@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Roboto:wght@400;500;700&display=swap');

:root {
  /* Modern Academic Poland Color Palette */
  --color-primary: #D32F2F;           /* Deep Polish Red */
  --color-primary-hover: #B71C1C;   /* Crimson */
  --color-secondary: #1565C0;       /* Academic Blue */
  --color-secondary-hover: #0D47A1; /* Midnight Blue */
  --color-accent: #FFB300;          /* Warm Amber */
  --color-background: #FAFAFA;       /* Snow White */
  --color-surface: #ECEFF1;         /* Cool Grey */
  --color-text-primary: #212121;    /* Charcoal */
  --color-text-secondary: #616161;  /* Medium Grey */
  --color-success: #00897B;          /* Teal */
  --color-error: #E53935;            /* Coral Red */
  
  /* Layout */
  --w: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.15);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Category Gradients */
  --gradient-study: linear-gradient(135deg, #D32F2F, #FFCDD2);
  --gradient-living: linear-gradient(135deg, #1565C0, #BBDEFB);
  --gradient-cities: linear-gradient(135deg, #00897B, #B2DFDB);
  --gradient-culture: linear-gradient(135deg, #FFB300, #FFE082);
  --gradient-erasmus: linear-gradient(135deg, #6A1B9A, #E1BEE7);
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  margin: 0;
  background-color: var(--color-background);
  color: var(--color-text-primary);
  font-size: 16px;
}

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

/* Typography */
h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin: var(--spacing-lg) 0 var(--spacing-md);
  color: var(--color-text-primary);
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.3;
  margin: var(--spacing-lg) 0 var(--spacing-md);
  color: var(--color-text-primary);
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  margin: var(--spacing-md) 0 var(--spacing-sm);
  color: var(--color-text-primary);
}

p {
  margin: var(--spacing-sm) 0;
  color: var(--color-text-primary);
}

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

a:hover, a:focus {
  color: var(--color-secondary-hover);
  text-decoration: underline;
}

/* Category Header Gradients */
.category-header {
  padding: var(--spacing-xl) var(--spacing-lg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
  color: white;
  box-shadow: var(--shadow-md);
}

.category-header h1 {
  color: white;
  margin: 0;
}

.category-header p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.125rem;
  margin-top: var(--spacing-sm);
}

.category-study-in-poland .category-header {
  background: var(--gradient-study);
}

.category-living-in-poland .category-header {
  background: var(--gradient-living);
}

.category-polish-cities .category-header {
  background: var(--gradient-cities);
}

.category-culture-and-language-of-poland .category-header {
  background: var(--gradient-culture);
}

.category-erasmus .category-header {
  background: var(--gradient-erasmus);
}

.category-admission .category-header {
  background: linear-gradient(135deg, #1565C0, #BBDEFB);
}

.category-guides-and-hints .category-header {
  background: linear-gradient(135deg, #FFB300, #FFE082);
}

.category-working-in-poland .category-header {
  background: linear-gradient(135deg, #00897B, #B2DFDB);
}

/* Default gradient for other categories */
.category-header {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-hover));
}

/* Breadcrumbs */
.breadcrumbs {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.breadcrumbs li {
  display: inline;
}

.breadcrumbs li:not(:last-child)::after {
  content: '/';
  margin: 0 var(--spacing-xs);
  color: var(--color-text-secondary);
}

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

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

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

/* Cards */
.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

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

/* Post List */
.post-list {
  list-style: none;
  padding: 0;
  margin: var(--spacing-lg) 0;
}

.post-list li {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-surface);
}

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

.post-list a {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-secondary);
}

.post-list a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.post-list article {
  margin: 0;
}

.post-list h3 {
  margin: 0 0 var(--spacing-xs);
}

.post-list p {
  color: var(--color-text-secondary);
  margin: var(--spacing-xs) 0;
}

/* Breadcrumbs */
.breadcrumbs {
  margin: var(--spacing-md) 0 var(--spacing-lg);
}

.breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  align-items: center;
}

.breadcrumbs li {
  display: inline;
}

.breadcrumbs li:not(:last-child)::after {
  content: "›";
  margin: 0 var(--spacing-xs);
  color: var(--color-text-secondary);
}

.breadcrumbs a {
  color: var(--color-secondary);
  text-decoration: none;
}

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

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

/* Post Styles */
.post {
  max-width: 800px;
  margin: 0 auto;
}

.post h1 {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  font-size: 2.5rem;
  line-height: 1.2;
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-surface);
}

