@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;800;900&family=Rajdhani:wght@500;600;700&family=Share+Tech+Mono&display=swap');

:root {
  --cyan-glow: #00f3ff;
  --cyan-dim: rgba(0, 243, 255, 0.25);
  --cyan-bright: #80f9ff;
  --amber-glow: #ffaa00;
  --magenta-glow: #ff0077;
  --bg-dark: #020612;
  --panel-bg: rgba(3, 10, 24, 0.75);
  --panel-border: rgba(0, 243, 255, 0.35);
  --font-display: 'Orbitron', -apple-system, sans-serif;
  --font-sub: 'Rajdhani', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-dark);
  font-family: var(--font-sub);
  color: #d1f7ff;
}

/* 3D Canvas Container */
#canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Scanline and CRT Overlay (Subtle Tron Aesthetic) */
.scanlines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%
  ), linear-gradient(
    90deg,
    rgba(255, 0, 0, 0.02),
    rgba(0, 255, 0, 0.01),
    rgba(0, 0, 255, 0.02)
  );
  background-size: 100% 3px, 6px 100%;
  opacity: 0.7;
}

/* Cyber Vignette */
.vignette {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
  box-shadow: inset 0 0 120px rgba(0, 5, 20, 0.85);
}

/* Master UI Container */
#ui-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  pointer-events: none;
  padding: 1.5rem 2rem;
}

/* Make Interactive HUD Elements Clickable */
.interactive {
  pointer-events: auto;
}

/* =========================================================================
   TOP HEADER HUD
   ========================================================================= */
.top-hud {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.brand-logo {
  width: 44px;
  height: 44px;
  border: 2px solid var(--cyan-glow);
  box-shadow: 0 0 15px var(--cyan-glow), inset 0 0 10px var(--cyan-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(45deg);
  background: rgba(0, 243, 255, 0.1);
}

.brand-logo svg {
  transform: rotate(-45deg);
  fill: var(--cyan-bright);
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: #ffffff;
  text-shadow: 0 0 10px var(--cyan-glow);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan-glow);
  letter-spacing: 1.5px;
}

/* Mode Selector Switcher */
.mode-selector {
  display: flex;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  padding: 4px;
  gap: 6px;
  backdrop-filter: blur(12px);
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  box-shadow: 0 0 20px rgba(0, 243, 255, 0.15);
}

.mode-btn {
  background: transparent;
  border: 1px solid transparent;
  color: rgba(209, 247, 255, 0.7);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 8px 16px;
  cursor: pointer;
  letter-spacing: 1px;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mode-btn:hover {
  color: #ffffff;
  background: rgba(0, 243, 255, 0.15);
  border-color: var(--cyan-dim);
}

.mode-btn.active {
  background: rgba(0, 243, 255, 0.25);
  border: 1px solid var(--cyan-glow);
  color: #ffffff;
  box-shadow: 0 0 12px var(--cyan-glow), inset 0 0 8px var(--cyan-dim);
  text-shadow: 0 0 8px var(--cyan-glow);
}

/* Top Right Actions */
.top-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.cyber-btn {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  color: var(--cyan-bright);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 8px 14px;
  cursor: pointer;
  letter-spacing: 1px;
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.cyber-btn:hover {
  background: rgba(0, 243, 255, 0.2);
  border-color: var(--cyan-glow);
  box-shadow: 0 0 12px var(--cyan-glow);
  color: #ffffff;
}

.cyber-btn.active {
  border-color: var(--amber-glow);
  color: var(--amber-glow);
  box-shadow: 0 0 12px var(--amber-glow);
}

.resolution-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 6px 10px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(0, 243, 255, 0.4);
  color: var(--cyan-glow);
}

.resolution-tag.active {
  border-color: var(--amber-glow);
  color: var(--amber-glow);
  box-shadow: 0 0 10px var(--amber-glow);
}

