/* ═══════════════════════════════════════════════════════════════════════════
   MEMBRANE PLAYER - PROMPT AI Rock Band
   "Touch the sound. Feel the void."
   ═══════════════════════════════════════════════════════════════════════════ */

/* CSS Custom Properties - The Membrane Palette */
:root {
  --membrane-void: rgba(0, 0, 0, 0.95);
  --membrane-glass: rgba(10, 10, 15, 0.85);
  --membrane-inactive: #1a1a1f;
  --membrane-dim: #2a2a35;
  --membrane-cursor: #ff0044;
  --membrane-glow-primary: #00ffff;
  --membrane-glow-secondary: #ff00ff;
  --membrane-text: #e0e0e0;
  --membrane-text-dim: #666;
  --membrane-border: rgba(255, 255, 255, 0.1);

  /* Track accent colors */
  --track-1-color: #ff3366;
  --track-2-color: #00ffcc;
  --track-3-color: #ff9900;
  --track-4-color: #9966ff;
  --track-5-color: #ff00ff;
  --track-6-color: #00ff66;
  --track-7-color: #ffcc00;
  --track-8-color: #ff0000;
  --track-9-color: #0099ff;
  --track-10-color: #ffffff;
}

/* ═══════════════════════════════════════════════════════════════════════════
   KEYFRAME ANIMATIONS
   ═══════════════════════════════════════════════════════════════════════════ */

@keyframes membrane-pulse {
  0%, 100% {
    transform: scaleY(1);
    filter: brightness(1);
  }
  50% {
    transform: scaleY(1.02);
    filter: brightness(1.1);
  }
}

@keyframes cursor-blink {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 10px var(--membrane-cursor), 0 0 20px var(--membrane-cursor);
  }
  50% {
    opacity: 0.3;
    box-shadow: 0 0 5px var(--membrane-cursor);
  }
}

@keyframes glow-pulse {
  0%, 100% {
    filter: drop-shadow(0 0 5px currentColor);
  }
  50% {
    filter: drop-shadow(0 0 15px currentColor) drop-shadow(0 0 30px currentColor);
  }
}

@keyframes glitch-1 {
  0% { clip-path: inset(0 0 100% 0); }
  5% { clip-path: inset(40% 0 30% 0); }
  10% { clip-path: inset(80% 0 5% 0); }
  15% { clip-path: inset(10% 0 60% 0); }
  20% { clip-path: inset(0 0 100% 0); }
  100% { clip-path: inset(0 0 100% 0); }
}

@keyframes glitch-2 {
  0% { clip-path: inset(0 0 100% 0); transform: translateX(0); }
  5% { clip-path: inset(60% 0 20% 0); transform: translateX(-5px); }
  10% { clip-path: inset(20% 0 50% 0); transform: translateX(5px); }
  15% { clip-path: inset(70% 0 10% 0); transform: translateX(-3px); }
  20% { clip-path: inset(0 0 100% 0); transform: translateX(0); }
  100% { clip-path: inset(0 0 100% 0); transform: translateX(0); }
}

@keyframes redaction-slide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes static-noise {
  0% { background-position: 0 0; }
  100% { background-position: 100% 100%; }
}

@keyframes expand-in {
  from {
    max-height: 60px;
    opacity: 0.8;
  }
  to {
    max-height: 500px;
    opacity: 1;
  }
}

@keyframes collapse-out {
  from {
    max-height: 500px;
    opacity: 1;
  }
  to {
    max-height: 60px;
    opacity: 0.8;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   MEMBRANE PLAYER CONTAINER
   ═══════════════════════════════════════════════════════════════════════════ */

.membrane-player {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Monaco', 'Consolas', monospace;

  /* Glass morphism */
  background: var(--membrane-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);

  /* Border and shadow */
  border-top: 1px solid var(--membrane-border);
  box-shadow:
    0 -10px 40px rgba(0, 0, 0, 0.5),
    0 -2px 20px rgba(0, 255, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);

  /* Transitions */
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.membrane-player.collapsed {
  max-height: 60px;
}

.membrane-player.expanded {
  max-height: 500px;
}

/* Glitch effect overlay */
.membrane-player.glitching::before,
.membrane-player.glitching::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: inherit;
  pointer-events: none;
}

