/* ============================================================
   LicensePrintCheck Blog — blog.css v2.1
   Pixel-perfect match to design. Mobile-first responsive.
   ============================================================ */

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:        #2563EB;
  --blue-dark:   #1d4ed8;
  --blue-light:  #eff6ff;
  --purple:      #7c3aed;
  --pink:        #db2777;
  --green:       #16a34a;
  --orange:      #d97706;
  --text:        #111827;
  --text-2:      #374151;
  --muted:       #64748b;
  --muted-light: #94a3b8;
  --border:      #e5e7eb;
  --bg:          #f8fafc;
  --white:       #ffffff;
  --radius:      12px;
  --radius-sm:   8px;
  --shadow:      0 1px 4px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.06);
  --shadow-md:   0 2px 8px rgba(0,0,0,.08), 0 8px 24px rgba(0,0,0,.08);
  --font:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --nav-h:       68px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

/* ── Utility buttons ───────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--blue);
  color: var(--white);
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .9rem;
  transition: background .2s, transform .15s;
}
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }

/* ══════════════════════════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════════════════════════ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
  width: 100%;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: 16px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 500;
  flex-shrink: 0;
  white-space: nowrap;
}
.nav-logo strong { font-weight: 800; color: var(--text); }
.logo-dot { color: var(--blue); font-weight: 700; }

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 6px 13px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 6px;
  transition: color .2s, background .2s;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active { color: var(--blue); }
.nav-links a.active {
  border-bottom: 2px solid var(--blue);
  border-radius: 0;
  padding-bottom: 4px;
}
.btn-nav {
  background: var(--blue) !important;
  color: var(--white) !important;
  border-radius: var(--radius-sm) !important;
  padding: 8px 16px !important;
  font-weight: 600 !important;
  margin-left: 8px;
  border-bottom: none !important;
  transition: background .2s !important;
}
.btn-nav:hover { background: var(--blue-dark) !important; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ══════════════════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════════════════ */
.blog-hero {
  background: var(--white);
  padding: 56px 0 40px;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fdf2f8;
  color: #9d174d;
  border: 1px solid #fbcfe8;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 16px;
}
.hero-title-blue {
  color: var(--blue);
  display: block;
}
.hero-sub {
  font-size: .95rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 420px;
  margin-bottom: 28px;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.badge {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-2);
}
.hero-img {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-img img {
  max-width: 480px;
  width: 100%;
}

/* ══════════════════════════════════════════════════════════════
   FILTER / SEARCH BAR
══════════════════════════════════════════════════════════════ */
.filter-bar {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
  position: sticky;
  top: var(--nav-h);
  z-index: 90;
  box-shadow: 0 2px 8px rgba(0,0,0,.04);
  width: 100%;
  overflow: hidden;
}
.filter-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  min-width: 0;
}
.search-form {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--white);
  transition: border-color .2s;
}
.search-form:focus-within { border-color: var(--blue); }
.search-form input[type="search"] {
  border: none;
  outline: none;
  padding: 9px 14px;
  font-size: .875rem;
  font-family: inherit;
  width: 200px;
  max-width: 100%;
  min-width: 0;
  background: transparent;
  color: var(--text);
}
.btn-search {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--blue);
  color: var(--white);
  border: none;
  padding: 9px 16px;
  font-size: .875rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background .2s;
  white-space: nowrap;
}
.btn-search:hover { background: var(--blue-dark); }

/* Category tabs */
.cat-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  flex: 1;
  min-width: 0;
  overflow: hidden;
}
.cat-tab {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--muted);
  border: 1.5px solid var(--border);
  background: var(--white);
  transition: all .2s;
  white-space: nowrap;
}
.cat-tab:hover { color: var(--blue); border-color: var(--blue); }
.cat-tab.active {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}

/* ══════════════════════════════════════════════════════════════
   MAIN GRID
══════════════════════════════════════════════════════════════ */
.blog-main { padding: 40px 0 60px; }
.main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}
.main-grid > * { min-width: 0; }

/* ══════════════════════════════════════════════════════════════
   POST CARDS
══════════════════════════════════════════════════════════════ */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.posts-grid > * { min-width: 0; }

.post-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
  display: flex;
  flex-direction: column;
}
.post-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

