/**
 * Blog Post View - NEURAL_VOID Dark Design System
 * 
 * A futuristic, tech-inspired design with glass-morphism surfaces,
 * cyan glow effects, and a dark color palette.
 * Theme-aware: supports both light and dark modes.
 */

/* ============================================
   CSS CUSTOM PROPERTIES - Light Theme (Default)
   ============================================ */
:root,
[data-theme="light"] {
  /* Light theme colors */
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --bg-surface: #f0f1f3;
  --bg-surface-high: #e5e6e9;
  --bg-surface-highest: #d8d9dd;
  
  /* Cyan accent colors */
  --cyan-primary: #0099cc;
  --cyan-secondary: #007a99;
  --cyan-fixed: #00aadd;
  --cyan-fixed-dim: #0077aa;
  --cyan-container: #00a8c6;
  --cyan-glow: rgba(0, 153, 204, 0.12);
  --cyan-glow-strong: rgba(0, 153, 204, 0.2);
  
  /* Text colors */
  --text-primary: #1a1a1f;
  --text-secondary: #4a4a52;
  --text-muted: #7a7a85;
  --text-accent: #0099cc;
  
  /* Border colors */
  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-light: rgba(0, 0, 0, 0.1);
  --border-accent: rgba(0, 153, 204, 0.3);
  
  /* Glass effect */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.08);
  
  /* Typography */
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Space Grotesk', 'Consolas', monospace;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  
  /* Border radius */
  --radius-sm: 2px;
  --radius: 4px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition: 300ms ease;
  --transition-slow: 500ms ease;
}

/* ============================================
   CSS CUSTOM PROPERTIES - Dark Theme Override
   ============================================ */
[data-theme="dark"] {
  /* Dark theme colors */
  --bg-primary: #121318;
  --bg-secondary: #1a1b21;
  --bg-surface: #1e1f25;
  --bg-surface-high: #292a2f;
  --bg-surface-highest: #34343a;
  
  /* Cyan accent colors */
  --cyan-primary: #4cd6ff;
  --cyan-secondary: #43d9e9;
  --cyan-fixed: #8bf2ff;
  --cyan-fixed-dim: #4cd6ff;
  --cyan-container: #00bdcc;
  --cyan-glow: rgba(0, 209, 255, 0.15);
  --cyan-glow-strong: rgba(0, 209, 255, 0.25);
  
  /* Text colors */
  --text-primary: #e3e1e9;
  --text-secondary: #bbc9cf;
  --text-muted: #859399;
  --text-accent: #4cd6ff;
  
  /* Border colors */
  --border-subtle: rgba(255, 255, 255, 0.05);
  --border-light: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(0, 209, 255, 0.3);
  
  /* Glass effect */
  --glass-bg: rgba(26, 27, 35, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
}

/* ============================================
   BASE STYLES
   ============================================ */
.blog-post-body {
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 20% 30%, var(--cyan-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--cyan-glow) 0%, transparent 50%);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ============================================
   NAVIGATION
   ============================================ */
.blog-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(18, 19, 24, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.blog-nav-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blog-logo {
  text-decoration: none;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--cyan-primary);
  text-shadow: 0 0 10px rgba(0, 209, 255, 0.5);
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.blog-nav-links {
  display: none;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .blog-nav-links {
    display: flex;
  }
}

.blog-nav-links .nav-link {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.blog-nav-links .nav-link:hover,
.blog-nav-links .nav-link.active {
  color: var(--cyan-primary);
}

.blog-nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.search-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.5rem;
  padding: var(--space-sm);
  transition: color var(--transition-fast);
}

.search-btn:hover {
  color: var(--cyan-primary);
}

.connect-btn {
  display: none;
  padding: var(--space-sm) var(--space-lg);
  background: var(--cyan-container);
  color: #001f28;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

@media (min-width: 768px) {
  .connect-btn {
    display: block;
  }
}

.connect-btn:hover {
  background: var(--cyan-fixed);
  transform: scale(0.98);
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.blog-main {
  padding-top: 100px;
  padding-bottom: var(--space-3xl);
  min-height: 100vh;
}

.blog-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ============================================
   BREADCRUMB
   ============================================ */
.blog-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.blog-breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.blog-breadcrumb a:hover {
  color: var(--cyan-primary);
}

