/* ── Reset ────────────────────────────────────────────────────────── */
html, body {
  width: 100%; height: 100%;
  margin: 0; overflow: hidden;
  background: #000;
  color: #3f3;
  font-family: 'Courier New', Courier, monospace;
}

/* ── Canvas ───────────────────────────────────────────────────────── */
#gameCanvas {
  width: 100%; height: 100%;
  display: block;
  touch-action: none;
  cursor: crosshair;
}

/* ── HUD ──────────────────────────────────────────────────────────── */
#hud {
  position: fixed;
  top: 10px; left: 10px;
  z-index: 10;
  pointer-events: none;
  font-size: 13px;
  line-height: 1.7;
  text-shadow: 0 0 6px #3f3;
  letter-spacing: 1px;
}
#hud .sep { margin: 0 6px; opacity: 0.5; }
#hud .controls { font-size: 11px; opacity: 0.55; margin-top: 2px; }

/* ── Radar ────────────────────────────────────────────────────────── */
#radar {
  position: fixed;
  top: calc(50% + 24px); left: 50%; transform: translateX(-50%);
  z-index: 10;
  pointer-events: none;
  border: 1px solid rgba(63, 255, 63, 0.35);
  border-radius: 50%;
  background: rgba(0, 8, 0, 0.5);
}

/* ── Crosshair ────────────────────────────────────────────────────── */
#crosshair {
  position: fixed;
  left: 50%; top: 50%;
  z-index: 11;
  pointer-events: none;
}
.ch {
  position: absolute;
  background: rgba(63, 255, 63, 0.7);
}
.ch-h {
  width: 24px; height: 1px;
  top: 0; left: -12px;
}
.ch-v {
  width: 1px; height: 24px;
  top: -12px; left: 0;
}
.ch-dot {
  position: absolute;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: #3f3;
  top: -1px; left: -1px;
}

/* ── Damage flash ─────────────────────────────────────────────────── */
#damageFlash {
  position: fixed; inset: 0;
  z-index: 9;
  pointer-events: none;
  background: rgba(255, 50, 50, 0);
  transition: background 0.08s ease-out;
}
#damageFlash.flash {
  background: rgba(255, 50, 50, 0.35);
}

/* ── Message overlay ──────────────────────────────────────────────── */
#message {
  position: fixed;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  z-index: 20;
  color: #3f3;
  background: rgba(0, 0, 0, 0.82);
  border: 2px solid rgba(63, 255, 63, 0.6);
  padding: 20px 28px;
  font-size: 22px;
  text-align: center;
  text-shadow: 0 0 8px #3f3;
  letter-spacing: 2px;
}
.hidden { display: none; }