/* ==========================================================================
   OVELHAS BLOG - Estilo Sophos com Dark/Light Mode
   ========================================================================== */

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

/* ==========================================================================
   CSS VARIABLES - Light Mode (padrão) e Dark Mode
   ========================================================================== */

:root {
  /* Light Mode (padrão) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-hero: #f1f5f9;
  --bg-card: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --accent: #c46849;
  --accent-hover: #d4785a;
  --accent-muted: rgba(196, 104, 73, 0.1);
  --border: #e2e8f0;
  --border-light: rgba(226, 232, 240, 0.6);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1);

  /* Tipografia */
  --font-sans:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;

  /* Layout */
  --container-max: 1400px;
  --content-max: 860px;

  /* Espacamento */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Transicoes */
  --transition: 150ms ease;
  --transition-slow: 300ms ease;
}

/* Dark Mode */
body.dark-mode {
  --bg-primary: #1e1e1e;
  --bg-secondary: #252526;
  --bg-hero: #2d2d30;
  --bg-card: #2d2d30;
  --text-primary: #ffffff;
  --text-secondary: #d4d4d4;
  --text-muted: #909090;
  --accent: #c46849;
  --accent-hover: #d4785a;
  --accent-muted: rgba(196, 104, 73, 0.2);
  --border: #3e3e42;
  --border-light: rgba(62, 62, 66, 0.6);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   BASE STYLES
   ========================================================================== */

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition:
    background-color var(--transition-slow),
    color var(--transition-slow);
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* Links */
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

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

/* ==========================================================================
   HEADER - Estilo Sophos
   ========================================================================== */

.site-header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  padding: var(--space-4) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition:
    background-color var(--transition-slow),
    border-color var(--transition-slow);
}

body.dark-mode .site-header {
  background-color: rgba(30, 30, 30, 0.95);
}

body:not(.dark-mode) .site-header {
  background-color: rgba(255, 255, 255, 0.95);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  transition: color var(--transition);
}

.site-logo:hover {
  color: var(--accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-8);
}

.nav-menu a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--accent);
}

/* Theme Toggle Button */
.theme-toggle {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: var(--space-2) var(--space-4);
  border-radius: 9999px;
  cursor: pointer;
  transition: all var(--transition);
}

.theme-toggle:hover {
  background-color: var(--accent-muted);
  border-color: var(--accent);
  color: var(--accent);
}

/* Menu Toggle Mobile */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition);
}

/* ==========================================================================
   MAIN CONTENT
   ========================================================================== */

main {
  flex: 1;
}

/* ==========================================================================
   HERO SECTION - Estilo Sophos
   ========================================================================== */

.hero {
  background-color: var(--bg-hero);
  padding: var(--space-20) 0;
  margin-bottom: var(--space-16);
  text-align: center;
  transition: background-color var(--transition-slow);
}

.hero-content {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.hero h1 {
  font-family: var(--font-sans);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 36rem;
  margin: 0 auto;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-24) 0;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .hero p {
    font-size: 1.25rem;
  }
}

/* ==========================================================================
   PAGE HEADER
   ========================================================================== */

.page-header {
  background-color: var(--bg-hero);
  padding: var(--space-16) 0;
  margin-bottom: var(--space-12);
  transition: background-color var(--transition-slow);
}

.page-header-content {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.page-description {
  color: var(--text-muted);
  font-size: 1.0625rem;
}

/* ==========================================================================
   SECTION TITLES
   ========================================================================== */

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  letter-spacing: -0.01em;
}

/* ==========================================================================
   ARTICLES GRID - Estilo Sophos
   ========================================================================== */

.featured-articles {
  padding: 0 0 var(--space-16);
}

.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 640px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   ARTICLE CARDS - Estilo Sophos
   ========================================================================== */

.article-card {
  background-color: var(--bg-card);
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: all var(--transition-slow);
}

.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.article-card:hover .article-image img {
  transform: scale(1.05);
}

.article-image {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--bg-secondary);
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-content {
  padding: var(--space-6);
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.article-meta time,
.article-meta .author {
  display: inline-flex;
  align-items: center;
}

.article-meta .separator {
  color: var(--border);
}

.article-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.article-title a {
  color: var(--text-primary);
  transition: color var(--transition);
}

