/* ==========================================================================
   VNX SnapTools - Global Styles
   ========================================================================== */

/* CSS Custom Properties (Variables) */
:root {
  /* Theme Colors - Light Mode */
  --color-primary: #0070f3;
  --color-primary-dark: #005ac1;
  --color-primary-light: #e0f0ff;
  --color-secondary: #64748b;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --bg-accent: #e5e7eb;
  
  /* Text Colors */
  --text-primary: #111827;
  --text-secondary: #374151;
  --text-tertiary: #6b7280;
  --text-muted: #9ca3af;
  
  /* Border Colors */
  --border-primary: #e5e7eb;
  --border-secondary: #d1d5db;
  --border-accent: #9ca3af;
  
  /* Shadow Colors */
  --shadow-light: rgba(0, 0, 0, 0.06);
  --shadow-medium: rgba(0, 0, 0, 0.1);
  --shadow-dark: rgba(0, 0, 0, 0.15);
  
  /* Legacy Colors for Compatibility */
  --color-white: var(--bg-primary);
  --color-gray-50: var(--bg-secondary);
  --color-gray-100: var(--bg-tertiary);
  --color-gray-200: var(--bg-accent);
  --color-gray-300: var(--border-secondary);
  --color-gray-400: var(--text-muted);
  --color-gray-500: var(--text-tertiary);
  --color-gray-600: var(--text-secondary);
  --color-gray-700: var(--text-secondary);
  --color-gray-800: var(--text-primary);
  --color-gray-900: var(--text-primary);
}

/* Dark Mode Theme */
[data-theme="dark"] {
  /* Background Colors */
  --bg-primary: #0f1419;
  --bg-secondary: #1a1f2e;
  --bg-tertiary: #252a3a;
  --bg-accent: #2d3748;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #e2e8f0;
  --text-tertiary: #a0aec0;
  --text-muted: #718096;
  
  /* Border Colors */
  --border-primary: #2d3748;
  --border-secondary: #4a5568;
  --border-accent: #718096;
  
  /* Shadow Colors */
  --shadow-light: rgba(0, 0, 0, 0.3);
  --shadow-medium: rgba(0, 0, 0, 0.4);
  --shadow-dark: rgba(0, 0, 0, 0.5);
  
  /* Update Legacy Colors */
  --color-white: var(--bg-primary);
  --color-gray-50: var(--bg-secondary);
  --color-gray-100: var(--bg-tertiary);
  --color-gray-200: var(--bg-accent);
  --color-gray-300: var(--border-secondary);
  --color-gray-400: var(--text-muted);
  --color-gray-500: var(--text-tertiary);
  --color-gray-600: var(--text-secondary);
  --color-gray-700: var(--text-secondary);
  --color-gray-800: var(--text-primary);
  --color-gray-900: var(--text-primary);
}
  
  /* Typography */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --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;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* Layout */
  --max-width-container: 1200px;
  --nav-height: 4rem;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.container {
  max-width: var(--max-width-container);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--bg-primary);
  box-shadow: 0 1px 4px var(--shadow-light);
  border-bottom: 1px solid var(--border-primary);
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

/* Left Logo and Nav Links */
.nav-left {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.nav-left a.logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-right: 20px;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-left a.nav-link {
  margin-right: 16px;
  text-decoration: none;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: 6px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.nav-left a.nav-link:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.nav-left a.nav-link.active,
.nav-link.active {
  background-color: #e0f0ff;
  color: #0070f3;
  font-weight: 600;
  border-radius: 4px;
}

[data-theme="dark"] .nav-left a.nav-link.active,
[data-theme="dark"] .nav-link.active {
  background-color: rgba(0, 112, 243, 0.2);
  color: #4da6ff;
}

/* Right Side Buttons and Dropdown */
.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-right .btn {
  padding: 6px 14px;
  border: none;
  border-radius: 6px;
  background: var(--color-primary);
  color: white;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
  text-decoration: none;
}

