/* ==========================================================================
   HudIsThinking — Cosmic Philosophy & Creations Design System
   Visual Language Reference: connect.hudisthinking.com + Cosmic Space Identity
   ========================================================================== */

:root {
  /* Cosmic Color Palette */
  --hit-bg-void: #090511;
  --hit-bg-deep: #0e091b;
  --hit-bg-surface: #150f28;
  --hit-bg-surface-raised: #1c1435;
  --hit-bg-surface-glass: rgba(21, 15, 40, 0.75);
  
  /* Starlight & Accents */
  --hit-purple-glow: #8b5cf6;
  --hit-purple-bright: #a78bfa;
  --hit-purple-light: #c4b5fd;
  --hit-purple-dark: #3b1768;
  --hit-purple-deep: #250e44;
  --hit-cyan-starlight: #38bdf8;
  --hit-amber-nebula: #fbbf24;
  --hit-emerald-spark: #34d399;
  
  /* Text & Readability */
  --hit-text-primary: #f8fafc;
  --hit-text-secondary: #cbd5e1;
  --hit-text-muted: #94a3b8;
  --hit-text-faint: #64748b;
  
  /* Borders & Dividers */
  --hit-border-subtle: rgba(139, 92, 246, 0.18);
  --hit-border-medium: rgba(139, 92, 246, 0.35);
  --hit-border-bright: rgba(196, 181, 253, 0.6);
  --hit-border-glass: rgba(255, 255, 255, 0.1);
  
  /* Shadows & Glows */
  --hit-glow-sm: 0 0 15px rgba(139, 92, 246, 0.15);
  --hit-glow-md: 0 0 35px rgba(139, 92, 246, 0.25);
  --hit-glow-lg: 0 0 65px rgba(139, 92, 246, 0.35);
  --hit-shadow-card: 0 16px 40px rgba(0, 0, 0, 0.45), 0 0 25px rgba(139, 92, 246, 0.08);
  
  /* Typography */
  --font-display: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Spectral', 'Merriweather', 'Georgia', serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  
  /* Layout */
  --header-height: 72px;
  --max-width-content: 1200px;
  --max-width-article: 820px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Mode Overrides (Optional / Supported) */
[data-theme="light"] {
  --hit-bg-void: #f8fafc;
  --hit-bg-deep: #f1f5f9;
  --hit-bg-surface: #ffffff;
  --hit-bg-surface-raised: #f8fafc;
  --hit-bg-surface-glass: rgba(255, 255, 255, 0.85);
  
  --hit-purple-glow: #7c3aed;
  --hit-purple-bright: #6d28d9;
  --hit-purple-light: #5b21b6;
  --hit-purple-dark: #ede9fe;
  --hit-purple-deep: #ddd6fe;
  
  --hit-text-primary: #0f172a;
  --hit-text-secondary: #334155;
  --hit-text-muted: #64748b;
  --hit-text-faint: #94a3b8;
  
  --hit-border-subtle: rgba(124, 58, 237, 0.15);
  --hit-border-medium: rgba(124, 58, 237, 0.25);
  --hit-border-bright: rgba(124, 58, 237, 0.5);
  --hit-border-glass: rgba(0, 0, 0, 0.08);
  
  --hit-shadow-card: 0 12px 30px rgba(0, 0, 0, 0.06), 0 0 20px rgba(124, 58, 237, 0.05);
}

/* Base Reset & Typography */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  font-size: 16px;
}

body {
  background-color: var(--hit-bg-void);
  color: var(--hit-text-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Atmosphere Canvas & Nebulae */
#cosmic-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

.cosmic-nebula-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.16;
}

.nebula-top-left {
  top: -150px;
  left: -150px;
  background: radial-gradient(circle, var(--hit-purple-glow), transparent 70%);
}

.nebula-bottom-right {
  bottom: -200px;
  right: -200px;
  background: radial-gradient(circle, var(--hit-purple-dark), transparent 70%);
}

