/* 全体レイアウト */
body {
  margin: 0;
  padding: 0;
  background: #fff;
  font-family: "Yu Gothic", "YuGothic", sans-serif, "Meiryo UI", Meiryo;
  font-size: 16px;
  color: #333;
  line-height: 1.6;
}
.wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  box-sizing: border-box;
}
/* 本日分見出し */
.balloon-heading {
  position: relative;
  background: transparent;
  color: #494949;
  padding: 0.25em 0.5em;
  border-left: solid 5px #7db4e6;
  font-size: 28px;
  margin: 0 0 10px 0;
}
.balloon-heading:not(:first-of-type) {
  margin-top: 30px;
}
/* 吹き出し */
.balloon {
  display: inline-block;
  background: #f0f0f0;
  color: #333;
  padding: 8px 12px;
  border-radius: 12px;
  position: relative;
  margin: 10px 0 20px 0;
  font-size: 16px;
}
.balloon:before {
  content: "";
  position: absolute;
  top: 100%;
  left: 20px;
  border: 10px solid transparent;
  border-top-color: #f0f0f0;
}
/* 楽曲リスト */
ol.song-list,
.upcoming-song-list {
  padding: 0;
  list-style: none;
  margin: 10px 0;
}
ol.song-list li {
  position: relative;
  padding: 0.8em 1em;
  margin-bottom: 8px;
  background: #e6f4ff;
  color: #505050;
  border-radius: 15px 0 0 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.song-info {
  flex-grow: 1;
  margin-left: 1px;
}
.song-info a {
  text-decoration: none;
  color: #1e90ff;
  font-weight: bold;
}
.song-info small {
  display: block;
  color: #777;
  margin-top: 4px;
}
/* いいねボタン */
.like-button,
.share-button {
  background: #f0f8ff;
  border: 1px solid #ccc;
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 14px;
  cursor: pointer;
  color: #555;
  margin-left: 10px;
  flex-shrink: 0;
}
.like-button.disabled {
  background: #eee;
  color: #999;
  cursor: default;
}
/* シェアボタン内アイコン */
.share-button img {
  width: 16px;
  height: 16px;
  vertical-align: middle;
}
/* 翌日セクション */
.upcoming-section {
  background: #fffbed;
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 20px;
}
.upcoming-heading {
  position: relative;
  padding: 0.5em;
  background: #ffe991;
  color: #333;
  font-size: 20px;
  margin: 0 0 20px 0;
  text-align: center;
  border-radius: 8px;
}
.upcoming-heading::before {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  border-bottom: solid 15px transparent;
  border-right: solid 20px #b2a58f;
}
.upcoming-song-list li {
  background: #f0f0f0;
  margin-bottom: 5px;
  padding: 4px 8px;
  border-radius: 8px;
  font-size: 14px;
  color: #333;
}
.upcoming-song-list li a {
  text-decoration: none;
  color: #1e90ff;   /* 今日と同じリンクカラー */
}
.upcoming-title {
  font-size: 16px;
  padding: 0.25em 0.5em;
  margin: 5px 0 10px 0;
  color: #494949;
}
/* レスポンシブ */
@media (max-width: 768px) {
  .wrapper {
    padding: 12px;
    font-size: 15px;
  }
  .balloon-heading {
    font-size: 24px;
    padding: 0.25em 0.5em;
  }
  .upcoming-heading,
  .upcoming-title {
    font-size: 18px;
  }
}