/* Modern CSS Reset */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* CSS Variables - Modern Dark Theme with Purple/Blue Accents */
:root {
  /* Primary Colors */
  --primary-50: #f5f3ff;
  --primary-100: #ede9fe;
  --primary-200: #ddd6fe;
  --primary-300: #c4b5fd;
  --primary-400: #a78bfa;
  --primary-500: #8b5cf6;
  --primary-600: #7c3aed;
  --primary-700: #6d28d9;
  --primary-800: #5b21b6;
  --primary-900: #4c1d95;
  
  /* Accent Colors */
  --accent-500: #3b82f6;
  --accent-600: #2563eb;
  
  /* Neutral Colors */
  --neutral-50: #fafafa;
  --neutral-100: #f4f4f5;
  --neutral-200: #e4e4e7;
  --neutral-300: #d4d4d8;
  --neutral-400: #a1a1aa;
  --neutral-500: #71717a;
  --neutral-600: #52525b;
  --neutral-700: #3f3f46;
  --neutral-800: #27272a;
  --neutral-900: #18181b;
  --neutral-950: #09090b;
  
  /* Background & Surface */
  --bg-primary: var(--neutral-950);
  --bg-secondary: var(--neutral-900);
  --bg-card: rgba(24, 24, 27, 0.7);
  --bg-card-hover: rgba(39, 39, 42, 0.8);
  
  /* Text */
  --text-primary: var(--neutral-50);
  --text-secondary: var(--neutral-400);
  --text-tertiary: var(--neutral-500);
  
  /* Borders */
  --border-light: 1px solid rgba(255, 255, 255, 0.1);
  --border-medium: 1px solid rgba(255, 255, 255, 0.15);
  
  /* Effects */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: 1px solid rgba(255, 255, 255, 0.05);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Typography */
  --font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Base Styles */
html {
  scroll-behavior: smooth;
}

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

/* Animated Gradient Background */
.gradient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  overflow: hidden;
}

.gradient-sphere {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}

.sphere-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle at 30% 30%, var(--primary-500), var(--primary-800));
  top: -200px;
  right: -100px;
  animation: float 20s ease-in-out infinite;
}

.sphere-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle at 70% 70%, var(--accent-500), var(--primary-700));
  bottom: -200px;
  left: -100px;
  animation: float 25s ease-in-out infinite reverse;
}

.sphere-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle at 50% 50%, var(--primary-400), var(--accent-600));
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: float 15s ease-in-out infinite;
}

.gradient-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: -1;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(9, 9, 11, 0.8);
  border-bottom: var(--glass-border);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-sm) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.logo-icon {
  font-size: 1.5rem;
  color: var(--primary-500);
  transform: rotate(-45deg);
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-accent {
  color: var(--primary-500);
  margin-left: 2px;
}

.header-nav {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 20px;
  height: 2px;
  background: var(--primary-500);
  transition: transform var(--transition-base);
}

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

.nav-link:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  border: none;
  border-radius: var(--radius-full);
  color: white;
  font-weight: 500;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-base);
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px var(--primary-700);
}

/* Main Content */
.main-content {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: calc(100vh - 200px);
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* ===== FIXED SECTION TRANSITIONS - Like Sample ===== */
.section {
  display: none;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.section.active {
  display: block;
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* ===== END FIXED SECTION TRANSITIONS ===== */

/* Intro Section - Flex layout only when active */
#intro-section {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

#intro-section.active {
  display: flex !important;
  flex-direction: row;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-visual {
  flex: 1;
  position: relative;
  height: 500px;
  min-width: 400px;
}

/* Badges */
.badge-container {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
  backdrop-filter: blur(4px);
}

.badge-primary {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(124, 58, 237, 0.2));
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: var(--primary-300);
}

.badge-outline {
  background: var(--glass-bg);
  border: var(--glass-border);
  color: var(--text-secondary);
}

/* Hero Text */
.hero-title {
  font-size: var(--font-size-5xl);
  line-height: 1.1;
  margin-bottom: var(--space-md);
  font-weight: 600;
  letter-spacing: -2px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-400), var(--accent-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 500px;
}

/* Stats */
.stats-container {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.stat-divider {
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, transparent, var(--text-tertiary), transparent);
}

