/* ===== Enhanced Design System ===== */
:root {
  /* Typography Scale */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Enhanced Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* Enhanced Spacing Scale */
  --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;
  
  /* Dark theme - Enhanced */
  --bg: #0a0e13;
  --bg-soft: #151b26;
  --bg-muted: #1a2332;
  --surface: #1e2936;
  --surface-elevated: #283342;
  --card: #243044;
  --card-elevated: #2a3651;
  --text: #f1f5f9;
  --text-soft: #cbd5e1;
  --text-muted: #94a3b8;
  --muted: #64748b;
  --border: #334155;
  --border-soft: #475569;
  
  /* Enhanced Color Palette */
  --primary: #3b82f6;
  --primary-dark: #1e40af;
  --primary-light: #60a5fa;
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;
  
  --accent: #8b5cf6;
  --accent-dark: #7c3aed;
  --accent-light: #a78bfa;
  --accent-50: #faf5ff;
  --accent-100: #f3e8ff;
  --accent-200: #e9d5ff;
  --accent-500: #8b5cf6;
  --accent-600: #7c3aed;
  --accent-700: #6d28d9;
  
  --emerald: #10b981;
  --emerald-dark: #059669;
  --emerald-light: #34d399;
  
  --amber: #f59e0b;
  --amber-dark: #d97706;
  --amber-light: #fbbf24;
  
  --rose: #f43f5e;
  --rose-dark: #e11d48;
  --rose-light: #fb7185;
  
  --success: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;
  
  /* Enhanced Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  
  /* Glass Morphism */
  --glass-bg: rgba(30, 41, 54, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  
  /* Enhanced Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-warm: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  --gradient-cool: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
  --gradient-sunset: linear-gradient(135deg, #ff9a9e 0%, #fecfef 50%, #fecfef 100%);
  --gradient-ocean: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-forest: linear-gradient(135deg, #134e5e 0%, #71b280 100%);
  --gradient-bg: radial-gradient(ellipse at top, #0f1419 0%, #1a1f2e 100%);
  --gradient-surface: linear-gradient(145deg, #1e2936 0%, #243044 100%);
  
  /* Enhanced Border Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius: 16px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;
  
  /* Enhanced Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Animation Durations */
  --duration-150: 150ms;
  --duration-200: 200ms;
  --duration-300: 300ms;
  --duration-500: 500ms;
  --duration-700: 700ms;
  --duration-1000: 1000ms;
}

/* Light theme overrides - Enhanced */
html.light, body.light {
  --bg: #fefefe;
  --bg-soft: #f8fafc;
  --bg-muted: #f1f5f9;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  --card: #ffffff;
  --card-elevated: #ffffff;
  --text: #0f172a;
  --text-soft: #334155;
  --text-muted: #64748b;
  --muted: #94a3b8;
  --border: #e2e8f0;
  --border-soft: #cbd5e1;
  
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --accent: #7c3aed;
  --accent-dark: #6d28d9;
  --accent-light: #8b5cf6;
  --success: #059669;
  --warn: #d97706;
  --danger: #dc2626;
  --info: #0891b2;
  
  /* Light theme shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Light theme glass */
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
  
  --gradient-bg: radial-gradient(ellipse at top, #fefefe 0%, #f8fafc 100%);
  --gradient-surface: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
}

/* Enhanced Base Styles */
* { 
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  /* Remove blue tap highlight on mobile */
  -webkit-tap-highlight-color: transparent !important;
  -webkit-touch-callout: none !important;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

*::before,
*::after {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent !important;
}

/* Global anti-highlight rule for all interactive elements */
a, button, input, select, textarea, .brand, .icon-btn, [onclick], [ontouch] {
  -webkit-tap-highlight-color: transparent !important;
  -webkit-touch-callout: none !important;
  -webkit-user-drag: none !important;
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  appearance: none !important;
}

html {
  width: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
  font-size: 16px;
}

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

body {
  width: 100%;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  font-family: 'Cairo', 'Segoe UI', Tahoma, Geneva, Verdana, system-ui, -apple-system, sans-serif;
  font-weight: 400;
  line-height: var(--leading-relaxed);
  letter-spacing: 0.01em;
  background: var(--gradient-bg);
  color: var(--text);
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv03', 'cv04', 'cv11';
}

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Cairo', system-ui, sans-serif;
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 0;
}

h1 {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  letter-spacing: -0.03em;
}

h2 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
}

h3 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
}

h4 {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

h5 {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

h6 {
  font-size: var(--font-size-base);
  font-weight: 600;
}

p {
  line-height: var(--leading-relaxed);
  color: var(--text-soft);
  margin: 0;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
  /* Remove blue tap highlight on mobile */
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

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

/* Enhanced container with better responsive design */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* ===== Enhanced Navbar ===== */
.site-header { 
  position: sticky; 
  top: 0; 
  z-index: 100; 
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.05), transparent);
  pointer-events: none;
  opacity: 0;
  transition: var(--transition);
}

.site-header:hover::before {
  opacity: 1;
}

body.light .site-header {
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
}

.navbar {
  display: flex; 
  align-items: center; 
  justify-content: space-between;
  gap: var(--space-4); 
  padding: var(--space-4) 0;
  position: relative;
}

/* Enhanced Brand */
.brand { 
  display: flex; 
  align-items: center; 
  gap: var(--space-3); 
  text-decoration: none; 
  color: var(--text); 
  font-weight: 800;
  font-size: var(--font-size-lg);
  transition: var(--transition);
  position: relative;
  z-index: 1;
  /* Remove blue tap highlight on mobile */
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

.brand:hover {
  transform: translateY(-1px);
}

.brand .logo {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  position: relative;
  clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
  border-radius: var(--radius-sm);
  transform: translateY(2px);
  box-shadow: var(--shadow-md);
  transition: var(--transition-bounce);
  overflow: hidden;
}

