body {
  font-family: 'Open Sans', sans-serif;
  color: #fff;
  position: relative;
  width: 100vw;
  height: 100vh;
  background-color: #000;
  display: grid;
  grid-template-columns: auto;
  grid-template-rows: 1fr auto;
}

body::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background: rgba(49, 71, 89, 0.5);
  z-index: 1;
}

#header {
  position: absolute;
  top: 10%;
  left: 50%;
  width: 100%;
  transform: translateX(-50%);
  z-index: 2;
}

#header h1 {
  font-size: 4vh;
  font-weight: 700;
  color: #fff;
}

#header h2 {
  color: #eee;
  font-size: 2vh;
}

#main {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  position: relative;
  background: url('../img/bg.jpg') top center no-repeat;
  background-attachment: fixed;
  background-size: cover;
}

#main .countdown {
  perspective: 1000px;
  position: absolute;
  bottom: 50%;
  left: 50%;
  transform: translate(-50%, 50%);
}

#main .countdown div {
  text-align: center;
  border: 2px solid rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  margin: 10px 10px;
  width: 10vh;
  padding: 15px 0;
  transform: rotateX(-37deg) scale(1);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  opacity: 0.6;
}

#main .countdown div h3 {
  font-weight: 700;
  font-size: 3vh;
  margin-bottom: 15px;
}

#main .countdown div h4 {
  font-size: 1.5vh;
  font-weight: 600;
}

#footer {
  background: rgba(38, 55, 69, 0.4);
  padding: 30px 0;
  color: #fff;
  font-size: 14px;
}

#footer .copyright {
  text-align: center;
}