/**
 * ph978 casino - Universal CSS Design System
 * Version: 34d0
 * Mobile-first responsive design for gaming platform
 */

/* Root Variables */
:root {
  --ui4d-primary: #5F9EA0;
  --ui4d-secondary: #2E4057;
  --ui4d-accent: #9966CC;
  --ui4d-accent-light: #DA70D6;
  --ui4d-bg: #1a1a1a;
  --ui4d-bg-light: #2d2d2d;
  --ui4d-bg-card: #333333;
  --ui4d-text: #ffffff;
  --ui4d-text-muted: #cccccc;
  --ui4d-text-dark: #666666;
  --ui4d-border: #404040;
  --ui4d-success: #28a745;
  --ui4d-warning: #ffc107;
  --ui4d-danger: #dc3545;
  --ui4d-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --ui4d-shadow-light: 0 2px 10px rgba(0, 0, 0, 0.2);
  --ui4d-border-radius: 8px;
  --ui4d-border-radius-lg: 12px;
  --ui4d-transition: all 0.3s ease;
  --ui4d-font-size: 62.5%; /* 1rem = 10px */
}

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

html {
  font-size: var(--ui4d-font-size);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--ui4d-bg);
  color: var(--ui4d-text);
  line-height: 1.5;
  font-size: 1.4rem;
  overflow-x: hidden;
}

/* Container System */
.ui4d-container {
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
}

.ui4d-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.ui4d-grid {
  display: grid;
  gap: 1.5rem;
}

/* Typography */
.ui4d-h1 {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--ui4d-text);
}

.ui4d-h2 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.8rem;
  color: var(--ui4d-text);
}

.ui4d-h3 {
  font-size: 1.8rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.6rem;
  color: var(--ui4d-text);
}

.ui4d-text {
  font-size: 1.4rem;
  line-height: 1.5;
  color: var(--ui4d-text);
}

.ui4d-text-muted {
  color: var(--ui4d-text-muted);
}

.ui4d-text-center {
  text-align: center;
}

/* Button Components */
.ui4d-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.2rem 2rem;
  font-size: 1.4rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--ui4d-border-radius);
  cursor: pointer;
  transition: var(--ui4d-transition);
  min-height: 44px;
  line-height: 1;
  position: relative;
  overflow: hidden;
  user-select: none;
}

.ui4d-btn-primary {
  background: linear-gradient(135deg, var(--ui4d-primary), var(--ui4d-accent));
  color: white;
  box-shadow: var(--ui4d-shadow-light);
}

.ui4d-btn-primary:hover,
.ui4d-btn-primary:focus {
  transform: translateY(-2px);
  box-shadow: var(--ui4d-shadow);
}

.ui4d-btn-secondary {
  background: var(--ui4d-secondary);
  color: white;
}

.ui4d-btn-accent {
  background: linear-gradient(135deg, var(--ui4d-accent), var(--ui4d-accent-light));
  color: white;
}

.ui4d-btn-outline {
  background: transparent;
  border: 2px solid var(--ui4d-primary);
  color: var(--ui4d-primary);
}

.ui4d-btn-sm {
  padding: 0.8rem 1.5rem;
  font-size: 1.2rem;
  min-height: 36px;
}

.ui4d-btn-lg {
  padding: 1.5rem 3rem;
  font-size: 1.6rem;
  min-height: 52px;
}

/* Header Navigation */
.ui4d-header {
  background: var(--ui4d-bg-light);
  border-bottom: 1px solid var(--ui4d-border);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: var(--ui4d-shadow-light);
}

.ui4d-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: 430px;
  margin: 0 auto;
}

.ui4d-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: var(--ui4d-text);
  font-weight: 600;
  font-size: 1.6rem;
}

.ui4d-logo img {
  width: 28px;
  height: 28px;
  border-radius: 4px;
}

.ui4d-nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.ui4d-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  color: var(--ui4d-text);
  font-size: 1.8rem;
  cursor: pointer;
  border-radius: 4px;
  transition: var(--ui4d-transition);
}