.brand:hover .logo {
  transform: translateY(-1px) scale(1.05) rotateY(15deg);
  box-shadow: var(--shadow-xl);
}

.brand .logo::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60%;
  height: 60%;
  background: var(--surface);
  transform: translate(-50%, -30%) scale(0.8);
  clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
  transition: var(--transition);
}

.brand .logo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, transparent 40%, rgba(255,255,255,0.4) 50%, transparent 60%, transparent 100%);
  animation: shine-diagonal 4s ease-in-out infinite;
}

@keyframes shine-diagonal {
  0%, 90%, 100% { 
    opacity: 0; 
    transform: translateX(-100%) translateY(-100%);
  }
  50% { 
    opacity: 1; 
    transform: translateX(100%) translateY(100%);
  }
}

/* Enhanced Navigation Actions */
.nav-actions { 
  display: flex; 
  align-items: center; 
  gap: var(--space-3); 
}

.icon-btn { 
  position: relative;
  border: 1px solid var(--border); 
  background: var(--surface); 
  color: var(--text); 
  border-radius: var(--radius-md); 
  padding: var(--space-3) var(--space-4); 
  cursor: pointer; 
  box-shadow: var(--shadow-sm); 
  transition: var(--transition-bounce);
  font-weight: 600;
  font-size: var(--font-size-sm);
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  /* Remove blue tap highlight on mobile */
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

.icon-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
  z-index: -1;
}

.icon-btn:hover { 
  border-color: var(--primary); 
  transform: translateY(-2px) scale(1.02); 
  box-shadow: var(--shadow-lg);
  color: white;
}

.icon-btn:hover::before {
  opacity: 1;
}

.icon-btn:active {
  transform: translateY(0) scale(0.98);
  transition: var(--transition-fast);
}

/* Mobile navbar enhancements */
@media (max-width: 768px) {
  .navbar {
    padding: var(--space-3) 0;
  }
  
  .brand {
    font-size: var(--font-size-base);
  }
  
  .brand .logo {
    width: 36px;
    height: 36px;
  }
  
  .icon-btn {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-xs);
  }
  
  /* Comprehensive mobile tap highlight removal */
  * {
    -webkit-tap-highlight-color: transparent !important;
    -webkit-touch-callout: none !important;
    -webkit-user-select: none !important;
    user-select: none !important;
  }
  
  /* Remove blue focus box shadows on mobile */
  *:focus, *:active, *:hover {
    -webkit-tap-highlight-color: transparent !important;
    outline: none !important;
  }
  
  /* Override any blue box shadows specifically */
  input:focus, select:focus, textarea:focus, button:focus {
    box-shadow: none !important;
    -webkit-tap-highlight-color: transparent !important;
    outline: none !important;
  }
  
  /* Allow text selection where needed */
  input, textarea, p, span {
    -webkit-user-select: text !important;
    user-select: text !important;
  }
}

/* ===== Enhanced Hero Section ===== */
.hero { 
  width: 100%;
  padding: var(--space-20) 0 var(--space-12); 
  margin: 0;
  overflow: hidden;
  position: relative;
  /* Light by default; dark override below */
  background: 
    radial-gradient(1200px 300px at 20% -100px, rgba(59, 130, 246, 0.08), transparent 70%),
    radial-gradient(1000px 400px at 80% -150px, rgba(139, 92, 246, 0.06), transparent 80%),
    radial-gradient(800px 200px at 50% -50px, rgba(16, 185, 129, 0.05), transparent 60%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.95) 100%);
}

/* Dark theme override for hero background */
html:not(.light) .hero {
  background:
    radial-gradient(1200px 300px at 20% -100px, rgba(59, 130, 246, 0.04), transparent 70%),
    radial-gradient(1000px 400px at 80% -150px, rgba(139, 92, 246, 0.04), transparent 80%),
    radial-gradient(800px 200px at 50% -50px, rgba(16, 185, 129, 0.03), transparent 60%),
    linear-gradient(145deg, #1e2936 0%, #243044 100%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    linear-gradient(45deg, transparent 30%, rgba(59, 130, 246, 0.03) 50%, transparent 70%),
    linear-gradient(-45deg, transparent 30%, rgba(139, 92, 246, 0.03) 50%, transparent 70%);
  animation: hero-shimmer 8s ease-in-out infinite;
}

@keyframes hero-shimmer {
  0%, 100% { 
    opacity: 0.3;
    transform: translateX(-50px);
  }
  50% { 
    opacity: 0.8;
    transform: translateX(50px);
  }
}

.hero-wrap { 
  position: relative;
  z-index: 1;
  display: grid; 
  gap: var(--space-8);
  width: 100%;
  max-width: 100%;
  padding: 0 var(--space-4);
  text-align: center;
}

/* Enhanced Hero Content */
.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

/* Enhanced Hero Typography */
.hero h1 { 
  margin: 0 0 var(--space-6) 0; 
  font-size: clamp(2.5rem, 5vw, 4rem); 
  font-weight: 900; 
  letter-spacing: -0.02em;
  line-height: var(--leading-tight);
  color: var(--text);
  position: relative;
  animation: hero-title-float 6s ease-in-out infinite;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.hero h1 .highlight::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  opacity: 0.6;
  animation: underline-pulse 3s ease-in-out infinite;
}

@keyframes hero-title-float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

@keyframes underline-pulse {
  0%, 100% { 
    width: 80%;
    opacity: 0.6;
  }
  50% { 
    width: 100%;
    opacity: 1;
  }
}

.lead { 
  margin: 0 0 var(--space-8) 0; 
  color: var(--text-soft); 
  font-size: var(--font-size-xl);
  line-height: var(--leading-relaxed);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 400;
  opacity: 0;
  animation: fade-in-up 1s ease-out 0.3s forwards;
}

