/* CMS article page — layout, author, auto TOC */

.cms-article-page {
  --cms-toc-width: 15.5rem;
  --cms-page-max: 72rem;
  --cms-content-max: 42rem;
}

.cms-article-page__header-inner,
.cms-article-page__main-inner {
  max-width: var(--cms-page-max);
  margin-inline: auto;
}

.cms-article-page__header-inner {
  max-width: var(--cms-content-max);
}

@media (min-width: 1024px) {
  .cms-article-page {
    --cms-content-max: var(--cms-page-max);
  }

  .cms-article-page__header-inner {
    max-width: none;
  }
}

/* Meta row */
.cms-article-page__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  font-size: 0.8125rem;
  color: #6b7280;
  margin-bottom: 1rem;
}

.cms-article-page__meta-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  padding: 0.2rem 0.65rem;
  font-weight: 600;
  font-size: 0.75rem;
  line-height: 1.4;
}

.cms-article-page__meta-pill--branch {
  background: #f3f4f6;
  color: #374151;
  text-decoration: none;
  transition: color 0.15s;
}

.cms-article-page__meta-pill--branch:hover {
  color: #db2777;
}

.cms-article-page__meta-pill--guide {
  background: #eef2ff;
  color: #4338ca;
}

.cms-article-page__meta-pill--faq {
  background: #fffbeb;
  color: #b45309;
}

.cms-article-page__meta-sep {
  color: #d1d5db;
  user-select: none;
}

/* Title */
.cms-article-page__title {
  font-size: clamp(1.625rem, 4vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: #111827;
  margin: 0;
}

/* Author byline */
.cms-article-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid #e5e7eb;
}

.cms-article-author__avatar {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 9999px;
  object-fit: cover;
  border: 2px solid #fce7f3;
  background: #f9fafb;
  flex-shrink: 0;
}

.cms-article-author__info {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.cms-article-author__label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #9ca3af;
}

.cms-article-author__name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #111827;
}

.cms-article-author__role {
  font-size: 0.8125rem;
  color: #6b7280;
}

/* Cover */
.cms-article-page__cover {
  width: 100%;
  max-height: 20rem;
  object-fit: cover;
  border-radius: 1rem;
  border: 1px solid #e5e7eb;
  margin-bottom: 1.5rem;
}

/* Layout grid — stretch sidebar so sticky TOC có chiều cao scroll */
.cms-article-layout {
  display: grid;
  gap: 2rem;
  align-items: stretch;
}

@media (min-width: 1024px) {
  .cms-article-layout {
    grid-template-columns: minmax(0, 1fr) var(--cms-toc-width);
    gap: 2.5rem;
  }
}

.cms-article-layout__content {
  min-width: 0;
}

.cms-article-layout__sidebar {
  min-width: 0;
  display: none;
}

@media (min-width: 1024px) {
  .cms-article-layout__sidebar {
    display: block;
  }
}

.cms-article-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 1rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  overflow: hidden;
}

.cms-article-card__body {
  padding: 1.75rem 1.5rem;
}

@media (min-width: 640px) {
  .cms-article-card__body {
    padding: 2rem 2.25rem;
  }
}

@media (min-width: 768px) {
  .cms-article-card__body {
    padding: 2.5rem 2.75rem;
  }
}

@media (min-width: 1024px) {
  .cms-article-layout {
    gap: 3rem;
  }

  .cms-article-card__body {
    padding: 2.75rem 3rem;
  }

  /* Prose — dùng hết cột nội dung, cỡ chữ thoáng hơn trên PC */
  .cms-article-page .cms-article-body {
    max-width: none;
    margin-inline: 0;
    --cms-prose-size: 1.125rem;
    --cms-prose-lh: 1.82;
    font-size: var(--cms-prose-size);
    line-height: var(--cms-prose-lh);
    letter-spacing: 0.01em;
  }

  .cms-article-page .cms-article-body h2 {
    font-size: 1.625rem;
    margin-top: 2.1em;
    margin-bottom: 0.65em;
    padding-bottom: 0.45em;
  }

  .cms-article-page .cms-article-body h3 {
    font-size: 1.3125rem;
    margin-top: 1.65em;
  }

  .cms-article-page .cms-article-body p {
    margin-bottom: 1.35em;
  }

  .cms-article-page .cms-article-body li {
    margin-bottom: 0.5em;
  }

  .cms-article-page .cms-article-body ul,
  .cms-article-page .cms-article-body ol {
    margin-bottom: 1.35em;
    padding-left: 1.65em;
  }

  .cms-article-page .cms-article-body pre {
    font-size: 0.9375rem;
    padding: 1.125rem 1.25rem;
  }

  .cms-article-page .cms-article-body blockquote {
    margin: 1.75em 0;
    padding: 1em 1.35em;
  }

  .cms-article-page__title {
    font-size: clamp(1.875rem, 2.8vw, 2.5rem);
    line-height: 1.18;
  }

  .cms-article-page__footer {
    max-width: none;
  }
}

@media (min-width: 1280px) {
  .cms-article-page {
    --cms-page-max: 76rem;
    --cms-toc-width: 16.5rem;
  }

  .cms-article-card__body {
    padding: 3rem 3.5rem;
  }

  .cms-article-page .cms-article-body {
    --cms-prose-size: 1.1875rem;
    --cms-prose-lh: 1.85;
  }

  .cms-article-page .cms-article-body h2 {
    font-size: 1.75rem;
  }

  .cms-article-page .cms-article-body h3 {
    font-size: 1.375rem;
  }
}

/* Mobile TOC — FAB toggle + bottom drawer (ẩn mặc định) */
.cms-article-toc-fab {
  position: fixed;
  left: 1rem;
  bottom: 5.5rem;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 0.95rem;
  border: 1px solid #e5e7eb;
  border-radius: 9999px;
  background: #fff;
  color: #374151;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.12);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
}

