/* ============================================================
   INVITTY CYBERBLOG - LEAD GENERATION THEME
   Design System & Complete Styles
   ============================================================ */

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Primary Palette - Dark Navy + Electric Cyan (matches invitty.com) */
  --color-bg-primary: #0a0e1a;
  --color-bg-secondary: #111827;
  --color-bg-card: #1a2035;
  --color-bg-card-hover: #1e2640;
  --color-bg-elevated: #222b45;
  --color-bg-input: #151b2e;

  --color-accent: #00d4ff;
  --color-accent-dim: #0098b8;
  --color-accent-glow: rgba(0, 212, 255, 0.15);
  --color-accent-border: rgba(0, 212, 255, 0.25);
  --color-cta: #00e68a;
  --color-cta-hover: #00cc7a;
  --color-warning: #ff6b35;
  --color-danger: #ff3860;

  --color-text-primary: #e8edf5;
  --color-text-secondary: #8892a8;
  --color-text-muted: #5a6478;
  --color-text-heading: #ffffff;
  --color-text-link: #00d4ff;

  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-light: rgba(255, 255, 255, 0.1);

  /* Typography */
  --font-display: 'Plus Jakarta Sans', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'DM Sans', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 780px;
  --sidebar-width: 340px;

  /* Borders & Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-elevated: 0 8px 40px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: var(--color-text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-accent); }

img { max-width: 100%; height: auto; display: block; }

::selection {
  background: rgba(0, 212, 255, 0.3);
  color: #fff;
}

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}
.container--narrow { max-width: var(--container-narrow); }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* --- Background Grid Pattern --- */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base);
}

.site-header.scrolled {
  background: rgba(10, 14, 26, 0.95);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--color-text-heading);
  text-decoration: none;
}

.site-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-accent), #0066ff);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #fff;
}

.site-logo .domain-badge {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  border: 1px solid var(--color-accent-border);
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Main Navigation */
.main-nav { display: flex; align-items: center; gap: var(--space-xs); }

.main-nav a {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-text-heading);
  background: rgba(255, 255, 255, 0.05);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.header-cta {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: #0a0e1a !important;
  background: var(--color-accent);
  padding: 9px 22px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.header-cta:hover {
  background: #fff;
  color: #0a0e1a !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  padding: var(--space-4xl) 0 var(--space-3xl);
  overflow: hidden;
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  border: 1px solid var(--color-accent-border);
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: var(--space-lg);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  color: var(--color-text-heading);
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--color-accent), #6366f1, #00e68a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 620px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

/* Service Pills */
.service-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  max-width: 900px;
  margin: 0 auto;
}

.service-pill {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  padding: 6px 16px;
  border-radius: 30px;
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
}

.service-pill:hover {
  color: var(--color-accent);
  border-color: var(--color-accent-border);
  background: var(--color-accent-glow);
  transform: translateY(-2px);
}

/* ============================================================
   BLOG GRID
   ============================================================ */
.content-area {
  padding: var(--space-3xl) 0;
  position: relative;
  z-index: 1;
}

.content-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: var(--space-3xl);
  align-items: start;
}

/* Section Headers */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text-heading);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.section-title .accent-bar {
  width: 4px;
  height: 24px;
  background: var(--color-accent);
  border-radius: 2px;
}

.view-all {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Featured Post (Large) */
.featured-post {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-2xl);
  transition: all var(--transition-slow);
}

.featured-post:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.featured-post .post-thumbnail {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
}

.featured-post .post-content {
  padding: var(--space-2xl);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.post-category {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  border: 1px solid var(--color-accent-border);
  padding: 3px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.post-date, .post-read-time {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.post-title {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--color-text-heading);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

.featured-post .post-title { font-size: 1.6rem; }

.post-excerpt {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.read-more-link {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-base);
}

.read-more-link:hover { gap: 12px; }

/* Post Grid */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.post-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
}

.post-card:hover {
  border-color: var(--color-accent-border);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.post-card .post-thumbnail {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.post-card .post-content {
  padding: var(--space-lg);
}

