/* ============================================
   doyouknow.app — Complete Design System
   Mobile-first, RTL-ready, Dark Mode
   ============================================ */

/* Design Tokens */
:root {
  --color-primary-deep: #0F172A;
  --color-primary-accent: #F59E0B;
  --color-secondary-accent: #10B981;
  --color-bg-light: #FAFAFA;
  --color-surface-light: #FFFFFF;
  --color-text-primary: #1E293B;
  --color-text-secondary: #64748B;
  --color-text-muted: #94A3B8;
  --color-border-light: #E2E8F0;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  --color-warning: #F59E0B;
  --color-category-purple: #8B5CF6;
  --color-category-teal: #14B8A6;
  --color-category-rose: #F43F5E;
  --color-category-sky: #0EA5E9;
  --color-category-orange: #F97316;
  --color-category-olive: #65A30D;
  --color-category-indigo: #6366F1;
  --color-category-amber: #D97706;
  
  --font-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-ar: 'Cairo', 'Tajawal', 'Noto Sans Arabic', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  --shadow-glow: 0 0 20px rgba(245,158,11,0.3);
  
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
  
  --max-content: 1200px;
  --header-height: 64px;
  --header-height-mobile: 56px;
}

[data-theme="dark"] {
  --color-bg-light: #0F172A;
  --color-surface-light: #1E293B;
  --color-text-primary: #F1F5F9;
  --color-text-secondary: #94A3B8;
  --color-text-muted: #64748B;
  --color-border-light: #334155;
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.3);
}

/* Arabic overrides */
[lang="ar"] {
  --font-primary: var(--font-ar);
  direction: rtl;
  text-align: start;
  line-height: 1.75;
  letter-spacing: 0;
}

[lang="ar"] h1, [lang="ar"] h2, [lang="ar"] h3, [lang="ar"] h4 {
  font-family: 'Cairo', 'Tajawal', 'Noto Sans Arabic', sans-serif;
  line-height: 1.3;
}

[lang="ar"] body, [lang="ar"] p, [lang="ar"] li {
  font-family: 'Tajawal', 'Cairo', 'Noto Sans Arabic', sans-serif;
  line-height: 1.75;
}

[lang="ar"] .nav-links, [lang="ar"] .footer-links {
  direction: rtl;
}

[lang="ar"] .share-btn:first-child {
  order: 1;
}

[lang="ar"] .logo { margin-right: 0; margin-left: auto; }
[lang="ar"] .search-toggle { margin-left: 0; margin-right: auto; }

/* Base */
*, *::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-en);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg-light);
  transition: background var(--transition-base), color var(--transition-base);
  min-height: 100vh;
}

body.no-scroll { overflow: hidden; }

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-en);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-primary-deep);
  margin-bottom: var(--space-4);
}

[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3, [data-theme="dark"] h4 {
  color: #F8FAFC;
}

h1 { font-size: clamp(28px, 5vw, 48px); font-weight: 700; line-height: 1.1; }
h2 { font-size: clamp(24px, 4vw, 36px); font-weight: 600; line-height: 1.2; }
h3 { font-size: clamp(20px, 3vw, 28px); font-weight: 600; line-height: 1.25; }
h4 { font-size: clamp(18px, 2.5vw, 22px); font-weight: 600; line-height: 1.3; }

p { margin-bottom: var(--space-4); font-size: 1.05rem; line-height: 1.65; }

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

a:hover { color: #D97706; text-decoration: underline; }

img { max-width: 100%; height: auto; border-radius: var(--radius-lg); display: block; }

ul, ol { padding-left: var(--space-5); margin-bottom: var(--space-4); }
[lang="ar"] ul, [lang="ar"] ol { padding-left: 0; padding-right: var(--space-5); }

li { margin-bottom: var(--space-2); }

blockquote {
  border-left: 4px solid var(--color-primary-accent);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-light);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-5) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

