@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Light mode variables */
  --bg-primary: #f8fafc;
  --bg-secondary: rgba(255, 255, 255, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.25);
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --accent-primary: #3b82f6;
  --accent-secondary: #8b5cf6;
  --border-glass: rgba(255, 255, 255, 0.18);
  --shadow-glass: 0 8px 32px rgba(31, 38, 135, 0.37);
  --aurora-1: #ff6b6b;
  --aurora-2: #4ecdc4;
  --aurora-3: #45b7d1;
  --aurora-4: #f9ca24;
  --aurora-5: #6c5ce7;
}

[data-theme="dark"] {
  /* Dark mode variables */
  --bg-primary: #0f172a;
  --bg-secondary: rgba(15, 23, 42, 0.8);
  --bg-glass: rgba(15, 23, 42, 0.3);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --accent-primary: #60a5fa;
  --accent-secondary: #a78bfa;
  --border-glass: rgba(255, 255, 255, 0.125);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.3);
  --aurora-1: #ff5757;
  --aurora-2: #5ac8c8;
  --aurora-3: #4fb3d9;
  --aurora-4: #feca57;
  --aurora-5: #6a5acd;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

/* Glassmorphism effect */
.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  box-shadow: var(--shadow-glass);
}

.glass-strong {
  background: var(--bg-secondary);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  box-shadow: var(--shadow-glass);
}

/* Aurora background animation */
.aurora-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.aurora-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
  animation: float 8s ease-in-out infinite;
}

.aurora-orb:nth-child(1) {
  background: linear-gradient(45deg, var(--aurora-1), var(--aurora-2));
  width: 300px;
  height: 300px;
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.aurora-orb:nth-child(2) {
  background: linear-gradient(45deg, var(--aurora-3), var(--aurora-4));
  width: 250px;
  height: 250px;
  top: 60%;
  right: 20%;
  animation-delay: 2s;
  animation-duration: 10s;
}

.aurora-orb:nth-child(3) {
  background: linear-gradient(45deg, var(--aurora-5), var(--aurora-1));
  width: 200px;
  height: 200px;
  bottom: 20%;
  left: 50%;
  animation-delay: 4s;
  animation-duration: 12s;
}

.aurora-orb:nth-child(4) {
  background: linear-gradient(45deg, var(--aurora-2), var(--aurora-5));
  width: 180px;
  height: 180px;
  top: 30%;
  right: 10%;
  animation-delay: 6s;
  animation-duration: 9s;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

/* Button styles */
.btn {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 12px 20px;
  font-weight: 500;
}

.btn:hover {
  background: var(--accent-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

.btn-icon {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-icon:hover {
  background: var(--accent-primary);
  transform: scale(1.1);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

/* Music player container */
.music-player {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  padding-bottom: 140px; /* Space for fixed controls */
}

/* Track list styles */
.track-list {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 20px;
  margin-bottom: 20px;
}

.track-item {
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.track-item:hover {
  background: var(--bg-glass);
  border-color: var(--border-glass);
  transform: translateX(5px);
}

.track-item.active {
  background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
  color: white;
}

/* Player controls */
.player-controls {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-glass);
  backdrop-filter: blur(40px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-glass);
}

/* Progress bar */
.progress-bar {
  width: 300px;
  height: 6px;
  background: var(--bg-glass);
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 3px;
  transition: width 0.1s ease;
}

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

.volume-slider {
  width: 100px;
  height: 6px;
  background: var(--bg-glass);
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
}

/* Responsive design */
@media (max-width: 768px) {
  .music-player {
    padding: 15px;
    padding-bottom: 100px;
  }
  
  .player-controls {
    position: fixed;
    bottom: calc(20px + env(safe-area-inset-bottom));
    left: 20px;
    right: 20px;
    width: auto;
    max-width: calc(100vw - 40px);
    height: auto;
    transform: none;
    background: var(--bg-glass);
    backdrop-filter: blur(40px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 12px 16px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    box-shadow: var(--shadow-glass);
    z-index: 1000;
    overflow: hidden;
    min-height: 60px;
    transition: bottom 0.3s ease;
  }
  
  /* Previous button */
  .player-controls > button:first-child {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
  
  /* Play/Pause button */
  .player-controls > button:nth-child(2) {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
  }
  
  /* Next button */
  .player-controls > button:nth-child(3) {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
  
  /* Progress bar */
  .progress-bar {
    flex: 1;
    min-width: 60px;
    max-width: 120px;
    height: 4px;
    margin: 0 8px;
  }
  
  /* Time display */
  .player-controls > div:nth-child(5) {
    flex-shrink: 0;
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    min-width: 70px;
    text-align: center;
  }
  
  /* Volume control */
  .volume-control {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 80px;
  }
  
  .volume-control span {
    font-size: 0.8rem;
  }
  
  .volume-slider {
    width: 50px;
    height: 4px;
  }
  
  .aurora-orb {
    filter: blur(60px);
  }
  
  /* Dynamic viewport handling for mobile browser bars */
  .player-controls.browser-bars-visible {
    bottom: calc(20px + env(safe-area-inset-bottom) + var(--browser-bar-height, 0px));
  }
  
  /* Support for different viewport units */
  @supports (height: 100dvh) {
    .player-controls {
      bottom: calc(100dvh - 100vh + 20px + env(safe-area-inset-bottom));
    }
  }
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-secondary);
}