:root {
  /* Color Palette */
  --bg-primary: #0a0f1e;
  --bg-secondary: #131a2d;
  --bg-surface: #1a2238;
  --bg-card: #1e273e;

  /* Border Colors */
  --border-primary: #2a3452;
  --border-secondary: #3a4462;
  --border-accent: #4a5472;

  /* Text Colors */
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #cbd5e1;

  /* Brand Colors */
  --primary: #0ea5a4;
  --primary-dark: #0d9494;
  --primary-light: #10b6b6;
  --secondary: #06b6d4;
  --accent: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-card: linear-gradient(145deg, var(--bg-card), var(--bg-surface));
  --gradient-surface: linear-gradient(
    145deg,
    var(--bg-surface),
    var(--bg-secondary)
  );

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.2);

  /* Glows */
  --glow-primary: 0 0 20px rgba(14, 165, 164, 0.3);
  --glow-secondary: 0 0 20px rgba(6, 182, 212, 0.3);
  --glow-accent: 0 0 20px rgba(139, 92, 246, 0.3);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-bounce: 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Fonts */
  --font-heading: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Consolas", monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: 2.75rem;
  background: linear-gradient(135deg, var(--text-primary), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: 2rem;
  color: var(--text-primary);
  margin-top: var(--space-2xl);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--border-primary);
}

h3 {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-top: var(--space-xl);
}

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

.lead {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.7;
}

/* Reading Progress Bar */
.reading-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.05);
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.reading-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  transition: width var(--transition-fast);
  box-shadow: var(--glow-primary);
  position: relative;
  overflow: hidden;
}

.reading-progress-bar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Reading Time Display */
.reading-time-display {
  position: fixed;
  top: var(--space-md);
  right: var(--space-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  animation: slideInRight 0.3s ease-out;
}

.reading-time-display i {
  color: var(--primary);
  font-size: 1rem;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-primary);
  backdrop-filter: blur(12px);
  background: rgba(19, 26, 45, 0.85);
  box-shadow: var(--shadow-lg);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.brand::before {
  content: "";
  font-size: 1.2em;
}

.brand:hover {
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-1px);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-md);
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-weight: 500;
  position: relative;
}

.main-nav a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.main-nav a.active {
  color: var(--primary);
  background: rgba(14, 165, 164, 0.1);
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

/* Main Content Layout */
.post-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

.post-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-xl);
  align-items: start;
}

/* Enhanced Article Styling */
.post-article {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.6s ease-out;
}

.post-article::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.post-article::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at 20% 80%,
    rgba(14, 165, 164, 0.1) 0%,
    transparent 50%
  );
  pointer-events: none;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero Section */
.post-hero {
  margin-bottom: var(--space-2xl);
}

.eyebrow {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: rgba(14, 165, 164, 0.1);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
  border: 1px solid rgba(14, 165, 164, 0.2);
}

.post-title {
  font-size: 2.75rem;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--text-primary), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Post Meta */
.post-meta {
  display: flex;
  gap: var(--space-lg);
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  align-items: center;
}

.author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
}

.author-avatar.large {
  width: 64px;
  height: 64px;
  font-size: 1.25rem;
}

.post-meta i {
  margin-right: var(--space-xs);
  color: var(--primary);
}

/* Reading Controls */
.post-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-primary);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.text-size-controls {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.text-size-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

.size-buttons {
  display: flex;
  gap: var(--space-xs);
  background: var(--bg-card);
  padding: var(--space-xs);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-primary);
}

.size-btn {
  padding: var(--space-sm) var(--space-md);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 600;
  min-width: 48px;
}

.size-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.size-btn.active {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.audio-controls {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.read-aloud-btn {
  padding: var(--space-md) var(--space-lg);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.read-aloud-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--glow-primary);
}

.read-aloud-btn:active {
  transform: translateY(0);
}

.accent-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.9rem;
  user-select: none;
}

