/*
Theme Name: Metaformax Blog
Theme URI: https://blog.metaformax.digital
Author: Metaformax.Digital
Author URI: https://metaformax.digital
Description: Professional modern blog template for Metaformax.Digital — Your Partner for Beyond Digital, Maximum Impact.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: metaformax-blog
Tags: blog, modern, responsive, dark-mode, seo-ready
*/

/* ============================================
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================ */
:root {
  /* Primary Colors */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #60a5fa;
  --color-primary-bg: #eff6ff;
  --color-secondary: #9333ea;
  --color-secondary-hover: #7e22ce;
  --color-accent: #f59e0b;

  /* Category Colors */
  --cat-digital-marketing: #2563eb;
  --cat-micro-saas: #9333ea;
  --cat-web-dev: #14b8a6;
  --cat-ai-automation: #f59e0b;
  --cat-business: #ef4444;
  --cat-news: #6b7280;

  /* Neutral Colors */
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-bg-dark: #111827;
  --color-text: #111827;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;
  --color-border: #e5e7eb;
  --color-border-dark: #374151;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 80px;

  /* Typography */
  --font-heading: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --font-body: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, Tahoma, sans-serif;
  --font-mono: 'Fira Code', 'JetBrains Mono', 'Courier New', monospace;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Container */
  --container-max: 1200px;
  --container-ultra: 1400px;

  /* Header */
  --header-height: 80px;
  --header-height-mobile: 60px;
}

/* Dark Mode */
[data-theme="dark"] {
  --color-bg: #0f172a;
  --color-bg-alt: #1e293b;
  --color-bg-dark: #020617;
  --color-text: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-border: #334155;
  --color-border-dark: #475569;
  --color-primary-light: #60a5fa;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
}

/* ============================================
   2. RESET & BASE
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.3s, color 0.3s;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-primary-hover);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
}

h2 {
  font-size: 36px;
  font-weight: 700;
}

h3 {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.4;
}

h4 {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.4;
}

h5,
h6 {
  font-size: 20px;
  font-weight: 500;
  line-height: 1.5;
}

p {
  margin-bottom: var(--space-lg);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

/* ============================================
   3. READING PROGRESS BAR
   ============================================ */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  z-index: 10001;
  transition: width 0.1s linear;
}

/* ============================================
   4. HEADER / NAVIGATION
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-bg);
  box-shadow: var(--shadow-md);
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background-color 0.3s;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.site-logo img {
  height: 40px;
  width: auto;
}

.site-logo-text {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
}

.nav-menu li a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-sm) 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.nav-menu li a:hover,
.nav-menu li.current-menu-item a {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.search-toggle,
.dark-mode-toggle,
.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  padding: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  transition: background 0.2s;
}

.search-toggle:hover,
.dark-mode-toggle:hover,
.hamburger:hover {
  background: var(--color-bg-alt);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.header-cta {
  background: var(--color-secondary);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s;
}

.header-cta:hover {
  background: var(--color-secondary-hover);
  color: #fff;
}

/* Search Overlay */
.search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 2000;
  align-items: flex-start;
  justify-content: center;
  padding-top: 120px;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

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

.search-overlay-inner {
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  width: 90%;
  max-width: 600px;
  box-shadow: var(--shadow-xl);
}

.search-overlay .search-input {
  width: 100%;
  height: 52px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  font-size: 16px;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.2s;
}

.search-overlay .search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height-mobile);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 999;
  padding: var(--space-xl);
  overflow-y: auto;
}

.mobile-nav.active {
  display: block;
}

.mobile-nav .nav-menu {
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-nav .nav-menu li a {
  font-size: 18px;
  padding: var(--space-md) 0;
  display: block;
  border-bottom: 1px solid var(--color-border);
}

/* ============================================
   5. HERO SECTION
   ============================================ */
.hero {
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #f0f9ff 0%, #faf5ff 100%);
  padding: var(--space-xl);
}

[data-theme="dark"] .hero {
  background: linear-gradient(135deg, #1e293b 0%, #1e1b4b 100%);
}

