/* Modern Futuristic AI Domain Finder Styles */
:root {
  /* Light Theme Colors */
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #0ea5e9;
  --accent: #ec4899;
  --background: #f8fafc;
  --surface: #ffffff;
  --surface-alt: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-tertiary: #94a3b8;
  --border: #e2e8f0;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --shadow: rgba(0, 0, 0, 0.08);
  --glass: rgba(255, 255, 255, 0.75);
  
  /* Dark Theme Colors */
  --dark-background: #0f172a;
  --dark-surface: #1e293b;
  --dark-surface-alt: #334155;
  --dark-text-primary: #f1f5f9;
  --dark-text-secondary: #cbd5e1;
  --dark-text-tertiary: #94a3b8;
  --dark-border: #334155;
  --dark-shadow: rgba(0, 0, 0, 0.25);
  --dark-glass: rgba(30, 41, 59, 0.75);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-secondary: linear-gradient(135deg, var(--secondary), var(--accent));
  --gradient-accent: linear-gradient(135deg, var(--accent), var(--primary));
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 var(--shadow);
  --shadow-md: 0 4px 6px -1px var(--shadow);
  --shadow-lg: 0 10px 15px -3px var(--shadow);
  --shadow-xl: 0 20px 25px -5px var(--shadow);
  
  /* Transitions */
  --transition-fast: all 0.2s ease;
  --transition-medium: all 0.3s ease;
  --transition-slow: all 0.5s ease;
}

/* Dark Theme */
[data-theme="dark"] {
  --background: var(--dark-background);
  --surface: var(--dark-surface);
  --surface-alt: var(--dark-surface-alt);
  --text-primary: var(--dark-text-primary);
  --text-secondary: var(--dark-text-secondary);
  --text-tertiary: var(--dark-text-tertiary);
  --border: var(--dark-border);
  --shadow: var(--dark-shadow);
  --glass: var(--dark-glass);
}

/* Dark Theme Class */
body.dark-theme {
  --background: var(--dark-background);
  --surface: var(--dark-surface);
  --surface-alt: var(--dark-surface-alt);
  --text-primary: var(--dark-text-primary);
  --text-secondary: var(--dark-text-secondary);
  --text-tertiary: var(--dark-text-tertiary);
  --border: var(--dark-border);
  --shadow: var(--dark-shadow);
  --glass: var(--dark-glass);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(14, 165, 233, 0.1) 0%, transparent 20%);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Roboto', sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(14, 165, 233, 0.05) 0%, transparent 20%);
  position: relative;
  overflow-x: hidden;
  /* Improve performance */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Preloader */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.3s ease;
}

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

.preloader-content .spinner {
  width: 48px;
  height: 48px;
  border-width: 4px;
  margin: 0 auto 1rem;
}

.preloader-content p {
  font-family: 'Poppins', sans-serif;
  color: var(--text-secondary);
  margin: 0;
}

/* Animation for elements when they come into view */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered animations for multiple elements */
.steps .step-card:nth-child(1) { transition-delay: 0.1s; }
.steps .step-card:nth-child(2) { transition-delay: 0.2s; }
.steps .step-card:nth-child(3) { transition-delay: 0.3s; }

body.dark-theme {
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(14, 165, 233, 0.1) 0%, transparent 20%);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.hidden {
  display: none !important;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  letter-spacing: -0.015em;
}

h3 {
  font-size: 2rem;
  letter-spacing: -0.01em;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* Header Styles */
.header {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  /* Add subtle shadow for depth */
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.logo h2 {
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 1.75rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: var(--transition-fast);
  border-radius: 2px;
}

.nav-menu ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu ul li {
  margin-left: 2rem;
}

.nav-menu ul li a {
  text-decoration: none;
  color: var(--text-primary);
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 1rem;
  transition: var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
  /* Add user-friendly hover feedback */
  border-radius: 4px;
}

.nav-menu ul li a:hover {
  color: var(--primary);
  background-color: rgba(99, 102, 241, 0.1);
}

.nav-menu ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-fast);
  border-radius: 2px;
}

.nav-menu ul li a:hover::after {
  width: 100%;
}

.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 0.5rem;
  margin-left: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
  background: var(--surface-alt);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.theme-toggle:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  fill: var(--text-primary);
  transition: var(--transition-fast);
}

.cta-button {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  /* Add user-friendly feedback */
  transform: translateY(0);
}

.cta-button::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: 0.5s;
}

.cta-button:hover::before {
  left: 100%;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.cta-button:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

.cta-button:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

/* Mobile menu styles */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background: var(--surface);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-xl);
    padding: 6rem 2rem 2rem;
    z-index: 1000;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu ul {
    flex-direction: column;
    width: 100%;
  }
  
