html, body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #000;
  font-family: 'Courier New', monospace;
  user-select: none;
}

#game {
  display: block;
  width: 100vw;
  height: 100vh;
}

/* ---------- HUD ---------- */
#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

#crosshair {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: #ffcc44;
  font-size: 24px;
  font-weight: bold;
  text-shadow: 0 0 4px #000;
}

#vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(200, 0, 0, 0.55) 100%);
  opacity: 0;
  transition: opacity 0.45s ease-out;
}

#hp-wrap {
  position: absolute;
  left: 24px;
  bottom: 18px;
  color: #ff3333;
}

#hp-wrap #hp {
  font-size: 56px;
  font-weight: bold;
  text-shadow: 2px 2px 0 #000;
}

#armor-wrap {
  position: absolute;
  left: 24px;
  bottom: 96px;
  color: #44cc66;
}

#armor-wrap #armor {
  font-size: 40px;
  font-weight: bold;
  text-shadow: 2px 2px 0 #000;
}

#note {
  position: absolute;
  left: 50%;
  bottom: 130px;
  transform: translateX(-50%);
  font-size: 20px;
  font-weight: bold;
  letter-spacing: 2px;
  color: #ffee99;
  text-shadow: 2px 2px 0 #000;
  opacity: 0;
  pointer-events: none;
}

#note.show {
  animation: notemsg 1.4s ease-out forwards;
}

@keyframes notemsg {
  0%   { opacity: 0; transform: translateX(-50%) translateY(8px); }
  15%  { opacity: 1; transform: translateX(-50%) translateY(0); }
  70%  { opacity: 1; }
  100% { opacity: 0; }
}

#ammo-wrap {
  position: absolute;
  right: 24px;
  bottom: 18px;
  color: #ffcc44;
  text-align: right;
}

#ammo-wrap #ammo {
  font-size: 56px;
  font-weight: bold;
  text-shadow: 2px 2px 0 #000;
}

.label {
  display: block;
  font-size: 14px;
  color: #aaa;
  letter-spacing: 2px;
}

#info {
  position: absolute;
  left: 16px;
  top: 12px;
  color: #ccc;
  font-size: 16px;
  letter-spacing: 1px;
  text-shadow: 1px 1px 0 #000;
}

/* 出口コンパス */
#compass {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: #44ff88;
  text-shadow: 0 0 8px rgba(0, 255, 100, 0.8), 1px 1px 0 #000;
}

#compass-arrow {
  display: block;
  font-size: 30px;
  line-height: 1;
}

#compass-dist {
  display: block;
  font-size: 12px;
  letter-spacing: 2px;
  margin-top: 2px;
}

#flash-msg {
  position: absolute;
  left: 50%;
  top: 30%;
  transform: translateX(-50%);
  font-size: 48px;
  font-weight: bold;
  letter-spacing: 6px;
  color: #ffcc44;
  text-shadow: 3px 3px 0 #000, 0 0 20px rgba(255, 150, 0, 0.7);
  opacity: 0;
  pointer-events: none;
}

#flash-msg.show {
  animation: flashmsg 2s ease-out forwards;
}

@keyframes flashmsg {
  0%   { opacity: 0; transform: translateX(-50%) scale(0.8); }
  15%  { opacity: 1; transform: translateX(-50%) scale(1.05); }
  25%  { transform: translateX(-50%) scale(1.0); }
  70%  { opacity: 1; }
  100% { opacity: 0; }
}

/* ---------- Overlay ---------- */
#overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.72);
  z-index: 20;
  cursor: pointer;
}

#overlay.hidden {
  display: none;
}

#overlay-box {
  text-align: center;
  color: #eee;
}

#overlay-title {
  font-size: 64px;
  color: #cc2222;
  letter-spacing: 8px;
  margin: 0 0 12px;
  text-shadow: 4px 4px 0 #000, 0 0 24px rgba(255, 60, 0, 0.6);
}

#overlay-msg {
  font-size: 22px;
  color: #ffcc44;
}

.controls {
  font-size: 14px;
  color: #999;
}