/**
 * PhPopular Gaming Platform CSS Design System
 * Mobile-first responsive design with custom prefix
 */

/* CSS Variables for consistent theming */
:root {
  /* Color Palette - #F8F8FF | #FF1493 | #262626 | #A0522D | #CD853F */
  --pg7a-primary: #FF1493;
  --pg7a-secondary: #A0522D;
  --pg7a-accent: #CD853F;
  --pg7a-bg-dark: #262626;
  --pg7a-bg-light: #F8F8FF;
  --pg7a-text-light: #F8F8FF;
  --pg7a-text-dark: #262626;
  --pg7a-text-muted: #888;
  --pg7a-border: #ddd;
  --pg7a-success: #28a745;
  --pg7a-warning: #ffc107;
  --pg7a-danger: #dc3545;

  /* Typography */
  --pg7a-font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --pg7a-font-size-base: 1.6rem;
  --pg7a-line-height: 1.5;

  /* Spacing */
  --pg7a-spacing-xs: 0.4rem;
  --pg7a-spacing-sm: 0.8rem;
  --pg7a-spacing-md: 1.6rem;
  --pg7a-spacing-lg: 2.4rem;
  --pg7a-spacing-xl: 3.2rem;

  /* Border Radius */
  --pg7a-radius-sm: 0.4rem;
  --pg7a-radius-md: 0.8rem;
  --pg7a-radius-lg: 1.2rem;
  --pg7a-radius-xl: 1.6rem;

  /* Shadows */
  --pg7a-shadow-sm: 0 0.2rem 0.4rem rgba(0, 0, 0, 0.1);
  --pg7a-shadow-md: 0 0.4rem 0.8rem rgba(0, 0, 0, 0.15);
  --pg7a-shadow-lg: 0 0.8rem 1.6rem rgba(0, 0, 0, 0.2);

  /* Z-index layers */
  --pg7a-z-header: 1000;
  --pg7a-z-bottom-nav: 1000;
  --pg7a-z-mobile-menu: 9999;
  --pg7a-z-overlay: 9998;
  --pg7a-z-notification: 10000;

  /* Transitions */
  --pg7a-transition-fast: 0.2s ease;
  --pg7a-transition-medium: 0.3s ease;
  --pg7a-transition-slow: 0.5s ease;
}

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

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

body {
  font-family: var(--pg7a-font-primary);
  font-size: var(--pg7a-font-size-base);
  line-height: var(--pg7a-line-height);
  background: linear-gradient(135deg, var(--pg7a-bg-dark) 0%, #1a1a1a 100%);
  color: var(--pg7a-text-light);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Container and Layout */
.pg7a-container {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 var(--pg7a-spacing-md);
}

.pg7a-wrapper {
  min-height: 100vh;
  padding-bottom: 8rem; /* Space for bottom nav on mobile */
}

.pg7a-grid {
  display: grid;
  gap: var(--pg7a-spacing-md);
}

.pg7a-flex {
  display: flex;
  align-items: center;
}

.pg7a-flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pg7a-flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Header */
.pg7a-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--pg7a-z-header);
  background: linear-gradient(90deg, var(--pg7a-bg-dark) 0%, #1a1a1a 100%);
  border-bottom: 0.1rem solid var(--pg7a-primary);
  box-shadow: var(--pg7a-shadow-md);
  backdrop-filter: blur(1rem);
}

.pg7a-header-content {
  padding: var(--pg7a-spacing-sm) var(--pg7a-spacing-md);
  height: 6rem;
}

.pg7a-logo {
  display: flex;
  align-items: center;
  gap: var(--pg7a-spacing-sm);
  text-decoration: none;
  color: var(--pg7a-text-light);
  font-weight: bold;
  font-size: 2rem;
}

.pg7a-logo img {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: var(--pg7a-radius-sm);
}

.pg7a-header-actions {
  display: flex;
  gap: var(--pg7a-spacing-sm);
  align-items: center;
}

/* Buttons */
.pg7a-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--pg7a-spacing-sm) var(--pg7a-spacing-md);
  border: none;
  border-radius: var(--pg7a-radius-md);
  font-size: 1.4rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--pg7a-transition-fast);
  min-height: 4.4rem; /* Touch-friendly minimum */
  min-width: 8rem;
}

.pg7a-btn-primary {
  background: linear-gradient(135deg, var(--pg7a-primary) 0%, #ff1493cc 100%);
  color: var(--pg7a-text-light);
  box-shadow: var(--pg7a-shadow-sm);
}

.pg7a-btn-primary:hover {
  background: linear-gradient(135deg, #ff1493cc 0%, var(--pg7a-primary) 100%);
  transform: translateY(-0.1rem);
  box-shadow: var(--pg7a-shadow-md);
}

.pg7a-btn-secondary {
  background: linear-gradient(135deg, var(--pg7a-secondary) 0%, #a0522dcc 100%);
  color: var(--pg7a-text-light);
  box-shadow: var(--pg7a-shadow-sm);
}