.hero-content {
  max-width: 700px;
}

.hero h1 {
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.hero p {
  font-size: 20px;
  color: var(--color-text-secondary);
  font-weight: 400;
  margin-bottom: var(--space-xl);
}

/* ============================================
   6. BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.2s;
  line-height: 1.4;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-secondary);
  color: #fff;
}

.btn-secondary:hover {
  background: var(--color-secondary-hover);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-bg);
}

.btn-white {
  background: #fff;
  color: var(--color-primary);
}

.btn-white:hover {
  background: #f1f5f9;
  color: var(--color-primary);
}

.btn:disabled {
  background: #d1d5db;
  color: #9ca3af;
  cursor: not-allowed;
}

/* ============================================
   7. SECTION TITLES
   ============================================ */
.section {
  padding: var(--space-3xl) 0;
}

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

.section-title {
  font-size: 28px;
  font-weight: 700;
  position: relative;
  padding-bottom: var(--space-sm);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}

/* ============================================
   8. CATEGORY PILLS
   ============================================ */
.category-pills {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding: var(--space-md) 0;
}

.category-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  background: var(--color-bg-alt);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  transition: all 0.2s;
  text-decoration: none;
}

.category-pill:hover {
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
}

.category-pill.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ============================================
   9. BLOG POST CARDS
   ============================================ */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.posts-grid.list-view {
  grid-template-columns: 1fr;
}

.post-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

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

.post-card .cat-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  margin-bottom: var(--space-sm);
}

.post-card-title {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--space-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-title a {
  color: var(--color-text);
  text-decoration: none;
}

.post-card-title a:hover {
  color: var(--color-primary);
}

.post-card-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 12px;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.post-card-meta img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

.meta-separator {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-muted);
}

/* List view card */
.list-view .post-card {
  display: flex;
  flex-direction: row;
}

.list-view .post-card-image {
  width: 240px;
  height: 180px;
  flex-shrink: 0;
}

/* Featured cards */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.featured-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 320px;
}

.featured-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
  color: #fff;
}

.featured-card-overlay .cat-badge {
  margin-bottom: var(--space-sm);
}

.featured-card-overlay h3 {
  font-size: 22px;
  color: #fff;
  margin-bottom: var(--space-xs);
}

.featured-card-overlay .post-card-meta {
  color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   10. PAGINATION
   ============================================ */
.pagination {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xl) 0;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all 0.2s;
}

.pagination a:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.pagination .current {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ============================================
   11. SIDEBAR
   ============================================ */
.content-sidebar-wrap {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-xl);
}

.sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
  align-self: start;
}

.widget {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.widget-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary);
}

/* Search Widget */
.search-form {
  position: relative;
}

.search-form input[type="search"] {
  width: 100%;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 12px 44px 12px 16px;
  font-size: 14px;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.2s;
}

.search-form input[type="search"]:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-form input[type="search"]::placeholder {
  color: var(--color-text-muted);
}

.search-form button {
  position: absolute;
  right: 4px;
  top: 4px;
  width: 36px;
  height: 36px;
  border: none;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

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

.popular-post-item img {
  width: 64px;
  height: 48px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.popular-post-item .pop-title {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.popular-post-item .pop-title a {
  color: var(--color-text);
}

.popular-post-item .pop-title a:hover {
  color: var(--color-primary);
}

.popular-post-item .pop-date {
  font-size: 12px;
  color: var(--color-text-muted);
}

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

.widget-categories li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.widget-categories li:last-child {
  border-bottom: none;
}

.widget-categories li a {
  color: var(--color-text);
  font-size: 14px;
}

.widget-categories li a:hover {
  color: var(--color-primary);
}

.widget-categories .count {
  font-size: 12px;
  color: var(--color-text-muted);
  background: var(--color-bg);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

/* ============================================
   12. NEWSLETTER / CTA
   ============================================ */
.newsletter-section {
  background: linear-gradient(135deg, var(--color-secondary), #6d28d9);
  padding: var(--space-3xl) var(--space-lg);
  text-align: center;
  color: #fff;
}