/* Enhanced Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
  margin: var(--space-8) 0;
  opacity: 0;
  animation: fade-in-up 1s ease-out 0.6s forwards;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  transition: var(--transition);
  text-align: right;
  box-shadow: var(--shadow-lg);
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.95);
}

.feature-icon {
  font-size: var(--font-size-3xl);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
}

.feature-text h4 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: #8324d2;
  margin: 0 0 var(--space-1) 0;
}

.feature-text p {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin: 0;
  line-height: var(--leading-relaxed);
}

/* Compact Search Section */
.search-section-compact {
  max-width: 600px;
  margin: 0 auto;
  opacity: 0;
  animation: fade-in-up 1s ease-out 0.9s forwards;
}

.search-section-compact .search-wrapper {
  position: relative;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-2xl);
  padding: var(--space-1);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-xl);
  transition: var(--transition);
}

.search-section-compact .search-wrapper:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-2xl);
}

.search-section-compact .search-icon {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--font-size-lg);
  color: var(--text-muted);
  pointer-events: none;
  z-index: 2;
}

.search-section-compact .search-input {
  width: 100%;
  padding: var(--space-4) var(--space-12) var(--space-4) var(--space-4);
  border-radius: var(--radius-2xl);
  border: none;
  background: transparent;
  color: var(--text);
  outline: none;
  font-size: var(--font-size-lg);
  transition: var(--transition);
}

.search-section-compact .search-input:focus {
  background: rgba(248, 250, 252, 0.8);
}

.search-section-compact .search-input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.search-section-compact .search-clear {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  background: var(--muted);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: var(--transition);
  z-index: 2;
}

.search-section-compact .search-clear:hover {
  background: var(--danger);
  transform: translateY(-50%) scale(1.1);
}



/* ===== Enhanced Tools Section ===== */
#tools {
  position: relative;
  background: 
    linear-gradient(135deg, rgba(248, 250, 252, 0.9) 0%, rgba(241, 245, 249, 0.95) 50%, rgba(255, 255, 255, 0.98) 100%),
    radial-gradient(1000px 500px at 20% 20%, rgba(59, 130, 246, 0.05), transparent 70%),
    radial-gradient(800px 400px at 80% 80%, rgba(139, 92, 246, 0.04), transparent 60%);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
  padding: var(--space-12) var(--space-4) var(--space-16) var(--space-4);
  margin-top: var(--space-8);
  border: 1px solid rgba(59, 130, 246, 0.1);
  border-bottom: none;
}

#tools::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    linear-gradient(45deg, transparent 30%, rgba(59, 130, 246, 0.05) 50%, transparent 70%),
    linear-gradient(-45deg, transparent 30%, rgba(139, 92, 246, 0.05) 50%, transparent 70%);
  pointer-events: none;
  border-radius: inherit;
}

.tools-header {
  text-align: center;
  margin-bottom: var(--space-8);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.tools-header .section-title {
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--text-soft);
  line-height: var(--leading-relaxed);
  margin: 0;
  font-weight: 400;
}

/* Category Filter Tabs */
.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-8);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.category-filter::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(300px 150px at 50% 50%, rgba(59, 130, 246, 0.03), transparent 70%);
  pointer-events: none;
}

.filter-btn {
  position: relative;
  z-index: 1;
  padding: var(--space-3) var(--space-6);
  border: 2px solid rgba(59, 130, 246, 0.2);
  background: rgba(248, 250, 252, 0.8);
  color: var(--text-soft);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.025em;
  backdrop-filter: blur(8px);
}

.filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background: rgba(59, 130, 246, 0.1);
}

.filter-btn.active {
  background: var(--gradient-primary);
  color: white;
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px) scale(1.05);
}

/* Search Section in Tools Area */
.search-section-tools {
  max-width: 600px;
  margin: var(--space-8) auto var(--space-8) auto;
  position: relative;
  z-index: 1;
}

.search-section-tools .search-wrapper {
  position: relative;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-2xl);
  padding: var(--space-1);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.search-section-tools .search-wrapper:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

.search-section-tools .search-icon {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--font-size-lg);
  color: var(--text-muted);
  pointer-events: none;
  z-index: 2;
}

.search-section-tools .search-input {
  width: 100%;
  padding: var(--space-4) var(--space-12) var(--space-4) var(--space-4);
  border-radius: var(--radius-2xl);
  border: none;
  background: transparent;
  color: var(--text);
  outline: none;
  font-size: var(--font-size-lg);
  transition: var(--transition);
  font-weight: 500;
}

.search-section-tools .search-input:focus {
  background: rgba(248, 250, 252, 0.9);
}

.search-section-tools .search-input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.search-section-tools .search-clear {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  background: var(--muted);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: var(--transition);
  z-index: 2;
}

.search-section-tools .search-clear:hover {
  background: var(--danger);
}

/* ===== Scroll to Top Button ===== */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-bounce);
  opacity: 0;
  visibility: hidden;
  transform: translateY(100px) scale(0.8);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  /* Remove tap highlight */
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  user-select: none;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.scroll-to-top:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: var(--shadow-2xl);
  background: var(--gradient-accent);
}

.scroll-to-top:active {
  transform: translateY(-2px) scale(1.05);
  transition: var(--transition-fast);
}

/* White CSS triangle - Always visible */
.scroll-to-top::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 14px solid white;
  opacity: 1;
  transition: var(--transition);
}

/* Enhanced visual feedback on hover - triangle scales up */
.scroll-to-top:hover::after {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.2);
}

/* Light theme adjustments */
html.light .scroll-to-top {
  background: var(--gradient-primary);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: var(--shadow-xl);
}

html.light .scroll-to-top:hover {
  box-shadow: var(--shadow-2xl);
}

/* Mobile optimizations */
@media (max-width: 768px) {
  .scroll-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: var(--font-size-lg);
  }
}

