:root {
  /* LuckyI Brand Colors - Warm Desert Theme */
  --ui9d-primary: #F4A460;      /* Sandy Brown */
  --ui9d-secondary: #A9A9A9;    /* Dark Gray */
  --ui9d-accent: #8B7355;       /* Dark Khaki */
  --ui9d-dark: #333333;         /* Charcoal */
  --ui9d-warning: #FF8A80;      /* Light Salmon */
  --ui9d-light: #FFCCCB;        /* Light Pink */
  --ui9d-bg: #1a1a1a;           /* Near Black */
  --ui9d-surface: #2d2d2d;      /* Dark Surface */
  --ui9d-text: #f5f5f5;         /* Light Text */
  --ui9d-muted: #999999;        /* Muted Text */
  --ui9d-border: #404040;       /* Border Color */
  --ui9d-shadow: rgba(0, 0, 0, 0.3);
  --ui9d-glow: rgba(244, 164, 96, 0.3);

  /* Typography */
  --ui9d-font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ui9d-font-display: 'Arial Rounded MT Bold', 'Helvetica Rounded', Arial, sans-serif;

  /* Spacing */
  --ui9d-spacing-xs: 0.25rem;
  --ui9d-spacing-sm: 0.5rem;
  --ui9d-spacing-md: 1rem;
  --ui9d-spacing-lg: 1.5rem;
  --ui9d-spacing-xl: 2rem;

  /* Border Radius */
  --ui9d-radius-sm: 0.25rem;
  --ui9d-radius-md: 0.5rem;
  --ui9d-radius-lg: 1rem;
  --ui9d-radius-full: 50%;

  /* Transitions */
  --ui9d-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --ui9d-transition-fast: all 0.15s ease;
  --ui9d-transition-slow: all 0.5s ease;
}

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

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

body {
  font-family: var(--ui9d-font-main);
  font-size: 1.6rem;
  line-height: 1.5;
  color: var(--ui9d-text);
  background: linear-gradient(135deg, var(--ui9d-bg) 0%, var(--ui9d-surface) 100%);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container and Layout */
.ui9d-container {
  max-width: 43rem;
  margin: 0 auto;
  padding: 0 var(--ui9d-spacing-md);
  position: relative;
}

.ui9d-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.ui9d-main {
  flex: 1;
  padding-bottom: 8rem; /* Space for mobile nav */
}

/* Header Navigation */
.ui9d-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(90deg, var(--ui9d-surface) 0%, var(--ui9d-bg) 100%);
  backdrop-filter: blur(1rem);
  border-bottom: 0.1rem solid var(--ui9d-border);
  z-index: 1000;
  padding: 1rem 0;
  box-shadow: 0 0.2rem 1rem var(--ui9d-shadow);
}

.ui9d-header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--ui9d-spacing-md);
}

.ui9d-logo {
  display: flex;
  align-items: center;
  gap: var(--ui9d-spacing-sm);
  font-family: var(--ui9d-font-display);
  font-size: 2.4rem;
  font-weight: bold;
  color: var(--ui9d-primary);
  text-decoration: none;
  transition: var(--ui9d-transition);
}

.ui9d-logo:hover {
  color: var(--ui9d-warning);
  transform: scale(1.05);
}

.ui9d-logo-icon {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: var(--ui9d-radius-md);
  background: linear-gradient(45deg, var(--ui9d-primary), var(--ui9d-warning));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: white;
  box-shadow: 0 0.2rem 0.5rem var(--ui9d-glow);
}

.ui9d-header-actions {
  display: flex;
  gap: var(--ui9d-spacing-sm);
  align-items: center;
}

/* Buttons */
.ui9d-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  border: none;
  border-radius: var(--ui9d-radius-md);
  font-size: 1.4rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--ui9d-transition);
  position: relative;
  overflow: hidden;
  min-width: 4.4rem;
  min-height: 4.4rem;
}

.ui9d-btn-primary {
  background: linear-gradient(45deg, var(--ui9d-primary), var(--ui9d-warning));
  color: var(--ui9d-dark);
  box-shadow: 0 0.2rem 0.5rem var(--ui9d-glow);
}

.ui9d-btn-primary:hover {
  transform: translateY(-0.2rem);
  box-shadow: 0 0.4rem 1rem var(--ui9d-glow);
}

.ui9d-btn-secondary {
  background: var(--ui9d-surface);
  color: var(--ui9d-text);
  border: 0.1rem solid var(--ui9d-border);
}

.ui9d-btn-secondary:hover {
  background: var(--ui9d-border);
  transform: translateY(-0.1rem);
}

