/**
 * 4uonly Music Platform - Music Cards, List Rows, Grids & Interactive Elements
 * Zero-Overflow Mobile-First Architecture
 */

/* Hero Banner & Search Component */
.four-hero {
  background: var(--hero-grad);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--sp-32) 0;
  margin-bottom: var(--sp-28);
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
}

.four-hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, var(--accent-primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

.four-hero-inner {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
  width: 100%;
  box-sizing: border-box;
}

.four-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-6);
  padding: 4px 12px;
  background: rgba(225, 29, 72, 0.12);
  border: 1px solid rgba(225, 29, 72, 0.3);
  border-radius: var(--radius-full);
  color: var(--accent-primary);
  font-size: 0.775rem;
  font-weight: 700;
  margin-bottom: var(--sp-12);
  max-width: 100%;
  box-sizing: border-box;
}

.four-hero-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--sp-10);
  letter-spacing: -0.03em;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.four-hero-title span {
  color: var(--accent-primary);
}

.four-hero-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: var(--sp-16);
  line-height: 1.5;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.four-hero-search-form {
  position: relative;
  max-width: 600px;
  margin: 0 auto var(--sp-14);
  display: flex;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
}

.four-hero-search-input {
  width: 100% !important;
  max-width: 100% !important;
  padding: 12px 90px 12px 42px !important;
  background: var(--input-bg) !important;
  border: 1px solid var(--border-medium) !important;
  border-radius: var(--radius-full) !important;
  color: var(--input-text) !important;
  font-size: 0.9rem !important;
  box-shadow: var(--shadow-md) !important;
  transition: all var(--trans-fast);
  outline: none;
  height: 48px !important;
  box-sizing: border-box !important;
}

.four-hero-search-input:focus {
  border-color: var(--accent-primary) !important;
  box-shadow: 0 0 0 3px var(--accent-primary-glow), var(--shadow-md) !important;
}

.four-hero-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  pointer-events: none;
  width: 18px;
  height: 18px;
}

.four-hero-search-submit {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--accent-primary) !important;
  color: #ffffff !important;
  border: none !important;
  padding: 6px 14px !important;
  border-radius: var(--radius-full) !important;
  font-size: 0.8rem !important;
  font-weight: 700 !important;
  cursor: pointer;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--trans-fast);
  box-sizing: border-box !important;
}

.four-hero-search-submit:hover {
  background: var(--accent-primary-hover) !important;
}

.four-hero-trending-tags {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-6);
  font-size: 0.8rem;
  width: 100%;
  box-sizing: border-box;
}

.four-hero-trending-tags span {
  color: var(--text-tertiary);
}

/* 1. COMPACT SONG CARD */
.four-song-card {
  width: 100%;
  max-width: 100%;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--sp-10);
  transition: all var(--trans-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  box-sizing: border-box;
  min-width: 0;
  overflow: hidden;
}

.four-carousel .four-song-card {
  flex: 0 0 150px;
  width: 150px;
  max-width: 150px;
}

.four-song-card:hover {
  transform: translateY(-3px);
  background: var(--bg-surface-hover);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.four-song-artwork {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--sp-8);
  background: var(--bg-surface-3);
  display: block;
}

.four-song-artwork img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--trans-normal);
  display: block;
}

.four-song-card:hover .four-song-artwork img {
  transform: scale(1.05);
}

.four-song-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--trans-fast);
}

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

.four-play-circle {
  width: 36px;
  height: 36px;
  background: var(--accent-primary);
  color: #ffffff;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  transform: scale(0.9);
  transition: transform var(--trans-fast);
}

.four-song-card:hover .four-play-circle {
  transform: scale(1);
}

.four-song-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  min-width: 0;
  overflow: hidden;
}

.four-song-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  display: block;
}

.four-song-artist {
  font-size: 0.775rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  display: block;
}

.four-song-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--sp-4);
  font-size: 0.7rem;
  color: var(--text-tertiary);
  width: 100%;
}

/* 2. FEATURED SONG CARD */
.four-featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-12);
  width: 100%;
  box-sizing: border-box;
}

.four-featured-card {
  display: flex;
  gap: var(--sp-12);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--sp-12);
  transition: all var(--trans-fast);
  align-items: center;
  text-decoration: none;
  width: 100%;
  box-sizing: border-box;
  min-width: 0;
  overflow: hidden;
}

.four-featured-card:hover {
  background: var(--bg-surface-hover);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.four-featured-artwork {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
}