/* Animation for button appearance */
@keyframes bounce-in {
  0% {
    opacity: 0;
    transform: translateY(100px) scale(0.3);
  }
  50% {
    opacity: 1;
    transform: translateY(-10px) scale(1.05);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.scroll-to-top.animate-in {
  animation: bounce-in 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

/* Dark theme overrides for Tools & Search */
html:not(.light) #tools {
  background:
    linear-gradient(135deg, rgba(24, 32, 44, 0.95) 0%, rgba(18, 24, 38, 0.98) 100%),
    radial-gradient(1000px 500px at 20% 20%, rgba(59, 130, 246, 0.04), transparent 70%),
    radial-gradient(800px 400px at 80% 80%, rgba(139, 92, 246, 0.03), transparent 60%);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-bottom: none;
}

html:not(.light) #tools::before {
  background:
    linear-gradient(45deg, transparent 30%, rgba(59, 130, 246, 0.04) 50%, transparent 70%),
    linear-gradient(-45deg, transparent 30%, rgba(139, 92, 246, 0.04) 50%, transparent 70%);
}

html:not(.light) .category-filter {
  background: rgba(36, 48, 68, 0.82);
  border: 1px solid rgba(148, 163, 184, 0.15);
  box-shadow: var(--shadow-md);
}

html:not(.light) .filter-btn {
  background: rgba(36, 48, 68, 0.7);
  color: var(--text-soft);
  border-color: rgba(148, 163, 184, 0.2);
}

html:not(.light) .filter-btn:hover {
  background: rgba(59, 130, 246, 0.12);
  color: var(--primary);
  border-color: var(--primary);
}

html:not(.light) .search-section-tools .search-wrapper {
  background: rgba(30, 41, 54, 0.85);
  border-color: rgba(148, 163, 184, 0.15);
  box-shadow: var(--shadow-md);
}

html:not(.light) .search-section-tools .search-input:focus {
  background: rgba(15, 23, 42, 0.35);
}

html:not(.light) .search-section-compact .search-wrapper {
  background: rgba(30, 41, 54, 0.8);
  border-color: rgba(148, 163, 184, 0.15);
  box-shadow: var(--shadow-md);
}

html:not(.light) .search-section-compact .search-input:focus {
  background: rgba(15, 23, 42, 0.35);
}

/* ===== No Results Message ===== */
.no-results {
  display: none;
  text-align: center;
  padding: var(--space-16) var(--space-8);
  margin-top: var(--space-8);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.no-results::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(400px 200px at 50% 50%, rgba(59, 130, 246, 0.03), transparent 70%);
  pointer-events: none;
}

.no-results-content {
  position: relative;
  z-index: 1;
  max-width: 500px;
  margin: 0 auto;
}

.no-results-icon {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-4);
  opacity: 0.7;
}

.no-results h3 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text);
  margin: 0 0 var(--space-3) 0;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.no-results p {
  font-size: var(--font-size-lg);
  color: var(--text-soft);
  line-height: var(--leading-relaxed);
  margin: 0 0 var(--space-6) 0;
}

.clear-search-btn {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.025em;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.clear-search-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: translateX(-100%);
  transition: var(--transition);
}

.clear-search-btn:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-xl);
}

.clear-search-btn:hover::before {
  transform: translateX(100%);
}

/* ===== Simplified Card Animations ===== */
@keyframes card-fade-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card.fade-in {
  animation: card-fade-in 0.3s ease-out forwards;
}

/* Remove excessive staggered animation delays */

/* ===== Mobile optimizations for new features ===== */
@media (max-width: 480px) {
  .no-results {
    padding: var(--space-8) var(--space-4);
    margin-top: var(--space-6);
  }
  
  .no-results-icon {
    font-size: var(--font-size-4xl);
  }
  
  .no-results h3 {
    font-size: var(--font-size-xl);
  }
  
  .no-results p {
    font-size: var(--font-size-base);
  }
  
  .clear-search-btn {
    width: 100%;
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
  }
}
@media (max-width: 768px) {
  .hero {
    padding: var(--space-16) 0 var(--space-8);
  }
  
  .hero-wrap {
    gap: var(--space-6);
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin: var(--space-6) 0;
  }
  
  .feature-item {
    padding: var(--space-4);
    text-align: center;
    flex-direction: column;
  }
  
  .feature-icon {
    font-size: var(--font-size-2xl);
    width: 50px;
    height: 50px;
  }
  
  .search-section-tools .search-input {
    padding: var(--space-4) var(--space-10) var(--space-4) var(--space-4);
    font-size: var(--font-size-base);
  }
  
  .search-section-tools .search-icon {
    right: var(--space-3);
    font-size: var(--font-size-base);
  }
  
  #tools {
    padding: var(--space-8) var(--space-3) var(--space-12) var(--space-3);
    margin-top: var(--space-6);
  }
  
  .category-filter {
    padding: var(--space-3);
    gap: var(--space-2);
    margin-bottom: var(--space-6);
  }
  
  .filter-btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
  }
  
  .tools-header {
    margin-bottom: var(--space-6);
  }
  
  .section-description {
    font-size: var(--font-size-base);
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--space-12) 0 var(--space-8);
  }
  
  .hero h1 {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }
  
  .hero h1 .highlight::after {
    width: 60%;
  }
  
  .lead {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-6);
  }
  
  .search-header h3 {
    font-size: var(--font-size-xl);
  }
  
  .search-header p {
    font-size: var(--font-size-base);
  }
  
  .search-suggestions {
    gap: var(--space-1);
  }
  
  .suggestion-tag {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
  }
  
  .category-filter {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-btn {
    text-align: center;
    justify-content: center;
  }
  
