/* ============================================
   NUQRAI TOOLS — Anti-AI Human-Made Edition
   Editorial, Opinionated, Deliberately Imperfect
   ============================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,600;0,700;1,600&family=Nunito:wght@400;500;600;700;800;900&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ============================================
   CSS Variables
   ============================================ */
:root {
  /* Cartoony Neo-Brutalist Palette */
  --bg-primary: #FAFAF7;
  --bg-secondary: #F4F4F0;
  --bg-tertiary: #E8E8E0;
  --bg-card: #FAFAF7;
  --bg-card-hover: #FFFDF5;
  --bg-input: #FFFFFF;
  --bg-input-focus: #FFFFFF;

  --border-subtle: #E8E8E0;
  --border-medium: #1A1A2E;
  --border-strong: #1A1A2E;
  --border-accent: #1A1A2E;

  --text-primary: #1A1A2E;
  --text-secondary: #3A3A4E;
  --text-muted: #6A6A7E;
  --text-accent: #6C3FE6;

  --accent-primary: #6C3FE6;
  --accent-primary-light: #8C5FF6;
  --accent-primary-glow: rgba(108, 63, 230, 0.05);
  --accent-secondary: #FF6B35;
  --accent-secondary-glow: rgba(255, 107, 53, 0.05);
  --accent-gradient: linear-gradient(135deg, #6C3FE6 0%, #FF6B35 100%);
  --accent-gradient-text: linear-gradient(135deg, #6C3FE6 0%, #FF6B35 100%);

  --accent-yellow: #FFB800;
  --accent-green: #00F5A0;
  --accent-pink: #FF4B91;

  --success: #00D16C;
  --warning: #FFB800;
  --error: #FF3B30;

  /* Typography — Cartoony / Editorial */
  --font-display: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-ui: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Borders — Cartoony Sharp with Thick Outline */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 18px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Cartoony Retro Shadows */
  --shadow-sm: 2px 2px 0px #1A1A2E;
  --shadow-md: 4px 4px 0px #1A1A2E;
  --shadow-lg: 6px 6px 0px #1A1A2E;
  --shadow-xl: 8px 8px 0px #1A1A2E;
  --shadow-glow: 0px 0px 0px #1A1A2E;
  --shadow-glow-strong: 0px 0px 0px #1A1A2E;

  /* Transitions */
  --transition-fast: 100ms ease;
  --transition-base: 150ms ease;
  --transition-slow: 250ms ease;
  --transition-spring: 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Z-index */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 50;
  --z-header: 100;
  --z-modal: 1000;
}

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

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

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Selection */
::selection {
  background: rgba(99, 102, 241, 0.2);
  color: var(--text-primary);
}

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

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

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

/* ============================================
   Background Effects
   ============================================ */
/* Background effects removed — clean solid background only */
.bg-grid, .bg-glow, .bg-glow-secondary {
  display: none;
}

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  position: relative;
  z-index: var(--z-base);
}

.container-narrow {
  max-width: 900px;
}

.page-wrapper {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  padding-top: var(--space-8);
  padding-bottom: var(--space-16);
}

/* ============================================
   Header / Navigation
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: #FFFFFF;
  border-bottom: 2px solid var(--border-strong);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  font-size: var(--text-xl);
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-primary);
  border-radius: var(--radius-md);
  border: 2px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 900;
  color: white;
  box-shadow: var(--shadow-sm);
}

.logo {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.logo-text-gradient {
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
}

.nav-links a {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 700;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--accent-primary-glow);
  border-color: var(--accent-primary);
}

.nav-links a.active {
  color: var(--accent-primary);
}

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
  text-align: center;
  padding: var(--space-20) 0 var(--space-16);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--accent-yellow);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  box-shadow: var(--shadow-sm);
  letter-spacing: 0.01em;
}

.hero-badge-dot {
  font-size: 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  color: var(--text-primary);
}

