/* Responsive Design */

/* Large Screens */
@media (min-width: 1200px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
  
  .hero-title {
    font-size: 4rem;
  }
}

/* Medium Screens */
@media (max-width: 1024px) {
  :root {
    --spacing-xxl: 3rem;
    --font-size-4xl: 2.5rem;
    --font-size-3xl: 2rem;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .mining-animation {
    max-width: 400px;
    margin: 0 auto;
  }
  
  .nav-menu {
    gap: var(--spacing-md);
  }
  
  .nav-link {
    font-size: var(--font-size-sm);
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-button {
    width: 100%;
    max-width: 300px;
  }
}

/* Small Tablets */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-xxl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.5rem;
    --header-height: 70px;
  }
  
  #pages-container {
    margin-top: var(--header-height);
  }
  
  .nav-container {
    padding: 0 var(--spacing-sm);
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--spacing-xl);
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-link {
    font-size: var(--font-size-lg);
    padding: var(--spacing-md);
    width: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(42, 42, 42, 0.3);
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero-section {
    min-height: 80vh;
    padding: var(--spacing-xl) 0;
  }
  
  .hero-container {
    gap: var(--spacing-lg);
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .price-widget {
    width: 100%;
    text-align: center;
  }
  
  .price-display {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .stats-grid-inline {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .stat-inline {
    padding: var(--spacing-xs);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .mining-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: rgba(42, 42, 42, 0.3);
    border-radius: var(--border-radius-sm);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }
}

/* Mobile Phones */
@media (max-width: 480px) {
  :root {
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
    --font-size-xl: 1.125rem;
    --header-height: 60px;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .nav-container {
    padding: 0 var(--spacing-sm);
  }
  
  .brand-text {
    font-size: var(--font-size-lg);
  }
  
  .logo {
    width: 32px;
    height: 32px;
  }
  
  .hero-section {
    min-height: 70vh;
    padding: var(--spacing-lg) 0;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
    line-height: 1.3;
  }
  
  .hero-subtitle {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-lg);
  }
  
  .mining-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
  }
  
  .mining-node {
    width: 40px;
    height: 40px;
  }
  
  .mining-node::before {
    width: 12px;
    height: 12px;
  }
  
  .mining-animation {
    padding: var(--spacing-md);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .stat-card {
    padding: var(--spacing-md);
  }
  
  .feature-card {
    padding: var(--spacing-lg);
  }
  
  .feature-icon {
    font-size: var(--font-size-3xl);
  }
  
  .cta-button {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-md);
  }
  
  .cta-button.large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-md);
  }
  
  .theme-toggle,
  .mobile-menu-toggle {
    padding: var(--spacing-xs);
    width: 40px;
    height: 40px;
  }
  
  .mobile-menu-toggle span {
    width: 16px;
    height: 1.5px;
  }
}

/* Ultra Small Screens */
@media (max-width: 360px) {
  :root {
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-xxl: 1.5rem;
    --font-size-4xl: 1.5rem;
    --font-size-3xl: 1.25rem;
    --header-height: 55px;
  }
  
  .hero-title {
    font-size: var(--font-size-2xl);
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .cta-title {
    font-size: var(--font-size-2xl);
  }
  
  .mining-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
  }
  
  .mining-node {
    width: 30px;
    height: 30px;
  }
  
  .mining-node::before {
    width: 8px;
    height: 8px;
  }
}

/* Landscape Orientation for Mobile */
@media (max-height: 500px) and (orientation: landscape) {
  .hero-section {
    min-height: 100vh;
  }
  
  .hero-container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }
  
  .hero-visual {
    order: 1;
  }
  
  .hero-content {
    text-align: left;
  }
  
  .mining-animation {
    padding: var(--spacing-md);
    max-width: none;
  }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .logo,
  .footer-logo {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .mining-node.active {
    animation: none;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: light) {
  body:not(.dark-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;
  }
}

/* Print Styles */
@media print {
  #site-header,
  #site-footer,
  .cta-section,
  .hero-actions,
  .nav-actions {
    display: none !important;
  }
  
  #pages-container {
    margin-top: 0;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
  
  .hero-section,
  .features-section,
  .stats-section {
    background: white !important;
    page-break-inside: avoid;
  }
}

/* Focus Styles for Accessibility */
.nav-link:focus,
.cta-button:focus,
.theme-toggle:focus,
.mobile-menu-toggle:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid transparent;
  border-top: 2px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Scroll Indicator */
.scroll-indicator {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(42, 42, 42, 0.3);
  z-index: 999;
}

.scroll-progress {
  height: 100%;
  background: var(--gradient-primary);
  width: 0%;
  transition: width 0.1s ease;
}