/* =========================================================
   Fountain IT — /blog.html (hub) and /blog-*.html (article
   detail pages). Loaded alongside css/style.css + css/mega-menu.css
   + css/pages.css: reuses design tokens, header, footer, .section,
   .badge, .btn, .filter-btn/.directory-filters, .pg-hero, .pg-crumb,
   .cta-section from those files. This file carries the blog-specific
   layout — an iOS-glass + Material-elevation hybrid: frosted,
   continuous-radius cards with soft "spring" hover lift, segmented
   pill controls, and floating elevated share/progress affordances.
   ========================================================= */

.blog-main, .pg-main { position: relative; z-index: 1; }

/* ---------- Category chip (shared: cards + article header) ---------- */
.blog-chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.4px; text-transform: uppercase;
  padding: 7px 14px; border-radius: 30px;
  background: color-mix(in srgb, var(--chip-accent, var(--accent)) 22%, rgba(6,12,22,0.7));
  color: #fff;
  border: 1px solid color-mix(in srgb, var(--chip-accent, var(--accent)) 55%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}

/* ---------- Hero search (iOS-style frosted pill) ---------- */
.blog-search {
  display: flex; align-items: center; gap: 12px;
  max-width: 560px; margin-top: 34px;
  padding: 15px 22px; border-radius: 30px;
  background: var(--glass-bg-strong); border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(160%); -webkit-backdrop-filter: blur(24px) saturate(160%);
  box-shadow: var(--shadow-rest);
  transition: box-shadow 0.35s var(--ease-fluid), border-color 0.35s ease;
}
.blog-search:focus-within { border-color: color-mix(in srgb, var(--accent) 55%, transparent); box-shadow: var(--shadow-elevate); }
.blog-search i { color: var(--accent-ink); font-size: 15px; flex-shrink: 0; }
.blog-search input {
  flex: 1; min-width: 0; background: none; border: none; outline: none;
  font-family: var(--font-body); font-size: 15px; color: var(--ink);
}
.blog-search input::placeholder { color: var(--ink-mute); }
.blog-search-count { font-family: var(--font-mono); font-size: 12px; color: var(--ink-mute); white-space: nowrap; }
@media (max-width: 640px) { .blog-search { padding: 13px 18px; } .blog-search input { font-size: 14px; } }

/* ---------- Featured post (big split glass card) ---------- */
.blog-featured-section { padding-top: 20px; padding-bottom: 20px; }
.blog-featured {
  display: grid; grid-template-columns: 1.05fr 0.95fr; align-items: stretch;
  background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 28px;
  overflow: hidden; text-decoration: none; color: inherit;
  box-shadow: var(--shadow-rest);
  transition: transform 0.5s var(--ease-fluid), box-shadow 0.5s var(--ease-fluid), border-color 0.4s ease;
}
.blog-featured:hover { transform: translateY(-6px); box-shadow: var(--shadow-elevate); border-color: color-mix(in srgb, var(--card-accent) 50%, transparent); }
.blog-featured-media { position: relative; min-height: 320px; overflow: hidden; }
.blog-featured-img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.9s var(--ease-fluid); }
.blog-featured:hover .blog-featured-img { transform: scale(1.06); }
.blog-featured-tag {
  position: absolute; top: 18px; left: 18px;
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase;
  padding: 8px 16px; border-radius: 30px; color: #061019;
  background: linear-gradient(120deg, var(--accent), var(--bg-c2));
  box-shadow: 0 10px 22px -6px color-mix(in srgb, var(--accent) 55%, transparent);
}
.blog-featured-body { padding: 40px 44px; display: flex; flex-direction: column; justify-content: center; gap: 6px; }
.blog-featured-body .blog-chip { align-self: flex-start; margin-bottom: 10px; }
.blog-featured-body h2 { font-size: 30px; font-weight: 500; line-height: 1.22; color: var(--ink); letter-spacing: -0.3px; margin-bottom: 14px; }
.blog-featured-body p { font-size: 15px; line-height: 1.65; color: var(--ink-soft); margin-bottom: 22px; }
.blog-featured-body .blog-meta { margin-bottom: 26px; }
.blog-featured-body .btn { align-self: flex-start; }
@media (max-width: 900px) {
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured-media { min-height: 220px; }
  .blog-featured-body { padding: 30px 26px; }
  .blog-featured-body h2 { font-size: 24px; }
}

/* ---------- Meta row (dates, read time, author) ---------- */
.blog-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; font-size: 13px; color: var(--ink-soft); }
.blog-meta span { display: inline-flex; align-items: center; gap: 7px; }
.blog-meta i { color: var(--accent-ink); font-size: 12.5px; }
.blog-meta-lg { margin-top: 24px; gap: 22px; font-size: 13.5px; }

