/* ==========================================================================
   WHISKEYTICS - GLOBAL STYLESHEET
   Path: /assets/css/global.css
   
   Enterprise-grade CSS with:
   - Design token system
   - Accessible components
   - Responsive layouts
   - Performance optimized
   - Zero external dependencies
   ========================================================================== */

/* ==========================================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ========================================================================== */

:root {
  /* ===== COLOR PALETTE ===== */
  --color-primary: #D4AF37;        /* Gold - Primary brand color */
  --color-primary-dark: #B8941F;   /* Darker gold for hover states */
  --color-primary-light: #E8D488;  /* Light gold for backgrounds */
  --color-secondary: #1A1A1A;      /* Near black for text */
  --color-accent: #FF6B35;         /* Coral accent for highlights */
  
  /* ===== NEUTRAL GRAYS ===== */
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;
  
  /* ===== SEMANTIC COLORS ===== */
  --color-success: #10B981;        /* Green for success messages */
  --color-warning: #F59E0B;        /* Orange for warnings */
  --color-error: #EF4444;          /* Red for errors */
  --color-info: #3B82F6;           /* Blue for info */
  
  /* ===== BACKGROUND & TEXT ===== */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F9FAFB;
  --color-bg-dark: #1A1A1A;
  --color-text-primary: #111827;
  --color-text-secondary: #6B7280;
  --color-text-inverse: #FFFFFF;
  
  /* ===== TYPOGRAPHY ===== */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Courier New', monospace;
  
  /* Font Sizes (Responsive) */
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  
  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* ===== SPACING SCALE ===== */
  --spacing-xs: 0.25rem;        /* 4px */
  --spacing-sm: 0.5rem;         /* 8px */
  --spacing-md: 1rem;           /* 16px */
  --spacing-lg: 1.5rem;         /* 24px */
  --spacing-xl: 2rem;           /* 32px */
  --spacing-2xl: 3rem;          /* 48px */
  --spacing-3xl: 4rem;          /* 64px */
  --spacing-4xl: 6rem;          /* 96px */
  
  /* ===== BORDER RADIUS ===== */
  --radius-sm: 0.25rem;         /* 4px */
  --radius-md: 0.5rem;          /* 8px */
  --radius-lg: 0.75rem;         /* 12px */
  --radius-xl: 1rem;            /* 16px */
  --radius-2xl: 1.5rem;         /* 24px */
  --radius-full: 9999px;        /* Fully rounded */
  
  /* ===== 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);
  --shadow-gold: 0 4px 14px 0 rgba(212, 175, 55, 0.25);
  
  /* ===== TRANSITIONS ===== */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* ===== Z-INDEX SCALE ===== */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* ===== LAYOUT ===== */
  --container-max-width: 1280px;
  --container-padding: 1.5rem;
  --header-height: 70px;
}

/* ==========================================================================
   2. RESET & BASE STYLES
   ========================================================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

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

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

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

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

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

strong, b {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* ==========================================================================
   4. LAYOUT CONTAINERS
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.site-main {
  min-height: calc(100vh - var(--header-height));
  padding-top: var(--header-height);
}

/* ==========================================================================
   5. HEADER & NAVIGATION
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--color-gray-200);
  z-index: var(--z-sticky);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--spacing-lg);
}

/* Logo */
.nav-brand {
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.02);
  color: var(--color-secondary);
}

.logo-image {
  display: block;
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.logo-text {
  color: var(--color-secondary);
  font-size: var(--font-size-xl);
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

.nav-link.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: var(--spacing-md);
  right: var(--spacing-md);
  height: 2px;
  background-color: var(--color-primary);
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  border-radius: var(--radius-md);
}

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

.nav-toggle-icon {
  position: relative;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-base);
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-base);
}

.nav-toggle-icon::before {
  top: -8px;
}

.nav-toggle-icon::after {
  bottom: -8px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  bottom: 0;
  transform: rotate(-45deg);
}

/* ==========================================================================
   6. HERO SECTION
   ========================================================================== */

.hero {
  background: linear-gradient(135deg, #F9FAFB 0%, #FFFFFF 100%);
  padding: var(--spacing-4xl) 0 var(--spacing-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 150%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--line-height-relaxed);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2xl);
}

/* Data Byte Widget */
.data-byte {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: rgba(212, 175, 55, 0.1);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: var(--radius-xl);
  margin-top: var(--spacing-xl);
}

.data-byte-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.data-byte-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  margin: 0;
  text-align: left;
}

