:root {
  --foreground-rgb: 0, 0, 0;
  --background-start-rgb: 225, 225, 255;
  --background-end-rgb: 255, 255, 255;
}

@media (prefers-color-scheme: dark) {
  :root {
    --foreground-rgb: 255, 255, 255;
    --background-start-rgb: 0, 0, 0;
    --background-end-rgb: 0, 0, 0;
  }
}

body {
  color: rgb(var(--foreground-rgb));
  background: linear-gradient(
      to bottom,
      transparent,
      rgb(var(--background-end-rgb))
    )
    rgb(var(--background-start-rgb));
}

@keyframes topDrop {
  from {
    opacity: 0;
    transform: translateY(-100px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

header {
  animation-name: topDrop;
  animation-duration: 1s;
  animation-fill-mode: forwards;
  background-color: rgba(255, 255, 255, 0.35);
}