/* ==========================================================================
   Vatlieuso — blog.css
   Styles cho: Blog listing card, Single post, Page tĩnh, 404, Empty state
   Áp dụng khi: is_home, is_archive, is_category, is_singular (post), is_page, is_404
   ========================================================================== */

/* ==========================================================================
   BLOG GRID & CARD
   ========================================================================== */

.vls-news-hero {
  background: linear-gradient(180deg, #F8FAFC 0%, #fff 100%);
  border-bottom: 1px solid var(--border-1);
  padding: 28px 0 36px;
}
.vls-news-hero .vls-breadcrumb { margin-bottom: 18px; }
.vls-news-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}
.vls-news-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  padding: 6px 10px;
  background: #FFF7D6;
  border: 1px solid #F7C948;
  border-radius: 999px;
  color: #1F3355;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.vls-news-hero h1 {
  max-width: 880px;
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.05;
  letter-spacing: 0;
  color: #101828;
}
.vls-news-hero p {
  max-width: 920px;
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.62;
  color: #344054;
}
.vls-news-hero__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(110px, 1fr));
  gap: 10px;
}
.vls-news-hero__metrics div {
  padding: 14px 16px;
  background: #fff;
  border: 1px solid #E5E7EB;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(21,36,69,.06);
}
.vls-news-hero__metrics b {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  color: #1F3355;
}
.vls-news-hero__metrics span {
  display: block;
  margin-top: 2px;
  font-size: var(--fs-12);
  color: #667085;
}

.vls-news-topics {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 22px 0 0;
}
.vls-news-topic {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #fff;
  border: 1px solid #E5E7EB;
  border-radius: 999px;
  color: #344054;
  font-size: var(--fs-13);
  font-weight: 700;
  text-decoration: none;
  transition: all var(--dur-fast);
}
.vls-news-topic span {
  display: inline-flex;
  min-width: 22px;
  height: 22px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #F2F4F7;
  color: #667085;
  font-family: var(--font-mono);
  font-size: 11px;
}
.vls-news-topic:hover,
.vls-news-topic.is-active {
  border-color: #1F3355;
  background: #1F3355;
  color: #fff;
}
.vls-news-topic:hover span,
.vls-news-topic.is-active span {
  background: rgba(255,255,255,.14);
  color: #fff;
}

.vls-news-section {
  padding-top: 24px;
  padding-bottom: 72px;
}
.vls-news-featured {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(320px, .78fr);
  gap: 0;
  margin-bottom: 28px;
  background: #fff;
  border: 1px solid #E5E7EB;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 14px 34px rgba(21,36,69,.08);
}
.vls-news-featured__media {
  min-height: 320px;
  background: #F2F4F7;
  display: block;
}
.vls-news-featured__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.vls-news-featured__placeholder {
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #98A2B3;
  background: linear-gradient(135deg,#F8FAFC,#EEF2F6);
}
.vls-news-featured__body {
  padding: clamp(24px, 4vw, 42px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.vls-news-featured__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  color: #667085;
}
.vls-news-featured__meta a {
  color: #1F3355;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.vls-news-featured h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.12;
  letter-spacing: 0;
}
.vls-news-featured h2 a {
  color: #101828;
  text-decoration: none;
}
.vls-news-featured h2 a:hover { color: #1F3355; }
.vls-news-featured p {
  margin: 0 0 20px;
  color: #475467;
  font-size: var(--fs-15);
  line-height: 1.68;
}
.vls-news-featured__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 10px 14px;
  border-radius: 8px;
  background: #F7C948;
  color: #10203F;
  font-weight: 800;
  text-decoration: none;
}
.vls-news-featured__cta:hover {
  background: #F0B429;
  color: #081A34;
}