/* CTA Buttons */
.cta-group {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 500;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-decoration: none;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: var(--font-size-md);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: white;
  position: relative;
  overflow: hidden;
}

.btn-primary::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 ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 30px -10px var(--primary-700);
}

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

.btn-outline {
  background: transparent;
  border: var(--border-light);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--primary-500);
  background: var(--glass-bg);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

/* Trust Badges */
.trust-badges {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.trust-item i {
  color: var(--primary-500);
}

/* Floating Cards Animation */
.hero-visual {
  position: relative;
}

.floating-card {
  position: absolute;
  width: 80px;
  height: 80px;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--text-primary);
  box-shadow: var(--glass-shadow);
  animation: float 3s ease-in-out infinite;
}

.card-1 {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(59, 130, 246, 0.2));
  border-color: rgba(139, 92, 246, 0.3);
}

.card-2 {
  top: 40%;
  right: 20%;
  animation-delay: 0.5s;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(234, 179, 8, 0.2));
  border-color: rgba(245, 158, 11, 0.3);
}

.card-3 {
  bottom: 20%;
  left: 30%;
  animation-delay: 1s;
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.2), rgba(219, 39, 119, 0.2));
  border-color: rgba(236, 72, 153, 0.3);
}

.network-visual {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  z-index: -1;
}

/* Wallet Select Section - Centered content */
#wallet-select-section .section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

#wallet-select-section .section-title {
  font-size: var(--font-size-3xl);
  margin: var(--space-sm) 0;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

#wallet-select-section .section-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
}

/* Wallet Grid */
.wallet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-sm);
  margin: var(--space-xl) auto;
  max-width: 900px;
  max-height: 500px;
  overflow-y: auto;
  padding: var(--space-xs);
}

/* Custom Scrollbar */
.wallet-grid::-webkit-scrollbar {
  width: 6px;
}

.wallet-grid::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
}

.wallet-grid::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, var(--primary-600), var(--accent-600));
  border-radius: var(--radius-full);
}

.wallet-card {
  cursor: pointer;
  transition: all var(--transition-base);
  animation: fadeInUp 0.5s ease forwards;
  opacity: 0;
  animation-fill-mode: forwards;
}

.wallet-card:nth-child(n) {
  animation-delay: calc(0.05s * var(--i, 1));
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.wallet-card-inner {
  background: var(--bg-card);
  border: var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.wallet-card-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), 
              rgba(139, 92, 246, 0.3), 
              transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.wallet-card:hover .wallet-card-inner {
  transform: translateY(-4px);
  border-color: var(--primary-500);
  box-shadow: 0 10px 20px -5px rgba(139, 92, 246, 0.3);
}

.wallet-card:hover .wallet-card-inner::before {
  opacity: 1;
}

.wallet-card.selected .wallet-card-inner {
  border-color: var(--primary-500);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(124, 58, 237, 0.1));
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

.wallet-icon-wrapper {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  padding: 8px;
  transition: transform var(--transition-base);
}

.wallet-card:hover .wallet-icon-wrapper {
  transform: scale(1.1);
}

.wallet-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.wallet-name {
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-align: center;
  color: var(--text-secondary);
}

.wallet-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.6rem;
  padding: 2px 6px;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  border-radius: var(--radius-full);
  color: white;
  font-weight: 600;
  text-transform: uppercase;
}

.section-footer {
  display: flex;
  justify-content: center;
  margin-top: var(--space-lg);
}

/* Recovery Section - Centered */
#recovery-phrase-section .recovery-card {
  max-width: 500px;
  margin: 0 auto;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-xl);
  box-shadow: var(--glass-shadow);
}

.recovery-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.recovery-title {
  font-size: var(--font-size-2xl);
  margin: var(--space-sm) 0;
}

.recovery-subtitle {
  color: var(--text-secondary);
}

.security-notice {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(59, 130, 246, 0.1));
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
}

.security-notice i {
  font-size: 1.5rem;
  color: var(--primary-500);
}

.notice-content {
  display: flex;
  flex-direction: column;
}

.notice-content strong {
  font-size: var(--font-size-sm);
}

.notice-content span {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* Form Styles */
.recovery-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-label {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.form-label i {
  color: var(--primary-500);
}

