/* ================================
   Link Field Theme - Pillar Page Styles
   Professional Guide Page Design
   ================================ */

/* ================================
   Pillar Hero Section
   ================================ */
.pillar-hero {
  position: relative;
  padding: 5rem 0 4rem;
  color: #FFFFFF;
  overflow: hidden;
}

.pillar-hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--color-blue) 0%, #2c5282 50%, var(--color-primary-dark) 100%);
  z-index: 0;
}

.pillar-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.2);
}

.pillar-hero-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0,230,118,0.15) 0%, transparent 50%);
  opacity: 0.8;
}

.pillar-hero .container {
  position: relative;
  z-index: 1;
}

.pillar-hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.pillar-hero-label {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: rgba(0, 230, 118, 0.3);
  border: 1px solid rgba(0, 230, 118, 0.5);
  border-radius: 50px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  color: #FFFFFF;
}

.pillar-hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: #FFFFFF;
  line-height: 1.2;
}

.pillar-hero-description {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  opacity: 0.95;
  margin-bottom: var(--space-lg);
}

.pillar-hero-meta {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.pillar-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

.pillar-meta-item svg {
  opacity: 0.8;
}

/* ================================
   Table of Contents Section
   ================================ */
.pillar-toc-section {
  background: var(--color-bg-secondary);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.pillar-toc-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.pillar-toc {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.pillar-toc-title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary);
}

.pillar-toc-title svg {
  color: var(--color-primary);
}

.pillar-toc-nav ul {
  list-style: none;
  display: grid;
  gap: var(--space-xs);
}

.pillar-toc-nav li {
  margin: 0;
}

.pillar-toc-nav li.toc-h2 {
  margin-top: var(--space-sm);
}

.pillar-toc-nav li.toc-h2:first-child {
  margin-top: 0;
}

.pillar-toc-nav li.toc-h3 {
  padding-left: var(--space-lg);
}

.pillar-toc-nav a {
  display: block;
  padding: 0.75rem var(--space-sm);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.pillar-toc-nav li.toc-h2 > a {
  font-weight: 600;
  color: var(--color-text-primary);
}

.pillar-toc-nav a:hover {
  background: var(--color-bg-secondary);
  border-left-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateX(4px);
}

/* ================================
   Main Content Section
   ================================ */
.pillar-content-section {
  padding: var(--space-2xl) 0;
}

.pillar-content-wrapper {
  display: grid;
  gap: var(--space-2xl);
  max-width: 100%;
}

/* Main Content Styling */
.pillar-content {
  max-width: 800px;
  margin: 0 auto;
}

.pillar-content h2 {
  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 3px solid var(--color-primary);
  position: relative;
}

.pillar-content h2::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 60px;
  height: 3px;
  background: var(--color-primary-dark);
}

.pillar-content h3 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  padding-left: var(--space-md);
  border-left: 4px solid var(--color-primary);
}

.pillar-content h4 {
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.pillar-content p {
  font-size: var(--font-size-base);
  line-height: 1.9;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.pillar-content strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

/* Lists */
.pillar-content ul,
.pillar-content ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.pillar-content li {
  margin-bottom: var(--space-xs);
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.pillar-content ul li::marker {
  color: var(--color-primary);
}

/* Tables */
.pillar-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-lg);
  background: #FFFFFF;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.pillar-content th {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #FFFFFF;
  font-weight: 600;
  padding: var(--space-sm) var(--space-md);
  text-align: left;
}

.pillar-content td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.pillar-content tr:last-child td {
  border-bottom: none;
}

.pillar-content tr:nth-child(even) {
  background: var(--color-bg-secondary);
}

/* Code Blocks */
.pillar-content pre,
.pillar-content code {
  font-family: 'Consolas', 'Monaco', monospace;
}

.pillar-content code {
  background: var(--color-bg-secondary);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  color: var(--color-primary-dark);
}

.pillar-content pre {
  background: var(--color-bg-dark);
  color: #e0e0e0;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--space-lg);
  border-left: 4px solid var(--color-primary);
}

.pillar-content pre code {
  background: transparent;
  padding: 0;
  color: inherit;
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

/* Blockquotes */
.pillar-content blockquote {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, rgba(0, 230, 118, 0.1) 100%);
  border-left: 4px solid var(--color-primary);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.pillar-content blockquote p {
  color: var(--color-text-primary);
  font-weight: 500;
  margin-bottom: 0;
}

/* Links */
.pillar-content a {
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-decoration-color: var(--color-primary-light);
  text-underline-offset: 3px;
  transition: all var(--transition-fast);
}

.pillar-content a:hover {
  color: var(--color-primary);
  text-decoration-color: var(--color-primary);
}

/* Horizontal Rules */
.pillar-content hr {
  border: none;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  margin: var(--space-2xl) 0;
}