.vls-news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 28px;
  align-items: start;
}
.vls-news-block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.vls-news-block-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 24px;
  color: #101828;
}
.vls-news-block-head span {
  color: #667085;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
}
.vls-blog-grid--news {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.vls-news-sidebar {
  position: sticky;
  top: calc(var(--header-h,72px) + 18px);
  display: grid;
  gap: 14px;
}
.vls-news-side-card {
  background: #fff;
  border: 1px solid #E5E7EB;
  border-radius: 10px;
  padding: 18px;
  box-shadow: 0 8px 20px rgba(21,36,69,.05);
}
.vls-news-side-card h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: var(--fs-15);
  color: #101828;
}
.vls-news-side-card p {
  margin: 0 0 12px;
  color: #667085;
  line-height: 1.55;
  font-size: var(--fs-13);
}
.vls-news-side-card > a {
  display: inline-flex;
  padding: 8px 11px;
  border-radius: 8px;
  background: #1F3355;
  color: #fff;
  font-size: var(--fs-13);
  font-weight: 800;
  text-decoration: none;
}
.vls-news-side-topics {
  display: grid;
  gap: 8px;
}
.vls-news-side-topics a {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 10px;
  background: #F8FAFC;
  border: 1px solid #EEF0F3;
  border-radius: 8px;
  color: #344054;
  text-decoration: none;
  font-size: var(--fs-13);
  font-weight: 700;
}
.vls-news-side-topics span {
  color: #667085;
  font-family: var(--font-mono);
  font-size: 11px;
}
.vls-news-empty-note {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px;
  background: #FFF9E6;
  border: 1px solid #F7E3A1;
  border-radius: 10px;
  color: #475467;
  font-size: var(--fs-13);
}

.vls-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.vls-blog-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-1);
  border-radius: var(--r-3);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.vls-blog-card:hover {
  border-color: var(--border-2);
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}

/* Thumbnail */
.vls-blog-card__media {
  display: block;
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-sunken);
  flex-shrink: 0;
}

.vls-blog-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s var(--ease-out);
}

.vls-blog-card:hover .vls-blog-card__media img {
  transform: scale(1.04);
}

.vls-blog-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-3);
}

/* Card Body */
.vls-blog-card__body {
  padding: var(--sp-4);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.vls-blog-card__cat {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  transition: color var(--dur-fast);
}

.vls-blog-card__cat:hover {
  color: var(--accent-hover);
}

.vls-blog-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--fg-1);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-snug);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.vls-blog-card__title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast);
}

.vls-blog-card__title a:hover {
  color: var(--accent);
}

.vls-blog-card__excerpt {
  font-family: var(--font-body);
  font-size: var(--fs-14);
  color: var(--fg-2);
  line-height: var(--lh-normal);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

/* Card Footer */
.vls-blog-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--border-1);
}

.vls-blog-card__date {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--fg-3);
}

.vls-blog-card__read-more {
  font-family: var(--font-body);
  font-size: var(--fs-13);
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-fast);
}

.vls-blog-card__read-more:hover {
  color: var(--accent-hover);
}

/* ==========================================================================
   SINGLE POST
   ========================================================================== */

.vls-single-post {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.vls-single-post__header {
  margin-bottom: var(--sp-6);
}

.vls-single-post__cat {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  margin-bottom: var(--sp-3);
  transition: color var(--dur-fast);
}

.vls-single-post__cat:hover {
  color: var(--accent-hover);
}

.vls-single-post__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  color: var(--fg-1);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-snug);
  margin: 0 0 var(--sp-4);
}

.vls-single-post__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-4);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--fg-3);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--border-1);
}

.vls-single-post__meta-item {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

/* Featured image */
.vls-single-post__thumb {
  margin-bottom: var(--sp-6);
  border-radius: var(--r-3);
  overflow: hidden;
  background: var(--bg-sunken);
}

.vls-single-post__thumb img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Tags */
.vls-single-post__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-6);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--border-1);
}

/* ==========================================================================
   POST CONTENT (rich text)
   ========================================================================== */

.vls-post-content {
  font-family: var(--font-body);
  font-size: var(--fs-16);
  color: var(--fg-1);
  line-height: var(--lh-relaxed);
}

.vls-post-content h2 {
  font-family: var(--font-display);
  font-size: var(--fs-24);
  font-weight: 700;
  color: var(--fg-1);
  letter-spacing: var(--ls-tight);
  margin: var(--sp-8) 0 var(--sp-3);
}

.vls-post-content h3 {
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--fg-1);
  letter-spacing: var(--ls-tight);
  margin: var(--sp-6) 0 var(--sp-3);
}

.vls-post-content h4 {
  font-family: var(--font-display);
  font-size: var(--fs-18);
  font-weight: 600;
  color: var(--fg-1);
  margin: var(--sp-5) 0 var(--sp-2);
}

.vls-post-content p {
  margin: 0 0 var(--sp-4);
}

.vls-post-content ul,
.vls-post-content ol {
  margin: 0 0 var(--sp-4);
  padding-left: var(--sp-6);
}

.vls-post-content li {
  margin-bottom: var(--sp-2);
  line-height: var(--lh-relaxed);
}