.hero h1 .gradient-text {
  color: var(--accent-secondary);
  text-decoration: underline;
  text-decoration-color: var(--accent-primary);
  text-underline-offset: 6px;
  text-decoration-thickness: 4px;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}

/* ============================================
   Tool Cards Grid
   ============================================ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-6);
}

.tool-card {
  position: relative;
  background: var(--bg-card);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.tool-card::before {
  display: none;
}

.tool-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--border-strong);
  border-color: var(--accent-primary);
}

.tool-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  margin-bottom: var(--space-5);
  position: relative;
}

.tool-card-icon.purple {
  background: rgba(37, 99, 235, 0.1);
  border: 2px solid rgba(37, 99, 235, 0.3);
}

.tool-card-icon.cyan {
  background: rgba(255, 107, 53, 0.1);
  border: 2px solid rgba(255, 107, 53, 0.3);
}

.tool-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.tool-card p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.7;
  flex: 1;
}

.tool-card-arrow {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-accent);
  transition: gap var(--transition-fast);
}

.tool-card:hover .tool-card-arrow {
  gap: var(--space-3);
}

/* ============================================
   Tool Page Layout
   ============================================ */
.tool-header {
  text-align: center;
  padding: var(--space-12) 0 var(--space-8);
}

.tool-header h1 {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

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

.tool-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 900px;
  margin: 0 auto;
}

.tool-body.two-col {
  grid-template-columns: 1fr 1fr;
}

/* ============================================
   Glass Card
   ============================================ */
.glass-card {
  background: var(--bg-card);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.glass-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
}

.glass-card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ============================================
   Form Controls
   ============================================ */
textarea,
input[type="text"],
input[type="url"],
input[type="number"],
select {
  width: 100%;
  background: var(--bg-input);
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 200px;
  line-height: 1.7;
}

textarea:focus,
input[type="text"]:focus,
input[type="url"]:focus,
input[type="number"]:focus,
select:focus {
  background: var(--bg-input-focus);
  border-color: var(--accent-primary);
  box-shadow: 3px 3px 0px var(--accent-primary);
}

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

label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.input-group {
  margin-bottom: var(--space-4);
}

/* Color input */
input[type="color"] {
  -webkit-appearance: none;
  appearance: none;
  width: 48px;
  height: 48px;
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-md);
  cursor: pointer;
  background: none;
  padding: 2px;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: var(--radius-sm);
}

/* Range input */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-input);
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--accent-primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(124, 58, 237, 0.3);
  transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  cursor: pointer;
  border: 2px solid var(--border-strong);
  transition: all var(--transition-fast);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
}

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

.btn-primary:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0px var(--border-strong);
}

.btn-primary:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0px var(--border-strong);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 2px solid var(--border-medium);
  box-shadow: none;
}

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

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn-group {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* ============================================
   Stats Grid (Word Counter)
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-4);
}

.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  text-align: center;
  transition: all var(--transition-fast);
}

.stat-item:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.stat-value {
  font-size: var(--text-2xl);
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-primary);
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================
   QR Code Display
   ============================================ */
.qr-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
}

.qr-container {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-xl);
  margin-bottom: var(--space-6);
  transition: transform var(--transition-spring);
}

.qr-container:hover {
  transform: scale(1.02);
}

.qr-placeholder {
  width: 256px;
  height: 256px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: var(--text-sm);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border-medium);
}

/* ============================================
   RTL Layout Support (Arabic)
   ============================================ */
[dir="rtl"] {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  text-align: right;
}

[dir="rtl"] .nav-links {
  margin-right: auto;
  margin-left: 0;
}

[dir="rtl"] .logo {
  flex-direction: row-reverse;
}

[dir="rtl"] .faq-question {
  text-align: right;
}

[dir="rtl"] .faq-chevron {
  transform: rotate(0deg);
}

[dir="rtl"] .faq-item.open .faq-chevron {
  transform: rotate(180deg);
}

[dir="rtl"] .btn {
  flex-direction: row-reverse;
}

[dir="rtl"] .tool-card-arrow {
  flex-direction: row-reverse;
}

[dir="rtl"] .tool-card-arrow span {
  transform: scaleX(-1);
}

/* ============================================
   Keyword List (Word Counter)
   ============================================ */
.keywords-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.keyword-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