.toggle-switch {
  position: relative;
  width: 50px;
  height: 26px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: var(--transition-fast);
}

input:checked + .toggle-slider {
  background: var(--gradient-primary);
  border-color: var(--primary);
}

input:checked + .toggle-slider:before {
  transform: translateX(24px);
  background: white;
}

/* Ethiopian Context Section */
.ethiopian-context {
  background: rgba(255, 215, 0, 0.05);
  border: 1px solid rgba(255, 215, 0, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin: var(--space-2xl) 0;
  position: relative;
  animation: slideInLeft 0.5s ease-out;
}

.ethiopian-context::before {
  content: "🇪🇹";
  position: absolute;
  top: -12px;
  left: 20px;
  background: var(--bg-card);
  padding: 0 var(--space-sm);
  font-size: 1.2rem;
}

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

.context-header h3 {
  color: #ffd700;
  margin: 0;
  font-size: 1.5rem;
}

.speed-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  border: 1px solid rgba(255, 215, 0, 0.2);
}

.speed-indicator i {
  color: var(--warning);
}

.context-details p {
  margin-bottom: var(--space-sm);
  padding-left: var(--space-md);
  position: relative;
}

.context-details p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
}

/* Enhanced Code Blocks */
.code-block-container {
  margin: var(--space-2xl) 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-primary);
  background: #0b1222;
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.5s ease-out;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: rgba(14, 165, 164, 0.1);
  border-bottom: 1px solid var(--border-primary);
}

.language-badge {
  padding: var(--space-xs) var(--space-md);
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.code-actions {
  display: flex;
  gap: var(--space-sm);
}

.code-btn {
  padding: var(--space-sm) var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

.code-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.code-btn:active {
  transform: translateY(0);
}

.code-content {
  position: relative;
}

.line-numbers {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 40px;
  background: rgba(255, 255, 255, 0.02);
  border-right: 1px solid var(--border-primary);
  padding: var(--space-lg) var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-align: right;
  line-height: 1.5;
  user-select: none;
}

.code-content pre {
  margin: 0;
  padding: var(--space-lg) var(--space-lg) var(--space-lg) 56px;
  overflow-x: auto;
  background: transparent;
}

.code-content code {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.5;
}

.code-comment {
  color: #6a9955;
  font-style: italic;
}

/* Comparison Table */
.comparison-table {
  margin: var(--space-2xl) 0;
  overflow-x: auto;
}

.comparison-table h3 {
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.comparison-table th {
  background: var(--gradient-primary);
  color: white;
  font-weight: 600;
  padding: var(--space-lg);
  text-align: left;
}

.comparison-table td {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-primary);
  color: var(--text-secondary);
}

.comparison-table tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

/* Interactive Quiz */
.quiz-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
  animation: slideInUp 0.5s ease-out;
}

.quiz-question {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.quiz-options {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.quiz-option {
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.quiz-option:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--primary);
  transform: translateX(4px);
}

.quiz-option.selected {
  background: rgba(14, 165, 164, 0.1);
  border-color: var(--primary);
}

.option-label {
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.option-text {
  flex: 1;
  color: var(--text-secondary);
}

.submit-quiz-btn {
  padding: var(--space-md) var(--space-lg);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.submit-quiz-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.quiz-feedback {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin-top: var(--space-md);
  display: none;
  animation: fadeIn 0.3s ease-out;
}

.quiz-feedback.correct {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
}

.quiz-feedback.incorrect {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--danger);
}

/* Code Playground */
.playground {
  background: var(--bg-surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-2xl) 0;
  box-shadow: var(--shadow-xl);
}

.playground-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-primary);
}

.playground-tabs {
  display: flex;
  gap: var(--space-xs);
}

.playground-tab {
  padding: var(--space-sm) var(--space-lg);
  background: transparent;
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 500;
}

.playground-tab:hover {
  background: rgba(255, 255, 255, 0.05);
}

.playground-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.playground-actions {
  display: flex;
  gap: var(--space-sm);
}