.post-date {
  display: block;
  color: var(--color-text-secondary);
  font-size: 1rem;
  margin-bottom: var(--spacing-md);
}

.post-categories {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

.post-category,
.post-subcategory {
  color: var(--color-secondary);
  font-weight: 500;
  text-decoration: none;
  font-size: 0.95rem;
}

.post-category:hover,
.post-subcategory:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.post-content {
  line-height: 1.8;
  font-size: 1.125rem;
}

.post-content h1 {
  font-size: 2.25rem;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.post-content h2 {
  font-size: 1.875rem;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-surface);
}

.post-content h3 {
  font-size: 1.5rem;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.post-content h4 {
  font-size: 1.25rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
}

.post-content p {
  margin-bottom: var(--spacing-md);
}

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

.post-content li {
  margin-bottom: var(--spacing-xs);
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
  box-shadow: var(--shadow-sm);
}

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

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

.post-content table tr:hover {
  background-color: var(--color-background);
}

/* City header rows in university tables */
.post-content table tr:has(td:first-child strong:only-child) {
  background-color: var(--color-surface);
  font-weight: 600;
}

.post-content table tr:has(td:first-child strong:only-child) td {
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
}

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

.post-content code {
  background-color: var(--color-surface);
  padding: 0.2em 0.4em;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  font-family: 'Courier New', monospace;
}

.post-content pre {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
}

.post-content pre code {
  background-color: transparent;
  padding: 0;
}

.post-content a {
  color: var(--color-secondary);
  text-decoration: underline;
}

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

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

/* Mobile Styles for Posts */
@media (max-width: 768px) {
  .post-header h1 {
    font-size: 2rem;
  }

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

  .post-content h1 {
    font-size: 1.75rem;
  }

  .post-content h2 {
    font-size: 1.5rem;
  }

  .post-content h3 {
    font-size: 1.25rem;
  }

  .post-content table {
    font-size: 0.9rem;
  }

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

.post-meta {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

.post-meta time,
.post-meta .post-date,
.post-meta .post-author {
  display: inline-flex;
  align-items: center;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0;
  padding: 0;
  font-size: inherit;
  height: auto;
}

.post-author a {
  color: var(--color-secondary);
  text-decoration: none;
  font-weight: 500;
  line-height: inherit;
  display: inline;
}

.post-author a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Author Styles */
.authors-page {
  max-width: 1000px;
  margin: 0 auto;
}

.authors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
}

.author-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.author-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  background-color: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  border-radius: 50%;
}

.author-info h2 {
  margin: 0 0 var(--spacing-sm);
  font-size: 1.5rem;
}

.author-info h2 a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.author-info h2 a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.author-bio {
  color: var(--color-text-secondary);
  margin: var(--spacing-sm) 0;
  line-height: 1.6;
}

.author-stats {
  margin-top: var(--spacing-sm);
  font-size: 0.9rem;
}

.author-stats a {
  color: var(--color-secondary);
  text-decoration: none;
}

.author-stats a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.author-page {
  max-width: 800px;
  margin: 0 auto;
}

.author-profile {
  display: flex;
  gap: var(--spacing-xl);
  align-items: flex-start;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 2px solid var(--color-surface);
}

.author-avatar-large {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  overflow: hidden;
  background-color: var(--color-surface);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.author-avatar-large img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-avatar-placeholder-large {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  border-radius: 50%;
}

.author-details h1 {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

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

.author-contact a {
  color: var(--color-secondary);
  text-decoration: none;
}

.author-contact a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Mobile Styles for Authors */
@media (max-width: 768px) {
  .authors-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

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

  .author-avatar-large {
    width: 120px;
    height: 120px;
  }
}

.meta {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-surface);
}

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

.post-category {
  font-size: 0.9rem;
}

.post-category a {
  color: var(--color-secondary);
  font-weight: 500;
}

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

.lede {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: white;
  text-decoration: none;
}

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

.btn-secondary:hover {
  background-color: var(--color-secondary-hover);
  color: white;
  text-decoration: none;
}

/* Navigation Styles */
.main-nav {
  background: white;
  border-bottom: 2px solid var(--color-surface);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
  font-weight: 500;
}

.nav-link:hover {
  background-color: var(--color-surface);
  color: var(--color-secondary);
  text-decoration: none;
}

