/* ToolzFree Global Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');
/* Fonts loaded via preconnect in HTML head to prevent render blocking */

/* ==========================================================================
   CSS Custom Properties (Tokens)
   ========================================================================== */
:root {
  /* Common Core Tokens */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: 'Outfit', 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', Courier, monospace;
  --section-padding-y: clamp(5rem, 8vw, 8rem);
  --border-radius-xs: 6px;
  --border-radius-sm: 10px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --border-radius-xl: 32px;
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.2);

  /* Theme Configurations - Default Dark Mode (Aesthetic Core) */
  --bg-primary: #050816;
  --bg-secondary: #0d0d19;
  --bg-tertiary: #131326;
  --bg-glass: rgba(13, 13, 25, 0.7);
  --bg-glass-input: rgba(6, 6, 12, 0.5);
  --border-color: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(6, 182, 212, 0.15);
  --border-glass: rgba(255, 255, 255, 0.07);
  
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
  
  --accent-cyan: #06b6d4;
  --accent-cyan-rgb: 6, 182, 212;
  --accent-blue: #3b82f6;
  --accent-blue-rgb: 59, 130, 246;
  --accent-purple: #7c3aed;
  --accent-purple-rgb: 124, 58, 237;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-orange: #fb7185;
  
  --glow-color: rgba(6, 182, 212, 0.1);
  --card-glow: 0 4px 20px rgba(0, 0, 0, 0.15);
  --card-glow-hover: 0 12px 40px rgba(6, 182, 212, 0.08);

  --glass-blur: 16px;
  --header-height: 68px;
  --spotlight-rgb: 6, 182, 212;
  --spotlight-opacity: 0.12;

  /* Custom Scrollbar Variable Tokens - Dark Mode */
  --scrollbar-track: rgba(5, 8, 22, 0.6);
  --scrollbar-thumb-border: rgba(5, 8, 22, 0.9);
  --scrollbar-thumb: linear-gradient(180deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  --scrollbar-thumb-hover: linear-gradient(180deg, #3b82f6 0%, #06b6d4 100%);
  --scrollbar-thumb-glow: rgba(6, 182, 212, 0.6);
  --scrollbar-firefox: rgba(255, 255, 255, 0.1) transparent;
  --inner-scrollbar-thumb: rgba(255, 255, 255, 0.15);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.8);
  --bg-glass-input: rgba(241, 245, 249, 0.7);
  --border-color: rgba(15, 23, 42, 0.08);
  --border-glow: rgba(8, 145, 178, 0.15);
  --border-glass: rgba(15, 23, 42, 0.05);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --accent-cyan: #0891b2;
  --accent-cyan-rgb: 8, 145, 178;
  --accent-blue: #2563eb;
  --accent-blue-rgb: 37, 99, 235;
  --accent-purple: #7c3aed;
  --accent-purple-rgb: 124, 58, 237;
  
  --glow-color: rgba(8, 145, 178, 0.15);
  --card-glow: 0 8px 30px rgba(15, 23, 42, 0.04);
  --card-glow-hover: 0 12px 35px rgba(8, 145, 178, 0.1);
  --border-glass: rgba(0, 0, 0, 0.05);
  --spotlight-rgb: 8, 145, 178;
  --spotlight-opacity: 0.08;

  /* Custom Scrollbar Variable Tokens - Light Mode */
  --scrollbar-track: rgba(226, 232, 240, 0.55);
  --scrollbar-thumb-border: rgba(248, 250, 252, 0.9);
  --scrollbar-thumb: linear-gradient(180deg, #94a3b8 0%, #64748b 100%);
  --scrollbar-thumb-hover: linear-gradient(180deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  --scrollbar-thumb-glow: rgba(8, 145, 178, 0.3);
  --scrollbar-firefox: rgba(15, 23, 42, 0.2) transparent;
  --inner-scrollbar-thumb: rgba(15, 23, 42, 0.25);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

@media (max-width: 1024px) {
  html {
    font-size: 15px;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 13.5px;
  }
}