.blog-author-chip { display: inline-flex; align-items: center; gap: 10px; }
.blog-author-chip span { display: flex; flex-direction: column; gap: 2px; align-items: flex-start; }
.blog-author-chip em { font-style: normal; font-size: 11.5px; color: var(--ink-mute); }
.blog-monogram {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 11px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--bg-c2));
  box-shadow: 0 6px 14px -4px color-mix(in srgb, var(--accent) 55%, transparent);
}
.blog-monogram-lg { width: 52px; height: 52px; font-size: 15px; }

/* ---------- Filter pills (segmented, extends .directory-filters/.filter-btn) ---------- */
.blog-filters { margin-bottom: 40px; }
.filter-btn { transition: transform 0.3s var(--ease-spring), background 0.3s ease, border-color 0.3s ease, color 0.3s ease; }
.filter-btn:active { transform: scale(0.96); }
.filter-btn em { opacity: 0.65; font-style: normal; margin-left: 3px; }

/* ---------- Blog grid + cards ---------- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.blog-card {
  display: flex; flex-direction: column; text-decoration: none; color: inherit;
  background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 22px;
  overflow: hidden; box-shadow: var(--elevation-2);
  transition: transform 0.45s var(--ease-fluid), box-shadow 0.45s var(--ease-fluid), border-color 0.35s ease;
}
.blog-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-elevate); border-color: color-mix(in srgb, var(--card-accent) 48%, transparent); }
.blog-card-media { position: relative; height: 190px; overflow: hidden; }
.blog-card-img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.8s var(--ease-fluid); }
.blog-card:hover .blog-card-img { transform: scale(1.08); }
.blog-card-media .blog-chip { position: absolute; left: 14px; bottom: -14px; }
.blog-card-body { padding: 28px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.blog-card-body .blog-meta { font-size: 12px; gap: 14px; margin-bottom: 14px; }
.blog-card-body h3 { font-size: 18px; font-weight: 500; line-height: 1.35; color: var(--ink); margin-bottom: 10px; }
.blog-card-body p { font-size: 13.5px; line-height: 1.6; color: var(--ink-soft); margin-bottom: 18px; flex: 1; }
.blog-card-cta {
  display: inline-flex; align-items: center; gap: 8px; align-self: flex-start;
  font-size: 13.5px; font-weight: 600; color: var(--accent-ink); text-decoration: none;
}
.blog-card-cta-arrow { width: 13px; height: 13px; transition: transform 0.3s var(--ease-spring); }
.blog-card:hover .blog-card-cta-arrow, .blog-card-cta:hover .blog-card-cta-arrow { transform: translateX(4px); }

/* ---- "Coming soon" placeholder tile ---- */
.blog-card-soon { border-style: dashed; opacity: 0.82; box-shadow: none; }
.blog-card-soon:hover { transform: none; box-shadow: none; border-color: var(--glass-border); }
.blog-card-soon .blog-card-img { filter: grayscale(0.5) brightness(0.7); }
.blog-card-soon:hover .blog-card-img { transform: none; }
.blog-soon-ribbon {
  position: absolute; top: 14px; right: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.4px; text-transform: uppercase;
  padding: 6px 12px; border-radius: 30px; color: #fff;
  background: rgba(6,12,22,0.7); border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.blog-card-cta-ghost { color: var(--ink-soft); }
.blog-card-cta-ghost:hover { color: var(--accent-ink); }

.blog-empty { text-align: center; color: var(--ink-soft); padding: 40px 0; }
.blog-empty a { color: var(--accent-ink); }

@media (max-width: 1100px) { .blog-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 700px) { .blog-grid { grid-template-columns: 1fr; } }

/* ---------- Newsletter band ---------- */
.blog-newsletter {
  display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 36px;
  padding: 44px 46px; border-radius: 26px;
  background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 14%, var(--glass-bg)), color-mix(in srgb, var(--bg-c2) 12%, var(--glass-bg)));
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(22px) saturate(150%); -webkit-backdrop-filter: blur(22px) saturate(150%);
  box-shadow: var(--shadow-rest);
}
.blog-newsletter-copy h3 { font-size: 24px; color: var(--ink); margin: 8px 0 8px; }
.blog-newsletter-copy p { font-size: 14px; color: var(--ink-soft); margin: 0; max-width: 380px; }
.blog-newsletter-form { display: flex; gap: 10px; }
.blog-newsletter-form input {
  flex: 1; min-width: 0; padding: 15px 20px; border-radius: 30px;
  background: var(--input-bg); border: 1px solid var(--input-border);
  font-family: var(--font-body); font-size: 14.5px; color: var(--ink); outline: none;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.blog-newsletter-form input::placeholder { color: var(--input-placeholder); }
.blog-newsletter-form input:focus { border-color: var(--accent-ink); background: var(--input-bg-focus); }
.blog-newsletter-form .btn { flex-shrink: 0; white-space: nowrap; }
.blog-newsletter-status { grid-column: 1 / -1; font-size: 13px; color: var(--accent-ink); margin: 0; min-height: 0; opacity: 0; transition: opacity 0.3s ease; }
.blog-newsletter-status.is-visible { opacity: 1; }
@media (max-width: 800px) {
  .blog-newsletter { grid-template-columns: 1fr; padding: 32px 26px; }
  .blog-newsletter-form { flex-direction: column; }
  .blog-newsletter-form .btn { width: 100%; justify-content: center; }
}

