/* =====================================================
   MODERN BLOG STYLES - Advanced CSS Architecture
   ===================================================== */

/* CSS Variables for Design System */
:root {
  /* Color Palette - Modern Dark/Light Theme */
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --secondary-color: #7c3aed;
  --secondary-hover: #6d28d9;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;

  /* Neutral Colors */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --border-color: #e5e7eb;
  --shadow-color: rgba(0, 0, 0, 0.1);

  /* Typography Scale */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;

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

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

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Dark Theme Variables */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --border-color: #374151;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --primary-light: #1e3a8a;
  }
}

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

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 1rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.875rem); }
h4 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin: 0 0 1rem;
}

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

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

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

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

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

/* Main Content Area */
main {
  flex: 1;
  padding: var(--space-xl) 0;
}

/* =====================================================
   HEADER STYLES
   ===================================================== */

.site-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.9);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(17, 24, 39, 0.9);
  }
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: var(--space-lg);
  flex-wrap: wrap;
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  white-space: nowrap;
  transition: transform var(--transition-fast);
}

.logo:hover {
  color: var(--text-primary);
  transform: translateY(-1px);
}

/* Navigation */
.top-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex: 1;
  justify-content: flex-end;
}

@media (max-width: 767px) {
  .site-header .container {
    flex-direction: column;
    gap: var(--space-md);
  }

  .top-nav {
    width: 100%;
    justify-content: center;
  }
}

/* =====================================================
   SEARCH COMPONENT
   ===================================================== */

.blog-search {
  position: relative;
  flex: 1;
  max-width: 400px;
}

.blog-search input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  color: var(--text-primary);
  transition: all var(--transition-base);
  outline: none;
}

.blog-search input:focus {
  border-color: var(--primary-color);
  background: var(--bg-primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.blog-search input::placeholder {
  color: var(--text-muted);
}

/* Search Suggestions Dropdown */
.blog-suggest {
  position: absolute;
  top: calc(100% + var(--space-xs));
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  display: none;
  max-height: 400px;
  overflow-y: auto;
  z-index: var(--z-dropdown);
}

.search-barrier {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: -1;
}

.blog-suggest ul {
  list-style: none;
  padding: var(--space-xs);
  margin: 0;
}

.blog-suggest li {
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.blog-suggest li:hover {
  background: var(--bg-secondary);
}

.blog-suggest li a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-primary);
  text-decoration: none;
}

.blog-suggest .badge {
  font-size: 0.75rem;
  padding: 0.125rem 0.5rem;
  background: var(--primary-light);
  color: var(--primary-color);
  border-radius: var(--radius-full);
  font-weight: 500;
}

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

.hero {
  text-align: center;
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-2xl);
}

.hero h1 {
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* =====================================================
   CATEGORY STYLES
   ===================================================== */

.category-tree h2 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.cat-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.cat-list li {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  border: 1px solid var(--border-color);
}

.cat-list li:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.cat-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  color: var(--text-primary);
  text-decoration: none;
  gap: var(--space-sm);
}

.cat-list .count {
  background: var(--primary-light);
  color: var(--primary-color);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
}

/* Category Header */
.category-header {
  text-align: center;
  padding: var(--space-2xl) 0;
  margin-bottom: var(--space-2xl);
}

.category-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* =====================================================
   POST/ARTICLE STYLES
   ===================================================== */

.latest-posts {
  margin: var(--space-2xl) 0;
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-list li {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  transition: all var(--transition-base);
  border: 1px solid var(--border-color);
}

.post-list li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.post-list a {
  display: block;
  padding: var(--space-lg);
  color: var(--text-primary);
  text-decoration: none;
}

.post-list strong {
  display: block;
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
  line-height: 1.4;
}

.post-list .date {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.post-list .snippet {
  margin-top: var(--space-sm);
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.5;
}

/* Single Article */
.post {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

@media (max-width: 767px) {
  .post {
    padding: var(--space-lg);
  }
}

.post h1 {
  margin-bottom: var(--space-lg);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

/* Article Content */
.post-content {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--text-primary);
}

.post-content h2,
.post-content h3,
.post-content h4 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-lg);
}

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

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

.post-content li {
  margin-bottom: var(--space-sm);
}

.post-content blockquote {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  border-left: 4px solid var(--primary-color);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
}

.post-content pre {
  background: var(--bg-tertiary);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.5;
}

.post-content code {
  background: var(--bg-tertiary);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.875em;
}

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

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-xl) 0;
  overflow-x: auto;
  display: block;
}

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

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

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
}

/* Post Footer */
.post-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

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

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

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

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

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

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

.pagination .active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.pagination .prev-next {
  font-size: 1.25rem;
}

.pagination .disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination .ellipsis {
  border: none;
  background: none;
  cursor: default;
}

/* =====================================================
   BREADCRUMBS
   ===================================================== */

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.breadcrumbs a {
  color: var(--primary-color);
  transition: color var(--transition-fast);
}

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

.breadcrumbs span {
  color: var(--text-muted);
}

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

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

.site-footer .container {
  text-align: center;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--primary-color);
  transition: color var(--transition-fast);
}