@media (max-width: 360px) {
  html {
    font-size: 12.5px;
  }
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  letter-spacing: -0.011em;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--inner-scrollbar-thumb);
  border-radius: var(--border-radius-xs);
  border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 0.5em;
  letter-spacing: -0.03em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.4rem, 3vw, 1.8rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.3rem); }

p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

strong, b {
  font-weight: 700;
  font-family: inherit;
}

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

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

ul, ol {
  list-style: none;
}

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

/* ==========================================================================
   Background / Particle Effects
   ========================================================================== */
.space-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -10;
  pointer-events: none;
  overflow: hidden;
  background-color: var(--bg-primary);
  transition: background-color var(--transition-normal);
}

hero-aurora {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.hero-aurora-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-aurora-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  will-change: transform;
}

/* Glow Blobs - Ultra Subtle Ambient Aurora Glows - Homepage Hero Only */
.hero-aurora-glow .glow-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px); /* Optimal blur inside 90px-120px range for visual quality and performance */
  opacity: 0.04; /* Extremely subtle opacity to ensure hero typography contrast remains excellent */
  pointer-events: none;
  mix-blend-mode: screen;
  will-change: transform;
}

[data-theme="light"] .hero-aurora-glow .glow-blob {
  opacity: 0.02; /* Extra subtle for light theme contrast */
  mix-blend-mode: multiply;
  filter: blur(110px);
}

/* Blue Blob: Positioned Top-Left */
.hero-aurora-glow .blob-blue {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(var(--accent-blue-rgb), 0.4) 0%, rgba(var(--accent-blue-rgb), 0.15) 50%, rgba(var(--accent-blue-rgb), 0) 100%);
  top: -150px;
  left: -150px;
  animation: float-blue-blob 35s infinite alternate ease-in-out;
}

/* Purple Blob: Positioned Top-Right */
.hero-aurora-glow .blob-purple {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.35) 0%, rgba(124, 58, 237, 0.12) 50%, rgba(124, 58, 237, 0) 100%);
  top: -120px;
  right: -120px;
  animation: float-purple-blob 40s infinite alternate ease-in-out;
}

/* Cyan Blob: Positioned Lower-Center */
.hero-aurora-glow .blob-cyan {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.3) 0%, rgba(6, 182, 212, 0.1) 50%, rgba(6, 182, 212, 0) 100%);
  bottom: -180px;
  left: 20%;
  animation: float-cyan-blob 30s infinite alternate ease-in-out;
}

/* Strictly hide any background glow blobs on all pages except the homepage hero section */
.space-background .glow-blob {
  display: none !important;
}

/* Static High-End Grid overlay background */
.space-background::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(96, 165, 250, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96, 165, 250, 0.015) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

[data-theme="light"] .space-background::after {
  background-image: 
    linear-gradient(rgba(0, 85, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 85, 255, 0.015) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ==========================================================================
   Compositor-Thread Slow Drift Animations (GPU Accelerated)
   ========================================================================== */
@keyframes float-blue-blob {
  0% { transform: translate3d(0, 0, 0) scale3d(1, 1, 1); }
  50% { transform: translate3d(35px, 20px, 0) scale3d(1.05, 1.05, 1); }
  100% { transform: translate3d(-15px, -30px, 0) scale3d(0.95, 0.95, 1); }
}

@keyframes float-purple-blob {
  0% { transform: translate3d(0, 0, 0) scale3d(1, 1, 1); }
  50% { transform: translate3d(-25px, 30px, 0) scale3d(1.04, 1.04, 1); }
  100% { transform: translate3d(25px, -15px, 0) scale3d(0.96, 0.96, 1); }
}

@keyframes float-cyan-blob {
  0% { transform: translate3d(0, 0, 0) scale3d(1, 1, 1); }
  50% { transform: translate3d(15px, -35px, 0) scale3d(1.06, 1.06, 1); }
  100% { transform: translate3d(-30px, 15px, 0) scale3d(0.94, 0.94, 1); }
}