.newsletter-section h2 {
  color: #fff;
  font-size: 36px;
  margin-bottom: var(--space-sm);
}

.newsletter-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  margin-bottom: var(--space-xl);
}

.newsletter-form {
  display: flex;
  gap: var(--space-sm);
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input[type="email"] {
  flex: 1;
  height: 48px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-md);
  padding: 0 16px;
  font-size: 14px;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  outline: none;
}

.newsletter-form input[type="email"]::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.newsletter-form input[type="email"]:focus {
  border-color: #fff;
}

.newsletter-form button {
  white-space: nowrap;
}

.newsletter-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--space-md);
}

.newsletter-success {
  display: none;
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  margin-top: var(--space-md);
}

/* CTA Section (blue) */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), #1e40af);
  padding: var(--space-3xl) var(--space-lg);
  text-align: center;
}

.cta-section h2 {
  color: #fff;
  font-size: 36px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  margin-bottom: var(--space-xl);
}

/* ============================================
   13. FOOTER
   ============================================ */
.site-footer {
  background: var(--color-bg-dark);
  color: #f1f5f9;
  padding: var(--space-3xl) 0 var(--space-lg);
  border-top: 1px solid var(--color-border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand .site-logo-text {
  color: #fff;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 14px;
  margin: var(--space-md) 0;
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  text-decoration: none;
}

.footer-social a:hover {
  background: var(--color-primary);
  color: #fff;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--space-md);
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul li a {
  color: #94a3b8;
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-col ul li a:hover {
  color: #fff;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ============================================
   14. SINGLE POST
   ============================================ */
/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 14px;
  color: var(--color-text-muted);
  padding: var(--space-md) 0;
}

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

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb .separator {
  margin: 0 var(--space-xs);
}

/* Post Header */
.post-header {
  margin-bottom: var(--space-xl);
}

.post-header h1 {
  font-size: 42px;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 14px;
  color: var(--color-text-secondary);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.post-meta img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.post-featured-image {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
}

/* Post Content */
.post-content {
  max-width: 800px;
  line-height: 1.8;
  font-size: 16px;
}

.post-content p {
  margin-bottom: var(--space-lg);
}

.post-content h2 {
  font-size: 30px;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.post-content h3 {
  font-size: 24px;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.post-content a {
  text-decoration: underline;
}

.post-content a:hover {
  color: var(--color-primary-hover);
}

.post-content img {
  max-width: 100%;
  margin: var(--space-lg) 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* Blockquote */
.post-content blockquote {
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg-alt);
  padding: var(--space-md);
  font-style: italic;
  font-size: 16px;
  margin: var(--space-lg) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* Code */
.post-content code {
  font-family: var(--font-mono);
  font-size: 14px;
  background: var(--color-bg-alt);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.post-content pre {
  background: #1f2937;
  color: #f9fafb;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--space-lg) 0;
  font-size: 13px;
  line-height: 1.6;
}

.post-content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* Tables */
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  font-size: 14px;
}

.post-content th,
.post-content td {
  padding: 12px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.post-content th {
  background: var(--color-primary-bg);
  font-weight: 600;
}

.post-content tr:nth-child(even) {
  background: var(--color-bg-alt);
}

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

.toc-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--space-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.toc-list li {
  margin-bottom: var(--space-xs);
}

.toc-list li a {
  font-size: 14px;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 4px 0;
  display: block;
  border-left: 2px solid transparent;
  padding-left: var(--space-md);
  transition: all 0.2s;
}

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

.toc-list .toc-h3 {
  padding-left: var(--space-xl);
}

/* ============================================
   15. SHARE BUTTONS
   ============================================ */
.share-buttons {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-xl);
}

.share-buttons span {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.share-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  transition: opacity 0.2s, transform 0.2s;
}