.nav-item.has-dropdown > .nav-link {
  padding-right: 2.5rem;
}

.dropdown-arrow {
  position: absolute;
  right: var(--spacing-md);
  font-size: 0.7rem;
  transition: transform 0.2s;
  color: var(--color-text-secondary);
}

.nav-item.has-dropdown:hover > .nav-link .dropdown-arrow {
  transform: rotate(180deg);
  color: var(--color-secondary);
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: white;
  border: 1px solid var(--color-surface);
  border-radius: var(--radius-md);
  min-width: 220px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  list-style: none;
  margin: 0;
  padding: var(--spacing-xs) 0;
}

.nav-item.has-dropdown:hover > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  border-bottom: 1px solid var(--color-surface);
}

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

.dropdown-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all 0.2s ease;
}

.dropdown-link:hover {
  background-color: var(--color-surface);
  color: var(--color-secondary);
  text-decoration: none;
}

/* Header */
header {
  margin-bottom: var(--spacing-xl);
}

header h1 {
  margin-top: 0;
}

/* Mobile Menu Toggle Button */
.menu-toggle {
  display: none;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-primary);
  min-height: 44px;
  min-width: 44px;
  -webkit-tap-highlight-color: transparent;
}

.menu-toggle-icon {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 1.5rem;
  height: 1.5rem;
  position: relative;
}

.menu-toggle-icon span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.menu-toggle-text {
  display: none;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon span:nth-child(1) {
  transform: rotate(45deg) translate(0.4rem, 0.4rem);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon span:nth-child(3) {
  transform: rotate(-45deg) translate(0.4rem, -0.4rem);
}

/* Nav Overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-overlay[aria-hidden="false"] {
  display: block;
  opacity: 1;
}

/* Lock scroll when menu is open */
body.menu-open {
  overflow: hidden;
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .menu-toggle-icon span,
  .nav-overlay,
  .nav-list {
    transition: none;
  }
}

/* Footer */
footer {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-xl) 0;
  background-color: var(--color-surface);
  border-top: 2px solid var(--color-surface);
}

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

.footer-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-nav li {
  margin: 0;
}

.footer-nav a {
  color: var(--color-secondary);
  text-decoration: none;
  font-weight: 500;
}

.footer-nav a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

footer p {
  margin: 0;
  color: var(--color-text-secondary);
  text-align: center;
}

/* Sections */
section {
  margin: var(--spacing-xl) 0;
}

section h2 {
  margin-top: 0;
}

/* Subcategories */
.subcategories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.subcategory-card {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

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

.subcategory-card a {
  color: var(--color-secondary);
  font-weight: 500;
}

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

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

.subcategory-links {
  list-style: none;
  padding: 0;
  margin: var(--spacing-sm) 0 0;
}

.subcategory-links li {
  margin: var(--spacing-xs) 0;
}

.subcategory-links a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.subcategory-links a:hover {
  color: var(--color-secondary);
}

/* Category Index Page - Tree View */
.category-index {
  max-width: 900px;
  margin: 0 auto;
}

.categories-tree {
  display: grid;
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.category-tree-item {
  background: white;
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease;
}

.category-tree-item:hover {
  box-shadow: var(--shadow-md);
}

.category-tree-main {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.category-tree-main h2 {
  margin: 0;
  font-size: 1.5rem;
}

.category-tree-main h2 a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.category-tree-main h2 a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.category-count {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  white-space: nowrap;
}

.category-tree-children {
  list-style: none;
  padding: 0;
  margin: var(--spacing-md) 0 0;
  padding-left: var(--spacing-lg);
  border-left: 2px solid var(--color-surface);
}

.category-tree-child {
  margin: var(--spacing-xs) 0;
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
}

.category-tree-child a {
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.category-tree-child a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.category-tree-child .category-count {
  font-size: 0.85rem;
}

/* Homepage Hero */
.homepage .hero {
  text-align: center;
  padding: var(--spacing-3xl) 0;
  margin-bottom: var(--spacing-xl);
  position: relative;
  background-image: url('/assets/images/students.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 500px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.homepage .hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.85);
  z-index: 0;
}

.homepage .hero h1,
.homepage .hero .lede {
  position: relative;
  z-index: 1;
}

.homepage .hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.homepage .hero .lede {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Quick Links Section */
.quick-links-section {
  margin: var(--spacing-xl) 0;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.quick-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}

