body.mce-content-body,
body.cke_editable,
.article-content {
    margin: 0;
    padding: 0;
    color: #334155;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 1rem;
    line-height: 1.75;
    word-break: break-word;
    overflow-wrap: anywhere;
}

body.mce-content-body *,
body.cke_editable *,
.article-content * {
    box-sizing: border-box;
    max-width: 100%;
}

body.mce-content-body > :first-child,
body.cke_editable > :first-child,
.article-content > :first-child {
    margin-top: 0;
}

body.mce-content-body > :last-child,
body.cke_editable > :last-child,
.article-content > :last-child {
    margin-bottom: 0;
}

body.mce-content-body h1,
body.mce-content-body h2,
body.mce-content-body h3,
body.mce-content-body h4,
body.mce-content-body h5,
body.mce-content-body h6,
body.cke_editable h1,
body.cke_editable h2,
body.cke_editable h3,
body.cke_editable h4,
body.cke_editable h5,
body.cke_editable h6,
.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
    margin: 1.5rem 0 0.75rem;
    color: #0f172a;
    line-height: 1.25;
    font-weight: 700;
}

body.mce-content-body h1,
body.cke_editable h1,
.article-content h1 {
    font-size: 2rem;
}

body.mce-content-body h2,
body.cke_editable h2,
.article-content h2 {
    font-size: 1.6rem;
}

body.mce-content-body h3,
body.cke_editable h3,
.article-content h3 {
    font-size: 1.3rem;
}

body.mce-content-body h4,
body.cke_editable h4,
.article-content h4 {
    font-size: 1.15rem;
}

body.mce-content-body h5,
body.cke_editable h5,
.article-content h5 {
    font-size: 1rem;
}

body.mce-content-body h6,
body.cke_editable h6,
.article-content h6 {
    font-size: 0.95rem;
}

body.mce-content-body p,
body.cke_editable p,
.article-content p {
    margin: 0 0 1rem;
}

body.mce-content-body mark,
body.cke_editable mark,
.article-content mark {
    padding: 0.08em 0.25em;
    background: #fef08a;
    color: inherit;
}

body.mce-content-body small,
body.cke_editable small,
.article-content small {
    font-size: 0.875em;
}

body.mce-content-body sup,
body.mce-content-body sub,
body.cke_editable sup,
body.cke_editable sub,
.article-content sup,
.article-content sub {
    position: relative;
    font-size: 0.75em;
    line-height: 0;
    vertical-align: baseline;
}

body.mce-content-body sup,
body.cke_editable sup,
.article-content sup { top: -0.5em; }

body.mce-content-body sub,
body.cke_editable sub,
.article-content sub { bottom: -0.25em; }

body.mce-content-body dl,
body.cke_editable dl,
.article-content dl {
    margin: 0 0 1rem;
}

body.mce-content-body dt,
body.cke_editable dt,
.article-content dt {
    margin-top: 0.75rem;
    font-weight: 700;
    color: #0f172a;
}

body.mce-content-body dd,
body.cke_editable dd,
.article-content dd {
    margin: 0.25rem 0 0 1.5rem;
}

body.mce-content-body kbd,
body.cke_editable kbd,
.article-content kbd {
    padding: 0.15em 0.4em;
    border: 1px solid #cbd5e1;
    border-bottom-width: 2px;
    border-radius: 0.35rem;
    background: #f8fafc;
    color: #0f172a;
    font-family: SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.875em;
}

body.mce-content-body div,
body.cke_editable div,
.article-content div {
    margin: 0;
}

body.mce-content-body ul,
body.mce-content-body ol,
body.cke_editable ul,
body.cke_editable ol,
.article-content ul,
.article-content ol {
    padding-left: 1.5rem;
    margin: 0 0 1rem;
}

body.mce-content-body li + li,
body.cke_editable li + li,
.article-content li + li {
    margin-top: 0.25rem;
}

body.mce-content-body blockquote,
body.cke_editable blockquote,
.article-content blockquote {
    margin: 1rem 0;
    padding: 1rem 1.1rem;
    border-left: 4px solid #cbd5e1;
    border-radius: 0 0.75rem 0.75rem 0;
    background: #f8fafc;
    color: #475569;
}

body.mce-content-body blockquote > :last-child,
body.cke_editable blockquote > :last-child,
.article-content blockquote > :last-child {
    margin-bottom: 0;
}

body.mce-content-body a,
body.cke_editable a,
.article-content a {
    color: #0d6efd;
    text-decoration: underline;
    text-underline-offset: 0.18em;
    word-break: break-word;
}

body.mce-content-body a:hover,
body.cke_editable a:hover,
.article-content a:hover {
    color: #0a58ca;
}

body.mce-content-body strong,
body.mce-content-body b,
body.cke_editable strong,
body.cke_editable b,
.article-content strong,
.article-content b {
    font-weight: 700;
    color: inherit;
}

body.mce-content-body em,
body.mce-content-body i,
body.cke_editable em,
body.cke_editable i,
.article-content em,
.article-content i {
    font-style: italic;
}

body.mce-content-body u,
body.cke_editable u,
.article-content u {
    text-decoration: underline;
    text-underline-offset: 0.18em;
}

body.mce-content-body img,
body.mce-content-body video,
body.cke_editable img,
body.cke_editable video,
.article-content img,
.article-content video {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    margin: 1rem auto;
}

body.mce-content-body iframe,
body.cke_editable iframe,
.article-content iframe {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    min-height: 0;
    border: 0;
    margin: 1rem 0;
}

