:root {
  /* Color palette */
  --uif3-primary: #FFE135;
  --uif3-secondary: #BDB76B;
  --uif3-dark: #0C0C0C;
  --uif3-gray: #2C3E50;
  --uif3-light: #FFFFFF;
  --uif3-bg: #1A1A1A;
  --uif3-card-bg: #2C2C2C;
  --uif3-border: #333333;
  --uif3-text: #E0E0E0;
  --uif3-text-secondary: #BDB76B;

  /* Typography */
  --uif3-font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --uif3-font-size-base: 1.6rem;
  --uif3-line-height: 1.5;

  /* Spacing */
  --uif3-spacing-xs: 0.5rem;
  --uif3-spacing-sm: 1rem;
  --uif3-spacing-md: 1.5rem;
  --uif3-spacing-lg: 2rem;
  --uif3-spacing-xl: 3rem;

  /* Border radius */
  --uif3-radius-sm: 0.4rem;
  --uif3-radius-md: 0.8rem;
  --uif3-radius-lg: 1.2rem;

  /* Shadows */
  --uif3-shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --uif3-shadow-md: 0 4px 8px rgba(0,0,0,0.2);
  --uif3-shadow-lg: 0 8px 16px rgba(0,0,0,0.3);
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 62.5%; /* 1rem = 10px */
  scroll-behavior: smooth;
}

body {
  font-family: var(--uif3-font-primary);
  font-size: var(--uif3-font-size-base);
  line-height: var(--uif3-line-height);
  background-color: var(--uif3-bg);
  color: var(--uif3-text);
  overflow-x: hidden;
}

/* Container */
.uif3-container {
  max-width: 430px;
  margin: 0 auto;
  padding: 0 var(--uif3-spacing-sm);
}

.uif3-wrapper {
  min-height: 100vh;
  padding-bottom: 8rem; /* Space for bottom nav on mobile */
}

/* Grid system */
.uif3-grid {
  display: grid;
  gap: var(--uif3-spacing-sm);
}

.uif3-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.uif3-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.uif3-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Header */
.uif3-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(135deg, var(--uif3-dark) 0%, var(--uif3-gray) 100%);
  border-bottom: 1px solid var(--uif3-border);
  z-index: 1000;
  box-shadow: var(--uif3-shadow-md);
}

.uif3-header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--uif3-spacing-sm);
  max-width: 430px;
  margin: 0 auto;
}

.uif3-logo {
  display: flex;
  align-items: center;
  gap: var(--uif3-spacing-xs);
  text-decoration: none;
  color: var(--uif3-primary);
  font-weight: bold;
  font-size: 1.8rem;
}

.uif3-logo img {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--uif3-radius-sm);
}

.uif3-header-actions {
  display: flex;
  align-items: center;
  gap: var(--uif3-spacing-xs);
}

/* Buttons */
.uif3-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--uif3-spacing-xs) var(--uif3-spacing-sm);
  border: none;
  border-radius: var(--uif3-radius-sm);
  font-size: 1.4rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 4.4rem; /* Touch-friendly size */
  white-space: nowrap;
}

.uif3-btn-primary {
  background: linear-gradient(135deg, var(--uif3-primary) 0%, #FF5722 100%);
  color: var(--uif3-dark);
  box-shadow: var(--uif3-shadow-sm);
}

.uif3-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--uif3-shadow-md);
}

.uif3-btn-secondary {
  background: transparent;
  color: var(--uif3-primary);
  border: 2px solid var(--uif3-primary);
}

.uif3-btn-secondary:hover {
  background: var(--uif3-primary);
  color: var(--uif3-dark);
}

/* Navigation */
.uif3-nav {
  display: flex;
  align-items: center;
}

.uif3-nav-toggle {
  background: none;
  border: none;
  color: var(--uif3-primary);
  font-size: 2.4rem;
  cursor: pointer;
  padding: var(--uif3-spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4.4rem;
  height: 4.4rem;
}

/* Mobile menu */
.uif3-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 300px;
  height: 100vh;
  background: var(--uif3-dark);
  z-index: 9999;
  transition: right 0.3s ease;
  overflow-y: auto;
  box-shadow: var(--uif3-shadow-lg);
}

.uif3-mobile-menu.active {
  right: 0;
}

.uif3-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: all 0.3s ease;
}

.uif3-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.uif3-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--uif3-spacing-md);
  border-bottom: 1px solid var(--uif3-border);
}

.uif3-menu-close {
  background: none;
  border: none;
  color: var(--uif3-primary);
  font-size: 2.4rem;
  cursor: pointer;
  width: 4.4rem;
  height: 4.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.uif3-menu-nav {
  padding: var(--uif3-spacing-md);
}

.uif3-menu-nav ul {
  list-style: none;
}

.uif3-menu-nav li {
  border-bottom: 1px solid var(--uif3-border);
}

.uif3-menu-nav a {
  display: block;
  padding: var(--uif3-spacing-sm) 0;
  color: var(--uif3-text);
  text-decoration: none;
  transition: color 0.3s ease;
}

.uif3-menu-nav a:hover {
  color: var(--uif3-primary);
}

/* Main content */
.uif3-main {
  padding-top: 6rem; /* Space for fixed header */
}

.uif3-section {
  padding: var(--uif3-spacing-lg) 0;
}

.uif3-section-title {
  font-size: 2.4rem;
  font-weight: bold;
  margin-bottom: var(--uif3-spacing-md);
  text-align: center;
  color: var(--uif3-primary);
}