.quick-link:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-secondary);
  text-decoration: none;
}

.quick-link-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.quick-link-text {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.quick-link-text strong {
  display: block;
  color: var(--color-text-primary);
  font-size: 1.1rem;
  font-weight: 600;
}

.quick-link-text span {
  display: block;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

/* Featured Articles Section */
.featured-articles-section {
  margin: var(--spacing-xl) 0;
}

.featured-articles-section h2 {
  margin-bottom: var(--spacing-lg);
}

.featured-articles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.featured-article {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.2s ease;
  border-left: 4px solid var(--color-secondary);
}

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

.featured-article h3 {
  margin: 0 0 var(--spacing-md);
  font-size: 1.5rem;
}

.featured-article h3 a {
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.featured-article h3 a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.featured-article p {
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-md);
  line-height: 1.6;
}

.featured-link {
  display: inline-block;
  color: var(--color-secondary);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
}

.featured-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Articles Box */
.articles-box {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  margin: var(--spacing-lg) 0;
}

.articles-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--spacing-md);
}

.article-item {
  margin: 0;
}

.article-card {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-surface);
  transition: all 0.2s ease;
  background: var(--color-background);
}

.article-card:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.article-title {
  margin: 0 0 var(--spacing-xs);
  font-size: 1.25rem;
  font-weight: 600;
}

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

.article-title a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.article-description {
  color: var(--color-text-secondary);
  margin: var(--spacing-xs) 0 var(--spacing-sm);
  line-height: 1.6;
}

.article-meta {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.9rem;
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-surface);
}

.article-date,
.article-category,
.article-author {
  color: var(--color-text-secondary);
  font-size: inherit;
}

.article-category a,
.article-author a {
  color: var(--color-secondary);
  font-weight: 500;
  text-decoration: none;
  font-size: inherit;
}

.article-category a:hover,
.article-author a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

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

/* Page Content */
.page-content {
  max-width: 800px;
  margin: 0 auto;
}

.page-content section {
  margin: var(--spacing-xl) 0;
}

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

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

/* Contact Page */
.contact-info {
  display: grid;
  gap: var(--spacing-xl);
  margin: var(--spacing-lg) 0;
}

.contact-item {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.contact-item h3 {
  margin-top: 0;
  color: var(--color-secondary);
}

.contact-item ul {
  margin-top: var(--spacing-sm);
}

/* Mobile Styles */
@media (max-width: 768px) {
  .container {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

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

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

  /* Mobile Navigation */
  .main-nav {
    position: relative;
  }

  .menu-toggle {
    display: flex;
    position: relative;
    z-index: 1001;
  }

  .menu-toggle-text {
    display: inline;
  }

  .nav-list {
    position: fixed;
    top: 0;
    left: 0;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: white;
    flex-direction: column;
    align-items: stretch;
    padding: var(--spacing-md) 0;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .nav-list:not([hidden]) {
    transform: translateX(0);
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--color-surface);
  }

  .nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    width: 100%;
    font-size: 0.9rem;
  }

  .nav-item.has-dropdown > .nav-link {
    padding-right: var(--spacing-md);
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-top: 1px solid var(--color-surface);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    border-radius: 0;
    min-width: auto;
    margin: 0;
  }

  .nav-item.has-dropdown.menu-open > .dropdown-menu {
    max-height: 500px;
  }

  .dropdown-link {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.85rem;
  }

  .dropdown-arrow {
    right: var(--spacing-md);
    font-size: 0.6rem;
  }

  .nav-item.has-dropdown.menu-open > .nav-link .dropdown-arrow {
    transform: rotate(180deg);
  }

  /* Category Index Mobile */
  .category-tree-main {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }

  .category-tree-main h2 {
    font-size: 1.25rem;
  }

  .category-tree-children {
    padding-left: var(--spacing-md);
  }

  /* Quick Links Mobile */
  .quick-links {
    grid-template-columns: 1fr;
  }

  .quick-link {
    padding: var(--spacing-md);
  }

  .quick-link-icon {
    font-size: 1.5rem;
  }

  /* Featured Articles Mobile */
  .featured-articles {
    grid-template-columns: 1fr;
  }

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

  .featured-article h3 {
    font-size: 1.25rem;
  }

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

  .articles-box {
    padding: var(--spacing-md);
  }

  .article-card {
    padding: var(--spacing-sm);
  }

  .article-title {
    font-size: 1.125rem;
  }

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