.vls-post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--r-2);
  margin: var(--sp-4) 0;
}

.vls-post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--dur-fast);
}

.vls-post-content a:hover {
  color: var(--accent-hover);
}

/* Nút (.vls-btn) đặt trong nội dung prose: giữ style nút, không để prose-link đè màu/underline */
.vls-post-content a.vls-btn { text-decoration: none; }
.vls-post-content a.vls-btn--primary,
.vls-post-content a.vls-btn--primary:hover { color: #fff; }
.vls-post-content a.vls-btn--outline,
.vls-post-content a.vls-btn--outline:hover,
.vls-post-content a.vls-btn--ghost,
.vls-post-content a.vls-btn--ghost:hover { color: var(--fg-1); }

.vls-post-content blockquote {
  margin: var(--sp-6) 0;
  padding: var(--sp-4) var(--sp-6);
  border-left: 3px solid var(--accent);
  background: var(--bg-sunken);
  border-radius: 0 var(--r-2) var(--r-2) 0;
  font-style: italic;
  color: var(--fg-2);
}

.vls-post-content blockquote p:last-child {
  margin-bottom: 0;
}

.vls-post-content pre {
  background: var(--c-cement-700);
  color: var(--c-paper);
  padding: var(--sp-4);
  border-radius: var(--r-2);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  margin: var(--sp-4) 0;
}

.vls-post-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-sunken);
  padding: 2px 6px;
  border-radius: var(--r-1);
  color: var(--fg-1);
}

.vls-post-content pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  color: inherit;
}

.vls-post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--sp-4) 0;
  font-size: var(--fs-14);
}

.vls-post-content table th {
  background: var(--bg-sunken);
  font-family: var(--font-body);
  font-weight: 700;
  text-align: left;
  padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--border-1);
  color: var(--fg-1);
}

.vls-post-content table td {
  padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--border-1);
  color: var(--fg-2);
}

.vls-post-content table tr:nth-child(even) td {
  background: var(--bg-sunken);
}

/* Paged post links */
.vls-post-pages {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
  margin: var(--sp-6) 0;
  font-family: var(--font-body);
  font-size: var(--fs-14);
  color: var(--fg-2);
}

.vls-post-page-link a,
.vls-post-page-link span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 var(--sp-2);
  border: 1px solid var(--border-1);
  border-radius: var(--r-1);
  font-weight: 600;
  color: var(--fg-2);
  text-decoration: none;
  transition: border-color var(--dur-fast), color var(--dur-fast), background var(--dur-fast);
}

.vls-post-page-link a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ==========================================================================
   POST NAVIGATION (Prev / Next)
   ========================================================================== */

.vls-post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--border-1);
}

.vls-post-nav__item {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  padding: var(--sp-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-1);
  border-radius: var(--r-2);
  text-decoration: none;
  transition: border-color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}

.vls-post-nav__item:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.vls-post-nav__item--next {
  text-align: right;
}

.vls-post-nav__label {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-3);
}

.vls-post-nav__item--next .vls-post-nav__label {
  justify-content: flex-end;
}

.vls-post-nav__title {
  font-family: var(--font-display);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--fg-1);
  line-height: var(--lh-snug);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Comments area */
.vls-post-comments {
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--border-1);
}

.vls-post-comments .comment-respond,
.vls-post-comments .comments-title {
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--fg-1);
  margin-bottom: var(--sp-4);
}

/* ==========================================================================
   PAGE TĨNH
   ========================================================================== */

.vls-page-content {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.vls-page-content__header {
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--border-1);
}

.vls-page-content__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 700;
  color: var(--fg-1);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-snug);
  margin: 0;
}

.vls-page-content__thumb {
  margin-bottom: var(--sp-6);
  border-radius: var(--r-3);
  overflow: hidden;
}

.vls-page-content__thumb img {
  width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   404 PAGE
   ========================================================================== */

.vls-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--sp-20) 0;
}

.vls-404__code {
  font-family: var(--font-display);
  font-size: clamp(80px, 15vw, 160px);
  font-weight: 700;
  color: var(--border-2);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: var(--sp-6);
  user-select: none;
}

.vls-404__title {
  font-family: var(--font-display);
  font-size: var(--fs-28);
  font-weight: 700;
  color: var(--fg-1);
  letter-spacing: var(--ls-tight);
  margin: 0 0 var(--sp-3);
}

.vls-404__sub {
  font-family: var(--font-body);
  font-size: var(--fs-16);
  color: var(--fg-2);
  line-height: var(--lh-normal);
  max-width: 480px;
  margin: 0 0 var(--sp-8);
}