.textarea-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-control {
  width: 100%;
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: var(--border-light);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  resize: vertical;
  transition: all var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.form-control::placeholder {
  color: var(--text-tertiary);
}

.textarea-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--space-xs);
}

.form-hint {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.paste-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: transparent;
  border: var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.paste-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--primary-500);
  color: var(--primary-500);
}

/* Security Features */
.security-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  justify-content: center;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.feature-item i {
  color: var(--primary-500);
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Features Section */
.features-section {
  background: var(--bg-secondary);
  padding: var(--space-2xl) var(--space-lg);
  border-top: var(--border-light);
  border-bottom: var(--border-light);
  margin-top: var(--space-2xl);
}

.features-container {
  max-width: 1200px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.feature-card {
  background: var(--bg-card);
  border: var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary-500);
  box-shadow: 0 20px 30px -10px rgba(139, 92, 246, 0.3);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-md);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(59, 130, 246, 0.2));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-500);
}

.feature-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* About Section */
.about-section {
  padding: var(--space-2xl) var(--space-lg);
}

.about-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-content {
  padding-right: var(--space-xl);
}

.about-content h2 {
  font-size: var(--font-size-3xl);
  margin: var(--space-sm) 0 var(--space-md);
  line-height: 1.2;
}

.about-text {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-lg);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.metric {
  display: flex;
  flex-direction: column;
}

.metric-number {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-500);
}

.metric-label {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

/* Newsletter Card */
.newsletter-card {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
  border: var(--border-light);
  border-radius: var(--radius-2xl);
  padding: var(--space-xl);
  backdrop-filter: blur(12px);
}

.newsletter-icon {
  font-size: 2rem;
  color: var(--primary-500);
  margin-bottom: var(--space-md);
}

.newsletter-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xs);
}

.newsletter-card p {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.input-group {
  display: flex;
  gap: var(--space-xs);
}

.input-group .form-control {
  flex: 1;
}

.input-group .btn {
  padding: 0 var(--space-lg);
}

.social-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: var(--border-light);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--primary-600);
  border-color: transparent;
  color: white;
  transform: translateY(-4px);
}

/* Footer */
.site-footer {
  background: var(--bg-secondary);
  border-top: var(--border-light);
  padding-top: var(--space-xl);
  margin-top: auto;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg) var(--space-xl);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.footer-logo {
  color: var(--primary-500);
  transform: rotate(-45deg);
}

.footer-description {
  color: var(--text-tertiary);
  font-size: var(--font-size-sm);
  max-width: 250px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.footer-column h4 {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.footer-column a {
  display: block;
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-xs);
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--primary-500);
}

.footer-bottom {
  border-top: var(--border-light);
  padding: var(--space-md) var(--space-lg);
}

.footer-bottom-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-tertiary);
  font-size: var(--font-size-xs);
}

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

.footer-legal a {
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--primary-500);
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: var(--glass-border);
  border-radius: var(--radius-full);
  padding: var(--space-sm) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  box-shadow: var(--glass-shadow);
  transform: translateX(400px);
  opacity: 0;
  transition: all var(--transition-bounce);
  z-index: 1000;
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast i {
  color: var(--primary-500);
  font-size: 1.2rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .about-container {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .about-content {
    padding-right: 0;
  }
}

@media (max-width: 768px) {
  .header-nav {
    display: none;
  }
  
  .header-cta span {
    display: none;
  }
  
  .header-cta {
    padding: 0.5rem 1rem;
  }
  
  #intro-section.active {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-visual {
    min-width: auto;
    width: 100%;
    height: 300px;
  }
  
  .stats-container {
    justify-content: center;
  }
  
  .cta-group {
    justify-content: center;
  }
  
  .trust-badges {
    justify-content: center;
  }
  
  .wallet-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .footer-description {
    max-width: 100%;
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-bottom-content {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
  
  .footer-legal {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .stats-container {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .stat-divider {
    display: none;
  }
  
  .cta-group {
    flex-direction: column;
  }
  
  .wallet-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
  }
  
  .security-features {
    flex-direction: column;
  }
}

/* Loading States */
.btn.loading {
  position: relative;
  color: transparent;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid white;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Focus States for Accessibility */
:focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

/* Selection Color */
::selection {
  background: var(--primary-700);
  color: white;
}