.nav-right .btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.nav-right select {
  padding: 6px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-secondary);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.nav-right select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* Dark Mode Toggle Button */
.theme-toggle {
  padding: 6px 8px;
  border: 1px solid var(--border-secondary);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 36px;
}

.theme-toggle:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-accent);
  transform: scale(1.05);
}

.theme-toggle:active {
  transform: scale(0.95);
}

/* ==========================================================================
   Interactive Tooltips
   ========================================================================== */

.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip-content {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.875rem;
  white-space: nowrap;
  border: 1px solid var(--border-secondary);
  box-shadow: 0 4px 12px var(--shadow-medium);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  margin-bottom: 8px;
  max-width: 250px;
  white-space: normal;
  text-align: center;
  line-height: 1.4;
}

.tooltip-content::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--bg-primary);
}

.tooltip-content::before {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--border-secondary);
  margin-top: -1px;
}

.tooltip:hover .tooltip-content {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-4px);
}

/* Tooltip variations for different positions */
.tooltip-top .tooltip-content {
  bottom: 100%;
  margin-bottom: 8px;
}

.tooltip-bottom .tooltip-content {
  top: 100%;
  bottom: auto;
  margin-top: 8px;
  margin-bottom: 0;
}

.tooltip-bottom .tooltip-content::after {
  top: -5px;
  border-top-color: transparent;
  border-bottom-color: var(--bg-primary);
}

.tooltip-bottom .tooltip-content::before {
  top: -6px;
  border-top-color: transparent;
  border-bottom-color: var(--border-secondary);
  margin-top: 0;
}

/* Enhanced tooltips for navigation links */
.nav-link-tooltip {
  position: relative;
}

.nav-link-tooltip .tooltip-content {
  bottom: auto;
  top: 100%;
  margin-top: 12px;
  font-size: 0.8rem;
  padding: 6px 10px;
  max-width: 200px;
}

.nav-link-tooltip:hover .tooltip-content {
  transform: translateX(-50%) translateY(4px);
}

/* ==========================================================================
   Enhanced Hover Animations
   ========================================================================== */

.tool-card {
  transition: all 0.3s ease;
}

.tool-card:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Responsive Navigation
   ========================================================================== */

@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px;
  }

  .nav-left,
  .nav-right {
    width: 100%;
    flex-direction: column;
    gap: 8px;
  }

  .nav-left a,
  .nav-right a,
  .nav-right select {
    width: 100%;
    text-align: left;
  }

  .logo {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
  }

  .tooltip {
    display: block;
    margin-bottom: var(--spacing-xs);
    width: 100%;
  }

  .tooltip .nav-link {
    display: block;
    width: 100%;
  }

  /* Mobile grid adjustments */
  .grid {
    grid-template-columns: 1fr !important;
  }
}

/* ==========================================================================
   Improved Layout Spacing
   ========================================================================== */

/* Consistent container spacing */
.max-w-7xl {
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .max-w-7xl {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .max-w-7xl {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* Better section spacing */
.py-8 {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.mb-8 {
  margin-bottom: 2rem;
}

.mt-16 {
  margin-top: 4rem;
}

@media (min-width: 1024px) {
  .nav__menu {
    display: flex;
  }
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav__link:hover {
  color: var(--color-primary);
  background-color: var(--color-gray-50);
}

.nav__link--active {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  background-color: rgba(59, 130, 246, 0.1);
}

.nav__link--disabled {
  color: var(--color-gray-400);
  cursor: not-allowed;
}

.nav__link--disabled:hover {
  color: var(--color-gray-400);
  background-color: transparent;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.nav__toggle:hover {
  background-color: var(--color-gray-100);
}

.nav__toggle-line {
  width: 20px;
  height: 2px;
  background-color: var(--color-gray-600);
  transition: all var(--transition-fast);
}

@media (min-width: 1024px) {
  .nav__toggle {
    display: none;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
}

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

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

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

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

.btn--large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn:disabled:hover {
  transform: none;
  box-shadow: none;
}

