:root {
  --bg-color: #020206;
  --card-bg: rgba(10, 14, 28, 0.88);
  --neon-cyan: #00f3ff;
  --neon-purple: #b026ff;
  --neon-amber: #ff9900;
  --neon-red: #ff2a5f;
  --text-main: #f1f5f9;
  --text-dim: #94a3b8;
  --border-glow: rgba(0, 243, 255, 0.35);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: 'Rajdhani', sans-serif;
  overflow: hidden;
  width: 100vw;
  height: 100vh;
}

#canvas-container {
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* ======================================================================
   HUD OVERLAY
   ====================================================================== */
#hud-overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px 24px;
}

.hud-panel {
  background: var(--card-bg);
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  padding: 10px 18px;
  backdrop-filter: blur(10px);
  pointer-events: auto;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.7);
}

/* TOP BAR */
.hud-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.stat-label {
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-family: 'Orbitron', sans-serif;
}

.stat-value {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.stat-value small {
  font-size: 0.75rem;
  color: var(--neon-cyan);
}

.progress-track {
  width: 200px;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  margin-top: 6px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
  box-shadow: 0 0 10px var(--neon-cyan);
  transition: width 0.3s ease;
}

/* 5D AXIS CONTROLLERS */
.hud-axis-left {
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
}

.axis-slider-vertical {
  height: 220px;
  width: 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  position: relative;
  display: flex;
  justify-content: center;
}

.slider-thumb {
  position: absolute;
  top: 50%;
  width: 26px;
  height: 14px;
  background: var(--neon-cyan);
  box-shadow: 0 0 12px var(--neon-cyan);
  border-radius: 3px;
  transform: translateY(-50%);
  transition: top 0.1s ease-out;
}

.hud-axis-right {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: auto;
}

.realm-btn {
  background: rgba(12, 16, 32, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-dim);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.72rem;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.realm-btn:hover {
  border-color: var(--neon-cyan);
  color: #fff;
}

.realm-btn.active {
  border-color: var(--neon-purple);
  color: #fff;
  background: rgba(176, 38, 255, 0.25);
  box-shadow: 0 0 15px rgba(176, 38, 255, 0.4);
}

.realm-badge {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
}

.realm-btn.active .realm-badge {
  background: var(--neon-purple);
  box-shadow: 0 0 8px var(--neon-purple);
}

/* BOTTOM BAR */
.hud-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.radar-box {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  border: 1px solid var(--neon-cyan);
  background: rgba(0, 243, 255, 0.04);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
  pointer-events: auto;
  overflow: hidden;
}

.radar-crosshair {
  position: absolute;
  width: 100%;
  height: 1px;
  background: rgba(0, 243, 255, 0.25);
}
.radar-crosshair.vert {
  width: 1px;
  height: 100%;
}

.radar-sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(0, 243, 255, 0.35) 0deg, transparent 60deg);
  animation: sweep 3s linear infinite;
}

@keyframes sweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

#radar-blips {
  position: absolute;
  inset: 0;
}

.radar-blip {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.radar-blip.player {
  background: #fff;
  box-shadow: 0 0 6px #fff;
  width: 6px;
  height: 6px;
}

.radar-blip.normal {
  background: var(--neon-cyan);
}

.radar-blip.ghost {
  background: var(--neon-purple);
  opacity: 0.6;
}

.radar-blip.hazard {
  background: var(--neon-red);
}

.skills-bar {
  display: flex;
  gap: 10px;
  pointer-events: auto;
}

.skill-slot {
  width: 62px;
  height: 62px;
  background: var(--card-bg);
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: all 0.2s;
}

.skill-slot:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0, 243, 255, 0.5);
  transform: translateY(-2px);
}

.skill-icon {
  font-size: 1.25rem;
  margin-bottom: 2px;
}

.skill-hotkey {
  position: absolute;
  top: 4px; left: 6px;
  font-size: 0.65rem;
  color: var(--neon-cyan);
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
}

.skill-name {
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  font-family: 'Orbitron', sans-serif;
}

/* GUIDES & CONTROLS HELPER */
.controls-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
  background: rgba(0, 0, 0, 0.6);
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ======================================================================
   MODALS: EVOLUTION TREE & STAGE CLEAR & GAME OVER
   ====================================================================== */
.game-modal {
  position: absolute;
  inset: 0;
  background: rgba(2, 3, 8, 0.88);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.game-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: rgba(12, 16, 32, 0.95);
  border: 1px solid var(--neon-cyan);
  border-radius: 12px;
  padding: 28px;
  max-width: 900px;
  width: 90%;
  box-shadow: 0 0 40px rgba(0, 243, 255, 0.25);
}

.game-btn {
  background: rgba(12, 16, 32, 0.8);
  border: 1px solid var(--neon-cyan);
  color: #fff;
  padding: 12px 20px;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.game-btn:hover {
  background: var(--neon-cyan);
  color: #000;
  box-shadow: 0 0 20px rgba(0, 243, 255, 0.7);
}

.game-btn.secondary {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-dim);
}

.game-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  color: #fff;
}