/* ============================================
   QSecOps.org - Design System & Styles
   Quantum Security Operations Blog
   ============================================ */

/* ==========================================
   CSS Custom Properties (Design Tokens)
   ========================================== */
:root {
  /* Colors - Quantum Theme */
  --color-bg-primary: #0a0e17;
  --color-bg-secondary: #111827;
  --color-bg-tertiary: #1a1f35;
  --color-bg-card: rgba(17, 24, 39, 0.7);
  
  /* Accent Colors */
  --color-accent-primary: #00d4ff;
  --color-accent-secondary: #7c3aed;
  --color-accent-tertiary: #ec4899;
  --color-accent-glow: rgba(0, 212, 255, 0.3);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #00d4ff 100%);
  --gradient-hero: linear-gradient(180deg, rgba(10, 14, 23, 0) 0%, #0a0e17 100%);
  --gradient-card: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(0, 212, 255, 0.1) 100%);
  
  /* Text Colors */
  --color-text-primary: #f9fafb;
  --color-text-secondary: #9ca3af;
  --color-text-muted: #6b7280;
  --color-text-accent: #00d4ff;
  
  /* Border Colors */
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-hover: rgba(0, 212, 255, 0.3);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', var(--font-primary);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px var(--color-accent-glow);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-tooltip: 400;
}

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

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

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

a {
  color: var(--color-text-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-primary);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==========================================
   Layout Utilities
   ========================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-20) 0;
}

.grid {
  display: grid;
  gap: var(--space-6);
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================
   Animated Background
   ========================================== */
.quantum-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  background: var(--color-bg-primary);
}

.quantum-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(ellipse at 20% 30%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(236, 72, 153, 0.05) 0%, transparent 50%);
  animation: quantumPulse 20s ease-in-out infinite;
}

@keyframes quantumPulse {
  0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 1; }
  25% { transform: translate(2%, -2%) rotate(1deg); opacity: 0.8; }
  50% { transform: translate(-1%, 1%) rotate(-0.5deg); opacity: 1; }
  75% { transform: translate(1%, 2%) rotate(0.5deg); opacity: 0.9; }
}

.particles {
  position: absolute;
  width: 100%;
  height: 100%;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-accent-primary);
  border-radius: 50%;
  opacity: 0.6;
  animation: float 15s infinite ease-in-out;
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; top: 80%; animation-delay: 2s; }
.particle:nth-child(3) { left: 35%; top: 40%; animation-delay: 4s; }
.particle:nth-child(4) { left: 50%; top: 60%; animation-delay: 6s; }
.particle:nth-child(5) { left: 65%; top: 25%; animation-delay: 8s; }
.particle:nth-child(6) { left: 75%; top: 75%; animation-delay: 10s; }
.particle:nth-child(7) { left: 85%; top: 45%; animation-delay: 12s; }
.particle:nth-child(8) { left: 90%; top: 15%; animation-delay: 14s; }

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.6; }
  50% { transform: translateY(-30px) scale(1.5); opacity: 1; }
}

/* ==========================================
   Navigation
   ========================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) 0;
  transition: background var(--transition-base), backdrop-filter var(--transition-base);
}

.navbar.scrolled {
  background: rgba(10, 14, 23, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--text-lg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  padding: var(--space-2) var(--space-5);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  color: var(--color-text-primary);
  font-weight: 600;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: var(--color-text-primary);
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: transform var(--transition-fast);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--space-6);
    gap: var(--space-4);
    border-bottom: 1px solid var(--color-border);
  }
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--space-20);
  position: relative;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(124, 58, 237, 0.2);
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-accent-secondary);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease;
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-accent-secondary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-10);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.3s both;
}

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

/* ==========================================
   Buttons
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

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

/* ==========================================
   Cards
   ========================================== */
.card {
  background: var(--color-bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
}

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

.card-glass {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
  backdrop-filter: blur(20px);
}

/* Article Cards */
.article-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.article-card-image {
  width: 100%;
  height: 200px;
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  overflow: hidden;
  position: relative;
}

.article-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.article-card-category {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-accent-primary);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.article-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.article-card h3 a {
  color: var(--color-text-primary);
}

.article-card h3 a:hover {
  color: var(--color-accent-primary);
}

.article-card-excerpt {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.article-card-author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.article-card-author img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
}

/* ==========================================
   Featured Section
   ========================================== */
.featured-section {
  padding: var(--space-20) 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.section-header h2 {
  font-size: var(--text-3xl);
}

.section-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-accent-primary);
  font-weight: 500;
}

.section-link:hover {
  gap: var(--space-3);
}

.articles-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}

/* Featured Article (Large) */
.featured-article {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  padding: var(--space-8);
}

.featured-article .article-card-image {
  height: 100%;
  min-height: 300px;
  margin-bottom: 0;
}

.featured-article-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-article h3 {
  font-size: var(--text-3xl);
}

.featured-article .article-card-excerpt {
  font-size: var(--text-base);
}

@media (max-width: 900px) {
  .featured-article {
    grid-template-columns: 1fr;
  }
}

/* ==========================================
   Categories Section
   ========================================== */
.categories-section {
  padding: var(--space-16) 0;
  background: var(--color-bg-secondary);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.category-card {
  text-align: center;
  padding: var(--space-8);
  cursor: pointer;
}

.category-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-4);
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  transition: transform var(--transition-base);
}