.article-title a:hover {
  color: var(--accent);
}

.article-summary {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
}

.read-more:hover {
  color: var(--accent-hover);
}

.read-more::after {
  content: '\2192';
  transition: transform var(--transition);
}

.read-more:hover::after {
  transform: translateX(4px);
}

/* ==========================================================================
   ARTICLES LIST
   ========================================================================== */

.articles-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.articles-list .article-card {
  display: flex;
  flex-direction: column;
}

@media (min-width: 640px) {
  .articles-list .article-card {
    flex-direction: row;
  }

  .articles-list .article-image {
    flex: 0 0 280px;
    aspect-ratio: auto;
    min-height: 180px;
  }

  .articles-list .article-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

/* ==========================================================================
   SINGLE ARTICLE - Estilo Sophos
   ========================================================================== */

.article-single {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-8) var(--space-4) var(--space-16);
}

/* Article Hero */
.article-hero {
  background-color: var(--bg-hero);
  padding: var(--space-12) 0;
  margin-bottom: var(--space-8);
  transition: background-color var(--transition-slow);
}

.article-hero-content {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.article-header {
  margin-bottom: var(--space-8);
}

.article-header h1 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--space-6);
  color: var(--text-primary);
}

@media (min-width: 768px) {
  .article-header h1 {
    font-size: 2.5rem;
  }
}

.article-header .article-meta {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.article-header .article-meta a {
  color: var(--text-muted);
}

.article-header .article-meta a:hover {
  color: var(--accent);
}

.article-header .article-meta .separator {
  color: var(--border);
}

/* Featured Image */
.article-featured-image {
  margin-bottom: var(--space-10);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.article-featured-image img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

/* Article Body - Prose */
.article-body {
  font-size: 1.125rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.article-body > *:first-child {
  margin-top: 0;
}

.article-body h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

.article-body h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-top: var(--space-10);
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.article-body h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: var(--space-8);
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.article-body p {
  margin-bottom: var(--space-6);
}

.article-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-body a:hover {
  color: var(--accent-hover);
}

.article-body strong {
  font-weight: 600;
  color: var(--text-primary);
}

.article-body em {
  font-style: italic;
}

.article-body blockquote {
  border-left: 4px solid var(--accent);
  padding-left: var(--space-6);
  margin: var(--space-8) 0;
  font-style: italic;
  color: var(--text-muted);
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body ul,
.article-body ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}

.article-body li {
  margin-bottom: var(--space-2);
}

.article-body li::marker {
  color: var(--accent);
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--accent-muted);
  padding: 0.125em 0.375em;
  border-radius: 0.25rem;
  color: var(--text-primary);
}

.article-body pre {
  background-color: #1e1e1e;
  color: #d4d4d4;
  padding: var(--space-6);
  border-radius: 0.5rem;
  overflow-x: auto;
  margin: var(--space-8) 0;
}

.article-body pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
  color: #d4d4d4;
}

.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
  margin: var(--space-6) 0;
}

.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-10) 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: 0.9375rem;
}

.article-body th,
.article-body td {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  text-align: left;
}

.article-body th {
  background-color: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-primary);
}

/* Article Footer */
.article-footer {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.tags-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: var(--space-2);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background-color: var(--accent-muted);
  color: var(--accent);
  padding: var(--space-1) var(--space-3);
  border-radius: 9999px;
  border: 1px solid transparent;
  transition: all var(--transition);
}

.tag:hover {
  background-color: var(--accent);
  color: #ffffff;
}

/* Article Navigation */
.article-navigation {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
}

@media (min-width: 640px) {
  .article-navigation {
    grid-template-columns: 1fr 1fr;
  }
}

.article-navigation a {
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  background-color: var(--bg-secondary);
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.article-navigation a:hover {
  border-color: var(--accent);
  background-color: var(--accent-muted);
}

.article-navigation .nav-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.article-navigation .nav-title {
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

.next-article {
  text-align: right;
}

@media (max-width: 639px) {
  .next-article {
    text-align: left;
  }
}

/* ==========================================================================
   PAGINATION
   ========================================================================== */

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-12);
  padding: var(--space-8) var(--space-4);
}

