/**
 * ID888 CSS Styles
 * Mobile-first gaming website design
 * All classes use g20f- prefix for namespace isolation
 */

/* CSS Custom Properties */
:root {
  /* Color Palette */
  --g20f-primary: #00FF7F;
  --g20f-secondary: #00FA9A;
  --g20f-accent: #008000;
  --g20f-light: #D3D3D3;
  --g20f-dark: #1A1A1A;
  --g20f-white: #FFFFFF;
  --g20f-black: #000000;
  --g20f-gray: #888888;
  --g20f-gray-light: #F5F5F5;
  --g20f-gray-dark: #333333;

  /* Typography */
  --g20f-font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --g20f-font-size-base: 1.6rem;
  --g20f-line-height: 1.5;

  /* Spacing */
  --g20f-spacing-xs: 0.5rem;
  --g20f-spacing-sm: 1rem;
  --g20f-spacing-md: 1.5rem;
  --g20f-spacing-lg: 2rem;
  --g20f-spacing-xl: 3rem;

  /* Layout */
  --g20f-max-width: 43rem;
  --g20f-header-height: 6rem;
  --g20f-bottom-nav-height: 6.4rem;

  /* Transitions */
  --g20f-transition-fast: 0.2s ease;
  --g20f-transition-normal: 0.3s ease;
  --g20f-transition-slow: 0.5s ease;

  /* Shadows */
  --g20f-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --g20f-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --g20f-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

  /* Border Radius */
  --g20f-radius-sm: 0.4rem;
  --g20f-radius-md: 0.8rem;
  --g20f-radius-lg: 1.2rem;
  --g20f-radius-full: 50%;
}

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

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--g20f-font-primary);
  font-size: var(--g20f-font-size-base);
  line-height: var(--g20f-line-height);
  color: var(--g20f-light);
  background: linear-gradient(135deg, var(--g20f-dark) 0%, var(--g20f-gray-dark) 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Container */
.g20f-container {
  max-width: var(--g20f-max-width);
  margin: 0 auto;
  padding: 0 var(--g20f-spacing-sm);
}

.g20f-wrapper {
  min-height: 100vh;
  padding-top: var(--g20f-header-height);
  padding-bottom: var(--g20f-bottom-nav-height);
}

/* Header */
.g20f-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--g20f-header-height);
  background: linear-gradient(90deg, var(--g20f-dark) 0%, var(--g20f-gray-dark) 100%);
  border-bottom: 1px solid var(--g20f-primary);
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.g20f-header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--g20f-spacing-sm);
}

.g20f-logo {
  display: flex;
  align-items: center;
  gap: var(--g20f-spacing-xs);
  text-decoration: none;
  color: var(--g20f-primary);
  font-weight: bold;
  font-size: 2rem;
}

.g20f-logo img {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--g20f-radius-sm);
}

.g20f-header-actions {
  display: flex;
  align-items: center;
  gap: var(--g20f-spacing-sm);
}

.g20f-btn {
  padding: 0.8rem 1.6rem;
  border: none;
  border-radius: var(--g20f-radius-md);
  font-size: 1.4rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--g20f-transition-fast);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 4.4rem;
  min-width: 8rem;
}

.g20f-btn-primary {
  background: linear-gradient(135deg, var(--g20f-primary) 0%, var(--g20f-secondary) 100%);
  color: var(--g20f-dark);
  box-shadow: var(--g20f-shadow-sm);
}

.g20f-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--g20f-shadow-md);
}

.g20f-btn-secondary {
  background: transparent;
  color: var(--g20f-primary);
  border: 2px solid var(--g20f-primary);
}

.g20f-btn-secondary:hover {
  background: var(--g20f-primary);
  color: var(--g20f-dark);
}

.g20f-menu-toggle {
  background: none;
  border: none;
  color: var(--g20f-primary);
  font-size: 2.4rem;
  cursor: pointer;
  padding: var(--g20f-spacing-xs);
  border-radius: var(--g20f-radius-sm);
  transition: all var(--g20f-transition-fast);
}

.g20f-menu-toggle:hover {
  background: rgba(0, 255, 127, 0.1);
}

/* Mobile Menu */
.g20f-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 32rem;
  height: 100vh;
  background: linear-gradient(180deg, var(--g20f-dark) 0%, var(--g20f-gray-dark) 100%);
  z-index: 9999;
  transition: right var(--g20f-transition-normal);
  overflow-y: auto;
  border-left: 1px solid var(--g20f-primary);
}

.g20f-mobile-menu.g20f-active {
  right: 0;
}

.g20f-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--g20f-spacing-md);
  border-bottom: 1px solid var(--g20f-primary);
}

.g20f-menu-close {
  background: none;
  border: none;
  color: var(--g20f-light);
  font-size: 2.4rem;
  cursor: pointer;
  padding: var(--g20f-spacing-xs);
  border-radius: var(--g20f-radius-sm);
  transition: all var(--g20f-transition-fast);
}

.g20f-menu-close:hover {
  color: var(--g20f-primary);
  background: rgba(0, 255, 127, 0.1);
}