  .search-section-tools {
    margin: var(--space-6) auto var(--space-6) auto;
  }
  
  .search-section-tools .search-input {
    padding: var(--space-3) var(--space-10) var(--space-3) var(--space-3);
    font-size: var(--font-size-sm);
  }
  
  .search-section-tools .search-icon {
    right: var(--space-3);
    font-size: var(--font-size-base);
  }
  
  .search-section-tools .search-clear {
    left: var(--space-2);
    width: 20px;
    height: 20px;
    font-size: var(--font-size-xs);
  }
}

/* ===== Enhanced Grid & Cards Section ===== */
.section-title { 
  margin: var(--space-8) 0 var(--space-6); 
  font-size: var(--font-size-3xl); 
  font-weight: 800;
  color: var(--text);
  text-align: center;
  position: relative;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  opacity: 0.7;
}

.grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); 
  gap: var(--space-6); 
  position: relative;
}
.card {
  display: grid; 
  gap: var(--space-4); 
  grid-template-rows: auto auto 1fr auto; 
  text-decoration: none; 
  color: var(--text);
  background: var(--gradient-surface); 
  border: 1px solid var(--glass-border); 
  border-radius: var(--radius-lg);
  padding: var(--space-6); 
  box-shadow: var(--shadow-md); 
  position: relative; 
  overflow: hidden;
  transition: var(--transition);
  backdrop-filter: blur(12px);
  transform-style: preserve-3d;
}

/* Card gradient background overlay */
.card::before { 
  content: ""; 
  position: absolute; 
  inset: 0; 
  background: 
    radial-gradient(600px 200px at 50% -100px, rgba(59, 130, 246, 0.05), transparent 70%),
    radial-gradient(400px 300px at 100% 50%, rgba(139, 92, 246, 0.08), transparent 60%);
  pointer-events: none; 
  opacity: 0;
  transition: var(--transition);
  border-radius: inherit;
}

/* Card shimmer effect */
.card::after { 
  content: ""; 
  position: absolute; 
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 70%
  );
  pointer-events: none; 
  opacity: 0;
  transition: var(--transition-slow);
  transform: translateX(-100%) translateY(-100%);
}

.card:hover {
  transform: translateY(-8px) rotateX(2deg) rotateY(2deg); 
  border-color: var(--primary); 
  box-shadow: 
    var(--shadow-2xl),
    0 0 40px rgba(59, 130, 246, 0.2);
}

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

.card:hover::after {
  opacity: 1;
  transform: translateX(100%) translateY(100%);
}

/* Enhanced Card Content */
.card-emoji { 
  font-size: 2.5rem;
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.card:hover .card-emoji {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-lg);
}

.card h3 { 
  margin: var(--space-2) 0 0; 
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text);
  line-height: var(--leading-snug);
  transition: var(--transition);
}

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

.card p { 
  margin: 0; 
  color: var(--text-soft); 
  min-height: 60px;
  line-height: var(--leading-relaxed);
  font-size: var(--font-size-base);
}

/* Enhanced Meta Tags */
.meta { 
  display: flex; 
  gap: var(--space-2); 
  flex-wrap: wrap; 
  margin-top: auto;
}

.meta .chip { 
  font-size: var(--font-size-xs); 
  padding: var(--space-1) var(--space-3);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition);
}

.meta .chip:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-1px) scale(1.05);
}

/* Enhanced Card Link */
.card-link { 
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3); 
  color: var(--primary); 
  font-weight: 700;
  font-size: var(--font-size-sm);
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.card-link::after {
  content: '←';
  transition: var(--transition);
  transform: rotate(180deg);
}

.card:hover .card-link {
  color: var(--primary-dark);
  transform: translateX(-4px);
}

.card:hover .card-link::after {
  transform: rotate(180deg) translateX(4px);
}

/* Card loading animation */
.card {
  animation: card-fade-in 0.6s ease-out forwards;
}

@keyframes card-fade-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* تحسين الاستجابة للهاتف */
@media (max-width: 480px){
  .hero { padding: 40px 0 20px; }
  .navbar { padding: 12px 0; }
  .grid { grid-template-columns: 1fr; gap: 16px; }
  .card { padding: 16px; border-radius: 14px; }
  .card-emoji { font-size: 28px; }
  .card h3 { font-size: 1.1rem; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  
  /* تحسين النماذج على الهواتف */
  .form .row { grid-template-columns: 1fr; gap: 8px; }
  .form .row > div:first-child { text-align: right; }
  .form input, .form select, .form textarea { 
    min-height: 48px; 
    font-size: 16px; /* منع التكبير التلقائي على iOS */
  }
  
  /* تحسين الأزرار على الهواتف */
  .form button { 
    min-height: 48px; 
    font-size: 16px;
    padding: 12px 16px;
  }
  
  /* تحسين البطاقات على الهواتف */
  .card { margin-bottom: 16px; }
  
  /* تحسين شريط التنقل على الهواتف */
  .navbar { gap: 12px; }
  .brand { font-size: 1rem; }
  .brand .logo { width: 32px; height: 32px; }
  
  /* تحسين العنوان الرئيسي على الهواتف */
  .hero h1 { font-size: 1.8rem; }
  .lead { font-size: 1rem; }
  
  /* تحسين البحث على الهواتف */
  .search-input { 
    min-height: 48px; 
    font-size: 16px;
    padding: 12px 16px;
  }
}

/* ===== Footer ===== */
.footer { margin: 40px 0 40px; color: var(--muted); text-align: center; }
.site-footer { 
  padding: 40px 0; 
  border-top: 1px solid var(--border); 
  margin-top: 32px; 
  background: var(--surface);
  backdrop-filter: blur(20px);
}
.footer-wrap { display: grid; grid-template-columns: 1fr; gap: 20px; align-items: start; }
@media (min-width: 768px) { 
  .footer-wrap { 
    grid-template-columns: 1fr auto auto auto;
    padding: 0 1rem;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
  } 
}