.blog-breadcrumb .separator {
  opacity: 0.5;
}

.blog-breadcrumb .current {
  color: var(--text-secondary);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================
   HERO HEADER
   ============================================ */
.blog-hero {
  margin-bottom: var(--space-2xl);
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.meta-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan-secondary);
  background: var(--glass-bg);
  border: 1px solid var(--border-accent);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.meta-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw + 1rem, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  max-width: 900px;
  background: linear-gradient(to right, var(--cyan-fixed), var(--cyan-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
}

.hero-stats .stat {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.hero-stats .stat-icon {
  font-size: 1rem;
  color: var(--cyan-secondary);
}

/* ============================================
   CONTENT GRID
   ============================================ */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 1024px) {
  .blog-grid {
    grid-template-columns: 1fr 320px;
    gap: var(--space-2xl);
  }
}

/* ============================================
   ARTICLE
   ============================================ */
.blog-article {
  min-width: 0;
}

/* Cover Image */
.article-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-xl);
  border: 1px solid var(--border-light);
  transition: border-color 0.3s ease;
}

.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
  transition: transform var(--transition-slow), opacity 0.3s ease;
}

.article-cover picture {
  display: block;
  width: 100%;
  height: 100%;
}

.article-cover:hover img {
  transform: scale(1.02);
}

.cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-primary), transparent 50%);
  pointer-events: none;
  transition: background 0.3s ease;
}

/* Article Body */
.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.article-body p {
  margin-bottom: var(--space-lg);
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.01em;
}

.article-body h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.article-body a {
  color: var(--cyan-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.article-body a:hover {
  color: var(--cyan-fixed);
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-surface-high);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--cyan-fixed);
  overflow-wrap: break-word;
}

.article-body pre {
  background: var(--bg-surface);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  overflow-x: auto;
  box-shadow: 0 0 20px var(--cyan-glow);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.article-body pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
  color: var(--cyan-fixed);
  display: block;
  line-height: 1.6;
  word-wrap: break-word;
  overflow-wrap: break-word;
  word-break: break-word;
}

.article-body ul,
.article-body ol {
  margin: var(--space-lg) 0;
  padding-left: var(--space-xl);
}

.article-body li {
  margin-bottom: var(--space-sm);
}

.article-body blockquote {
  border-left: 3px solid var(--cyan-container);
  padding-left: var(--space-lg);
  margin: var(--space-xl) 0;
  font-style: italic;
  color: var(--text-secondary);
}

.article-body hr {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: var(--space-2xl) 0;
}

.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: var(--space-lg) 0;
}

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

/* First paragraph drop cap */
.article-body > p:first-of-type::first-letter {
  font-size: 3.5rem;
  font-weight: 900;
  float: left;
  line-height: 1;
  margin-right: var(--space-sm);
  color: var(--cyan-primary);
  text-shadow: 0 0 20px var(--cyan-glow-strong);
}

/* Article Tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.article-tags .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.article-tags .tag:hover {
  background: var(--bg-surface-high);
  border-color: var(--border-accent);
  color: var(--cyan-primary);
}

/* ============================================
   CTA SECTIONS
   ============================================ */
.article-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
  padding: var(--space-xl);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

@media (min-width: 768px) {
  .article-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.article-cta::before {
  content: '';
  position: absolute;
  right: -30px;
  top: -30px;
  width: 120px;
  height: 120px;
  background: var(--cyan-secondary);
  opacity: 0.05;
  border-radius: 50%;
  filter: blur(40px);
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.cta-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  position: relative;
  z-index: 1;
  padding: var(--space-sm) var(--space-lg);
  background: var(--cyan-glow);
  border: 1px solid var(--border-accent);
  color: var(--cyan-primary);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.cta-btn:hover {
  background: var(--cyan-glow-strong);
  color: var(--cyan-fixed);
}

.cta-btn--solid {
  background: var(--cyan-container);
  border-color: var(--cyan-container);
  color: #04131a;
}

.cta-btn--solid:hover {
  background: var(--cyan-fixed);
  border-color: var(--cyan-fixed);
  color: #04131a;
}

.cta-btn .material-symbols-outlined {
  font-size: 1rem;
  transition: transform var(--transition-fast);
}

.cta-btn:hover .material-symbols-outlined {
  transform: rotate(12deg);
}

/* Collaboration CTA */
.collaboration-cta {
  margin-top: var(--space-xl);
  padding: var(--space-2xl);
  background: linear-gradient(135deg, var(--cyan-primary) 0%, var(--cyan-secondary) 100%);
  border-radius: var(--radius-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: background 0.3s ease;
}