/* ================================
   Sidebar
   ================================ */
.pillar-sidebar {
  display: none;
}

.pillar-sidebar-sticky {
  position: sticky;
  top: 100px;
  display: grid;
  gap: var(--space-lg);
}

/* Progress Card */
.pillar-progress-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.pillar-progress-card h3 {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.pillar-progress-bar {
  height: 8px;
  background: var(--color-bg-secondary);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: var(--space-xs);
}

.pillar-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
  border-radius: 4px;
  width: 0%;
  transition: width 0.3s ease;
}

.pillar-progress-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Related Card */
.pillar-related-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.pillar-related-card h3 {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary);
}

.pillar-related-list {
  list-style: none;
  display: grid;
  gap: var(--space-xs);
}

.pillar-related-list a {
  display: block;
  padding: 0.5rem 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  border-left: 2px solid transparent;
  padding-left: var(--space-sm);
}

.pillar-related-list a:hover {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  transform: translateX(4px);
}

/* CTA Card */
.pillar-cta-card {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  color: #FFFFFF;
  text-align: center;
}

.pillar-cta-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
  color: #FFFFFF;
}

.pillar-cta-card p {
  font-size: var(--font-size-sm);
  opacity: 0.95;
  margin-bottom: var(--space-md);
}

.pillar-cta-card .btn {
  background: #FFFFFF;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.pillar-cta-card .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ================================
   Related Articles Section
   ================================ */
.pillar-related-section {
  background: var(--color-bg-secondary);
  padding: var(--space-2xl) 0;
}

.pillar-related-section .section-title {
  font-size: var(--font-size-2xl);
  text-align: center;
  margin-bottom: var(--space-xl);
  color: var(--color-text-primary);
}

.pillar-articles-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

.pillar-article-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.pillar-article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pillar-article-card a {
  display: block;
  text-decoration: none;
}

.pillar-article-thumbnail {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.pillar-article-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.pillar-article-card:hover .pillar-article-thumbnail img {
  transform: scale(1.05);
}

.pillar-article-content {
  padding: var(--space-md);
}

.pillar-article-content h3 {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
  line-height: 1.4;
}

.pillar-article-date {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

/* ================================
   Bottom CTA Section
   ================================ */
.pillar-bottom-cta {
  background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-primary-dark) 100%);
  padding: var(--space-3xl) 0;
  color: #FFFFFF;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pillar-bottom-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 30% 70%, rgba(0, 230, 118, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.pillar-bottom-cta-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.pillar-bottom-cta h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-md);
  color: #FFFFFF;
}

.pillar-bottom-cta p {
  font-size: var(--font-size-lg);
  opacity: 0.95;
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

.pillar-cta-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.btn-white {
  background: #FFFFFF;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-primary-dark);
}

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

.btn-outline-white:hover {
  background: #FFFFFF;
  color: var(--color-primary);
}

/* ================================
   Responsive - Tablet
   ================================ */
@media (min-width: 768px) {
  .pillar-hero {
    padding: 6rem 0 5rem;
  }

  .pillar-hero-title {
    font-size: var(--font-size-5xl);
  }

  .pillar-toc-nav ul {
    grid-template-columns: repeat(2, 1fr);
  }

  .pillar-articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ================================
   Responsive - Desktop
   ================================ */
@media (min-width: 1024px) {
  .pillar-hero {
    padding: 7rem 0 6rem;
  }

  .pillar-content-wrapper {
    grid-template-columns: 1fr 300px;
    max-width: 1200px;
    margin: 0 auto;
  }

  .pillar-content {
    max-width: none;
  }

  .pillar-sidebar {
    display: block;
  }

  .pillar-toc-nav ul {
    grid-template-columns: 1fr;
  }

  .pillar-articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pillar-content h2 {
    font-size: var(--font-size-3xl);
  }
}

/* ================================
   Print Styles
   ================================ */
@media print {
  .pillar-hero-background,
  .pillar-sidebar,
  .pillar-bottom-cta,
  .pillar-related-section {
    display: none;
  }

  .pillar-hero {
    background: #FFFFFF;
    color: #000000;
    padding: 2rem 0;
  }

  .pillar-hero-title,
  .pillar-hero-label {
    color: #000000;
  }

  .pillar-content {
    max-width: 100%;
  }

  .pillar-content pre {
    background: #f5f5f5;
    color: #333333;
  }
}

/* ================================
   Accessibility
   ================================ */
@media (prefers-reduced-motion: reduce) {
  .pillar-progress-fill,
  .pillar-article-thumbnail img,
  .pillar-article-card,
  .pillar-toc-nav a {
    transition: none;
  }
}

.pillar-toc-nav a:focus,
.pillar-related-list a:focus,
.pillar-article-card a:focus {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}