.playground-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 400px;
}

.editor-container,
.preview-container {
  position: relative;
}

.editor-container {
  border-right: 1px solid var(--border-primary);
}

.playground-editor {
  width: 100%;
  height: 100%;
  min-height: 400px;
  padding: var(--space-lg);
  background: #0b1222;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  border: none;
  resize: none;
  outline: none;
  line-height: 1.6;
}

.playground-editor:focus {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

.preview-container {
  background: white;
}

.preview-frame {
  width: 100%;
  height: 100%;
  min-height: 400px;
  border: none;
  background: white;
}

.run-btn {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--space-lg);
  padding: var(--space-md) var(--space-xl);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-fast);
  z-index: 10;
}

.run-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.run-btn:active {
  transform: translateY(0);
}

/* Deployment Steps */
.deployment-steps {
  display: grid;
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.step {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-primary);
  transition: all var(--transition-fast);
}

.step:hover {
  border-color: var(--primary);
  transform: translateX(8px);
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.step-content h3 {
  margin-top: 0;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

/* Engagement Section */
.engagement-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-xl);
  background: var(--bg-surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  margin: var(--space-2xl) 0;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.engagement-buttons {
  display: flex;
  gap: var(--space-md);
}

.engagement-btn {
  padding: var(--space-md) var(--space-lg);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
  min-width: 140px;
  justify-content: center;
}

.like-btn {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.like-btn:hover,
.like-btn.active {
  background: #ef4444;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(239, 68, 68, 0.3);
}

.bookmark-btn {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.bookmark-btn:hover,
.bookmark-btn.active {
  background: #f59e0b;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
}

.share-section {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.share-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.share-buttons {
  display: flex;
  gap: var(--space-sm);
}

.share-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-bounce);
  font-size: 1.1rem;
}

.share-btn.twitter {
  background: rgba(29, 161, 242, 0.1);
  color: #1da1f2;
  border: 1px solid rgba(29, 161, 242, 0.2);
}

.share-btn.linkedin {
  background: rgba(0, 119, 181, 0.1);
  color: #0077b5;
  border: 1px solid rgba(0, 119, 181, 0.2);
}

.share-btn.telegram {
  background: rgba(0, 136, 204, 0.1);
  color: #0088cc;
  border: 1px solid rgba(0, 136, 204, 0.2);
}

.share-btn:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: var(--shadow-lg);
}

.copy-link-btn {
  padding: var(--space-md) var(--space-lg);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.copy-link-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--glow-primary);
}

.print-btn {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.print-btn:hover {
  background: var(--primary);
  color: white;
  transform: rotate(15deg);
}

/* Article Navigation */
.article-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.prev-article,
.next-article {
  padding: var(--space-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-fast);
  display: block;
}

.prev-article:hover,
.next-article:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.prev-article {
  text-align: left;
}

.next-article {
  text-align: right;
}

.nav-label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.nav-title {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

/* Tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
}

.tags-label {
  color: var(--text-secondary);
  font-weight: 500;
  margin-right: var(--space-sm);
}

.tag {
  padding: var(--space-xs) var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.tag:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* Author Bio */
.author-bio {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-primary);
  margin: var(--space-xl) 0;
  align-items: flex-start;
}

.author-bio-image {
  flex-shrink: 0;
}

.author-bio-content h3 {
  margin-top: 0;
  color: var(--text-primary);
}

.author-bio-content p {
  margin-bottom: var(--space-md);
}

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

.author-links a {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.author-links a:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

/* Sidebar */
.post-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

/* Table of Contents */
.toc-container {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 100px;
}

.toc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.toc-header h3 {
  margin: 0;
  color: var(--text-primary);
  font-size: 1.25rem;
}

.toc-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.2rem;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.toc-toggle:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.toc-content {
  max-height: 500px;
  overflow-y: auto;
  padding-right: var(--space-sm);
}

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

.toc-item {
  margin-bottom: 0;
}

.toc-link {
  display: block;
  padding: var(--space-md);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.toc-link:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  padding-left: var(--space-lg);
}

