/* === BLUEMANIA — Black & Blue === */

:root {
  --black: #0a0a0f;
  --deep: #0d0d18;
  --surface: #111122;
  --border: #1a1a33;
  --blue-dark: #0a1628;
  --blue: #1a5fff;
  --blue-bright: #3b82f6;
  --blue-glow: #2563eb;
  --blue-pale: #93c5fd;
  --text: #c8ccd4;
  --text-dim: #6b7280;
  --text-bright: #e5e7eb;
  --white: #f0f2f5;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--black);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  line-height: 1.6;
}

/* === Atmosphere === */

.noise {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(26, 95, 255, 0.08), transparent 70%);
  top: -200px;
  right: -100px;
}

.glow-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.05), transparent 70%);
  bottom: 10%;
  left: -150px;
}

/* === Layout === */

header, main, footer {
  position: relative;
  z-index: 1;
}

header {
  display: none;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* === Hero === */

.hero {
  padding: 10rem 0 8rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-bg::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 50%;
  height: 100%;
  background: url('art/bg-skull.jpg') left center/cover no-repeat;
  opacity: 0.65;
  filter: saturate(0.35) brightness(0.8);
  mask-image: linear-gradient(to right, rgba(0,0,0,1) 0%, rgba(0,0,0,0.5) 60%, rgba(0,0,0,0) 100%);
  -webkit-mask-image: linear-gradient(to right, rgba(0,0,0,1) 0%, rgba(0,0,0,0.5) 60%, rgba(0,0,0,0) 100%);
}

.hero-bg::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  width: 50%;
  height: 100%;
  background: url('art/bg-deer.jpg') right center/cover no-repeat;
  opacity: 0.65;
  filter: saturate(0.45) brightness(0.8);
  mask-image: linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,0.5) 60%, rgba(0,0,0,0) 100%);
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,0.5) 60%, rgba(0,0,0,0) 100%);
}

.hero h1 {
  position: relative;
  z-index: 1;
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 700;
  letter-spacing: 0.25em;
  line-height: 1;
  background: linear-gradient(
    90deg,
    rgba(255,255,255,0.6) 0%,
    rgba(255,255,255,1) 15%,
    rgba(180,200,230,0.7) 30%,
    rgba(255,255,255,1) 45%,
    rgba(160,190,220,0.5) 60%,
    rgba(255,255,255,0.9) 75%,
    rgba(200,210,230,0.6) 90%,
    rgba(255,255,255,1) 100%
  );
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: smoke 8s ease-in-out infinite;
  filter: drop-shadow(0 0 80px rgba(26, 95, 255, 0.3)) drop-shadow(0 0 160px rgba(26, 95, 255, 0.1));
}

@keyframes smoke {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-subtitle {
  position: absolute;
  bottom: 3rem;
  left: 0;
  right: 0;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  padding: 0 4rem;
  font-size: clamp(0.8rem, 1.5vw, 1.1rem);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
}

@media (max-width: 768px) {
  .hero-subtitle { padding: 0 1.5rem; }
}

/* === Section Headings === */

h2 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 2.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

/* === Albums Grid === */

.albums {
  padding: 4rem 0;
}

.album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2rem;
}

.album-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.album-card:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
  box-shadow: 0 8px 40px rgba(26, 95, 255, 0.1);
}

.album-card .art {
  aspect-ratio: 1;
  background: var(--blue-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.album-card .art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.album-card .art .placeholder {
  font-size: 3rem;
  color: var(--blue);
  opacity: 0.3;
}

.album-card .info {
  padding: 1.2rem;
}

.album-card .album-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}

.album-card .album-meta {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* === Album Detail === */

.album-detail {
  padding: 4rem 0;
}

.back-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.8rem;
  margin-bottom: 2rem;
  transition: color 0.2s, border-color 0.2s;
}

.back-btn:hover {
  color: var(--blue-bright);
  border-color: var(--blue);
}

.album-header {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  margin-bottom: 3rem;
}

