/* ============================================
   CADコラム 共通スタイル
   （/column/ 配下の一覧・カテゴリ・記事ページで読み込む）
   ============================================ */

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: #000000;
}

/* メニューの下線アニメーション */
.nav-link {
    text-decoration: none !important;
    position: relative;
    display: inline-block;
    padding-bottom: 4px;
    color: #000000;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #09a15a;
    transform: scale-x(0);
    opacity: 0;
    transform-origin: right;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-link:hover {
    color: #0d9656;
}

.nav-link:hover::after {
    transform: scale-x(1);
    opacity: 1;
    transform-origin: left;
}

/* 予約ボタン */
.btn-reserve {
    background-color: #FF8C00;
    border: 2px solid #FF8C00;
    color: #FFFFFF;
    transition: all 0.3s ease-in-out;
    cursor: pointer;
    border-radius: 6px;
}

.btn-reserve:hover {
    background-color: #fff7ed;
    color: #FE770D;
    border-color: #FE770D;
}

/* セクション仕切り（ページ上部の帯） */
.section-divider {
    position: relative;
    padding: 1.0rem 0;
    overflow: hidden;
}

@media (min-width: 1280px) {
    .section-divider {
        padding: 1.5rem 0;
    }
}

.section-divider .bg-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.section-divider .overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.10);
    z-index: 1;
}

.section-divider .content {
    position: relative;
    z-index: 10;
}

/* カテゴリ絞り込みボタン（一覧ページ） */
.col-filter-btn {
    border: 1.5px solid #d1d5db;
    color: #4b5563;
    background-color: #ffffff;
    transition: all 0.2s ease;
}

.col-filter-btn:hover {
    border-color: #05A85E;
    color: #05A85E;
}

.col-filter-btn.active-filter {
    background-color: #05A85E;
    border-color: #05A85E;
    color: #ffffff;
}

/* 記事カード */
.col-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.col-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

/* ============================================
   記事本文のスタイル（.article-body）
   ============================================ */
.article-body h2 {
    font-size: 1.4rem;
    font-weight: 800;
    color: #1f2937;
    line-height: 1.6;
    margin-top: 3rem;
    margin-bottom: 1.25rem;
    padding: 0.5rem 0 0.5rem 1rem;
    border-left: 6px solid #05A85E;
    background: linear-gradient(90deg, rgba(5, 168, 94, 0.08), rgba(5, 168, 94, 0));
}

.article-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #05A85E;
    line-height: 1.6;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.4rem;
    border-bottom: 2px dotted rgba(5, 168, 94, 0.4);
}

.article-body p {
    font-size: 1rem;
    line-height: 2;
    color: #374151;
    margin-bottom: 1.5rem;
}

.article-body ul {
    margin: 0 0 1.75rem;
    padding: 1.25rem 1.5rem;
    list-style: none;
    background: #f8faf9;
    border: 1px solid rgba(5, 168, 94, 0.15);
    border-radius: 0.75rem;
}

.article-body li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 0.75rem;
    line-height: 1.9;
    color: #374151;
}

.article-body li:last-child {
    margin-bottom: 0;
}

.article-body li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 0.7rem;
    height: 0.7rem;
    background-color: #05A85E;
    border-radius: 50%;
}

.article-body strong {
    color: #05A85E;
    font-weight: 700;
}

/* 記事内の表（資格の受験料一覧など） */
.article-body .table-wrap {
    overflow-x: auto;
    margin: 0 0 2rem;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 480px;
}

.article-body th,
.article-body td {
    border: 1px solid #e5e7eb;
    padding: 0.6rem 0.8rem;
    text-align: left;
    line-height: 1.7;
}

.article-body thead th {
    background: #05A85E;
    color: #ffffff;
    font-weight: 700;
    white-space: nowrap;
}

.article-body tbody th {
    background: #f8faf9;
    font-weight: 700;
    color: #1f2937;
}