  .nav-menu ul li {
    margin: 1rem 0;
  }
  
  .nav-menu ul li a {
    font-size: 1.25rem;
    padding: 0.5rem 0;
    display: block;
  }
  
  .theme-toggle {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    margin: 0;
    background: var(--surface);
  }
}

/* Hero Section */
.hero {
  padding: 8rem 0 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  /* Optimize for performance */
  transform: translateZ(0);
  will-change: transform;
  backface-visibility: hidden;
  /* Ensure proper stacking context */
  z-index: 0;
}

#particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  /* Improve performance */
  transform: translateZ(0);
  will-change: transform;
}

/* Rotating element removed as per user request */

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(14, 165, 233, 0.15) 0%, transparent 25%),
    radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.1) 0%, transparent 25%);
  z-index: -1;
  animation: float 15s ease-in-out infinite;
  opacity: 0.7;
  /* Optimize for performance */
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
  /* Add smoothness */
  -webkit-animation-timing-function: ease-in-out;
  animation-timing-function: ease-in-out;
}

/* Rotate animations removed as per user request */

/* Optimize animations for performance */
* {
  backface-visibility: hidden;
  transform-style: preserve-3d;
  -webkit-backface-visibility: hidden;
  -webkit-transform-style: preserve-3d;
}

/* Apply will-change selectively for better performance */
.hero::after,
#particles-canvas {
  will-change: transform;
}

/* Hardware acceleration for smoother animations */
.hero::after {
  -webkit-transform: translateZ(0);
  -moz-transform: translateZ(0);
  -ms-transform: translateZ(0);
  -o-transform: translateZ(0);
  transform: translateZ(0);
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  ::before,
  ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@keyframes float {
  0% {
    transform: translate(0, 0);
    -webkit-transform: translate(0, 0);
  }
  50% {
    transform: translate(2%, 2%);
    -webkit-transform: translate(2%, 2%);
  }
  100% {
    transform: translate(0, 0);
    -webkit-transform: translate(0, 0);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--text-primary), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.search-container {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.search-card {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  width: 100%;
  max-width: 700px;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.search-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.search-card input,
.search-card select,
.search-card button {
  padding: 1rem 1.25rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.search-card input {
  flex: 1;
  min-width: 200px;
  background: var(--surface);
  color: var(--text-primary);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.search-card input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-card select {
  width: 120px;
  background: var(--surface);
  color: var(--text-primary);
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.search-card select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-card button {
  background: var(--gradient-primary);
  color: white;
  font-weight: 600;
  cursor: pointer;
  min-width: 180px;
  border: none;
  box-shadow: var(--shadow-md);
  padding: 1rem 1.25rem;
  border-radius: 12px;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  transition: var(--transition-fast);
  /* Add user-friendly feedback */
  transform: translateY(0);
}

.search-card button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.search-card button:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

.search-card button:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
  padding: 1rem;
}

.stat-number {
  font-family: 'Poppins', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.stat-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: block;
  margin-top: 0.25rem;
}

/* How It Works Section */
.how-it-works {
  padding: 6rem 0;
  background-color: var(--surface-alt);
  position: relative;
  overflow: hidden;
}

.how-it-works::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
}

.how-it-works::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.03) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(14, 165, 233, 0.03) 0%, transparent 20%);
  z-index: 0;
  animation: subtleMove 30s ease-in-out infinite;
}

@keyframes subtleMove {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(1%, 1%);
  }
  50% {
    transform: translate(0, 0);
  }
  75% {
    transform: translate(-1%, -1%);
  }
  100% {
    transform: translate(0, 0);
  }
}

.how-it-works h2 {
  text-align: center;
  margin-bottom: 4rem;
}

.steps {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
}

.step-card {
  flex: 1;
  min-width: 250px;
  background: var(--surface);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
}

.step-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.step-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-medium);
}

.step-card:hover::before {
  transform: scaleX(1);
}

.step-icon {
  width: 80px;
  height: 80px;
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  transition: var(--transition-medium);
}

.step-icon:hover {
  transform: scale(1.1);
}

.step-icon .material-icons {
  font-size: 2.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.step-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.step-card p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Suggested Domains Section */
.suggested-domains {
  padding: 6rem 0;
  position: relative;
  background: 
    radial-gradient(circle at 15% 25%, rgba(236, 72, 153, 0.03) 0%, transparent 15%),
    radial-gradient(circle at 85% 75%, rgba(14, 165, 233, 0.03) 0%, transparent 15%);
  animation: subtlePulse 20s ease-in-out infinite;
}