[lang="ar"] blockquote {
  border-left: none;
  border-right: 4px solid var(--color-primary-accent);
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  font-style: normal;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: 10000;
  background: var(--color-primary-accent);
  color: white;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus { top: var(--space-4); outline: 3px solid white; outline-offset: 2px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-surface-light);
  border-bottom: 1px solid var(--color-border-light);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  height: var(--header-height);
  transition: background var(--transition-base), border-color var(--transition-base);
}

[data-theme="dark"] .site-header {
  background: rgba(15, 23, 42, 0.85);
  border-color: var(--color-border-light);
}

.header-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--space-5);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary-deep);
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover { text-decoration: none; color: var(--color-primary-deep); }

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--color-primary-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
}

.logo-icon::after {
  content: '';
  width: 10px;
  height: 10px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 0 8px 2px rgba(255,255,255,0.6);
}

.logo-text { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.01em; }
.logo-text .accent { color: var(--color-primary-accent); }

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex: 1;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  color: var(--color-text-primary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a:hover { color: var(--color-primary-accent); text-decoration: none; }

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary-accent);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
  border-radius: 2px;
}

.nav-links a:hover::after { transform: scaleX(1); }

/* Header controls */
.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.lang-switch, .theme-toggle, .search-toggle {
  background: none;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-en);
}

.lang-switch:hover, .theme-toggle:hover, .search-toggle:hover {
  border-color: var(--color-primary-accent);
  color: var(--color-primary-accent);
}

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  color: var(--color-text-primary);
}

.mobile-menu-btn svg { width: 24px; height: 24px; }

/* Mobile nav overlay */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
}

.mobile-nav-overlay.active { display: block; }

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  max-width: 85vw;
  background: var(--color-surface-light);
  z-index: 999;
  padding: var(--space-6) var(--space-5);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

[lang="ar"] .mobile-nav { right: auto; left: 0; transform: translateX(-100%); }

.mobile-nav.active { transform: translateX(0); }

.mobile-nav-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary);
  padding: var(--space-2);
}

[lang="ar"] .mobile-nav-close { right: auto; left: var(--space-4); }

.mobile-nav-links {
  list-style: none;
  padding: 0;
  margin: var(--space-7) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav-links a {
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: 1.1rem;
  display: block;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-light);
}

/* Hero section */
.hero-section {
  background: var(--color-surface-light);
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--space-9) var(--space-5) var(--space-7);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245,158,11,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-4);
  color: var(--color-primary-deep);
}

[data-theme="dark"] .hero-title { color: #F8FAFC; }

.hero-subtitle {
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-6);
  line-height: 1.6;
}

.hero-trending {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.trending-pill {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.trending-pill:hover {
  border-color: var(--color-primary-accent);
  color: var(--color-primary-accent);
  transform: translateY(-2px);
  text-decoration: none;
}

/* Newsletter signup */
.newsletter-signup {
  display: flex;
  gap: var(--space-3);
  max-width: 480px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.newsletter-signup input {
  flex: 1;
  min-width: 200px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-family: var(--font-en);
  background: var(--color-surface-light);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast);
}

.newsletter-signup input:focus {
  outline: none;
  border-color: var(--color-primary-accent);
  box-shadow: 0 0 0 3px rgba(245,158,11,0.15);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  font-family: var(--font-en);
  text-decoration: none;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary {
  background: var(--color-primary-accent);
  color: white;
  box-shadow: 0 2px 8px rgba(245,158,11,0.3);
}

.btn-primary:hover {
  background: #D97706;
  box-shadow: 0 4px 12px rgba(245,158,11,0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary-accent);
  border: 2px solid var(--color-primary-accent);
}

.btn-secondary:hover { background: var(--color-primary-accent); color: white; }

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

.btn-ghost:hover { background: var(--color-bg-light); color: var(--color-text-primary); }

.btn-whatsapp {
  background: #25D366;
  color: white;
  box-shadow: 0 2px 8px rgba(37,211,102,0.3);
}