/* Reduced Intensity (50%) Animations for Mobile Devices */
@keyframes float-blue-blob-mobile {
  0% { transform: translate3d(0, 0, 0) scale3d(1, 1, 1); }
  50% { transform: translate3d(15px, 10px, 0) scale3d(1.02, 1.02, 1); }
  100% { transform: translate3d(-8px, -15px, 0) scale3d(0.98, 0.98, 1); }
}

@keyframes float-purple-blob-mobile {
  0% { transform: translate3d(0, 0, 0) scale3d(1, 1, 1); }
  50% { transform: translate3d(-12px, 15px, 0) scale3d(1.02, 1.02, 1); }
  100% { transform: translate3d(12px, -8px, 0) scale3d(0.98, 0.98, 1); }
}

@keyframes float-cyan-blob-mobile {
  0% { transform: translate3d(0, 0, 0) scale3d(1, 1, 1); }
  50% { transform: translate3d(8px, -18px, 0) scale3d(1.03, 1.03, 1); }
  100% { transform: translate3d(-15px, 8px, 0) scale3d(0.97, 0.97, 1); }
}

/* Desktop-Only Animations & Hardware-Bypass Queries */
@media (max-width: 768px) {
  .hero-aurora-glow .glow-blob {
    opacity: 0.03 !important; /* Reduced opacity on mobile */
    filter: blur(80px) !important; /* Slightly tighter blur on mobile for sharpness */
  }
  .hero-aurora-glow .blob-blue {
    width: 260px !important; /* Reduced blob size on mobile */
    height: 260px !important;
    top: -80px !important;
    left: -80px !important;
    animation: float-blue-blob-mobile 35s infinite alternate ease-in-out !important; /* Reduced animation intensity by 50% */
  }
  .hero-aurora-glow .blob-purple {
    width: 240px !important;
    height: 240px !important;
    top: -60px !important;
    right: -60px !important;
    animation: float-purple-blob-mobile 40s infinite alternate ease-in-out !important;
  }
  .hero-aurora-glow .blob-cyan {
    width: 280px !important;
    height: 280px !important;
    bottom: -90px !important;
    left: 15% !important;
    animation: float-cyan-blob-mobile 30s infinite alternate ease-in-out !important;
  }
}

/* ==========================================================================
   Layout Structures & Grids
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  position: relative;
}

.grid-cols-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.grid-cols-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.grid-cols-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Spacing and Flex Utilities */
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.text-center { text-align: center; }

/* Gradient Text Effect */
.gradient-text {
  background: linear-gradient(135deg, #ffffff 10%, var(--accent-cyan) 60%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

[data-theme="light"] .gradient-text {
  background: linear-gradient(135deg, #0f172a 10%, var(--accent-blue) 60%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-alt {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

/* ==========================================================================
   Animations & Transition Effects
   ========================================================================== */
@keyframes float-blob {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(50px, 30px) scale(1.1); }
  100% { transform: translate(-30px, -50px) scale(0.9); }
}

@keyframes float-icon {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(3deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 10px rgba(var(--accent-cyan-rgb), 0.1); }
  50% { box-shadow: 0 0 20px rgba(var(--accent-cyan-rgb), 0.3); }
  100% { box-shadow: 0 0 10px rgba(var(--accent-cyan-rgb), 0.1); }
}

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

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}


.animate-fade-in {
  animation: fade-in var(--transition-slow) forwards;
}

.animate-slide-up {
  animation: slide-up var(--transition-slow) forwards;
}

/* Reveal on Scroll class */
.js-reveal .reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.js-reveal .reveal.active {
  opacity: 1;
  transform: translateY(0);
}


/* Centralized GPU-accelerated premium transitions */
@keyframes chipSlideUp {
  from {
    transform: translate3d(0, 6px, 0);
    opacity: 0;
  }
  to {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
}

@keyframes resultsFadeIn {
  from {
    transform: translate3d(0, 10px, 0);
    opacity: 0;
  }
  to {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
}


