:root { 
  color-scheme: light dark; 
  --tlal-purple: #a855f7;
  --tlal-purple-hover: #9333ea;
  --tlal-purple-light: #c084fc;
  --tlal-gray-50: #f9fafb;
  --tlal-gray-100: #f3f4f6;
  --tlal-gray-200: #e5e7eb;
  --tlal-gray-300: #d1d5db;
  --tlal-gray-400: #9ca3af;
  --tlal-gray-500: #6b7280;
  --tlal-gray-600: #4b5563;
  --tlal-gray-700: #374151;
  --tlal-gray-800: #1f2937;
  --tlal-gray-900: #111827;
}

html, body { margin: 0; }
body { 
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji"; 
  line-height: 1.6; 
  color: var(--tlal-gray-900);
  background-color: white;
}

body.dark {
  color: var(--tlal-gray-100);
  background-color: var(--tlal-gray-900);
}

.container { max-width: 960px; margin: 0 auto; padding: 1.5rem; }

/* Grid Layout */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

@media (min-width: 768px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

/* Card Component */
.card {
  display: block;
  padding: 1.5rem;
  background-color: white;
  border: 1px solid var(--tlal-gray-200);
  border-radius: 0.75rem;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease-in-out;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  border-color: var(--tlal-purple);
}

.card h2 {
  margin: 0 0 0.75rem 0;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--tlal-gray-900);
}

.card p {
  margin: 0 0 1rem 0;
  color: var(--tlal-gray-600);
  line-height: 1.5;
}

.card .tag {
  margin: 0;
  font-size: 0.875rem;
  color: var(--tlal-gray-500);
}

body.dark .card {
  background-color: var(--tlal-gray-800);
  border-color: var(--tlal-gray-700);
}

body.dark .card:hover {
  border-color: var(--tlal-purple-light);
}

body.dark .card h2 {
  color: var(--tlal-gray-100);
}

body.dark .card p {
  color: var(--tlal-gray-300);
}

body.dark .card .tag {
  color: var(--tlal-gray-400);
}

/* Tag Component */
.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--tlal-gray-100);
  color: var(--tlal-gray-700);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

body.dark .tag {
  background-color: var(--tlal-gray-700);
  color: var(--tlal-gray-300);
}

/* Page Header */
.page-header { 
  margin: 0 0 2rem 0; 
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--tlal-gray-200);
}

.page-header a {
  color: var(--tlal-purple);
  text-decoration: none;
  font-weight: 500;
  margin-bottom: 1rem;
  display: inline-block;
}

.page-header a:hover {
  text-decoration: underline;
  color: var(--tlal-purple-hover);
}

.page-header h1 {
  margin: 1rem 0 0.5rem 0;
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--tlal-gray-900);
}

.page-header .meta { 
  opacity: .7; 
  font-size: .9rem; 
  margin-top: .25rem; 
  color: var(--tlal-gray-500);
}

body.dark .page-header {
  border-bottom-color: var(--tlal-gray-700);
}

body.dark .page-header h1 {
  color: var(--tlal-gray-100);
}

body.dark .page-header .meta {
  color: var(--tlal-gray-400);
}

/* Content Typography */
.content { 
  font-size: 1.05rem; 
  line-height: 1.7;
  color: var(--tlal-gray-800);
}

.content h1 { 
  font-size: 2.25rem; 
  line-height: 1.2; 
  margin: 2rem 0 1rem 0; 
  font-weight: 700;
  color: var(--tlal-gray-900);
}

.content h2 { 
  font-size: 1.75rem; 
  margin: 1.75rem 0 0.75rem 0; 
  font-weight: 600;
  color: var(--tlal-gray-900);
}

.content h3 { 
  font-size: 1.375rem; 
  margin: 1.5rem 0 0.5rem 0; 
  font-weight: 600;
  color: var(--tlal-gray-900);
}

.content h4 {
  font-size: 1.125rem;
  margin: 1.25rem 0 0.5rem 0;
  font-weight: 600;
  color: var(--tlal-gray-900);
}

.content p { 
  margin: 1rem 0; 
  line-height: 1.7;
}

.content ul, .content ol { 
  padding-left: 1.5rem; 
  margin: 1rem 0 1.5rem 0; 
}

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

.content a { 
  text-decoration: none; 
  color: var(--tlal-purple);
  font-weight: 500;
}

.content a:hover { 
  text-decoration: underline; 
  color: var(--tlal-purple-hover);
}

.content blockquote { 
  margin: 1.5rem 0; 
  padding: 1rem 1.5rem; 
  border-left: 4px solid var(--tlal-purple); 
  background: var(--tlal-gray-50); 
  border-radius: 8px; 
  font-style: italic;
  color: var(--tlal-gray-700);
}

.content img { 
  max-width: 100%; 
  height: auto; 
  border-radius: 12px; 
  margin: 1.5rem 0;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.content hr { 
  border: 0; 
  height: 1px; 
  background: var(--tlal-gray-200); 
  margin: 2rem 0; 
}

.content code {
  background-color: var(--tlal-gray-100);
  color: var(--tlal-gray-800);
  padding: 0.125rem 0.25rem;
  border-radius: 0.25rem;
  font-size: 0.875em;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

.content pre {
  background-color: var(--tlal-gray-100);
  color: var(--tlal-gray-800);
  padding: 1rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

.content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* Dark mode styles */
body.dark .content {
  color: var(--tlal-gray-200);
}

body.dark .content h1,
body.dark .content h2,
body.dark .content h3,
body.dark .content h4 {
  color: var(--tlal-gray-100);
}

body.dark .content a {
  color: var(--tlal-purple-light);
}

body.dark .content a:hover {
  color: var(--tlal-purple);
}

body.dark .content blockquote {
  border-left-color: var(--tlal-purple-light);
  background: var(--tlal-gray-800);
  color: var(--tlal-gray-300);
}

body.dark .content hr {
  background: var(--tlal-gray-700);
}

body.dark .content code {
  background-color: var(--tlal-gray-800);
  color: var(--tlal-gray-200);
}

body.dark .content pre {
  background-color: var(--tlal-gray-800);
  color: var(--tlal-gray-200);
}

/* Page Footer */
.page-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--tlal-gray-200);
}

.page-footer p {
  margin: 0;
  color: var(--tlal-gray-500);
  font-size: 0.9rem;
}

.page-footer a {
  color: var(--tlal-purple);
  text-decoration: none;
}

.page-footer a:hover {
  text-decoration: underline;
  color: var(--tlal-purple-hover);
}

body.dark .page-footer {
  border-top-color: var(--tlal-gray-700);
}

body.dark .page-footer p {
  color: var(--tlal-gray-400);
}

body.dark .page-footer a {
  color: var(--tlal-purple-light);
}

body.dark .page-footer a:hover {
  color: var(--tlal-purple);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  .content h1 {
    font-size: 1.875rem;
  }
  
  .content h2 {
    font-size: 1.5rem;
  }
  
  .content h3 {
    font-size: 1.25rem;
  }
  
  .page-header h1 {
    font-size: 2rem;
  }
  
  .card {
    padding: 1.25rem;
  }
}