.pg7a-btn-secondary:hover {
  background: linear-gradient(135deg, #a0522dcc 0%, var(--pg7a-secondary) 100%);
  transform: translateY(-0.1rem);
  box-shadow: var(--pg7a-shadow-md);
}

.pg7a-btn-outline {
  background: transparent;
  color: var(--pg7a-primary);
  border: 0.2rem solid var(--pg7a-primary);
}

.pg7a-btn-outline:hover {
  background: var(--pg7a-primary);
  color: var(--pg7a-text-light);
}

/* Navigation Menu */
.pg7a-nav-menu {
  display: flex;
  gap: var(--pg7a-spacing-md);
  list-style: none;
}

.pg7a-nav-item a {
  color: var(--pg7a-text-light);
  text-decoration: none;
  padding: var(--pg7a-spacing-sm) var(--pg7a-spacing-md);
  border-radius: var(--pg7a-radius-sm);
  transition: all var(--pg7a-transition-fast);
  font-weight: 500;
}

.pg7a-nav-item a:hover {
  background: var(--pg7a-primary);
  color: var(--pg7a-text-light);
}

/* Mobile Menu */
.pg7a-mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--pg7a-text-light);
  font-size: 2.4rem;
  cursor: pointer;
  padding: var(--pg7a-spacing-xs);
  border-radius: var(--pg7a-radius-sm);
}

.pg7a-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 30rem;
  height: 100vh;
  background: var(--pg7a-bg-dark);
  z-index: var(--pg7a-z-mobile-menu);
  transition: right var(--pg7a-transition-medium);
  padding: var(--pg7a-spacing-xl) var(--pg7a-spacing-md);
  box-shadow: var(--pg7a-shadow-lg);
}

.pg7a-mobile-menu.active {
  right: 0;
}

.pg7a-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  z-index: var(--pg7a-z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: all var(--pg7a-transition-medium);
}

.pg7a-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.pg7a-mobile-nav-list {
  list-style: none;
  margin-top: var(--pg7a-spacing-lg);
}

.pg7a-mobile-nav-item {
  margin-bottom: var(--pg7a-spacing-sm);
}

.pg7a-mobile-nav-link {
  display: block;
  padding: var(--pg7a-spacing-md);
  color: var(--pg7a-text-light);
  text-decoration: none;
  border-radius: var(--pg7a-radius-md);
  transition: all var(--pg7a-transition-fast);
  font-weight: 500;
}

.pg7a-mobile-nav-link:hover {
  background: var(--pg7a-primary);
  color: var(--pg7a-text-light);
}

/* Main Content */
.pg7a-main {
  padding-top: 6rem; /* Space for fixed header */
  min-height: calc(100vh - 6rem);
}

.pg7a-section {
  padding: var(--pg7a-spacing-xl) 0;
}

.pg7a-section-title {
  font-size: 2.4rem;
  font-weight: bold;
  color: var(--pg7a-primary);
  margin-bottom: var(--pg7a-spacing-lg);
  text-align: center;
}

/* Carousel */
.pg7a-carousel {
  position: relative;
  width: 100%;
  height: 20rem;
  overflow: hidden;
  border-radius: var(--pg7a-radius-lg);
  margin-bottom: var(--pg7a-spacing-xl);
  box-shadow: var(--pg7a-shadow-lg);
}

.pg7a-carousel-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.pg7a-carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity var(--pg7a-transition-medium);
  cursor: pointer;
}

.pg7a-carousel-slide.active {
  opacity: 1;
}

.pg7a-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pg7a-carousel-dots {
  position: absolute;
  bottom: var(--pg7a-spacing-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--pg7a-spacing-xs);
}

.pg7a-carousel-dot {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all var(--pg7a-transition-fast);
}

.pg7a-carousel-dot.active {
  background: var(--pg7a-primary);
  transform: scale(1.2);
}

/* Game Grid */
.pg7a-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--pg7a-spacing-sm);
  margin-bottom: var(--pg7a-spacing-xl);
}

.pg7a-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--pg7a-spacing-sm);
  border-radius: var(--pg7a-radius-md);
  background: rgba(255, 255, 255, 0.05);
  transition: all var(--pg7a-transition-fast);
  cursor: pointer;
  text-decoration: none;
  color: var(--pg7a-text-light);
  min-height: 8rem;
}

.pg7a-game-item:hover {
  background: rgba(255, 20, 147, 0.1);
  transform: translateY(-0.2rem);
  box-shadow: var(--pg7a-shadow-sm);
}

.pg7a-game-icon {
  width: 4rem;
  height: 4rem;
  object-fit: cover;
  border-radius: var(--pg7a-radius-sm);
  margin-bottom: var(--pg7a-spacing-xs);
}

.pg7a-game-name {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  width: 100%;
}

/* Cards */
.pg7a-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--pg7a-radius-lg);
  padding: var(--pg7a-spacing-md);
  margin-bottom: var(--pg7a-spacing-md);
  box-shadow: var(--pg7a-shadow-sm);
  transition: all var(--pg7a-transition-fast);
}

