.anime-text {
  color: var(--anime-card-text-default-color);
}

.back-color {
  background-color: var(--anime-cardsection-backdefault-color);
}

.anime-meta-text {
  color: var(--anime-card-metainfo-default-color);
}

.top-contents-column {
  display: flex;
}

.contents {
  display: flex;
  flex-direction: column;
}

.main-group-sec {
  display: flex;
  flex-direction: row;
}

.video-container {
  max-width: 960px;
  margin: 20px auto;
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.08);
}

h1 {
  font-size: 1.8em;
  margin-bottom: 10px;
}

.video-player {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 8px;
}

.video-player iframe,
.video-player video {
  width: 100%;
  height: 500px;
  border: none;
  border-radius: 8px;
}

.video-description {
  margin-top: 25px;
}

.video-description h3 {
  font-size: 1.3em;
  margin-bottom: 10px;
}

.video-description p {
  white-space: pre-line;
  background: #f1f1f1;
  padding: 15px;
  border-radius: 6px;
}

.playlist-section {
  margin-top: 30px;
}

.playlist-section h3 {
  font-size: 1.3em;
  margin-bottom: 15px;
}

.playlist {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  padding: 0;
  list-style: none;
}

.playlist li {
  width: calc(33.33% - 10px);
  box-sizing: border-box;
}

.playlist a {
  text-decoration: none;
  color: #222;
  transition: opacity 0.2s;
}

.playlist a:hover {
  opacity: 0.85;
}

.playlist img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 6px;
  background: #eee;
}

.playlist p {
  font-size: 14px;
  margin: 5px 0 0;
  text-align: center;
  line-height: 1.4;
}

#login-popup {
  display: none;
  /* JSで'flex'に切り替える */
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  justify-content: center;
  align-items: center;
}

#login-popup .popup-box {
  background: white;
  padding: 30px;
  border-radius: 10px;
  width: 300px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

#login-popup input {
  width: calc(100% - 16px);
  padding: 8px;
  margin-top: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

#login-popup button {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
}

#login-popup button:hover {
  background-color: #0056b3;
}

#login-message {
  margin-top: 10px;
  font-size: 14px;
}

#youtube-player-container {
  width: 100%;
  height: 100%;
}

#youtube-player-container iframe {
  width: 100%;
  height: 100%;
  display: block;
}

.video-player.youtube-trigger,
.playlist li a.playlist-youtube-trigger {
  cursor: pointer;
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background-color: #000;
  display: block;
  overflow: hidden;
  border-radius: 8px;
}

.video-player.youtube-trigger img,
.playlist li a.playlist-youtube-trigger img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.play-button-overlay,
.play-button-small-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.8);
  background-color: rgba(0, 0, 0, 0.6);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: none;
  transition: background-color 0.3s ease, color 0.3s ease;
  z-index: 1;
}

/* メインの動画用のプレイボタン */
.play-button-overlay {
  font-size: 80px;
  padding: 10px;
  width: 100px;
  height: 100px;
}

/* プレイリスト用の小さいプレイボタン */
.play-button-small-overlay {
  font-size: 40px;
  padding: 5px;
  width: 50px;
  height: 50px;
}

/* ホバー時のエフェクト */
.video-player.youtube-trigger:hover img,
.playlist li a.playlist-youtube-trigger:hover img {
  transform: scale(1.05);
}

.video-player.youtube-trigger:hover .play-button-overlay,
.playlist li a.playlist-youtube-trigger:hover .play-button-small-overlay {
  background-color: rgba(200, 0, 0, 0.7);
  color: #fff;
}

/* アニメーション */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes zoomIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* ▼ モバイル対応（768px以下） */
@media screen and (max-width: 768px) {
  .video-container {
    padding: 15px;
  }

  .video-player iframe,
  .video-player video {
    height: 220px;
  }

  .playlist li {
    width: calc(50% - 10px);
  }

  h1 {
    font-size: 1.2em;
    text-align: center;
  }

  .video-description p {
    font-size: 15px;
  }
}

/* ▼ スマホ特化（480px以下） */
@media screen and (max-width: 480px) {
  .playlist li {
    width: 100%;
  }

  .video-description p {
    font-size: 14px;
  }

  .playlist-section h3,
  .video-description h3 {
    font-size: 1.1em;
    text-align: center;
  }
}