.footer-brand { 
  display: flex; 
  align-items: center; 
  gap: 12px;
  width: 100%;
  justify-content: center;
}

.footer-brand .logo {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    position: relative;
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
    border-radius: 6px;
    transform: translateY(2px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}
.footer-brand .logo::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60%;
    height: 60%;
    background: var(--surface);
    transform: translate(-50%, -30%) scale(0.8);
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
}
.footer-brand .logo::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, transparent 40%, rgba(255,255,255,0.3) 50%, transparent 60%, transparent 100%);
    animation: shine-diagonal 3s infinite;
}
.footer-links { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 140px), 1fr));
  gap: 16px;
  width: 100%;
  padding: 0 1rem;
  margin: 0 auto;
}

.footer-links h4 { 
  margin: 0 0 10px; 
  font-size: 1rem; 
  color: var(--text); 
  font-weight: 700;
  text-align: center;
}

.footer-links a { 
  display: block;
  text-align: center;
  color: var(--text-soft); 
  text-decoration: none; 
  padding: 6px 0; 
  border-bottom: 1px dashed transparent;
  transition: var(--transition);
}
.footer-links a:hover { 
  border-color: var(--primary); 
  color: var(--primary);
  transform: translateX(4px);
}
.footer-copy { 
  grid-column: 1 / -1; 
  text-align: center; 
  color: var(--muted); 
  margin-top: 8px; 
  font-size: .95rem; 
}

/* Footer extras */
.footer-cta { 
  grid-column: 1 / -1; 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  gap: 12px; 
  padding: 16px; 
  border: 1px solid var(--border); 
  border-radius: var(--radius-sm); 
  background: var(--surface); 
  box-shadow: var(--shadow); 
}
.footer-cta .cta-text { color: var(--text-soft); font-weight: 700; }
.footer-cta .cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.social-links { display: flex; gap: 12px; align-items: center; justify-content: center; }
/* Round social buttons baseline (index may override via footer.css) */
.social-links a {
  display: inline-grid; 
  place-items: center;
  width: 44px; 
  height: 44px; 
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-decoration: none; 
  font-size: 16px; 
  font-weight: 900; 
  color: var(--text);
  filter: saturate(.9);
  transition: var(--transition);
}
.social-links a:hover { 
  transform: translateY(-4px) scale(1.08); 
  border-color: var(--primary); 
  box-shadow: 0 20px 40px rgba(59, 130, 246, 0.25);
  background: var(--primary);
  color: white;
}
.social-links .wa { color: #25D366; }
.social-links .li { color: #0A66C2; }

@media (max-width: 640px){ .footer-cta { flex-direction: column; align-items: stretch; } }

/* ===== Enhanced Tool Pages ===== */
.toolbar { 
  display: flex; 
  gap: var(--space-3); 
  align-items: center; 
  margin: var(--space-6) 0 var(--space-4); 
}

.back { 
  color: var(--primary); 
  text-decoration: none; 
  font-weight: 700;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  transition: var(--transition);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.back::before {
  content: '←';
  transition: var(--transition);
}

.back:hover {
  background: var(--primary);
  color: white;
  transform: translateX(-4px);
  box-shadow: var(--shadow-lg);
}

.back:hover::before {
  transform: translateX(-2px);
}

/* Enhanced Page Container */
.page {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.page::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(800px 400px at 50% -200px, rgba(59, 130, 246, 0.05), transparent 70%),
    radial-gradient(600px 300px at 100% 100%, rgba(139, 92, 246, 0.08), transparent 60%);
  pointer-events: none;
  border-radius: inherit;
}

.page > * {
  position: relative;
  z-index: 1;
}

.page h1 { 
  margin-top: 0; 
  margin-bottom: var(--space-6);
  font-size: var(--font-size-3xl);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: var(--leading-tight);
  font-weight: 800;
}

.page .desc { 
  color: var(--text-soft); 
  margin-top: 0;
  margin-bottom: var(--space-8);
  font-size: var(--font-size-lg);
  line-height: var(--leading-relaxed);
  max-width: 600px;
}

/* ===== Enhanced Form Styles ===== */
.form { 
  display: grid; 
  gap: var(--space-8); 
  grid-template-columns: 1fr; 
  margin-top: var(--space-2);
}

.row { 
  display: grid; 
  gap: var(--space-3); 
  grid-template-columns: 200px 1fr; 
  align-items: center; 
  margin-bottom: var(--space-2); 
}

/* Enhanced Labels */
label { 
  color: var(--text); 
  font-weight: 600; 
  font-size: var(--font-size-base);
  line-height: var(--leading-snug);
  position: relative;
}

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

label:hover::after {
  width: 100%;
}

/* Enhanced Input Styles */
input, select, button, textarea {
  font: inherit; 
  padding: var(--space-3) var(--space-4); 
  background: var(--glass-bg); 
  color: var(--text); 
  border: 2px solid var(--glass-border); 
  border-radius: var(--radius-md);
  transition: var(--transition);
  backdrop-filter: blur(12px);
  position: relative;
  /* Remove blue tap highlight on mobile */
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-appearance: none;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--card);
  box-shadow: 
    0 0 0 4px rgba(59, 130, 246, 0.2),
    var(--shadow-lg);
  transform: translateY(-1px) scale(1.01);
}

input:invalid {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.2);
}

/* Enhanced Date/Time Inputs for Mobile */
input[type="date"], input[type="time"], input[type="datetime-local"] {
  min-height: 48px;
  width: 100%;
  background: var(--glass-bg);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-md);
}

input[type="date"]:focus, input[type="time"]:focus, input[type="datetime-local"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.2);
}

/* Enhanced Textarea */
textarea { 
  min-height: 160px; 
  resize: vertical;
  background: var(--glass-bg);
  border: 2px solid var(--glass-border);
}

input::placeholder, textarea::placeholder { 
  color: var(--text-muted); 
  font-weight: 400;
}