.cms-article-toc-fab:not([hidden]) {
  animation: cms-toc-fab-in 0.25s ease;
}

.cms-article-toc-fab:hover {
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.16);
}

.cms-article-toc-fab.is-open {
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.5rem);
}

@media (min-width: 1024px) {
  .cms-article-toc-fab {
    display: none !important;
  }
}

@keyframes cms-toc-fab-in {
  from {
    opacity: 0;
    transform: translateY(0.75rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cms-article-toc-drawer {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
}

.cms-article-toc-drawer:not([hidden]) {
  pointer-events: auto;
}

.cms-article-toc-drawer__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.cms-article-toc-drawer.is-open .cms-article-toc-drawer__backdrop {
  opacity: 1;
}

.cms-article-toc-drawer__panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: min(72vh, 32rem);
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 1rem 1rem 0 0;
  box-shadow: 0 -8px 30px rgba(15, 23, 42, 0.12);
  transform: translateY(100%);
  transition: transform 0.28s cubic-bezier(0.32, 0.72, 0, 1);
}

.cms-article-toc-drawer.is-open .cms-article-toc-drawer__panel {
  transform: translateY(0);
}

.cms-article-toc-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.25rem 0.75rem;
  border-bottom: 1px solid #f3f4f6;
  flex-shrink: 0;
}

.cms-article-toc-drawer__title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: #111827;
}

.cms-article-toc-drawer__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: none;
  border-radius: 0.5rem;
  background: #f3f4f6;
  color: #6b7280;
  cursor: pointer;
}

.cms-article-toc-drawer__nav {
  overflow-y: auto;
  padding: 0.75rem 1rem 1.25rem;
  -webkit-overflow-scrolling: touch;
}

@media (min-width: 1024px) {
  .cms-article-toc-drawer {
    display: none !important;
  }
}

/* Desktop TOC sidebar — fixed theo scroll */
.cms-article-toc {
  height: 100%;
}

.cms-article-toc.is-hidden {
  display: none;
}

.cms-article-toc__sticky {
  position: sticky;
  top: 5rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
  padding: 1rem 0.75rem 1rem 1rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.875rem;
  background: #fff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
  scrollbar-width: thin;
}

.cms-article-toc__sticky::-webkit-scrollbar {
  width: 4px;
}

.cms-article-toc__sticky::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 4px;
}

.cms-article-toc__heading {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9ca3af;
  margin: 0 0 0.75rem;
}

.cms-article-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.cms-article-toc__item a {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: #6b7280;
  text-decoration: none;
  padding: 0.35rem 0.5rem;
  border-left: 2px solid transparent;
  border-radius: 0 0.375rem 0.375rem 0;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.cms-article-toc__item a:hover {
  color: #db2777;
  background: rgba(236, 72, 153, 0.06);
}

.cms-article-toc__item.is-active a {
  color: #db2777;
  font-weight: 600;
  border-left-color: #db2777;
  background: rgba(236, 72, 153, 0.08);
}

.cms-article-toc__item--h3 a {
  padding-left: 1rem;
  font-size: 0.78125rem;
}

/* Related links card */
.cms-article-related {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid #e5e7eb;
  border-radius: 1rem;
  background: #fff;
}

.cms-article-related__title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #9ca3af;
  margin: 0 0 1rem;
}

.cms-article-related__list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
}

.cms-article-related__list > li + li {
  margin-top: 0.5rem;
}

.cms-article-related a {
  color: #374151;
  text-decoration: none;
}

.cms-article-related a:hover {
  color: #db2777;
}

/* Footer nav */
.cms-article-page__footer {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid #e5e7eb;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cms-article-page__footer a {
  font-size: 0.875rem;
  font-weight: 500;
  color: #6b7280;
  text-decoration: none;
}

.cms-article-page__footer a:hover {
  color: #db2777;
}

/* Dark mode */
.dark .cms-article-page__title,
html.dark .cms-article-page__title {
  color: #f9fafb;
}

.dark .cms-article-author,
html.dark .cms-article-author {
  border-top-color: #374151;
}

.dark .cms-article-author__name,
html.dark .cms-article-author__name {
  color: #f3f4f6;
}

.dark .cms-article-page__meta-pill--branch,
html.dark .cms-article-page__meta-pill--branch {
  background: #374151;
  color: #e5e7eb;
}

.dark .cms-article-card,
html.dark .cms-article-card,
.dark .cms-article-related,
html.dark .cms-article-related {
  background: #1f2937;
  border-color: #374151;
}

.dark .cms-article-toc-fab,
html.dark .cms-article-toc-fab {
  background: #1f2937;
  border-color: #374151;
  color: #e5e7eb;
}

.dark .cms-article-toc-drawer__panel,
html.dark .cms-article-toc-drawer__panel {
  background: #1f2937;
}

.dark .cms-article-toc-drawer__header,
html.dark .cms-article-toc-drawer__header {
  border-bottom-color: #374151;
}

.dark .cms-article-toc-drawer__title,
html.dark .cms-article-toc-drawer__title {
  color: #f3f4f6;
}

.dark .cms-article-toc-drawer__close,
html.dark .cms-article-toc-drawer__close {
  background: #374151;
  color: #d1d5db;
}

.dark .cms-article-toc__sticky,
html.dark .cms-article-toc__sticky {
  background: #1f2937;
  border-color: #374151;
}

.dark .cms-article-toc__item a,
html.dark .cms-article-toc__item a {
  color: #9ca3af;
}

.dark .cms-article-page__footer,
html.dark .cms-article-page__footer {
  border-top-color: #374151;
}