:root {
  --dark: oklch(0.15 0 0);
  --transDark: oklch(0.15 0 0 / 0.3);
  --light: oklch(0.9 0 0);
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;

  font-family: "Orbitron";
  font-weight: 900;
  font-size: 20px;

  border-radius: 4px;
  corner-shape: squircle;
}

*::selection {
  background: var(--dark);
  color: var(--light);
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  position: fixed;
}

input,
textarea,
select {
  border: 0 !important;
  outline: 0 !important;
  box-shadow: none !important;
  -webkit-appearance: none;
  appearance: none;
}
input::placeholder,
textarea::placeholder {
  color: var(--dark);
  opacity: 1;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  background: var(--transDark);
  border-radius: 4px;
  corner-shape: squircle;
}

input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  background: var(--transDark);
  border: none;
  border-radius: 4px;
  corner-shape: squircle;
}

body {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;

  height: 100vh;

  background-color: var(--dark);

  -webkit-font-smoothing: antialiased;
}

button {
  background-color: var(--input);
  color: var(--dark);

  border: none;
  outline: none;
  cursor: pointer;

  transition:
    background-color 0.15s ease,
    transform 0.15s ease;
}

button:hover {
  transform: translateY(-2px);
}

button:active {
  transform: translateY(0);
}

#App {
  height: 768px;
  width: 1024px;
  position: relative;
}

#Game {
  position: absolute;
  width: 1024px;
  height: 768px;
}

#Menu {
  position: absolute;

  width: 1024px;
  height: 768px;

  display: grid;
  grid-template-columns: repeat(auto-fill, 56px);
  grid-template-rows: repeat(auto-fill, 56px);
  gap: 8px;

  padding: 4px;

  justify-content: center;
  align-content: center;

  backdrop-filter: blur(16px);
  background-color: var(--transDark);
}

#Menu > * {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-break: strict;
  padding: 8px;
  opacity: 1;
  color: var(--dark);
}

#Huge {
  position: absolute;
  display: flex;
  font-size: 256px;
  color: var(--light);
  width: 1024px;
  height: 768px;
  text-align: center;
  align-items: center;
  justify-content: center;
  user-select: none;
  opacity: 0.9;
  transition: none;
  padding: 8px;

  text-shadow:
    0 0 8px color-mix(in srgb, var(--input) 60%, transparent),
    0 0 16px color-mix(in srgb, var(--input) 50%, transparent),
    0 0 32px color-mix(in srgb, var(--input) 40%, transparent);
}

#Huge.fading-out {
  transition: opacity 1000ms ease-in;
}

#Stats {
  position: absolute;
  left: 0;
  top: 8px;
  width: 1024px;
  background: transparent;
  color: var(--light);
  pointer-events: none;
}