/* ============================================================
   insights.css — Anté Insights (blog)
   Layered on top of shared.css. Adds only what the index and the
   article pages need. All colour, spacing and type comes from the
   tokens in shared.css: nothing is redefined here.
   ============================================================ */

/* ── Local tokens ────────────────────────────────────────── */
:root {
  --article-measure: 68ch;   /* reading width, body copy */
  --cover-ratio: 1200 / 630; /* every Insights cover is drawn at this ratio */
}

/* ============================================================
   1. COVER ART
   Every post has one cover, drawn to the template in
   assets/images/insights/. The cover carries no text of its own:
   the label sits on top of it in HTML so brand fonts apply.
   ============================================================ */
.cover {
  position: relative;
  display: block;
  aspect-ratio: var(--cover-ratio);
  border-radius: var(--radius-img);
  overflow: hidden;
  background: var(--charcoal);
}

.cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 500ms ease;
}

.cover-label {
  position: absolute;
  top: clamp(14px, 2.2vw, 26px);
  left: clamp(16px, 2.6vw, 30px);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: clamp(9px, 1.1vw, 11px);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--frosted);
  background: rgba(40, 41, 43, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(156, 227, 248, 0.28);
  padding: 5px 11px;
  border-radius: 999px;
}

/* ============================================================
   2. POST LIST (insights/index.html)
   ============================================================ */

/* Featured post — cover left, text right */
.post-featured {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--rule);
  border-radius: var(--radius-card);
  background: var(--white);
  transition: box-shadow 300ms ease, border-color 300ms ease;
}

.post-featured:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.07);
  border-color: rgba(32, 106, 91, 0.18);
}

.post-featured:hover .cover img { transform: scale(1.03); }

.post-featured h2 {
  font-size: clamp(26px, 3.4vw, 42px);
  margin-bottom: 18px;
}

.post-featured .post-excerpt { margin-bottom: 24px; }

/* Grid of remaining posts */
.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.post-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--rule);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--white);
  transition: box-shadow 300ms ease, transform 300ms ease, border-color 300ms ease;
}

.post-card:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.07);
  transform: translateY(-3px);
  border-color: rgba(32, 106, 91, 0.18);
}

.post-card:hover .cover img { transform: scale(1.04); }

.post-card .cover { border-radius: 0; }

.post-card-body {
  padding: clamp(20px, 2.4vw, 28px);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-card h3 {
  font-size: clamp(19px, 2vw, 24px);
  margin-bottom: 12px;
}

.post-card .post-excerpt { flex: 1; }

/* Meta line: date · reading time */
.post-meta {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.post-meta .sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--ink-muted);
  flex-shrink: 0;
}

.post-meta .topic { color: var(--spruce); }

.post-excerpt {
  font-size: clamp(14px, 1.4vw, 16px);
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 20px;
}

.post-more {
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: var(--spruce);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: auto;
}

.post-card:hover .post-more .arrow,
.post-featured:hover .post-more .arrow { transform: translateX(4px); }

.post-more .arrow { transition: transform 200ms ease; }

/* Placeholder card for the posts that are coming */
.post-card--upcoming {
  border-style: dashed;
  border-color: rgba(40, 41, 43, 0.14);
  background: rgba(32, 106, 91, 0.02);
  box-shadow: none;
}

.post-card--upcoming:hover {
  transform: none;
  box-shadow: none;
  border-color: rgba(32, 106, 91, 0.2);
}

.post-card--upcoming h3 { color: var(--ink-soft); }

.upcoming-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 4px;
}

.upcoming-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.55;
}

.upcoming-list li::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--frosted);
  flex-shrink: 0;
  margin-top: 8px;
}

/* ============================================================
   3. ARTICLE PAGE
   ============================================================ */

/* Reading progress bar, pinned under the floating nav */
.progress-rail {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 99;
  background: transparent;
  pointer-events: none;
}

.progress-bar {
  height: 100%;
  width: 0;
  background: var(--spruce);
  transition: width 90ms linear;
}

/* Breadcrumb */
.crumb {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.crumb a { color: var(--spruce); }
.crumb a:hover { color: var(--charcoal); }

/* Article header */
.article-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-style: italic;
  font-size: clamp(34px, 5.2vw, 68px);
  letter-spacing: -0.02em;
  line-height: 1.03;
  color: var(--charcoal);
  max-width: 17ch;
  margin-bottom: 26px;
}

.article-lede {
  font-size: clamp(17px, 2vw, 21px);
  color: var(--ink-soft);
  line-height: 1.65;
  max-width: 58ch;
  margin-bottom: 28px;
}

.article-byline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.article-byline strong {
  color: var(--charcoal);
  font-weight: 500;
}

/* Article body: the reading column */
.article-body {
  max-width: var(--article-measure);
}