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

/* =====================================================
   UTILITY STYLES
   ===================================================== */

.no-content {
  text-align: center;
  padding: var(--space-3xl);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
}

.no-content h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

/* =====================================================
   ERROR PAGES
   ===================================================== */

.error-404 {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.error-404 h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-lg);
}

.error-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
}

.suggestions {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.suggestions h2 {
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.popular-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-md);
}

.category-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  text-decoration: none;
  transition: all var(--transition-base);
}

.category-link:hover {
  background: var(--primary-light);
  color: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateY(-1px);
}

/* =====================================================
   COOKIE CONSENT BANNER
   ===================================================== */

.cookie-consent-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-modal);
  padding: var(--space-lg);
  display: none;
}

.cookie-consent-text {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.cookie-consent-text p {
  margin: 0;
  flex: 1;
  color: var(--text-primary);
}

.cookie-accept-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.cookie-accept-btn:hover {
  background: var(--primary-hover);
}

/* =====================================================
   RESPONSIVE DESIGN ENHANCEMENTS
   ===================================================== */

/* Small devices (landscape phones, 576px and up) */
@media (max-width: 575px) {
  .container {
    padding: 0 var(--space-sm);
  }

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

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

  .pagination {
    gap: 2px;
  }

  .pagination a,
  .pagination span {
    min-width: 36px;
    height: 36px;
    font-size: 0.8125rem;
  }

  .btn-primary,
  .btn-secondary {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.875rem;
  }

  .error-actions {
    flex-direction: column;
    align-items: center;
  }

  .cookie-consent-text {
    flex-direction: column;
    text-align: center;
  }
}

/* Extra small devices (portrait phones, less than 576px) */
@media (max-width: 479px) {
  .site-header .container {
    padding-top: var(--space-xs);
    padding-bottom: var(--space-xs);
  }

  .logo {
    font-size: 1.125rem;
  }

  .blog-search {
    max-width: none;
  }

  .post {
    padding: var(--space-md);
  }

  .post-content {
    font-size: 1rem;
  }

  .popular-categories {
    grid-template-columns: 1fr;
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .container {
    max-width: 1400px;
  }

  .hero {
    padding: var(--space-3xl) 0;
  }

  .cat-list {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
  }

  .post {
    padding: var(--space-3xl);
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .container {
    max-width: 1600px;
  }
}

/* =====================================================
   ACCESSIBILITY & MOTION PREFERENCES
   ===================================================== */

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* Focus styles for better accessibility */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000000;
    --text-secondary: #000000;
    --bg-secondary: #ffffff;
  }

  @media (prefers-color-scheme: dark) {
    :root {
      --border-color: #ffffff;
      --text-secondary: #ffffff;
      --bg-secondary: #000000;
    }
  }
}

/* =====================================================
   PRINT STYLES
   ===================================================== */

@media print {
  .site-header,
  .site-footer,
  .cookie-consent-banner,
  .pagination,
  .btn-primary,
  .btn-secondary,
  .blog-search {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }

  .container {
    max-width: none;
    padding: 0;
  }

  .post {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  a {
    color: black;
    text-decoration: underline;
  }
}

/* =====================================================
   PERFORMANCE OPTIMIZATIONS
   ===================================================== */

/* GPU acceleration for smooth animations */
.logo,
.cat-list li,
.post-list li,
.btn-primary,
.btn-secondary,
.category-link {
  will-change: transform;
}

@media (hover: hover) {
  .logo:hover,
  .cat-list li:hover,
  .post-list li:hover,
  .btn-primary:hover,
  .btn-secondary:hover,
  .category-link:hover {
    will-change: transform;
  }
}

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

/* Apply fade-in animation to main content */
main > * {
  animation: fadeInUp 0.6s ease-out;
}

/* Stagger animation for lists */
.cat-list li:nth-child(1) { animation-delay: 0.1s; }
.cat-list li:nth-child(2) { animation-delay: 0.2s; }
.cat-list li:nth-child(3) { animation-delay: 0.3s; }
.cat-list li:nth-child(4) { animation-delay: 0.4s; }
.cat-list li:nth-child(5) { animation-delay: 0.5s; }

.post-list li:nth-child(1) { animation-delay: 0.1s; }
.post-list li:nth-child(2) { animation-delay: 0.2s; }
.post-list li:nth-child(3) { animation-delay: 0.3s; }
.post-list li:nth-child(4) { animation-delay: 0.4s; }
.post-list li:nth-child(5) { animation-delay: 0.5s; }

/* =====================================================
   ADVANCED CSS FEATURES
   ===================================================== */

/* Container queries for responsive components */
@container (max-width: 600px) {
  .cat-list {
    grid-template-columns: 1fr;
  }
}

/* Modern viewport units for better mobile support */
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
}

/* Advanced selectors for better performance */
.cat-list li:not(:hover),
.post-list li:not(:hover) {
  transform: none;
}

/* Modern CSS Grid with subgrid support */
@supports (grid-template-rows: subgrid) {
  .cat-list {
    grid-template-rows: subgrid;
  }
}