.ui4d-menu-toggle:hover {
  background: var(--ui4d-bg-card);
}

/* Mobile Menu */
.ui4d-mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--ui4d-bg-light);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  z-index: 999;
  padding-top: 7rem;
}

.ui4d-mobile-menu.ui4d-menu-open {
  transform: translateX(0);
}

.ui4d-mobile-nav {
  padding: 2rem 1.5rem;
}

.ui4d-mobile-nav-item {
  display: block;
  padding: 1.5rem 0;
  color: var(--ui4d-text);
  text-decoration: none;
  border-bottom: 1px solid var(--ui4d-border);
  font-size: 1.6rem;
  font-weight: 500;
  transition: var(--ui4d-transition);
}

.ui4d-mobile-nav-item:hover {
  color: var(--ui4d-primary);
  padding-left: 1rem;
}

/* Card Components */
.ui4d-card {
  background: var(--ui4d-bg-card);
  border-radius: var(--ui4d-border-radius);
  padding: 2rem;
  box-shadow: var(--ui4d-shadow-light);
  border: 1px solid var(--ui4d-border);
}

.ui4d-card-header {
  margin-bottom: 1.5rem;
}

.ui4d-card-title {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--ui4d-text);
  margin-bottom: 0.5rem;
}

.ui4d-card-subtitle {
  font-size: 1.2rem;
  color: var(--ui4d-text-muted);
}

.ui4d-card-body {
  margin-bottom: 1.5rem;
}

.ui4d-card-footer {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ui4d-border);
}

/* Carousel Component */
.ui4d-carousel {
  position: relative;
  margin-bottom: 2rem;
  border-radius: var(--ui4d-border-radius-lg);
  overflow: hidden;
  box-shadow: var(--ui4d-shadow);
  height: 200px;
}

.ui4d-carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease;
  cursor: pointer;
}

.ui4d-carousel-slide.ui4d-active {
  opacity: 1;
}

.ui4d-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ui4d-carousel-indicators {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.8rem;
}

.ui4d-carousel-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--ui4d-transition);
}

.ui4d-carousel-indicator.ui4d-active {
  background: white;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* Game Grid */
.ui4d-game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 1.2rem;
  margin-bottom: 2rem;
}

.ui4d-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 0.5rem;
  background: var(--ui4d-bg-card);
  border-radius: var(--ui4d-border-radius);
  border: 1px solid var(--ui4d-border);
  text-decoration: none;
  color: var(--ui4d-text);
  transition: var(--ui4d-transition);
  cursor: pointer;
  min-height: 100px;
}

.ui4d-game-item:hover,
.ui4d-game-item.ui4d-touch-active {
  transform: translateY(-4px);
  box-shadow: var(--ui4d-shadow);
  border-color: var(--ui4d-primary);
}

.ui4d-game-item img {
  width: 48px;
  height: 48px;
  border-radius: 6px;
  margin-bottom: 0.5rem;
  object-fit: cover;
}

.ui4d-game-name {
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  line-height: 1.2;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Section Styling */
.ui4d-section {
  margin-bottom: 3rem;
  padding-top: 8rem; /* Account for fixed header */
}

.ui4d-section:first-child {
  padding-top: 8rem;
}

.ui4d-section-title {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--ui4d-text);
  text-align: center;
  position: relative;
}

.ui4d-section-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--ui4d-primary), var(--ui4d-accent));
  border-radius: 2px;
}

/* Bottom Navigation */
.ui4d-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ui4d-bg-light);
  border-top: 1px solid var(--ui4d-border);
  z-index: 1000;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
}

.ui4d-bottom-nav-container {
  display: flex;
  max-width: 430px;
  margin: 0 auto;
  height: 60px;
}