.nebula-mid-center {
  top: 40%;
  right: 15%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, var(--hit-cyan-starlight), transparent 75%);
  opacity: 0.08;
}

/* Page Layout Container */
.site-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(16px, 4vw, 32px);
  padding-right: clamp(16px, 4vw, 32px);
}

.container-narrow {
  max-width: var(--max-width-article);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(9, 5, 17, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--hit-border-subtle);
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(9, 5, 17, 0.92);
  border-bottom-color: var(--hit-border-medium);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--hit-text-primary);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  transition: opacity var(--transition-fast);
}

.site-brand:hover {
  opacity: 0.9;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.25);
  color: #ffffff;
  overflow: hidden;
  padding: 4px;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-brand:hover .brand-icon {
  transform: translateY(-1px) scale(1.04);
  border-color: rgba(168, 85, 247, 0.7);
  box-shadow: 0 0 22px rgba(168, 85, 247, 0.5);
}

.brand-icon .brand-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  image-rendering: -webkit-optimize-contrast;
}

.brand-text {
  background: linear-gradient(135deg, #ffffff 40%, var(--hit-purple-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text span {
  color: var(--hit-purple-bright);
  -webkit-text-fill-color: var(--hit-purple-bright);
}

/* Nav Links */
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  color: var(--hit-text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--hit-text-primary);
  background: rgba(139, 92, 246, 0.1);
}

.nav-link.active {
  color: #ffffff;
  background: rgba(139, 92, 246, 0.16);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

/* Connect Badge Button in Nav */
.nav-connect-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(91, 33, 182, 0.35));
  border: 1px solid rgba(196, 181, 253, 0.5);
  color: #ffffff;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
  transition: all var(--transition-fast);
}

.nav-connect-btn:hover {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.4), rgba(91, 33, 182, 0.6));
  border-color: rgba(196, 181, 253, 0.8);
  box-shadow: 0 0 28px rgba(139, 92, 246, 0.4);
  transform: translateY(-1px);
}

.connect-pulse {
  width: 7px;
  height: 7px;
  background-color: var(--hit-cyan-starlight);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--hit-cyan-starlight);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Search bar button in nav */
.nav-search-btn {
  background: transparent;
  border: 1px solid var(--hit-border-subtle);
  color: var(--hit-text-muted);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.nav-search-btn:hover {
  border-color: var(--hit-border-medium);
  color: var(--hit-text-primary);
  background: rgba(255, 255, 255, 0.04);
}

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--hit-border-subtle);
  color: var(--hit-text-primary);
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* Mobile Drawer */
.mobile-drawer {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(9, 5, 17, 0.97);
  backdrop-filter: blur(20px);
  z-index: 49;
  padding: 24px;
  flex-direction: column;
  gap: 16px;
  border-bottom: 1px solid var(--hit-border-medium);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  display: flex;
}

.mobile-drawer .nav-link {
  font-size: 1.125rem;
  padding: 12px 16px;
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: clamp(60px, 10vw, 120px) 0 clamp(40px, 8vw, 80px);
  text-align: center;
  overflow: hidden;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(196, 181, 253, 0.35);
  color: var(--hit-purple-light);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.15);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 4.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title .glow-text {
  background: linear-gradient(135deg, #ffffff 30%, var(--hit-purple-light) 75%, var(--hit-cyan-starlight) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.hero-subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--hit-text-secondary);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 36px;
  font-weight: 400;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* Universal Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--hit-purple-glow), #6d28d9);
  color: #ffffff;
  border-color: rgba(196, 181, 253, 0.4);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #9d71fa, #7c3aed);
  box-shadow: 0 6px 30px rgba(139, 92, 246, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(21, 15, 40, 0.85);
  color: var(--hit-text-primary);
  border-color: var(--hit-border-medium);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(30, 20, 56, 0.95);
  border-color: var(--hit-border-bright);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.8125rem;
  border-radius: 6px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.0625rem;
}

