/* blog-style.css */

.blog-layout {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 30px;
}

.blog-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* --- 記事カード --- */
.post-card {
    text-decoration: none;
    color: var(--primary-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.post-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-content {
    padding: 20px;
}

.post-meta {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 0.9rem;
}

.post-category {
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 500;
    color: #fff;
}
.post-category.beginner { background-color: #4D8AFF; }
.post-category.trend { background-color: #2EBE77; }
.post-category.tech { background-color: #f0ad4e; }

.post-date {
    color: var(--secondary-color);
}

.post-title {
    font-size: 1.5rem;
    margin: 0 0 10px;
}

.post-excerpt {
    color: var(--secondary-color);
    margin: 0;
    line-height: 1.7;
}

/* --- サイドバー --- */
.sidebar .widget {
    padding: 20px;
}
.sidebar h4 {
    margin-top: 0;
    font-size: 1.2rem;
    border-bottom: 2px solid var(--glass-border);
    padding-bottom: 10px;
    margin-bottom: 15px;
}
.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.sidebar ul li a {
    text-decoration: none;
    color: var(--secondary-color);
    padding: 8px 0;
    display: block;
    transition: color 0.3s ease;
}
.sidebar ul li a:hover {
    color: var(--primary-color);
}

/* --- 個別記事ページ --- */
.post-article {
    padding: 40px;
}

.post-header {
    text-align: center;
    margin-bottom: 30px;
}
.post-header h1 {
    font-size: 2.8rem;
    margin: 10px 0;
}
.post-date-single {
    color: var(--secondary-color);
}

.post-main-image {
    width: 100%;
    border-radius: 16px;
    margin-bottom: 30px;
}

.post-body {
    font-size: 1.1rem;
    line-height: 2;
    color: #e0e0e0;
}
.post-body h2 {
    font-size: 2rem;
    margin-top: 40px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--glass-border);
}
.post-body p {
    margin-bottom: 20px;
}
.post-body a {
    color: var(--accent-color);
}

.recommend-box {
    background-color: rgba(77, 138, 255, 0.1);
    border: 2px solid rgba(77, 138, 255, 0.3);
    border-radius: 16px;
    padding: 25px;
    margin: 30px 0;
}
.recommend-box h4 {
    margin-top: 0;
    font-size: 1.4rem;
}
.recommend-box .btn {
    margin-top: 15px;
    margin-right: 10px;
}


/* --- レスポンシブ対応 --- */
@media (max-width: 992px) {
    .blog-layout { grid-template-columns: 1fr; }
    .sidebar { display: none; /* simple hide for mobile */ }
}
@media (max-width: 768px) {
    .post-article { padding: 20px; }
    .post-header h1 { font-size: 2rem; }
    .post-body h2 { font-size: 1.6rem; }
}