@keyframes popScale {
  from {
    transform: scale3d(0.9, 0.9, 1);
    opacity: 0;
  }
  to {
    transform: scale3d(1, 1, 1);
    opacity: 1;
  }
}

/* Performance Optimization: Disable all transitions and animations temporarily during theme toggle */
.disable-transitions,
.disable-transitions * {
  transition: none !important;
  animation: none !important;
}

/* ==========================================================================
   Pure CSS Scroll Isolation & Layout Shift Prevention System
   ========================================================================== */

/* 1. Reserve scrollbar gutter space globally to prevent page shift/jump when scroll lock toggles */
html {
  scrollbar-gutter: stable;
}


/* 2. Modern GPU-accelerated CSS scroll locking using :has selectors */
html:has(.search-modal.open),
body:has(.search-modal.open),
html:has(.mobile-drawer.open),
body:has(.mobile-drawer.open) {
  overflow: hidden !important;
  height: 100vh !important;
  overscroll-behavior: none !important;
}

/* 3. Native compositor-thread scroll isolation to strictly contain nested scrolling */
.search-results,
.mobile-drawer,
.mobile-nav,
.tabs-nav,
.tool-sidebar,
.tool-output-pre,
.table-responsive {
  overscroll-behavior: contain !important;
  overscroll-behavior-y: contain !important;
  -webkit-overflow-scrolling: touch !important; /* Premium fluid swipe physics on iOS Safari */
}

/* ==========================================================================
   Typography Mono Overrides for Tool Elements
   ========================================================================== */
code, 
pre, 
.tool-output-pre, 
.json-textarea,
textarea[id*="input"],
textarea[id*="output"],
pre[class*="output"],
.stat-count, 
.badge, 
.hero-stat-item h3 {
  font-family: var(--font-mono) !important;
  letter-spacing: -0.01em;
}

/* ==========================================================================
   Premium SaaS Spotlight Card & Bento Grid Hover Glow
   ========================================================================== */
.glass-card, .tool-card, .metric-value-box, .file-drop-zone, .tool-workspace, .performance-chip, .why-choose-card {
  position: relative;
  overflow: hidden; /* Prevent glow from spilling outside the borders */
}

.glass-card::after, .tool-card::after, .metric-value-box::after, .file-drop-zone::after, .tool-workspace::after, .performance-chip::after, .why-choose-card::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  top: -150px;
  left: -150px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(var(--spotlight-rgb), var(--spotlight-opacity)),
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 2;
  transform: translate3d(var(--mouse-x, -9999px), var(--mouse-y, -9999px), 0);
  will-change: transform, opacity;
}

.glass-card:hover::after, .tool-card:hover::after, .metric-value-box:hover::after, .file-drop-zone:hover::after, .tool-workspace:hover::after, .performance-chip:hover::after, .why-choose-card:hover::after {
  opacity: 1;
}

/* Reduced spotlight intensity on mobile/touch screens */
@media (max-width: 768px) {
  .glass-card::after, .tool-card::after, .metric-value-box::after, .file-drop-zone::after, .tool-workspace::after, .performance-chip::after, .why-choose-card::after {
    width: 200px;
    height: 200px;
    top: -100px;
    left: -100px;
    background: radial-gradient(
      circle,
      rgba(var(--spotlight-rgb), 0.08),
      transparent 70%
    );
  }
}

/* ==========================================================================
   Magnetic CTA Button Smooth Easing Transitions
   ========================================================================== */
.btn {
  will-change: transform;
  transition: transform 0.25s cubic-bezier(0.25, 1, 0.5, 1), box-shadow var(--transition-normal), border-color var(--transition-fast);
}

/* ==========================================================================
   Modern Scroll Reveal & Stagger Animation System
   ========================================================================== */
.js-reveal .scroll-reveal {
  opacity: 0;
  transform: translate3d(0, 20px, 0);
  will-change: transform, opacity;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.js-reveal .scroll-reveal.revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.js-reveal .stagger-item {
  opacity: 0;
  transform: translate3d(0, 15px, 0);
  will-change: transform, opacity;
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.js-reveal .stagger-item.revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}