.post-card .post-title {
  font-size: 1.05rem;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  position: sticky;
  top: 90px;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.sidebar-widget {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.widget-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-text-heading);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: 8px;
}

.widget-title::before {
  content: '';
  width: 3px;
  height: 16px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* Lead Capture Widget */
.lead-capture {
  background: linear-gradient(135deg, var(--color-bg-card), rgba(0, 212, 255, 0.05));
  border-color: var(--color-accent-border);
}

.lead-capture .widget-description {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.lead-form .form-group {
  margin-bottom: var(--space-md);
}

.lead-form input,
.lead-form select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--color-text-primary);
  background: var(--color-bg-input);
  border: 1px solid var(--color-border-light);
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition-fast);
}

.lead-form input:focus,
.lead-form select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.lead-form input::placeholder {
  color: var(--color-text-muted);
}

.btn-cta {
  width: 100%;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: #0a0e1a;
  background: var(--color-cta);
  border: none;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-cta:hover {
  background: var(--color-cta-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(0, 230, 138, 0.3);
}

.form-privacy {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
  text-align: center;
}

/* Categories Widget */
.category-list {
  list-style: none;
}

.category-list li {
  border-bottom: 1px solid var(--color-border);
}

.category-list li:last-child { border: none; }

.category-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.category-list a:hover {
  color: var(--color-accent);
  padding-left: 8px;
}

.category-count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  padding: 2px 8px;
  border-radius: 10px;
}

/* Popular Posts Widget */
.popular-post-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.popular-post-item:last-child { border: none; }

.popular-post-item .thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.popular-post-item .title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin-bottom: 4px;
}

.popular-post-item .meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ============================================================
   SINGLE POST
   ============================================================ */
.single-post-header {
  text-align: center;
  padding: var(--space-3xl) 0 var(--space-2xl);
}

.single-post-header .post-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: var(--space-lg);
}

.post-body {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding-bottom: var(--space-4xl);
}

.post-body h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text-heading);
  margin: var(--space-2xl) 0 var(--space-md);
  letter-spacing: -0.01em;
}

.post-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-heading);
  margin: var(--space-xl) 0 var(--space-md);
}

.post-body p {
  margin-bottom: var(--space-lg);
  font-size: 1.05rem;
  line-height: 1.8;
}

.post-body ul, .post-body ol {
  margin: 0 0 var(--space-lg) var(--space-xl);
}

.post-body li {
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.post-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-xl) 0;
  background: var(--color-accent-glow);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-text-primary);
}

.post-body code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  background: var(--color-bg-elevated);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

.post-body pre {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  overflow-x: auto;
  margin: var(--space-xl) 0;
}

.post-body pre code {
  background: none;
  border: none;
  padding: 0;
}

.post-body img {
  border-radius: var(--radius-md);
  margin: var(--space-xl) 0;
}

/* In-Content CTA */
.inline-cta {
  background: linear-gradient(135deg, var(--color-bg-card), rgba(0, 212, 255, 0.08));
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  margin: var(--space-2xl) 0;
}

.inline-cta h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-text-heading);
  margin-bottom: var(--space-sm) !important;
}

.inline-cta p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg) !important;
  font-size: 0.95rem !important;
}

.inline-cta .btn-cta {
  width: auto;
  display: inline-block;
  padding: 12px 32px;
}

/* Table of Contents */
.toc-widget {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.toc-widget .toc-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-heading);
  margin-bottom: var(--space-md);
}

.toc-list {
  list-style: none;
}

.toc-list li {
  padding: 6px 0;
  border-left: 2px solid var(--color-border);
  padding-left: var(--space-md);
  transition: border-color var(--transition-fast);
}

.toc-list li:hover,
.toc-list li.active {
  border-left-color: var(--color-accent);
}

.toc-list a {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.toc-list li:hover a,
.toc-list li.active a {
  color: var(--color-accent);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-3xl) 0 var(--space-xl);
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand .footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--color-text-heading);
  margin-bottom: var(--space-md);
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--color-text-heading);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-lg);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

/* Footer Newsletter */
.footer-newsletter .newsletter-form {
  display: flex;
  gap: 8px;
}