.share-btn:hover {
  opacity: 0.85;
  transform: scale(1.1);
  color: #fff;
}

.share-btn.facebook {
  background: #1877f2;
}

.share-btn.x-twitter {
  background: #000;
}

.share-btn.linkedin {
  background: #0077b5;
}

.share-btn.whatsapp {
  background: #25d366;
}

.share-btn.copy-link {
  background: var(--color-text-secondary);
  cursor: pointer;
  border: none;
  font-size: 14px;
}

/* ============================================
   16. AUTHOR BIO
   ============================================ */
.author-bio {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}

.author-bio-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.author-bio-info h4 {
  font-size: 18px;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.author-bio-info .role {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.author-bio-info p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.author-bio-social {
  display: flex;
  gap: var(--space-sm);
}

.author-bio-social a {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-border);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  text-decoration: none;
  transition: all 0.2s;
}

.author-bio-social a:hover {
  background: var(--color-primary);
  color: #fff;
}

/* ============================================
   17. POST NAVIGATION
   ============================================ */
.post-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-xl);
}

.post-nav-link {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  text-decoration: none;
}

.post-nav-link .label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.post-nav-link .title {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
}

.post-nav-link:hover .title {
  color: var(--color-primary);
}

.post-nav-link.next {
  text-align: right;
}

/* ============================================
   18. RELATED POSTS
   ============================================ */
.related-posts {
  padding: var(--space-xl) 0;
}

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

/* ============================================
   19. COMMENTS
   ============================================ */
.comments-section {
  padding: var(--space-xl) 0;
}

.comments-section h3 {
  font-size: 24px;
  margin-bottom: var(--space-lg);
}

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

.comment-item {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.comment-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.comment-header img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.comment-author {
  font-weight: 600;
  font-size: 14px;
}

.comment-date {
  font-size: 12px;
  color: var(--color-text-muted);
}

.comment-body {
  font-size: 14px;
  line-height: 1.7;
}

.comment-reply-link {
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 500;
  margin-top: var(--space-sm);
  display: inline-block;
}

.children {
  margin-left: var(--space-xl);
}

/* Comment Form */
.comment-form {
  margin-top: var(--space-xl);
}

.comment-form label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.comment-form input,
.comment-form textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 14px;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  margin-bottom: var(--space-md);
  outline: none;
  transition: border-color 0.2s;
}

.comment-form input:focus,
.comment-form textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.comment-form textarea {
  min-height: 120px;
  resize: vertical;
}

.comment-form-fields {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-md);
}

/* ============================================
   20. AD UNIT (compact)
   ============================================ */
.ad-unit {
  text-align: center;
  padding: var(--space-sm) 0;
  margin: var(--space-md) 0;
  max-height: 110px;
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
}

.ad-unit .ad-label {
  font-size: 10px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2px;
}

/* ============================================
   21. NEWSLETTER POPUP
   ============================================ */
.newsletter-popup {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 3000;
  align-items: center;
  justify-content: center;
}

.newsletter-popup.active {
  display: flex;
}

.popup-inner {
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  max-width: 440px;
  width: 90%;
  text-align: center;
  position: relative;
}

.popup-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text-muted);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================
   22. AUTHOR PAGE
   ============================================ */
.author-header {
  text-align: center;
  padding: var(--space-2xl) 0;
}

.author-header img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--space-lg);
}

.author-header h1 {
  margin-bottom: var(--space-sm);
}

.author-header .post-count {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ============================================
   23. 404 PAGE
   ============================================ */
.page-404 {
  text-align: center;
  padding: var(--space-4xl) var(--space-lg);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-404 h1 {
  font-size: 96px;
  color: var(--color-primary);
  margin-bottom: 0;
}

.page-404 h2 {
  font-size: 28px;
  margin-bottom: var(--space-md);
}

.page-404 p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

/* ============================================
   24. VIEW TOGGLE
   ============================================ */
.view-toggle {
  display: flex;
  gap: var(--space-xs);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 2px;
}

.view-toggle button {
  padding: 8px 12px;
  border: none;
  background: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 14px;
  transition: all 0.2s;
}