/* ==========================================================================
   Language Selector
   ========================================================================== */

.language-selector {
  position: relative;
}

.language-selector__dropdown {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  color: var(--color-gray-700);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.language-selector__dropdown:hover,
.language-selector__dropdown:focus {
  border-color: var(--color-primary);
  outline: none;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  padding-top: calc(var(--nav-height) + var(--spacing-3xl));
  padding-bottom: var(--spacing-3xl);
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
  text-align: center;
}

.hero__container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--font-size-5xl);
  }
}

.hero__tagline {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
  .hero__tagline {
    font-size: var(--font-size-2xl);
  }
}

.hero__description {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   Page Header
   ========================================================================== */

.page-header {
  padding-top: calc(var(--nav-height) + var(--spacing-2xl));
  padding-bottom: var(--spacing-2xl);
  background-color: var(--color-gray-50);
  text-align: center;
}

.page-header__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
  .page-header__title {
    font-size: var(--font-size-4xl);
  }
}

.page-header__description {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   Main Content
   ========================================================================== */

.main {
  padding: var(--spacing-2xl) 0;
  min-height: calc(100vh - var(--nav-height) - 200px);
}

/* ==========================================================================
   Tools Section
   ========================================================================== */

.tools {
  text-align: center;
}

.tools__title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .tools__title {
    font-size: var(--font-size-3xl);
  }
}

.tools__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .tools__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* ==========================================================================
   Tool Cards
   ========================================================================== */

.tool-card {
  display: block;
  padding: var(--spacing-xl);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-light);
}

.tool-card--available:hover {
  border-color: var(--color-primary);
}

.tool-card--coming-soon {
  opacity: 0.7;
  cursor: default;
}

.tool-card--coming-soon:hover {
  transform: none;
  box-shadow: var(--shadow-sm);
  border-color: var(--color-gray-200);
}

.tool-card__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary-light);
  background-color: rgba(59, 130, 246, 0.1);
  border-radius: var(--radius-xl);
  color: var(--color-primary);
  transition: all var(--transition-normal);
}

.tool-card:hover .tool-card__icon {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.tool-card--coming-soon .tool-card__icon {
  background-color: var(--color-gray-100);
  color: var(--color-gray-400);
}

.tool-card--coming-soon:hover .tool-card__icon {
  background-color: var(--color-gray-100);
  color: var(--color-gray-400);
}

.tool-card__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
}

.tool-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.tool-card__status {
  margin-top: auto;
}

/* ==========================================================================
   Status Badges
   ========================================================================== */

.status-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-lg);
}

.status-badge--available {
  background-color: var(--color-success);
  color: var(--color-white);
}

.status-badge--coming-soon {
  background-color: var(--color-gray-200);
  color: var(--color-gray-600);
}

/* ==========================================================================
   Upload Section
   ========================================================================== */

.upload-section {
  margin-bottom: var(--spacing-2xl);
}

.upload-area {
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  text-align: center;
  background-color: var(--color-gray-50);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.upload-area:hover,
.upload-area--dragover {
  border-color: var(--color-primary);
  background-color: rgba(59, 130, 246, 0.05);
}

.upload-area__content {
  max-width: 400px;
  margin: 0 auto;
}

.upload-area__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-400);
}

.upload-area:hover .upload-area__icon,
.upload-area--dragover .upload-area__icon {
  color: var(--color-primary);
}

.upload-area__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}

.upload-area__subtitle {
  font-size: var(--font-size-base);
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-lg);
}

.upload-area__note {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-top: var(--spacing-lg);
}

/* ==========================================================================
   Processing Section
   ========================================================================== */

.processing-section {
  max-width: 800px;
  margin: 0 auto;
}

.image-info {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.image-info__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
}

.image-info__details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

@media (min-width: 640px) {
  .image-info__details {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.image-info__filename {
  font-weight: 500;
  color: var(--color-gray-700);
}

