/* ============================================
   Automotive Calculator Hub - Design System
   Premium, Modern, Mobile-First
   ============================================ */

/* CSS Variables - Design Tokens */
:root {
  /* Color Palette - Deep Blue & Orange Accent */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-accent: #f97316;
  --color-accent-dark: #ea580c;
  --color-accent-light: #fb923c;
  
  /* Neutrals */
  --color-bg-dark: #0f172a;
  --color-bg-darker: #020617;
  --color-bg-card: #1e293b;
  --color-bg-card-hover: #334155;
  --color-surface: #1e293b;
  --color-surface-elevated: #334155;
  
  /* Text Colors */
  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-text-inverse: #0f172a;
  
  /* Semantic Colors */
  --color-success: #22c55e;
  --color-warning: #eab308;
  --color-error: #ef4444;
  --color-info: #06b6d4;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --gradient-accent: linear-gradient(135deg, #f97316 0%, #ec4899 100%);
  --gradient-hero: linear-gradient(180deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.8) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);
  
  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.2), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.3);
  --shadow-glow-accent: 0 0 40px rgba(249, 115, 22, 0.3);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(20px);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-tooltip: 600;
  
  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg-dark);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(37, 99, 235, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(249, 115, 22, 0.1), transparent);
  pointer-events: none;
  z-index: -1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

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

p {
  color: var(--color-text-secondary);
}

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

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

/* Container */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  padding: var(--space-4) 0;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  padding: var(--space-3) 0;
  background: rgba(15, 23, 42, 0.95);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.nav-links {
  display: none;
  list-style: none;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: var(--font-medium);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width var(--transition-base);
}

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

.nav-links a:hover::after {
  width: 100%;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.98);
  backdrop-filter: var(--glass-blur);
  padding: var(--space-6);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: var(--z-fixed);
}

.mobile-menu.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-menu a {
  display: block;
  padding: var(--space-4);
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
  border-bottom: 1px solid var(--glass-border);
}

.mobile-menu a:hover {
  color: var(--color-text-primary);
  background: var(--glass-bg);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  padding: calc(80px + var(--space-16)) 0 var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-accent);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease;
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero h1 {
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease 0.1s backwards;
}

.hero h1 span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto var(--space-8);
  animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.3s backwards;
}

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

.hero-stat-value {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--font-extrabold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================
   Search Section
   ============================================ */
.search-section {
  padding: var(--space-8) 0;
  position: sticky;
  top: 70px;
  z-index: var(--z-sticky);
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
}

.search-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.search-input-wrapper {
  position: relative;
  margin-bottom: var(--space-6);
}

.search-icon {
  position: absolute;
  left: var(--space-5);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 1.25rem;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: var(--space-5) var(--space-5) var(--space-5) calc(var(--space-5) + 2rem);
  font-size: var(--text-lg);
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  background: var(--color-bg-card);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-xl);
  outline: none;
  transition: all var(--transition-base);
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.search-clear {
  position: absolute;
  right: var(--space-5);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.search-clear.visible {
  opacity: 1;
  visibility: visible;
}

.search-clear:hover {
  color: var(--color-text-primary);
}

/* Search Results Dropdown */
.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  margin-top: var(--space-2);
  max-height: 400px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-xl);
}

.search-results.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  border-bottom: 1px solid var(--glass-border);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background: var(--color-bg-card-hover);
}

.search-result-icon {
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.search-result-info {
  flex: 1;
  min-width: 0;
}

.search-result-title {
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.search-result-category {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================
   Category Filters
   ============================================ */
.category-filters {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.category-filters::-webkit-scrollbar {
  display: none;
}

.category-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: var(--color-bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

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

.category-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
}

.category-btn .count {
  font-size: var(--text-xs);
  padding: 2px 8px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
}

/* ============================================
   Calculator Grid
   ============================================ */
.calculators-section {
  padding: var(--space-12) 0 var(--space-20);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.section-title {
  font-size: var(--text-2xl);
}

.results-count {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.calculator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
}

@media (max-width: 640px) {
  .calculator-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Calculator Card
   ============================================ */
.calculator-card {
  position: relative;
  background: var(--gradient-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
  overflow: hidden;
  text-decoration: none;
  display: block;
}

.calculator-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-glass);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

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

.card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  transition: all var(--transition-base);
}

.calculator-card:hover .card-icon {
  background: var(--gradient-primary);
  border-color: transparent;
}

.card-category {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.card-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  line-height: 1.3;
}

.card-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  position: relative;
  z-index: 1;
}

.card-arrow {
  position: absolute;
  bottom: var(--space-4);
  right: var(--space-4);
  width: 32px;
  height: 32px;
  background: var(--glass-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.calculator-card:hover .card-arrow {
  background: var(--color-primary);
  color: white;
  transform: translateX(4px);
}

/* ============================================
   Category Section Headers
   ============================================ */
.category-section {
  margin-bottom: var(--space-12);
}

.category-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--glass-border);
}

.category-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.category-info h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-1);
}

.category-info p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================
   Load More Button
   ============================================ */
.load-more-wrapper {
  text-align: center;
  padding: var(--space-12) 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  border: none;
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

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

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

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg-darker);
  border-top: 1px solid var(--glass-border);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: var(--space-4);
}

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

.footer-title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

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

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

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

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

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

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

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

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

/* Card Entrance Animation */
.calculator-card {
  animation: fadeInUp 0.4s ease backwards;
}

.calculator-card:nth-child(1) { animation-delay: 0.05s; }
.calculator-card:nth-child(2) { animation-delay: 0.1s; }
.calculator-card:nth-child(3) { animation-delay: 0.15s; }
.calculator-card:nth-child(4) { animation-delay: 0.2s; }
.calculator-card:nth-child(5) { animation-delay: 0.25s; }
.calculator-card:nth-child(6) { animation-delay: 0.3s; }

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-card) 25%,
    var(--color-bg-card-hover) 50%,
    var(--color-bg-card) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* No Results State */
.no-results {
  text-align: center;
  padding: var(--space-20) var(--space-4);
}

.no-results-icon {
  font-size: 4rem;
  margin-bottom: var(--space-6);
  opacity: 0.5;
}

.no-results h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}

.no-results p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

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

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

::-webkit-scrollbar-thumb {
  background: var(--color-surface-elevated);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}