.pagination a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: var(--space-3) var(--space-6);
  background-color: var(--accent);
  color: #ffffff;
  border-radius: 0.375rem;
  transition: all var(--transition);
}

.pagination a:hover {
  background-color: var(--accent-hover);
  color: #ffffff;
}

.page-info {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ==========================================================================
   INFINITE SCROLL
   ========================================================================== */

.infinite-scroll-status {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-12) var(--space-4);
}

.infinite-scroll-status .loader {
  display: none;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.infinite-scroll-status .spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.infinite-scroll-status .end-message {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding: var(--space-4) var(--space-8);
  border: 1px dashed var(--border);
  border-radius: 0.375rem;
}

/* ==========================================================================
   VIEW ALL BUTTON
   ========================================================================== */

.view-all {
  text-align: center;
  margin-top: var(--space-12);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  background-color: var(--accent);
  color: #ffffff;
  border-radius: 0.375rem;
  transition: all var(--transition);
}

.btn:hover {
  background-color: var(--accent-hover);
  color: #ffffff;
}

.btn-secondary {
  background-color: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

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

/* ==========================================================================
   FOOTER - Estilo Sophos
   ========================================================================== */

.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: auto;
  transition:
    background-color var(--transition-slow),
    border-color var(--transition-slow);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

@media (min-width: 640px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-section h4 {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-section p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

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

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--space-8);
  text-align: center;
}

.footer-bottom p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   CATEGORIES & TAGS PAGES
   ========================================================================== */

.taxonomy-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.taxonomy-item {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background-color: var(--bg-card);
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-4);
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.taxonomy-item:hover {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.taxonomy-item .count {
  margin-left: var(--space-2);
  opacity: 0.7;
}

/* ==========================================================================
   RESPONSIVE - Mobile
   ========================================================================== */

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-right {
    gap: var(--space-4);
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    flex-direction: column;
    padding: var(--space-4);
    gap: var(--space-4);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }

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

  body.dark-mode .nav-menu {
    background-color: var(--bg-primary);
  }

  .hero h1 {
    font-size: 2rem;
  }

  .article-header h1 {
    font-size: 1.75rem;
  }

  .article-body {
    font-size: 1rem;
  }
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.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;
}

.text-center {
  text-align: center;
}

.mt-8 {
  margin-top: var(--space-8);
}

.mb-8 {
  margin-bottom: var(--space-8);
}

/* ==========================================================================
   YOUTUBE BLOG STYLE - Featured Hero + Grid
   ========================================================================== */

/* Featured Hero Section */
.featured-hero {
  padding: var(--space-8) 0 var(--space-12);
}

.featured-article {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  background-color: var(--bg-card);
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-slow);
}

@media (min-width: 768px) {
  .featured-article {
    grid-template-columns: 1.2fr 1fr;
  }
}

.featured-article:hover {
  box-shadow: var(--shadow-lg);
}

.featured-image {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--bg-secondary);
}

@media (min-width: 768px) {
  .featured-image {
    aspect-ratio: auto;
    min-height: 360px;
  }
}

.featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.featured-article:hover .featured-image img {
  transform: scale(1.03);
}

.featured-content {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (min-width: 768px) {
  .featured-content {
    padding: var(--space-10);
  }
}

.featured-category {
  margin-bottom: var(--space-4);
}

.category-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  background-color: var(--accent-muted);
  padding: var(--space-1) var(--space-3);
  border-radius: 0.25rem;
}

.featured-title {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .featured-title {
    font-size: 2.25rem;
  }
}

.featured-title a {
  color: var(--text-primary);
  transition: color var(--transition);
}

.featured-title a:hover {
  color: var(--accent);
}

.featured-summary {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .featured-summary {
    font-size: 1.0625rem;
  }
}

.featured-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

/* Articles Section - YouTube Style Grid */
.articles-section {
  padding: var(--space-8) 0 var(--space-16);
}

.articles-grid-yt {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 480px) {
  .articles-grid-yt {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .articles-grid-yt {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .articles-grid-yt {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Article Card - YouTube Style */
.article-card-yt {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition-slow);
}

.article-card-yt:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.article-image-yt {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--bg-secondary);
}

.article-image-yt img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card-yt:hover .article-image-yt img {
  transform: scale(1.05);
}