/* ==========================================================================
   7. BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(212, 175, 55, 0.35);
  color: var(--color-secondary);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-text-inverse);
}

.btn-secondary:hover {
  background-color: var(--color-gray-800);
  transform: translateY(-2px);
  color: var(--color-text-inverse);
}

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

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  transform: translateY(-2px);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

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

/* ==========================================================================
   8. SECTIONS
   ========================================================================== */

section {
  padding: var(--spacing-4xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin: 0;
}

.section-cta {
  text-align: center;
  margin-top: var(--spacing-3xl);
}

/* ==========================================================================
   9. GRIDS
   ========================================================================== */

.tools-grid,
.category-grid,
.features-grid {
  display: grid;
  gap: var(--spacing-xl);
}

.tools-grid {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.category-grid {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

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

/* ==========================================================================
   10. TOOL CARDS
   ========================================================================== */

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xl);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

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

.tool-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, rgba(212, 175, 55, 0.05) 100%);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
}

.tool-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}

.tool-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  flex-grow: 1;
  line-height: var(--line-height-relaxed);
}

.tool-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  margin-top: auto;
}

.tool-link svg {
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-link svg {
  transform: translateX(4px);
}

/* ==========================================================================
   11. CATEGORY CARDS
   ========================================================================== */

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-2xl);
  background-color: var(--color-bg-primary);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  text-decoration: none;
}

.category-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.category-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-xl);
  color: var(--color-secondary);
}

.category-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-xs);
}

.category-count {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.category-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

/* ==========================================================================
   12. FEATURE CARDS
   ========================================================================== */

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-xl);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-lg);
  background-color: rgba(212, 175, 55, 0.1);
  border-radius: var(--radius-full);
  color: var(--color-primary);
}

.feature-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}

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

/* ==========================================================================
   13. FOOTER
   ========================================================================== */

.site-footer {
  background-color: var(--color-bg-dark);
  color: var(--color-gray-300);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.footer-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.footer-brand-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-inverse);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  margin: 0;
}

.footer-heading {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-inverse);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-lg);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-gray-700);
  text-align: center;
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-md);
}

.footer-privacy-note {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

.footer-privacy-note a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ==========================================================================
   14. AD CONTAINERS (Non-intrusive)
   ========================================================================== */

.ad-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: var(--spacing-3xl) auto;
  padding: 0 var(--container-padding);
}

.ad-placeholder {
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-gray-50);
  border: 1px dashed var(--color-gray-300);
  border-radius: var(--radius-md);
  position: relative;
}

.ad-label {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
}

/* Horizontal Banner */
.ad-horizontal .ad-placeholder {
  min-height: 100px;
}

/* Vertical Sidebar */
.ad-sidebar .ad-placeholder {
  min-height: 250px;
}

/* ==========================================================================
   15. UTILITY CLASSES
   ========================================================================== */

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-gray-500); }

/* Spacing Utilities */
.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* Display Utilities */
.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }

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

/* Loading State */
.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 24px;
  height: 24px;
  margin: -12px 0 0 -12px;
  border: 3px solid var(--color-gray-300);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ==========================================================================
   16. ANIMATIONS
   ========================================================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.animate-fade-in {
  animation: fadeIn var(--transition-base) ease-out;
}

.animate-slide-up {
  animation: slideUp var(--transition-base) ease-out;
}

.animate-slide-down {
  animation: slideDown var(--transition-base) ease-out;
}

/* ==========================================================================
   17. RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* Tablets and below (768px) */
@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
    --header-height: 60px;
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
  }
  
  .nav-links {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero {
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .tools-grid,
  .category-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  section {
    padding: var(--spacing-3xl) 0;
  }
}

/* Mobile (480px) */
@media (max-width: 480px) {
  .hero {
    padding: var(--spacing-2xl) 0;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .data-byte {
    flex-direction: column;
    text-align: center;
  }
}

/* ==========================================================================
   18. PRINT STYLES
   ========================================================================== */

@media print {
  .site-header,
  .site-footer,
  .nav-toggle,
  .ad-container,
  .btn {
    display: none !important;
  }
  
  body {
    color: #000;
    background: #fff;
  }
  
  a {
    text-decoration: underline;
  }
}

/* ==========================================================================
   19. ACCESSIBILITY ENHANCEMENTS
   ========================================================================== */

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

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #D4AF37;
    --color-text-primary: #000000;
    --color-text-secondary: #333333;
  }
}

/* Focus Visible Enhancement */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ==========================================================================
   END OF GLOBAL STYLESHEET
   ========================================================================== */