/* Base Typography and Layout */
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: #fafafa;
  color: #1a1a1a;
  line-height: 1.6;
  font-size: 16px;
}

/* Header Styles */
header {
  padding: 2rem 1rem;
  background-color: #fafafa;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  gap: 2rem;
}

.header-text {
  flex: 1;
}

.title {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0;
  color: #1a1a1a;
  letter-spacing: -0.025em;
}

.subtitle {
  margin: 0.5rem 0 0;
  font-size: 1.125rem;
  color: #6b7280;
  font-weight: 400;
}

.avatar {
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #f3f4f6;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.divider {
  margin: 2rem auto;
  border: none;
  border-top: 1px solid #e5e5e5;
  height: 1px;
  max-width: 1200px;
}

/* Main Content */
.main-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1rem;
  min-height: 60vh;
}

/* Typography for Content */
.main-content h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin: 0 0 1.5rem 0;
  color: #1a1a1a;
  line-height: 1.2;
}

.main-content h2 {
  font-size: 1.875rem;
  font-weight: 600;
  margin: 2.5rem 0 1rem 0;
  color: #1a1a1a;
  line-height: 1.3;
}

.main-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem 0;
  color: #1a1a1a;
  line-height: 1.4;
}

.main-content h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem 0;
  color: #1a1a1a;
  line-height: 1.4;
}

.main-content p {
  margin: 0 0 1.25rem 0;
  color: #374151;
  line-height: 1.7;
}

.main-content ul, .main-content ol {
  margin: 1.25rem 0;
  padding-left: 1.5rem;
  color: #374151;
}

.main-content li {
  margin: 0.5rem 0;
  line-height: 1.6;
}

.main-content blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  border-left: 4px solid #3b82f6;
  background-color: #f8fafc;
  font-style: italic;
  color: #4b5563;
}

.main-content code {
  background-color: #f3f4f6;
  padding: 0.125rem 0.25rem;
  border-radius: 0.25rem;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 0.875em;
  color: #dc2626;
}

.main-content pre {
  background-color: #1f2937;
  color: #f9fafb;
  padding: 1.5rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.5;
}

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

.main-content a {
  color: #3b82f6;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-bottom-color 0.2s ease;
}

.main-content a:hover {
  border-bottom-color: #3b82f6;
}

/* Footer */
.footer {
  background-color: #fafafa;
  padding: 2rem 1rem;
  margin-top: 3rem;
}

.footer-text {
  text-align: center;
  margin: 0;
  color: #6b7280;
  font-size: 0.875rem;
}

.footer-text a {
  color: #3b82f6;
  text-decoration: none;
  font-weight: 500;
}

.footer-text a:hover {
  text-decoration: underline;
}

/* Focus Styles for Accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* Skip to main content link for screen readers */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: #3b82f6;
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 1000;
}

.skip-link:focus {
  top: 6px;
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
  header {
    padding: 1.5rem 1rem;
  }
  
  .header-container {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  
  .title {
    font-size: 2rem;
  }
  
  .subtitle {
    font-size: 1rem;
  }
  
  .avatar {
    width: 4rem;
    height: 4rem;
  }
  
  .main-content {
    padding: 2rem 1rem;
  }
  
  .main-content h1 {
    font-size: 1.875rem;
  }
  
  .main-content h2 {
    font-size: 1.5rem;
  }
  
  .main-content h3 {
    font-size: 1.25rem;
  }
  
  .footer {
    padding: 1.5rem 1rem;
  }
}

@media (max-width: 480px) {
  .title {
    font-size: 1.75rem;
  }
  
  .main-content {
    padding: 1.5rem 1rem;
  }
  
  .main-content h1 {
    font-size: 1.5rem;
  }
}

/* Print Styles */
@media print {
  body {
    background-color: white;
    color: black;
  }
  
  header, footer {
    display: none;
  }
  
  .main-content {
    max-width: none;
    padding: 0;
  }
}