/* Hosanna Tunes - Enhanced Dark Theme */
:root {
  /* Brand Colors */
  --hosanna-blue: #60A5FA;
  --hosanna-purple: #A78BFA;
  --hosanna-gold: #FBBF24;
  --hosanna-cyan: #22D3EE;
  --hosanna-pink: #F472B6;
  --hosanna-green: #34D399;
  
  /* Dark Theme Colors */
  --bg-primary: #0F0F0F;
  --bg-secondary: #1A1A1A;
  --bg-tertiary: #262626;
  --bg-card: #1F1F1F;
  --bg-hover: #2A2A2A;
  --bg-accent: #0D1117;
  
  --text-primary: #FFFFFF;
  --text-secondary: #D1D5DB;
  --text-muted: #9CA3AF;
  --text-accent: var(--hosanna-blue);
  
  --border-color: #374151;
  --border-hover: #4B5563;
  --border-accent: #6366F1;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--hosanna-blue), var(--hosanna-purple));
  --gradient-secondary: linear-gradient(135deg, var(--hosanna-purple), var(--hosanna-pink));
  --gradient-accent: linear-gradient(135deg, var(--hosanna-cyan), var(--hosanna-blue));
  --gradient-gold: linear-gradient(135deg, var(--hosanna-gold), #F97316);
  --gradient-rainbow: linear-gradient(135deg, var(--hosanna-cyan), var(--hosanna-blue), var(--hosanna-purple), var(--hosanna-pink));
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 20px rgba(96, 165, 250, 0.4);
  --shadow-glow-purple: 0 0 20px rgba(167, 139, 250, 0.4);
  --shadow-glow-gold: 0 0 20px rgba(251, 191, 36, 0.4);
}

/* Global Styles */
* {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Enhanced Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 4px;
  border: 1px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gradient-secondary);
  box-shadow: var(--shadow-glow);
}

/* Glass Morphism Effect */
.glass {
  background: rgba(31, 31, 31, 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-light {
  background: rgba(31, 31, 31, 0.6);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Enhanced Cards */
.card-enhanced {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card-enhanced::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
  transition: left 0.6s ease;
}

.card-enhanced:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  border-color: var(--border-hover);
}

.card-enhanced:hover::before {
  left: 100%;
}

/* Audio Player Progress Bar - Enhanced */
.audio-progress {
  background: var(--gradient-primary);
  height: 6px;
  border-radius: 3px;
  transition: all 0.2s ease;
  position: relative;
}

.audio-progress::after {
  content: '';
  position: absolute;
  right: 0;
  top: -2px;
  width: 10px;
  height: 10px;
  background: var(--hosanna-blue);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(96, 165, 250, 0.6);
}

.audio-progress-container {
  background: var(--bg-tertiary);
  height: 6px;
  border-radius: 3px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.audio-progress-container:hover {
  height: 8px;
}

.audio-progress-container:hover .audio-progress::after {
  width: 12px;
  height: 12px;
  top: -3px;
}

/* Enhanced Buttons */
.btn-primary {
  background: var(--gradient-primary);
  border: none;
  color: white;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 12px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-secondary {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-weight: 500;
  padding: 10px 20px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Song Item - Enhanced */
.song-item {
  background: var(--bg-card);
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 16px;
  margin: 8px 0;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.song-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.1), transparent);
  transition: left 0.8s ease;
}

.song-item:hover {
  background: var(--bg-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
}

.song-item:hover::before {
  left: 100%;
}

.song-item.playing {
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.15), rgba(167, 139, 250, 0.15));
  border-color: var(--hosanna-blue);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.song-item.playing::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 0 2px 2px 0;
}

/* Category Buttons - Enhanced */
.category-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.category-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: var(--gradient-primary);
  transition: width 0.4s ease;
  z-index: 0;
}

.category-btn span {
  position: relative;
  z-index: 1;
}

.category-btn:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
}

.category-btn:hover::before {
  width: 4px;
}

.category-btn.active {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
  box-shadow: var(--shadow-glow);
  transform: translateX(8px);
}

.category-btn.active::before {
  width: 100%;
}

/* Playlist Items - Enhanced */
.playlist-item {
  background: var(--bg-card);
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.playlist-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(167, 139, 250, 0.1), transparent);
  transition: left 0.6s ease;
}

.playlist-item:hover {
  background: var(--bg-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
  border-color: var(--border-hover);
}

.playlist-item:hover::before {
  left: 100%;
}

/* Enhanced Lyrics Display */
.lyrics-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  max-height: 500px;
  overflow-y: auto;
  position: relative;
  backdrop-filter: blur(10px);
}