/* Enhanced Button Styles */
button { 
  cursor: pointer; 
  background: var(--gradient-primary); 
  border: none;
  color: white; 
  font-weight: 700;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  box-shadow: var(--shadow-md);
}

button::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: translateX(-100%);
  transition: var(--transition);
}

button:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

button:hover::before {
  transform: translateX(100%);
}

button:active {
  transform: translateY(0) scale(0.98);
  transition: var(--transition-fast);
}

button.secondary { 
  background: var(--glass-bg); 
  color: var(--text); 
  border: 2px solid var(--glass-border);
  backdrop-filter: blur(12px);
}

button.secondary:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

button.ghost { 
  background: transparent; 
  border: 2px dashed var(--border);
  color: var(--text-muted);
  backdrop-filter: none;
}

button.ghost:hover {
  background: var(--glass-bg);
  color: var(--text);
  border-color: var(--primary);
  border-style: solid;
  backdrop-filter: blur(12px);
}

button.sm { 
  padding: var(--space-2) var(--space-3); 
  font-size: var(--font-size-sm); 
}

.inline-input { 
  display: flex; 
  gap: var(--space-3); 
  align-items: center; 
}

.inline-input input, .inline-input select, .inline-input textarea { 
  flex: 1; 
}

/* Enhanced Result Styles */
.result { 
  margin-top: var(--space-6); 
  padding: var(--space-6); 
  background: var(--glass-bg); 
  border: 1px solid var(--glass-border); 
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--success);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.result::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(400px 200px at 0% 50%, rgba(16, 185, 129, 0.05), transparent 70%);
  pointer-events: none;
}

.result > * {
  position: relative;
  z-index: 1;
}

.result strong { 
  color: var(--success);
  font-weight: 700;
}

.help { 
  color: var(--text-muted); 
  font-size: var(--font-size-sm);
  line-height: var(--leading-relaxed);
}

/* ===== Enhanced Component Styles ===== */

/* Enhanced Focus States */
input:focus-visible, select:focus-visible, textarea:focus-visible { 
  outline: none; 
  border-color: var(--primary); 
  box-shadow: 
    0 0 0 4px rgba(59, 130, 246, 0.2),
    var(--shadow-lg);
  transform: translateY(-1px) scale(1.01);
}

button:focus-visible { 
  outline: none; 
  box-shadow: 
    0 0 0 4px rgba(59, 130, 246, 0.3),
    var(--shadow-xl);
}

/* Enhanced Stats Cards */
.stats { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); 
  gap: var(--space-4); 
  margin-top: var(--space-6); 
}

.stat { 
  background: var(--glass-bg); 
  border: 1px solid var(--glass-border); 
  border-radius: var(--radius-lg); 
  padding: var(--space-6); 
  text-align: center; 
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.stat::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(200px 100px at 50% 0%, rgba(59, 130, 246, 0.05), transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: var(--transition);
}

.stat:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--primary);
  box-shadow: var(--shadow-xl);
}

.stat:hover::before {
  opacity: 1;
}

.stat .value { 
  font-size: var(--font-size-2xl); 
  font-weight: 800; 
  color: var(--primary);
  line-height: var(--leading-tight);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat .label { 
  color: var(--text-muted); 
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-top: var(--space-2);
}

/* Enhanced Notice/Pill Components */
.notice { 
  margin-top: var(--space-6); 
  padding: var(--space-4) var(--space-5); 
  border-radius: var(--radius-md); 
  border: 1px solid var(--glass-border); 
  background: var(--glass-bg); 
  color: var(--text);
  border-left: 4px solid var(--primary);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.notice::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(300px 150px at 0% 50%, rgba(59, 130, 246, 0.05), transparent 70%);
  pointer-events: none;
}

.notice > * {
  position: relative;
  z-index: 1;
}

.pill { 
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4); 
  border-radius: var(--radius-full); 
  border: 1px solid var(--glass-border); 
  background: var(--glass-bg); 
  font-weight: 600;
  font-size: var(--font-size-sm);
  transition: var(--transition);
  backdrop-filter: blur(12px);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.pill:hover {
  border-color: var(--primary);
  background: var(--primary);
  color: white;
  transform: translateY(-1px) scale(1.05);
  box-shadow: var(--shadow-lg);
}

/* Enhanced Progress Bar */
.progress { 
  position: relative; 
  height: 16px; 
  border-radius: var(--radius-full); 
  background: linear-gradient(90deg, 
    #38bdf8 0% 18.5%, 
    #22c55e 18.5% 25%, 
    #f59e0b 25% 30%, 
    #ef4444 30% 100%
  );
  box-shadow: var(--shadow-inner);
  overflow: hidden;
}

.progress::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  animation: progress-shimmer 2s ease-in-out infinite;
}

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

.marker { 
  position: absolute; 
  top: -6px; 
  width: 4px; 
  height: 28px; 
  background: var(--accent); 
  box-shadow: 
    0 0 0 3px rgba(139, 92, 246, 0.3),
    var(--shadow-md);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.marker:hover {
  transform: scale(1.2);
  box-shadow: 
    0 0 0 4px rgba(139, 92, 246, 0.4),
    var(--shadow-lg);
}

/* Enhanced Spinner */
.spinner { 
  display: inline-block; 
  width: 20px; 
  height: 20px; 
  border: 3px solid rgba(139, 92, 246, 0.2); 
  border-top-color: var(--accent); 
  border-radius: 50%; 
  animation: spin 1s linear infinite; 
  vertical-align: -4px; 
  margin-inline-start: var(--space-2); 
}

@keyframes spin { 
  to { transform: rotate(360deg); } 
}

/* Enhanced Page Transitions */
.fade-in { 
  animation: fade-in-up var(--duration-500) ease-out forwards; 
}