/* Connect Universe Card (Replaces Old Submission Widgets) */
.hit-connect-portal-card {
  position: relative;
  width: 100%;
  margin: 60px 0;
  padding: 2px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.95), rgba(91, 33, 182, 0.35), rgba(196, 181, 253, 0.75));
  box-shadow: var(--hit-shadow-card), 0 0 50px rgba(139, 92, 246, 0.15);
  overflow: hidden;
}

.hit-connect-portal-inner {
  position: relative;
  background: radial-gradient(circle at 85% 15%, rgba(139, 92, 246, 0.22), transparent 45%),
              radial-gradient(circle at 15% 90%, rgba(91, 33, 182, 0.22), transparent 45%),
              var(--hit-bg-deep);
  padding: clamp(32px, 6vw, 60px);
  border-radius: calc(var(--radius-lg) - 2px);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: center;
}

@media (max-width: 900px) {
  .hit-connect-portal-inner {
    grid-template-columns: 1fr;
  }
}

.connect-portal-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--hit-cyan-starlight);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.connect-portal-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  color: #ffffff;
}

.connect-portal-desc {
  color: var(--hit-text-secondary);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 24px;
}

.connect-features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}

.connect-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--hit-text-secondary);
}

.connect-feature-icon {
  width: 20px;
  height: 20px;
  color: var(--hit-purple-bright);
  flex-shrink: 0;
  margin-top: 2px;
}

.connect-portal-preview-box {
  background: rgba(14, 9, 27, 0.8);
  border: 1px solid var(--hit-border-medium);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.preview-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--hit-border-subtle);
  padding-bottom: 12px;
}

.preview-box-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--hit-purple-light);
}

.preview-tag {
  background: rgba(56, 189, 248, 0.15);
  color: var(--hit-cyan-starlight);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-weight: 600;
}

.preview-item {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.preview-item-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--hit-text-primary);
  margin-bottom: 4px;
}

.preview-item-meta {
  font-size: 0.75rem;
  color: var(--hit-text-muted);
}

/* Cards Grid & Content Layout */
.section {
  padding: 60px 0;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 36px;
  gap: 20px;
  flex-wrap: wrap;
}

.section-title-group {
  max-width: 600px;
}

.section-tag {
  color: var(--hit-purple-bright);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.375rem);
  font-weight: 700;
  color: var(--hit-text-primary);
  line-height: 1.25;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

@media (max-width: 640px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

/* Modern Cosmic Article & Project Cards */
.hit-card {
  background: var(--hit-bg-surface);
  border: 1px solid var(--hit-border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.hit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--hit-purple-glow), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.hit-card:hover {
  background: var(--hit-bg-surface-raised);
  border-color: var(--hit-border-medium);
  box-shadow: var(--hit-shadow-card);
  transform: translateY(-4px);
}

.hit-card:hover::before {
  opacity: 1;
}

.card-meta-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 16px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(139, 92, 246, 0.12);
  color: var(--hit-purple-light);
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.badge-purple { background: rgba(139, 92, 246, 0.15); color: var(--hit-purple-light); border-color: rgba(139, 92, 246, 0.3); }
.badge-cyan { background: rgba(56, 189, 248, 0.15); color: var(--hit-cyan-starlight); border-color: rgba(56, 189, 248, 0.3); }
.badge-amber { background: rgba(251, 191, 36, 0.15); color: var(--hit-amber-nebula); border-color: rgba(251, 191, 36, 0.3); }
.badge-emerald { background: rgba(52, 211, 153, 0.15); color: var(--hit-emerald-spark); border-color: rgba(52, 211, 153, 0.3); }

.card-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--hit-text-primary);
  line-height: 1.35;
  margin-bottom: 12px;
}

.card-excerpt {
  color: var(--hit-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--hit-border-subtle);
  font-size: 0.8125rem;
  color: var(--hit-text-muted);
}

.card-action-link {
  color: var(--hit-purple-bright);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}

.hit-card:hover .card-action-link {
  gap: 8px;
  color: #ffffff;
}

/* Long-Form Philosophy Reading Environment */
.article-reading-container {
  padding: 40px 0 80px;
}