.footer-newsletter input {
  flex: 1;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-primary);
  background: var(--color-bg-input);
  border: 1px solid var(--color-border-light);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  outline: none;
}

.footer-newsletter input:focus {
  border-color: var(--color-accent);
}

.footer-newsletter button {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: #0a0e1a;
  background: var(--color-accent);
  border: none;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-base);
}

.footer-newsletter button:hover {
  background: #fff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-bottom a {
  color: var(--color-accent);
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: var(--space-3xl);
}

.pagination a, .pagination span {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.pagination a:hover {
  border-color: var(--color-accent-border);
  color: var(--color-accent);
}

.pagination .current {
  background: var(--color-accent);
  color: #0a0e1a;
  border-color: var(--color-accent);
}

/* ============================================================
   SEARCH OVERLAY
   ============================================================ */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 26, 0.95);
  z-index: 200;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}

.search-overlay.active { display: flex; }

.search-overlay input {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-text-heading);
  background: none;
  border: none;
  border-bottom: 2px solid var(--color-accent);
  width: 100%;
  max-width: 600px;
  padding: var(--space-md) 0;
  outline: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .content-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner { height: 60px; }
  .main-nav { display: none; }
  .mobile-toggle { display: block; }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    gap: var(--space-xs);
  }

  .hero { padding: var(--space-2xl) 0; }
  .posts-grid { grid-template-columns: 1fr; }

  .sidebar {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.animate-in:nth-child(1) { animation-delay: 0.1s; }
.animate-in:nth-child(2) { animation-delay: 0.2s; }
.animate-in:nth-child(3) { animation-delay: 0.3s; }
.animate-in:nth-child(4) { animation-delay: 0.4s; }

/* Loading skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-card) 25%, var(--color-bg-elevated) 50%, var(--color-bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ============================================================
   SEO-OPTIMIZED BREADCRUMBS
   ============================================================ */
.breadcrumbs {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: var(--space-md) 0;
}

.breadcrumbs a {
  color: var(--color-text-secondary);
}

.breadcrumbs span.separator {
  margin: 0 8px;
  color: var(--color-text-muted);
}

/* Schema-ready Author Box */
.author-box {
  display: flex;
  gap: var(--space-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-top: var(--space-2xl);
}

.author-box .author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.author-box .author-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-text-heading);
  margin-bottom: 4px;
}

.author-box .author-bio {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Social Share Bar */
.share-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.share-bar .share-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: 1rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.share-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent-border);
  background: var(--color-accent-glow);
}

/* ============================================================
   LOGO STYLES
   ============================================================ */
.site-logo-img {
  display: block;
  object-fit: contain;
}

/* ============================================================
   LINKEDIN POSTS SECTION
   ============================================================ */
.linkedin-section {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border);
  position: relative;
  z-index: 1;
}

.linkedin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
}

.linkedin-header .section-title .li-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: #0A66C2;
  border-radius: 5px;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
  margin-right: 6px;
}

.linkedin-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.linkedin-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.linkedin-card:hover {
  border-color: rgba(10, 102, 194, 0.4);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(10, 102, 194, 0.1);
}

.linkedin-card .li-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.linkedin-card .li-card-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.linkedin-card .li-author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.linkedin-card .li-author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0A66C2, #004182);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.linkedin-card .li-author-info .name {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-heading);
  line-height: 1.2;
}

.linkedin-card .li-author-info .role {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.linkedin-card .li-category-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  color: #0A66C2;
  background: rgba(10, 102, 194, 0.12);
  border: 1px solid rgba(10, 102, 194, 0.2);
  padding: 2px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: var(--space-sm);
  align-self: flex-start;
}

.linkedin-card .li-content {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-md);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.linkedin-card .li-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.linkedin-card .li-engagement {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.linkedin-card .li-view-link {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  color: #0A66C2;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.linkedin-card .li-view-link:hover {
  color: #004182;
}

.linkedin-card .li-cta-btn {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  background: #0A66C2;
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.linkedin-card .li-cta-btn:hover {
  background: #004182;
  color: #fff;
}

@media (max-width: 768px) {
  .linkedin-grid {
    grid-template-columns: 1fr;
  }
}