.membrane-player.glitching::before {
  animation: glitch-1 0.3s ease-out;
  color: #ff0000;
  mix-blend-mode: multiply;
}

.membrane-player.glitching::after {
  animation: glitch-2 0.3s ease-out;
  color: #00ffff;
  mix-blend-mode: screen;
}

/* ═══════════════════════════════════════════════════════════════════════════
   COLLAPSE TOGGLE BAR
   ═══════════════════════════════════════════════════════════════════════════ */

.membrane-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  cursor: pointer;
  background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 100%);
  border-bottom: 1px solid var(--membrane-border);
  transition: all 0.2s ease;
  user-select: none;
}

.membrane-toggle:hover {
  background: linear-gradient(180deg, rgba(255,255,255,0.06) 0%, transparent 100%);
}

.membrane-toggle-left {
  display: flex;
  align-items: center;
  gap: 15px;
}

.membrane-now-playing {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.membrane-now-playing-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--membrane-text-dim);
}

.membrane-now-playing-title {
  font-size: 14px;
  color: var(--membrane-text);
  font-weight: 500;
  transition: color 0.3s ease;
}

.membrane-toggle-arrow {
  font-size: 12px;
  color: var(--membrane-text-dim);
  transition: transform 0.3s ease;
}

.membrane-player.expanded .membrane-toggle-arrow {
  transform: rotate(180deg);
}

/* Mini visualizer in collapsed state */
.membrane-mini-viz {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 20px;
}

.membrane-mini-bar {
  width: 3px;
  height: 100%;
  background: var(--membrane-glow-primary);
  border-radius: 2px;
  transform-origin: bottom;
  transition: transform 0.1s ease;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MAIN CONTENT AREA
   ═══════════════════════════════════════════════════════════════════════════ */

.membrane-content {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 20px;
  padding: 20px;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.membrane-player.collapsed .membrane-content {
  opacity: 0;
  pointer-events: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   TRACK LIST
   ═══════════════════════════════════════════════════════════════════════════ */

.membrane-tracklist {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 300px;
  overflow-y: auto;
  padding-right: 10px;

  /* Custom scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--membrane-dim) transparent;
}

.membrane-tracklist::-webkit-scrollbar {
  width: 4px;
}

.membrane-tracklist::-webkit-scrollbar-track {
  background: transparent;
}

.membrane-tracklist::-webkit-scrollbar-thumb {
  background: var(--membrane-dim);
  border-radius: 2px;
}

.membrane-track {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  cursor: pointer;
  border-radius: 4px;
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.membrane-track:hover {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--membrane-border);
}

.membrane-track.active {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--membrane-glow-primary);
  box-shadow:
    0 0 10px rgba(0, 255, 255, 0.1),
    inset 0 0 20px rgba(0, 255, 255, 0.02);
}

.membrane-track.active .membrane-track-title {
  color: var(--membrane-glow-primary);
  text-shadow: 0 0 10px currentColor;
}

.membrane-track-number {
  font-size: 11px;
  color: var(--membrane-text-dim);
  min-width: 20px;
  font-variant-numeric: tabular-nums;
}

.membrane-track-title {
  font-size: 12px;
  color: var(--membrane-text);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

.membrane-track-duration {
  font-size: 10px;
  color: var(--membrane-text-dim);
  font-variant-numeric: tabular-nums;
}

/* Accent dot for active track */
.membrane-track.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: currentColor;
  border-radius: 0 2px 2px 0;
  animation: glow-pulse 1.5s ease-in-out infinite;
}

/* ═══════════════════════════════════════════════════════════════════════════
   WAVEFORM DISPLAY
   ═══════════════════════════════════════════════════════════════════════════ */

.membrane-waveform-area {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.membrane-waveform-container {
  position: relative;
  height: 120px;
  background: var(--membrane-inactive);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--membrane-border);
  transition: border-color 0.3s ease;
}

.membrane-waveform-container:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.membrane-waveform-container:hover .membrane-hover-time {
  opacity: 1;
}

/* Canvas layers */
.membrane-waveform-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.membrane-waveform-inactive {
  z-index: 1;
}