/* Mobile Menu Toggle */
.ui9d-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 2.4rem;
  height: 2.4rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.ui9d-menu-toggle span {
  width: 100%;
  height: 0.2rem;
  background: var(--ui9d-primary);
  border-radius: 0.1rem;
  transition: var(--ui9d-transition);
}

.ui9d-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.ui9d-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.ui9d-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.5rem, -0.5rem);
}

/* Mobile Menu */
.ui9d-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  height: 100vh;
  background: linear-gradient(180deg, var(--ui9d-bg) 0%, var(--ui9d-surface) 100%);
  backdrop-filter: blur(1rem);
  z-index: 9999;
  transition: var(--ui9d-transition);
  padding: 8rem 2rem 2rem;
  overflow-y: auto;
}

.ui9d-mobile-menu.active {
  right: 0;
}

.ui9d-mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: var(--ui9d-transition);
}

.ui9d-mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.ui9d-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--ui9d-spacing-md);
}

.ui9d-nav-link {
  display: flex;
  align-items: center;
  padding: 1.2rem;
  color: var(--ui9d-text);
  text-decoration: none;
  border-radius: var(--ui9d-radius-md);
  transition: var(--ui9d-transition);
  font-size: 1.6rem;
  font-weight: 500;
}

.ui9d-nav-link:hover {
  background: var(--ui9d-surface);
  color: var(--ui9d-primary);
  transform: translateX(0.5rem);
}

.ui9d-nav-link i {
  margin-right: var(--ui9d-spacing-sm);
  font-size: 2rem;
  width: 2.4rem;
  text-align: center;
}

/* Carousel */
.ui9d-carousel {
  position: relative;
  width: 100%;
  height: 20rem;
  margin: 2rem 0;
  border-radius: var(--ui9d-radius-lg);
  overflow: hidden;
  box-shadow: 0 0.5rem 2rem var(--ui9d-shadow);
}

.ui9d-carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: var(--ui9d-transition-slow);
  cursor: pointer;
}

.ui9d-carousel-slide.active {
  opacity: 1;
}

.ui9d-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ui9d-carousel-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--ui9d-spacing-xs);
}

.ui9d-carousel-dot {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: var(--ui9d-radius-full);
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--ui9d-transition);
}

.ui9d-carousel-dot.active {
  background: var(--ui9d-primary);
  width: 2rem;
}

/* Game Grid */
.ui9d-game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
  gap: var(--ui9d-spacing-sm);
  margin: var(--ui9d-spacing-lg) 0;
}

.ui9d-game-card {
  background: var(--ui9d-surface);
  border-radius: var(--ui9d-radius-md);
  padding: var(--ui9d-spacing-sm);
  text-align: center;
  transition: var(--ui9d-transition);
  cursor: pointer;
  border: 0.1rem solid transparent;
  position: relative;
  overflow: hidden;
}

.ui9d-game-card:hover {
  transform: translateY(-0.3rem);
  border-color: var(--ui9d-primary);
  box-shadow: 0 0.5rem 1.5rem var(--ui9d-glow);
}

.ui9d-game-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(244, 164, 96, 0.3), transparent);
  transition: left 0.5s;
}

.ui9d-game-card:hover::before {
  left: 100%;
}

.ui9d-game-icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto var(--ui9d-spacing-xs);
  border-radius: var(--ui9d-radius-md);
  overflow: hidden;
}

.ui9d-game-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ui9d-game-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ui9d-text);
  margin: 0;
  line-height: 1.3;
  height: 2.6rem;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* Content Sections */
.ui9d-section {
  margin: var(--ui9d-spacing-xl) 0;
  padding: var(--ui9d-spacing-lg);
  background: var(--ui9d-surface);
  border-radius: var(--ui9d-radius-lg);
  border: 0.1rem solid var(--ui9d-border);
}

.ui9d-section-title {
  font-family: var(--ui9d-font-display);
  font-size: 2.4rem;
  font-weight: bold;
  color: var(--ui9d-primary);
  margin-bottom: var(--ui9d-spacing-lg);
  text-align: center;
}

.ui9d-section-content {
  color: var(--ui9d-text);
  line-height: 1.6;
}

/* Footer */
.ui9d-footer {
  background: linear-gradient(180deg, var(--ui9d-surface) 0%, var(--ui9d-bg) 100%);
  border-top: 0.1rem solid var(--ui9d-border);
  padding: var(--ui9d-spacing-lg) 0 8rem; /* Extra space for mobile nav */
  margin-top: var(--ui9d-spacing-xl);
}

.ui9d-footer-content {
  text-align: center;
}

.ui9d-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--ui9d-spacing-md);
  margin-bottom: var(--ui9d-spacing-lg);
}