.view-toggle button.active {
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

/* ============================================
   25. HOMEPAGE TWO-COLUMN LAYOUT
   ============================================ */
.homepage-two-col {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-xl);
  align-items: start;
}

.homepage-main .posts-grid {
  grid-template-columns: repeat(2, 1fr);
}

.homepage-sidebar .widget {
  margin-bottom: var(--space-lg);
}

/* Popular Tags */
.popular-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.popular-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}

.popular-tag:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Sidebar Snippets */
.sidebar-snippet {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-snippet:last-of-type {
  border-bottom: none;
}

.sidebar-snippet img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.snippet-placeholder {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.snippet-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.snippet-title:hover {
  color: var(--color-primary);
}

.snippet-date {
  font-size: 12px;
  color: var(--color-text-muted);
  display: block;
  margin-top: 2px;
}

.widget-more {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-primary);
  margin-top: var(--space-sm);
  text-decoration: none;
}

.widget-more:hover {
  text-decoration: underline;
}

/* Newsletter Sidebar Widget */
.newsletter-widget {
  background: linear-gradient(135deg, var(--color-primary), #1e40af) !important;
  color: #fff;
  border: none !important;
}

/* Utility */
.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

/* ============================================
   26. RESPONSIVE BREAKPOINTS
   ============================================ */

/* Tablet: 641px - 1024px */
@media (max-width: 1024px) {
  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 28px;
  }

  h3 {
    font-size: 24px;
  }

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

  .sidebar {
    display: none;
  }

  .homepage-two-col {
    grid-template-columns: 1fr;
  }

  .homepage-main .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .featured-card {
    height: 260px;
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .comment-form-fields {
    grid-template-columns: 1fr;
  }

  .section-header {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .pagination {
    flex-wrap: wrap;
    justify-content: center;
  }

  .search-overlay {
    padding-top: 80px;
  }

  .nav-menu {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}

/* Mobile: 0px - 640px */
@media (max-width: 640px) {
  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 24px;
  }

  h3 {
    font-size: 20px;
  }

  body {
    font-size: 14px;
  }

  .site-header {
    height: var(--header-height-mobile);
  }

  .site-logo-text {
    font-size: 16px;
  }

  .nav-menu {
    display: none;
  }

  .mobile-nav .nav-menu {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .header-actions {
    gap: var(--space-xs);
  }

  .header-cta {
    display: none;
  }

  .hero {
    height: auto;
    min-height: 320px;
    padding: var(--space-xl) var(--space-md);
  }

  .hero h1 {
    font-size: 24px;
  }

  .hero p {
    font-size: 15px;
  }

  .search-overlay {
    padding-top: 60px;
  }

  .posts-grid,
  .featured-grid,
  .related-posts-grid,
  .homepage-main .posts-grid {
    grid-template-columns: 1fr;
  }

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

  .list-view .post-card {
    flex-direction: column;
  }

  .featured-card {
    height: 220px;
  }

  .featured-card-overlay h3 {
    font-size: 16px;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .pagination {
    justify-content: center;
    flex-wrap: wrap;
  }

  .sidebar-snippet img,
  .snippet-placeholder {
    width: 48px;
    height: 48px;
  }

  .post-meta {
    font-size: 12px;
  }

  .popular-tag {
    font-size: 12px;
    padding: 3px 10px;
  }

  .list-view .post-card-image {
    width: 100%;
    height: 180px;
  }

  .post-header h1 {
    font-size: 28px;
  }

  .post-content {
    font-size: 15px;
  }

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

  .newsletter-form {
    flex-direction: column;
  }

  .post-navigation {
    grid-template-columns: 1fr;
  }

  .author-bio {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .share-buttons {
    flex-wrap: wrap;
  }

  .category-pills {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .category-pills::-webkit-scrollbar {
    display: none;
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .page-404 h1 {
    font-size: 64px;
  }
}

/* Ultra-wide: 1281px+ */
@media (min-width: 1281px) {
  .container {
    max-width: var(--container-ultra);
  }
}