:root {
  /* Color palette - Dark blue, Light teal, Dark teal */
  --sfa8-primary: #2C3E50;
  --sfa8-secondary: #004D40;
  --sfa8-accent: #E0F2F1;
  --sfa8-bg: #1a1a1a;
  --sfa8-text: #f5f5f5;
  --sfa8-text-secondary: #b0b0b0;
  --sfa8-border: #333;
  --sfa8-hover: #34495e;
  --sfa8-gradient: linear-gradient(135deg, #2C3E50 0%, #004D40 100%);

  /* Typography */
  --sfa8-font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --sfa8-font-mono: 'Courier New', monospace;

  /* Spacing */
  --sfa8-spacing-xs: 0.25rem;
  --sfa8-spacing-sm: 0.5rem;
  --sfa8-spacing-md: 1rem;
  --sfa8-spacing-lg: 1.5rem;
  --sfa8-spacing-xl: 2rem;
  --sfa8-spacing-xxl: 3rem;

  /* Border radius */
  --sfa8-radius-sm: 0.25rem;
  --sfa8-radius-md: 0.5rem;
  --sfa8-radius-lg: 1rem;

  /* Shadows */
  --sfa8-shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --sfa8-shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --sfa8-shadow-lg: 0 10px 15px rgba(0,0,0,0.1);

  /* Transitions */
  --sfa8-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 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(--sfa8-font-primary);
  font-size: 1.6rem;
  line-height: 1.5;
  color: var(--sfa8-text);
  background: var(--sfa8-bg);
  overflow-x: hidden;
}

/* Typography utilities */
.sfa8-text-center { text-align: center; }
.sfa8-text-left { text-align: left; }
.sfa8-text-right { text-align: right; }
.sfa8-text-sm { font-size: 1.2rem; }
.sfa8-text-md { font-size: 1.6rem; }
.sfa8-text-lg { font-size: 2rem; }
.sfa8-text-xl { font-size: 2.4rem; }
.sfa8-text-2xl { font-size: 3.2rem; }
.sfa8-font-bold { font-weight: 700; }
.sfa8-font-semibold { font-weight: 600; }
.sfa8-font-medium { font-weight: 500; }

/* Container and layout */
.sfa8-container {
  max-width: 430px;
  margin: 0 auto;
  padding: 0 var(--sfa8-spacing-md);
}

.sfa8-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.sfa8-main {
  flex: 1;
  padding-bottom: 8rem; /* Space for bottom nav on mobile */
}

.sfa8-grid {
  display: grid;
  gap: var(--sfa8-spacing-md);
}

.sfa8-grid-2 { grid-template-columns: repeat(2, 1fr); }
.sfa8-grid-3 { grid-template-columns: repeat(3, 1fr); }
.sfa8-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Flexbox utilities */
.sfa8-flex { display: flex; }
.sfa8-flex-col { flex-direction: column; }
.sfa8-flex-row { flex-direction: row; }
.sfa8-items-center { align-items: center; }
.sfa8-items-start { align-items: flex-start; }
.sfa8-items-end { align-items: flex-end; }
.sfa8-justify-center { justify-content: center; }
.sfa8-justify-between { justify-content: space-between; }
.sfa8-justify-around { justify-content: space-around; }
.sfa8-gap-sm { gap: var(--sfa8-spacing-sm); }
.sfa8-gap-md { gap: var(--sfa8-spacing-md); }
.sfa8-gap-lg { gap: var(--sfa8-spacing-lg); }

/* Header and navigation */
.sfa8-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--sfa8-gradient);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--sfa8-border);
}

.sfa8-header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sfa8-spacing-sm) var(--sfa8-spacing-md);
  max-width: 430px;
  margin: 0 auto;
}

.sfa8-logo {
  display: flex;
  align-items: center;
  gap: var(--sfa8-spacing-sm);
  text-decoration: none;
  color: var(--sfa8-text);
}

.sfa8-logo-icon {
  width: 2.4rem;
  height: 2.4rem;
  background: var(--sfa8-accent);
  border-radius: var(--sfa8-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: var(--sfa8-primary);
}

.sfa8-logo-text {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--sfa8-text);
}

.sfa8-header-actions {
  display: flex;
  align-items: center;
  gap: var(--sfa8-spacing-sm);
}

.sfa8-btn {
  padding: var(--sfa8-spacing-sm) var(--sfa8-spacing-md);
  border: none;
  border-radius: var(--sfa8-radius-md);
  font-size: 1.4rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--sfa8-transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 4.4rem; /* Touch-friendly size */
}

.sfa8-btn-primary {
  background: var(--sfa8-accent);
  color: var(--sfa8-primary);
}

.sfa8-btn-primary:hover {
  background: #d4e8e7;
  transform: translateY(-1px);
}

.sfa8-btn-outline {
  background: transparent;
  color: var(--sfa8-text);
  border: 2px solid var(--sfa8-accent);
}

.sfa8-btn-outline:hover {
  background: var(--sfa8-accent);
  color: var(--sfa8-primary);
}