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

.keyword-word {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.keyword-count {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.keyword-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-input);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.keyword-bar-fill {
  height: 100%;
  background: var(--accent-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

/* ============================================
   Ad Slots
   ============================================ */
.ad-slot {
  position: relative;
  background: var(--bg-secondary);
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: var(--space-8) 0;
  overflow: hidden;
}

/* Premium indicator before ad loads */
.ad-slot::before {
  content: "ADVERTISEMENT";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.2em;
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

.ad-slot ins {
  position: relative;
  z-index: 1;
}

.ad-slot-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.ad-slot-sidebar {
  min-height: 250px;
}

.ad-slot-banner {
  min-height: 94px;
}

/* ============================================
   FAQ Section
   ============================================ */
.faq-section {
  margin-top: var(--space-16);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.faq-section h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-8);
  text-align: center;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--border-medium);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: var(--space-5) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  text-align: left;
}

.faq-question:hover {
  color: var(--text-accent);
}

.faq-chevron {
  transition: transform var(--transition-base);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.8;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-12) 0;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-text {
  color: var(--text-muted);
  font-size: var(--text-sm);
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links a {
  color: var(--text-muted);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text-accent);
}

@media (max-width: 600px) {
  .footer-inner {
    flex-direction: column;
    justify-content: center;
    text-align: center;
    gap: var(--space-4);
  }
  .footer-links {
    justify-content: center;
    gap: var(--space-4);
  }
}

/* ============================================
   Toast Notification
   ============================================ */
.toast {
  position: fixed;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  opacity: 0;
  transition: all var(--transition-base);
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast.success {
  border-color: rgba(34, 197, 94, 0.3);
  background: rgba(34, 197, 94, 0.1);
}

/* ============================================
   Animations
   ============================================ */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

.animate-fade-in-up {
  animation: fade-in-up 0.6s ease-out forwards;
}

.animate-fade-in {
  animation: fade-in 0.5s ease-out forwards;
}

.animate-scale-in {
  animation: scale-in 0.4s ease-out forwards;
}

.delay-1 { animation-delay: 100ms; }
.delay-2 { animation-delay: 200ms; }
.delay-3 { animation-delay: 300ms; }
.delay-4 { animation-delay: 400ms; }

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-mono { font-family: var(--font-mono); }
.text-gradient {
  color: var(--accent-primary);
}
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .hero h1 {
    font-size: var(--text-3xl);
  }

  .hero-subtitle {
    font-size: var(--text-base);
  }

  .tools-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .tool-body.two-col {
    grid-template-columns: 1fr;
  }

  .tool-header h1 {
    font-size: var(--text-2xl);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .header-inner {
    height: 56px;
    padding: 0 var(--space-4);
  }

  .nav-links {
    display: none;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 58px;
    left: 12px;
    right: 12px;
    background: #FFFFFF;
    border: 2px solid var(--border-strong);
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    z-index: 9998;
    gap: var(--space-1);
    align-items: stretch;
    box-shadow: 6px 6px 0px #1A1A2E;
    max-height: 80vh;
    overflow-y: auto;
    animation: dropdownFadeIn 0.15s ease;
  }

  @keyframes dropdownFadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .nav-links.open li {
    width: 100%;
    text-align: left;
  }

  .nav-links.open a {
    display: block;
    width: 100%;
    padding: 10px var(--space-4);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: var(--text-sm);
    transition: background 0.15s;
  }

  .nav-links.open a:hover,
  .nav-links.open a:active {
    background: var(--bg-secondary);
  }

  .mobile-menu-btn {
    display: block;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .container {
    padding: 0 var(--space-4);
    overflow-x: hidden;
  }
  
