/* Insights (blog) pages, laid out like Edition's insights (10 Nov 2026).
   Reads every colour, size and font from tokens.css; the nav, footer,
   pill and the post cards (.insight-*) come from styles.css. */

.side-label {
  font: 400 var(--text-micro)/1.3 var(--font-mono);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--fg-muted);
}

/* Index ---------------------------------------------------------------- */

.blog-header {
  padding-top: clamp(150px, 11.7vw, 240px);
  padding-bottom: clamp(64px, 7.3vw, 150px);
  text-align: center;
}
.blog-title {
  font-family: var(--font-display);
  font-size: clamp(3.75rem, 7.8vw, 10rem);   /* Edition: 160px at 2056 wide */
  line-height: 1;
  letter-spacing: -0.03em;
}
.blog-sub { max-width: 60ch; margin: 24px auto 0; }

/* Featured: photo on the left half, chip and title centred on the right */
.feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 100px);
  align-items: center;
  text-decoration: none;
}
.feature-text { display: grid; gap: clamp(16px, 1.6vw, 28px); align-content: center; }
.feature-title {
  font-size: clamp(2rem, 2.5vw, 3.25rem);    /* Edition: 52px at 2056 wide */
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.feature:hover .feature-title { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 6px; }
.feature:hover .insight-img img { transform: scale(1.03); }
@media (max-width: 760px) { .feature { grid-template-columns: 1fr; } }

/* Topic filters: a row of words over a hairline */
.insight-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px clamp(20px, 1.6vw, 32px);
  margin: clamp(48px, 4vw, 80px) 0 clamp(40px, 4vw, 80px);
  padding-bottom: 16px;
  border-bottom: var(--hairline) solid color-mix(in srgb, var(--fg) 20%, transparent);
}
.insight-filters button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--fg-faint);
  font: 400 clamp(1rem, 1vw, 1.25rem)/1.45 var(--font-body);
  cursor: pointer;
  transition: color var(--dur-ui);
}
.insight-filters button:hover,
.insight-filters button.is-active { color: var(--fg); }
.insight[hidden] { display: none; }

/* Article -------------------------------------------------------------- */

.post-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2.4fr);
  gap: clamp(32px, 5vw, 96px);
  padding-top: clamp(120px, 10vw, 150px);
}

.post-side { display: flex; flex-direction: column; gap: 24px; }
.post-author { display: flex; align-items: center; gap: 12px; }
.post-author img { width: 44px; height: 44px; border-radius: 50%; }
.post-author p { display: grid; font-size: var(--text-small); line-height: 1.35; }
.post-author b { font-weight: 400; }
.post-author span { color: var(--fg-muted); font-size: 0.875rem; }

.post-side-sticky {
  position: sticky;
  top: 110px;
  display: grid;
  gap: 40px;
  margin-top: clamp(40px, 6vw, 96px);
}
.post-toc-links { display: grid; gap: 2px; margin-top: 14px; }
.post-toc-links a {
  padding: 5px 0 5px 12px;
  border-left: var(--hairline) solid transparent;
  font-size: 0.875rem;
  line-height: 1.35;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color var(--dur-ui), border-color var(--dur-ui);
}
.post-toc-links a:hover,
.post-toc-links a.is-current { color: var(--fg); border-color: var(--fg); }

.post-share-links { display: flex; gap: 14px; margin-top: 12px; }
.post-share-links a,
.post-share-links button {
  position: relative;
  display: grid;
  place-items: center;
  width: 28px; height: 28px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--fg);
  cursor: pointer;
}
.post-share-links svg { width: 18px; height: 18px; fill: currentColor; }
.post-share-links button svg { fill: none; }
.post-share-links a:hover,
.post-share-links button:hover { color: var(--accent); }
.copied {
  position: absolute;
  left: 34px;
  white-space: nowrap;
  font: 400 var(--text-micro)/1 var(--font-mono);
  text-transform: uppercase;
  color: var(--fg-muted);
}

