/*
   KBW Digital — Blog module
   Nạp sau style.css và content.css cho home.php, archive.php và single.php.
   Bài viết không render khối bình luận nên file này không có style cho comments.
   ========================================================================== */

/* ==========================================================================
   1. HERO & BREADCRUMB
   ========================================================================== */

.blog-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-bottom: 36px;
  background: linear-gradient(180deg, #ffffff 0%, var(--slate-50) 100%);
}

.blog-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.blog-hero__aurora {
  position: absolute;
  inset: -30% -10% auto -10%;
  height: 70%;
  background:
    radial-gradient(60% 70% at 15% 20%, rgba(47, 107, 255, 0.16), transparent 70%),
    radial-gradient(50% 60% at 85% 10%, rgba(0, 211, 167, 0.14), transparent 72%);
}

.blog-hero__spot {
  position: absolute;
  right: -6rem;
  bottom: -8rem;
  width: 22rem;
  height: 22rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 107, 255, 0.12), transparent 68%);
}

.blog-crumb {
  padding-top: calc(var(--header-h) + var(--space-5));
}

.blog-crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

.blog-crumb__item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.blog-crumb__link {
  color: var(--text-faint);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.blog-crumb__link:hover {
  color: var(--blue-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-crumb__sep {
  display: inline-flex;
  color: var(--slate-400);
}

.blog-crumb__sep svg { display: block; }

.blog-crumb__current {
  display: -webkit-box;
  overflow: hidden;
  max-width: 42ch;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  color: var(--ink-700);
  font-weight: 600;
}

.blog-hero__inner {
  padding-top: 1rem;
}

.blog-hero__title {
  width: 100%;
  max-width: none;
  margin: var(--space-4) 0 0;
  font-size: var(--fs-display);
  line-height: 1.14;
  letter-spacing: -0.025em;
  color: var(--ink-800);
}

.blog-hero__lede {
  width: 100%;
  max-width: none;
  margin: var(--space-4) 0 0;
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-soft);
  text-wrap: pretty;
}

/* ==========================================================================
   2. LIST HEAD & FILTERS
   ========================================================================== */

.blog-list {
  padding: clamp(2.5rem, 2rem + 2vw, 4rem) 0 var(--section-y);
  background: #fff;
}

.blog-list__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.blog-list__title {
  margin: 0;
  font-size: var(--fs-h3);
  color: var(--ink-800);
}

.blog-list__count {
  margin: 0;
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: clamp(1.5rem, 1.25rem + 1vw, 2.25rem);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}

.blog-filters__chip {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: #fff;
  color: var(--text-soft);
  font-size: var(--fs-xs);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.blog-filters__chip:hover {
  border-color: var(--blue-400);
  color: var(--blue-600);
}

.blog-filters__chip.is-active {
  border-color: var(--ink-800);
  background: var(--ink-800);
  color: #fff;
}

/* ==========================================================================
   3. GRID & CARD
   ========================================================================== */

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 0.75rem + 1vw, 1.75rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.blog-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: #fff;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease-out),
    box-shadow var(--dur) var(--ease);
}

.blog-card:hover {
  border-color: var(--blue-400);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.blog-card__media {
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: var(--slate-50);
}

.blog-card__media-link {
  display: block;
  text-decoration: none;
}

.blog-card__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.blog-card__ph {
  display: grid;
  align-content: start;
  gap: 0.65rem;
  aspect-ratio: 16 / 9;
  padding: 0.85rem;
  background: linear-gradient(160deg, var(--slate-100), #fff);
}

.blog-card__bar {
  display: flex;
  gap: 0.3rem;
}

.blog-card__bar i {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--slate-300);
}

.blog-card__body {
  display: grid;
  gap: 0.55rem;
}

.blog-card__block {
  height: 2.6rem;
  border-radius: var(--radius-sm);
  background: var(--slate-200);
}

.blog-card__lines {
  display: grid;
  gap: 0.35rem;
}

.blog-card__lines i {
  height: 0.45rem;
  border-radius: var(--radius-pill);
  background: var(--slate-200);
}

.blog-card__lines i:nth-child(2) { width: 80%; }
.blog-card__lines i:nth-child(3) { width: 55%; }

