/* Langaflow Blog - Main Stylesheet */

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

:root {
  --primary: #667eea;
  --primary-dark: #5568d3;
  --secondary: #764ba2;
  --text: #1a202c;
  --text-light: #4a5568;
  --bg: #ffffff;
  --bg-light: #f7fafc;
  --border: #e2e8f0;
}

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

/* Header */
header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  color: white;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.3s;
}

.nav-links a:hover {
  opacity: 0.8;
}

/* Main Content */
main {
  min-height: calc(100vh - 200px);
  padding: 3rem 0;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 0;
  background: white;
  margin-bottom: 3rem;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* Article Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.article-card {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: transform 0.3s, box-shadow 0.3s;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.article-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.article-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-category {
  display: inline-block;
  background: var(--bg-light);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.article-card h2 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--text);
  line-height: 1.3;
}

.article-excerpt {
  color: var(--text-light);
  margin-bottom: 1rem;
  flex: 1;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--text-light);
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.read-more {
  color: var(--primary);
  font-weight: 600;
}

/* Article Page */
.article-header {
  background: white;
  padding: 3rem 0;
  margin-bottom: 3rem;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.article-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.article-body {
  background: white;
  padding: 3rem;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  max-width: 800px;
  margin: 0 auto;
}

.article-body h2 {
  font-size: 2rem;
  margin: 2rem 0 1rem;
  color: var(--text);
}

.article-body h3 {
  font-size: 1.5rem;
  margin: 1.5rem 0 1rem;
  color: var(--text);
}

.article-body p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
  color: var(--text);
}

.article-body ul, .article-body ol {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

.article-body li {
  margin-bottom: 0.75rem;
  line-height: 1.8;
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--text-light);
}

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

/* Page Content */
.page-content {
  background: white;
  padding: 3rem;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  max-width: 900px;
  margin: 0 auto;
}

.page-content h1 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--text);
}

.page-content h2 {
  font-size: 1.75rem;
  margin: 2rem 0 1rem;
  color: var(--text);
}

.page-content p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.page-content ul {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

.page-content li {
  margin-bottom: 0.75rem;
}

/* Footer */
footer {
  background: var(--text);
  color: white;
  padding: 3rem 0 1rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  color: white;
}

.footer-section ul {
  list-style: none;
}

.footer-section a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.6);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .article-body, .page-content {
    padding: 1.5rem;
  }

  .nav-links {
    gap: 1rem;
  }
}