/* ISI Sec — Custom Styles */

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a, button {
  transition: color 0.15s ease, background-color 0.15s ease;
}

/* Prose — Article body content */
.prose { max-width: 68ch; }
.prose h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
  line-height: 1.3;
  color: #111827;
}
.prose h3 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
  color: #1f2937;
}
.prose p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
  color: #374151;
}
.prose ul, .prose ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}
.prose ul { list-style-type: disc; }
.prose ol { list-style-type: decimal; }
.prose li {
  margin-bottom: 0.5rem;
  color: #374151;
  line-height: 1.7;
}
.prose blockquote {
  border-left: 3px solid #4338ca;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: #4b5563;
  background: #f9fafb;
  border-radius: 0 0.375rem 0.375rem 0;
}
.prose a {
  color: #4338ca;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: #c7d2fe;
  font-weight: 500;
  transition: color 0.15s, text-decoration-color 0.15s;
}
.prose a:hover {
  color: #4f46e5;
  text-decoration-color: #4f46e5;
}
.prose strong {
  font-weight: 600;
  color: #111827;
}
.prose img {
  border-radius: 0.5rem;
  margin: 1.5rem 0;
}

/* Tables */
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.9375rem;
  overflow-x: auto;
  display: block;
}
.prose thead {
  border-bottom: 2px solid #d1d5db;
}
.prose th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  color: #111827;
  background: #f9fafb;
  white-space: nowrap;
}
.prose td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #e5e7eb;
  color: #374151;
}
.prose tbody tr:hover {
  background: #f9fafb;
}
@media (max-width: 640px) {
  .prose th, .prose td {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }
}

/* Line clamp */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Focus — Accessibility */
a:focus-visible, button:focus-visible {
  outline: 2px solid #4338ca;
  outline-offset: 2px;
  border-radius: 3px;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.375rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #e5e7eb;
}
.pagination li {
  list-style: none;
}
.pagination a, .pagination .active {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.625rem;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s;
}
.pagination a {
  color: #374151;
  background: #f3f4f6;
}
.pagination a:hover {
  background: #e5e7eb;
  color: #111827;
}
.pagination .active {
  color: white;
  background: #4338ca;
}
.pagination .disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* Print */
@media print {
  header, footer, nav { display: none !important; }
  .prose { max-width: 100%; }
}

/* Selection */
::selection {
  background: #c7d2fe;
  color: #1e1b4b;
}