/* ==========================================================================
   Accessibility: Support Prefers Reduced Motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  .scroll-reveal,
  .stagger-item,
  .animate-box,
  .reveal,
  .hero-details > *,
  .hero-details .hero-title {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
    animation: none !important;
  }
  
  .glass-card::after, .tool-card::after {
    display: none !important;
  }
  
  .btn {
    transform: none !important;
    transition: none !important;
  }
  
  .hero-aurora-glow .glow-blob {
    animation: none !important;
  }
}

/* ==========================================================================
   Premium Hero Entry Stagger Animations (SaaS Standard)
   ========================================================================== */
.hero-details > * {
  opacity: 0;
  animation: hero-fade-slide-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes hero-fade-slide-up {
  0% {
    opacity: 0;
    transform: translate3d(0, 15px, 0);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes hero-blur-reveal {
  0% {
    opacity: 0;
    filter: blur(12px);
    transform: translate3d(0, 20px, 0);
  }
  100% {
    opacity: 1;
    filter: blur(0);
    transform: translate3d(0, 0, 0);
  }
}

.hero-details .hero-badge-glow {
  animation-delay: 0.1s;
}

.hero-details .hero-title {
  animation-name: hero-blur-reveal;
  animation-duration: 1.1s;
  animation-delay: 0.22s;
  will-change: transform, filter, opacity;
}

.hero-details .hero-subhead {
  animation-delay: 0.38s;
}

.hero-details .hero-search-wrap {
  animation-delay: 0.5s;
}

.hero-details .hero-trending-tags {
  animation-delay: 0.6s;
}

.hero-details .hero-stats-row {
  animation-delay: 0.7s;
}

/* ==========================================================================
   Centralized Platform Entrance Animations (SaaS Standard)
   ========================================================================== */
.js-reveal .animate-box {
  opacity: 0;
  will-change: transform, opacity;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.js-reveal .animate-box.anim-ltr { transform: translate3d(-20px, 0, 0); }
.js-reveal .animate-box.anim-rtl { transform: translate3d(20px, 0, 0); }
.js-reveal .animate-box.anim-ttb { transform: translate3d(0, -20px, 0); }
.js-reveal .animate-box.anim-btt { transform: translate3d(0, 20px, 0); }

.js-reveal .animate-box.anim-visible {
  opacity: 1 !important;
  transform: translate3d(0, 0, 0) !important;
}

/* Windows OS (Desktop): Sophisticated Bezier Animations */
.js-reveal .os-windows .animate-box {
  transition: opacity 1.0s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1.0s cubic-bezier(0.16, 1, 0.3, 1);
}
.js-reveal .os-windows .animate-box.anim-ltr { transform: translate3d(-30px, 0, 0); }
.js-reveal .os-windows .animate-box.anim-rtl { transform: translate3d(30px, 0, 0); }
.js-reveal .os-windows .animate-box.anim-ttb { transform: translate3d(0, -30px, 0); }
.js-reveal .os-windows .animate-box.anim-btt { transform: translate3d(0, 30px, 0); }

/* Android/iOS (Mobile): Snappy native-feel directional reveals */
.js-reveal .os-android .animate-box {
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}
.js-reveal .os-android .animate-box.anim-ltr { transform: translate3d(-15px, 0, 0); }
.js-reveal .os-android .animate-box.anim-rtl { transform: translate3d(15px, 0, 0); }
.js-reveal .os-android .animate-box.anim-ttb { transform: translate3d(0, -15px, 0); }
.js-reveal .os-android .animate-box.anim-btt { transform: translate3d(0, 15px, 0); }


/* Premium Hover States overriding scroll transitions once visible */
.glass-card.animate-box.anim-visible:hover {
  transform: scale3d(1.03, 1.03, 1) !important;
  box-shadow: 0 12px 30px rgba(var(--accent-cyan-rgb), 0.12), var(--card-glow-hover);
  border-color: var(--accent-cyan);
}