.vls-404__search {
  display: flex;
  gap: var(--sp-2);
  width: 100%;
  max-width: 480px;
  margin-bottom: var(--sp-8);
}

.vls-404__search-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border-2);
  border-radius: var(--r-2);
  font-family: var(--font-body);
  font-size: var(--fs-14);
  color: var(--fg-1);
  background: var(--bg-surface);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}

.vls-404__search-input::placeholder {
  color: var(--fg-muted);
}

.vls-404__search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(31, 51, 85, 0.1);
}

.vls-404__cats-label {
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: var(--sp-3);
}

.vls-404__cats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
}

.vls-404__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
}

/* ==========================================================================
   EMPTY STATE (content-none.php)
   ========================================================================== */

.vls-content-none {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--sp-16) var(--sp-6);
  gap: var(--sp-4);
}

.vls-content-none__icon {
  color: var(--fg-3);
  margin-bottom: var(--sp-2);
}

.vls-content-none__title {
  font-family: var(--font-display);
  font-size: var(--fs-24);
  font-weight: 700;
  color: var(--fg-1);
  letter-spacing: var(--ls-tight);
  margin: 0;
}

.vls-content-none__title em {
  font-style: normal;
  color: var(--accent);
}

.vls-content-none__sub {
  font-family: var(--font-body);
  font-size: var(--fs-14);
  color: var(--fg-2);
  line-height: var(--lh-normal);
  max-width: 420px;
  margin: 0;
}

.vls-content-none__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
  margin-top: var(--sp-2);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 1024px) {
  .vls-blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .vls-news-hero__inner,
  .vls-news-featured,
  .vls-news-layout {
    grid-template-columns: 1fr;
  }

  .vls-news-hero__metrics {
    max-width: 360px;
  }

  .vls-news-sidebar {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .vls-blog-grid {
    grid-template-columns: 1fr;
  }

  .vls-blog-grid--news,
  .vls-news-sidebar {
    grid-template-columns: 1fr;
  }

  .vls-news-featured__media,
  .vls-news-featured__placeholder {
    min-height: 220px;
  }

  .vls-news-hero__metrics {
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .vls-post-nav {
    grid-template-columns: 1fr;
  }

  .vls-single-post__meta {
    gap: var(--sp-3);
  }

  .vls-404 {
    padding: var(--sp-12) 0;
  }

  .vls-404__search {
    flex-direction: column;
  }

  .vls-page-content__title {
    font-size: var(--fs-28);
  }
}

@media (max-width: 480px) {
  .vls-404__code {
    font-size: 96px;
  }

  .vls-blog-card__body {
    padding: var(--sp-3);
  }
}

/* Tin tức archive polish */
.vls-news-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0D1832 0%, #1F3355 58%, #10203F 100%);
  border-bottom: 4px solid #F7C948;
  color: #fff;
  padding: 34px 0 48px;
}
.vls-news-hero .vls-breadcrumb,
.vls-news-hero .vls-breadcrumb a { color: rgba(255,255,255,.72); }
.vls-news-hero .vls-breadcrumb a:hover { color: #F7C948; }
.vls-news-hero .vls-breadcrumb b { color: #fff; }
.vls-news-hero .vls-breadcrumb__sep { color: rgba(255,255,255,.32); }
.vls-news-hero__kicker {
  background: rgba(247,201,72,.12);
  border-color: rgba(247,201,72,.44);
  color: #F7C948;
}
.vls-news-hero h1 { color: #fff; }
.vls-news-hero p { color: rgba(255,255,255,.78); }
.vls-news-hero__metrics div {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.16);
  box-shadow: none;
}
.vls-news-hero__metrics b { color: #F7C948; }
.vls-news-hero__metrics span { color: rgba(255,255,255,.68); }
.vls-news-topics {
  margin-top: -22px;
  padding: 14px;
  background: #fff;
  border: 1px solid #E4E7EC;
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(16,24,40,.08);
  position: relative;
  z-index: 2;
}
.vls-news-section { padding-top: 30px; }
.vls-news-featured,
.vls-news-side-card,
.vls-blog-card {
  border-radius: 8px;
  border-color: #E4E7EC;
  box-shadow: 0 12px 34px rgba(16,24,40,.07);
}
.vls-news-featured__cta,
.vls-news-side-card > a {
  background: #F7C948;
  color: #10203F;
}
.vls-news-featured__cta:hover,
.vls-news-side-card > a:hover {
  background: #F0B429;
  color: #081A34;
}
.vls-news-block-head {
  padding: 0 0 12px;
  border-bottom: 1px solid #EAECF0;
}
.vls-news-block-head h2 { font-size: 28px; }
.vls-news-side-card { border-top: 4px solid #F7C948; }

