@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=DM+Sans:wght@400;500&display=swap');

:root {
  --bg-deep: #08060e;
  --bg-card: #110e1a;
  --bg-card-hover: #1a1528;
  --accent-primary: #a855f7;
  --accent-secondary: #6366f1;
  --accent-warm: #f472b6;
  --text-primary: #f0edf5;
  --text-secondary: #9b95a8;
  --text-muted: #5e5773;
  --gradient-hero: linear-gradient(135deg, #a855f7 0%, #6366f1 40%, #f472b6 100%);
  --border-subtle: rgba(168,85,247,0.1);
  --border-hover: rgba(168,85,247,0.25);
}

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; }

a { color: var(--accent-primary); text-decoration: none; }
a:hover { color: var(--accent-warm); }

.bg-glow {
  position: fixed;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at 30% 20%, rgba(168,85,247,0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 60%, rgba(99,102,241,0.06) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(244,114,182,0.05) 0%, transparent 40%);
  z-index: 0;
  pointer-events: none;
  animation: glowDrift 20s ease-in-out infinite alternate;
}

@keyframes glowDrift {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(-3%, 3%) rotate(2deg); }
}

/* App Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 48px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.app-header .logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
}

.app-header .logo a {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
  text-decoration: none;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary);
}

.nav-links .btn-primary {
  background: var(--gradient-hero);
  color: white;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 500;
  -webkit-text-fill-color: white;
}

.content-wrap { position: relative; z-index: 1; }

.page-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 48px 120px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 24px;
  transition: border-color 0.3s, transform 0.3s;
}

.card:hover {
  border-color: var(--border-hover);
}

/* Track Grid */
.track-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}

.track-card { cursor: pointer; }

.track-card:hover { transform: translateY(-4px); }

.track-card .cover {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(168,85,247,0.15), rgba(99,102,241,0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  margin-bottom: 12px;
}

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

.track-card .cover .play-overlay {
  position: absolute; inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(8,6,14,0.5);
  opacity: 0;
  transition: opacity 0.2s;
  font-size: 2rem;
  color: white;
}

.track-card:hover .play-overlay { opacity: 1; }

.track-card .track-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-card .track-artist {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.track-card .track-artist a {
  color: var(--text-secondary);
}

.track-card .track-artist a:hover {
  color: var(--accent-primary);
}

.track-card .track-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Genre Tags */
.genre-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(168,85,247,0.1);
  border: 1px solid rgba(168,85,247,0.2);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--accent-primary);
  letter-spacing: 0.5px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'DM Sans', sans-serif;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-hero);
  color: white;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover { border-color: var(--border-hover); }

/* Forms */
.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(17,14,26,0.8);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: 'DM Sans', sans-serif;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.form-group textarea { min-height: 100px; resize: vertical; }

.form-group select option { background: var(--bg-card); color: var(--text-primary); }

/* Upload Zone */
.upload-zone {
  border: 2px dashed var(--border-subtle);
  border-radius: 16px;
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent-primary);
  background: rgba(168,85,247,0.05);
}

.upload-zone .icon { font-size: 2.5rem; margin-bottom: 12px; }
.upload-zone .label { color: var(--text-secondary); font-size: 0.95rem; }
.upload-zone .sublabel { color: var(--text-muted); font-size: 0.8rem; margin-top: 4px; }

/* Page Header */
.page-header { margin-bottom: 40px; }

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.page-header .gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p { color: var(--text-secondary); font-size: 1.1rem; }

/* Artist Profile Header */
.artist-header {
  display: flex;
  gap: 32px;
  align-items: center;
  margin-bottom: 48px;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
}

.artist-avatar {
  width: 140px; height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  flex-shrink: 0;
  overflow: hidden;
  color: white;
}

.artist-avatar img { width: 100%; height: 100%; object-fit: cover; }

.artist-info h1 { font-size: 2rem; margin-bottom: 8px; }
.artist-info .bio { color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; }

.artist-stats {
  display: flex;
  gap: 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.artist-stats span strong { color: var(--text-primary); font-weight: 600; }

/* Filters */
.filters-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  align-items: center;
}

.filters-bar .search-input {
  flex: 1;
  min-width: 200px;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: 'DM Sans', sans-serif;
}

.filters-bar .search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.filter-chip {
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}

.filter-chip:hover, .filter-chip.active {
  background: rgba(168,85,247,0.1);
  border-color: rgba(168,85,247,0.3);
  color: var(--accent-primary);
}

/* Player Bar */
.player-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: rgba(17,14,26,0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  padding: 12px 48px;
  z-index: 100;
  display: none;
  align-items: center;
  gap: 16px;
}

.player-bar.active { display: flex; }

.player-cover {
  width: 48px; height: 48px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(168,85,247,0.3), rgba(99,102,241,0.3));
  flex-shrink: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.player-cover img { width: 100%; height: 100%; object-fit: cover; }

.player-info {
  min-width: 0;
  flex-shrink: 0;
  max-width: 200px;
}

.player-info .title {
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-info .artist { color: var(--text-secondary); font-size: 0.8rem; }

.player-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.player-controls button {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1.2rem;
  padding: 4px;
}

.player-controls .play-pause {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: white;
}

.player-progress {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
}

.player-progress .time {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 40px;
}

.progress-bar {
  flex: 1;
  height: 4px;
  background: rgba(168,85,247,0.15);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

.progress-bar .progress-fill {
  height: 100%;
  background: var(--gradient-hero);
  border-radius: 2px;
  width: 0%;
  transition: width 0.1s linear;
}

.volume-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.volume-control button {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1rem;
}

/* Auth Pages */
.auth-container { max-width: 440px; margin: 60px auto; }
.auth-container .card { padding: 40px; }
.auth-container h1 { font-size: 1.8rem; margin-bottom: 8px; }
.auth-container .subtitle { color: var(--text-secondary); margin-bottom: 32px; }
.auth-container .alt-action {
  text-align: center;
  margin-top: 24px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Upload Page */
.upload-container { max-width: 640px; margin: 0 auto; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 20px; font-size: 0.9rem; }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2); color: #ef4444; }
.alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.2); color: #22c55e; }

/* Loading & Empty States */
.loading { display: flex; justify-content: center; padding: 60px; color: var(--text-muted); }

.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.empty-state { text-align: center; padding: 80px 20px; color: var(--text-muted); }
.empty-state .icon { font-size: 3rem; margin-bottom: 16px; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: 8px; }

/* Modal Overlay */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile */
@media (max-width: 768px) {
  .app-header { padding: 16px 20px; }
  .nav-links { gap: 12px; }
  .nav-links a { font-size: 0.8rem; }
  .page-content { padding: 20px 20px 100px; }
  .track-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 16px; }
  .artist-header { flex-direction: column; text-align: center; padding: 24px; }
  .artist-avatar { width: 100px; height: 100px; font-size: 2rem; }
  .artist-stats { justify-content: center; }
  .player-bar { padding: 10px 16px; }
  .player-progress { display: none; }
  .volume-control { display: none; }
  .filters-bar { flex-direction: column; }
  .page-header h1 { font-size: 1.8rem; }
  .auth-container .card { padding: 24px; }
}