/* ============================================================
   BLOG (/blog/) — .bl-* namespace
   Shares the site header, footer, and design tokens, but keeps its
   own chrome so the blog reads as a publication rather than another
   marketing page. Nothing here leaks into the marketing CSS.
   ============================================================ */

.bl-shell {
  max-width: 1104px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}
.bl-shell--narrow { max-width: 748px; }

/* ---- Masthead ----------------------------------------------------------- */

.bl-masthead {
  padding: 56px 0 28px;
  background: var(--color-bg-soft);
  border-bottom: var(--border-thin);
}
.bl-masthead__row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-6);
}
.bl-masthead__eyebrow {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-teal-900);
}
.bl-masthead__h1 {
  margin: 0 0 12px;
  font-size: 34px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-navy-800);
  max-width: 20ch;
}
.bl-masthead__lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-secondary);
  max-width: 62ch;
}
.bl-masthead__rss {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 13px;
  border: var(--border-thin);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  font-size: 12.5px;
  text-decoration: none;
  transition: color 150ms ease, border-color 150ms ease;
}
.bl-masthead__rss:hover {
  color: var(--color-teal-900);
  border-color: var(--color-teal-500);
  text-decoration: none;
}

/* ---- Tag filters -------------------------------------------------------- */

.bl-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}
.bl-filter {
  padding: 6px 14px;
  border: var(--border-thin);
  border-radius: 999px;
  background: var(--color-bg);
  color: var(--color-text-secondary);
  font-family: inherit;
  font-size: 12.5px;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}
.bl-filter:hover { border-color: var(--color-teal-500); color: var(--color-teal-900); }
.bl-filter.is-active {
  background: var(--color-navy-800);
  border-color: var(--color-navy-800);
  color: #FFFFFF;
}

/* ---- Post list ---------------------------------------------------------- */

.bl-list { padding: 40px 0 80px; }
.bl-list__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.bl-list__empty {
  margin: 32px 0 0;
  font-size: 14px;
  color: var(--color-text-tertiary);
}

.bl-card {
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  transition: border-color 150ms ease, transform 150ms ease;
}
.bl-card:hover { border-color: var(--color-teal-500); transform: translateY(-1px); }
.bl-card[hidden] { display: none; }
.bl-card--featured { grid-column: 1 / -1; }
.bl-card--featured .bl-card__h { font-size: 24px; }
.bl-card--featured .bl-card__excerpt { font-size: 15px; max-width: 70ch; }

.bl-card__link {
  display: block;
  padding: 24px 26px;
  text-decoration: none;
  color: inherit;
  height: 100%;
}
.bl-card__link:hover { text-decoration: none; }
.bl-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-tertiary);
}
.bl-card__h {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--color-navy-800);
}
.bl-card:hover .bl-card__h { color: var(--color-teal-900); }
.bl-card__excerpt {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}
.bl-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-tertiary);
}
.bl-card__tags { display: inline-flex; gap: 6px; flex-wrap: wrap; }

.bl-tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--color-teal-50);
  color: var(--color-teal-1000);
  font-size: 11px;
  letter-spacing: 0.01em;
}

/* ---- Post page ---------------------------------------------------------- */

.bl-post__head {
  padding: 44px 0 28px;
  border-bottom: var(--border-thin);
  background: var(--color-bg-soft);
}
.bl-post__back {
  display: inline-block;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--color-text-secondary);
  text-decoration: none;
}
.bl-post__back:hover { color: var(--color-teal-900); }
.bl-post__tags { margin: 0 0 12px; display: flex; gap: 6px; flex-wrap: wrap; }
.bl-post__h1 {
  margin: 0 0 14px;
  font-size: 36px;
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.022em;
  color: var(--color-navy-800);
}
.bl-post__lede {
  margin: 0 0 26px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.bl-byline { display: flex; align-items: center; gap: 12px; }
.bl-byline__avatar {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}
.bl-byline__role {
  margin-left: 8px;
  padding-left: 8px;
  border-left: var(--border-thin);
  font-weight: 400;
  color: var(--color-text-tertiary);
}
.bl-card__avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 7px;
  vertical-align: middle;
}
.bl-card__author { display: inline-flex; align-items: center; }
.bl-byline__author {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--color-navy-800);
}
.bl-byline__meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--color-text-tertiary);
}