.btn-whatsapp:hover { background: #1DA851; box-shadow: 0 4px 12px rgba(37,211,102,0.4); }

/* Category badge */
.category-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-uae { background: #E0F2FE; color: #0EA5E9; }
.badge-ksa { background: #DCFCE7; color: #16A34A; }
.badge-travel { background: #CCFBF1; color: #0D9488; }
.badge-tech { background: #DBEAFE; color: #2563EB; }
.badge-science { background: #EDE9FE; color: #7C3AED; }
.badge-history { background: #FEF3C7; color: #D97706; }
.badge-food { background: #FFE4E6; color: #E11D48; }
.badge-sports { background: #FFEDD5; color: #EA580C; }
.badge-culture { background: #E8E8E8; color: #525252; }
.badge-business { background: #E0E7FF; color: #4338CA; }
.badge-health { background: #D1FAE5; color: #059669; }
.badge-entertainment { background: #FCE7F3; color: #BE185D; }
.badge-islamic { background: #F0FDF4; color: #15803D; }

/* Article cards */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-5);
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

@media (max-width: 640px) {
  .article-grid { grid-template-columns: 1fr; padding: 0 var(--space-4); gap: var(--space-4); }
}

.article-card {
  background: var(--color-surface-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.article-card .card-image {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-border-light), var(--color-bg-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  position: relative;
  overflow: hidden;
}

.article-card .card-content {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-card .card-title {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.article-card .card-excerpt {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: var(--space-4);
  flex: 1;
}

.article-card .card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.article-card .card-meta .read-time::before {
  content: '•';
  margin: 0 var(--space-2);
}

/* Section headers */
.section-header {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-7) var(--space-5) var(--space-5);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.section-header h2 {
  font-size: clamp(22px, 3.5vw, 30px);
  margin: 0;
}

.section-header .view-all {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary-accent);
}

/* Content section */
.content-section {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-7) var(--space-5);
}

/* Article page */
.article-page {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-5);
}

.article-header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border-light);
}

.article-header .category-badge {
  margin-bottom: var(--space-3);
}

.article-header h1 {
  margin-bottom: var(--space-4);
  font-size: clamp(26px, 4.5vw, 42px);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.article-meta .author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.article-meta .author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-accent), #D97706);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.85rem;
}

.article-meta .updated {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Featured image */
.featured-image {
  width: 100%;
  aspect-ratio: 16/9;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, #E2E8F0, #F1F5F9);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Article body */
.article-body {
  font-size: 1.05rem;
  line-height: 1.7;
}

.article-body h2 {
  font-size: clamp(22px, 3vw, 28px);
  margin-top: var(--space-7);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-light);
}

.article-body h3 {
  font-size: clamp(18px, 2.5vw, 22px);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.article-body h4 {
  font-size: 1.1rem;
  margin-top: var(--space-5);
  margin-bottom: var(--space-3);
}

.article-body p { margin-bottom: var(--space-4); }

.article-body ul, .article-body ol { margin-bottom: var(--space-4); padding-left: var(--space-5); }
[lang="ar"] .article-body ul, [lang="ar"] .article-body ol { padding-left: 0; padding-right: var(--space-5); }

.article-body li { margin-bottom: var(--space-2); }

.article-body strong { color: var(--color-primary-deep); font-weight: 600; }
[data-theme="dark"] .article-body strong { color: #F8FAFC; }

.article-body a { color: var(--color-primary-accent); font-weight: 500; }

.article-body a:hover { color: #D97706; }

.article-body img {
  border-radius: var(--radius-lg);
  margin: var(--space-5) 0;
  box-shadow: var(--shadow-sm);
  max-width: 100%;
}

.article-body .image-caption {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: calc(-1 * var(--space-3));
  margin-bottom: var(--space-5);
}

/* Share bar */
.share-bar {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin: var(--space-6) 0;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid var(--color-border-light);
  background: var(--color-surface-light);
  color: var(--color-text-secondary);
  font-family: var(--font-en);
  text-decoration: none;
}

