header {
  position: relative;
  background-color: black;
  height: 100%;
  min-height: 25rem;
  width: 100%;
  overflow: hidden;
}

header video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  z-index: 0;
  -ms-transform: translateX(-50%) translateY(-50%);
  -moz-transform: translateX(-50%) translateY(-50%);
  -webkit-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
}

header .container {
  position: relative;
  z-index: 2;
}

header .overlay {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
 /* background-color: rgb(166, 166, 166);*/
   background-color:rgb(0 32 61);
  opacity: 0.5;
  z-index: 1;
}

  .btn-login {
            background: linear-gradient(333deg, #01000c 0%, #2575f9 100%);
    border: none;
    padding: 10px 20px;
    border-radius: 0px;
   /* font-weight: 600;*/
    transition: all 0.3s ease;
        }