.article-body > p {
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 26px;
}

.article-body > p:first-of-type { margin-top: 0; }

/* shared.css sets `p + p { margin-top: var(--space-stack) }`;
   inside the article the bottom margin above already spaces them. */
.article-body p + p { margin-top: 0; }

.article-body h2 {
  font-size: clamp(26px, 3.2vw, 40px);
  margin-top: clamp(48px, 6vw, 76px);
  margin-bottom: 22px;
  scroll-margin-top: 110px;
}

.article-body h3 {
  font-size: clamp(19px, 2.2vw, 26px);
  margin-top: clamp(32px, 4vw, 44px);
  margin-bottom: 14px;
  scroll-margin-top: 110px;
}

.article-body h2 + p,
.article-body h3 + p { margin-top: 0; }

.article-body strong {
  color: var(--charcoal);
  font-weight: 600;
}

.article-body em { font-style: italic; }

.article-body a:not(.btn-primary):not(.btn-secondary):not(.cta-link) {
  color: var(--spruce);
  border-bottom: 1px solid rgba(32, 106, 91, 0.3);
  transition: border-color 200ms ease, background-color 200ms ease;
}

.article-body a:not(.btn-primary):not(.btn-secondary):not(.cta-link):hover {
  border-color: var(--spruce);
  background: rgba(32, 106, 91, 0.06);
}

/* Lists inside the article */
.article-body ul,
.article-body ol {
  margin: 0 0 26px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 13px;
}

/* The marker is positioned, not a flex sibling: a list item mixing <strong>
   or <a> with plain text has to stay one flowing line of text. */
.article-body li {
  font-size: clamp(15px, 1.55vw, 17px);
  line-height: 1.7;
  color: var(--ink-soft);
  position: relative;
  padding-left: 22px;
}

.article-body ul > li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--frosted);
}

.article-body ol {
  counter-reset: ol-counter;
}

.article-body ol > li {
  counter-increment: ol-counter;
  padding-left: 30px;
}

.article-body ol > li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0;
  top: 0.18em;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--spruce);
}

.article-body li strong { color: var(--charcoal); }

/* Pull quote */
.pullquote {
  margin: clamp(36px, 5vw, 56px) 0;
  padding-left: clamp(22px, 3vw, 34px);
  border-left: 3px solid var(--frosted);
}

.pullquote p {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-style: italic;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--charcoal);
  margin: 0;
}

/* Callout: the practical instruction inside a section */
.callout {
  background: rgba(32, 106, 91, 0.04);
  border: 1px solid rgba(32, 106, 91, 0.12);
  border-radius: var(--radius-card);
  padding: clamp(24px, 3vw, 34px);
  margin: clamp(32px, 4vw, 44px) 0;
}

.callout .eyebrow { margin-bottom: 12px; }

.callout p:last-child,
.callout ul:last-child,
.callout ol:last-child { margin-bottom: 0; }

/* Figure: diagrams sit full reading width */
.article-figure {
  margin: clamp(36px, 5vw, 56px) 0;
}

.article-figure .figure-frame {
  border: 1px solid var(--rule);
  border-radius: var(--radius-card);
  padding: clamp(20px, 3vw, 34px);
  background: var(--white);
  overflow-x: auto;
}

.article-figure svg {
  width: 100%;
  height: auto;
  display: block;
  min-width: 460px;
}

.article-figure figcaption {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  line-height: 1.6;
  margin-top: 14px;
  text-transform: none;
}

/* Comparison table */
.article-table-wrap {
  overflow-x: auto;
  margin: clamp(32px, 4vw, 44px) 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-card);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

.article-table th,
.article-table td {
  text-align: left;
  padding: 16px clamp(16px, 2vw, 22px);
  font-size: 15px;
  line-height: 1.6;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.article-table th {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--spruce);
  background: rgba(32, 106, 91, 0.03);
}

.article-table td { color: var(--ink-soft); }
.article-table td:first-child { color: var(--charcoal); font-weight: 500; }
.article-table tr:last-child td { border-bottom: none; }

/* ============================================================
   4. TABLE OF CONTENTS (sticky, desktop only)
   ============================================================ */
/* The reading column keeps the hero's left edge, the contents list sits
   flush right against the cover's right edge. The slack falls between
   them instead of after them. */
.article-layout {
  display: grid;
  grid-template-columns: min(100%, var(--article-measure)) 232px;
  justify-content: space-between;
  gap: clamp(32px, 4vw, 56px);
  align-items: start;
}

.toc {
  position: sticky;
  top: 110px;
  border-left: 1px solid var(--rule);
  padding-left: 22px;
}

.toc-title {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  display: block;
  margin-bottom: 16px;
}

.toc ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toc a {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
  transition: color 200ms ease;
  display: block;
}