.fade-in-delayed { 
  animation: fade-in-up var(--duration-700) ease-out 0.2s forwards; 
}

.fade-in-slow { 
  animation: fade-in-up var(--duration-1000) ease-out forwards; 
}

@keyframes fade-in-up { 
  from { 
    opacity: 0; 
    transform: translateY(30px); 
  } 
  to { 
    opacity: 1; 
    transform: translateY(0); 
  } 
}

/* Slide animations */
@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scale animations */
@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Floating animations */
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.float {
  animation: float 3s ease-in-out infinite;
}

/* Pulse animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Bounce animation */
@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
    transform: translate3d(0,0,0);
  }
  40%, 43% {
    animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
    transform: translate3d(0, -30px, 0);
  }
  70% {
    animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0,-4px,0);
  }
}

.bounce {
  animation: bounce 1s;
}

/* Responsive */
@media (max-width: 640px) { 
  .row { grid-template-columns: 1fr; }
  
  /* تحسين التخطيط على الشاشات المتوسطة */
  .container { width: 95%; }
  
  /* تحسين البطاقات على الشاشات المتوسطة */
  .grid { 
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); 
    gap: 16px; 
  }
  
  /* تحسين النماذج على الشاشات المتوسطة */
  .form .row { gap: 10px; }
  
  /* تحسين الأزرار على الشاشات المتوسطة */
  .form button { 
    min-height: 44px; 
    padding: 10px 14px;
  }
}

/* تحسينات إضافية للشاشات الصغيرة جداً */
@media (max-width: 360px) {
  .hero { padding: 30px 0 15px; }
  .hero h1 { font-size: 1.6rem; }
  .lead { font-size: 0.95rem; }
  
  .navbar { padding: 10px 0; }
  .brand { font-size: 0.9rem; }
  .brand .logo { width: 28px; height: 28px; }
  
  .card { padding: 12px; }
  .card h3 { font-size: 1rem; }
  .card p { font-size: 0.9rem; }
  
  .form input, .form select, .form textarea { 
    min-height: 44px; 
    font-size: 16px;
  }
  
  .form button { 
    min-height: 44px; 
    font-size: 14px;
    padding: 10px 12px;
  }
}

/* ===== تحسينات المسافات للأدوات والمقالات ===== */

/* تحسين المسافات في صفحات الأدوات */
.page .form .row {
  margin-bottom: 12px;
}

.page .form .row:last-of-type {
  margin-bottom: 0;
  margin-top: 8px;
}

/* تحسين المسافات في المقالات الفردية */
.post {
  line-height: 1.8;
}

.post h1 {
  margin-top: 0;
  margin-bottom: 20px;
  line-height: 1.3;
}

.post .meta {
  margin-bottom: 28px;
  line-height: 1.4;
}

.post p {
  margin-bottom: 20px;
  line-height: 1.8;
}

.post p:first-of-type {
  margin-top: 8px;
}

.post h3 {
  margin: 28px 0 16px 0;
  line-height: 1.4;
}

.post ul, .post ol {
  margin: 20px 0;
  padding-right: 24px;
  line-height: 1.7;
}

.post li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.post .back {
  margin-top: 32px;
  display: inline-block;
}

/* تحسين المسافات في الصفحات العامة */
.page p {
  line-height: 1.8;
  margin-bottom: 18px;
}

.page p:first-of-type {
  margin-top: 8px;
}

.page h3 {
  margin: 24px 0 12px 0;
  line-height: 1.4;
}

.page ul, .page ol {
  margin: 16px 0;
  padding-right: 20px;
  line-height: 1.7;
}

.page li {
  margin-bottom: 6px;
  line-height: 1.7;
}

/* تحسين المسافات في النصوص المساعدة */
.help {
  line-height: 1.6;
  margin-top: 16px;
}

.desc {
  line-height: 1.7;
}

/* تحسين المسافات في الروابط */
.page a {
  line-height: 1.6;
}

/* تحسين المسافات للعناوين في جميع الصفحات */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
}

/* تحسين المسافة بعد العنوان الرئيسي */
.container h1 + p,
.container h1 + .desc,
.container h1 + form,
.container h1 + .form {
  margin-top: 8px;
}

/* تحسين المسافات في نتائج الأدوات */
.result {
  margin-top: 24px;
  padding: 20px;
}

.stats {
  gap: 16px;
}

.stat {
  padding: 16px;
}

/* تحسين المسافات في الإشعارات */
.notice {
  margin-top: 20px;
  padding: 16px;
  line-height: 1.6;
}

/* تحسينات استجابة للمسافات الجديدة */
@media (max-width: 480px) {
  .page .form .row {
    margin-bottom: 8px;
  }
  
  .post h1 {
    margin-bottom: 16px;
  }
  
  .post .meta {
    margin-bottom: 20px;
  }
  
  .post p {
    margin-bottom: 16px;
    line-height: 1.7;
  }
  
  .post p:first-of-type {
    margin-top: 6px;
  }
  
  .post h3 {
    margin: 20px 0 12px 0;
  }
  
  .post ul, .post ol {
    margin: 16px 0;
    padding-right: 20px;
    line-height: 1.6;
  }
  
  .post .back {
    margin-top: 24px;
  }
  
  .page h1 {
    margin-bottom: 16px;
  }
  
  .page .desc {
    margin-bottom: 20px;
  }
  
  .page p {
    margin-bottom: 16px;
    line-height: 1.7;
  }
  
  .page p:first-of-type {
    margin-top: 6px;
  }
  
  .page h3 {
    margin: 20px 0 10px 0;
  }
  
  .page ul, .page ol {
    margin: 14px 0;
    padding-right: 18px;
    line-height: 1.6;
  }
  
  .result {
    margin-top: 20px;
    padding: 16px;
  }
}