@import url("https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap");

:root {
  --br: 8px;
}

* {
  box-sizing: border-box;
  font-family: "Press Start 2P", system-ui;
  margin: 0;
  padding: 0;
}

body {
  background: black;
  border-radius: var(--br);
  padding: 5em;
  min-height: 100vh;
  border-radius: 12px;
  animation: crt-flicker 0.12s infinite;
}

body::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 1px,
    rgba(0, 0, 0, 0.18) 1px,
    rgba(0, 0, 0, 0.18) 2px
  );
}

body::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(255, 255, 255, 0.02) 0%,
    transparent 70%
  );
  background-size: 3px 3px; /* size of each dot */
  mix-blend-mode: overlay;
}

h1 {
  color: white;
  font-size: 3em;
  margin: 0 0 100px;
  text-align: center;
  text-shadow: 0 0 6px white;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2em;
  margin: 0 auto;
  max-width: 980px;

  @media screen and (max-width: 768px) {
    grid-template-columns: repeat(1, 1fr);
  }
}

.game {
  align-items: center;
  background-color: black;
  border: 5px solid white;
  border-radius: var(--br);
  box-shadow: 0 0 4px white, 0 0 8px white;
  color: white;
  display: flex;
  font-size: 14px;
  flex: 1;
  justify-content: center;
  overflow: hidden;
  position: relative;
  text-align: center;
  text-decoration: none;
  height: 250px;
  text-shadow: 0 0 2px white, 0 0 4px white;
  transition: border-color 0.1s, color 0.1s;

  img {
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
    position: absolute;
    width: 100%;
    z-index: 0;
  }

  h2 {
    position: relative;
  }

  @media screen and (max-width: 992px) {
    flex: auto;
  }
}

.game:hover {
  animation: rainbowCycle 0.25s linear infinite;
  transition: all ease 0.5s;
}

#starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
}

@keyframes crt-flicker {
  0%,
  100% {
    opacity: 1;
  }
  48% {
    opacity: 0.97;
  }
  49% {
    opacity: 0.94;
  }
  50% {
    opacity: 0.9;
  }
  51% {
    opacity: 0.94;
  }
  52% {
    opacity: 0.97;
  }
}

@keyframes rainbowCycle {
  0% {
    color: #ff0000;
    border-color: #ff0000;
  }
  16% {
    color: #ff7f00;
    border-color: #ff7f00;
  }
  33% {
    color: #ffff00;
    border-color: #ffff00;
  }
  50% {
    color: #00ff00;
    border-color: #00ff00;
  }
  66% {
    color: #0000ff;
    border-color: #0000ff;
  }
  83% {
    color: #4b0082;
    border-color: #4b0082;
  }
  100% {
    color: #9400d3;
    border-color: #9400d3;
  }
}