.playlists-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  margin-top: 80px; /* ヘッダーの高さ分のマージン */
}

.playlists-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.playlists-title {
  font-size: 2rem;
  font-weight: bold;
  color: #1DB954;
}

.playlists-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.playlist-card {
  background: #282828;
  border-radius: 8px;
  padding: 1.5rem;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
}

.playlist-card:hover {
  transform: translateY(-5px);
  background: #383838;
}

.playlist-image-container {
  position: relative;
  width: 100%;
  padding-bottom: 100%;
  margin-bottom: 1rem;
  border-radius: 4px;
  overflow: hidden;
}

.playlist-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.playlist-info {
  padding: 0.5rem 0;
}

.playlist-name {
  font-size: 1.2rem;
  font-weight: 600;
  color: #FFFFFF;
  margin: 0 0 0.5rem 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.playlist-owner {
  font-size: 0.9rem;
  color: #B3B3B3;
  margin: 0 0 0.25rem 0;
}

.playlist-tracks {
  font-size: 0.9rem;
  color: #B3B3B3;
  margin: 0;
}

.playlist-tracks-list {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #404040;
  max-height: 300px;
  overflow-y: auto;
}

.track-item {
  padding: 0.75rem;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.track-item:hover {
  background-color: #404040;
}

.track-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.track-name {
  color: #FFFFFF;
  font-size: 0.95rem;
  font-weight: 500;
}

.track-artist {
  color: #B3B3B3;
  font-size: 0.85rem;
}

.tracks-loading {
  color: #B3B3B3;
  text-align: center;
  padding: 1rem;
}

.track-error {
  color: #FF4444;
  text-align: center;
  padding: 1rem;
}

/* スクロールバーのスタイリング */
.playlist-tracks-list::-webkit-scrollbar {
  width: 8px;
}

.playlist-tracks-list::-webkit-scrollbar-track {
  background: #282828;
  border-radius: 4px;
}

.playlist-tracks-list::-webkit-scrollbar-thumb {
  background: #404040;
  border-radius: 4px;
}

.playlist-tracks-list::-webkit-scrollbar-thumb:hover {
  background: #505050;
}

.playlist-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.playlist-button {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.playlist-button-primary {
  background-color: #1DB954;
  color: #FFFFFF;
}

.playlist-button-primary:hover {
  background-color: #1ed760;
}

.playlist-button-secondary {
  background-color: transparent;
  border: 1px solid #1DB954;
  color: #1DB954;
}

.playlist-button-secondary:hover {
  background-color: rgba(29, 185, 84, 0.1);
}

.playlist-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.playlist-modal-content {
  background-color: #282828;
  border-radius: 8px;
  padding: 2rem;
  width: 90%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
}

.playlist-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.playlist-modal-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #FFFFFF;
}

.playlist-modal-close {
  background: none;
  border: none;
  color: #B3B3B3;
  font-size: 1.5rem;
  cursor: pointer;
}

.playlist-modal-close:hover {
  color: #FFFFFF;
}

.playlist-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.playlist-form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.playlist-form-label {
  color: #FFFFFF;
  font-weight: 600;
}

.playlist-form-input {
  padding: 0.75rem;
  border-radius: 4px;
  border: 1px solid #404040;
  background-color: #404040;
  color: #FFFFFF;
}

.playlist-form-input:focus {
  outline: none;
  border-color: #1DB954;
}

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

.playlist-form-submit {
  background-color: #1DB954;
  color: #FFFFFF;
  padding: 0.75rem;
  border: none;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.playlist-form-submit:hover {
  background-color: #1ed760;
}

.playlist-error {
  color: #FF4444;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.playlist-success {
  color: #1DB954;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

@media (max-width: 768px) {
  .playlists-container {
    padding: 1rem;
    margin-top: 60px;
  }

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

  .playlist-card {
    padding: 1rem;
  }

  .playlist-tracks-list {
    max-height: 250px;
  }

  .playlists-header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .playlist-modal-content {
    width: 95%;
    padding: 1.5rem;
  }
}