.share-btn:hover { text-decoration: none; transform: translateY(-1px); }

.share-btn svg { width: 18px; height: 18px; }

.share-btn.whatsapp { background: #25D366; color: white; border-color: #25D366; }
.share-btn.whatsapp:hover { background: #1DA851; }

.share-btn.twitter { background: #000; color: white; border-color: #000; }
.share-btn.twitter:hover { background: #333; }

.share-btn.facebook { background: #1877F2; color: white; border-color: #1877F2; }
.share-btn.facebook:hover { background: #166fe5; }

.share-btn.copy {
  background: var(--color-surface-light);
  border: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
}

.share-btn.copy:hover { background: var(--color-bg-light); color: var(--color-text-primary); }

.share-btn.copy.copied { background: var(--color-secondary-accent); color: white; border-color: var(--color-secondary-accent); }

/* Author bio box */
.author-bio {
  display: flex;
  gap: var(--space-5);
  padding: var(--space-6);
  background: var(--color-surface-light);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
  margin: var(--space-7) 0;
}

.author-bio .avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-accent), #D97706);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.author-bio .bio-content h4 {
  font-size: 1.1rem;
  margin-bottom: var(--space-2);
}

.author-bio .bio-content p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}

.author-bio .bio-content .more-articles {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary-accent);
}

/* FAQ section */
.faq-section {
  margin: var(--space-7) 0;
  padding: var(--space-6);
  background: var(--color-surface-light);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
}

.faq-section h2 {
  margin-bottom: var(--space-5);
  font-size: 1.5rem;
}

.faq-item {
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--space-4) 0;
}

.faq-item:last-child { border-bottom: none; }

.faq-item h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.faq-item h3 .toggle-icon {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item h3:hover { color: var(--color-primary-accent); }

.faq-item .faq-answer {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
  padding: 0;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding-top: var(--space-3);
}

.faq-item.open .toggle-icon { transform: rotate(180deg); }

/* Sources section */
.sources-section {
  margin: var(--space-7) 0;
  padding: var(--space-5);
  background: var(--color-bg-light);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
}

.sources-section h2 { font-size: 1.3rem; margin-bottom: var(--space-4); }

.sources-section ol { padding-left: var(--space-5); }
[lang="ar"] .sources-section ol { padding-left: 0; padding-right: var(--space-5); }

.sources-section li {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
  line-height: 1.5;
}

.sources-section li a { color: var(--color-primary-accent); font-weight: 500; word-break: break-all; }

/* Related articles */
.related-articles {
  margin: var(--space-7) 0;
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-border-light);
}

.related-articles h2 { font-size: 1.5rem; margin-bottom: var(--space-5); }

.related-articles .related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-4);
}

@media (max-width: 480px) {
  .related-articles .related-grid { grid-template-columns: 1fr; }
}

.related-articles .related-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface-light);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.related-articles .related-card:hover {
  border-color: var(--color-primary-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.related-articles .related-card .thumb {
  width: 80px;
  height: 60px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-border-light), var(--color-bg-light));
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

.related-articles .related-card .info h4 {
  font-size: 0.95rem;
  margin-bottom: var(--space-1);
  color: var(--color-text-primary);
  line-height: 1.3;
}

.related-articles .related-card .info .meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Newsletter CTA */
.newsletter-cta {
  background: var(--color-primary-deep);
  color: white;
  padding: var(--space-8) var(--space-5);
  text-align: center;
  margin: var(--space-7) 0;
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.newsletter-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245,158,11,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.newsletter-cta h2 {
  font-size: clamp(20px, 3.5vw, 28px);
  margin-bottom: var(--space-3);
  color: white;
  position: relative;
  z-index: 1;
}

.newsletter-cta p {
  font-size: 1rem;
  opacity: 0.85;
  max-width: 500px;
  margin: 0 auto var(--space-5);
  position: relative;
  z-index: 1;
}