.toc-link.active {
  background: rgba(14, 165, 164, 0.1);
  color: var(--primary);
  font-weight: 600;
  padding-left: var(--space-lg);
}

.toc-link.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.section-progress {
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  margin-top: var(--space-xs);
  overflow: hidden;
}

.section-progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  transition: width var(--transition-slow);
}

/* Related Content */
.related-content {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.related-content h3 {
  margin: 0 0 var(--space-lg) 0;
  color: var(--text-primary);
  font-size: 1.25rem;
}

.related-grid {
  display: grid;
  gap: var(--space-lg);
}

.related-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-fast);
}

.related-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg), var(--glow-primary);
}

.related-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: rgba(14, 165, 164, 0.1);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.related-title {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  line-height: 1.4;
}

.related-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.related-meta {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Resources Widget */
.resources-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.resources-widget h3 {
  margin: 0 0 var(--space-lg) 0;
  color: var(--text-primary);
  font-size: 1.25rem;
}

.resources-list {
  list-style: none;
}

.resources-list li {
  margin-bottom: var(--space-sm);
}

.resources-list a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.resources-list a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  padding-left: var(--space-lg);
}

.resources-list i {
  color: var(--primary);
  width: 20px;
  text-align: center;
}

/* Footer */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-primary);
  padding: var(--space-2xl) 0;
  margin-top: var(--space-2xl);
}

.footer-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-2xl);
}

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

.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.footer-column h4 {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: var(--space-sm);
}

.footer-column a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-size: 0.95rem;
}

.footer-column a:hover {
  color: var(--primary);
}

.footer-bottom {
  max-width: 1280px;
  margin: var(--space-xl) auto 0;
  padding: var(--space-lg) var(--space-lg) 0;
  border-top: 1px solid var(--border-primary);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-location {
  margin-top: var(--space-sm);
  font-weight: 500;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .post-grid {
    grid-template-columns: 1fr;
  }

  .toc-container {
    position: static;
    margin-bottom: var(--space-xl);
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .site-header .container {
    flex-direction: column;
    gap: var(--space-md);
  }

  .main-nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }

  .post-title {
    font-size: 2rem;
  }

  .post-controls {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-lg);
  }

  .audio-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .playground-content {
    grid-template-columns: 1fr;
  }

  .editor-container {
    border-right: none;
    border-bottom: 1px solid var(--border-primary);
  }

  .engagement-section {
    flex-direction: column;
    align-items: stretch;
  }

  .share-section {
    flex-direction: column;
    align-items: stretch;
  }

  .article-navigation {
    grid-template-columns: 1fr;
  }

  .author-bio {
    flex-direction: column;
    text-align: center;
  }

  .author-bio-image {
    margin: 0 auto;
  }

  .author-links {
    justify-content: center;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

@media (max-width: 480px) {
  .post-container {
    padding: var(--space-md);
  }

  .post-article {
    padding: var(--space-lg);
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .engagement-buttons {
    flex-direction: column;
  }

  .engagement-btn {
    width: 100%;
  }
}

/* Dark Mode for Code Blocks */
@media (prefers-color-scheme: dark) {
  .code-block-container {
    background: #0a0f1e;
  }

  .playground-editor {
    background: #0a0f1e;
  }
}

/* Print Styles */
@media print {
  .reading-progress-container,
  .reading-time-display,
  .post-controls,
  .engagement-section,
  .toc-container,
  .post-sidebar,
  .site-footer {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
    font-size: 12pt !important;
  }

  .post-article {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    color: black !important;
    page-break-after: avoid;
  }

  .code-block-container {
    background: #f5f5f5 !important;
    border: 1px solid #ddd !important;
    page-break-inside: avoid;
  }

  a {
    color: black !important;
    text-decoration: underline;
  }

  a::after {
    content: " (" attr(href) ")";
    font-size: 0.9em;
    font-weight: normal;
  }
}