.sfa8-menu-toggle {
  background: none;
  border: none;
  color: var(--sfa8-text);
  font-size: 2.4rem;
  cursor: pointer;
  padding: var(--sfa8-spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 4.4rem;
  min-height: 4.4rem;
}

/* Mobile menu */
.sfa8-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 300px;
  height: 100vh;
  background: var(--sfa8-primary);
  z-index: 9999;
  transition: var(--sfa8-transition);
  overflow-y: auto;
  padding: var(--sfa8-spacing-xl) var(--sfa8-spacing-md);
}

.sfa8-mobile-menu.active {
  right: 0;
}

.sfa8-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: var(--sfa8-transition);
}

.sfa8-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.sfa8-nav-list {
  list-style: none;
}

.sfa8-nav-item {
  margin-bottom: var(--sfa8-spacing-md);
}

.sfa8-nav-link {
  color: var(--sfa8-text);
  text-decoration: none;
  font-size: 1.6rem;
  font-weight: 500;
  padding: var(--sfa8-spacing-sm) 0;
  display: block;
  transition: var(--sfa8-transition);
}

.sfa8-nav-link:hover {
  color: var(--sfa8-accent);
  padding-left: var(--sfa8-spacing-sm);
}

/* Carousel */
.sfa8-carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--sfa8-radius-lg);
  margin-bottom: var(--sfa8-spacing-lg);
}

.sfa8-carousel-container {
  position: relative;
  height: 200px;
  max-height: 250px;
}

.sfa8-carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  cursor: pointer;
}

.sfa8-carousel-slide.active {
  opacity: 1;
}

.sfa8-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--sfa8-radius-lg);
}

.sfa8-carousel-indicators {
  position: absolute;
  bottom: var(--sfa8-spacing-sm);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--sfa8-spacing-xs);
}

.sfa8-carousel-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--sfa8-transition);
}

.sfa8-carousel-indicator.active {
  background: var(--sfa8-accent);
  transform: scale(1.2);
}

/* Cards */
.sfa8-card {
  background: var(--sfa8-primary);
  border-radius: var(--sfa8-radius-lg);
  padding: var(--sfa8-spacing-md);
  border: 1px solid var(--sfa8-border);
  transition: var(--sfa8-transition);
}

.sfa8-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--sfa8-shadow-md);
}

.sfa8-card-header {
  margin-bottom: var(--sfa8-spacing-md);
}

.sfa8-card-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--sfa8-text);
  margin-bottom: var(--sfa8-spacing-sm);
}

.sfa8-card-body {
  color: var(--sfa8-text-secondary);
  line-height: 1.6;
}

/* Game grid */
.sfa8-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sfa8-spacing-sm);
  margin-bottom: var(--sfa8-spacing-lg);
}

.sfa8-game-item {
  background: var(--sfa8-primary);
  border-radius: var(--sfa8-radius-md);
  padding: var(--sfa8-spacing-sm);
  text-align: center;
  transition: var(--sfa8-transition);
  cursor: pointer;
  border: 1px solid var(--sfa8-border);
}

.sfa8-game-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--sfa8-shadow-sm);
  border-color: var(--sfa8-accent);
}

.sfa8-game-icon {
  width: 100%;
  height: 60px;
  object-fit: cover;
  border-radius: var(--sfa8-radius-sm);
  margin-bottom: var(--sfa8-spacing-xs);
}

.sfa8-game-name {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--sfa8-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Sections */
.sfa8-section {
  margin-bottom: var(--sfa8-spacing-xl);
}

.sfa8-section-title {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--sfa8-text);
  margin-bottom: var(--sfa8-spacing-md);
  text-align: center;
}

.sfa8-section-subtitle {
  font-size: 1.6rem;
  color: var(--sfa8-text-secondary);
  margin-bottom: var(--sfa8-spacing-lg);
  text-align: center;
}

/* Footer */
.sfa8-footer {
  background: var(--sfa8-gradient);
  padding: var(--sfa8-spacing-xl) var(--sfa8-spacing-md);
  margin-top: var(--sfa8-spacing-xxl);
  border-top: 1px solid var(--sfa8-border);
}

.sfa8-footer-content {
  max-width: 430px;
  margin: 0 auto;
}

.sfa8-footer-section {
  margin-bottom: var(--sfa8-spacing-lg);
}

.sfa8-footer-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--sfa8-text);
  margin-bottom: var(--sfa8-spacing-sm);
}

.sfa8-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sfa8-spacing-md);
  margin-bottom: var(--sfa8-spacing-lg);
}

.sfa8-footer-link {
  color: var(--sfa8-text-secondary);
  text-decoration: none;
  font-size: 1.4rem;
  transition: var(--sfa8-transition);
}

.sfa8-footer-link:hover {
  color: var(--sfa8-accent);
}

.sfa8-partners {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sfa8-spacing-sm);
  justify-content: center;
  margin-bottom: var(--sfa8-spacing-lg);
}