.newsletter-cta .signup-form {
  display: flex;
  gap: var(--space-3);
  max-width: 480px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.newsletter-cta input {
  flex: 1;
  min-width: 220px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-family: var(--font-en);
  background: rgba(255,255,255,0.1);
  color: white;
  transition: border-color var(--transition-fast);
}

.newsletter-cta input::placeholder { color: rgba(255,255,255,0.5); }

.newsletter-cta input:focus {
  outline: none;
  border-color: var(--color-primary-accent);
  background: rgba(255,255,255,0.15);
}

.newsletter-cta .btn-primary {
  background: var(--color-primary-accent);
  color: white;
  border: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Breadcrumb */
.breadcrumb {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-4) var(--space-5) 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.breadcrumb a { color: var(--color-text-secondary); font-weight: 500; }
.breadcrumb a:hover { color: var(--color-primary-accent); }
.breadcrumb .current { color: var(--color-text-muted); font-weight: 400; }

.breadcrumb ol {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.breadcrumb li { margin: 0; }

.breadcrumb li:not(:last-child)::after {
  content: '>';
  margin-left: var(--space-2);
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

[lang="ar"] .breadcrumb li:not(:last-child)::after {
  content: '<';
  margin-left: 0;
  margin-right: var(--space-2);
}

/* Table of contents */
.toc {
  background: var(--color-surface-light);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
}

.toc h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc li { margin-bottom: var(--space-2); }

.toc a {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  display: block;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  border-left: 2px solid transparent;
  padding-left: var(--space-3);
}

[lang="ar"] .toc a {
  border-left: none;
  border-right: 2px solid transparent;
  padding-left: 0;
  padding-right: var(--space-3);
}

.toc a:hover {
  color: var(--color-primary-accent);
  border-left-color: var(--color-primary-accent);
  padding-left: var(--space-4);
  text-decoration: none;
}

[lang="ar"] .toc a:hover {
  border-left-color: transparent;
  border-right-color: var(--color-primary-accent);
  padding-left: 0;
  padding-right: var(--space-4);
}

.toc a.sub-item { padding-left: var(--space-6); font-size: 0.9rem; }
[lang="ar"] .toc a.sub-item { padding-left: 0; padding-right: var(--space-6); }

/* Footer */
.site-footer {
  background: var(--color-primary-deep);
  color: #94A3B8;
  padding: var(--space-9) var(--space-5) var(--space-6);
  margin-top: var(--space-8);
}

.footer-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-7);
}

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}

@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; gap: var(--space-5); }
}

.footer-brand .logo-text {
  color: white;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
  display: block;
}

.footer-brand .tagline {
  font-size: 0.9rem;
  opacity: 0.7;
  margin-bottom: var(--space-4);
}

.footer-brand .footer-newsletter {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.footer-brand .footer-newsletter input {
  flex: 1;
  min-width: 160px;
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.05);
  color: white;
  font-size: 0.9rem;
}

.footer-brand .footer-newsletter input::placeholder { color: rgba(255,255,255,0.4); }

.footer-brand .footer-newsletter .btn {
  padding: var(--space-2) var(--space-4);
  font-size: 0.85rem;
}

.footer-column h4 {
  color: white;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  color: #94A3B8;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer-links a:hover { color: white; text-decoration: none; }

.footer-bottom {
  max-width: var(--max-content);
  margin: var(--space-7) auto 0;
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.85rem;
}

.footer-bottom .copyright { opacity: 0.6; }

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

.footer-bottom .social-links a {
  color: #94A3B8;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer-bottom .social-links a:hover { color: white; }

/* Category page */
.category-header {
  background: var(--color-surface-light);
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--space-7) var(--space-5) var(--space-5);
  text-align: center;
}

.category-header h1 {
  font-size: clamp(28px, 5vw, 42px);
  margin-bottom: var(--space-3);
}

.category-header .category-description {
  max-width: 640px;
  margin: 0 auto;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
}

.category-header .article-count {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}