  /* Prevent large 728x90 banner iframe overflows on mobile devices */
  .ad-slot iframe,
  .ad-slot ins {
    max-width: 100% !important;
    height: auto !important;
    overflow-x: auto !important;
  }

  #filterTags {
    justify-content: flex-start;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: var(--space-2);
    -webkit-overflow-scrolling: touch;
    width: 100%;
  }

  #filterTags button {
    flex: 0 0 auto;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: var(--text-2xl);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
  }

  .stat-item {
    padding: var(--space-2);
  }

  .stat-value {
    font-size: var(--text-lg);
  }

  .btn-group {
    flex-direction: column;
    width: 100%;
  }

  .btn-group .btn {
    width: 100%;
  }
  
  .container {
    padding: 0 var(--space-3);
  }
}

/* ============================================
   Sleek Modern Tech Aesthetics
   ============================================ */

/* Sleek modern headings */
h1, h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h3, h4, h5, h6, .btn, .nav-links a, label, .hero-badge {
  font-family: var(--font-ui);
}

/* Hero — modern gradient banner */
.hero {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: var(--space-16) var(--space-8);
  margin-bottom: var(--space-12);
  position: relative;
  box-shadow: var(--shadow-md);
}

/* Hero badge — clean pill */
.hero-badge {
  display: inline-flex;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--accent-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

/* Hero h1 — big, confident, modern sans */
.hero h1 {
  font-size: var(--text-5xl);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero h1 .gradient-text {
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
}

/* Hero subtitle */
.hero-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.8;
}

/* Cards — clean modern elevation */
.tool-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-lg) !important;
  border-color: var(--accent-primary) !important;
}

/* Card title */
.tool-card h3 {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.01em;
}

/* Card description */
.tool-card p {
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--text-secondary);
}

/* Card arrow — sleek modern inline arrow */
.tool-card-arrow {
  color: var(--accent-primary);
  font-family: var(--font-ui);
  font-weight: 600;
}

/* Tool section heading */
.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-2xl);
  color: var(--text-primary);
  border-bottom: 2px solid var(--border-medium);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-6);
  display: inline-block;
}

/* Logo — modern clean type */
.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-xl);
  letter-spacing: -0.02em;
}

.logo-icon {
  background: var(--accent-gradient);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
}

/* Nav — clean */
.site-header {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-medium);
}

/* Footer — dark ink block */
.site-footer {
  background: var(--border-strong);
  color: #FFFFFF;
  border-top: none;
}

.site-footer a {
  color: var(--accent-yellow);
}

.site-footer a:hover {
  color: #FFFFFF;
}

/* Modern Glass Cards - sleek borders, soft drop shadows */
.glass-card {
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.85);
}

/* Progress bar — sleek indicator */
.progress-fill {
  background: var(--accent-gradient) !important;
}

/* Inputs — modern sleek focus states */
textarea:focus,
input[type="text"]:focus,
input[type="url"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

/* Modern clean card layouts (removed all flat colored shadows) */
.tool-card {
  border: 1px solid var(--border-medium) !important;
  box-shadow: var(--shadow-sm) !important;
  background-color: #FFFFFF !important;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast) !important;
}
.tool-card:hover {
  transform: translateY(-3px) !important;
  box-shadow: var(--shadow-lg) !important;
  border-color: var(--accent-primary) !important;
}