.category-card:hover .category-icon {
  transform: scale(1.1);
}

.category-card h4 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.category-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ==========================================
   Contributors Section
   ========================================== */
.contributors-section {
  padding: var(--space-20) 0;
}

.contributors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}

.contributor-card {
  text-align: center;
  padding: var(--space-8);
}

.contributor-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto var(--space-4);
  border: 3px solid var(--color-border);
  overflow: hidden;
  position: relative;
}

.contributor-avatar::before {
  content: '';
  position: absolute;
  inset: -3px;
  background: var(--gradient-primary);
  border-radius: 50%;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.contributor-card:hover .contributor-avatar::before {
  opacity: 1;
}

.contributor-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contributor-card h4 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-1);
}

.contributor-role {
  font-size: var(--text-sm);
  color: var(--color-accent-primary);
  margin-bottom: var(--space-3);
}

.contributor-bio {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.contributor-social {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}

.contributor-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.contributor-social a:hover {
  background: var(--color-accent-primary);
  color: var(--color-bg-primary);
}

/* ==========================================
   Newsletter Section
   ========================================== */
.newsletter-section {
  padding: var(--space-20) 0;
  background: var(--color-bg-secondary);
}

.newsletter-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.newsletter-container h2 {
  margin-bottom: var(--space-4);
}

.newsletter-container p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
}

.newsletter-form {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.newsletter-form input {
  flex: 1;
  min-width: 200px;
  padding: var(--space-4);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--color-accent-primary);
}

.newsletter-form input::placeholder {
  color: var(--color-text-muted);
}

/* ==========================================
   Footer
   ========================================== */
.footer {
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  color: var(--color-text-secondary);
  margin: var(--space-4) 0;
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
}

.footer-column h5 {
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-column a {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

.footer-legal a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================
   Blog Page Specific
   ========================================== */
.page-header {
  padding: calc(var(--space-20) + 80px) 0 var(--space-12);
  text-align: center;
}

.page-header h1 {
  margin-bottom: var(--space-4);
}

.page-header p {
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.filter-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

.filter-tab {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

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

.filter-tab.active {
  color: var(--color-accent-primary);
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.3);
}

/* ==========================================
   Article Page Specific
   ========================================== */
.article-header {
  padding: calc(var(--space-20) + 80px) 0 var(--space-12);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.article-header .article-card-category {
  margin-bottom: var(--space-6);
}

.article-header h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--space-6);
}

.article-header .article-card-meta {
  justify-content: center;
}

.article-cover {
  max-width: 1000px;
  margin: 0 auto var(--space-12);
  border-radius: var(--radius-2xl);
  overflow: hidden;
}

.article-cover img {
  width: 100%;
  height: auto;
}

.article-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.article-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  font-size: var(--text-lg);
  line-height: 1.8;
}

.article-content h2 {
  font-size: var(--text-2xl);
  margin: var(--space-12) 0 var(--space-4);
}

.article-content h3 {
  font-size: var(--text-xl);
  margin: var(--space-8) 0 var(--space-3);
}

.article-content ul,
.article-content ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}

.article-content li {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  list-style: disc;
}

.article-content ol li {
  list-style: decimal;
}

.article-content blockquote {
  margin: var(--space-8) 0;
  padding: var(--space-6);
  background: var(--gradient-card);
  border-left: 4px solid var(--color-accent-primary);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

.article-content code {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  background: rgba(0, 212, 255, 0.1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-accent-primary);
}

.article-content pre {
  background: var(--color-bg-tertiary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-bottom: var(--space-6);
}

.article-content pre code {
  background: none;
  padding: 0;
}

/* Author Box */
.author-box {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-8);
  margin: var(--space-12) 0;
  align-items: center;
}

.author-box img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid var(--color-border);
}

.author-box-content h4 {
  margin-bottom: var(--space-1);
}

.author-box-content .contributor-role {
  margin-bottom: var(--space-2);
}

.author-box-content p {
  font-size: var(--text-sm) !important;
  margin-bottom: 0 !important;
}

/* Related Articles */
.related-articles {
  padding: var(--space-16) 0;
  margin-top: var(--space-12);
  border-top: 1px solid var(--color-border);
}

/* ==========================================
   Contributors Page Specific
   ========================================== */
.contribute-cta {
  text-align: center;
  padding: var(--space-16);
  margin-top: var(--space-12);
}

.contribute-cta h3 {
  margin-bottom: var(--space-4);
}

.contribute-cta p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================
   About Page Specific
   ========================================== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  padding: var(--space-12) 0;
}

.about-text h2 {
  margin-bottom: var(--space-6);
}

.about-text p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.about-image {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: var(--gradient-card);
  aspect-ratio: 4/3;
}

@media (max-width: 900px) {
  .about-content {
    grid-template-columns: 1fr;
  }
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  padding: var(--space-12) 0;
}

.value-card {
  text-align: center;
  padding: var(--space-8);
}

.value-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto var(--space-5);
  background: var(--gradient-card);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
}

.value-card h4 {
  margin-bottom: var(--space-3);
}

.value-card p {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

/* ==========================================
   Utility Classes
   ========================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

.hidden { display: none; }

@media (max-width: 768px) {
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }
  
  .section {
    padding: var(--space-12) 0;
  }
  
  .hero {
    min-height: auto;
    padding: calc(var(--space-20) + 60px) 0 var(--space-12);
  }
}