/* =============================================
   Column Page Styles (コラム)
   Bootstrap 5 対応版
   ============================================= */

/* Column List Section */
.column-list-section {
    padding-top: 60px;
    padding-bottom: 80px;
}

/* Column Card */
.column-card {
    display: block;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.column-card:hover {
    transform: translateY(-5px);
}

.column-card:hover .column-card-image img {
    transform: scale(1.05);
}

/* Column Card Image */
.column-card-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #f5f5f5;
    border-radius: 5px;
    border: 1px solid #c5c5c5;
}

.column-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

/* Column Card Body */
.column-card-body {
    padding: 15px 5px;
}

/* Column Card Meta */
.column-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

/* Column Card Date */
.column-card-date {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: #888;
    letter-spacing: 0.05em;
}

/* Column Card Category */
.column-card-category {
    display: inline-block;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-size: 11px;
    color: #fff;
    background: #00479d;
    padding: 2px 8px;
    border-radius: 3px;
}

/* Column Card Title */
.column-card-title {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    font-size: 16px;
    font-weight: 500;
    color: #333;
    line-height: 1.7;
    margin-bottom: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.column-card:hover .column-card-title {
    color: #00479d;
}

.page-numbers {
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 0 !important;
}

.page-numbers li {
    background: #00479d;
    color: #fff;
    font-size: 20px;
    padding: 10px;
    margin: 5px;
}

.page-numbers li a {
    color: #fff;
}

.page-numbers li .current {
    font-weight: bold;
    color: #888;
}

/* =============================================
   Responsive Styles
   ============================================= */

/* Large devices (desktops, less than 1200px) */
@media (max-width: 1199.98px) {
    .column-card-title {
        font-size: 15px;
    }
}

/* Medium devices (tablets, less than 992px) */
@media (max-width: 991.98px) {
    .column-list-section {
        padding-top: 40px;
        padding-bottom: 60px;
    }

    .column-card-date {
        font-size: 13px;
    }

    .column-card-title {
        font-size: 14px;
        line-height: 1.6;
    }
}

/* Small devices (landscape phones, less than 768px) */
@media (max-width: 767.98px) {
    .column-list-section {
        padding-top: 30px;
        padding-bottom: 50px;
    }

    .column-card-body {
        padding: 12px 3px;
    }

    .column-card-meta {
        gap: 8px;
        margin-bottom: 5px;
    }

    .column-card-date {
        font-size: 12px;
    }

    .column-card-category {
        font-size: 10px;
        padding: 2px 6px;
    }

    .column-card-title {
        font-size: 13px;
        line-height: 1.5;
        -webkit-line-clamp: 4;
    }
}

/* Extra small devices (portrait phones, less than 576px) */
@media (max-width: 575.98px) {
    .column-list-section {
        padding-top: 20px;
        padding-bottom: 40px;
    }

    .column-card-image {
        border-radius: 3px;
    }

    .column-card-body {
        padding: 10px 2px;
    }

    .column-card-meta {
        gap: 6px;
        margin-bottom: 4px;
    }

    .column-card-date {
        font-size: 11px;
    }

    .column-card-category {
        font-size: 9px;
        padding: 1px 5px;
    }

    .column-card-title {
        font-size: 12px;
        line-height: 1.5;
    }
}