.g20f-menu-nav {
  padding: var(--g20f-spacing-md) 0;
}

.g20f-menu-item {
  display: block;
  padding: var(--g20f-spacing-sm) var(--g20f-spacing-md);
  color: var(--g20f-light);
  text-decoration: none;
  transition: all var(--g20f-transition-fast);
  border-left: 3px solid transparent;
}

.g20f-menu-item:hover {
  color: var(--g20f-primary);
  background: rgba(0, 255, 127, 0.05);
  border-left-color: var(--g20f-primary);
}

.g20f-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--g20f-transition-normal);
}

.g20f-menu-overlay.g20f-active {
  opacity: 1;
  visibility: visible;
}

/* Main Content */
.g20f-main {
  flex: 1;
  padding: var(--g20f-spacing-md) 0;
}

/* Carousel */
.g20f-carousel {
  position: relative;
  width: 100%;
  height: 20rem;
  overflow: hidden;
  border-radius: var(--g20f-radius-lg);
  margin-bottom: var(--g20f-spacing-lg);
  box-shadow: var(--g20f-shadow-lg);
}

.g20f-carousel-inner {
  display: flex;
  transition: transform var(--g20f-transition-normal);
  height: 100%;
}

.g20f-carousel-slide {
  min-width: 100%;
  height: 100%;
  position: relative;
  cursor: pointer;
}

.g20f-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.g20f-carousel-indicators {
  position: absolute;
  bottom: var(--g20f-spacing-sm);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--g20f-spacing-xs);
}

.g20f-carousel-indicator {
  width: 1.2rem;
  height: 1.2rem;
  border-radius: var(--g20f-radius-full);
  background: rgba(255, 255, 255, 0.5);
  border: none;
  cursor: pointer;
  transition: all var(--g20f-transition-fast);
}

.g20f-carousel-indicator.g20f-active {
  background: var(--g20f-primary);
  transform: scale(1.2);
}

/* Typography */
.g20f-h1 {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--g20f-primary);
  margin-bottom: var(--g20f-spacing-md);
  line-height: 1.2;
}

.g20f-h2 {
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--g20f-secondary);
  margin-bottom: var(--g20f-spacing-sm);
  line-height: 1.3;
}

.g20f-h3 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--g20f-light);
  margin-bottom: var(--g20f-spacing-xs);
}

.g20f-text {
  color: var(--g20f-light);
  line-height: var(--g20f-line-height);
  margin-bottom: var(--g20f-spacing-sm);
}

.g20f-text-center {
  text-align: center;
}

.g20f-text-primary {
  color: var(--g20f-primary);
}

.g20f-text-secondary {
  color: var(--g20f-secondary);
}

/* Grid System */
.g20f-grid {
  display: grid;
  gap: var(--g20f-spacing-sm);
}

.g20f-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.g20f-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.g20f-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.g20f-grid-auto {
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
}

/* Cards */
.g20f-card {
  background: linear-gradient(135deg, var(--g20f-gray-dark) 0%, var(--g20f-dark) 100%);
  border-radius: var(--g20f-radius-md);
  padding: var(--g20f-spacing-md);
  border: 1px solid rgba(0, 255, 127, 0.2);
  transition: all var(--g20f-transition-fast);
}

.g20f-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--g20f-shadow-md);
  border-color: var(--g20f-primary);
}

/* Game Items */
.g20f-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--g20f-spacing-sm);
  border-radius: var(--g20f-radius-md);
  background: rgba(0, 255, 127, 0.05);
  border: 1px solid rgba(0, 255, 127, 0.1);
  cursor: pointer;
  transition: all var(--g20f-transition-fast);
  text-decoration: none;
  min-height: 12rem;
}

.g20f-game-item:hover {
  background: rgba(0, 255, 127, 0.1);
  border-color: var(--g20f-primary);
  transform: translateY(-2px);
}

.g20f-game-icon {
  width: 4.8rem;
  height: 4.8rem;
  border-radius: var(--g20f-radius-md);
  margin-bottom: var(--g20f-spacing-xs);
  object-fit: cover;
}

.g20f-game-name {
  font-size: 1.2rem;
  color: var(--g20f-light);
  font-weight: 500;
  line-height: 1.2;
  text-align: center;
}

/* Sections */
.g20f-section {
  margin-bottom: var(--g20f-spacing-xl);
}

.g20f-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--g20f-spacing-md);
}

.g20f-section-title {
  font-size: 2rem;
  font-weight: 600;
  color: var(--g20f-primary);
}

.g20f-section-more {
  color: var(--g20f-secondary);
  text-decoration: none;
  font-size: 1.4rem;
  font-weight: 500;
}

.g20f-section-more:hover {
  color: var(--g20f-primary);
}

/* Footer */
.g20f-footer {
  background: linear-gradient(180deg, var(--g20f-gray-dark) 0%, var(--g20f-dark) 100%);
  border-top: 1px solid var(--g20f-primary);
  padding: var(--g20f-spacing-lg) 0 var(--g20f-spacing-xl);
  margin-top: var(--g20f-spacing-xl);
}