/* Featured badge */
.card-thumb-link {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='48' viewBox='0 0 48 48'%3E%3Crect width='48' height='48' fill='%23f1f5f9'/%3E%3Cpath d='M12 32l8-10 6 8 4-5 6 7H12z' fill='%23cbd5e1'/%3E%3Ccircle cx='32' cy='18' r='4' fill='%23cbd5e1'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 64px 64px;
  width: 100%;
}
.card-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
  display: block;
}
.post-card:hover .card-thumb { transform: scale(1.04); }
.badge-featured {
  position: absolute;
  top: 10px;
  left: 10px;
  background: #ef4444;
  color: var(--white);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .07em;
  padding: 3px 9px;
  border-radius: 4px;
  z-index: 2;
}

.card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 6px;
}
.card-cat {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--blue);
}
.card-cat:hover { color: var(--blue-dark); }
.card-title {
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
}
.card-title a:hover { color: var(--blue); }
.card-excerpt {
  font-size: .82rem;
  color: var(--muted);
  line-height: 1.55;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .75rem;
  color: var(--muted-light);
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
.card-date, .card-read {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* No posts */
.no-posts {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--muted);
}

/* ══════════════════════════════════════════════════════════════
   PAGINATION
══════════════════════════════════════════════════════════════ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 600;
  color: var(--text-2);
  border: 1.5px solid var(--border);
  background: var(--white);
  transition: all .2s;
}
.page-btn:hover { color: var(--blue); border-color: var(--blue); }
.page-btn.active {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.page-btn.disabled {
  opacity: .4;
  cursor: not-allowed;
  pointer-events: none;
}
.page-dots { padding: 0 4px; color: var(--muted); }

/* ══════════════════════════════════════════════════════════════
   SIDEBAR
══════════════════════════════════════════════════════════════ */
.sidebar {
  display: none;
}

.sidebar-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.sidebar-title {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.fire { font-size: 1.1rem; }

/* Popular list */
.popular-list { display: flex; flex-direction: column; gap: 14px; }
.popular-item { display: flex; gap: 10px; align-items: flex-start; }
.popular-thumb-link {
  flex-shrink: 0;
  border-radius: 6px;
  overflow: hidden;
  display: block;
  width: 64px;
  height: 48px;
  background: var(--bg);
}
.popular-thumb-link img {
  width: 64px;
  height: 48px;
  object-fit: cover;
  transition: transform .3s;
}
.popular-thumb-link:hover img { transform: scale(1.06); }
.popular-info { flex: 1; min-width: 0; }
.popular-title {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s;
}
.popular-title:hover { color: var(--blue); }
.popular-date { font-size: .72rem; color: var(--muted-light); display: block; margin-top: 3px; }

/* Newsletter */
.sidebar-newsletter {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: var(--white);
  border: none;
}
.newsletter-top { margin-bottom: 16px; }
.newsletter-icon { font-size: 2rem; margin-bottom: 8px; }
.sidebar-newsletter h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--white); }
.sidebar-newsletter p { font-size: .8rem; opacity: .85; line-height: 1.55; }
.newsletter-form {}
.nl-row {
  display: flex;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 8px;
}
.nl-row input {
  flex: 1;
  border: none;
  outline: none;
  padding: 10px 12px;
  font-size: .825rem;
  font-family: inherit;
  background: rgba(255,255,255,.15);
  color: var(--white);
  min-width: 0;
}
.nl-row input::placeholder { color: rgba(255,255,255,.6); }
.btn-subscribe {
  background: #ec4899;
  color: var(--white);
  border: none;
  padding: 10px 14px;
  font-size: .8rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: background .2s;
}
.btn-subscribe:hover { background: #db2777; }
.nl-note { font-size: .72rem; opacity: .8; display: flex; align-items: center; gap: 4px; }

/* CTA */
.sidebar-cta {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563EB 100%);
  color: var(--white);
  border: none;
}
.sidebar-cta h3 { font-size: .95rem; font-weight: 700; margin-bottom: 8px; color: var(--white); }
.sidebar-cta p { font-size: .8rem; opacity: .85; margin-bottom: 14px; }
.cta-bottom { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.btn-check-now {
  display: inline-flex;
  align-items: center;
  background: var(--white);
  color: var(--blue);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 700;
  transition: background .2s, transform .15s;
  white-space: nowrap;
}
.btn-check-now:hover { background: #eff6ff; transform: translateY(-1px); }

/* ══════════════════════════════════════════════════════════════
   TRUST BAR
══════════════════════════════════════════════════════════════ */
.trust-bar {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
  width: 100%;
  overflow: hidden;
}
.trust-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-2);
}
.trust-icon { font-size: 1.3rem; }

