/* ==========================================================================
   Dino 3D: Dimension Dash - Design System & Styling
   Theme: Outrun / Synthwave / Cyberpunk
   ========================================================================== */

:root {
  --color-bg: #090312;
  --color-panel-bg: rgba(18, 9, 36, 0.7);
  --color-neon-pink: #ff007f;
  --color-neon-blue: #00f0ff;
  --color-neon-purple: #9d00ff;
  --color-neon-red: #ff3333;
  --color-neon-yellow: #ffea00;
  --font-display: 'Orbitron', 'Rajdhani', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
  --neon-glow-pink: 0 0 5px var(--color-neon-pink), 0 0 15px var(--color-neon-pink), 0 0 30px rgba(255, 0, 127, 0.5);
  --neon-glow-blue: 0 0 5px var(--color-neon-blue), 0 0 15px var(--color-neon-blue), 0 0 30px rgba(0, 240, 255, 0.5);
  --neon-glow-red: 0 0 5px var(--color-neon-red), 0 0 15px var(--color-neon-red), 0 0 30px rgba(255, 51, 51, 0.5);
}

/* Base resets & setups */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--color-bg);
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 400;
}

/* Three.js canvas container occupies whole viewport */
#canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* CRT Screen Effect Overlays */
.scanlines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%
  ), linear-gradient(
    90deg,
    rgba(255, 0, 0, 0.06),
    rgba(0, 255, 0, 0.02),
    rgba(0, 0, 255, 0.06)
  );
  background-size: 100% 4px, 6px 100%;
  z-index: 5;
  pointer-events: none;
}

.vignette {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  box-shadow: inset 0 0 120px rgba(0, 0, 0, 0.85);
  z-index: 6;
  pointer-events: none;
}

/* Absolute UI Shell */
#ui-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: none; /* Let clicks pass through to Three.js canvas unless clicked on actual panels */
}

#ui-container * {
  pointer-events: auto; /* Re-enable clicks inside UI elements */
}

/* Glassmorphic Panels base */
.glass-panel {
  width: 90%;
  max-width: 600px;
  background-color: var(--color-panel-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 0, 127, 0.25);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  display: none;
  flex-direction: column;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), inset 0 0 30px rgba(255, 255, 255, 0.03);
  animation: fadeIn 0.4s ease-out forwards;
}

.glass-panel.active {
  display: flex;
}

/* Audio control toggle */
.audio-control-bar {
  position: absolute;
  top: 24px;
  left: 24px;
  z-index: 20;
}

.icon-btn {
  width: 48px;
  height: 48px;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0;
  border-radius: 50%;
}

/* Glassmorphic and Neon Buttons */
.glass-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.glass-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

.glow-btn {
  background: transparent;
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 16px 32px;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.neon-border {
  border: 2px solid var(--color-neon-blue);
  box-shadow: var(--neon-glow-blue);
  text-shadow: var(--neon-glow-blue);
}

.neon-border:hover {
  background: var(--color-neon-blue);
  color: var(--color-bg);
  box-shadow: 0 0 20px var(--color-neon-blue), 0 0 40px var(--color-neon-blue);
  text-shadow: none;
  transform: translateY(-2px) scale(1.02);
}

.neon-border-red {
  border: 2px solid var(--color-neon-red);
  box-shadow: var(--neon-glow-red);
  text-shadow: var(--neon-glow-red);
}

.neon-border-red:hover {
  background: var(--color-neon-red);
  color: var(--color-bg);
  box-shadow: 0 0 20px var(--color-neon-red), 0 0 40px var(--color-neon-red);
  text-shadow: none;
  transform: translateY(-2px) scale(1.02);
}

/* Typography styles */
.game-title {
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: 6px;
  margin-bottom: 2px;
}

.game-subtitle {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 4px;
  margin-bottom: 24px;
}

.neon-text {
  color: #ffffff;
  text-shadow: var(--neon-glow-pink);
  animation: neonPulsePink 2s infinite alternate;
}

.neon-text-blue {
  color: #ffffff;
  text-shadow: var(--neon-glow-blue);
  animation: neonPulseBlue 2s infinite alternate;
}

.neon-text-red {
  color: #ffffff;
  text-shadow: var(--neon-glow-red);
  animation: neonPulseRed 1.5s infinite alternate;
}

.game-description {
  font-size: 0.95rem;
  font-family: var(--font-mono);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 30px;
  padding: 0 10px;
}

/* Form Styles */
.lobby-controls {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 30px;
}

.input-group {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.input-group label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-neon-blue);
  margin-bottom: 8px;
  text-shadow: 0 0 4px rgba(0, 240, 255, 0.4);
}

.input-group input {
  background: rgba(18, 9, 36, 0.8);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 14px;
  border-radius: 8px;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  letter-spacing: 2px;
  outline: none;
  transition: all 0.3s ease;
  box-shadow: inset 0 0 10px rgba(0, 240, 255, 0.05);
}

.input-group input:focus {
  border-color: var(--color-neon-blue);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.3), inset 0 0 10px rgba(0, 240, 255, 0.1);
}

/* Leaderboard Panel in Lobby */
.leaderboard-section {
  border-top: 1px dashed rgba(255, 255, 255, 0.15);
  padding-top: 24px;
  margin-bottom: 24px;
}

.panel-header {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 3px;
  margin-bottom: 16px;
  color: #fff;
}