.four-featured-artwork img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.four-featured-content {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
}

.four-featured-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.four-featured-artist {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: var(--sp-4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 3. LIST-STYLE MUSIC ROWS */
.four-rank-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  min-width: 0;
}

.four-music-row {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--trans-fast);
  gap: var(--sp-10);
  text-decoration: none;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  min-width: 0;
  overflow: hidden;
}

.four-music-row:hover {
  background: var(--bg-surface-2);
  border-color: var(--border-medium);
}

.four-row-rank {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-tertiary);
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.four-music-row:nth-child(1) .four-row-rank { color: var(--accent-warm); }
.four-music-row:nth-child(2) .four-row-rank { color: var(--accent-secondary); }
.four-music-row:nth-child(3) .four-row-rank { color: var(--accent-primary); }

.four-row-artwork {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.four-row-artwork img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.four-row-details {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.four-row-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.four-row-sub {
  font-size: 0.775rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.four-row-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  flex-shrink: 0;
}

.four-row-duration {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* 4. ARTIST CARDS */
.four-artist-card {
  width: 100%;
  max-width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-6);
  text-decoration: none;
  transition: transform var(--trans-fast);
  box-sizing: border-box;
  min-width: 0;
}

.four-carousel .four-artist-card {
  flex: 0 0 120px;
  width: 120px;
  max-width: 120px;
}

.four-artist-card:hover {
  transform: translateY(-3px);
}

.four-artist-avatar {
  width: 110px;
  height: 110px;
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 2px solid var(--border-subtle);
  background: var(--bg-surface-3);
  transition: border-color var(--trans-fast);
  box-sizing: border-box;
}

.four-artist-card:hover .four-artist-avatar {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

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

.four-artist-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.four-artist-genre {
  font-size: 0.725rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* 5. ALBUM CARDS */
.four-album-card {
  width: 100%;
  max-width: 100%;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--sp-10);
  text-decoration: none;
  transition: all var(--trans-normal);
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  min-width: 0;
  overflow: hidden;
}

.four-carousel .four-album-card {
  flex: 0 0 150px;
  width: 150px;
  max-width: 150px;
}

.four-album-card:hover {
  transform: translateY(-3px);
  background: var(--bg-surface-hover);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.four-album-artwork {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--sp-8);
  background: var(--bg-surface-3);
}

.four-album-artwork img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.four-album-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.four-album-artist {
  font-size: 0.775rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* 6. EVENT / FESTIVAL CARDS */
.four-event-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--sp-12);
  width: 100%;
  box-sizing: border-box;
}

.four-event-card {
  position: relative;
  height: 130px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--sp-12);
  background-size: cover;
  background-position: center;
  transition: transform var(--trans-normal), border-color var(--trans-normal);
  width: 100%;
  box-sizing: border-box;
}

.four-event-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.85) 100%);
  z-index: 1;
}

.four-event-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-warm);
}

.four-event-content {
  position: relative;
  z-index: 2;
  width: 100%;
  overflow: hidden;
}

.four-event-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 2px;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.four-event-sub {
  font-size: 0.75rem;
  color: var(--accent-warm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* 7. LANGUAGE TILES */
.four-lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(115px, 1fr));
  gap: var(--sp-8);
  width: 100%;
  box-sizing: border-box;
}

.four-lang-tile {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--sp-10) var(--sp-12);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: all var(--trans-fast);
  width: 100%;
  box-sizing: border-box;
}

.four-lang-tile:hover {
  background: var(--bg-surface-hover);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.four-lang-native {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
}

.four-lang-en {
  font-size: 0.725rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
  .four-hero {
    padding: var(--sp-24) 0;
  }
  .four-hero-title {
    font-size: 1.65rem;
  }
  .four-hero-search-input {
    padding: 10px 80px 10px 38px !important;
    font-size: 0.825rem !important;
    height: 44px !important;
  }
  .four-hero-search-submit {
    padding: 4px 12px !important;
    font-size: 0.75rem !important;
    height: 34px;
  }
  .four-carousel .four-song-card {
    flex: 0 0 135px;
    width: 135px;
    max-width: 135px;
    padding: 8px;
  }
  .four-carousel .four-album-card {
    flex: 0 0 140px;
    width: 140px;
    max-width: 140px;
  }
  .four-carousel .four-artist-card {
    flex: 0 0 100px;
    width: 100px;
    max-width: 100px;
  }
  .four-artist-avatar {
    width: 85px;
    height: 85px;
  }
}