.collaboration-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.1;
}

.collab-content {
  position: relative;
  z-index: 1;
}

.collab-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: 0.05em;
  color: var(--bg-primary);
  margin-bottom: var(--space-md);
}

.collab-text {
  font-size: 1rem;
  color: var(--bg-secondary);
  opacity: 0.85;
  max-width: 500px;
  margin: 0 auto var(--space-lg);
}

.collab-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.btn-primary-dark,
.btn-secondary-dark {
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-primary-dark {
  background: var(--bg-primary);
  color: var(--cyan-primary);
}

.btn-primary-dark:hover {
  background: var(--bg-secondary);
  transform: scale(1.02);
}

.btn-secondary-dark {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--bg-primary);
}

.btn-secondary-dark:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ============================================
   SIDEBAR
   ============================================ */
.blog-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.sidebar-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.card-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-secondary);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-md);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Author Section */
.author-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.author-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--cyan-primary);
  padding: 2px;
  flex-shrink: 0;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 2px);
}

.author-details {
  min-width: 0;
}

.author-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.author-role {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}

.author-bio {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.author-links {
  display: flex;
  gap: var(--space-md);
}

.author-links a {
  font-size: 1.25rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.author-links a:hover {
  color: var(--cyan-primary);
}

/* Related Posts */
.related-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.related-item {
  display: block;
  text-decoration: none;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.related-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.related-item:hover .related-title {
  color: var(--cyan-primary);
}

.related-category {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: var(--space-xs);
}

.related-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: var(--space-xs);
  transition: color var(--transition-fast);
}

.related-date {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
}

.archive-btn {
  display: block;
  width: 100%;
  padding: var(--space-sm);
  margin-top: var(--space-md);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-align: center;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.archive-btn:hover {
  border-color: rgba(0, 209, 255, 0.3);
  background: rgba(0, 209, 255, 0.05);
  color: var(--cyan-primary);
}

/* ============================================
   FOOTER
   ============================================ */
.blog-footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-2xl) 0;
  margin-top: var(--space-3xl);
  transition: border-color 0.3s ease;
}

.blog-footer-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .blog-footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cyan-primary);
}

.footer-copyright {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.footer-links a,
.footer-links button {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  opacity: 0.8;
  transition: all var(--transition-fast);
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  cursor: pointer;
  outline: none;
}

.footer-links a:hover,
.footer-links button:hover {
  color: var(--cyan-primary);
  opacity: 1;
}

.footer-links a:focus,
.footer-links button:focus {
  outline: none;
  box-shadow: none;
}

/* ============================================
   GLOW EFFECTS
   ============================================ */
.glow-cyan {
  box-shadow: 0 0 20px var(--cyan-glow);
}

/* ============================================
   UTILITIES
   ============================================ */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ============================================
   ARTICLE FAQ ACCORDION
   ============================================ */
.article-faq {
  margin: var(--space-xl) 0;
  padding: var(--space-xl);
  background: var(--bg-surface);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  box-shadow: 0 0 30px var(--cyan-glow);
}

.article-faq__title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--border-accent);
}

.article-faq__icon {
  width: 1.25em;
  height: 1.25em;
  color: var(--cyan-primary);
  flex-shrink: 0;
}

.article-faq__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.article-faq__item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.article-faq__item:hover {
  border-color: var(--cyan-primary);
}

.article-faq__item[open] {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.15);
}

.article-faq__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  background: transparent;
  transition: background-color 0.2s ease;
}

.article-faq__question::-webkit-details-marker {
  display: none;
}

.article-faq__question:hover {
  background: rgba(0, 212, 255, 0.05);
}

.article-faq__item[open] .article-faq__question {
  color: var(--cyan-primary);
  background: rgba(0, 212, 255, 0.08);
}

.article-faq__toggle {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: 2px solid var(--text-muted);
  border-radius: 50%;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.article-faq__toggle::before,
.article-faq__toggle::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--text-muted);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.article-faq__toggle::before {
  width: 8px;
  height: 2px;
}

.article-faq__toggle::after {
  width: 2px;
  height: 8px;
}

.article-faq__item[open] .article-faq__toggle {
  border-color: var(--cyan-primary);
  transform: rotate(180deg);
}

.article-faq__item[open] .article-faq__toggle::before,
.article-faq__item[open] .article-faq__toggle::after {
  background: var(--cyan-primary);
}

.article-faq__item[open] .article-faq__toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.article-faq__answer {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}