.album-header .detail-art {
  width: 280px;
  height: 280px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--blue-dark);
  border: 1px solid var(--border);
}

.album-header .detail-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.album-header .detail-info {
  padding-top: 1rem;
}

.album-header .detail-info h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.album-header .detail-info .detail-year {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
}

.album-header .detail-info .detail-desc {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.7;
  max-width: 450px;
}

.tracklist {
  display: flex;
  flex-direction: column;
}

.track {
  display: flex;
  align-items: center;
  padding: 0.9rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s;
  gap: 1rem;
}

.track:hover {
  background: var(--surface);
}

.track.playing {
  background: var(--surface);
  border-left: 2px solid var(--blue-bright);
}

.track .track-num {
  font-size: 0.8rem;
  color: var(--text-dim);
  width: 2rem;
  text-align: right;
  flex-shrink: 0;
}

.track .track-title {
  font-size: 0.9rem;
  color: var(--text-bright);
  flex: 1;
}

.track .track-duration {
  font-size: 0.8rem;
  color: var(--text-dim);
  flex-shrink: 0;
}

.track:hover .track-num {
  color: var(--blue-bright);
}

/* === About === */

.about {
  padding: 4rem 0 2rem;
}

.about-content {
  max-width: 640px;
  margin: 0 auto;
}

.about p {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 1.2rem;
  font-weight: 300;
}

.about p:first-child {
  font-size: 1rem;
  color: var(--text-bright);
  font-weight: 400;
}

.about p:last-child {
  color: var(--text-dim);
  font-style: italic;
  margin-top: 1.5rem;
  margin-bottom: 0;
}

.about a {
  color: var(--blue-bright);
  text-decoration: none;
  transition: color 0.2s;
}

.about a:hover {
  color: var(--blue-pale);
}

.about em {
  color: var(--blue-pale);
  font-style: italic;
}

/* === Footer === */

footer {
  padding: 3rem;
  border-top: 1px solid var(--border);
  text-align: center;
  margin-top: 4rem;
}

.footer-links {
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s;
  margin: 0 1rem;
}

.footer-links a:hover {
  color: var(--blue-bright);
}

.copyright {
  font-size: 0.7rem;
  color: var(--text-dim);
  opacity: 0.5;
}

/* === Player Bar === */

.player {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--deep);
  border-top: 1px solid var(--border);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.player-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 200px;
}

.player-info img {
  width: 40px;
  height: 40px;
  border-radius: 4px;
  object-fit: cover;
  background: var(--blue-dark);
}

.player-title {
  font-size: 0.85rem;
  color: var(--text-bright);
  font-weight: 500;
}

.player-album {
  font-size: 0.7rem;
  color: var(--text-dim);
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ctrl-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.3rem;
  transition: color 0.2s;
}

.ctrl-btn:hover { color: var(--white); }

.play-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--blue-bright);
}

.play-btn:hover {
  background: var(--blue);
  color: var(--white);
}

.player-progress {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.player-progress span {
  font-size: 0.7rem;
  color: var(--text-dim);
  min-width: 3rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.player-progress input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}

.player-progress input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue-bright);
  cursor: pointer;
}

.player-volume {
  width: 100px;
}

.player-volume input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}

.player-volume input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue-pale);
  cursor: pointer;
}

/* === Mobile === */

@media (max-width: 768px) {
  header { padding: 1.5rem; }
  main { padding: 0 1.5rem; }
  .hero { padding: 5rem 0 3rem; }
  .hero h1 { letter-spacing: 0.08em; }
  .album-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; }

  .album-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .album-header .detail-art { width: 220px; height: 220px; }
  .album-header .detail-info .detail-desc { max-width: 100%; }

  .player {
    flex-wrap: wrap;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
  }
  .player-info { min-width: unset; flex: 1; }
  .player-progress { order: 3; width: 100%; }
  .player-volume { display: none; }
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* === Selection === */
::selection {
  background: rgba(26, 95, 255, 0.3);
  color: var(--white);
}