* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; height: 100dvh; background: #0b1a12; color: #e8f0e4; font-family: "Courier New", monospace; overflow: hidden; }
#wrap { position: relative; width: 100vw; width: 100dvw; height: 100vh; height: 100dvh; display: flex; align-items: center; justify-content: center; touch-action: none; }
canvas { image-rendering: pixelated; image-rendering: crisp-edges; background: #0b1a12; touch-action: none; }
#ui { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); image-rendering: auto; pointer-events: none; background: transparent; }
.overlay { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; pointer-events: none; background: rgba(0,0,0,0.45); }
.overlay.hidden { display: none; }
.overlay .title { font-size: 28px; letter-spacing: 2px; text-shadow: 2px 2px 0 #000; margin-bottom: 8px; }
.overlay .body { font-size: 14px; line-height: 1.5; max-width: 480px; padding: 0 16px; }
.overlay .hint { font-size: 12px; margin-top: 12px; opacity: 0.8; }

/* ---- Touch controls ---- */
.touch-controls {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}
.touch-controls .tc-group {
  position: absolute;
  display: flex;
  gap: 8px;
  pointer-events: none;
  align-items: flex-end;
}
.tc-left { bottom: calc(14px + env(safe-area-inset-bottom)); left: calc(14px + env(safe-area-inset-left)); }
.tc-right { bottom: calc(14px + env(safe-area-inset-bottom)); right: calc(14px + env(safe-area-inset-right)); }
.tc-top { top: calc(8px + env(safe-area-inset-top)); right: calc(8px + env(safe-area-inset-right)); gap: 6px; align-items: flex-start; }

.tc-btn {
  pointer-events: auto;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  border: 2px solid rgba(232, 240, 228, 0.55);
  background: rgba(27, 58, 42, 0.45);
  color: #e8f0e4;
  font-family: "Courier New", monospace;
  border-radius: 8px;
  min-width: 46px;
  min-height: 46px;
  font-size: 12px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  opacity: 0.5;
  transition: opacity 0.12s ease, background 0.12s ease;
  cursor: pointer;
}
.tc-btn:active, .tc-btn.active {
  opacity: 0.9;
  background: rgba(27, 58, 42, 0.8);
}
.tc-dir { min-width: 52px; min-height: 52px; font-size: 16px; border-radius: 10px; }
.tc-dash { min-width: 58px; min-height: 58px; border-radius: 29px; font-size: 11px; }
.tc-jump { min-width: 72px; min-height: 72px; border-radius: 36px; font-size: 13px; font-weight: bold; }
.tc-small { min-width: 34px; min-height: 34px; font-size: 14px; border-radius: 6px; opacity: 0.4; }

/* Fine-pointer (mouse): hidden unless recently moved */
@media (pointer: fine) {
  .touch-controls { opacity: 0; transition: opacity 0.25s ease; pointer-events: none; }
  .touch-controls.tc-visible { opacity: 1; pointer-events: auto; }
  .touch-controls.tc-visible .tc-btn { opacity: 0.5; pointer-events: auto; }
  .touch-controls:not(.tc-visible) .tc-btn { pointer-events: none; }
}
/* Coarse-pointer / no-hover (touch): always visible */
@media (pointer: coarse), (hover: none) {
  .touch-controls { opacity: 1; pointer-events: auto; }
  .touch-controls .tc-btn { pointer-events: auto; opacity: 0.55; }
}