.image-info__size {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

/* ==========================================================================
   Compression Controls
   ========================================================================== */

.compression-controls {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.compression-controls__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-lg);
}

.slider-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

@media (min-width: 640px) {
  .slider-container {
    flex-direction: row;
    align-items: center;
  }
}

.slider-container__label {
  font-weight: 500;
  color: var(--color-gray-700);
  min-width: 80px;
}

.slider-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
}

.slider {
  flex: 1;
  height: 6px;
  border-radius: var(--radius-lg);
  background: var(--color-gray-200);
  outline: none;
  appearance: none;
}

.slider::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slider::-webkit-slider-thumb:hover {
  background: var(--color-primary-dark);
  transform: scale(1.1);
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
}

.slider::-moz-range-thumb:hover {
  background: var(--color-primary-dark);
  transform: scale(1.1);
}

.slider-value {
  font-weight: 600;
  color: var(--color-primary);
  min-width: 40px;
  text-align: center;
}

/* ==========================================================================
   Preview Section
   ========================================================================== */

.preview-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.preview-section__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-lg);
}

.comparison-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .comparison-container {
    grid-template-columns: 1fr 1fr;
  }
}

.comparison-item__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.image-preview {
  position: relative;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-gray-50);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.image-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-gray-200);
  border-top: 3px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.image-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
}

.image-stats__label {
  color: var(--color-gray-600);
}

.image-stats__value {
  font-weight: 600;
  color: var(--color-gray-900);
}

/* ==========================================================================
   Compression Results
   ========================================================================== */

.compression-results {
  margin-top: var(--spacing-xl);
  text-align: center;
}

.results-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background-color: var(--color-gray-50);
  border-radius: var(--radius-lg);
}

@media (min-width: 640px) {
  .results-card {
    grid-template-columns: 1fr 1fr;
  }
}

.results-card__item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  text-align: center;
}

.results-card__label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.results-card__value {
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.results-card__value--highlight {
  color: var(--color-primary);
}

.results-card__value--success {
  color: var(--color-success);
}

/* ==========================================================================
   Ads Placeholder
   ========================================================================== */

.adsense-slot {
  margin: var(--spacing-2xl) 0;
  text-align: center;
}

.ad-placeholder {
  width: 100%;
  height: 200px;
  background-color: var(--color-gray-100);
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
}



/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-primary);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-2xl);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.footer__container {
  max-width: var(--max-width-container);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__container {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__text {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

.footer__link {
  color: var(--color-primary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 1023px) {
  .nav__menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--spacing-lg);
    flex-direction: column;
    gap: var(--spacing-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }
  
  .nav__menu--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav__actions {
    gap: var(--spacing-sm);
  }
  
  .nav__actions .btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
  }
}

@media (max-width: 639px) {
  .hero__title {
    font-size: var(--font-size-3xl);
  }
  
  .hero__tagline {
    font-size: var(--font-size-lg);
  }
  
  .page-header__title {
    font-size: var(--font-size-2xl);
  }
  
  .tools__title {
    font-size: var(--font-size-xl);
  }
  
  .upload-area {
    padding: var(--spacing-xl);
  }
  
  .upload-area__icon {
    width: 60px;
    height: 60px;
  }
}

/* ==========================================================================
   Dark Mode Support (Future Enhancement)
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  /* Dark mode styles can be added here for future enhancement */
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  .nav,
  .footer,
  .adsense-slot {
    display: none;
  }
  
  .main {
    padding-top: 0;
  }
}

/* ==========================================================================
   Accessibility Enhancements
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-gray-300: #666666;
    --color-gray-400: #555555;
    --color-gray-500: #444444;
  }
}

/* ==========================================================================
   Enhanced Tool Styles
   ========================================================================== */

/* Premium Button Styles */
.btn--premium {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn--premium:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn--premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn--premium:hover::before {
    left: 100%;
}

/* Footer copyright */
.footer__content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer__copyright {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

