/* おすすめセクション */
.recommendations-section {
  padding: 24px;
  max-width: 100%;
}

.recommendations-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.recommendations-header h2 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin: 0;
}

/* 更新ボタン */
.section-refresh-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: transparent;
  border: none;
  color: #b3b3b3;
  cursor: pointer;
  transition: color 0.2s, background-color 0.2s, transform 0.2s;
}

.section-refresh-btn:hover {
  color: #fff;
  background-color: #282828;
  transform: scale(1.1);
}

.section-refresh-btn:active {
  transform: scale(0.95);
}

.section-refresh-btn.loading {
  animation: spin 1s linear infinite;
  pointer-events: none;
}

.section-refresh-btn.loading svg {
  color: #1DB954;
}

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

/* レスポンシブグリッド */
.recommendations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}

/* カード */
.recommendation-card {
  background-color: #181818;
  border-radius: 6px;
  padding: 12px;
  transition: background-color 0.3s;
  cursor: pointer;
}

.recommendation-card:hover {
  background-color: #282828;
}

.recommendation-card:hover .recommendation-play-btn {
  opacity: 1;
  transform: translateY(0);
}

/* カード画像コンテナ */
.recommendation-card-image {
  position: relative;
  margin-bottom: 12px;
}

.recommendation-card-image img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

/* 再生ボタン */
.recommendation-play-btn {
  position: absolute;
  right: 6px;
  bottom: 6px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #1ed760;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s, transform 0.3s, background-color 0.2s;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.recommendation-play-btn:hover {
  transform: translateY(0) scale(1.06);
  background-color: #1fdf64;
}

.recommendation-play-btn svg {
  color: #000;
  width: 18px;
  height: 18px;
  margin-left: 2px;
}

/* カード情報 */
.recommendation-card-info {
  min-height: 48px;
}

.recommendation-title {
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-height: 1.3;
}

.recommendation-artist {
  color: #a7a7a7;
  font-size: 11px;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Wide screen - more columns */
@media (min-width: 1400px) {
  .recommendations-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

@media (min-width: 1100px) and (max-width: 1399px) {
  .recommendations-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 900px) and (max-width: 1099px) {
  .recommendations-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* レスポンシブ */
@media (max-width: 768px) {
  .recommendations-section {
    padding: 16px;
  }

  .recommendations-header h2 {
    font-size: 18px;
  }

  .recommendations-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .recommendation-card {
    padding: 10px;
  }

  .recommendation-play-btn {
    width: 36px;
    height: 36px;
    opacity: 1;
    transform: translateY(0);
  }

  .recommendation-play-btn svg {
    width: 16px;
    height: 16px;
  }

  .recommendation-title {
    font-size: 12px;
  }

  .recommendation-artist {
    font-size: 10px;
  }
}

@media (max-width: 480px) {
  .recommendations-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .recommendation-card {
    padding: 8px;
  }

  .recommendation-card-image {
    margin-bottom: 8px;
  }

  .recommendation-card-info {
    min-height: 40px;
  }
}