.membrane-waveform-active {
  z-index: 2;
  clip-path: inset(0 100% 0 0);
}

/* Cursor / playhead */
.membrane-cursor {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--membrane-cursor);
  z-index: 10;
  transform: translateX(-50%);
  animation: cursor-blink 1s ease-in-out infinite;
  pointer-events: none;
}

.membrane-cursor::before,
.membrane-cursor::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-style: solid;
}

/* Top triangle (band symbol) */
.membrane-cursor::before {
  top: 0;
  border-width: 8px 5px 0 5px;
  border-color: var(--membrane-cursor) transparent transparent transparent;
}

/* Bottom triangle */
.membrane-cursor::after {
  bottom: 0;
  border-width: 0 5px 8px 5px;
  border-color: transparent transparent var(--membrane-cursor) transparent;
}

/* Hover time indicator */
.membrane-hover-time {
  position: absolute;
  top: 10px;
  padding: 4px 8px;
  background: var(--membrane-void);
  border: 1px solid var(--membrane-border);
  border-radius: 4px;
  font-size: 11px;
  color: var(--membrane-text);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 20;
  transform: translateX(-50%);
}

/* Membrane organic effect - breathing overlay */
.membrane-organic-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    ellipse at center,
    transparent 0%,
    rgba(0, 0, 0, 0.3) 100%
  );
  pointer-events: none;
  z-index: 5;
  animation: membrane-pulse 3s ease-in-out infinite;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CONTROLS
   ═══════════════════════════════════════════════════════════════════════════ */

.membrane-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
}

.membrane-transport {
  display: flex;
  align-items: center;
  gap: 15px;
}

.membrane-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--membrane-border);
  border-radius: 50%;
  color: var(--membrane-text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.membrane-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--membrane-glow-primary);
  color: var(--membrane-glow-primary);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
}

.membrane-btn:active {
  transform: scale(0.95);
}

.membrane-btn-play {
  width: 50px;
  height: 50px;
}

.membrane-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.membrane-btn-play svg {
  width: 20px;
  height: 20px;
}

/* Time display */
.membrane-time {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--membrane-text-dim);
  font-variant-numeric: tabular-nums;
}

.membrane-time-current {
  color: var(--membrane-text);
}

.membrane-time-separator {
  opacity: 0.5;
}

/* Volume control */
.membrane-volume {
  display: flex;
  align-items: center;
  gap: 10px;
}

.membrane-volume-btn {
  width: 32px;
  height: 32px;
}

.membrane-volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 4px;
  background: var(--membrane-dim);
  border-radius: 2px;
  cursor: pointer;
}

.membrane-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  background: var(--membrane-text);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
}

.membrane-volume-slider::-webkit-slider-thumb:hover {
  background: var(--membrane-glow-primary);
  box-shadow: 0 0 10px var(--membrane-glow-primary);
}

.membrane-volume-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  background: var(--membrane-text);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CENSORED SHADOW SPECIAL EFFECTS
   ═══════════════════════════════════════════════════════════════════════════ */

.membrane-player.censored-mode {
  --membrane-glow-primary: #ff0000;
}

.membrane-player.censored-mode .membrane-waveform-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 15;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px,
    transparent 20px,
    rgba(0, 0, 0, 0.9) 20px,
    rgba(0, 0, 0, 0.9) 24px
  );
  animation: redaction-slide 8s linear infinite;
  mix-blend-mode: multiply;
}

.membrane-player.censored-mode .membrane-now-playing-title {
  position: relative;
}

.membrane-player.censored-mode .membrane-now-playing-title::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: #ff0000;
  animation: redaction-slide 2s linear infinite reverse;
}

/* Static noise effect for censored mode */
.membrane-redaction-bars {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 16;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.membrane-player.censored-mode .membrane-redaction-bars {
  opacity: 0.7;
}

.membrane-redaction-bar {
  position: absolute;
  background: #000;
  height: 4px;
  animation: redaction-slide 3s linear infinite;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MOBILE RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════ */

/* Mobile minimize button - always visible on mobile */
.membrane-minimize-btn {
  display: none;
  position: absolute;
  top: -40px;
  right: 15px;
  width: 36px;
  height: 36px;
  background: var(--membrane-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--membrane-border);
  border-radius: 50%;
  color: var(--membrane-text);
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.membrane-minimize-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--membrane-glow-primary);
}

