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

body {
  background: #0a0a12;
  overflow: hidden;
  font-family: 'Share Tech Mono', monospace;
  color: #00ff88;
  cursor: crosshair;
  -webkit-user-select: none;
  user-select: none;
}

canvas {
  display: block;
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
}

/* Scanline overlay */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.06) 2px,
    rgba(0,0,0,0.06) 4px
  );
  pointer-events: none;
  z-index: 1000;
}

#hud {
  position: fixed;
  top: 0; left: 0; right: 0;
  padding: 16px 24px;
  z-index: 100;
  pointer-events: none;
}

#title {
  font-size: 28px;
  letter-spacing: 12px;
  text-align: center;
  text-shadow:
    0 0 10px var(--glow, #00ff88),
    0 0 30px var(--glow, #00ff88),
    0 0 60px var(--glow, #00ff88);
  animation: glitch 3s infinite;
}

@keyframes glitch {
  0%, 92%, 100% { opacity: 1; transform: translate(0); }
  93% { opacity: 0.8; transform: translate(-2px, 1px); }
  94% { opacity: 1; transform: translate(2px, -1px); }
  95% { opacity: 0.6; transform: translate(-1px, 2px); }
  96% { opacity: 1; transform: translate(0); }
}

#stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 8px;
  font-size: 13px;
  opacity: 0.9;
}

.stat {
  text-shadow: 0 0 8px var(--glow, #00ff88);
}

#containment-wrap {
  margin-top: 8px;
  text-align: center;
  font-size: 12px;
}

#containment-bar-bg {
  width: 240px;
  height: 14px;
  margin: 0 auto;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glow, #00ff88);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

#containment-bar {
  height: 100%;
  width: 95%;
  background: var(--glow, #00ff88);
  opacity: 0.5;
  transition: width 0.6s ease;
}

#containment-pct {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: #fff;
  text-shadow: 0 0 4px #000;
}

#controls {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 12px 16px 20px;
  z-index: 100;
  background: linear-gradient(transparent, rgba(10,10,18,0.85));
  flex-wrap: wrap;
}

#controls button, #controls label {
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  color: var(--glow, #00ff88);
}

#btn-reset {
  background: rgba(255,34,68,0.15);
  border: 1px solid #ff2244;
  color: #ff2244;
  padding: 6px 14px;
  cursor: pointer;
  border-radius: 2px;
  text-shadow: 0 0 6px #ff2244;
  transition: background 0.2s;
}
#btn-reset:hover { background: rgba(255,34,68,0.35); }

#lbl-auto, #lbl-speed {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
}

input[type="range"] {
  width: 80px;
  accent-color: var(--glow, #00ff88);
}

input[type="checkbox"] {
  accent-color: var(--glow, #00ff88);
}

#theme-btns {
  display: flex; gap: 6px;
}

.theme-btn {
  width: 22px; height: 22px;
  border: 2px solid transparent;
  border-radius: 50%;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
}
.theme-btn.active { border-color: #fff; transform: scale(1.2); }
.theme-btn:hover { transform: scale(1.15); }

#warning-toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 18px;
  letter-spacing: 3px;
  text-align: center;
  text-shadow: 0 0 20px var(--glow, #00ff88), 0 0 40px var(--glow, #00ff88);
  opacity: 0;
  transition: opacity 0.4s;
  z-index: 200;
  pointer-events: none;
  padding: 20px 40px;
  background: rgba(10,10,18,0.7);
  border: 1px solid var(--glow, #00ff88);
}

#warning-toast.show { opacity: 1; }

#futility-msg {
  position: fixed;
  bottom: 80px;
  left: 0; right: 0;
  text-align: center;
  font-size: 16px;
  letter-spacing: 6px;
  opacity: 0;
  transition: opacity 2s;
  z-index: 200;
  pointer-events: none;
  color: #ff2244;
  text-shadow: 0 0 15px #ff2244;
}

#footer {
  position: fixed;
  bottom: 4px;
  right: 12px;
  z-index: 100;
  font-size: 10px;
  opacity: 0.4;
}
#footer a {
  color: var(--glow, #00ff88);
  text-decoration: none;
}
#footer a:hover { opacity: 1; }

@media (max-width: 600px) {
  #title { font-size: 18px; letter-spacing: 6px; }
  #stats { gap: 12px; font-size: 11px; flex-wrap: wrap; justify-content: center; }
  #controls { gap: 10px; padding: 8px 8px 16px; }
  #warning-toast { font-size: 14px; padding: 14px 20px; }
}