/* =========================================================
   ARTICLE DETAIL PAGE
   ========================================================= */

/* ---- Reading-progress rail (fixed, above header) ---- */
.read-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 210; background: var(--overlay-soft); }
.read-progress span {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--bg-c2));
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 70%, transparent);
  transition: width 0.1s linear;
}
@media (prefers-reduced-motion: reduce) { .read-progress span { transition: none; } }

.blog-article-header { padding: 150px 0 0; }
.blog-article-header-inner { max-width: 820px; }
.blog-article-header .blog-chip { margin-bottom: 18px; }
.blog-article-header h1 { font-size: 44px; font-weight: 500; letter-spacing: -0.5px; line-height: 1.18; color: var(--ink); margin-bottom: 18px; }
.blog-article-dek { font-size: 17px; line-height: 1.6; color: var(--ink-soft); max-width: 680px; }
@media (max-width: 767px) { .blog-article-header { padding: 120px 0 0; } .blog-article-header h1 { font-size: 30px; } }

.blog-article-cover { max-width: 1100px; margin-top: 36px; border-radius: 26px; overflow: hidden; box-shadow: var(--shadow-elevate); }
.blog-article-cover-img { width: 100%; height: auto; max-height: 520px; object-fit: cover; display: block; }

.blog-article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 56px; margin-top: 56px; align-items: start; }
.blog-article-main { min-width: 0; }
@media (max-width: 1024px) { .blog-article-layout { grid-template-columns: 1fr; } .blog-article-side { order: -1; } }

/* ---- Prose typography ---- */
.article-prose { font-size: 16.5px; line-height: 1.8; color: var(--ink-soft); }
.article-prose > p { margin-bottom: 24px; }
.article-prose > p:first-child { font-size: 18.5px; color: var(--ink); }
.article-prose h2 {
  font-size: 26px; font-weight: 500; color: var(--ink); letter-spacing: -0.2px;
  margin: 52px 0 18px; scroll-margin-top: 120px;
}
.article-prose h2:first-child { margin-top: 0; }
.article-prose h3 { font-size: 19px; font-weight: 500; color: var(--ink); margin: 32px 0 14px; scroll-margin-top: 120px; }

.pull-quote {
  position: relative; margin: 34px 0; padding: 8px 8px 8px 30px;
  border-left: 3px solid var(--accent);
  font-family: var(--font-heading); font-size: 20px; font-style: normal; font-weight: 400;
  line-height: 1.5; color: var(--ink);
}
.pull-quote i { display: block; color: var(--accent-ink); opacity: 0.5; font-size: 20px; margin-bottom: 8px; }
.pull-quote p { margin: 0; }

.prose-list { margin: 8px 0 28px; padding: 0; list-style: none; }
.prose-list li { position: relative; padding-left: 26px; margin-bottom: 14px; }
.prose-list li::before {
  content: ''; position: absolute; left: 0; top: 9px; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
}
.prose-list strong, .article-prose strong { color: var(--ink); font-weight: 600; }

.callout-box {
  display: flex; gap: 18px; align-items: flex-start;
  margin: 32px 0; padding: 24px 26px; border-radius: 18px;
  background: var(--glass-bg-strong); border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.callout-ico {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--accent) 20%, transparent); color: var(--accent-ink); font-size: 16px;
  box-shadow: var(--elevation-1);
}
.callout-box h4 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent-ink); margin-bottom: 8px; }
.callout-box p { margin: 0; font-size: 14.5px; color: var(--ink-soft); line-height: 1.65; }

/* ---- Tags ---- */
.blog-tags-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 40px 0 0; }
.blog-tag {
  font-size: 12.5px; color: var(--ink-soft); padding: 8px 16px; border-radius: 30px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
}