.g20f-footer-content {
  text-align: center;
}

.g20f-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--g20f-spacing-md);
  margin-bottom: var(--g20f-spacing-md);
}

.g20f-footer-link {
  color: var(--g20f-light);
  text-decoration: none;
  font-size: 1.4rem;
  transition: color var(--g20f-transition-fast);
}

.g20f-footer-link:hover {
  color: var(--g20f-primary);
}

.g20f-partners {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--g20f-spacing-md);
  margin: var(--g20f-spacing-lg) 0;
}

.g20f-partner {
  width: 4.8rem;
  height: 4.8rem;
  object-fit: contain;
  opacity: 0.7;
  transition: opacity var(--g20f-transition-fast);
}

.g20f-partner:hover {
  opacity: 1;
}

.g20f-footer-text {
  color: var(--g20f-gray);
  font-size: 1.2rem;
  margin-top: var(--g20f-spacing-md);
}

/* Bottom Navigation */
.g20f-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--g20f-bottom-nav-height);
  background: linear-gradient(90deg, var(--g20f-dark) 0%, var(--g20f-gray-dark) 100%);
  border-top: 1px solid var(--g20f-primary);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0 var(--g20f-spacing-sm);
  backdrop-filter: blur(10px);
}

.g20f-bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 6rem;
  min-height: 5.6rem;
  text-decoration: none;
  color: var(--g20f-gray);
  transition: all var(--g20f-transition-fast);
  border-radius: var(--g20f-radius-md);
  cursor: pointer;
}

.g20f-bottom-nav-item:hover,
.g20f-bottom-nav-item.g20f-active {
  color: var(--g20f-primary);
  background: rgba(0, 255, 127, 0.1);
  transform: translateY(-2px);
}

.g20f-bottom-nav-icon {
  font-size: 2.4rem;
  margin-bottom: 0.2rem;
  transition: transform var(--g20f-transition-fast);
}

.g20f-bottom-nav-item:hover .g20f-bottom-nav-icon {
  transform: scale(1.1);
}

.g20f-bottom-nav-text {
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  line-height: 1.2;
}

/* Promotional Links */
.g20f-promo-link {
  color: var(--g20f-primary);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--g20f-transition-fast);
  cursor: pointer;
}

.g20f-promo-link:hover {
  color: var(--g20f-secondary);
  text-decoration: underline;
}

.g20f-promo-section {
  background: linear-gradient(135deg, rgba(0, 255, 127, 0.1) 0%, rgba(0, 250, 154, 0.1) 100%);
  border: 1px solid var(--g20f-primary);
  border-radius: var(--g20f-radius-lg);
  padding: var(--g20f-spacing-md);
  margin: var(--g20f-spacing-md) 0;
  text-align: center;
}

.g20f-promo-title {
  color: var(--g20f-primary);
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: var(--g20f-spacing-sm);
}

.g20f-promo-text {
  color: var(--g20f-light);
  margin-bottom: var(--g20f-spacing-sm);
}

.g20f-promo-btn {
  background: linear-gradient(135deg, var(--g20f-primary) 0%, var(--g20f-secondary) 100%);
  color: var(--g20f-dark);
  border: none;
  padding: 1.2rem 2.4rem;
  border-radius: var(--g20f-radius-md);
  font-size: 1.6rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--g20f-transition-fast);
  box-shadow: var(--g20f-shadow-sm);
}

.g20f-promo-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--g20f-shadow-md);
}

/* Responsive Design */
@media (max-width: 768px) {
  .g20f-wrapper {
    padding-bottom: var(--g20f-bottom-nav-height);
  }

  .g20f-carousel {
    height: 16rem;
  }

  .g20f-grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }

  .g20f-h1 {
    font-size: 2.4rem;
  }

  .g20f-h2 {
    font-size: 2rem;
  }

  .g20f-section-title {
    font-size: 1.8rem;
  }
}

@media (min-width: 769px) {
  .g20f-bottom-nav {
    display: none;
  }

  .g20f-wrapper {
    padding-bottom: 0;
  }

  .g20f-container {
    padding: 0 var(--g20f-spacing-lg);
  }
}

/* Utility Classes */
.g20f-hidden {
  display: none !important;
}

.g20f-visible {
  display: block !important;
}

.g20f-flex {
  display: flex !important;
}

.g20f-grid {
  display: grid !important;
}

.g20f-clicked {
  transform: scale(0.95);
  opacity: 0.8;
}

/* Loading States */
.g20f-loading {
  position: relative;
  pointer-events: none;
}

.g20f-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2rem;
  height: 2rem;
  margin: -1rem 0 0 -1rem;
  border: 2px solid var(--g20f-primary);
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: g20f-spin 1s linear infinite;
}

@keyframes g20f-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
.g20f-btn:focus,
.g20f-menu-toggle:focus,
.g20f-menu-item:focus,
.g20f-bottom-nav-item:focus,
.g20f-promo-link:focus {
  outline: 2px solid var(--g20f-primary);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --g20f-primary: #00FF00;
    --g20f-secondary: #00FF88;
    --g20f-light: #FFFFFF;
    --g20f-gray: #CCCCCC;
  }
}