/* ============================================================
   Canvas Event Notice — full mode
   左: 直近イベント（主カード）
   右: 参加予定イベント一覧（補助カード + リスト）
   ============================================================ */

/* ── グリッドレイアウト ── */
.cen-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: start;
}

/* ── カラム見出し ── */
.cen-col__heading {
  margin: 0 0 14px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-text-muted, #999);
  text-transform: uppercase;
}

.cen-col__empty {
  font-size: 0.78rem;
  color: var(--c-text-muted, #999);
  margin: 0;
  line-height: 1.8;
}

/* ============================================================
   グリーティングカード（左カラム / 直近イベント）
   ============================================================ */
.cen-card--featured {
  position: relative;
  background: #fff;
  border: 1px solid var(--c-border, #d9d2ca);
  border-radius: 8px;
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.05),
    0 8px 28px rgba(0, 0, 0, 0.07);
  overflow: hidden;
}

/* 上部アクセントライン */
.cen-card--featured::before {
  content: '';
  display: block;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--c-accent, #3F67B1) 0%,
    rgba(var(--c-accent-rgb, 63, 103, 177), 0.4) 100%
  );
}

/* ── カードヘッダー（バッジ + 日付） ── */
.cen-card--featured .cen-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 28px 10px;
  border-bottom: 1px solid rgba(var(--c-border-rgb, 217, 210, 202), 0.6);
}

.cen-card__badge {
  display: inline-block;
  padding: 3px 12px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #fff;
  background: var(--c-accent, #3F67B1);
  border-radius: 20px;
}

.cen-card--featured .cen-card__date {
  font-size: 0.92rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--c-text-main, #444);
  letter-spacing: 0.04em;
}

/* ── カードボディ ── */
.cen-card--featured .cen-card__body {
  padding: 16px 28px 20px;
}

.cen-card--featured .cen-card__name {
  margin: 0 0 12px;
  font-size: 1.32rem;
  font-weight: 700;
  color: var(--c-text-strong, #1a1a1a);
  line-height: 1.45;
  letter-spacing: 0.01em;
}

.cen-card--featured .cen-card__name a {
  color: inherit;
  text-decoration: none;
}

.cen-card--featured .cen-card__name a:hover {
  color: var(--c-accent, #3F67B1);
}

/* ── 詳細 dl ── */
.cen-card__details {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(var(--c-border-rgb, 217, 210, 202), 0.5);
  padding-top: 10px;
}

.cen-card__detail-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 4px 0;
  font-size: 0.82rem;
  line-height: 1.7;
}

.cen-card__detail-row + .cen-card__detail-row {
  border-top: 1px dashed rgba(var(--c-border-rgb, 217, 210, 202), 0.7);
}

.cen-card__detail-row dt {
  flex-shrink: 0;
  width: 4.8em;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-text-muted, #999);
}

.cen-card__detail-row dd {
  margin: 0;
  color: var(--c-text-main, #333);
}

.cen-card__detail-row--notice dd {
  color: var(--c-accent-dark, #2F52A0);
  font-weight: 600;
}

/* ============================================================
   補助カード（右カラム / 参加予定一覧）
   ============================================================ */
.cen-col--sub {
  align-self: start;
}

.cen-card--support {
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(var(--c-border-rgb, 217, 210, 202), 0.96);
  border-radius: 8px;
  box-shadow:
    0 1px 4px rgba(0, 0, 0, 0.04),
    0 10px 24px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.cen-card__support-header {
  padding: 14px 18px 11px;
  border-bottom: 1px solid rgba(var(--c-border-rgb, 217, 210, 202), 0.72);
  background: rgba(var(--c-accent-rgb, 63, 103, 177), 0.03);
}

.cen-card--support .cen-col__heading {
  margin: 0;
}

.cen-support-list {
  padding: 0 18px;
}

.cen-support-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 12px;
  row-gap: 4px;
  padding: 13px 0 14px;
}

.cen-support-item + .cen-support-item {
  border-top: 1px solid rgba(var(--c-border-rgb, 217, 210, 202), 0.82);
}

.cen-support-item__date {
  flex: 0 0 6.2em;
  margin: 0;
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  color: var(--c-accent, #3F67B1);
  letter-spacing: 0.02em;
}

.cen-support-item__name {
  flex: 1 1 calc(100% - 7.2em);
  margin: 0;
  font-size: 0.89rem;
  font-weight: 600;
  color: var(--c-text-strong, #1a1a1a);
  line-height: 1.5;
  min-width: 0;
}

.cen-support-item__name a {
  color: inherit;
  text-decoration: none;
}

.cen-support-item__name a:hover {
  color: var(--c-accent, #3F67B1);
}

.cen-support-item__venue {
  flex: 0 1 auto;
  margin: 0 0 0 calc(6.2em + 12px);
  font-size: 0.74rem;
  color: var(--c-text-secondary, #666);
  line-height: 1.5;
  white-space: nowrap;
}

.cen-support-item__circle {
  flex: 0 1 auto;
  margin: 0 0 0 10px;
  font-size: 0.72rem;
  color: var(--c-text-muted, #999);
  line-height: 1.5;
  white-space: nowrap;
}

.cen-card--support .cen-col__empty {
  margin: 0;
  padding: 16px 18px 18px;
}

/* ============================================================
   レスポンシブ: 680px 以下で縦並び（直近カードが先頭）
   ============================================================ */
@media (max-width: 680px) {
  .cen-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* 左カラム（直近イベント）を先頭に維持 */
  .cen-col--main {
    order: 1;
  }

  .cen-col--sub {
    order: 2;
    align-self: start;
  }

  .cen-card__support-header {
    padding: 13px 16px 10px;
  }

  .cen-support-list {
    padding: 0 16px;
  }

  .cen-support-item {
    column-gap: 10px;
  }

  .cen-support-item__date,
  .cen-support-item__name,
  .cen-support-item__venue,
  .cen-support-item__circle {
    flex: none;
    margin-left: 0;
    white-space: normal;
  }

  .cen-card--featured .cen-card__header {
    padding: 14px 18px 12px;
  }

  .cen-card--featured .cen-card__body {
    padding: 18px 18px 22px;
  }

  .cen-card--featured .cen-card__name {
    font-size: 1.15rem;
  }
}