:root {
  --bg: #020402;
  --panel: rgba(5, 12, 6, 0.92);
  --panel-border: rgba(90, 255, 140, 0.22);
  --green-main: rgba(110, 255, 150, 0.95);
  --green-soft: rgba(90, 255, 140, 0.50);
  --green-faint: rgba(70, 180, 100, 0.18);
  --glow-size: 8px;
  --line-alpha: 0.9;
  --scanline-opacity: 0.07;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background:
    radial-gradient(circle at top, rgba(25, 70, 35, 0.18), transparent 38%),
    linear-gradient(180deg, #040704 0%, #010201 100%);
  color: var(--green-main);
  font-family: "Courier New", Courier, monospace;
}

#app {
  position: fixed;
  inset: 0;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
	image-rendering: pixelated;
}

#scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(120, 255, 160, 0.10) 0px,
      rgba(120, 255, 160, 0.10) 1px,
      rgba(0, 0, 0, 0.0) 2px,
      rgba(0, 0, 0, 0.0) 4px
    );
  mix-blend-mode: screen;
  transition: opacity 120ms ease;
}

#vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at center,
      rgba(0, 0, 0, 0) 48%,
      rgba(0, 0, 0, 0.18) 78%,
      rgba(0, 0, 0, 0.42) 100%);
}

#launcher {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(360px, calc(100vw - 24px));
  padding: 14px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  backdrop-filter: blur(8px);
  box-shadow:
    0 0 0 1px rgba(100, 255, 150, 0.04) inset,
    0 0 24px rgba(50, 180, 90, 0.16);
  z-index: 10;
  text-align: center;
}

#launcher.hidden {
  display: none;
}

#launcher h1 {
  margin: 0 0 10px;
  font-size: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-main);
  text-shadow: 0 0 var(--glow-size) rgba(110, 255, 150, 0.35);
}

#launcher p {
  margin: 0 0 12px;
  font-size: 12px;
  line-height: 1.45;
  color: rgba(140, 255, 170, 0.78);
}

.controls {
  margin: 0 0 14px;
}

.row {
  display: grid;
  grid-template-columns: 104px 1fr 44px;
  gap: 8px;
  align-items: center;
  margin: 7px 0;
  font-size: 12px;
  text-align: left;
}

.row.toggle {
  grid-template-columns: 1fr auto;
}

.value {
  text-align: right;
  color: rgba(140, 255, 170, 0.8);
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  width: 100%;
  accent-color: #80ff9e;
  background: transparent;
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: #7fff9d;
}

.buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

button, .xr-button {
  border: 1px solid rgba(95, 255, 145, 0.25);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(20, 60, 28, 0.85), rgba(5, 18, 8, 0.95));
  color: var(--green-main);
  padding: 10px 14px;
  font: inherit;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow:
    0 0 16px rgba(70, 200, 105, 0.12),
    inset 0 0 10px rgba(80, 255, 130, 0.08);
  text-shadow: 0 0 var(--glow-size) rgba(110, 255, 150, 0.4);
}

button:hover, .xr-button:hover {
  border-color: rgba(120, 255, 160, 0.45);
}

#touchHint {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(4, 10, 5, 0.70);
  border: 1px solid rgba(90, 255, 140, 0.16);
  color: rgba(145, 255, 175, 0.72);
  font-size: 12px;
  z-index: 4;
  opacity: 0;
  transition: opacity 120ms ease;
}

#touchHint.visible {
  opacity: 1;
}

@media (max-width: 640px) {
  #launcher {
    top: 8px;
    width: calc(100vw - 16px);
  }
}