/* =========================================================================
   BLOG — listing + article pages
   Inherits design tokens + primitives from ../styles.css
   ========================================================================= */

/* Top-frame over solid bg (no hero video) needs readable text */
.top-frame-static {
  background: linear-gradient(180deg, var(--emerald) 0%, rgba(31,58,47,0.96) 100%);
  border-bottom: 1px solid rgba(155, 122, 63, 0.25);
}

body { background: var(--ivory); }

.blog-main {
  padding-top: clamp(120px, 12vw, 180px);
  padding-bottom: 40px;
}

/* =========================================================================
   BLOG INDEX — head
   ========================================================================= */
.blog-head { padding: 0 var(--edge) clamp(60px, 7vw, 96px); }
.blog-head-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.blog-head .eyebrow {
  border-bottom: none;
  padding-bottom: 0;
}
.blog-display {
  font-size: clamp(44px, 6.4vw, 84px);
  margin: 18px 0 28px;
  line-height: 1.02;
}
.blog-lede {
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.55;
  color: var(--charcoal-70);
  margin: 0 auto;
  max-width: 60ch;
}

/* =========================================================================
   BLOG INDEX — filter chips
   ========================================================================= */
.blog-grid-section { padding: 0 var(--edge) 120px; }
.blog-grid-inner { max-width: 1280px; margin: 0 auto; }
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: clamp(40px, 5vw, 64px);
  padding-bottom: 32px;
  border-bottom: 1px solid var(--bronze-30);
}
.chip {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--charcoal-70);
  background: transparent;
  border: 1px solid var(--bronze-30);
  padding: 10px 16px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.chip:hover { color: var(--emerald); border-color: var(--bronze-60); }
.chip-active {
  color: var(--ivory);
  background: var(--emerald);
  border-color: var(--emerald);
}

/* =========================================================================
   BLOG INDEX — grid + cards
   ========================================================================= */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 40px);
}
.blog-grid[data-empty="true"] { display: none; }

.post-card {
  background: var(--ivory);
  border: 1px solid var(--bronze-30);
  transition: transform 0.4s cubic-bezier(0.22,0.61,0.36,1), box-shadow 0.4s ease, border-color 0.3s ease;
  overflow: hidden;
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 32px 64px -30px rgba(31,58,47,0.25);
  border-color: var(--bronze-60);
}
.post-card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}
.post-card-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--ivory-deep);
}
.post-card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1s ease;
}
.post-card:hover .post-card-media img { transform: scale(1.05); }
.post-card-body {
  padding: 26px 26px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.post-card-category {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bronze);
}
.post-card-title {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: 22px;
  line-height: 1.2;
  color: var(--charcoal);
  margin: 4px 0 6px;
  letter-spacing: -0.01em;
}
.post-card-excerpt {
  font-size: 14px;
  line-height: 1.55;
  color: var(--charcoal-70);
  margin: 0;
}
.post-card-meta {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bronze);
  margin-top: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--bronze-30);
}

/* Search input (injected above filter chips) */
.blog-search-wrap {
  max-width: 520px;
  margin: 0 auto clamp(20px, 2.5vw, 28px);
}
.blog-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--bronze-30);
  background: var(--ivory);
  color: var(--bronze);
  transition: border-color 0.2s ease;
}
.blog-search:focus-within { border-color: var(--emerald); }
.blog-search input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--f-body);
  font-size: 14px;
  color: var(--charcoal);
  padding: 0;
  min-width: 0;
}
.blog-search input::placeholder { color: var(--charcoal-70); }

/* Empty state */
.blog-empty {
  text-align: center;
  padding: 60px 20px 40px;
  max-width: 640px;
  margin: 0 auto;
}
.blog-empty .eyebrow {
  border-bottom: none;
  padding-bottom: 0;
}
.blog-empty .headline {
  font-size: clamp(28px, 4vw, 44px);
  margin: 18px 0 20px;
}
.blog-empty .body { margin: 0 auto; }
.blog-grid[data-empty="false"] + .blog-empty { display: none; }

/* =========================================================================
   ARTICLE PAGE
   ========================================================================= */
.article-main { padding-top: clamp(110px, 12vw, 160px); padding-bottom: 0; }
.article-breadcrumb {
  max-width: 820px;
  margin: 0 auto 28px;
  padding: 0 var(--edge);
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bronze);
}
.article-breadcrumb a {
  color: var(--bronze);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.article-breadcrumb a:hover { border-bottom-color: var(--bronze); }
.article-breadcrumb .sep { margin: 0 10px; opacity: 0.55; }
.article-breadcrumb .current { color: var(--charcoal-70); }

.article-head {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 var(--edge) 44px;
  text-align: center;
}
.article-head .eyebrow {
  border-bottom: none;
  padding-bottom: 0;
}
.article-title {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--charcoal);
  margin: 18px 0 22px;
}
.article-title em { font-weight: 400; color: var(--emerald); }
.article-meta {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bronze);
  display: inline-flex;
  gap: 14px;
  align-items: center;
}
.article-meta .sep { opacity: 0.5; }