/* Single article upgrade */
body.single-post {
  background: #F8FAFC;
}

body.single-post .vls-section {
  padding-top: 34px;
  padding-bottom: 76px;
}

body.single-post .vls-breadcrumb {
  margin-bottom: 22px;
  padding: 10px 0;
}

.vls-single-post {
  max-width: none;
  margin: 0;
}

.vls-single-post__hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 28px;
  align-items: stretch;
  margin-bottom: 28px;
  padding: 34px;
  border: 1px solid #E4E7EC;
  border-radius: 8px;
  background:
    linear-gradient(135deg, #FFFFFF 0%, #F8FAFC 58%, #FFF7E0 100%);
  box-shadow: 0 20px 58px rgba(16, 24, 40, .08);
}

.vls-single-post__hero-main {
  min-width: 0;
}

.vls-single-post__cat {
  width: fit-content;
  margin-bottom: 14px;
  padding: 7px 11px;
  border: 1px solid rgba(247, 201, 72, .6);
  border-radius: 8px;
  background: #FFFAEB;
  color: #8A5A00;
  letter-spacing: .08em;
}

.vls-single-post__cat:hover {
  color: #10203F;
  background: #F7C948;
}

.vls-single-post__title {
  max-width: 920px;
  margin-bottom: 16px;
  color: #101828;
  font-size: clamp(34px, 4vw, 58px);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.08;
}

.vls-single-post__excerpt {
  max-width: 850px;
  margin: 0 0 22px;
  color: #475467;
  font-size: 18px;
  line-height: 1.65;
}

.vls-single-post__meta {
  gap: 10px;
  padding-top: 0;
  border-top: 0;
}

.vls-single-post__meta-item {
  min-height: 34px;
  padding: 0 11px;
  border: 1px solid #EAECF0;
  border-radius: 8px;
  background: #fff;
  color: #475467;
  box-shadow: 0 6px 18px rgba(16, 24, 40, .04);
}

.vls-single-post__hero-side {
  display: flex;
  align-items: stretch;
}

.vls-single-post__hero-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 22px;
  border: 1px solid rgba(31, 51, 85, .16);
  border-radius: 8px;
  background: #10203F;
  color: #fff;
}

.vls-single-post__hero-card span {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #F7C948;
}

.vls-single-post__hero-card b {
  font-size: 21px;
  line-height: 1.3;
}

.vls-single-post__hero-card a,
.vls-post-sidebox--cta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 8px;
  background: #F7C948;
  color: #10203F;
  font-weight: 800;
  text-decoration: none;
}

.vls-single-post__layout {
  display: grid;
  grid-template-columns: minmax(0, 820px) 330px;
  gap: 28px;
  align-items: start;
}

.vls-single-post__main {
  min-width: 0;
}

.vls-single-post__thumb,
.vls-post-content,
.vls-post-author,
.vls-post-nav__item,
.vls-post-sidebox {
  border-radius: 8px;
  border: 1px solid #E4E7EC;
  background: #fff;
  box-shadow: 0 14px 40px rgba(16, 24, 40, .06);
}

.vls-single-post__thumb {
  margin-bottom: 18px;
}

.vls-single-post__thumb img {
  border-radius: 8px;
}

.vls-post-content {
  padding: 34px 38px;
  font-size: 18px;
  line-height: 1.75;
}

.vls-post-content > p:first-child {
  font-size: 19px;
  color: #344054;
}

.vls-post-content h2 {
  position: relative;
  margin-top: 42px;
  margin-bottom: 16px;
  padding-top: 18px;
  border-top: 1px solid #EAECF0;
  color: #10203F;
  font-size: 28px;
  letter-spacing: 0;
  scroll-margin-top: 110px;
}

.vls-post-content h2::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 76px;
  height: 3px;
  background: #F7C948;
}

.vls-post-content h3 {
  margin-top: 28px;
  color: #1F3355;
  font-size: 22px;
  letter-spacing: 0;
  scroll-margin-top: 110px;
}

.vls-post-content p {
  margin-bottom: 18px;
}

.vls-post-content ul,
.vls-post-content ol {
  padding-left: 0;
  list-style: none;
}