/* ==========================================================================
   Premium Why Choose ToolzFree Section & Card Redesign
   ========================================================================== */
/* ==========================================================================
   Premium Why Choose ToolzFree Section & Card Redesign
   ========================================================================== */
.why-choose-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .why-choose-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .why-choose-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Optimized for Mobile (max-width: 768px) to display in 1 column for readability and impact */
@media (max-width: 768px) {
  .why-choose-grid {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }
  .why-choose-grid > :last-child {
    grid-column: auto !important;
  }
}

.why-choose-card {
  /* Force dark theme token properties locally so they render identically in light & dark modes */
  --text-primary: #ffffff !important;
  --text-secondary: #cbd5e1 !important;
  --text-muted: #94a3b8 !important;
  --accent-cyan: #fbbf24 !important;
  --accent-purple: #7c3aed !important;
  --accent-green: #10b981 !important;
  --card-grid-color: rgba(255, 255, 255, 0.015);
  --card-bg-image: url('../image/tech-bg.png');
  
  position: relative;
  padding: 2.5rem 2.25rem;
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(251, 191, 36, 0.22) !important;
  background: 
    radial-gradient(circle at 20% 20%, rgba(251, 191, 36, 0.22) 0%, transparent 60%),
    radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.18) 0%, transparent 60%),
    linear-gradient(var(--card-grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--card-grid-color) 1px, transparent 1px),
    var(--card-bg-image),
    linear-gradient(135deg, #070b24 0%, #040615 100%) !important;
  background-size: 100% 100%, 100% 100%, 32px 32px, 32px 32px, cover, 100% 100% !important;
  background-position: center !important;
  background-blend-mode: screen, screen, normal, normal, overlay, normal !important;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: 
    opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    border-color 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    background-color 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    background 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.8s cubic-bezier(0.16, 1, 0.3, 1) !important;
  will-change: transform, opacity, box-shadow, border-color, background-color;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  height: 100%;
  overflow: hidden;
}

/* Card-Specific Tech Background Image Overrides */
.why-choose-card.card-privacy {
  --card-bg-image: url('../image/privacy-bg.png');
}
.why-choose-card.card-speed {
  --card-bg-image: url('../image/speed-bg.png');
}
.why-choose-card.card-offline {
  --card-bg-image: url('../image/offline-bg.png');
}

/* Top accent line indicator */
.why-choose-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: rgba(var(--spotlight-rgb), 0.8);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.why-choose-card:hover::before {
  opacity: 1;
}

.why-choose-card:hover {
  transform: translate3d(0, -8px, 0) scale3d(1.02, 1.02, 1) !important;
  border-color: rgba(var(--accent-cyan-rgb), 0.45) !important;
  z-index: 10;
  opacity: 1 !important;
  filter: brightness(1.12) !important;
  background: 
    radial-gradient(circle at 20% 20%, rgba(var(--accent-cyan-rgb), 0.3) 0%, transparent 60%),
    radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.25) 0%, transparent 60%),
    linear-gradient(var(--card-grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--card-grid-color) 1px, transparent 1px),
    var(--card-bg-image),
    linear-gradient(135deg, #090e30 0%, #05071a 100%) !important;
  background-size: 100% 100%, 100% 100%, 32px 32px, 32px 32px, cover, 100% 100% !important;
  background-position: center !important;
  background-blend-mode: screen, screen, normal, normal, overlay, normal !important;
  box-shadow: 0 22px 45px rgba(0, 0, 0, 0.35), 0 0 30px rgba(var(--accent-cyan-rgb), 0.18) !important;
  transition: 
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    border-color 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    background 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    filter 0.6s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.why-choose-card h3 {
  font-family: var(--font-display) !important;
  font-weight: 800 !important;
  font-size: 1.35rem !important;
  letter-spacing: -0.02em !important;
  margin-top: 0;
  margin-bottom: 0.75rem !important;
  color: var(--text-primary) !important;
  line-height: 1.4 !important;
  text-align: center !important;
  width: 100%;
}

