/* ============================================================
 * IT LEARN — Blog public styles
 *   List grid, post card, single post layout, pagination, prose
 * ============================================================ */

/* Body theme — dùng red+navy default (page-blog không override) */
body.page-blog {
  --bg-glow-1: rgba(220, 38, 38, .35);
  --bg-glow-2: rgba(37, 99, 235, .30);
  --bg-glow-3: rgba(220, 38, 38, .12);
}

/* ─── Hero ─── */
.blog-hero {
  padding: 70px 24px 40px;
  text-align: center;
}
.blog-hero h1 { margin: 18px auto 0; max-width: 18ch; }
.blog-hero .lead { margin-top: 16px; }

/* ─── Category pills ─── */
.blog-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  padding: 0 24px 28px;
  max-width: 1100px;
  margin: 0 auto;
}
.blog-cats a {
  font-size: 13.5px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  color: var(--text-dim);
  transition: all .2s;
}
.blog-cats a:hover {
  border-color: var(--line-strong);
  color: var(--text);
}
.blog-cats a.active {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-red);
}

/* ─── List ─── */
.blog-list {
  padding: 12px 24px 80px;
  max-width: 1240px;
  margin: 0 auto;
  transition: opacity .2s ease;
}
.blog-list.is-loading { opacity: .45; pointer-events: none; }
.empty-state {
  text-align: center;
  color: var(--text-dim);
  padding: 60px 0;
}
.post-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
@media (min-width: 720px)  { .post-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .post-grid { grid-template-columns: repeat(3, 1fr); } }

/* ─── Post card ─── */
.post-card {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform .3s ease, border-color .25s, box-shadow .35s;
}
.post-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 30px 70px -30px rgba(0,0,0,.6);
}
.post-card-link { display: block; color: inherit; }
.post-card-cover {
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: rgba(255,255,255,.04);
}
.post-card-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .55s ease;
}
.post-card:hover .post-card-cover img { transform: scale(1.04); }
.post-card-cover-empty {
  display: grid; place-items: center;
  background: var(--grad);
}
.post-card-cover-empty span {
  font-family: var(--display);
  font-size: 64px;
  font-weight: 600;
  color: rgba(255,255,255,.85);
}
.post-card-body { padding: 22px 22px 24px; }
.post-card-cat {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--red-bright);
  padding: 4px 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  margin-bottom: 12px;
}
.post-card-title {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .005em;
  margin: 0 0 12px;
  color: var(--text);
}
.post-card-summary {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.75;
  letter-spacing: .01em;
  margin: 0 0 16px;
}
.post-card-meta {
  display: flex; gap: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-mute);
  letter-spacing: .04em;
}

/* ─── Pagination ─── */
.pagination {
  display: flex; gap: 6px;
  justify-content: center;
  margin: 50px 0 0;
}
.pagination a {
  min-width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid; place-items: center;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  color: var(--text-dim);
  font-size: 14px;
  font-family: var(--mono);
  transition: all .2s;
}
.pagination a:hover {
  border-color: var(--line-strong);
  color: var(--text);
}
.pagination a.active {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
}

/* ─── Single post ─── */
.blog-post {
  padding: 60px 24px 80px;
}
.post-cat-pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--red-bright);
  padding: 6px 14px;
  border: 1px solid currentColor;
  border-radius: 999px;
  margin-bottom: 18px;
}
.post-title {
  font-family: var(--display);
  font-size: clamp(32px, 4.4vw, 52px);
  letter-spacing: -.02em;
  line-height: 1.1;
  margin: 0 0 18px;
}
.post-meta {
  display: flex; gap: 8px; flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: .04em;
  margin-bottom: 32px;
}
.post-cover {
  margin: 0 0 32px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
}
.post-cover img { width: 100%; height: auto; display: block; }
.post-summary {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  padding: 18px 0 24px;
  margin: 0 0 24px;
  border-bottom: 1px solid var(--line);
  font-family: var(--display);
  font-weight: 400;
  font-style: italic;
}

/* ─── Prose: nội dung post từ TinyMCE ─── */
.post-content {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
}
.post-content > * + * { margin-top: 1em; }
.post-content h2 {
  font-family: var(--display);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.2;
  margin-top: 1.6em;
  margin-bottom: .4em;
}
.post-content h3 {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 600;
  margin-top: 1.4em;
  margin-bottom: .3em;
}
.post-content h4 {
  font-family: var(--display);
  font-size: 18px;
  font-weight: 600;
  margin-top: 1.2em;
  margin-bottom: .3em;
}
.post-content p { color: var(--text); }
.post-content a {
  color: var(--red-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.post-content a:hover { color: var(--text); }
.post-content strong, .post-content b { color: var(--text); font-weight: 700; }
.post-content em, .post-content i { font-style: italic; }
.post-content ul, .post-content ol {
  padding-left: 1.5em;
  color: var(--text);
}
.post-content li { margin: .35em 0; }
.post-content blockquote {
  border-left: 3px solid var(--red-bright);
  padding: 4px 18px;
  margin: 1.2em 0;
  color: var(--text-dim);
  font-style: italic;
  background: rgba(248,113,113,.04);
  border-radius: 0 8px 8px 0;
}
.post-content code {
  font-family: var(--mono);
  font-size: .92em;
  background: rgba(255,255,255,.06);
  padding: 2px 7px;
  border-radius: 5px;
  color: var(--red-bright);
}
.post-content pre {
  background: rgba(8,13,31,.7);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.6;
}
.post-content pre code { background: none; padding: 0; color: var(--text); }
.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 1.4em auto;
  display: block;
  border: 1px solid var(--line);
}
.post-content figure { margin: 1.4em 0; }
.post-content figure img { margin: 0 auto; }
.post-content figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 8px;
  font-style: italic;
}
.post-content hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2em 0;
}
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4em 0;
  font-size: 15px;
}
.post-content th, .post-content td {
  padding: 10px 14px;
  border: 1px solid var(--line);
  text-align: left;
}
.post-content th { background: rgba(255,255,255,.04); font-weight: 600; }

/* ─── Related ─── */
.blog-related {
  padding: 40px 24px 80px;
  max-width: 1240px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
}
.related-title {
  font-family: var(--display);
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 28px;
  text-align: center;
}