.leaderboard-list {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  padding: 10px;
  max-height: 180px;
  overflow-y: auto;
  border: 1px solid rgba(255, 255, 255, 0.05);
  font-family: var(--font-mono);
}

/* Custom Scrollbar for Retro feeling */
.leaderboard-list::-webkit-scrollbar {
  width: 6px;
}
.leaderboard-list::-webkit-scrollbar-track {
  background: rgba(0,0,0,0.1);
}
.leaderboard-list::-webkit-scrollbar-thumb {
  background: var(--color-neon-pink);
  border-radius: 3px;
}

.leaderboard-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.95rem;
  letter-spacing: 1px;
}

.leaderboard-item:last-child {
  border-bottom: none;
}

.leaderboard-item.highlight {
  color: var(--color-neon-yellow);
  text-shadow: 0 0 5px rgba(255, 234, 0, 0.4);
  background: rgba(255, 234, 0, 0.05);
}

.rank {
  color: var(--color-neon-blue);
  font-weight: bold;
  width: 30px;
}

.pilot-name {
  flex-grow: 1;
  text-align: left;
}

.high-score-val {
  font-weight: bold;
}

.loading-text {
  padding: 20px;
  color: rgba(255,255,255,0.4);
  font-size: 0.9rem;
  letter-spacing: 2px;
  animation: pulse 1.5s infinite alternate;
}

/* Controls Guide banner */
.controls-guide {
  display: flex;
  justify-content: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.5);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 15px;
}

/* HUD PANEL (Always Active In-Game, positioned at top) */
.hud-panel {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 24px 40px;
  display: none; /* Managed by JS */
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.hud-panel.active {
  display: flex;
}

.hud-top {
  width: 100%;
  display: flex;
  justify-content: space-between;
  max-width: 1200px;
}

.hud-stat-box {
  background: rgba(18, 9, 36, 0.6);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 8px;
  padding: 10px 20px;
  min-width: 160px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 2px;
  color: var(--color-neon-blue);
  margin-bottom: 4px;
}

.stat-val {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 1px;
  color: #fff;
}

/* Dimension Shift Alerts */
.dimension-alert {
  background: rgba(255, 0, 127, 0.15);
  border: 1px solid var(--color-neon-pink);
  border-radius: 6px;
  padding: 12px 24px;
  text-align: center;
  max-width: 400px;
  width: 100%;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 0 15px rgba(255, 0, 127, 0.15);
  animation: slideDownAlert 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.alert-title {
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: #fff;
  text-shadow: var(--neon-glow-pink);
}

.alert-desc {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  color: rgba(255,255,255,0.8);
  margin-top: 2px;
  margin-bottom: 8px;
}

.alert-progress-bar {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  overflow: hidden;
}

.alert-progress {
  height: 100%;
  width: 100%;
  background: var(--color-neon-pink);
  box-shadow: 0 0 8px var(--color-neon-pink);
  transition: width 0.1s linear;
}

/* GAME OVER PANEL SPECIALS */
#game-over-panel {
  border-color: rgba(255, 51, 51, 0.3);
}

.game-over-actions {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 30px;
}

.game-over-leaderboard {
  border-top: 1px dashed rgba(255, 255, 255, 0.15);
  padding-top: 20px;
}

.new-high-score-tag {
  color: var(--color-neon-yellow);
  text-shadow: 0 0 10px var(--color-neon-yellow);
  font-size: 1.4rem;
  font-weight: bold;
  letter-spacing: 3px;
  margin-bottom: 24px;
}

/* Keyframes & Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideDownAlert {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0% { opacity: 0.4; }
  100% { opacity: 1; }
}

@keyframes neonPulsePink {
  0% { text-shadow: 0 0 4px var(--color-neon-pink), 0 0 10px var(--color-neon-pink), 0 0 18px rgba(255, 0, 127, 0.4); }
  100% { text-shadow: 0 0 6px var(--color-neon-pink), 0 0 18px var(--color-neon-pink), 0 0 30px rgba(255, 0, 127, 0.6); }
}

@keyframes neonPulseBlue {
  0% { text-shadow: 0 0 4px var(--color-neon-blue), 0 0 10px var(--color-neon-blue), 0 0 18px rgba(0, 240, 255, 0.4); }
  100% { text-shadow: 0 0 6px var(--color-neon-blue), 0 0 18px var(--color-neon-blue), 0 0 30px rgba(0, 240, 255, 0.6); }
}

@keyframes neonPulseRed {
  0% { text-shadow: 0 0 3px var(--color-neon-red), 0 0 8px var(--color-neon-red); }
  100% { text-shadow: 0 0 5px var(--color-neon-red), 0 0 14px var(--color-neon-red); }
}

.animate-pulse {
  animation: pulse 0.8s infinite alternate;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .glass-panel {
    padding: 24px 16px;
    width: 95%;
  }
  .game-title {
    font-size: 2.2rem;
  }
  .game-subtitle {
    font-size: 1rem;
    margin-bottom: 16px;
  }
  .hud-top {
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
  }
  .hud-stat-box {
    min-width: 100px;
    padding: 6px 12px;
    flex-grow: 1;
  }
  .stat-val {
    font-size: 1.1rem;
  }
  .game-over-actions {
    flex-direction: column;
    gap: 10px;
  }
  .glow-btn {
    padding: 12px 18px;
    font-size: 0.95rem;
  }
}