.membrane-minimize-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  transition: transform 0.3s ease;
}

.membrane-player.collapsed .membrane-minimize-btn svg {
  transform: rotate(180deg);
}

@media (max-width: 768px) {
  .membrane-minimize-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .membrane-player {
    /* Start collapsed on mobile by default via JS */
  }

  .membrane-player.collapsed {
    max-height: 50px;
  }

  .membrane-player.collapsed .membrane-toggle {
    padding: 8px 15px;
  }

  .membrane-player.collapsed .membrane-now-playing-label {
    display: none;
  }

  .membrane-content {
    grid-template-columns: 1fr;
    gap: 15px;
    padding: 15px;
  }

  .membrane-tracklist {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 5px;
    max-height: 150px;
  }

  .membrane-track {
    padding: 8px;
  }

  .membrane-track-title {
    font-size: 11px;
  }

  .membrane-waveform-container {
    height: 80px;
  }

  .membrane-controls {
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
  }

  .membrane-volume {
    width: 100%;
    justify-content: center;
    padding-top: 10px;
  }

  .membrane-volume-slider {
    flex: 1;
    max-width: 150px;
  }

  .membrane-btn {
    width: 44px;
    height: 44px;
  }

  .membrane-btn-play {
    width: 54px;
    height: 54px;
  }

  /* Swipe hint on toggle */
  .membrane-toggle::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
  }
}

@media (max-width: 480px) {
  .membrane-tracklist {
    grid-template-columns: 1fr;
    max-height: 120px;
  }

  .membrane-toggle {
    padding: 10px 15px;
  }

  .membrane-now-playing-title {
    font-size: 12px;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .membrane-player.collapsed {
    max-height: 44px;
  }

  .membrane-player.collapsed .membrane-toggle {
    padding: 6px 12px;
  }

  .membrane-player.collapsed .membrane-mini-viz {
    height: 16px;
  }

  .membrane-player.collapsed .membrane-mini-bar {
    width: 2px;
  }

  .membrane-minimize-btn {
    top: -36px;
    width: 32px;
    height: 32px;
  }

  .membrane-minimize-btn svg {
    width: 14px;
    height: 14px;
  }
}

/* Ultra-compact collapsed state showing just play button and title */
.membrane-player.collapsed .membrane-toggle-arrow {
  display: none;
}

@media (max-width: 768px) {
  .membrane-player.collapsed .membrane-toggle-left {
    flex: 1;
  }

  /* Add tap hint */
  .membrane-player.collapsed .membrane-toggle::before {
    content: 'Tap to expand';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    color: var(--membrane-text-dim);
    opacity: 0.6;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   TOUCH INTERACTIONS
   ═══════════════════════════════════════════════════════════════════════════ */

@media (hover: none) {
  .membrane-waveform-container {
    /* Larger touch target */
    min-height: 100px;
  }

  .membrane-hover-time {
    display: none;
  }

  .membrane-btn:hover {
    background: transparent;
    border-color: var(--membrane-border);
    color: var(--membrane-text);
    box-shadow: none;
  }

  .membrane-btn:active {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--membrane-glow-primary);
    color: var(--membrane-glow-primary);
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   LOADING STATE
   ═══════════════════════════════════════════════════════════════════════════ */

.membrane-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 12px;
  color: var(--membrane-text-dim);
  text-transform: uppercase;
  letter-spacing: 3px;
}

.membrane-loading::after {
  content: '';
  animation: loading-dots 1.5s steps(4, end) infinite;
}

@keyframes loading-dots {
  0% { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
  100% { content: ''; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   ACCESSIBILITY
   ═══════════════════════════════════════════════════════════════════════════ */

.membrane-btn:focus-visible,
.membrane-track:focus-visible,
.membrane-toggle:focus-visible {
  outline: 2px solid var(--membrane-glow-primary);
  outline-offset: 2px;
}

.membrane-volume-slider:focus-visible {
  outline: 2px solid var(--membrane-glow-primary);
  outline-offset: 4px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .membrane-player,
  .membrane-player *,
  .membrane-player *::before,
  .membrane-player *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}