.blog-card__main {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: var(--space-5);
}

.blog-card__tag {
  margin: 0 0 var(--space-2);
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-card__tag a {
  color: var(--blue-600);
  text-decoration: none;
}

.blog-card__tag a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-card__title {
  margin: 0;
  font-size: var(--fs-h4);
  line-height: 1.4;
  color: var(--ink-800);
}

.blog-card__title a {
  color: inherit;
  text-decoration: none;
}

.blog-card__title a:hover {
  color: var(--blue-600);
}

.blog-card__summary {
  display: -webkit-box;
  overflow: hidden;
  margin: var(--space-3) 0 0;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  color: var(--text-soft);
  font-size: var(--fs-sm);
  line-height: 1.7;
  text-wrap: pretty;
}

.blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: var(--space-4) 0 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: var(--fs-xs);
}

.blog-card__meta { margin-top: auto; }

.blog-card__dot { color: var(--slate-300); }

.blog-pagination { margin-top: clamp(2rem, 1.5rem + 1.5vw, 3rem); }

.blog-empty { margin-top: var(--space-5); }

/* ==========================================================================
   4. SINGLE POST
   ========================================================================== */

.blog-single__title {
  max-width: none;
  font-size: 36px;
}

.blog-single__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin: var(--space-5) 0 0;
  padding: 0;
  list-style: none;
  color: var(--text-faint);
  font-size: var(--fs-xs);
}

.blog-single__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.blog-single__meta-item svg {
  flex: none;
  color: var(--slate-400);
}

.blog-single__content {
  padding: clamp(2.5rem, 2rem + 2vw, 4rem) 0 var(--section-y);
  background: #fff;
}

.blog-single__cover {
  max-width: var(--container-narrow);
  margin: 0 auto clamp(2rem, 1.5rem + 1.5vw, 3rem);
}

.blog-single__cover-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.blog-single__cover figcaption {
  margin-top: var(--space-2);
  color: var(--text-faint);
  font-size: var(--fs-xs);
  text-align: center;
}

.blog-single__body {
  max-width: var(--container-narrow);
  margin-inline: auto;
}

.blog-single__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  max-width: var(--container-narrow);
  margin: clamp(2rem, 1.5rem + 1.5vw, 3rem) auto 0;
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
}

.blog-single__tag {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--slate-50);
  color: var(--text-soft);
  font-size: var(--fs-xs);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.blog-single__tag:hover {
  border-color: var(--blue-400);
  color: var(--blue-600);
}

/* ==========================================================================
   5. PREV / NEXT
   ========================================================================== */

.blog-adjacent {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.75rem, 0.5rem + 1vw, 1.25rem);
  max-width: var(--container-narrow);
  margin: clamp(2rem, 1.5rem + 1.5vw, 3rem) auto 0;
}

.blog-adjacent__link {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.blog-adjacent__link:hover {
  border-color: var(--blue-400);
  box-shadow: var(--shadow-sm);
}

.blog-adjacent__link--next {
  text-align: right;
  grid-column: 2;
}

.blog-adjacent__label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-faint);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.blog-adjacent__link--next .blog-adjacent__label { justify-content: flex-end; }

.blog-adjacent__label svg { flex: none; }

.blog-adjacent__title {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: var(--ink-800);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1.5;
}

/* ==========================================================================
   6. RELATED
   ========================================================================== */

.blog-related {
  padding: clamp(2.5rem, 2rem + 2vw, 4rem) 0 var(--section-y);
  border-top: 1px solid var(--border);
  background: var(--slate-50);
}

/* ==========================================================================
   7. RESPONSIVE
   ========================================================================== */

@media (max-width: 1024px) {
  .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .blog-grid { grid-template-columns: 1fr; }

  .blog-adjacent { grid-template-columns: 1fr; }

  .blog-adjacent__link--next {
    grid-column: 1;
    text-align: left;
  }

  .blog-adjacent__link--next .blog-adjacent__label { justify-content: flex-start; }

  .blog-crumb__current { max-width: 24ch; }
}

@media (prefers-reduced-motion: reduce) {
  .blog-card,
  .blog-filters__chip,
  .blog-adjacent__link,
  .blog-single__tag { transition: none; }

  .blog-card:hover { transform: none; }
}