/* ================================================= */
/* Topic */
/* ================================================= */
/* セクション全体 */
.topics-section {
    padding: 6rem 1.5rem;
    background-color: #f9f9f9;
}

/* グリッドレイアウト */
.topics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .topics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .topics-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* カード */
.topic-card {
    background-color: #fff;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

/* 画像 */
.topic-image {
    height: 12rem;
    background-size: cover;
    background-position: center;
}

/* コンテンツ */
.topic-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* メタ情報 */
.topic-meta {
    display: flex;
    gap: 0.5rem;
    font-size: 0.875rem;
    flex-direction: row;
    align-items: center;
    justify-content: start;
    color: #6b7280;
}

.label {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-weight: 500;
}

/* タイトル */
.topic-content > h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* テキスト */
.topic-content p {
    font-size: 1rem;
    color: var(--color-header-text);
}

/* リンク */
.read-more {
    font-weight: 500;
    color: #2563eb;
    text-decoration: none;
    margin-top: auto;
}

.read-more:hover {
    color: var(--color-secondary);
}