.article-content-yt {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-category {
  margin-bottom: var(--space-2);
}

.category-tag-sm {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.article-title-yt {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--space-2);
}

.article-title-yt a {
  color: var(--text-primary);
  transition: color var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-title-yt a:hover {
  color: var(--accent);
}

.article-summary-yt {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-3);
  flex: 1;
}

.read-more-yt {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: auto;
}

.read-more-yt:hover {
  color: var(--accent-hover);
}

.read-more-yt::after {
  content: '\2192';
  transition: transform var(--transition);
}

.read-more-yt:hover::after {
  transform: translateX(3px);
}

/* ==========================================================================
   ARTICLE CTA - Calculadora Gemátrica
   ========================================================================== */

.article-cta {
  margin: var(--space-8) 0;
}

.cta-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-6);
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
}

.cta-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.cta-icon {
  font-size: 2.5rem;
  color: var(--accent);
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-muted);
  border-radius: 12px;
  font-weight: 700;
  line-height: 1;
}

.cta-icon-sm {
  font-size: 1.5rem;
}

.cta-content h3 {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.cta-content p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--accent);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all var(--transition);
}

.cta-btn:hover {
  background: var(--accent-hover);
  transform: translateX(4px);
}

/* Responsive CTA */
@media (max-width: 640px) {
  .cta-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
}

/* ==========================================================================
   BREADCRUMB
   ========================================================================== */

.breadcrumb {
  max-width: var(--content-max);
  margin: 0 auto var(--space-4);
  padding: 0 var(--space-4);
  font-size: 0.8125rem;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: var(--space-1);
}

.breadcrumb-list li {
  display: flex;
  align-items: center;
  color: var(--text-muted);
}

.breadcrumb-list li:not(:last-child)::after {
  content: "›";
  margin-left: var(--space-2);
  color: var(--text-muted);
  opacity: 0.5;
}

.breadcrumb-list a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

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

.breadcrumb-list li[aria-current="page"] {
  color: var(--text-primary);
  font-weight: 500;
}

/* ==========================================================================
   READING TIME
   ========================================================================== */

.reading-time {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ==========================================================================
   TABLE OF CONTENTS
   ========================================================================== */

.article-toc {
  max-width: var(--content-max);
  margin: 0 auto var(--space-6);
  padding: 0 var(--space-4);
}

.article-toc details {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-4) var(--space-5);
}

.article-toc summary {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-primary);
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-light);
  margin-bottom: var(--space-3);
  list-style: none;
}

.article-toc summary::before {
  content: "▸ ";
  transition: transform var(--transition);
}

.article-toc details[open] > summary::before {
  content: "▾ ";
}

.article-toc nav#TableOfContents ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.article-toc nav#TableOfContents > ul > li {
  margin-bottom: var(--space-2);
}

.article-toc nav#TableOfContents ul ul {
  padding-left: var(--space-5);
  margin-top: var(--space-1);
}

.article-toc nav#TableOfContents a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  line-height: 1.7;
  transition: color var(--transition);
  display: inline-block;
}

.article-toc nav#TableOfContents a:hover {
  color: var(--accent);
}

/* ==========================================================================
   RELATED ARTICLES
   ========================================================================== */

.related-articles {
  max-width: var(--content-max);
  margin: var(--space-8) auto;
  padding: 0 var(--space-4);
}

.related-articles h2 {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  text-decoration: none;
  transition: all var(--transition);
  display: block;
}

.related-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.related-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.related-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.related-card:hover .related-image img {
  transform: scale(1.05);
}

.related-card h3 {
  font-size: 0.875rem;
  color: var(--text-primary);
  padding: var(--space-3) var(--space-4) var(--space-1);
  line-height: 1.4;
  font-weight: 600;
}

.related-card time {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 0 var(--space-4) var(--space-3);
}

@media (max-width: 640px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   PAGINATION
   ========================================================================== */

.pagination {
  max-width: var(--container-max);
  margin: var(--space-8) auto var(--space-6);
  padding: 0 var(--space-4);
  text-align: center;
}

.pagination-list {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

.pagination-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition);
}

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

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

.pagination-prev,
.pagination-next {
  font-weight: 600;
  padding: 0 var(--space-4);
}