.ui4d-bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--ui4d-text-muted);
  transition: var(--ui4d-transition);
  position: relative;
  min-height: 60px;
}

.ui4d-bottom-nav-item:hover,
.ui4d-bottom-nav-item.ui4d-active {
  color: var(--ui4d-primary);
}

.ui4d-bottom-nav-item.ui4d-clicked {
  transform: scale(0.9);
}

.ui4d-bottom-nav-icon {
  font-size: 2rem;
  margin-bottom: 0.2rem;
}

.ui4d-bottom-nav-label {
  font-size: 1rem;
  font-weight: 500;
}

/* Content Spacing */
.ui4d-main-content {
  flex: 1;
  margin-bottom: 80px; /* Space for bottom nav */
}

/* Footer */
.ui4d-footer {
  background: var(--ui4d-secondary);
  color: var(--ui4d-text);
  padding: 3rem 0 8rem;
  margin-top: 4rem;
}

.ui4d-footer-content {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

.ui4d-footer-section h3 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
  color: var(--ui4d-primary);
}

.ui4d-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.ui4d-footer-link {
  color: var(--ui4d-text-muted);
  text-decoration: none;
  font-size: 1.2rem;
  transition: var(--ui4d-transition);
}

.ui4d-footer-link:hover {
  color: var(--ui4d-primary);
}

.ui4d-partners {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.ui4d-partner-logo {
  width: 100%;
  height: 40px;
  object-fit: contain;
  opacity: 0.7;
  transition: var(--ui4d-transition);
}

.ui4d-partner-logo:hover {
  opacity: 1;
}

.ui4d-copyright {
  text-align: center;
  font-size: 1.2rem;
  color: var(--ui4d-text-muted);
  border-top: 1px solid var(--ui4d-border);
  padding-top: 1.5rem;
  margin-top: 2rem;
}

/* Utility Classes */
.ui4d-text-gradient {
  background: linear-gradient(135deg, var(--ui4d-primary), var(--ui4d-accent));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.ui4d-mb-0 { margin-bottom: 0; }
.ui4d-mb-1 { margin-bottom: 1rem; }
.ui4d-mb-2 { margin-bottom: 2rem; }
.ui4d-mb-3 { margin-bottom: 3rem; }

.ui4d-mt-0 { margin-top: 0; }
.ui4d-mt-1 { margin-top: 1rem; }
.ui4d-mt-2 { margin-top: 2rem; }
.ui4d-mt-3 { margin-top: 3rem; }

.ui4d-p-0 { padding: 0; }
.ui4d-p-1 { padding: 1rem; }
.ui4d-p-2 { padding: 2rem; }

.ui4d-hidden { display: none; }
.ui4d-visible { display: block; }

/* Responsive Design */
@media (min-width: 768px) {
  .ui4d-container {
    max-width: 430px;
  }
  
  .ui4d-game-grid {
    grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
  }
  
  .ui4d-bottom-nav {
    display: none;
  }
  
  .ui4d-main-content {
    margin-bottom: 0;
  }
  
  .ui4d-footer {
    padding-bottom: 3rem;
  }
}

/* Loading States */
.ui4d-lazy {
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.ui4d-loading {
  position: relative;
  overflow: hidden;
}

.ui4d-loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  animation: ui4d-shimmer 1.5s infinite;
}

@keyframes ui4d-shimmer {
  to {
    left: 100%;
  }
}

/* Touch Feedback */
@media (hover: none) and (pointer: coarse) {
  .ui4d-btn:active {
    transform: scale(0.95);
  }
  
  .ui4d-game-item:active {
    transform: translateY(-2px) scale(0.95);
  }
}

/* Print Styles */
@media print {
  .ui4d-header,
  .ui4d-bottom-nav,
  .ui4d-carousel {
    display: none;
  }
  
  .ui4d-main-content {
    margin-bottom: 0;
  }
  
  .ui4d-section {
    padding-top: 0;
  }
}