/* Tool header */
.tool-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, #667eea 100%);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.tool-header__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 1rem 0;
}

.tool-header__description {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.tool-section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* PDF Converter Styles */
.pdf-operations {
    margin: 2rem 0;
}

.operation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.operation-card {
    background: white;
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.operation-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.operation-card--active {
    border-color: var(--color-primary);
    background: rgba(55, 125, 255, 0.05);
}

.operation-card__icon {
    color: var(--color-primary);
}

.operation-card h4 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.operation-card p {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.file-list {
    margin: 2rem 0;
}

.file-list__container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.file-item__info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-item__icon {
    color: var(--color-primary);
}

.file-item__details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.file-item__name {
    font-weight: 500;
}

.file-item__size {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.file-item__remove {
    background: none;
    border: none;
    color: var(--color-danger);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.file-item__remove:hover {
    background: rgba(220, 53, 69, 0.1);
}

.processing-options {
    margin: 2rem 0;
}

.options-panel {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.option-label {
    font-weight: 500;
    color: var(--color-text);
}

.option-select,
.option-input,
.option-range {
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 1rem;
}

.option-range {
    padding: 0;
}

.range-value {
    font-weight: 500;
    color: var(--color-primary);
}

.btn--process {
    width: 100%;
    margin-top: 1rem;
}

/* Password Generator Styles */
.generator-panel {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.generator-panel__title {
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.length-control {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.length-slider {
    flex: 1;
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    outline: none;
    appearance: none;
}

.length-slider::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
}

.length-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.length-display {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-primary);
    min-width: 2rem;
    text-align: center;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-radius: 3px;
    position: relative;
    transition: all 0.2s;
}

.checkbox-item input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox-item input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.btn--generate {
    width: 100%;
    margin-top: 2rem;
}

.password-result {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.password-result__title {
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.password-display {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.password-field {
    display: flex;
    gap: 0.5rem;
}

.password-input {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 1.125rem;
    background: var(--color-background);
}

.btn--copy {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.strength-indicator {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.strength-label {
    font-weight: 500;
}

.strength-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    transition: width 0.3s, background-color 0.3s;
}

.strength-fill--very-weak { background: #dc3545; }
.strength-fill--weak { background: #fd7e14; }
.strength-fill--medium { background: #ffc107; }
.strength-fill--strong { background: #28a745; }
.strength-fill--very-strong { background: #17a2b8; }

.strength-text {
    font-weight: 600;
    font-size: 0.875rem;
}

.strength-text--very-weak { color: #dc3545; }
.strength-text--weak { color: #fd7e14; }
.strength-text--medium { color: #ffc107; }
.strength-text--strong { color: #28a745; }
.strength-text--very-strong { color: #17a2b8; }

.password-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    padding: 1rem;
    background: var(--color-background);
    border-radius: 8px;
}

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

.stat-label {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.stat-value {
    font-weight: 600;
    color: var(--color-text);
}

.multiple-passwords {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.multiple-controls {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    align-items: center;
}

.password-count-select {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.password-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}

.password-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.password-item__text {
    font-family: 'Courier New', monospace;
    font-size: 1rem;
}

.password-item__copy {
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.password-item__copy:hover {
    background: rgba(55, 125, 255, 0.1);
}

/* Word Counter Styles */
.text-input-panel {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.input-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.input-actions {
    display: flex;
    gap: 0.5rem;
}

.btn--clear,
.btn--paste {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.text-input {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.5;
    resize: vertical;
    transition: border-color 0.2s;
}

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

.input-footer {
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-upload-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    cursor: pointer;
    font-size: 0.875rem;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.file-upload-label:hover {
    background: rgba(55, 125, 255, 0.1);
}

.stats-panel {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.stats-title {
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-card--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, #667eea 100%);
    color: white;
    border: none;
}

.stat-card--reading {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    border: none;
}

.stat-icon {
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.stat-card:not(.stat-card--primary):not(.stat-card--reading) .stat-icon {
    color: var(--color-primary);
}