.vls-post-content li {
  position: relative;
  margin-bottom: 12px;
  padding-left: 28px;
}

.vls-post-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #F7C948;
  box-shadow: 0 0 0 4px #FFF7E0;
}

.vls-post-content table {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 0 0 1px #E4E7EC;
}

.vls-post-content table th {
  background: #10203F;
  color: #fff;
}

.vls-post-author {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  margin-top: 18px;
  padding: 20px;
}

.vls-post-author__avatar {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 8px;
  background: #1F3355;
  color: #F7C948;
  font-family: var(--font-mono);
  font-weight: 800;
}

.vls-post-author span {
  display: block;
  color: #667085;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.vls-post-author b {
  display: block;
  margin: 3px 0 6px;
  color: #101828;
}

.vls-post-author p {
  margin: 0;
  color: #475467;
  line-height: 1.55;
}

/* ── Hộp biên tập — nâng cấp ──────────────────────────────── */
.vls-post-author__avatar { font-size: 15px; letter-spacing: .04em; }
.vls-post-author span.vls-post-author__label {
  display: inline-flex !important;
  align-items: center;
  gap: 5px;
  color: #0E8F4A;
  letter-spacing: .04em;
}
.vls-post-author__label svg { color: #0E8F4A; }
.vls-post-author b { font-size: 16px; font-weight: 700; margin: 5px 0 3px; }
.vls-post-author__role { color: #475467 !important; font-weight: 500; margin-bottom: 10px !important; }
.vls-post-author__dates { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 0 0 12px; }
.vls-post-author__dates span {
  display: inline-flex !important;
  align-items: center;
  gap: 5px;
  color: #667085;
  font-size: 12.5px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
}
.vls-post-author__dates svg { color: #98A2B3; }
.vls-post-author__note {
  font-size: 13px;
  color: #667085 !important;
  border-top: 1px solid #E4E7EC;
  padding-top: 10px;
  margin-top: 2px;
}

.vls-single-post__sidebar {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 16px;
}

.vls-post-sidebox {
  padding: 18px;
}

.vls-post-sidebox h2 {
  margin: 0 0 12px;
  color: #101828;
  font-size: 17px;
  letter-spacing: 0;
}

.vls-post-sidebox p {
  margin: 0 0 14px;
  color: #475467;
  line-height: 1.55;
}

.vls-post-toc {
  display: grid;
  gap: 8px;
}

.vls-post-toc a,
.vls-post-related a {
  color: #344054;
  text-decoration: none;
}

.vls-post-toc a {
  padding: 9px 10px;
  border-radius: 8px;
  background: #F8FAFC;
  font-size: 14px;
  line-height: 1.35;
}

.vls-post-toc__h3 {
  padding-left: 22px !important;
  color: #667085 !important;
}

.vls-post-toc a:hover,
.vls-post-related a:hover b {
  color: #8A5A00;
}

.vls-post-sidebox--cta {
  border-color: #F7C948;
  background: #FFFAEB;
}

.vls-post-related {
  display: grid;
  gap: 12px;
}

.vls-post-related a {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid #EAECF0;
}

.vls-post-related a:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.vls-post-related span {
  color: #98A2B3;
  font-family: var(--font-mono);
  font-size: 11px;
}

.vls-post-related b {
  color: #101828;
  font-size: 14px;
  line-height: 1.35;
}

.vls-single-post__tags {
  margin-top: 18px;
  padding-top: 0;
  border-top: 0;
}

.vls-post-nav {
  margin-top: 18px;
  padding-top: 0;
  border-top: 0;
}

@media (max-width: 1080px) {
  .vls-single-post__hero,
  .vls-single-post__layout {
    grid-template-columns: 1fr;
  }

  .vls-single-post__sidebar {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  body.single-post .vls-section {
    padding-top: 22px;
    padding-bottom: 46px;
  }

  .vls-single-post__hero {
    padding: 22px;
  }

  .vls-single-post__title {
    font-size: clamp(30px, 9vw, 42px);
  }

  .vls-single-post__excerpt,
  .vls-post-content > p:first-child {
    font-size: 17px;
  }

  .vls-post-content {
    padding: 24px 20px;
    font-size: 16px;
  }

  .vls-post-content h2 {
    font-size: 24px;
  }

  .vls-single-post__sidebar {
    grid-template-columns: 1fr;
  }

  .vls-post-author {
    grid-template-columns: 1fr;
  }
}