/* ---- Reaction bar (iOS segmented control) ---- */
.blog-reaction {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  margin-top: 34px; padding: 18px 24px; border-radius: 20px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
}
.blog-reaction-label { font-size: 14px; color: var(--ink); font-weight: 500; }
.blog-reaction-btns { display: inline-flex; gap: 8px; padding: 4px; border-radius: 30px; background: var(--overlay-soft); }
.blog-reaction-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px; border-radius: 30px; border: none; cursor: pointer;
  background: transparent; color: var(--ink-soft); font-family: var(--font-body); font-size: 13.5px;
  transition: background 0.3s var(--ease-spring), color 0.3s ease, transform 0.25s var(--ease-spring);
}
.blog-reaction-btn:hover { color: var(--ink); }
.blog-reaction-btn:active { transform: scale(0.94); }
.blog-reaction-btn.is-selected { background: var(--accent); color: #061019; }
.blog-reaction-btn.is-selected i { color: #061019; }

/* ---- Author bio card ---- */
.blog-author-card {
  display: flex; gap: 20px; align-items: flex-start;
  margin-top: 40px; padding: 28px; border-radius: 20px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  box-shadow: var(--elevation-1);
}
.blog-author-card h4 { font-size: 16px; color: var(--ink); margin-bottom: 8px; }
.blog-author-card p { font-size: 13.5px; color: var(--ink-soft); line-height: 1.6; margin-bottom: 10px; }
.blog-author-card a { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--accent-ink); text-decoration: none; }
.blog-author-card a svg { width: 12px; height: 12px; }

/* ---- Sidebar ---- */
.blog-article-side { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 110px; }
.blog-side-card {
  padding: 22px 22px; border-radius: 18px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--elevation-1);
}
.blog-side-card h5 { display: flex; align-items: center; gap: 9px; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--ink); margin-bottom: 16px; }
.blog-side-card h5 i { color: var(--accent-ink); }

.blog-toc { display: flex; flex-direction: column; gap: 2px; border-left: 1px solid var(--glass-border); }
.toc-link {
  padding: 8px 0 8px 16px; font-size: 13px; color: var(--ink-soft); text-decoration: none;
  border-left: 2px solid transparent; margin-left: -1px;
  transition: color 0.25s ease, border-color 0.25s ease;
}
.toc-link:hover { color: var(--ink); }
.toc-link.is-active { color: var(--accent-ink); border-left-color: var(--accent-ink); font-weight: 500; }

.blog-share-row { display: flex; flex-wrap: wrap; gap: 10px; position: relative; }
.blog-share-btn {
  width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--overlay-soft); border: 1px solid var(--glass-border); color: var(--ink-soft);
  cursor: pointer; text-decoration: none; font-size: 14px;
  transition: transform 0.3s var(--ease-spring), background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.blog-share-btn:hover { transform: translateY(-3px); color: var(--ink); border-color: color-mix(in srgb, var(--accent) 50%, transparent); }
.blog-share-btn:active { transform: scale(0.9); }
.blog-share-toast {
  position: absolute; left: 0; bottom: -34px; font-size: 12px; color: var(--accent-ink);
  opacity: 0; transform: translateY(4px); transition: opacity 0.25s ease, transform 0.25s ease; pointer-events: none;
}
.blog-share-toast.is-visible { opacity: 1; transform: none; }

.blog-cta-card h5 { color: var(--ink); text-transform: none; font-size: 15px; letter-spacing: normal; margin-bottom: 8px; }
.blog-cta-card p { font-size: 13px; color: var(--ink-soft); margin-bottom: 14px; }
.blog-cta-card .btn { width: 100%; justify-content: center; }

@media (max-width: 1024px) { .blog-article-side { position: static; flex-direction: row; flex-wrap: wrap; } .blog-side-card { flex: 1; min-width: 240px; } }
@media (max-width: 640px) { .blog-article-side { flex-direction: column; } }

/* ---- Prev / Next ---- */
.blog-prevnext { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 60px; }
.blog-prevnext-item {
  display: flex; flex-direction: column; gap: 8px; padding: 22px 24px; border-radius: 18px;
  background: var(--glass-bg); border: 1px solid var(--glass-border); text-decoration: none;
  box-shadow: var(--elevation-1);
  transition: transform 0.4s var(--ease-fluid), box-shadow 0.4s var(--ease-fluid), border-color 0.3s ease;
}
.blog-prevnext-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-elevate); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.blog-prevnext-next { text-align: right; align-items: flex-end; }
.blog-prevnext-label { font-size: 12px; color: var(--accent-ink); display: inline-flex; align-items: center; gap: 8px; }
.blog-prevnext-item strong { font-size: 15px; font-weight: 500; color: var(--ink); line-height: 1.4; }
@media (max-width: 700px) { .blog-prevnext { grid-template-columns: 1fr; } .blog-prevnext-next { text-align: left; align-items: flex-start; } }

.blog-related-section { padding-top: 60px; }
.blog-grid-related { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1100px) { .blog-grid-related { grid-template-columns: 1fr 1fr; } }
@media (max-width: 700px) { .blog-grid-related { grid-template-columns: 1fr; } }