/* Enhanced styles for MERN Stack Guide */
:root {
  --primary-color: #3b82f6;
  --secondary-color: #1e40af;
  --text-color: #1f2937;
  --light-bg: #f9fafb;
  --border-color: #e5e7eb;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--light-bg);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo-link {
  color: var(--primary-color);
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
}

nav ul {
  display: flex;
  list-style: none;
}

nav ul li {
  margin-left: 1.5rem;
}

nav a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

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

nav a.active {
  color: var(--primary-color);
}

nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
}

.hero {
  background-color: var(--primary-color);
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-header {
  background-color: var(--primary-color);
  color: white;
  padding: 3rem 0;
  text-align: center;
}

.page-header h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.page-header p {
  font-size: 1.25rem;
  opacity: 0.9;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-block;
  background-color: white;
  color: var(--primary-color);
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn:hover {
  background-color: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.features, .content-section {
  padding: 4rem 0;
}

.features h2, .content-section h2 {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2rem;
}

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

.feature {
  background-color: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.feature h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.stack-section {
  padding: 4rem 0;
  background-color: white;
}

.stack-section h2 {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2rem;
}

.tech-section {
  margin-bottom: 2rem;
  padding: 2rem;
  border-radius: 8px;
  background-color: var(--light-bg);
}

.tech-section h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.tech-section p {
  margin-bottom: 1rem;
}

.tech-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
}

.tech-link:hover {
  text-decoration: underline;
}

.cta-section {
  background-color: var(--primary-color);
  color: white;
  padding: 4rem 0;
  text-align: center;
  margin: 2rem 0;
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cta-section p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

footer {
  background-color: white;
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
}

/* Dictionary specific styles */
.dictionary-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.search-box {
  flex: 1;
  min-width: 250px;
}

.search-box input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
}

.category-filter {
  width: 200px;
}

.category-filter select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  background-color: white;
}

.dictionary-section {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.dictionary-section h2 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  text-align: left;
}

.dictionary-entry {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.dictionary-entry h3 {
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.example {
  margin-top: 1rem;
  background-color: var(--light-bg);
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
}

.example pre {
  margin: 0;
  font-family: 'Courier New', Courier, monospace;
}

.example code {
  font-size: 0.9rem;
}

/* Learning path styles */
.learning-path {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.learning-path h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.path-list {
  padding-left: 1.5rem;
}

.path-list li {
  margin-bottom: 0.5rem;
}

/* Resources page styles */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.resource-card {
  background-color: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.resource-card h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.resource-card p {
  margin-bottom: 1rem;
}

.resource-link {
  display: inline-block;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

.resource-link:hover {
  text-decoration: underline;
}

/* Responsive styles */
@media (max-width: 768px) {
  header .container {
    flex-direction: column;
  }
  
  nav ul {
    margin-top: 1rem;
    justify-content: center;
  }
  
  nav ul li:first-child {
    margin-left: 0;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    text-align: center;
    margin-bottom: 0.5rem;
  }
  
  .dictionary-controls {
    flex-direction: column;
  }
  
  .search-box, .category-filter {
    width: 100%;
  }
}