/* CSS Variables - Color System */
:root {
  /* Dark Theme Colors */
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;
  --bg-card: rgba(42, 42, 42, 0.8);
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --text-muted: #a0a0a0;
  --text-accent: #8b5cf6;
  
  /* Accent Colors - Purple Theme */
  --accent-primary: #8b5cf6;
  --accent-secondary: #a78bfa;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  
  /* Gradients - Purple Theme */
  --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
  --gradient-secondary: linear-gradient(135deg, #667eea 0%, #8b5cf6 100%);
  --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.3);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.875rem;
  --font-size-sm: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --header-height: 80px;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Override */
.light-theme {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --bg-card: rgba(255, 255, 255, 0.8);
  --text-primary: #1a1a1a;
  --text-secondary: #4a4a4a;
  --text-muted: #6c757d;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Layout Structure */
#site-container {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

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

/* Header Styles */
#site-header {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(42, 42, 42, 0.5);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: var(--transition);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: var(--font-size-xl);
}

.logo {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-sm);
}

.brand-text {
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-primary);
  background: rgba(139, 92, 246, 0.1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.update-button,
.theme-toggle,
.mobile-menu-toggle {
  background: none;
  border: 1px solid var(--bg-tertiary);
  color: var(--text-secondary);
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.update-button:hover,
.theme-toggle:hover,
.mobile-menu-toggle:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.update-button {
  position: relative;
}

.update-button:hover {
  transform: rotate(180deg);
}

.update-button.updating {
  animation: spin 1s linear infinite;
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  width: 30px;
  height: 30px;
  justify-content: center;
  align-items: center;
}

.mobile-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-secondary);
  margin: 2px 0;
  transition: var(--transition);
}

/* Main Content */
#pages-container {
  margin-top: var(--header-height);
}

/* Hero Section */
.hero-section {
  background: var(--gradient-dark);
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23ffffff" opacity="0.02"/><circle cx="75" cy="75" r="1" fill="%23ffffff" opacity="0.02"/><circle cx="25" cy="75" r="1" fill="%23ffffff" opacity="0.02"/><circle cx="75" cy="25" r="1" fill="%23ffffff" opacity="0.02"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
}

.hero-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  text-align: left;
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.highlight {
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

/* Price Pill - Oval Long Bar */
.price-pill {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(168, 85, 247, 0.2) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 50px;
  padding: var(--spacing-sm) var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.15);
}

.price-pill:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.25);
  border-color: rgba(139, 92, 246, 0.5);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.25) 0%, rgba(168, 85, 247, 0.25) 100%);
}

.price-pill-label {
  color: var(--accent-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
}

.price-pill-values {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.price-usd, .price-cny {
  color: #ffffff !important;
  font-size: var(--font-size-md);
  font-weight: 700;
  font-family: 'JetBrains Mono', 'Monaco', 'Consolas', monospace;
  background: none !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  padding: 0 !important;
  margin: 0 !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  opacity: 1 !important;
}

/* More specific selector for price pill */
.price-pill .price-cny {
  color: #ffffff !important;
  opacity: 1 !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5) !important;
}

.price-separator {
  color: #ffffff;
  font-weight: 700;
  opacity: 0.8;
  margin: 0 4px;
}

/* Force override for price value ID */
#price-value {
  color: #ffffff !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  padding: 0 !important;
  margin: 0 !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5) !important;
}

/* Footer Icons */
.footer-icon {
  width: 16px;
  height: 16px;
  margin-right: 8px;
  vertical-align: middle;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.footer-links a:hover .footer-icon {
  opacity: 1;
}

/* Network Stats Widget */
.network-stats-widget {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(42, 42, 42, 0.5);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.stats-grid-inline {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.stat-inline {
  text-align: center;
  padding: var(--spacing-sm);
  background: rgba(139, 92, 246, 0.1);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(139, 92, 246, 0.2);
  transition: var(--transition);
}

.stat-inline:hover {
  background: rgba(139, 92, 246, 0.15);
  border-color: rgba(139, 92, 246, 0.3);
  transform: translateY(-2px);
}

.stat-inline .stat-value {
  display: block;
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-inline .stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Hero Actions */
.hero-actions {
  display: flex;
  gap: var(--spacing-md);
}

.cta-button {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-size: var(--font-size-md);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

.cta-button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

.cta-button.secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--bg-tertiary);
}

.cta-button.secondary:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

.cta-button.large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.mining-animation {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(42, 42, 42, 0.5);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  position: relative;
}

.mining-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.mining-node {
  width: 60px;
  height: 60px;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  position: relative;
  transition: var(--transition);
}

.mining-node.active {
  background: var(--gradient-primary);
  box-shadow: var(--shadow-glow);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.mining-node::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  background: currentColor;
  border-radius: 50%;
  opacity: 0.3;
}

.mining-stats {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-sm);
}

.stat-item {
  text-align: center;
  flex: 1;
}

.stat-value {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: var(--spacing-xs);
}

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

/* Features Section */
.features-section {
  padding: var(--spacing-xxl) 0;
  background: var(--bg-secondary);
}

.section-title {
  text-align: center;
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xxl);
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(42, 42, 42, 0.5);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition);
}

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

.feature-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  display: block;
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Stats Section */
.stats-section {
  padding: var(--spacing-xxl) 0;
  background: var(--bg-primary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(42, 42, 42, 0.5);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-primary);
}

.stat-number {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: var(--spacing-sm);
}

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

/* CTA Section */
.cta-section {
  padding: var(--spacing-xxl) 0;
  background: var(--gradient-dark);
  text-align: center;
}

.cta-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.cta-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

/* Footer */
#site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(42, 42, 42, 0.5);
  padding: var(--spacing-xxl) 0 var(--spacing-xl);
}

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

.footer-content {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

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

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

.footer-brand-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-description {
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-section-title {
  font-size: var(--font-size-md);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

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

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

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(42, 42, 42, 0.5);
  padding-top: var(--spacing-md);
  text-align: center;
  color: var(--text-muted);
}

.footer-slogan {
  margin-top: var(--spacing-xs);
  font-style: italic;
  color: var(--text-secondary);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Scroll Animations */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Loading States */
.loading-pulse {
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.1) 25%, rgba(139, 92, 246, 0.3) 50%, rgba(139, 92, 246, 0.1) 75%);
  background-size: 200% 100%;
  animation: pulse-loading 1.5s infinite;
  color: transparent !important;
  border-radius: var(--border-radius-sm);
}

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

.data-updated {
  animation: data-highlight 0.5s ease-in-out;
}

@keyframes data-highlight {
  0% { background-color: rgba(139, 92, 246, 0.3); }
  100% { background-color: transparent; }
}

.connection-status {
  position: fixed;
  top: calc(var(--header-height) + 10px);
  right: 20px;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  font-weight: 600;
  z-index: 998;
  transition: var(--transition);
  transform: translateY(-100%);
}

.connection-status.online {
  background: rgba(16, 185, 129, 0.9);
  color: white;
  transform: translateY(0);
}

.connection-status.offline {
  background: rgba(239, 68, 68, 0.9);
  color: white;
  transform: translateY(0);
}

.connection-status.loading {
  background: rgba(139, 92, 246, 0.9);
  color: white;
  transform: translateY(0);
}

.stats-last-update {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  margin-top: var(--spacing-sm);
  font-style: italic;
}

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

.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); }

.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); }