:root {
  --bg: #000000;
  --panel-bg: rgba(10, 5, 20, 0.88);
  --border: rgba(0, 255, 255, 0.15);
  --border-hi: rgba(255, 0, 255, 0.4);
  --text: #00ffff;
  --text-dim: #0088aa;
  --accent: #ff00ff;
  --accent2: #00ffff;
  --glow-cyan: rgba(0, 255, 255, 0.3);
  --glow-mag: rgba(255, 0, 255, 0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  font-family: 'Share Tech Mono', monospace;
  color: var(--text);
  cursor: crosshair;
}

canvas {
  display: block;
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* CRT vignette overlay */
canvas::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}

#title-bar {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  font-family: 'Press Start 2P', monospace;
  font-size: 14px;
  letter-spacing: 6px;
  color: var(--accent);
  text-shadow:
    0 0 10px var(--glow-mag),
    0 0 30px var(--glow-mag),
    0 0 60px rgba(255, 0, 255, 0.15);
  padding: 14px 24px;
  opacity: 1;
  transition: opacity 1.5s ease;
  pointer-events: none;
  text-align: center;
}

#title-bar.faded {
  opacity: 0;
}

#scroller-bar {
  position: fixed;
  bottom: 30px;
  left: 0;
  width: 100%;
  z-index: 15;
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--accent2);
  text-shadow: 0 0 8px var(--glow-cyan), 0 0 20px var(--glow-cyan);
  white-space: nowrap;
  overflow: hidden;
  pointer-events: none;
  height: 16px;
  line-height: 16px;
}

#controls-toggle {
  position: fixed;
  bottom: 54px;
  right: 14px;
  z-index: 30;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px;
  height: 36px;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  cursor: pointer;
  transition: border-color 0.3s, box-shadow 0.3s;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

#controls-toggle:hover {
  border-color: var(--accent);
  box-shadow: 0 0 12px var(--glow-mag);
}

#controls {
  position: fixed;
  bottom: 54px;
  right: 58px;
  z-index: 25;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 16px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow:
    0 0 20px rgba(0,0,0,0.6),
    inset 0 0 30px rgba(0,255,255,0.02);
  max-width: 320px;
  width: calc(100vw - 80px);
  transition: opacity 0.3s, transform 0.3s;
}

#controls.hidden {
  opacity: 0;
  transform: translateY(10px) scale(0.95);
  pointer-events: none;
}

.control-group {
  margin-bottom: 10px;
}

.control-group label {
  display: block;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-bottom: 5px;
  text-transform: uppercase;
}

.control-group label span {
  color: var(--accent2);
  float: right;
}

.btn-group {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.ctrl-btn {
  background: rgba(0, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: 'Share Tech Mono', monospace;
  font-size: 9px;
  letter-spacing: 1px;
  padding: 5px 8px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.ctrl-btn:hover {
  border-color: var(--accent2);
  color: var(--text);
  box-shadow: 0 0 8px var(--glow-cyan);
}

.ctrl-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 0, 255, 0.1);
  box-shadow: 0 0 10px var(--glow-mag);
}

.control-row {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-top: 8px;
}

input[type="range"] {
  width: 100%;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: linear-gradient(90deg, var(--border), var(--accent2));
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border: 2px solid var(--accent2);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--glow-mag);
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--accent);
  border: 2px solid var(--accent2);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--glow-mag);
  cursor: pointer;
  border: none;
}

#fps-counter {
  position: fixed;
  top: 10px;
  right: 14px;
  z-index: 20;
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 2px;
  pointer-events: none;
}

footer {
  position: fixed;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
}

footer a {
  font-family: 'Share Tech Mono', monospace;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--accent);
  text-decoration: none;
  text-shadow: 0 0 10px var(--glow-mag);
  transition: text-shadow 0.3s;
}

footer a:hover {
  text-shadow: 0 0 20px var(--accent), 0 0 40px var(--glow-mag);
}

/* Scanline overlay */
#scanline-overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 1px,
    rgba(0, 0, 0, 0.15) 1px,
    rgba(0, 0, 0, 0.15) 2px
  );
  opacity: 0;
  transition: opacity 0.4s;
}

#scanline-overlay.active {
  opacity: 1;
}

/* Vignette */
#vignette {
  position: fixed;
  inset: 0;
  z-index: 9;
  pointer-events: none;
  background: radial-gradient(
    ellipse at center,
    transparent 55%,
    rgba(0, 0, 0, 0.5) 100%
  );
}

@media (max-width: 500px) {
  #title-bar {
    font-size: 10px;
    letter-spacing: 3px;
    padding: 10px 16px;
  }
  #controls {
    right: 8px;
    bottom: 54px;
    width: calc(100vw - 50px);
    max-width: 280px;
  }
  #controls-toggle {
    right: 8px;
  }
  #scroller-bar {
    font-size: 8px;
    bottom: 26px;
  }
}