/* ============================================
   DESIGN SYSTEM - Blog Marketing Digital
   ============================================ */

:root {
  /* Cores Principais */
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #ec4899;
  --secondary-dark: #db2777;

  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);

  /* Cores Neutras */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-tertiary: #94a3b8;
  --border: #e2e8f0;

  /* Dark Mode */
  --dark-bg-primary: #0f172a;
  --dark-bg-secondary: #1e293b;
  --dark-bg-tertiary: #334155;
  --dark-text-primary: #f1f5f9;
  --dark-text-secondary: #cbd5e1;
  --dark-border: #334155;

  /* Tipografia */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Inter', sans-serif;

  /* Espaçamento */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.3);

  /* Bordas */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transições */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   RESET & BASE
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* ============================================
   TIPOGRAFIA
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: 1.0625rem;
  line-height: 1.7;
}

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

/* ============================================
   LAYOUT
   ============================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
}

.container-narrow {
  max-width: 800px;
}

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

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--text-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(99, 102, 241, 0.05);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  background: #0b1120;
  /* Fundo escuro profundo */
  background: radial-gradient(circle at center, #1e293b 0%, #0b1120 100%);
  color: white;
  padding: 6rem 0 4rem;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--dark-text-secondary);
  margin-bottom: var(--spacing-xl);
  backdrop-filter: blur(4px);
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--primary);
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: white;
  margin-bottom: var(--spacing-md);
}

.hero-title-accent {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.hero p {
  color: var(--dark-text-secondary);
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  line-height: 1.6;
}

/* Search Bar */
.hero-search-wrapper {
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  position: relative;
  z-index: 100;
  /* Garante que o dropdown de busca sobreponha as categorias */
}

.hero-search-container {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1.5rem;
  padding: 0.5rem 1.5rem;
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
}

.hero-search-container:focus-within {
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

.search-icon {
  font-size: 1.25rem;
  margin-right: 1rem;
  opacity: 0.7;
}

.hero-search-input {
  background: transparent;
  border: none;
  color: white;
  width: 100%;
  font-size: 1rem;
  padding: 0.75rem 0;
  outline: none;
}

.hero-search-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

/* Search Results Dropdown */
.search-results-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  max-height: 400px;
  overflow-y: auto;
  z-index: 1000;
  display: none;
  /* Shown via JS */
  text-align: left;
}

.search-results-dropdown.active {
  display: block;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    transform: translateY(-10px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.search-result-item {
  display: block;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease;
  text-decoration: none !important;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background: var(--bg-secondary);
}

.search-result-item h4 {
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  font-size: 1rem;
  font-weight: 600;
}

.search-result-item p {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  margin: 0;
  display: -webkit-box;
  line-clamp: 2;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.search-no-results {
  padding: 2rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Category Pills */
.hero-filters {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
}

.filter-pill {
  padding: 0.625rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--dark-text-secondary);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
}

.filter-pill:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: white;
}

.filter-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

@media (max-width: 768px) {
  .hero {
    padding: 4rem 1rem 3rem;
  }

  .hero-filters {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
  }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  font-size: 1rem;
  text-align: center;
  font-family: var(--font-primary);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

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

.btn-secondary:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}

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

/* ============================================
   CARDS
   ============================================ */

.card {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid var(--border);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.card-content {
  padding: var(--spacing-md);
}

.card-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--gradient-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.card-excerpt {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  font-size: 0.9375rem;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

/* ============================================
   GRID LAYOUTS
   ============================================ */

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

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

.article-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.article-title {
  max-width: 850px;
  margin: 0 auto var(--spacing-md);
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  color: var(--text-tertiary);
  font-size: 0.9375rem;
}

.article-featured-image {
  max-width: 900px;
  margin: 0 auto var(--spacing-xl);
  padding: 0 var(--spacing-lg);
}

.article-featured-image img {
  width: 80%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: block;
  margin: 0 auto;
}


.article-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.125rem;
  line-height: 1.8;
  padding: 0 var(--spacing-xl);
}

.article-content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.article-content h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.article-content ul,
.article-content ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.article-content li {
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
}

.article-content img {
  margin: var(--spacing-lg) auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 80%;
  display: block;
}

/* Tabela Responsiva */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.comparison-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  background: white;
  text-align: left;
}

.comparison-table th,
.comparison-table td {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

.comparison-table tr:hover {
  background: var(--background-alt);
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  font-style: italic;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
}

.article-content table {
  width: 100%;
  margin: var(--spacing-xl) 0;
  border-collapse: collapse;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  font-size: 0.9375rem;
}