/* Cards */
.uif3-card {
  background: var(--uif3-card-bg);
  border-radius: var(--uif3-radius-md);
  padding: var(--uif3-spacing-md);
  box-shadow: var(--uif3-shadow-sm);
  transition: all 0.3s ease;
}

.uif3-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--uif3-shadow-md);
}

/* Carousel */
.uif3-carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--uif3-radius-md);
  margin-bottom: var(--uif3-spacing-lg);
}

.uif3-carousel-inner {
  display: flex;
  transition: transform 0.5s ease;
}

.uif3-carousel-item {
  min-width: 100%;
  position: relative;
}

.uif3-carousel-item img {
  width: 100%;
  height: auto;
  display: block;
}

.uif3-carousel-indicators {
  position: absolute;
  bottom: var(--uif3-spacing-sm);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--uif3-spacing-xs);
}

.uif3-carousel-indicator {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}

.uif3-carousel-indicator.active {
  background: var(--uif3-primary);
  transform: scale(1.2);
}

/* Game grid */
.uif3-game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: var(--uif3-spacing-sm);
  margin-bottom: var(--uif3-spacing-lg);
}

.uif3-game-item {
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.uif3-game-item:hover {
  transform: scale(1.05);
}

.uif3-game-icon {
  width: 100%;
  height: auto;
  border-radius: var(--uif3-radius-sm);
  margin-bottom: var(--uif3-spacing-xs);
  box-shadow: var(--uif3-shadow-sm);
}

.uif3-game-name {
  font-size: 1.2rem;
  color: var(--uif3-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Bottom navigation */
.uif3-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(135deg, var(--uif3-dark) 0%, var(--uif3-gray) 100%);
  border-top: 1px solid var(--uif3-border);
  z-index: 1000;
  display: none;
}

.uif3-bottom-nav-content {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 6rem;
  max-width: 430px;
  margin: 0 auto;
}

.uif3-bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 6rem;
  min-height: 6rem;
  text-decoration: none;
  color: var(--uif3-text-secondary);
  transition: all 0.3s ease;
  cursor: pointer;
}

.uif3-bottom-nav-item:hover,
.uif3-bottom-nav-item.active {
  color: var(--uif3-primary);
  transform: scale(1.1);
}

.uif3-bottom-nav-icon {
  font-size: 2.4rem;
  margin-bottom: 0.2rem;
}

.uif3-bottom-nav-text {
  font-size: 1rem;
  font-weight: 500;
}

/* Footer */
.uif3-footer {
  background: var(--uif3-dark);
  border-top: 1px solid var(--uif3-border);
  padding: var(--uif3-spacing-lg) 0 var(--uif3-spacing-xl);
  margin-top: var(--uif3-spacing-lg);
}

.uif3-footer-content {
  text-align: center;
}

.uif3-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--uif3-spacing-md);
  margin-bottom: var(--uif3-spacing-md);
}

.uif3-footer-links a {
  color: var(--uif3-text-secondary);
  text-decoration: none;
  font-size: 1.4rem;
  transition: color 0.3s ease;
}

.uif3-footer-links a:hover {
  color: var(--uif3-primary);
}

.uif3-partners {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--uif3-spacing-md);
  margin: var(--uif3-spacing-lg) 0;
}

.uif3-partner {
  width: 4rem;
  height: 4rem;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: all 0.3s ease;
}

.uif3-partner:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.1);
}

.uif3-copyright {
  color: var(--uif3-text-secondary);
  font-size: 1.2rem;
  margin-top: var(--uif3-spacing-md);
}

/* Utility classes */
.uif3-text-center {
  text-align: center;
}

.uif3-text-primary {
  color: var(--uif3-primary);
}

.uif3-text-secondary {
  color: var(--uif3-text-secondary);
}

.uif3-mb-sm {
  margin-bottom: var(--uif3-spacing-sm);
}

.uif3-mb-md {
  margin-bottom: var(--uif3-spacing-md);
}

.uif3-mb-lg {
  margin-bottom: var(--uif3-spacing-lg);
}

/* Responsive design */
@media (max-width: 768px) {
  .uif3-bottom-nav {
    display: block;
  }

  .uif3-wrapper {
    padding-bottom: 8rem;
  }

  .uif3-game-grid {
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
  }

  /* Ensure touch-friendly sizes */
  .uif3-btn,
  .uif3-nav-toggle,
  .uif3-menu-close,
  .uif3-bottom-nav-item {
    min-height: 4.4rem;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --uif3-text: #FFFFFF;
    --uif3-text-secondary: #FFE135;
    --uif3-border: #666666;
  }
}

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

/* Focus styles for accessibility */
.uif3-btn:focus,
.uif3-nav-toggle:focus,
.uif3-menu-close:focus,
.uif3-bottom-nav-item:focus {
  outline: 2px solid var(--uif3-primary);
  outline-offset: 2px;
}

/* Loading state */
.uif3-loading {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--uif3-border);
  border-top-color: var(--uif3-primary);
  border-radius: 50%;
  animation: uif3-spin 0.8s linear infinite;
}

@keyframes uif3-spin {
  to {
    transform: rotate(360deg);
  }
}

/* Error state */
.uif3-error {
  color: #ff4444;
  border-color: #ff4444 !important;
}

/* Success state */
.uif3-success {
  color: #44ff44;
}

/* Links */
.uif3-link {
  color: var(--uif3-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.uif3-link:hover {
  color: var(--uif3-secondary);
  text-decoration: underline;
}