:root {
  --foreground: #c3ce9f;
  --background: #242424;
}

body {
  margin: 0;
  background: var(--background);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
}
canvas {
  width: 100vw;
  height: 100vh;
  max-width: 1920px;
  max-height: 1080px;
}

#open-rom-btn {
  position: fixed;
  top: 55%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 100;

  font-family: monospace;
  font-size: 13px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--foreground);

  background: var(--background);
  border: 2px solid var(--foreground);

  padding: 10px 22px;
  cursor: pointer;
}
#open-rom-btn:hover {
  background: var(--foreground);
  color: var(--background);
}
#open-rom-btn:active {
  background: var(--primary);
  color: var(--background);
}

#rom-input {
  display: none;
}