/* Category pills on homepage */
.category-explorer {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--space-5) var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

.category-tile {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-fast);
  min-width: 140px;
}

.category-tile:hover {
  border-color: var(--color-primary-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.category-tile .tile-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.category-tile .tile-info h4 {
  font-size: 0.85rem;
  margin: 0;
  color: var(--color-text-primary);
}

.category-tile .tile-info span {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* About page */
.about-page {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-5);
}

.about-page .about-hero {
  text-align: center;
  padding: var(--space-7) 0;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-6);
}

.about-page .about-hero h1 {
  font-size: clamp(28px, 5vw, 42px);
  margin-bottom: var(--space-4);
}

.about-page .about-hero p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.team-card {
  text-align: center;
  padding: var(--space-5);
  background: var(--color-surface-light);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
}

.team-card .avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-accent), #D97706);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 2rem;
  margin: 0 auto var(--space-4);
}

.team-card h4 { font-size: 1.1rem; margin-bottom: var(--space-1); }
.team-card .role { font-size: 0.85rem; color: var(--color-primary-accent); font-weight: 600; margin-bottom: var(--space-2); }
.team-card .bio { font-size: 0.9rem; color: var(--color-text-secondary); line-height: 1.5; }

/* Contact page */
.contact-page {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-5);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.contact-form label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.contact-form input,
.contact-form textarea {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-en);
  background: var(--color-surface-light);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary-accent);
  box-shadow: 0 0 0 3px rgba(245,158,11,0.15);
}

.contact-form textarea { min-height: 150px; resize: vertical; }

/* Responsive */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .mobile-menu-btn { display: block; }
  .header-inner { padding: 0 var(--space-4); }
  .article-page { padding: var(--space-5) var(--space-4); }
  .content-section { padding: var(--space-5) var(--space-4); }
  .hero-section { padding: var(--space-7) var(--space-4) var(--space-5); }
  .section-header { padding: var(--space-6) var(--space-4) var(--space-4); }
  .site-footer { padding: var(--space-7) var(--space-4) var(--space-5); }
  .breadcrumb { padding: var(--space-3) var(--space-4) 0; }
  .category-header { padding: var(--space-6) var(--space-4) var(--space-4); }
  .author-bio { flex-direction: column; text-align: center; }
  .author-bio .avatar { margin: 0 auto; }
  .share-bar { justify-content: center; }
  .related-articles .related-grid { grid-template-columns: 1fr; }
  .newsletter-signup { flex-direction: column; align-items: stretch; }
  .newsletter-signup input { width: 100%; }
  .newsletter-cta .signup-form { flex-direction: column; align-items: stretch; }
  .newsletter-cta .signup-form input { width: 100%; }
  .footer-brand .footer-newsletter { flex-direction: column; }
  .toc { margin: 0 calc(-1 * var(--space-4)) var(--space-5); border-radius: 0; border-left: none; border-right: none; }
  .header-controls .search-toggle { display: none; }
  .lang-switch { padding: var(--space-2); font-size: 0.75rem; }
}

@media (max-width: 480px) {
  .article-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 28px; }
  .hero-subtitle { font-size: 15px; }
  .article-header h1 { font-size: 24px; }
  .footer-inner { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .category-explorer { flex-direction: column; align-items: stretch; }
  .category-tile { width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--color-primary-accent);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .site-header, .share-bar, .newsletter-cta, .site-footer, .related-articles, .toc, .mobile-menu-btn, .theme-toggle, .lang-switch { display: none !important; }
  .article-page { max-width: 100%; padding: 0; }
  body { background: white; color: black; }
  a { color: black; text-decoration: underline; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg-light); }
::-webkit-scrollbar-thumb { background: var(--color-border-light); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* Selection */
::selection { background: rgba(245,158,11,0.2); color: var(--color-text-primary); }
/* Newsletter capture is intentionally hidden until a consent-aware provider is connected. */
.newsletter-signup,
.footer-newsletter,
.signup-form { display: none !important; }