.toc a:hover { color: var(--charcoal); }

.toc a.is-current {
  color: var(--spruce);
  font-weight: 500;
}

/* ============================================================
   5. PROMPT BLOCK
   Closes every Insights post. Kept as one self-contained block
   so it can later be wrapped in an email gate without touching
   the article: gate the .prompt-body, leave the header visible.
   ============================================================ */
.prompt-block {
  background: var(--charcoal);
  border-radius: var(--radius-card);
  padding: clamp(30px, 4vw, 52px);
  margin: clamp(48px, 6vw, 72px) 0 0;
  color: var(--white);
  scroll-margin-top: 110px;
}

.prompt-block .eyebrow { color: var(--frosted); }

.prompt-block h2 {
  color: var(--white);
  font-size: clamp(24px, 3vw, 36px);
  margin-top: 0;
  margin-bottom: 18px;
}

.prompt-block > p {
  color: rgba(255, 255, 255, 0.72);
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
}

.prompt-pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: clamp(18px, 2.4vw, 24px);
  margin: 24px 0 20px;
  max-height: 340px;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  tab-size: 2;
}

.prompt-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.prompt-block .btn-primary {
  background: var(--frosted);
  border-color: var(--frosted);
  color: var(--charcoal);
}

.prompt-block .btn-primary:hover {
  background: var(--white);
  border-color: var(--white);
  color: var(--charcoal);
}

.prompt-block .btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.42);
}

.prompt-block .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.prompt-note {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--frosted);
  min-height: 1em;
}

.prompt-howto {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  max-width: 62ch;
}

/* ============================================================
   6. FAQ (renders as real content, and as FAQPage schema)
   ============================================================ */
.faq-list {
  border-top: 1px solid var(--rule);
  margin-top: var(--space-stack);
}

.faq-item {
  border-bottom: 1px solid var(--rule);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 22px 40px 22px 0;
  position: relative;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--charcoal);
  line-height: 1.5;
  transition: color 200ms ease;
}

.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--spruce); }

.faq-item summary::after {
  content: '';
  position: absolute;
  right: 6px;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -7px;
  border-right: 2px solid var(--spruce);
  border-bottom: 2px solid var(--spruce);
  transform: rotate(45deg);
  transition: transform 250ms ease;
}

.faq-item[open] summary::after {
  transform: rotate(-135deg);
  margin-top: -3px;
}

.faq-answer {
  padding: 0 0 24px;
  max-width: 68ch;
}

.faq-answer p {
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
}

.faq-answer p + p { margin-top: 18px; }

/* ============================================================
   7. SOURCES, AUTHOR, NEXT
   ============================================================ */
.sources {
  margin-top: clamp(40px, 5vw, 56px);
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}

.sources ol {
  display: flex;
  flex-direction: column;
  gap: 10px;
  counter-reset: src;
}

.sources li {
  counter-increment: src;
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.sources li::before {
  content: counter(src);
  position: absolute;
  left: 0;
  top: 0.22em;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-muted);
}

.sources a {
  color: var(--spruce);
  border-bottom: 1px solid rgba(32, 106, 91, 0.3);
}

.sources a:hover { border-color: var(--spruce); }

.author-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid var(--rule);
  border-radius: var(--radius-card);
  margin-top: clamp(40px, 5vw, 56px);
}

.author-mark {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(32, 106, 91, 0.08);
  border: 1px solid rgba(32, 106, 91, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.author-mark span {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-style: italic;
  font-size: 17px;
  color: var(--spruce);
  line-height: 1;
}

.author-card h4 { margin-bottom: 6px; }
.author-card p { font-size: 14px; margin: 0; }

/* ============================================================
   8. RESPONSIVE
   ============================================================ */
@media (max-width: 1040px) {
  .article-layout { grid-template-columns: minmax(0, 1fr); justify-content: start; }
  .toc { display: none; }
  .post-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .post-featured {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 680px) {
  .post-grid { grid-template-columns: 1fr; }
  .article-title { max-width: none; }
  .article-figure svg { min-width: 380px; }
  .prompt-pre { font-size: 11.5px; max-height: 300px; }
  .prompt-actions > .btn-primary,
  .prompt-actions > .btn-secondary { flex: 1 1 100%; justify-content: center; }
}

/* ── Print: the article, nothing else ───────────────────── */
@media print {
  .nav, .mobile-menu, .footer, .toc, .progress-rail,
  .prompt-actions, .article-nav, .green-cta-block { display: none !important; }
  .article-layout { display: block; }
  .prompt-block { background: none; color: var(--charcoal); border: 1px solid #ccc; }
  .prompt-block h2, .prompt-block > p, .prompt-pre { color: var(--charcoal); }
  .prompt-pre { background: #f6f6f6; border-color: #ddd; }
  .faq-item[open] .faq-answer, .faq-answer { display: block !important; }
}