:root {
  color-scheme: light dark;
  --green: #00b755;
  --red: #ca4754;
  --yelllow: #daaf38;
  --gray: #777;
  --ligth-gray: #bbb;
  --black: #222;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  scroll-behavior: smooth;
}

body {
  font-family: monospace;
  background-color: var(--black);
  display: grid;
  place-content: center;
  padding: 2rem;
}

#gameOver,
#gameWin {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;

  & button {
    background-color: transparent;
    width: 70px;
    height: 70px;
    border: 0;
    border-radius: 1rem;
    margin-top: 0.5rem;
    padding: 0.5rem;
    opacity: 0.4;
    cursor: pointer;
    transition: opacity 300ms ease-in-out, scale 300ms ease-in-out;

    &:hover {
      background: #444;
      opacity: 1;
      scale: 1.1;
    }
  }
}

h1 {
  display: flex;
  justify-content: center;
  align-items: center;
}

div {
  display: grid;
  padding: 1rem;
  gap: 0.5rem;
  justify-content: space-between;
  max-width: 800px;

  & p {
    display: grid;
    place-content: center;
    font-size: 1.5rem;
    border: solid 2px var(--gray);
    width: 50px;
    height: 50px;

    &.correct {
      background-color: var(--green);
    }

    &.semicorrect {
      background-color: var(--yelllow);
    }

    &.complete {
      animation: rotateCard 600ms forwards;
      transition: background-color 200ms;
    }
  }
}

@keyframes rotateCard {
  0%,
  100% {
    transform: rotateX(0deg);
  }

  50% {
    transform: rotateX(90deg);
  }
}

input {
  z-index: -999;
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  opacity: 0;
}