.article-hero {
  max-width: 1080px;
  margin: 0 auto 48px;
  padding: 0 var(--edge);
}
.article-hero img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--bronze-30);
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--edge) 80px;
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--charcoal);
}
.article-body p { margin: 0 0 1.4em; }
.article-body h2 {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--charcoal);
  margin: 2em 0 0.6em;
}
.article-body h2 em { font-weight: 400; color: var(--emerald); }
.article-body h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: clamp(20px, 2vw, 24px);
  line-height: 1.25;
  color: var(--charcoal);
  margin: 1.8em 0 0.4em;
}
.article-body ul, .article-body ol {
  padding-left: 1.2em;
  margin: 0 0 1.4em;
}
.article-body li { margin-bottom: 0.5em; }
.article-body blockquote {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.15em;
  line-height: 1.5;
  color: var(--emerald);
  border-left: 3px solid var(--bronze);
  padding: 0.2em 0 0.2em 1.2em;
  margin: 1.6em 0;
}
.article-body a {
  color: var(--emerald);
  text-decoration: underline;
  text-decoration-color: var(--bronze-30);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s ease;
}
.article-body a:hover { text-decoration-color: var(--bronze); }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 0.94em;
}
.article-body th, .article-body td {
  padding: 12px 14px;
  border: 1px solid var(--bronze-30);
  text-align: left;
  vertical-align: top;
}
.article-body th {
  background: var(--ivory-deep);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bronze);
  font-weight: 500;
}
.article-body img {
  width: 100%;
  margin: 1.6em 0;
  border: 1px solid var(--bronze-30);
}
.article-body figcaption {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--bronze);
  text-align: center;
  margin: -0.8em 0 1.6em;
}

/* Article TOC — inserted before .article-body on desktop sidebar, collapsible on mobile */
.article-toc {
  position: fixed;
  top: clamp(120px, 14vw, 170px);
  right: clamp(20px, 3vw, 48px);
  width: 260px;
  max-height: 60vh;
  overflow-y: auto;
  background: var(--ivory);
  border: 1px solid var(--bronze-30);
  padding: 20px 22px;
  z-index: 8;
  display: none;
}
@media (min-width: 1280px) { .article-toc { display: block; } }
.article-toc .toc-label {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bronze);
  margin-bottom: 14px;
}
.article-toc ol.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: toc;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.article-toc ol.toc-list li {
  counter-increment: toc;
  padding: 5px 0;
  border-bottom: 1px dashed var(--bronze-30);
  font-size: 13px;
  line-height: 1.35;
}
.article-toc ol.toc-list li:last-child { border-bottom: none; }
.article-toc ol.toc-list li::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--bronze);
  margin-right: 8px;
}
.article-toc a {
  color: var(--charcoal);
  text-decoration: none;
  transition: color 0.2s ease;
}
.article-toc a:hover { color: var(--emerald); }

/* Inline lead magnet — injected mid-article after ~60% H2s */
.inline-lead {
  background: var(--emerald);
  color: var(--ivory);
  padding: 32px 34px;
  margin: 2.2em 0;
  border-left: 3px solid var(--bronze);
}
.inline-lead .eyebrow {
  color: var(--bronze);
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 12px;
}
.inline-lead h3 {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.2;
  color: var(--ivory);
  margin: 0 0 10px;
}
.inline-lead p {
  font-size: 15px;
  line-height: 1.6;
  color: rgba(247, 242, 234, 0.82);
  margin: 0 0 20px;
  max-width: 58ch;
}
.inline-lead-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.inline-lead .cta-btn {
  padding: 13px 20px;
  font-size: 11px;
}
.inline-lead .cta-btn-primary { background: var(--bronze); color: var(--emerald); border-color: var(--bronze); }
.inline-lead .cta-btn-primary:hover { background: var(--ivory); border-color: var(--ivory); }
.inline-lead .cta-btn-ghost {
  color: var(--ivory);
  border-color: rgba(247, 242, 234, 0.4);
}
.inline-lead .cta-btn-ghost:hover { background: rgba(247, 242, 234, 0.08); border-color: var(--ivory); }
@media (max-width: 640px) {
  .inline-lead { padding: 26px 22px; }
  .inline-lead-actions { flex-direction: column; }
  .inline-lead .cta-btn { width: 100%; }
}

/* Related articles */
.article-related {
  background: var(--ivory-deep);
  padding: clamp(60px, 7vw, 96px) var(--edge);
  border-top: 1px solid var(--bronze-30);
}
.article-related-inner { max-width: 1200px; margin: 0 auto; }
.article-related-head {
  text-align: center;
  margin-bottom: 48px;
}
.article-related-head .eyebrow { border-bottom: none; padding-bottom: 0; }
.article-related-head .headline { font-size: clamp(28px, 3.6vw, 42px); margin: 12px 0 0; }
.article-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.5vw, 32px);
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 1024px) {
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .article-related-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; }
  .article-related-grid { grid-template-columns: 1fr; }
  .blog-display { font-size: clamp(32px, 10vw, 48px); }
  .article-title { font-size: clamp(26px, 8vw, 38px); }
  .article-body { font-size: 16px; line-height: 1.7; }
  .blog-filters { gap: 6px; padding-bottom: 24px; }
  .chip { padding: 8px 12px; font-size: 10px; letter-spacing: 0.16em; }
}