header {
  position: relative;
  width: 100%;
  height: 300px;
  background: linear-gradient(rgba(60, 60, 60, 0.608), rgba(10, 10, 10, 0.608), rgba(0, 0, 0, 0.96)), 
    url("/black_hole.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 100%;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}

header h1 {
  color: var(--bright-main);
  font-family: JetBrainsItalic;
  font-weight: 900;
  font-size: 50px;
  text-shadow: 0px 4px 3px rgba(0,0,0,0.4),
             0px 8px 13px rgba(0,0,0,0.1),
             0px 18px 23px rgba(0,0,0,0.1);
}

header h3 {
  color: var(--bright-second);
  font-family: Ubuntu;
  font-weight: 900;
  letter-spacing: 1px;
  font-size: 30px;
  text-shadow: 0px 4px 3px rgba(0,0,0,0.4),
             0px 8px 13px rgba(0,0,0,0.1),
             0px 18px 23px rgba(0,0,0,0.1);
}