/* =========================================================================
   CENTER HOLOGRAPHIC LYRICS HUD
   ========================================================================= */
.lyrics-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem 2rem;
  max-width: 900px;
  margin: 0 auto;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.lyrics-overlay.hidden {
  opacity: 0;
  transform: translateY(20px);
}

.lyrics-sub {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--amber-glow);
  letter-spacing: 3px;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 10px rgba(255, 170, 0, 0.8);
}

.lyrics-main {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.3;
  color: #ffffff;
  letter-spacing: 2px;
  text-shadow: 0 0 20px var(--cyan-glow), 0 0 40px rgba(0, 243, 255, 0.6);
  min-height: 3.5rem;
  text-transform: uppercase;
}

.lyrics-overlay.pulse .lyrics-main {
  animation: lyricGlow 0.35s ease-out;
}

@keyframes lyricGlow {
  0% { transform: scale(1.05); text-shadow: 0 0 40px #ffffff, 0 0 60px var(--cyan-glow); }
  100% { transform: scale(1); }
}

/* =========================================================================
   INTERACTIVE LYRICS TIMELINE DRAWER (CALIBRATION / JUMP TRAY)
   ========================================================================= */
.lyrics-drawer {
  position: absolute;
  top: 80px;
  right: 2rem;
  width: 360px;
  max-height: calc(100vh - 220px);
  background: rgba(3, 8, 20, 0.92);
  border: 1px solid var(--panel-border);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.9), 0 0 15px rgba(0, 243, 255, 0.2);
  backdrop-filter: blur(16px);
  z-index: 50;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  clip-path: polygon(15px 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%, 0 15px);
}

.lyrics-drawer.hidden {
  opacity: 0;
  transform: translateX(50px);
  pointer-events: none;
}

.drawer-header {
  padding: 0.8rem 1.2rem;
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 243, 255, 0.08);
}

.drawer-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--cyan-bright);
  letter-spacing: 1.5px;
}

.drawer-close {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  font-size: 1.1rem;
  transition: color 0.2s;
}

.drawer-close:hover {
  color: #ffffff;
}

.drawer-list {
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.drawer-list::-webkit-scrollbar {
  width: 5px;
}

.drawer-list::-webkit-scrollbar-thumb {
  background: var(--cyan-glow);
}

.cue-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: all 0.2s;
  border-radius: 2px;
}

.cue-item:hover {
  background: rgba(0, 243, 255, 0.12);
  border-color: var(--cyan-dim);
}

.cue-item.active {
  background: rgba(0, 243, 255, 0.25);
  border-color: var(--cyan-glow);
  box-shadow: 0 0 10px var(--cyan-dim);
}

.cue-time {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--amber-glow);
  min-width: 44px;
}

.cue-text {
  font-family: var(--font-sub);
  font-size: 0.85rem;
  color: rgba(209, 247, 255, 0.9);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  text-transform: uppercase;
}

.cue-item.active .cue-text {
  color: #ffffff;
  font-weight: 700;
  text-shadow: 0 0 8px var(--cyan-glow);
}

/* =========================================================================
   BOTTOM MASTER PLAYBACK CONTROLS & HUD
   ========================================================================= */
.bottom-hud {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  padding: 1.2rem 1.8rem;
  backdrop-filter: blur(16px);
  box-shadow: 0 -5px 30px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 243, 255, 0.1);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* Scrubber Progress Bar */
.scrubber-container {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  width: 100%;
}

.time-display {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--cyan-glow);
  letter-spacing: 1px;
  min-width: 80px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.progress-track {
  flex: 1;
  height: 8px;
  background: rgba(0, 243, 255, 0.1);
  border: 1px solid var(--panel-border);
  position: relative;
  cursor: pointer;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--cyan-glow), #ffffff);
  box-shadow: 0 0 12px var(--cyan-glow);
  position: relative;
  transition: width 0.08s linear;
}