/* ══════════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════════ */
.site-footer {
  background: #ffffff;
  color: #374151;
  padding: 56px 0 0;
  border-top: 1px solid #e5e7eb;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 2fr;
  gap: 40px;
}
.footer-brand .nav-logo { color: var(--text-1); margin-bottom: 12px; }
.footer-brand .nav-logo strong { color: var(--text-1); }
.footer-brand p { font-size: .82rem; line-height: 1.65; color: #6b7280; max-width: 240px; margin-bottom: 20px; }

.social-links { display: flex; gap: 10px; }
.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #f3f4f6;
  color: #6b7280;
  transition: background .2s, color .2s;
}
.social-link:hover { background: var(--blue); color: var(--white); }

.footer-col h4 {
  font-size: .85rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.footer-col ul { display: flex; flex-direction: column; gap: 9px; }
.footer-col ul li a {
  font-size: .82rem;
  color: #6b7280;
  transition: color .2s;
}
.footer-col ul li a:hover { color: var(--blue); }
.footer-disclaimer p { font-size: .78rem; color: #9ca3af; line-height: 1.65; }

.footer-bottom {
  border-top: 1px solid #e5e7eb;
  padding: 20px 0;
  margin-top: 48px;
}
.footer-bottom p { font-size: .8rem; color: #9ca3af; text-align: center; }

/* ══════════════════════════════════════════════════════════════
   BREADCRUMB (post page)
══════════════════════════════════════════════════════════════ */
.breadcrumb-bar {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  overflow-x: hidden;
}
.breadcrumb-inner { overflow-x: auto; max-width: 100%; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: .78rem;
  white-space: nowrap;
  width: max-content;
  max-width: 100%;
}
.breadcrumb a { color: var(--muted); transition: color .2s; }
.breadcrumb a:hover { color: var(--blue); }
.bc-sep { color: var(--muted-light); font-size: .7rem; margin: 0 2px; }
.bc-current { color: var(--text-2); font-weight: 500; }

/* ══════════════════════════════════════════════════════════════
   POST PAGE
══════════════════════════════════════════════════════════════ */
.post-main { padding: 36px 0 60px; }
.post-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}
.post-grid > * { min-width: 0; }

/* Post header */
.post-header { margin-bottom: 24px; }
.post-cat-badge {
  display: inline-block;
  background: var(--blue-light);
  color: var(--blue);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.post-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 16px;
}
.post-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: .82rem;
  color: var(--muted);
}
.byline-author, .byline-date, .byline-read {
  display: flex;
  align-items: center;
  gap: 5px;
}

/* Hero image */
.post-hero-img {
  width: 100%;
  border-radius: var(--radius);
  margin-bottom: 32px;
  aspect-ratio: 16/9;
  object-fit: cover;
}

/* Article body */
.post-article {
  max-width: 780px;
  margin: 0 auto;
  width: 100%;
  min-width: 0;
}
.post-content {
  font-size: .97rem;
  line-height: 1.85;
  color: var(--text-2);
  word-break: break-word;
  overflow-wrap: break-word;
  min-width: 0;
}
.post-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin: 32px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}
.post-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin: 24px 0 10px;
}
.post-content h4 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  margin: 20px 0 8px;
}
.post-content p { margin-bottom: 16px; }
.post-content ul, .post-content ol {
  margin: 0 0 16px 24px;
}
.post-content ul { list-style: disc; }
.post-content ol { list-style: decimal; }
.post-content li { margin-bottom: 6px; }
.post-content strong { font-weight: 700; color: var(--text); }
.post-content em { font-style: italic; }
.post-content a { color: var(--blue); text-decoration: underline; }
.post-content a:hover { color: var(--blue-dark); }
.post-content blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--blue-light);
  border-left: 4px solid var(--blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-2);
}
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: .875rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}
.post-content th {
  background: var(--blue);
  color: var(--white);
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
}
.post-content td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-2);
}
.post-content tr:last-child td { border-bottom: none; }
.post-content tr:nth-child(even) td { background: var(--bg); }
.post-content code {
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: .85em;
  font-family: 'Courier New', monospace;
}
.post-content pre {
  background: #1e293b;
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
  margin: 20px 0;
}
.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: #e2e8f0;
  font-size: .875rem;
}
.post-content img {
  border-radius: var(--radius-sm);
  margin: 16px 0;
  max-width: 100%;
}