.stat-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

.stat-card:not(.stat-card--primary):not(.stat-card--reading) .stat-label {
    color: var(--color-text-secondary);
}

.analysis-panel {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.analysis-title {
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.analysis-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
}

.tab-btn {
    background: none;
    border: none;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: var(--color-primary);
}

.tab-btn--active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-panel {
    display: none;
}

.tab-panel--active {
    display: block;
}

.frequency-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.frequency-item {
    display: grid;
    grid-template-columns: 100px 1fr 40px;
    align-items: center;
    gap: 1rem;
}

.frequency-word {
    font-weight: 500;
    color: var(--color-text);
}

.frequency-bar {
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
}

.frequency-fill {
    height: 100%;
    background: var(--color-primary);
    transition: width 0.3s;
}

.frequency-count {
    font-weight: 600;
    color: var(--color-text-secondary);
    text-align: right;
}

.readability-scores {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.readability-score {
    text-align: center;
    padding: 1rem;
    background: var(--color-background);
    border-radius: 8px;
}

.score-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.score-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.score-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.keywords-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.keyword-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s;
}

.keyword-tag:hover {
    transform: scale(1.05);
}

/* QR Generator Styles */
.qr-input-panel {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.panel-title {
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.content-type-selector {
    margin-bottom: 2rem;
}

.type-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    background: var(--color-background);
    padding: 0.25rem;
    border-radius: 8px;
}

.type-tab {
    background: none;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all 0.2s;
    flex: 1;
    min-width: fit-content;
}

.type-tab:hover {
    color: var(--color-primary);
    background: rgba(55, 125, 255, 0.1);
}

.type-tab--active {
    background: var(--color-primary);
    color: white;
}

.input-forms {
    margin: 1.5rem 0;
}

.input-form {
    display: none;
}

.input-form--active {
    display: block;
}

.qr-input,
.qr-textarea,
.qr-select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: border-color 0.2s;
}

.qr-input:focus,
.qr-textarea:focus,
.qr-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.qr-textarea {
    resize: vertical;
    min-height: 80px;
}

.vcard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.vcard-grid .qr-textarea {
    grid-column: 1 / -1;
}

.qr-display-panel {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.qr-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.qr-code-container {
    position: relative;
    display: inline-block;
}

.qr-canvas {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    max-width: 100%;
    height: auto;
}

.qr-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    text-align: center;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.info-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.info-value {
    font-weight: 600;
    color: var(--color-text);
}

.qr-customization {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--color-background);
    border-radius: 8px;
}

.customize-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.customize-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.customize-group label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-text);
}

.customize-select {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.color-input-group {
    display: flex;
    gap: 0.5rem;
}

.color-input {
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    cursor: pointer;
}

.hex-input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: monospace;
}

.qr-download {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.download-options {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.download-options .btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    justify-content: center;
    min-width: 120px;
}

/* Results Styles */
.results-section {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.results-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.result-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.result-icon {
    color: var(--color-success);
    flex-shrink: 0;
}

.result-details {
    flex: 1;
}

.result-details h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.result-details p {
    margin: 0 0 0.5rem 0;
    color: var(--color-text-secondary);
}

.result-stats {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.result-stats span {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.result-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* Enhanced mobile responsiveness for new features */
@media (max-width: 768px) {
    .tool-header__title {
        font-size: 2rem;
    }

    .tool-header__description {
        font-size: 1rem;
    }

    .operation-grid {
        grid-template-columns: 1fr;
    }

    .options-grid {
        grid-template-columns: 1fr;
    }

    .customize-grid {
        grid-template-columns: 1fr;
    }

    .download-options {
        flex-direction: column;
    }

    .download-options .btn {
        flex: none;
    }

    .result-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .result-actions {
        flex-direction: column;
        width: 100%;
    }

    .type-tabs {
        flex-direction: column;
    }

    .type-tab {
        flex: none;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .input-header {
        flex-direction: column;
        align-items: flex-start;
    }

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