.article-content table thead {
  background: var(--gradient-primary);
  color: white;
}

.article-content table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--primary-dark);
}

.article-content table td {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.article-content table tbody tr:hover {
  background: var(--bg-secondary);
  transition: background var(--transition-fast);
}

.article-content table tbody tr:last-child td {
  border-bottom: none;
}

/* Responsive tables */
@media (max-width: 768px) {
  .article-content table {
    font-size: 0.875rem;
  }

  .article-content table th,
  .article-content table td {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}




/* ============================================
   CTA SECTION
   ============================================ */

.cta-wrapper {
  text-decoration: none;
  display: block;
  transition: transform var(--transition-base);
}

.cta-wrapper:hover {
  transform: translateY(-5px);
}

.cta-section {
  cursor: pointer;
  background: var(--gradient-secondary);
  color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  text-align: center;
  margin: var(--spacing-xl) 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }

  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

.cta-section h2 {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-lg);
  font-size: 1.125rem;
}

/* ============================================
   ARTICLE FINAL SECTIONS
   ============================================ */

.final-conclusion {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
  border-left: 6px solid var(--primary);
  box-shadow: var(--shadow-sm);
}

.final-conclusion h2 {
  color: var(--primary);
  margin-bottom: var(--spacing-md);
  font-size: 1.75rem;
}

.action-guide {
  background: var(--gradient-primary);
  color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  margin: var(--spacing-2xl) 0;
  box-shadow: var(--shadow-md);
}

.action-guide h2 {
  color: white;
  margin-bottom: var(--spacing-lg);
  font-size: 1.75rem;
  text-align: center;
}

.action-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.action-steps .step {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.95rem;
  line-height: 1.6;
}

.action-steps .step strong {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: 1.1rem;
  color: white;
}

.cta-box {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  margin: var(--spacing-xl) 0;
  border: 1px dashed var(--primary-light);
}

.cta-box h3 {
  margin-bottom: var(--spacing-sm);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: var(--dark-bg-primary);
  color: var(--dark-text-secondary);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
  color: var(--dark-text-primary);
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
}

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

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

.footer-links a {
  display: inline-block;
  padding: 4px 0;
  color: var(--dark-text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--dark-border);
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

/* ============================================
   FORM STYLES
   ============================================ */

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--text-primary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
  background: var(--bg-primary);
  color: var(--text-primary);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 150px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: var(--spacing-xl);
    transition: left var(--transition-base);
    box-shadow: var(--shadow-xl);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

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

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

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .hero {
    padding: var(--spacing-xl) 0;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

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

  .article-header {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .article-title {
    font-size: 2rem;
  }

  .final-conclusion {
    padding: var(--spacing-lg);
  }

  .action-guide {
    padding: var(--spacing-lg);
  }

  .action-steps {
    grid-template-columns: 1fr;
  }

  .article-content {
    padding: 0 var(--spacing-md);
    font-size: 1.0625rem;
    line-height: 1.6;
  }

  .article-featured-image img,
  .article-content img {
    width: 95%;
    max-width: 95%;
  }

  .table-responsive {
    margin: var(--spacing-md) -1rem;
    width: calc(100% + 2rem);
    border-radius: 0;
  }

  .comparison-table {
    font-size: 0.875rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .article-title {
    font-size: 1.75rem;
  }

  .article-meta {
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: center;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp var(--transition-slow) ease-out;
}

/* ============================================
   LOADING STATE
   ============================================ */

.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

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

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ============================================
   CPA & RECOMMENDATIONS
   ============================================ */

.btn-cpa {
  display: inline-block;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.75rem 2rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--text-primary);
  transition: all var(--transition-base);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.btn-cpa:hover {
  background-color: transparent;
  color: var(--text-primary);
  transform: translateY(-2px);
}

.recommendations-section {
  margin: var(--spacing-2xl) auto 0;
  padding: var(--spacing-2xl) var(--spacing-xl);
  border-top: 1px solid var(--border-color);
  max-width: 1000px;
}

.recommendations-title {
  margin-bottom: var(--spacing-lg);
}

.recommendations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.recommendation-card {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  text-decoration: none;
  display: block;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.recommendation-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.recommendation-type {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
  display: block;
}

.recommendation-title {
  font-size: 1.125rem;
  line-height: 1.4;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.external-resources {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-xl);
  background: var(--background-alt);
  border-radius: var(--radius-xl);
}

.external-resources h3 {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}