/* セクション共通 */
.schedule-summary,
.race-summary,
.note-summary,
.ranking-summary {
  max-width: 960px;
  margin: 40px auto;
  padding: 0 16px;
  box-sizing: border-box;
}

/* G1見出し（回転あり） */
.g1-label {
  display: inline-block;
  backface-visibility: visible;
  font-weight: bold;
  font-size: 2rem;
  color: red;
}

/* グレード装飾：.g1, .g2, .g3 */
.g1 {
  display: inline-block;
  font-weight: bold;
  font-size: 1em;
  background: linear-gradient(135deg, #ff4c4c, #b71c1c);
  color: white;
  padding: 1px 4px;
  border-radius: 4px;
  animation: rotateY 8s linear infinite;
  transform-style: preserve-3d;
  backface-visibility: visible;
  box-shadow: 0 0 6px rgba(255, 0, 0, 0.3);
  line-height: 1;
}

.g2, .g3 {
  display: inline-block;
  font-weight: bold;
  animation: rotateY 4s linear infinite;
  transform-style: preserve-3d;
  backface-visibility: visible;
}

.g2 { color: silver; }
.g3 { color: #cd7f32; }

.g1:hover,
.g2:hover,
.g3:hover {
  animation-play-state: paused;
}

/* ?→▼ 展開アイコン */
.arrow-icon {
  width: 0;
  height: 0;
  border-left: 10px solid #1b5e20;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  margin-right: 8px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

details[open] .arrow-icon {
  transform: rotate(90deg);
}

/* summary 本体 */
details summary {
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.4;
  flex-wrap: wrap;
  white-space: normal;
  word-break: break-word;
  font-weight: bold;
  font-size: 1.4rem;
  color: #1b5e20;
  padding: 16px 20px;
  cursor: pointer;
  user-select: none;
}

/* details ブロック背景 */
.schedule-block,
.race-block,
.ranking-block,
.note-block {
  border: 2px solid #2e7d32;
  border-radius: 8px;
  background-color: #c5e1a5;
  margin-bottom: 16px;
  transition: background-color 0.3s ease;
}

.schedule-block[open],
.race-block[open],
.ranking-block[open],
.note-block[open] {
  background-color: #aed581;
  box-shadow: 0 4px 10px rgba(0, 80, 0, 0.15);
}

.schedule-block p,
.race-block p,
.note-block p {
  padding: 4px 24px 12px 24px;
  margin: 0;
  font-size: 1.2rem;
}



/* リーディング上位装飾 */
.ranking-table tbody tr:first-child {
  border: 2px solid gold;
  background: linear-gradient(90deg, #fff8e1, #fffde7);
  font-weight: bold;
}

.ranking-table tbody tr:nth-child(2) {
  background: linear-gradient(90deg, #eceff1, #ffffff);
  font-weight: bold;
  border-left: 3px solid #b0bec5;
  border-right: 3px solid #b0bec5;
}

.ranking-table tbody tr:nth-child(3) {
  background: linear-gradient(90deg, #fbe9e7, #ffccbc);
  font-weight: bold;
  border-left: 3px solid #bf360c;
  border-right: 3px solid #bf360c;
}

/* 回転キー */
@keyframes rotateY {
  0%   { transform: rotateY(0deg); }
  100% { transform: rotateY(360deg); }
}
.race-summary h2,
.past-race-archive h2,
.jockey-ranking h2 {
  font-size: 1.4rem;
  font-weight: bold;
  background-color: #c8e6c9;
  padding: 12px 0;
  margin: 0 auto 10px auto;
  text-align: center;
  border-radius: 6px;
  border: 1px solid #81c784;
}

/* 🐴 今週の重賞アイコン付きで個別調整したい場合 */
.race-summary h2::before {
  content: "🐴 ";
  margin-right: 4px;
}

/* 高さ調整：過去レースアーカイブ枠 */
.past-race-archive {
  padding: 20px;
  margin-bottom: 20px;
  background-color: #f5f5f5;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}