.container {
  text-align: center;
}

.h2 {
  font-size: 28px;
  margin-bottom: 25px;
  position: relative;
}

.h2::after {
  content: "";
  display: block;
  width: 50%;
  height: 4px;
  margin: 8px auto 0;
  background: #3b82f6;
  border-radius: 4px;
}


.video-box {
  background: black;
  border-radius: 16px;
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.1);
  padding: 16px;
  overflow: hidden;
}

video {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
}