.article-header {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hit-border-subtle);
}

.article-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--hit-text-muted);
  margin-bottom: 20px;
}

.article-breadcrumbs a {
  color: var(--hit-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.article-breadcrumbs a:hover {
  color: var(--hit-purple-bright);
}

.article-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
  color: #ffffff;
}

.article-subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--hit-text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 16px 20px;
  background: var(--hit-bg-surface);
  border: 1px solid var(--hit-border-subtle);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--hit-text-muted);
}

.article-meta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Article Reading Progress Bar */
#reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--hit-purple-glow), var(--hit-cyan-starlight));
  width: 0%;
  z-index: 100;
  transition: width 0.1s linear;
}

/* Article Layout Grid (TOC Sidebar + Main Content) */
.article-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: flex-start;
}

@media (max-width: 1024px) {
  .article-grid {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    display: none;
  }
}

.article-body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.8;
  color: #e2e8f0;
}

.article-body p {
  margin-bottom: 1.65em;
}

.article-body h1, .article-body h2, .article-body h3, .article-body h4 {
  font-family: var(--font-display);
  color: #ffffff;
  margin-top: 2.2em;
  margin-bottom: 0.8em;
  line-height: 1.3;
  scroll-margin-top: 100px;
}

.article-body h1 { font-size: 2rem; border-bottom: 1px solid var(--hit-border-subtle); padding-bottom: 0.3em; }
.article-body h2 { font-size: 1.625rem; }
.article-body h3 { font-size: 1.3rem; }
.article-body h4 { font-size: 1.15rem; color: var(--hit-purple-light); }

.article-body ul, .article-body ol {
  margin-bottom: 1.65em;
  padding-left: 1.5em;
}

.article-body li {
  margin-bottom: 0.6em;
}

.article-body blockquote {
  border-left: 3px solid var(--hit-purple-bright);
  padding: 16px 24px;
  background: rgba(139, 92, 246, 0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 2em 0;
  font-style: italic;
  color: #f1f5f9;
}

/* Formal Syllogism / Premise Formatting */
.article-body strong {
  color: #ffffff;
}

.citation-box {
  background: var(--hit-bg-surface);
  border: 1px solid var(--hit-border-medium);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 40px 0;
}

.citation-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--hit-purple-light);
}

.citation-text {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--hit-text-secondary);
  background: rgba(0, 0, 0, 0.3);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  user-select: all;
}

.license-footer-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(21, 15, 40, 0.7);
  border: 1px solid var(--hit-border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 48px;
  font-size: 0.875rem;
  color: var(--hit-text-muted);
}

/* Sticky Table of Contents Sidebar */
.toc-sidebar {
  position: sticky;
  top: 100px;
  background: var(--hit-bg-surface);
  border: 1px solid var(--hit-border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  max-height: calc(100vh - 140px);
  overflow-y: auto;
}

.toc-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--hit-purple-light);
  margin-bottom: 14px;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toc-item a {
  color: var(--hit-text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  line-height: 1.4;
  display: block;
  transition: all var(--transition-fast);
  padding: 4px 8px;
  border-radius: 4px;
}

.toc-item.level-2 { padding-left: 8px; }
.toc-item.level-3 { padding-left: 16px; font-size: 0.75rem; }

.toc-item a:hover, .toc-item.active a {
  color: #ffffff;
  background: rgba(139, 92, 246, 0.15);
}

/* Footer */
.site-footer {
  margin-top: auto;
  background: var(--hit-bg-deep);
  border-top: 1px solid var(--hit-border-subtle);
  padding: 60px 0 30px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.footer-brand-desc {
  color: var(--hit-text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-top: 12px;
  max-width: 320px;
}

.footer-col-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-list a {
  color: var(--hit-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links-list a:hover {
  color: var(--hit-purple-bright);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--hit-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8125rem;
  color: var(--hit-text-faint);
}

/* Accessibility & Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  #cosmic-canvas {
    display: none !important;
  }
}