/* ===== The Sound Stage — Shared App Styles ===== */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=DM+Sans:wght@400;500&display=swap');

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

:root {
  --bg-dark: #0a0a0f;
  --bg-card: #12121a;
  --bg-input: #1a1a25;
  --accent: #ff3d00;
  --accent-hover: #ff5722;
  --accent-glow: rgba(255, 61, 0, 0.3);
  --text-primary: #f0f0f5;
  --text-secondary: #8a8a9a;
  --text-muted: #5a5a6a;
  --border: rgba(255,255,255,0.06);
  --border-focus: rgba(255, 61, 0, 0.4);
  --gradient-warm: linear-gradient(135deg, #ff3d00 0%, #ff6f3c 50%, #ffa726 100%);
  --success: #22c55e;
  --error: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
  min-height: 100vh;
}

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

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

/* ===== NAV ===== */
.app-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.2s;
}

.nav-links a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.nav-links a.active { color: var(--accent); }

.btn-nav {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: 8px;
  font-weight: 600 !important;
  font-size: 14px;
  transition: all 0.2s;
}

.btn-nav:hover { background: var(--accent-hover) !important; transform: translateY(-1px); }

/* ===== LAYOUT ===== */
.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.page-header {
  margin-bottom: 40px;
}

.page-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.3s;
}

.card:hover { border-color: rgba(255, 61, 0, 0.15); }

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--border-focus);
}

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

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238a8a9a' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--gradient-warm);
  color: #fff;
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 20px var(--accent-glow); }

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

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

.btn-danger {
  background: transparent;
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.3);
  font-size: 13px;
  padding: 6px 12px;
}

.btn-danger:hover { background: rgba(239, 68, 68, 0.1); }

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ===== GENRE CHIPS ===== */
.genre-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.genre-chip {
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}

.genre-chip:hover { border-color: rgba(255, 61, 0, 0.3); color: var(--text-primary); }
.genre-chip.active {
  background: rgba(255, 61, 0, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== FEED GRID ===== */
.feed-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.feed-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s;
}

.feed-card:hover {
  border-color: rgba(255, 61, 0, 0.2);
  transform: translateY(-2px);
}

.feed-card-video {
  position: relative;
  aspect-ratio: 16/9;
  background: #000;
  overflow: hidden;
}

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

.feed-card-video .play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: opacity 0.2s;
}

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

.play-overlay span {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.feed-card-body {
  padding: 16px 20px;
}

.feed-card-type {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 8px;
}

.feed-card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.3;
}

.feed-card-artist {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.artist-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.feed-card-artist span {
  font-size: 14px;
  color: var(--text-secondary);
}

.feed-card-artist a {
  color: var(--text-secondary);
  font-size: 14px;
}

.feed-card-artist a:hover { color: var(--text-primary); }

.feed-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.feed-card-genre {
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  padding: 3px 10px;
  border-radius: 100px;
}

.feed-card-date {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== AUDIO PLAYER ===== */
.audio-player {
  width: 100%;
  padding: 12px 20px 16px;
}

.audio-player audio {
  width: 100%;
  height: 36px;
  border-radius: 18px;
}

audio::-webkit-media-controls-panel {
  background: var(--bg-input);
}

/* ===== TRACK WAVE PLACEHOLDER ===== */
.track-visual {
  height: 80px;
  background: linear-gradient(180deg, rgba(255,61,0,0.08) 0%, transparent 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
}

.track-visual .wave-bars {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 100%;
  padding: 16px 0;
}

.wave-bar {
  width: 3px;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0.4;
  animation: wavePulse 1.5s ease-in-out infinite;
}

@keyframes wavePulse {
  0%, 100% { transform: scaleY(0.3); }
  50% { transform: scaleY(1); }
}

/* ===== ARTIST PROFILE ===== */
.profile-hero {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  margin-bottom: 48px;
}

.profile-avatar-lg {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--gradient-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 42px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.profile-info h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

.profile-meta {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.profile-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-secondary);
}

.profile-bio {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 600px;
  line-height: 1.7;
}

/* ===== TABS ===== */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.tab {
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.tab:hover { color: var(--text-primary); }
.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ===== CONTENT LIST ===== */
.content-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.content-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s;
}

.content-item:hover { border-color: rgba(255,61,0,0.15); }

.content-item-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(255,61,0,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.content-item-info {
  flex: 1;
  min-width: 0;
}

.content-item-title {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.content-item-subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.content-item-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* ===== FILE UPLOAD ===== */
.file-drop {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 48px 32px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.file-drop:hover, .file-drop.dragover {
  border-color: var(--accent);
  background: rgba(255, 61, 0, 0.03);
}

.file-drop-icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.file-drop-text {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.file-drop-hint {
  font-size: 12px;
  color: var(--text-muted);
}

.file-selected {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius-sm);
  margin-top: 12px;
  font-size: 14px;
  color: var(--success);
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--success);
}

.toast.error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--error);
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 80px 24px;
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.empty-state h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.empty-state p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ===== FILTER BAR ===== */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.filter-bar select {
  padding: 8px 36px 8px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-secondary);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238a8a9a' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

/* ===== AUTH PAGES ===== */
.auth-container {
  max-width: 440px;
  margin: 80px auto;
  padding: 0 24px;
}

.auth-container h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.auth-container .subtitle {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}

/* ===== LOADING ===== */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .feed-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .profile-hero { flex-direction: column; align-items: center; text-align: center; }
  .profile-meta { justify-content: center; }
  .nav-links { gap: 4px; }
  .nav-links a { padding: 8px 10px; font-size: 13px; }
  .page-container { padding: 24px 16px 60px; }
  .auth-container { margin: 40px auto; }
}

@media (max-width: 480px) {
  .nav-links .hide-mobile { display: none; }
}