@keyframes subtlePulse {
  0% {
    background-position: 0% 0%;
  }
  50% {
    background-position: 2% 2%;
  }
  100% {
    background-position: 0% 0%;
  }
}

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: 4rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.suggested-domains h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.api-note {
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  text-align: center;
  border: 1px solid var(--border);
}

.api-note p {
  color: var(--text-secondary);
  margin: 0;
}

.loading-spinner {
  text-align: center;
  padding: 4rem 0;
}

.spinner {
  border: 4px solid rgba(99, 102, 241, 0.2);
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  animation: spin 1s linear infinite;
  margin: 0 auto 1.5rem;
}

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

.placeholder-message {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 16px;
  border: 1px solid var(--border);
  margin: 2rem 0;
}

.placeholder-message p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin: 0;
}

.domains-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.domain-card {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 1.5rem;
  transition: var(--transition-medium);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.domain-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.domain-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.quality-indicators {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.quality-badge {
  background: var(--gradient-primary);
  color: white;
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  border-radius: 12px;
  font-weight: 600;
}

.domain-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-medium);
}

.domain-card:hover::before {
  transform: scaleX(1);
}

.domain-name {
  font-family: 'Roboto', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  word-break: break-all;
  color: var(--text-primary);
}

.availability {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0;
}

.domain-meta .availability {
  font-size: 0.9rem;
}

.available {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.unavailable {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--error);
}

.domain-actions {
  display: flex;
  gap: 0.75rem;
}

.action-button {
  flex: 1;
  padding: 0.75rem;
  border-radius: 12px;
  border: none;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.copy-button {
  background-color: rgba(14, 165, 233, 0.15);
  color: var(--secondary);
}

.copy-button:hover {
  background-color: rgba(14, 165, 233, 0.25);
}

.register-button {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.register-button:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.register-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Footer */
.footer {
  background-color: var(--surface-alt);
  color: var(--text-primary);
  padding: 5rem 0 2rem;
  position: relative;
  overflow: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
}

.footer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.02) 0%, transparent 15%),
    radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.02) 0%, transparent 15%);
  z-index: 0;
  animation: subtleWave 25s ease-in-out infinite;
}

@keyframes subtleWave {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  25% {
    transform: translate(1%, 0.5%) rotate(0.5deg);
  }
  50% {
    transform: translate(0, 0) rotate(0deg);
  }
  75% {
    transform: translate(-1%, -0.5%) rotate(-0.5deg);
  }
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer h3,
.footer h4 {
  font-family: 'Poppins', sans-serif;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.footer h3 {
  font-size: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer p {
  font-family: 'Inter', sans-serif;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 0.75rem;
}

.footer ul li a {
  text-decoration: none;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer ul li a:hover {
  color: var(--primary);
  transform: translateX(5px);
}

.footer ul li a::before {
  content: '→';
  opacity: 0;
  transition: var(--transition-fast);
}

.footer ul li a:hover::before {
  opacity: 1;
}

.social-icons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: var(--surface);
  border-radius: 50%;
  color: var(--text-primary);
  transition: var(--transition-fast);
  border: 1px solid var(--border);
}

.social-icons a:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

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

.newsletter input {
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background-color: var(--surface);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  transition: var(--transition-fast);
}

.newsletter input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.newsletter button {
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: none;
  background: var(--gradient-primary);
  color: white;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.newsletter button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.copyright {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.copyright p {
  font-family: 'Inter', sans-serif;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
  h1 {
    font-size: 2.75rem;
  }
  
  h2 {
    font-size: 2.25rem;
  }
  
  .hero {
    padding: 6rem 0 4rem;
  }
  
  .hero h1 {
    font-size: 2.75rem;
  }
  
  .search-card {
    padding: 1.5rem;
  }
}

@media (max-width: 768px) {
  .container {
    width: 95%;
  }
  
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero {
    padding: 5rem 0 3rem;
  }
  
  .hero h1 {
    font-size: 2.25rem;
  }
  
  .hero p {
    font-size: 1.125rem;
  }
  
  .search-card {
    flex-direction: column;
  }
  
  .search-card input,
  .search-card select,
  .search-card button {
    width: 100%;
  }
  
  .steps {
    flex-direction: column;
  }
  
  .domains-grid {
    grid-template-columns: 1fr;
  }
  
  .domain-actions {
    flex-direction: column;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .hero {
    padding: 4rem 0 2rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero-content {
    padding: 0 1rem;
  }
  
  .search-card {
    padding: 1.25rem;
  }
  
  .step-card,
  .domain-card {
    padding: 1.25rem;
  }
}