.lyrics-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 20px;
  background: linear-gradient(to bottom, var(--bg-card), transparent);
  z-index: 1;
  pointer-events: none;
}

.lyrics-container::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 20px;
  background: linear-gradient(to top, var(--bg-card), transparent);
  z-index: 1;
  pointer-events: none;
}

.lyric-line {
  padding: 12px 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  font-size: 18px;
  line-height: 1.6;
  position: relative;
}

.lyric-line.current {
  color: var(--hosanna-blue);
  font-weight: 700;
  font-size: 22px;
  transform: scale(1.05);
  text-shadow: 0 0 10px rgba(96, 165, 250, 0.5);
}

.lyric-line.current::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
  transform: translateX(-50%);
}

.lyric-line.past {
  color: var(--text-muted);
  opacity: 0.6;
  transform: scale(0.95);
}

.lyric-line.future {
  color: var(--text-secondary);
  opacity: 0.8;
}

/* Enhanced Player Controls */
.player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin: 32px 0;
}

.control-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.control-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.control-btn:hover {
  transform: scale(1.15);
  box-shadow: var(--shadow-lg);
}

.control-btn:hover::before {
  opacity: 0.2;
}

.control-btn i {
  position: relative;
  z-index: 1;
}

.control-btn.play {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  color: white;
  font-size: 32px;
  box-shadow: var(--shadow-glow);
}

.control-btn.play:hover {
  transform: scale(1.2);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

/* Volume Control - Enhanced */
.volume-control {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-tertiary);
  padding: 8px 16px;
  border-radius: 25px;
  border: 1px solid var(--border-color);
}

.volume-slider {
  width: 120px;
  height: 6px;
  background: var(--bg-primary);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--gradient-primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.volume-slider::-webkit-slider-thumb:hover {
  box-shadow: var(--shadow-glow);
  transform: scale(1.2);
}

/* Search Results - Enhanced */
.search-results {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(20px);
  max-height: 500px;
  overflow-y: auto;
  z-index: 1000;
}

.search-result-item {
  padding: 16px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.search-result-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.1), transparent);
  transition: left 0.6s ease;
}

.search-result-item:hover {
  background: var(--bg-hover);
  transform: translateX(4px);
}

.search-result-item:hover::before {
  left: 100%;
}

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

/* Loading Spinner - Enhanced */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px;
  gap: 20px;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--bg-tertiary);
  border-top: 4px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  position: relative;
}

.spinner::before {
  content: '';
  position: absolute;
  inset: -4px;
  border: 4px solid transparent;
  border-top: 4px solid var(--hosanna-purple);
  border-radius: 50%;
  animation: spin 1.5s linear infinite reverse;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Enhanced Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(96, 165, 250, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(96, 165, 250, 0.6);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-right {
  animation: slideInRight 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.pulse {
  animation: pulse 2s infinite;
}

.glow {
  animation: glow 2s infinite;
}

/* Header Enhancements */
.header-glass {
  background: rgba(15, 15, 15, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

/* Enhanced Input Fields */
.input-enhanced {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 12px;
  padding: 12px 16px;
  transition: all 0.3s ease;
  position: relative;
}

.input-enhanced:focus {
  outline: none;
  border-color: var(--hosanna-blue);
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2);
  background: var(--bg-tertiary);
}

.input-enhanced::placeholder {
  color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
  .card-enhanced {
    border-radius: 12px;
    margin: 8px 0;
  }
  
  .player-controls {
    gap: 20px;
  }
  
  .control-btn {
    width: 48px;
    height: 48px;
    font-size: 18px;
  }
  
  .control-btn.play {
    width: 72px;
    height: 72px;
    font-size: 28px;
  }
  
  .lyric-line {
    font-size: 16px;
    padding: 10px 0;
  }
  
  .lyric-line.current {
    font-size: 20px;
  }
  
  .volume-control {
    padding: 6px 12px;
  }
  
  .volume-slider {
    width: 80px;
  }
}

@media (max-width: 480px) {
  .song-item {
    padding: 12px;
    border-radius: 10px;
  }
  
  .category-btn, .playlist-item {
    padding: 10px 12px;
    border-radius: 10px;
  }
  
  .lyrics-container {
    padding: 16px;
    border-radius: 12px;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .song-item:hover,
  .category-btn:hover,
  .playlist-item:hover {
    border: 2px solid var(--hosanna-blue);
  }
  
  .category-btn {
    border-width: 2px;
  }
  
  .control-btn {
    border: 2px solid var(--border-color);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}