.post-main .insight-meta { margin-bottom: 20px; }
.post-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 1.6rem + 3.2vw, 4.5rem);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  text-wrap: balance;
}
.post-hero {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  margin: clamp(28px, 3vw, 44px) 0 clamp(48px, 6vw, 88px);
  border-radius: var(--radius-image);
  background: var(--surface);
}

.post-body { max-width: 38rem; }
.post-body > * + * { margin-top: 1.1em; }
.post-body p, .post-body li { color: color-mix(in srgb, var(--fg) 82%, var(--bg)); }
.post-body h2 {
  margin-top: 2.4em;
  font-size: clamp(1.5rem, 1.25rem + 0.7vw, 1.875rem);
  line-height: 1.2;
  letter-spacing: var(--tracking-tight);
  scroll-margin-top: 110px;
}
.post-body h3 {
  margin-top: 1.8em;
  font-size: clamp(1.1875rem, 1.1rem + 0.3vw, 1.3125rem);
  font-weight: 400;
  line-height: 1.3;
}
.post-body h2 + *, .post-body h3 + * { margin-top: 0.6em; }

.post-body ul { display: grid; gap: 0.55em; }
.post-body ul:not(.post-tiers) li { position: relative; padding-left: 1.4em; }
.post-body ul:not(.post-tiers) li::before {
  content: "";
  position: absolute;
  left: 0.2em; top: 0.62em;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--rosewood);
}
.post-body b { font-weight: 500; color: var(--fg); }

/* Price ladder: label on the left, price on the right, hairlines between */
.post-tiers { gap: 0 !important; border-top: var(--hairline) solid var(--line-strong); }
.post-tiers li { display: flow-root; padding: 14px 0; border-bottom: var(--hairline) solid var(--line); }
.post-tiers span {
  float: right;
  margin-left: 24px;
  font: 400 var(--text-label)/1.6 var(--font-mono);
  letter-spacing: var(--tracking-mono);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .post-grid { grid-template-columns: 1fr; }
  .post-side { order: 2; }
  .post-side-sticky { position: static; margin-top: 8px; }
  .post-toc { display: none; }
}

/* FAQs: title on the left, questions lined up with the article --------- */

.post-faq {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2.4fr);
  gap: clamp(32px, 5vw, 96px);
  padding-top: clamp(88px, 9vw, 140px);
}
.post-faq-title {
  font-size: clamp(1.5rem, 1.25rem + 0.7vw, 1.875rem);
  line-height: 1.2;
}
.faq-list { max-width: 40rem; border-top: var(--hairline) solid var(--line); }
.faq-item { border-bottom: var(--hairline) solid var(--line); }
.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-chevron {
  flex: none;
  width: 9px; height: 9px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-3px) rotate(45deg);
  transition: transform var(--dur-ui) var(--ease-ui);
}
.faq-item[open] .faq-chevron { transform: translateY(2px) rotate(-135deg); }
.faq-item p { padding: 0 40px 22px 0; color: var(--fg-muted); }
@media (max-width: 900px) { .post-faq { grid-template-columns: 1fr; gap: 20px; } }

/* Related: one large card, then two smaller ---------------------------- */

.related { padding-top: clamp(96px, 10vw, 160px); }
.related-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--grid-gap);
  align-items: start;
}
.related-grid .is-big .insight-title { font-size: clamp(1.25rem, 1.05rem + 0.6vw, 1.625rem); }
@media (max-width: 900px) { .related-grid { grid-template-columns: 1fr 1fr; } .related-grid .is-big { grid-column: 1 / -1; } }
@media (max-width: 560px) { .related-grid { grid-template-columns: 1fr; } }

/* Closing call to action ----------------------------------------------- */

.post-cta {
  display: grid;
  justify-items: center;
  gap: 36px;
  padding: var(--section-lg) var(--gutter);
  text-align: center;
}
.post-cta-title {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
}

/* The nav's Insights link reads as the current page */
.is-blog .nav-links a[href$="blog/"] { color: var(--fg); }