.why-choose-card p {
  font-size: 0.95rem !important;
  line-height: 1.65 !important;
  color: var(--text-secondary) !important;
  margin-bottom: 0 !important;
  text-align: center !important;
  width: 100%;
  max-width: 320px;
  margin-left: auto !important;
  margin-right: auto !important;
  flex-grow: 1;
}

/* Customized glowing SVG icon boxes */
.why-choose-card .tool-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto !important;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
  will-change: transform;
}

.why-choose-card .tool-card-icon svg {
  display: block;
  transition: filter 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.why-choose-card:hover .tool-card-icon {
  transform: scale(1.12) rotate(5deg);
}

/* Card 1 (Privacy): Cyan icon & tint */
.why-choose-card.card-privacy .tool-card-icon {
  background: rgba(var(--accent-cyan-rgb), 0.12) !important;
  color: var(--accent-cyan) !important;
  border: 1px solid rgba(var(--accent-cyan-rgb), 0.3) !important;
  box-shadow: 0 0 12px rgba(var(--accent-cyan-rgb), 0.15) !important;
}
.why-choose-card.card-privacy .tool-card-icon svg {
  filter: drop-shadow(0 0 6px rgba(var(--accent-cyan-rgb), 0.4));
}
.why-choose-card.card-privacy:hover .tool-card-icon {
  background: rgba(var(--accent-cyan-rgb), 0.25) !important;
  color: #ffffff !important;
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 25px rgba(var(--accent-cyan-rgb), 0.5) !important;
}
.why-choose-card.card-privacy:hover .tool-card-icon svg {
  filter: drop-shadow(0 0 8px var(--accent-cyan)) !important;
}

/* Card 2 (Speed): Purple icon & tint */
.why-choose-card.card-speed .tool-card-icon {
  background: rgba(124, 58, 237, 0.12) !important;
  color: #c084fc !important;
  border: 1px solid rgba(124, 58, 237, 0.3) !important;
  box-shadow: 0 0 12px rgba(124, 58, 237, 0.15) !important;
}
.why-choose-card.card-speed .tool-card-icon svg {
  filter: drop-shadow(0 0 6px rgba(124, 58, 237, 0.4));
}
.why-choose-card.card-speed:hover .tool-card-icon {
  background: rgba(124, 58, 237, 0.25) !important;
  color: #ffffff !important;
  border-color: #c084fc !important;
  box-shadow: 0 0 25px rgba(124, 58, 237, 0.5) !important;
}
.why-choose-card.card-speed:hover .tool-card-icon svg {
  filter: drop-shadow(0 0 8px #c084fc) !important;
}

/* Card 3 (Offline): Green icon & tint */
.why-choose-card.card-offline .tool-card-icon {
  background: rgba(16, 185, 129, 0.12) !important;
  color: #10b981 !important;
  border: 1px solid rgba(16, 185, 129, 0.3) !important;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.15) !important;
}
.why-choose-card.card-offline .tool-card-icon svg {
  filter: drop-shadow(0 0 6px rgba(16, 185, 129, 0.4));
}
.why-choose-card.card-offline:hover .tool-card-icon {
  background: rgba(16, 185, 129, 0.25) !important;
  color: #ffffff !important;
  border-color: #10b981 !important;
  box-shadow: 0 0 25px rgba(16, 185, 129, 0.5) !important;
}
.why-choose-card.card-offline:hover .tool-card-icon svg {
  filter: drop-shadow(0 0 8px #10b981) !important;
}

/* Mobile specific styling overrides for card contents */
@media (max-width: 768px) {
  .why-choose-card {
    padding: 2rem 1.75rem !important;
    align-items: center !important;
    text-align: center !important;
  }
  .why-choose-card::before {
    opacity: 1 !important;
  }
  .why-choose-card h3 {
    font-size: 1.2rem !important;
    margin-bottom: 0.6rem !important;
  }
  .why-choose-card p {
    font-size: 0.9rem !important;
    line-height: 1.55 !important;
    max-width: 100% !important;
  }
  .why-choose-card .tool-card-icon {
    width: 44px !important;
    height: 44px !important;
    margin: 0 auto 1.25rem auto !important;
  }
}


