:root {
  --bg: #10131c;
  --panel: #1a2030;
  --accent: #e52521;
}

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

html, body {
  height: 100%;
  background: var(--bg);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  overflow: hidden;
  touch-action: manipulation;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
}

#wrap {
  position: relative;
  width: min(100vw, calc(100vh * 1.6667));
  aspect-ratio: 960 / 576;
}

#game {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
  background: #5c94fc;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
}

/* ---------- Touch controls ---------- */
#touch {
  position: absolute;
  inset: 0;
  display: none;
  pointer-events: none;
}

body.touch #touch { display: block; }

.tgroup {
  position: absolute;
  bottom: 12px;
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

#tleft-right { left: 14px; }
#tjump-run   { right: 14px; }

.tbtn {
  pointer-events: auto;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35);
  background: rgba(15, 20, 35, 0.45);
  color: rgba(255, 255, 255, 0.9);
  font: bold 20px ui-monospace, monospace;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  backdrop-filter: blur(2px);
}

.tbtn:active { background: rgba(255, 255, 255, 0.25); }

.tbtn.small {
  width: 52px;
  height: 52px;
  font-size: 12px;
}

@media (max-width: 700px) {
  .tbtn { width: 58px; height: 58px; font-size: 16px; }
}