@charset "UTF-8";

/* =========================================
   活動紹介ページ用CSS（スクロール軽減・3列グリッド）
========================================= */

.activities-section {
    padding: 0px 20px 60px; 
    margin-top: -40px;
}
.activities-section .section-inner {
    max-width: 1200px;
    margin: 0 auto;
}

/* タイトル・導入 */
.page-title {
    margin-top: 0; color: #84D2E5; font-size: 2.2rem; font-weight: bold;
    margin-bottom: 20px; padding-bottom: 15px; border-bottom: 2px solid #F7D070; 
}
.page-desc {
    color: #444; font-size: 1.1rem; margin-bottom: 30px; line-height: 1.6;
}
.intro-block {
    margin-bottom: 60px;
}
.intro-text {
    font-size: 1.05rem; line-height: 1.8; color: #333; margin: 0;
}

.sub-title {
    text-align: center; color: #84D2E5; font-size: 1.6rem; font-weight: bold;
    margin-bottom: 40px;
}

/* -----------------------------------------
   活動グリッド（3列表示）
----------------------------------------- */
.activities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.concept-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid #f0f0f0;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}
.concept-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(132, 210, 229, 0.15);
}

.card-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    position: relative;
    overflow: hidden;
}
.card-img img {
    width: 100%; height: 100%; object-fit: cover;
}
.card-label {
    position: absolute; top: 15px; left: 15px;
    background: rgba(132, 210, 229, 0.9); color: #fff;
    font-size: 0.75rem; font-weight: bold; padding: 4px 12px;
    border-radius: 20px; text-transform: uppercase; letter-spacing: 0.05em;
}

.card-body {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.card-body h3 {
    font-size: 1.25rem; color: #333; margin: 0 0 15px 0; line-height: 1.3;
}
.sub-h {
    font-size: 0.95rem; color: #84D2E5; font-weight: bold;
}
.card-text {
    font-size: 0.92rem; line-height: 1.7; color: #555; margin-bottom: 20px;
}

/* ボタン */
.btn-detail {
    margin-top: auto;
    display: block;
    text-align: center;
    background-color: #fff;
    color: #84D2E5;
    border: 2px solid #84D2E5;
    text-decoration: none;
    padding: 10px;
    border-radius: 30px;
    font-weight: bold;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}
.btn-detail:hover {
    background-color: #84D2E5;
    color: #fff;
}
.no-link-space { height: 42px; } /* リンクがないカードの高さ合わせ */

/* -----------------------------------------
   サポーター・CTAセクションのコンパクト化
----------------------------------------- */
.support-compact {
    background: #fdfaf0; padding: 50px 40px; border-radius: 24px; border: 1px solid #fae8b4;
    margin-bottom: 60px;
}
.support-flex {
    display: flex; gap: 20px;
}
.support-box {
    flex: 1; background: #fff; padding: 25px; border-radius: 16px; border: 1px solid #eee;
}
.support-box h4 { color: #84D2E5; margin: 0 0 10px 0; font-size: 1.1rem; }
.support-box p { font-size: 0.9rem; line-height: 1.6; color: #666; margin: 0; }

.cta-block {
    text-align: center; background: #fff; padding: 40px; border-radius: 20px;
    border: 1px solid #f0f0f0; box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}
.cta-block p { font-size: 1rem; color: #444; margin-bottom: 25px; }
.btn-cta {
    display: inline-block; background-color: #84D2E5; color: #fff;
    text-decoration: none; padding: 16px 60px; font-size: 1.1rem; font-weight: bold;
    border-radius: 50px; transition: all 0.3s ease; box-shadow: 0 4px 10px rgba(132, 210, 229, 0.3);
}
.btn-cta:hover { transform: translateY(-3px); background-color: #72c1d4; }

/* -----------------------------------------
   レスポンシブ
----------------------------------------- */
@media screen and (max-width: 1024px) {
    .activities-grid { grid-template-columns: repeat(2, 1fr); }
    .support-flex { flex-direction: column; }
}

@media screen and (max-width: 600px) {
    .activities-grid { grid-template-columns: 1fr; }
    .page-title { font-size: 1.8rem; }
    .card-body { padding: 20px; }
    .btn-cta { width: 100%; box-sizing: border-box; padding: 15px; }
}