.sfa8-partner-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  opacity: 0.7;
  transition: var(--sfa8-transition);
}

.sfa8-partner-icon:hover {
  opacity: 1;
  transform: scale(1.1);
}

.sfa8-footer-bottom {
  text-align: center;
  padding-top: var(--sfa8-spacing-lg);
  border-top: 1px solid var(--sfa8-border);
  color: var(--sfa8-text-secondary);
  font-size: 1.2rem;
}

/* Bottom navigation */
.sfa8-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--sfa8-primary);
  border-top: 1px solid var(--sfa8-border);
  z-index: 1000;
  padding: var(--sfa8-spacing-xs) 0;
  display: none; /* Hidden by default, shown on mobile */
}

.sfa8-bottom-nav-content {
  display: flex;
  justify-content: space-around;
  align-items: center;
  max-width: 430px;
  margin: 0 auto;
}

.sfa8-bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 6rem;
  min-height: 5.6rem;
  padding: var(--sfa8-spacing-xs);
  text-decoration: none;
  color: var(--sfa8-text-secondary);
  transition: var(--sfa8-transition);
  cursor: pointer;
  border: none;
  background: none;
}

.sfa8-bottom-nav-item:hover,
.sfa8-bottom-nav-item.active {
  color: var(--sfa8-accent);
  transform: translateY(-2px);
}

.sfa8-bottom-nav-icon {
  font-size: 2.4rem;
  margin-bottom: var(--sfa8-spacing-xs);
}

.sfa8-bottom-nav-text {
  font-size: 1rem;
  font-weight: 500;
}

/* Scroll to top button */
.sfa8-scroll-top {
  position: fixed;
  bottom: 8rem;
  right: var(--sfa8-spacing-md);
  background: var(--sfa8-accent);
  color: var(--sfa8-primary);
  border: none;
  border-radius: 50%;
  width: 4.4rem;
  height: 4.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  cursor: pointer;
  transition: var(--sfa8-transition);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
}

.sfa8-scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.sfa8-scroll-top:hover {
  transform: translateY(-2px);
  box-shadow: var(--sfa8-shadow-md);
}

/* Responsive design */
@media (max-width: 768px) {
  .sfa8-bottom-nav {
    display: block;
  }

  .sfa8-main {
    padding-bottom: 8rem;
  }

  .sfa8-game-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .sfa8-container {
    padding: 0 var(--sfa8-spacing-sm);
  }

  .sfa8-section-title {
    font-size: 2rem;
  }

  .sfa8-card-title {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .sfa8-game-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfa8-carousel-container {
    height: 180px;
  }

  .sfa8-section-title {
    font-size: 1.8rem;
  }
}

/* Utility classes */
.sfa8-mb-sm { margin-bottom: var(--sfa8-spacing-sm); }
.sfa8-mb-md { margin-bottom: var(--sfa8-spacing-md); }
.sfa8-mb-lg { margin-bottom: var(--sfa8-spacing-lg); }
.sfa8-mb-xl { margin-bottom: var(--sfa8-spacing-xl); }

.sfa8-mt-sm { margin-top: var(--sfa8-spacing-sm); }
.sfa8-mt-md { margin-top: var(--sfa8-spacing-md); }
.sfa8-mt-lg { margin-top: var(--sfa8-spacing-lg); }
.sfa8-mt-xl { margin-top: var(--sfa8-spacing-xl); }

.sfa8-p-sm { padding: var(--sfa8-spacing-sm); }
.sfa8-p-md { padding: var(--sfa8-spacing-md); }
.sfa8-p-lg { padding: var(--sfa8-spacing-lg); }

.sfa8-px-sm { padding-left: var(--sfa8-spacing-sm); padding-right: var(--sfa8-spacing-sm); }
.sfa8-px-md { padding-left: var(--sfa8-spacing-md); padding-right: var(--sfa8-spacing-md); }
.sfa8-px-lg { padding-left: var(--sfa8-spacing-lg); padding-right: var(--sfa8-spacing-lg); }

.sfa8-py-sm { padding-top: var(--sfa8-spacing-sm); padding-bottom: var(--sfa8-spacing-sm); }
.sfa8-py-md { padding-top: var(--sfa8-spacing-md); padding-bottom: var(--sfa8-spacing-md); }
.sfa8-py-lg { padding-top: var(--sfa8-spacing-lg); padding-bottom: var(--sfa8-spacing-lg); }

.sfa8-hidden { display: none; }
.sfa8-block { display: block; }
.sfa8-inline-block { display: inline-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 */
.sfa8-btn:focus,
.sfa8-nav-link:focus,
.sfa8-bottom-nav-item:focus {
  outline: 2px solid var(--sfa8-accent);
  outline-offset: 2px;
}

/* Loading states */
.sfa8-loading {
  opacity: 0.6;
  pointer-events: none;
}

.sfa8-spinner {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--sfa8-border);
  border-top: 2px solid var(--sfa8-accent);
  border-radius: 50%;
  animation: sfa8-spin 1s linear infinite;
}

@keyframes sfa8-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}