/* Chuẩn hóa tính toán kích thước tránh vỡ/tràn khung */
.featured-posts-container,
.featured-posts-container * {
    box-sizing: border-box;
}

.subheadhome {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.featured-posts-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
}

/* 1. KHỐI TEXTHOME (BO VIỀN MỜ) */
.texthome {
    width: 100%;
    margin: 10px 0;
    padding: 16px 20px;
    line-height: 1.6;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.texthome h2 {
    font-size: 22px;
    color: #1a202c;
    margin-bottom: 10px;
}

.texthome-desc {
    color: #4a5568;
    margin-bottom: 15px;
}

.texthome-features {
    list-style: none;
    padding-left: 0;
}

.texthome-features li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    color: #2d3748;
}

.texthome-features li::before {
    content: "✔";
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

/* 2. KHỐI DIV-FEATURED-POSTS (BO VIỀN MỜ BAO TIÊU ĐỀ + DANH SÁCH BÀI) */
.div-featured-posts {
    width: 100%;
    background: #ffffff;
    border: 1px solid #cbd5e1; /* Viền mờ màu xám đen */
    border-radius: 12px;       /* Bo góc khung */
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.featured-posts-title {
    font-size: 18px;
    font-weight: bold;
    color: #1e293b;
    margin: 0 0 16px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid #e2e8f0;
}

/* Lưới 2x2 cho danh sách bài viết */
.featured-posts-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    width: 100%;
}

.featured-post-item {
    display: flex;
    flex-direction: column;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease-in-out;
    width: 100%;
}

.featured-post-item:hover {
    border-color: #2563eb;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
    transform: translateY(-2px);
}

/* Khung chứa ảnh tỉ lệ 5:3 */
.featured-post-item .post-thumb {
    width: 100%;
    aspect-ratio: 5 / 3;
    overflow: hidden;
    background-color: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.featured-post-item .post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.featured-post-item:hover .post-thumb img {
    transform: scale(1.05);
}

.featured-post-item .post-content {
    padding: 10px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 1;
}

.featured-post-item .post-title {
    font-size: 14px;
    font-weight: 600;
    color: #0f172a;
    margin: 0 0 6px 0;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

.featured-post-item .post-date {
    font-size: 11px;
    color: #94a3b8;
}

/* 3. KHỐI VIDEO-CONTAINER (BO VIỀN MỜ) */
.video-container {
    width: 100%;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.video {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 8px;
    display: block;
}

/* RESPONSIVE MOBILE */
@media screen and (max-width: 768px) {
    .featured-posts-list {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .texthome, 
    .div-featured-posts, 
    .video-container {
        padding: 12px;
    }
}