/* ============================
   活動実績ページ
   ============================ */

/* ハイライトグリッド */
.highlight-section {
  background: linear-gradient(160deg, #f0f9ff, #fff0f5);
  padding: 48px 0;
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.highlight-card {
  background: white;
  border-radius: 18px;
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.highlight-icon {
  font-size: 1.6rem;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #87CEEB, #FFB6C1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.highlight-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.4rem;
  font-weight: 900;
  color: #222;
  margin-bottom: 6px;
}

.highlight-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: #888;
  line-height: 1.5;
}

/* タイムライン */
.timeline-section {
  background: #fafafa;
}

.season-block {
  position: relative;
  padding-left: 32px;
  margin-bottom: 56px;
}

.season-block::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 32px;
  bottom: -56px;
  width: 2px;
  background: linear-gradient(180deg, #87CEEB, #FFB6C1);
}

.season-block:last-child::before {
  display: none;
}

.season-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.season-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #87CEEB, #FFB6C1);
  flex-shrink: 0;
  position: absolute;
  left: 0;
  top: 4px;
  box-shadow: 0 0 0 4px rgba(135,206,235,0.2);
}

.trophy-dot {
  background: linear-gradient(135deg, #FFD700, #FFA500);
  box-shadow: 0 0 0 4px rgba(255,215,0,0.25);
}

.season-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.season-date {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #87CEEB;
}

.season-title {
  font-size: 1.25rem;
  font-weight: 900;
  color: #222;
}

/* アクティビティリスト */
.season-body {
  background: white;
  border-radius: 16px;
  padding: 8px 0;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}

.activity-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.activity-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 12px 24px;
  border-bottom: 1px solid #f5f5f5;
  transition: background 0.15s;
}

.activity-item:last-child {
  border-bottom: none;
}

.activity-item:hover {
  background: #fafafa;
}

.activity-month {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 800;
  color: #bbb;
  min-width: 52px;
  flex-shrink: 0;
}

.activity-name {
  font-size: 0.92rem;
  color: #444;
  line-height: 1.5;
}

.activity-name i {
  display: inline-block;
  width: 1.1em;
  text-align: center;
  margin-right: 6px;
}

/* チーム行 */
.activity-item.team {
  background: rgba(255,182,193,0.08);
}

.activity-item.team .activity-month {
  color: #e8789a;
}

.activity-item.team .activity-name {
  color: #c45c7a;
  font-weight: 700;
}

/* トロフィー行 */
.activity-item.trophy {
  background: linear-gradient(135deg, rgba(255,215,0,0.06), rgba(255,165,0,0.04));
}

.activity-item.trophy .activity-month {
  color: #e6a800;
}

.activity-item.trophy .activity-name {
  color: #333;
}

.activity-item.trophy i {
  color: #FFD700;
}

/* ハイライト行（全国大会） */
.activity-item.highlight-item {
  background: linear-gradient(135deg, rgba(255,215,0,0.12), rgba(255,182,193,0.08));
  border-radius: 8px;
}

.activity-item.highlight-item .activity-name {
  color: #c47a00;
}

.activity-item.highlight-item i {
  color: #FFD700;
}

/* メディア行 */
.activity-item.media {
  background: rgba(135,206,235,0.06);
}

.activity-item.media .activity-name {
  color: #5BA8C8;
  font-weight: 700;
}

.activity-item.media i {
  color: #87CEEB;
}

/* CTA */
.about-cta {
  text-align: center;
  padding: 20px 0 0;
}

.about-cta p {
  font-size: 1.1rem;
  font-weight: 700;
  color: #555;
  margin-bottom: 20px;
}

/* ============================
   レスポンシブ
   ============================ */
@media (max-width: 768px) {
  .highlight-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .activity-item {
    padding: 12px 16px;
  }
}

@media (max-width: 480px) {
  .highlight-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .season-block {
    padding-left: 24px;
  }

  .activity-month {
    min-width: 40px;
  }
}