.video-slide {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

/* Swiper height */
.swiper,
.swiper-wrapper,
.swiper-slide {
  height: 100vh !important;
}

/* REAL FIX: Overscale video */
.video-slide iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 177.77vh;   /* 16:9 math */
  height: 100vh;
  min-width: 100vw;
  min-height: 56.25vw;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

/* Overlay */
.slider-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 1;
}

/* Content */
.video-slide .container {
  position: relative;
  z-index: 2;
}

/* Global fix */
html, body {
  margin: 0;
  height: 100%;
  overflow-x: hidden;
}