.ui9d-footer-link {
  color: var(--ui9d-muted);
  text-decoration: none;
  font-size: 1.4rem;
  transition: var(--ui9d-transition);
}

.ui9d-footer-link:hover {
  color: var(--ui9d-primary);
}

.ui9d-partners {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--ui9d-spacing-md);
  margin: var(--ui9d-spacing-lg) 0;
}

.ui9d-partner-logo {
  width: 4rem;
  height: 2rem;
  object-fit: contain;
  opacity: 0.7;
  transition: var(--ui9d-transition);
  filter: grayscale(1);
}

.ui9d-partner-logo:hover {
  opacity: 1;
  filter: grayscale(0);
}

.ui9d-copyright {
  color: var(--ui9d-muted);
  font-size: 1.2rem;
  margin-top: var(--ui9d-spacing-lg);
}

/* Mobile Navigation */
.ui9d-mobile-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(90deg, var(--ui9d-bg) 0%, var(--ui9d-surface) 100%);
  backdrop-filter: blur(1rem);
  border-top: 0.1rem solid var(--ui9d-border);
  z-index: 1000;
  padding: 0.5rem 0;
  display: none; /* Hidden on desktop */
}

.ui9d-nav-container {
  display: flex;
  justify-content: space-around;
  align-items: center;
  max-width: 43rem;
  margin: 0 auto;
  padding: 0 var(--ui9d-spacing-md);
}

.ui9d-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 6rem;
  min-height: 5.6rem;
  padding: var(--ui9d-spacing-xs);
  text-decoration: none;
  color: var(--ui9d-muted);
  transition: var(--ui9d-transition);
  border-radius: var(--ui9d-radius-md);
  position: relative;
}

.ui9d-nav-item:hover,
.ui9d-nav-item.active {
  color: var(--ui9d-primary);
  background: rgba(244, 164, 96, 0.1);
  transform: translateY(-0.2rem);
}

.ui9d-nav-icon {
  font-size: 2.4rem;
  margin-bottom: 0.2rem;
  transition: var(--ui9d-transition);
}

.ui9d-nav-item:hover .ui9d-nav-icon {
  transform: scale(1.1);
}

.ui9d-nav-label {
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  line-height: 1.2;
}

/* Responsive Design */
@media (max-width: 768px) {
  .ui9d-main {
    padding-bottom: 8rem; /* Space for mobile nav */
  }

  .ui9d-mobile-nav {
    display: block;
  }

  .ui9d-header-actions {
    display: none; /* Hide desktop buttons */
  }

  .ui9d-menu-toggle {
    display: flex; /* Show mobile menu toggle */
  }

  .ui9d-game-grid {
    grid-template-columns: repeat(auto-fill, minmax(7rem, 1fr));
  }

  .ui9d-carousel {
    height: 16rem;
  }

  .ui9d-section {
    padding: var(--ui9d-spacing-md);
  }

  .ui9d-footer {
    padding-bottom: 10rem; /* Extra space for mobile nav */
  }
}

@media (min-width: 769px) {
  .ui9d-menu-toggle {
    display: none; /* Hide mobile menu on desktop */
  }

  .ui9d-header-actions {
    display: flex; /* Show desktop buttons */
  }
}

/* Utility Classes */
.ui9d-text-center { text-align: center; }
.ui9d-text-left { text-align: left; }
.ui9d-text-right { text-align: right; }

.ui9d-mb-sm { margin-bottom: var(--ui9d-spacing-sm); }
.ui9d-mb-md { margin-bottom: var(--ui9d-spacing-md); }
.ui9d-mb-lg { margin-bottom: var(--ui9d-spacing-lg); }

.ui9d-mt-sm { margin-top: var(--ui9d-spacing-sm); }
.ui9d-mt-md { margin-top: var(--ui9d-spacing-md); }
.ui9d-mt-lg { margin-top: var(--ui9d-spacing-lg); }

.ui9d-hidden { display: none; }
.ui9d-visible { display: block; }

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

/* Focus styles for accessibility */
.ui9d-btn:focus,
.ui9d-nav-link:focus,
.ui9d-nav-item:focus {
  outline: 0.2rem solid var(--ui9d-primary);
  outline-offset: 0.2rem;
}

/* Loading states */
.ui9d-loading {
  opacity: 0.6;
  pointer-events: none;
}

.ui9d-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2rem;
  height: 2rem;
  margin: -1rem 0 0 -1rem;
  border: 0.2rem solid var(--ui9d-border);
  border-top: 0.2rem solid var(--ui9d-primary);
  border-radius: 50%;
  animation: ui9d-spin 1s linear infinite;
}

@keyframes ui9d-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}