.video-wrapper {
  position: relative;
  width: 100%;
  max-width: 960px;
  margin: 1rem auto;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.video-wrapper video {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  object-fit: cover;
}

/* Кнопка «Развернуть» */
.fullscreen-btn {
  position: absolute;
  bottom: 10px;
  right: 10px;
  z-index: 10;
  background: rgba(0,0,0,0.6);
  border: none;
  padding: 6px;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.fullscreen-btn:hover {
  background: rgba(0,0,0,0.85);
}
.fullscreen-btn svg {
  display: block;
}