@media (max-width: 767px) {

  .video-gallery-section {
    padding: 0;
  }

  .video-container {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    height: calc(100vw * 9 / 16);
  }

  .desktop-view {
    display: none;
  }

  .mobile-view {
    display: block;
    position: relative;
    width: 94vw;
    height: 225%;
    overflow: hidden;
  }

  .slider-track {
    display: flex;
    width: 100%;
    height: 100%;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
  }

  .slide {
    flex: 0 0 100%;
    width: 100vw;
    height: 100%;
    scroll-snap-align: start;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #000;
  }

  .slide video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.6);
    color: #fff;
    border: none;
    padding: 10px 14px;
    font-size: 20px;
    z-index: 10;
  }

  .nav-left { left: 10px; }
  .nav-right { right: 10px; }
}