/* Modern list item styles */
#tool-word, #card-word-counter,
#tool-base64, #card-base64,
#tool-case, #tool-uuid, #tool-hash, #tool-img-b64,
#tool-qr, #card-qr-generator,
#tool-ai-detector, #card-ai-detector,
#tool-lorem, #card-lorem,
#tool-regex-tester, #tool-epoch, #tool-svg, #tool-cron,
#tool-password, #card-password-generator,
#tool-compressor, #tool-css, #tool-json-yaml, #tool-csv-json,
#tool-json, #card-json-formatter,
#tool-pdf, #card-pdf-converter,
#tool-thumbnail, #tool-url-parser, #tool-markdown,
#tool-html-enc, #tool-jwt, #tool-url, #tool-diff,
#related-word, #related-uuid, #related-qr, #related-password, #related-jwt, #related-diff {
  box-shadow: var(--shadow-sm) !important;
  background-color: #FFFFFF !important;
}
#tool-word:hover, #card-word-counter:hover,
#tool-base64:hover, #card-base64:hover,
#tool-case:hover, #tool-uuid:hover, #tool-hash:hover, #tool-img-b64:hover,
#tool-qr:hover, #card-qr-generator:hover,
#tool-ai-detector:hover, #card-ai-detector:hover,
#tool-lorem:hover, #card-lorem:hover,
#tool-regex-tester:hover, #tool-epoch:hover, #tool-svg:hover, #tool-cron:hover,
#tool-password:hover, #card-password-generator:hover,
#tool-compressor:hover, #tool-css:hover, #tool-json-yaml:hover, #tool-csv-json:hover,
#tool-json:hover, #card-json-formatter:hover,
#tool-pdf:hover, #card-pdf-converter:hover,
#tool-thumbnail:hover, #tool-url-parser:hover, #tool-markdown:hover,
#tool-html-enc:hover, #tool-jwt:hover, #tool-url:hover, #tool-diff:hover,
#related-word:hover, #related-uuid:hover, #related-qr:hover, #related-password:hover, #related-jwt:hover, #related-diff:hover {
  box-shadow: var(--shadow-lg) !important;
  border-color: var(--accent-primary) !important;
  background-color: #FFFFFF !important;
}

/* ============================================
   Editorial Article Styles (Modern Tech Style)
   ============================================ */
.blog-post {
  line-height: 1.8;
  color: var(--text-primary);
}
.blog-post h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-8);
  font-weight: 800;
}
.blog-post h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  font-weight: 700;
  color: var(--text-primary);
}
.blog-post p {
  margin-bottom: var(--space-6);
  font-size: 1.05rem;
}

/* Comparison Table */
.comparison-table-wrapper {
  margin: var(--space-8) 0;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-sm);
}
.editorial-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
[dir="rtl"] .editorial-table {
  text-align: right;
}
.editorial-table th {
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-weight: 700;
  padding: var(--space-4);
  border-bottom: 2px solid var(--border-medium);
}
.editorial-table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: var(--text-sm);
}
.editorial-table tr:last-child td {
  border-bottom: none;
}
.editorial-table tr.highlight-row {
  background: rgba(99, 102, 241, 0.04);
}
.editorial-table tr.highlight-row td {
  color: var(--accent-primary);
  font-weight: 700;
}

/* Root Showcase Grid */
.root-showcase {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-8) 0;
  border: 1px solid var(--border-medium);
}
.root-header {
  font-weight: 800;
  margin-bottom: var(--space-6);
  font-size: var(--text-base);
  color: var(--text-primary);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}
.root-badge {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  font-weight: 800;
  color: var(--accent-primary);
}
.root-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-4);
}
.root-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  box-shadow: var(--shadow-sm);
}
.root-item strong {
  font-size: var(--text-lg);
  color: var(--accent-primary);
}
.root-item span {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

/* CTA Highlight Box */
.article-cta-box {
  background: var(--bg-card);
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  margin: var(--space-8) 0;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
[dir="rtl"] .article-cta-box {
  border-left: none;
  border-right: 4px solid var(--accent-primary);
}
.article-cta-icon {
  font-size: 2rem;
  flex-shrink: 0;
}
.article-cta-content {
  flex-grow: 1;
}
.article-cta-title {
  font-weight: 800;
  font-size: var(--text-base);
  margin-bottom: var(--space-1);
}
.article-cta-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin: 0;
}
.article-cta-link {
  color: var(--accent-primary);
  font-weight: 700;
  text-decoration: none;
}
.article-cta-link:hover {
  text-decoration: underline;
}