/* Bottom Controls Row */
.controls-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.playback-controls {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.play-circle-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(0, 243, 255, 0.15);
  border: 2px solid var(--cyan-glow);
  box-shadow: 0 0 15px var(--cyan-glow), inset 0 0 10px var(--cyan-glow);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.play-circle-btn:hover {
  transform: scale(1.08);
  background: rgba(0, 243, 255, 0.35);
  box-shadow: 0 0 25px var(--cyan-glow), inset 0 0 15px #ffffff;
}

.volume-container {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--cyan-bright);
}

.volume-slider {
  -webkit-appearance: none;
  width: 90px;
  height: 4px;
  background: rgba(0, 243, 255, 0.25);
  outline: none;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan-glow);
  box-shadow: 0 0 8px var(--cyan-glow);
  cursor: pointer;
}

/* Winamp Style Oscilloscope Box in Bottom Right */
.oscilloscope-box {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.oscilloscope-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--cyan-glow);
  letter-spacing: 1px;
}

#oscilloscope-canvas {
  width: 180px;
  height: 48px;
  border: 1px solid var(--cyan-dim);
  background: rgba(2, 6, 17, 0.8);
  box-shadow: inset 0 0 10px rgba(0, 243, 255, 0.15);
}

/* =========================================================================
   START / SPLASH SCREEN MODAL (TRON BOOT SEQUENCE)
   ========================================================================= */
.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(2, 6, 18, 0.85);
  backdrop-filter: blur(20px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.modal-backdrop.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.terminal-card {
  width: 90%;
  max-width: 640px;
  background: rgba(4, 11, 26, 0.95);
  border: 2px solid var(--cyan-glow);
  box-shadow: 0 0 40px rgba(0, 243, 255, 0.3), inset 0 0 30px rgba(0, 243, 255, 0.08);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  clip-path: polygon(25px 0, 100% 0, 100% calc(100% - 25px), calc(100% - 25px) 100%, 0 100%, 0 25px);
}

.terminal-header {
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 1rem;
}

.terminal-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--amber-glow);
  letter-spacing: 2px;
}

.terminal-h1 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: #ffffff;
  text-shadow: 0 0 15px var(--cyan-glow);
  margin-top: 0.3rem;
}

.terminal-body {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(209, 247, 255, 0.85);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  background: rgba(0, 243, 255, 0.05);
  padding: 1rem;
  border-left: 2px solid var(--cyan-glow);
  margin: 0.5rem 0;
}

.spec-item span {
  color: var(--cyan-bright);
  font-weight: bold;
}

.modal-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.modal-play-btn {
  flex: 1;
  background: var(--cyan-glow);
  color: #020612;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 900;
  padding: 1rem;
  border: none;
  cursor: pointer;
  letter-spacing: 2px;
  box-shadow: 0 0 25px var(--cyan-glow);
  transition: all 0.2s ease;
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

.modal-play-btn:hover {
  background: #ffffff;
  box-shadow: 0 0 35px #ffffff, 0 0 50px var(--cyan-glow);
  transform: translateY(-2px);
}

.modal-fs-btn {
  background: rgba(0, 243, 255, 0.1);
  border: 1px solid var(--cyan-glow);
  color: var(--cyan-bright);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 1rem 1.4rem;
  cursor: pointer;
  letter-spacing: 1.5px;
  transition: all 0.2s ease;
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

.modal-fs-btn:hover {
  background: rgba(0, 243, 255, 0.25);
  color: #ffffff;
  box-shadow: 0 0 15px var(--cyan-glow);
}

/* Fallback notice if opened directly via file:// */
.file-notice {
  display: none;
  background: rgba(255, 0, 119, 0.15);
  border: 1px solid var(--magenta-glow);
  padding: 0.8rem;
  font-size: 0.85rem;
  color: #ffb3d9;
}

.file-btn {
  display: inline-block;
  margin-top: 0.5rem;
  background: var(--magenta-glow);
  color: #ffffff;
  padding: 6px 12px;
  cursor: pointer;
  font-weight: bold;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .mode-selector { display: none; }
  .lyrics-main { font-size: 1.5rem; }
  .oscilloscope-box { display: none; }
  #ui-overlay { padding: 1rem; }
}