/* Share bar */
.post-share {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 40px 0 0;
  padding: 20px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.share-label { font-weight: 700; font-size: .875rem; color: var(--text); }
.share-btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .2s, transform .15s;
  border: none;
  font-family: inherit;
}
.share-btn:hover { opacity: .85; transform: translateY(-1px); }
.share-fb  { background: #1877f2; color: #fff; }
.share-tw  { background: #1da1f2; color: #fff; }
.share-wa  { background: #25d366; color: #fff; }
.share-copy { background: var(--border); color: var(--text-2); }

/* Prev / Next */
.post-nav { margin: 32px 0; }
.post-nav-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.post-nav-btn {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .2s, background .2s;
}
.post-nav-btn:hover { border-color: var(--blue); background: var(--blue-light); }
.post-nav-next { text-align: right; }
.nav-dir { font-size: .75rem; color: var(--blue); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.nav-ttl { font-size: .875rem; font-weight: 600; color: var(--text); line-height: 1.35; }

/* Related posts */
.related-posts { margin-top: 40px; }
.related-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* Sticky CTA in post sidebar */
.sticky-cta { position: sticky; top: calc(var(--nav-h) + 20px); }
.post-sidebar { position: sticky; top: calc(var(--nav-h) + 20px); }

/* ══════════════════════════════════════════════════════════════
   BACK TO TOP
══════════════════════════════════════════════════════════════ */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--blue);
  color: var(--white);
  border-radius: 50%;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37,99,235,.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s, transform .3s;
  z-index: 999;
  cursor: pointer;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-3px); }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — LARGE TABLET (≤ 1024px)
══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 28px;
  }
  .footer-brand { grid-column: 1 / -1; }
  .footer-disclaimer { grid-column: 1 / -1; }

  /* Posts */
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }

  /* Hero image smaller */
  .hero-img img { max-width: 360px; }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — TABLET (≤ 860px)
══════════════════════════════════════════════════════════════ */
@media (max-width: 860px) {
  /* Hero stacks before 768 to prevent overlap */
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 20px;
    text-align: center;
  }
  .hero-img { display: none; }
  .hero-sub { max-width: 100%; margin-left: auto; margin-right: auto; }
  .hero-badges { justify-content: center; }
  .blog-hero { padding: 36px 0 28px; }

  /* Search form full width */
  .filter-inner { flex-wrap: wrap; gap: 12px; }
  .search-form { flex: 1 1 100%; }
  .search-form input[type="search"] { flex: 1; width: auto; min-width: 0; }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — MOBILE (≤ 768px)
══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --nav-h: 60px; }

  .container { padding: 0 16px; }

  /* ── Navbar ── */
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,.1);
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .navbar { position: sticky; top: 0; }
  .nav-links a {
    padding: 12px 8px;
    border-radius: 0;
    border-bottom: 1px solid var(--border);
    font-size: .9rem;
    white-space: normal;
  }
  .nav-links a:last-child { border-bottom: none; }
  .nav-links a.active { border-bottom: 1px solid var(--border); padding-bottom: 12px; }
  .btn-nav {
    margin: 10px 0 0;
    text-align: center;
    border-radius: var(--radius-sm) !important;
    padding: 12px 16px !important;
    border-bottom: none !important;
  }

  /* ── Hero ── */
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 16px;
    text-align: center;
  }
  .hero-img { display: none; }
  .hero-eyebrow { margin-left: auto; margin-right: auto; }
  .blog-hero { padding: 28px 0 24px; }
  .hero-title { font-size: clamp(1.4rem, 6vw, 1.8rem); line-height: 1.25; }
  .hero-sub { font-size: .9rem; max-width: 100%; }
  .hero-badges { justify-content: center; flex-wrap: wrap; gap: 10px; }

  /* ── Filter bar ── */
  .filter-bar { position: static; padding: 14px 0; }
  .filter-inner { flex-direction: column; align-items: stretch; gap: 10px; }
  .search-form { width: 100%; }
  .search-form input[type="search"] { flex: 1; width: auto; min-width: 0; font-size: .85rem; }
  .btn-search { padding: 9px 14px; font-size: .85rem; }
  .cat-tabs {
    gap: 6px;
    overflow-x: auto;
    overflow-y: hidden;
    flex-wrap: nowrap;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
  }
  .cat-tabs::-webkit-scrollbar { height: 3px; }
  .cat-tabs::-webkit-scrollbar-track { background: var(--border); }
  .cat-tabs::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 2px; }
  .cat-tab { font-size: .76rem; padding: 5px 12px; }