body.mce-content-body video,
body.cke_editable video,
.article-content video {
    max-width: 100%;
    height: auto;
}

body.mce-content-body figure,
body.cke_editable figure,
.article-content figure {
    margin: 1rem 0;
}

body.mce-content-body figcaption,
body.cke_editable figcaption,
.article-content figcaption {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: #64748b;
}

body.mce-content-body img.alignleft,
body.mce-content-body figure.alignleft,
body.cke_editable img.alignleft,
body.cke_editable figure.alignleft,
.article-content img.alignleft,
.article-content figure.alignleft {
    float: left;
    margin: 0.25rem 1rem 1rem 0;
}

body.mce-content-body img.alignright,
body.mce-content-body figure.alignright,
body.cke_editable img.alignright,
body.cke_editable figure.alignright,
.article-content img.alignright,
.article-content figure.alignright {
    float: right;
    margin: 0.25rem 0 1rem 1rem;
}

body.mce-content-body img.aligncenter,
body.mce-content-body figure.aligncenter,
body.cke_editable img.aligncenter,
body.cke_editable figure.aligncenter,
.article-content img.aligncenter,
.article-content figure.aligncenter {
    display: block;
    margin: 1rem auto;
}

body.mce-content-body::after,
body.cke_editable::after,
.article-content::after {
    content: "";
    display: block;
    clear: both;
}

body.mce-content-body table,
body.cke_editable table,
.article-content table {
    width: 100%;
    min-width: 34rem;
    margin: 1rem 0;
    border-collapse: collapse;
    table-layout: auto;
}

body.mce-content-body table caption,
body.cke_editable table caption,
.article-content table caption {
    padding: 0.6rem 0;
    color: #64748b;
    font-size: 0.875rem;
    text-align: left;
}

body.mce-content-body table th,
body.mce-content-body table td,
body.cke_editable table th,
body.cke_editable table td,
.article-content table th,
.article-content table td {
    padding: 0.7rem 0.8rem;
    border: 1px solid #e2e8f0;
    vertical-align: top;
}

body.mce-content-body table,
body.cke_editable table,
.article-content table {
    display: block;
    overflow-x: auto;
}

body.mce-content-body table thead th,
body.cke_editable table thead th,
.article-content table thead th {
    background: #f8fafc;
    font-weight: 700;
}

body.mce-content-body hr,
body.cke_editable hr,
.article-content hr {
    margin: 1.25rem 0;
    border: 0;
    border-top: 1px solid #e2e8f0;
    opacity: 1;
}

body.mce-content-body pre,
body.cke_editable pre,
.article-content pre {
    margin: 0 0 1rem;
    padding: 1rem;
    overflow-x: auto;
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 0.75rem;
    white-space: pre-wrap;
    word-break: break-word;
}

body.mce-content-body code,
body.cke_editable code,
.article-content code {
    font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size: 0.95em;
}

body.mce-content-body pre code,
body.cke_editable pre code,
.article-content pre code {
    color: inherit;
}

body.mce-content-body [style*="text-align"],
body.cke_editable [style*="text-align"],
.article-content [style*="text-align"] {
    /* Keep alignment saved by TinyMCE inline styles visible in the preview. */
}

@media (max-width: 640px) {
    body.mce-content-body,
    body.cke_editable,
    .article-content {
        font-size: 0.975rem;
        line-height: 1.7;
    }

    body.mce-content-body h1,
    body.cke_editable h1,
    .article-content h1 { font-size: 1.65rem; }

    body.mce-content-body h2,
    body.cke_editable h2,
    .article-content h2 { font-size: 1.4rem; }

    body.mce-content-body table,
    body.cke_editable table,
    .article-content table { min-width: 30rem; }
}

/* Custom Colors & Spacing for Sidebar */
:root {
    --sb-primary: #ef0023;
    --sb-heading: #0F172A;
    --sb-muted: #64748B;
    --sb-border: #E2E8F0;
    --sb-bg-hover: #F8FAFC;
}

/* Tiêu đề Widget */
.widget-title-custom {
    color: var(--sb-heading);
    position: relative;
    padding-left: 14px;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
}
.widget-title-custom::before {
    content: '';
    position: absolute;
    left: 0;
    top: 2px;
    bottom: 2px;
    width: 4px;
    background-color: var(--sb-primary);
    border-radius: 4px;
}

/* Khoảng cách & đường phân cách giữa các bài viết */
.sidebar-post-item {
    padding-bottom: 14px;
    margin-bottom: 14px;
    border-bottom: 1px solid var(--sb-border);
    transition: background-color 0.2s ease, transform 0.2s ease;
    border-radius: 8px;
}
.sidebar-post-item:last-child {
    border-bottom: none !important;
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
}

/* Hover effect */
.sidebar-post-item:hover {
    background-color: var(--sb-bg-hover);
}
.sidebar-post-item:hover .post-item-title {
    color: var(--sb-primary) !important;
}
.sidebar-post-item:hover .img-hover-scale {
    transform: scale(1.06);
}

.post-item-title {
    color: var(--sb-heading);
    transition: color 0.2s ease;
}

.img-hover-scale {
    transition: transform 0.3s ease;
}

/* Badge Danh mục */
.category-badge {
    background-color: #EFF6FF;
    color: var(--sb-heading);
    font-size: 0.7rem;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 500;
}

/* Truncate tiêu đề 2 dòng */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}