-width: 767px) {
  .promo-slider-arrow { width: 34px; height: 34px; font-size: 25px; }
  .promo-slider-prev { left: 10px; }
  .promo-slider-next { right: 10px; }
  .promo-slider-dots { bottom: 10px; }
  .media-gallery-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .promo-slider-track { scroll-behavior: auto; }
  .media-gallery-item img { transition: none; }
}