:root {
  --bg-color: #02010a;
  --text-main: #f0f4f8;
  --text-muted: #8c9baf;
  --accent-color: #4facfe;
  --accent-glow: 0 0 15px rgba(79, 172, 254, 0.6);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
  position: relative;
}

canvas#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

.screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  pointer-events: none;
  transition: opacity 1s ease;
}

.screen.active {
  opacity: 1;
  pointer-events: all;
  position: relative;
}

.content-wrapper {
  max-width: 1200px;
  width: 90%;
  margin: 0 auto;
  text-align: center;
  z-index: 10;
}

.split-layout {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 4rem;
  margin-top: 5vh;
  margin-bottom: 5vh;
}

@media (max-width: 900px) {
  .split-layout {
    flex-direction: column;
  }
}

.album-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 5rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  text-transform: uppercase;
  background: linear-gradient(to right, #fff, #4facfe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 3rem;
  letter-spacing: 2px;
}

.btn {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--accent-color);
  padding: 15px 40px;
  font-size: 1.1rem;
  font-family: 'Orbitron', sans-serif;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--accent-glow);
  border-radius: 30px;
  text-decoration: none;
  display: inline-block;
}

.btn:hover {
  background: var(--accent-color);
  color: #000;
  box-shadow: 0 0 25px var(--accent-color);
}

.album-art-container {
  flex: 1;
  display: flex;
  justify-content: center;
}

.album-art {
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle at center, #1a2a40 0%, #050a10 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 50px rgba(79, 172, 254, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: slowSpin 60s linear infinite;
  overflow: hidden;
}

@keyframes slowSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.art-placeholder h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 300;
  letter-spacing: 5px;
  opacity: 0.5;
  animation: reverseSpin 60s linear infinite;
}

@keyframes reverseSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

.tracklist-container {
  flex: 1;
  text-align: left;
}

.tracklist-container h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--accent-color);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 10px;
}

.tracklist {
  list-style: none;
}

.track-item {
  margin-bottom: 1rem;
  transform-origin: left center;
}

.track-item a {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-muted);
  padding: 10px;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
}

.track-item a::before {
  content: '';
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-color);
  opacity: 0;
  transition: all 0.3s ease;
}

.track-item:hover a::before {
  opacity: 1;
  box-shadow: var(--accent-glow);
}

.track-item:hover a {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
  padding-left: 20px;
}

.track-num {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  margin-right: 1.5rem;
  opacity: 0.6;
}

.track-title {
  font-size: 1.2rem;
  font-weight: 300;
}

/* Song Page Specifics */
.song-page {
  background: var(--bg-color);
}

.top-nav {
  position: fixed;
  top: 20px;
  left: 30px;
  z-index: 100;
}

.song-content-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 100px 20px;
  position: relative;
  z-index: 10;
}

.section {
  margin-bottom: 80px;
  opacity: 0;
  transform: translateY(30px);
}

.song-header {
  text-align: center;
  margin-bottom: 100px;
}

.song-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4rem;
  background: linear-gradient(to right, #fff, var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
}

h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--accent-color);
}

p {
  line-height: 1.8;
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.audio-player-mockup {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all 0.3s ease;
}

.audio-player-mockup:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(79, 172, 254, 0.4);
  box-shadow: 0 0 20px rgba(79, 172, 254, 0.1);
}

.track-info {
  flex: 1;
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}

.progress-bar {
  flex: 2;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  position: relative;
}

.progress {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0%;
  background: var(--accent-color);
  border-radius: 2px;
  box-shadow: var(--accent-glow);
}

.controls {
  cursor: pointer;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  color: var(--accent-color);
}

.lyrics-sheet {
  border-left: 2px solid rgba(79, 172, 254, 0.3);
  padding-left: 30px;
  font-style: italic;
}

.lyric-line {
  color: #ccc;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.lyric-line.crossed {
  text-decoration: line-through;
  opacity: 0.4;
}

.bts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.bts-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.bts-card:hover {
  transform: translateY(-5px);
  border-color: rgba(79, 172, 254, 0.3);
}

.img-placeholder {
  height: 150px;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.3);
  font-family: 'Orbitron', sans-serif;
}

.bts-card p {
  padding: 15px;
  font-size: 0.9rem;
  margin: 0;
  text-align: center;
}

.song-footer {
  text-align: center;
  margin-top: 100px;
}