/* =====================================================
   開催概要ページ（/ja/event_overview/）
   TOP（top.css）の「開催概要 (2026)」から移植
   ===================================================== */

/* ---- 開催概要 (2026) ---- */
.section2026--overview {
    background: #fff;
    /* 下層ページではページタイトルと重複するためセクション見出しを置かない。見出し分の上余白をここで確保 */
    padding: 80px 0 100px;
    overflow: hidden; /* X字の背景線が画面外にはみ出ないように */
}

.overview2026__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 3カラム: [カード][中央 HYBRID][カード] */
.overview2026__grid {
    position: relative;
    display: grid;
    grid-template-columns: 1fr minmax(140px, 180px) 1fr;
    gap: 24px;
    align-items: stretch;
    margin-bottom: 40px;
}

/* HYBRID バッジ中心を交点とするX字の背景線 */
.overview2026__grid::before,
.overview2026__grid::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200%;
    height: 2px;
    background: #cbd5e0;
    z-index: 0;
    pointer-events: none;
}

.overview2026__grid::before {
    transform: translate(-50%, -50%) rotate(30deg);
}

.overview2026__grid::after {
    transform: translate(-50%, -50%) rotate(-30deg);
}

/* カード本体 */
.overview2026__card {
    position: relative;
    z-index: 1;
    background: #fff;
    border-radius: 20px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 16px rgba(10, 26, 78, 0.06);
}

.overview2026__card-header {
    background: #5b9bd5;
    color: #fff;
    padding: 20px 28px;
    text-align: center;
}

.overview2026__card--real .overview2026__card-header {
    background: #5b9bd5;
}

.overview2026__card-title {
    margin: 0;
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    line-height: 1.4;
}

.overview2026__card-body {
    padding: 32px 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* カード内のイメージ画像placeholder */
.overview2026__card-figure {
    margin: 0 0 24px;
    width: calc(100% + 64px);
    aspect-ratio: 16 / 9;
    background: #f3f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin: -32px -28px 24px; /* カード内パディングを打ち消して全幅に */
}

.overview2026__card-figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.overview2026__date {
    font-size: 32px;
    font-weight: bold;
    color: #18264c;
    margin: 0 0 8px;
    border-bottom: 1px solid #d8e0ec;
    padding-bottom: 8px;
}

.overview2026__dow {
    font-size: 16px;
    margin-left: 2px;
}

.overview2026__lead {
    font-size: 16px;
    font-weight: bold;
    margin: 0 0 16px;
    line-height: 1.8;
}

.overview2026__points {
    list-style: none;
    padding: 0;
    margin: 0;
}

.overview2026__points li {
    position: relative;
    padding-left: 1.4em;
    margin-bottom: 0.5em;
    font-size: 16px;
    line-height: 1.8;
}

.overview2026__points li::before {
    content: "■";
    position: absolute;
    left: 0;
    color: #5b9bd5;
    font-size: 0.7em;
    top: 0.45em;
}

/* 中央の HYBRID バッジ */
.overview2026__hybrid {
    position: relative;
    z-index: 2;
    align-self: center;
    background: #18264c;
    color: #fff;
    border-radius: 150px;
    line-height: 1.2;
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.overview2026__hybrid-label {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: bold;
    letter-spacing: 0.02em;
    text-align: center;
}

.overview2026__hybrid-x {
    color: #e9bd29;
    font-size: 24px;
    font-weight: bold;
    line-height: 1;
  display: block;
}

.overview2026__hybrid-sub {
    margin: 0;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 0.04em;
    opacity: 0.85;
}

/* フッター文 */
.overview2026__footer {
    background: #feffe6;
    border: 1px solid #e3f570;
    padding: 16px 20px;
    border-radius: 8px;
    text-align: center;
    margin: 0;
    line-height: 1.8;
}

@media screen and (max-width: 768px) {
    .section2026--overview {
        padding-top: 60px;
    }
    .overview2026__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .overview2026__card-header {
        padding: 16px 20px;
    }
    .overview2026__card-title {
        font-size: 24px;
    }
    .overview2026__card-body {
        padding: 24px 20px;
    }
    .overview2026__date {
        font-size: 24px;
    }
    /* HYBRIDバッジは縦並びでも円形を維持 */
    .overview2026__hybrid {
        width: 180px;
        height: 180px;
        min-height: 180px;
        max-width: 180px;
        margin: 0 auto;
        padding: 16px 20px;
        aspect-ratio: 1;
    }
    .overview2026__hybrid-label {
        font-size: 16px;
    }
    .overview2026__footer {
        padding: 16px;
        font-size: 14px;
        text-align: left;
    }
    .overview2026__footer br {
        display: none;
    }
}