#hud {
  position: absolute;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  font-family: var(--font-display);
}

.hud-top, .hud-bottom {
  position: absolute;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 18px;
  gap: 10px;
}
.hud-top { top: 0; }
.hud-bottom { bottom: 0; align-items: flex-end; }

.hud-block {
  background: rgba(5,4,10,0.55);
  border: 2px solid var(--cyan);
  padding: 6px 10px;
  display: flex;
  flex-direction: column;
  min-width: 90px;
}
.hud-wave { border-color: var(--yellow); align-items: center; }
.hud-highscore { border-color: var(--magenta); align-items: flex-end; }
.hud-lives { border-color: var(--red); align-items: center; }
.hud-powerup { border-color: var(--green); align-items: flex-end; min-width: 120px; }
.hud-powerup:empty, .hud-powerup.hidden { visibility: hidden; }

.hud-label {
  font-size: 9px;
  color: var(--white);
  opacity: 0.75;
  letter-spacing: 1px;
}
.hud-value {
  font-size: 15px;
  color: var(--cyan);
  text-shadow: 0 0 6px var(--cyan);
  margin-top: 3px;
}
.hud-wave .hud-value { color: var(--yellow); text-shadow: 0 0 6px var(--yellow); }
.hud-highscore .hud-value { color: var(--magenta); text-shadow: 0 0 6px var(--magenta); }
.hud-lives .hud-value { color: var(--red); text-shadow: 0 0 6px var(--red); font-size: 16px; }
.hud-powerup .hud-value { color: var(--green); text-shadow: 0 0 6px var(--green); }
.hud-powerup .hud-label { color: var(--green); opacity: 1; }

.health-bar-outer {
  width: 130px;
  height: 14px;
  border: 2px solid var(--white);
  margin-top: 4px;
  background: rgba(255,255,255,0.06);
}
.health-bar-inner {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--green), var(--yellow));
  transition: width 0.18s ease;
}
.health-bar-inner.low { background: linear-gradient(90deg, var(--red), var(--orange)); }

#boss-hud {
  position: absolute;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  width: min(70vw, 520px);
  text-align: center;
}
.boss-label {
  font-size: 11px;
  color: var(--red);
  text-shadow: 0 0 8px var(--red);
  letter-spacing: 2px;
}
.boss-bar-outer {
  width: 100%;
  height: 16px;
  border: 2px solid var(--red);
  margin-top: 4px;
  background: rgba(255,0,0,0.08);
}
.boss-bar-inner {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--red), var(--magenta));
  transition: width 0.15s ease;
}

#pause-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  pointer-events: auto;
  background: rgba(5,4,10,0.6);
  border: 2px solid var(--cyan);
  color: var(--cyan);
  font-size: 14px;
  padding: 8px 12px;
  z-index: 25;
}

.gameover-stats {
  font-family: var(--font-body);
  font-size: 20px;
  color: var(--white);
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}
.gameover-stats span { color: var(--yellow); margin-left: 8px; }

#newhighscore-banner {
  font-family: var(--font-display);
  color: var(--yellow);
  font-size: clamp(14px, 2.6vw, 20px);
  text-shadow: 0 0 10px var(--yellow);
  margin-bottom: 14px;
  animation: title-pulse 1s ease-in-out infinite;
}