  /* ── Main / Post grids ── */
  .main-grid { grid-template-columns: 1fr; }
  .post-grid  { grid-template-columns: 1fr; }
  .blog-main  { padding: 28px 0 48px; }
  .post-main  { padding: 24px 0 48px; }

  /* ── Post cards ── */
  .posts-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .card-featured .card-title { font-size: 1rem; }

  /* ── Post article ── */
  .post-article { max-width: 100%; }
  .post-title { font-size: clamp(1.3rem, 5.5vw, 1.7rem); line-height: 1.3; }
  .post-content { font-size: .9rem; }
  .post-content h2 { font-size: 1.2rem; }
  .post-content h3 { font-size: 1.05rem; }
  .post-content pre { overflow-x: auto; font-size: .8rem; }
  .post-content table { display: block; overflow-x: auto; white-space: nowrap; font-size: .78rem; }
  .post-content th, .post-content td { padding: 8px 10px; }
  .post-content img { width: 100%; height: auto; }
  .sticky-cta { position: static; }

  /* ── Breadcrumb ── */
  .breadcrumb { font-size: .72rem; }

  /* ── Post byline ── */
  .post-byline { flex-wrap: wrap; gap: 8px; font-size: .78rem; }

  /* ── Post share ── */
  .post-share { flex-wrap: wrap; gap: 8px; }
  .share-btn { padding: 7px 12px; font-size: .78rem; }

  /* ── Post nav ── */
  .post-nav-inner { grid-template-columns: 1fr; gap: 10px; }
  .post-nav-next { text-align: left; }

  /* ── Pagination ── */
  .pagination { gap: 4px; flex-wrap: wrap; }
  .page-btn { min-width: 36px; height: 36px; font-size: .82rem; }

  /* ── Trust bar ── */
  .trust-inner { justify-content: flex-start; gap: 12px; flex-wrap: wrap; }
  .trust-item { font-size: .78rem; }

  /* ── Footer ── */
  .site-footer { padding: 40px 0 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-disclaimer { grid-column: 1 / -1; }
  .footer-bottom { margin-top: 32px; padding: 16px 0; }

  /* ── Back to top ── */
  .back-to-top { bottom: 16px; right: 16px; width: 40px; height: 40px; font-size: 1rem; }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE (≤ 480px)
══════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .container { padding: 0 14px; }

  /* Hero */
  .hero-title { font-size: clamp(1.25rem, 7vw, 1.5rem); }
  .hero-eyebrow { font-size: .75rem; padding: 4px 12px; }
  .hero-badges { flex-direction: column; gap: 8px; align-items: center; }
  .blog-hero { padding: 24px 0 20px; }

  /* Posts */
  .posts-grid { grid-template-columns: 1fr; gap: 14px; }
  .card-body { padding: 14px; }
  .card-title { font-size: .95rem; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 20px; }
  .footer-col h4 { margin-bottom: 10px; }

  /* Post content */
  .post-content h2 { font-size: 1.1rem; }
  .post-content h3 { font-size: 1rem; }
  .post-share { gap: 6px; }
  .share-btn { padding: 6px 10px; font-size: .75rem; }

  /* Pagination */
  .pagination { gap: 3px; }
  .page-btn { min-width: 32px; height: 32px; font-size: .78rem; }

  /* Search */
  .btn-search { padding: 9px 12px; }
  .btn-search span { display: none; }

  /* Nav logo text size */
  .nav-logo { font-size: .9rem; }
  .nav-logo svg { width: 26px; height: 26px; }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — TINY (≤ 360px)
══════════════════════════════════════════════════════════════ */
@media (max-width: 360px) {
  .container { padding: 0 12px; }
  .hero-title { font-size: 1.2rem; }
  .hero-sub { font-size: .85rem; }
  .cat-tab { font-size: .72rem; padding: 4px 10px; }
  .card-title { font-size: .9rem; }
  .post-title { font-size: 1.2rem; }
  .footer-bottom p { font-size: .72rem; }
}

/* ══════════════════════════════════════════════════════════════
   REDUCED MOTION
══════════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ══════════════════════════════════════════════════════════════
   PRINT
══════════════════════════════════════════════════════════════ */
@media print {
  .navbar, .filter-bar, .sidebar, .trust-bar, .site-footer,
  .back-to-top, .post-share, .post-nav, .related-posts { display: none !important; }
  .post-grid, .main-grid { grid-template-columns: 1fr; }
  .post-content { font-size: 11pt; }
}