/* ---- Post body (prose) -------------------------------------------------- */

.bl-post__body {
  padding: 40px 0 56px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--color-text-primary);
}
.bl-post__body > *:first-child { margin-top: 0; }
.bl-post__body h2 {
  margin: 44px 0 14px;
  font-size: 23px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--color-navy-800);
  scroll-margin-top: 90px;
}
.bl-post__body h3 {
  margin: 32px 0 10px;
  font-size: 18px;
  font-weight: 500;
  color: var(--color-navy-800);
  scroll-margin-top: 90px;
}
.bl-post__body p { margin: 0 0 var(--space-5); }
.bl-post__body ul,
.bl-post__body ol { margin: 0 0 var(--space-5); padding-left: 24px; }
.bl-post__body li { margin-bottom: var(--space-2); }
.bl-post__body a {
  color: var(--color-teal-900);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.bl-post__body a:hover { color: var(--color-teal-1000); }
.bl-post__body strong { font-weight: 500; color: var(--color-navy-800); }
.bl-post__body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: var(--border-thin);
  margin: var(--space-3) 0 var(--space-5);
}
.bl-post__body hr {
  border: none;
  border-top: var(--border-thin);
  margin: 40px 0;
}
.bl-post__body blockquote {
  margin: 0 0 var(--space-5);
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--color-teal-500);
  color: var(--color-text-secondary);
}
.bl-post__body blockquote p:last-child { margin-bottom: 0; }
.bl-post__body code {
  font-family: var(--font-mono);
  font-size: 0.87em;
  background: var(--color-bg-soft);
  border: var(--border-thin);
  border-radius: var(--radius-sm);
  padding: 1px 5px;
}
.bl-post__body pre {
  margin: 0 0 var(--space-5);
  padding: 18px 20px;
  background: var(--color-navy-900);
  border-radius: var(--radius-md);
  overflow-x: auto;
}
.bl-post__body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
  line-height: 1.65;
  color: #D6E0F0;
}
.bl-table { overflow-x: auto; margin: 0 0 var(--space-5); }
.bl-post__body table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.bl-post__body th,
.bl-post__body td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: var(--border-thin);
  vertical-align: top;
}
.bl-post__body th {
  font-weight: 500;
  color: var(--color-navy-800);
  white-space: nowrap;
}

/* ---- Adjacent posts ----------------------------------------------------- */

.bl-adjacent { padding: 0 0 8px; }
.bl-adjacent__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding-top: 32px;
  border-top: var(--border-thin);
}
.bl-adjacent__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: border-color 150ms ease;
}
.bl-adjacent__item:hover { border-color: var(--color-teal-500); text-decoration: none; }
.bl-adjacent__item--next { text-align: right; }
.bl-adjacent__item--next:only-child { grid-column: 2; }
.bl-adjacent__dir { font-size: 12px; color: var(--color-text-tertiary); }
.bl-adjacent__title {
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-navy-800);
}

/* ---- End CTA ------------------------------------------------------------ */

.bl-endcta { padding: 40px 0 80px; }
.bl-endcta__card {
  padding: 32px 34px;
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  background: var(--color-bg-soft);
  text-align: center;
}
.bl-endcta__h {
  margin: 0 0 8px;
  font-size: 21px;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--color-navy-800);
}
.bl-endcta__lede {
  margin: 0 0 20px;
  font-size: 14.5px;
  color: var(--color-text-secondary);
}
.bl-endcta__btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---- Responsive --------------------------------------------------------- */

@media (max-width: 900px) {
  .bl-masthead__row { flex-direction: column; gap: var(--space-4); }
  .bl-masthead__h1 { font-size: 28px; }
  .bl-list__grid { grid-template-columns: 1fr; }
  .bl-post__h1 { font-size: 29px; }
  .bl-post__lede { font-size: 16.5px; }
  .bl-post__body { font-size: 16px; }
  .bl-adjacent__grid { grid-template-columns: 1fr; }
  .bl-adjacent__item--next { text-align: left; }
  .bl-adjacent__item--next:only-child { grid-column: 1; }
}