/* ==========================================================================
   View Transitions circular sweep reveal
   ========================================================================== */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}
::view-transition-old(root) {
  z-index: 1;
}
::view-transition-new(root) {
  z-index: 9999;
}
[data-theme="light"]::view-transition-old(root) {
  z-index: 9999;
}
[data-theme="light"]::view-transition-new(root) {
  z-index: 1;
}

/* ==========================================================================
   Safari WebKit Animation & Blur Performance Fallbacks
   ========================================================================== */
@supports (-webkit-backdrop-filter: blur(1px)) {
  .glass-card, .btn-secondary, .mobile-drawer, .search-container, .tool-output-box {
    backdrop-filter: blur(var(--glass-blur)) !important;
    -webkit-backdrop-filter: blur(var(--glass-blur)) !important;
  }
}

.glass-card, .btn, .tool-card-icon, .accordion-item, .why-choose-card {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  will-change: transform, opacity;
}

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Global Buffering Dot Animation for Buttons */
@keyframes buffering-dot {
  0% { opacity: 0.2; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-2px); }
  60% { opacity: 0.2; transform: translateY(0); }
  100% { opacity: 0.2; transform: translateY(0); }
}
.buffering-dot {
  display: inline-block;
  width: 4px;
  height: 4px;
  background-color: currentColor;
  border-radius: 50%;
  margin: 0 1.5px;
  animation: buffering-dot 1.4s infinite both;
}
.buffering-dot:nth-child(1) { animation-delay: 0s; }
.buffering-dot:nth-child(2) { animation-delay: 0.2s; }
.buffering-dot:nth-child(3) { animation-delay: 0.4s; }

/* Platform & Performance overrides for Android, low-end mobile devices, and prefers-reduced-motion */
.os-android,
@media (prefers-reduced-motion: reduce) {
  :root {
    --bg-glass: rgba(13, 13, 25, 0.95);
    --glass-blur: 0px;
  }
  [data-theme="light"] {
    --bg-glass: rgba(255, 255, 255, 0.97);
  }

  .glass-card,
  .mobile-drawer,
  .search-container,
  .tool-output-box,
  .modal-overlay,
  .btn-secondary {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  /* Simplify transitions on cards on mobile and low-performance systems */
  .glass-card {
    transition: opacity 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease !important;
  }

  /* Disable expensive 3D properties and transitions on low-performance devices */
  .glass-card, .btn, .tool-card-icon, .accordion-item, .why-choose-card {
    transform: none !important;
    transform-style: flat !important;
    backface-visibility: visible !important;
  }

  /* Disable spotlights on mobile to prevent paint storm */
  .glass-card::after,
  .tool-card::after,
  .metric-value-box::after,
  .file-drop-zone::after,
  .tool-workspace::after,
  .performance-chip::after,
  .why-choose-card::after {
    display: none !important;
  }
}

/* ==========================================================================
   Android Layout Overflow Glitch Fix
   ========================================================================== */
textarea,
input,
select,
pre,
code,
.form-input,
.tool-card,
.glass-card,
.tool-workspace,
.tool-layout,
.flex-col,
.form-group,
.calc-inputs-grid {
  max-width: 100% !important;
  box-sizing: border-box !important;
  word-break: break-word !important;
  overflow-wrap: break-word !important;
}

input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="number"],
textarea {
  min-width: 0 !important; /* Fix flexbox auto-expand layout blowout */
}

/* ==========================================================================
   GPU-Accelerated Card Hover Effects (Lag Fix)
   ========================================================================== */
@media (hover: hover) and (pointer: fine) {
  .tool-card,
  .why-choose-card,
  .glass-card,
  .sidebar-related-card {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
  }

  .tool-card:hover,
  .why-choose-card:hover,
  .glass-card:hover,
  .sidebar-related-card:hover {
    transform: scale3d(1.02, 1.02, 1.02) !important;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15), var(--card-glow-hover) !important;
  }
}