/* =========================================================
   column.css — コラム一覧ページ専用
   ========================================================= */
/* コラム一覧 */
.column-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 20px;
    padding-bottom: 60px;
}

.column-card {
    display: block;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(58,40,32,.05);
    transition: transform .2s ease, box-shadow .2s ease;
}

.column-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(58,40,32,.1);
}

.column-card-thumb {
    height: 150px;
    background-size: cover;
    background-position: center;
}

.thumb-a {
    background-image: url("https://images.pexels.com/photos/8520485/pexels-photo-8520485.jpeg?auto=compress&cs=tinysrgb&w=500&h=340&fit=crop");
}

.thumb-b {
    background-image: url("https://images.pexels.com/photos/7714278/pexels-photo-7714278.jpeg?auto=compress&cs=tinysrgb&w=500&h=340&fit=crop");
}

.thumb-c {
    background-image: url("https://images.pexels.com/photos/2592179/pexels-photo-2592179.jpeg?auto=compress&cs=tinysrgb&w=500&h=340&fit=crop");
}

.thumb-d {
    background-image: url("https://images.pexels.com/photos/210874/pexels-photo-210874.jpeg?auto=compress&cs=tinysrgb&w=500&h=340&fit=crop");
}

.thumb-e {
    background-image: url("https://images.pexels.com/photos/8520442/pexels-photo-8520442.jpeg?auto=compress&cs=tinysrgb&w=500&h=340&fit=crop");
}

.thumb-f {
    background-image: url("https://images.pexels.com/photos/34583/pexels-photo.jpg?auto=compress&cs=tinysrgb&w=500&h=340&fit=crop");
}

.column-card-body {
    padding: 16px;
}

.column-tag {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    background: #fdf1f2;
    color: var(--pink);
    border-radius: 10px;
    padding: 3px 9px;
    margin-bottom: 8px;
}

.column-card h2 {
    font-size: 18px;
    margin: 0 0 8px;
    line-height: 1.5;
}

.column-card p {
    font-size: 12px;
    color: var(--muted);
    margin: 0 0 10px;
}

.column-date {
    font-size: 11px;
    color: #aaa;
}

/* ==================== レスポンシブ（メディアクエリ） ==================== */
@media (max-width: 980px) {
    .column-grid {
        grid-template-columns: repeat(2,1fr);
    }
}

@media (max-width: 640px) {
    .column-grid {
        grid-template-columns: repeat(2,1fr);
        gap: 12px;
    }

    .column-card-thumb {
        height: 110px;
    }

    .column-card-body {
        padding: 12px;
    }

    .column-card h2 {
        font-size: 15px;
    }
}