.pg7a-card:hover {
  box-shadow: var(--pg7a-shadow-md);
  transform: translateY(-0.1rem);
}

.pg7a-card-title {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--pg7a-primary);
  margin-bottom: var(--pg7a-spacing-sm);
}

/* Bottom Navigation */
.pg7a-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--pg7a-z-bottom-nav);
  background: linear-gradient(90deg, var(--pg7a-bg-dark) 0%, #1a1a1a 100%);
  border-top: 0.1rem solid var(--pg7a-primary);
  padding: var(--pg7a-spacing-xs) 0;
  box-shadow: var(--pg7a-shadow-lg);
  backdrop-filter: blur(1rem);
}

.pg7a-bottom-nav-container {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 5.6rem;
  max-width: 430px;
  margin: 0 auto;
}

.pg7a-bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 6rem;
  min-height: 5rem;
  padding: var(--pg7a-spacing-xs);
  border: none;
  background: none;
  color: var(--pg7a-text-muted);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--pg7a-transition-fast);
  border-radius: var(--pg7a-radius-md);
}

.pg7a-bottom-nav-item:hover,
.pg7a-bottom-nav-item.active {
  color: var(--pg7a-primary);
  background: rgba(255, 20, 147, 0.1);
  transform: scale(1.05);
}

.pg7a-bottom-nav-icon {
  font-size: 2.4rem;
  margin-bottom: 0.2rem;
}

.pg7a-bottom-nav-text {
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
}

/* Footer */
.pg7a-footer {
  background: linear-gradient(135deg, var(--pg7a-bg-dark) 0%, #1a1a1a 100%);
  padding: var(--pg7a-spacing-xl) 0 var(--pg7a-spacing-lg);
  margin-top: var(--pg7a-spacing-xl);
  border-top: 0.1rem solid var(--pg7a-primary);
}

.pg7a-footer-content {
  text-align: center;
}

.pg7a-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--pg7a-spacing-md);
  margin-bottom: var(--pg7a-spacing-lg);
}

.pg7a-footer-link {
  color: var(--pg7a-text-light);
  text-decoration: none;
  padding: var(--pg7a-spacing-sm) var(--pg7a-spacing-md);
  border-radius: var(--pg7a-radius-sm);
  transition: all var(--pg7a-transition-fast);
  font-weight: 500;
}

.pg7a-footer-link:hover {
  background: var(--pg7a-primary);
  color: var(--pg7a-text-light);
}

.pg7a-partners {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--pg7a-spacing-md);
  margin: var(--pg7a-spacing-lg) 0;
}

.pg7a-partner-icon {
  width: 4rem;
  height: 4rem;
  object-fit: contain;
  opacity: 0.7;
  transition: opacity var(--pg7a-transition-fast);
}

.pg7a-partner-icon:hover {
  opacity: 1;
}

.pg7a-copyright {
  color: var(--pg7a-text-muted);
  font-size: 1.2rem;
  margin-top: var(--pg7a-spacing-lg);
}

/* Notifications */
.pg7a-notification {
  position: fixed;
  top: 8rem;
  right: -100%;
  z-index: var(--pg7a-z-notification);
  background: var(--pg7a-bg-dark);
  color: var(--pg7a-text-light);
  padding: var(--pg7a-spacing-md);
  border-radius: var(--pg7a-radius-md);
  box-shadow: var(--pg7a-shadow-lg);
  transition: right var(--pg7a-transition-medium);
  max-width: 30rem;
  font-weight: 500;
}

.pg7a-notification.show {
  right: var(--pg7a-spacing-md);
}

.pg7a-notification-success {
  border-left: 0.4rem solid var(--pg7a-success);
}

.pg7a-notification-warning {
  border-left: 0.4rem solid var(--pg7a-warning);
}

.pg7a-notification-error {
  border-left: 0.4rem solid var(--pg7a-danger);
}

/* Scroll to Top Button */
.pg7a-scroll-top {
  position: fixed;
  bottom: 10rem;
  right: var(--pg7a-spacing-md);
  z-index: var(--pg7a-z-bottom-nav);
  background: var(--pg7a-primary);
  color: var(--pg7a-text-light);
  border: none;
  border-radius: 50%;
  width: 4.4rem;
  height: 4.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--pg7a-transition-medium);
  box-shadow: var(--pg7a-shadow-md);
}

.pg7a-scroll-top.show {
  opacity: 1;
  visibility: visible;
}

.pg7a-scroll-top:hover {
  transform: scale(1.1);
  box-shadow: var(--pg7a-shadow-lg);
}

/* Utility Classes */
.pg7a-text-center { text-align: center; }
.pg7a-text-left { text-align: left; }
.pg7a-text-right { text-align: right; }

.pg7a-mb-sm { margin-bottom: var(--pg7a-spacing-sm); }
.pg7a-mb-md { margin-bottom: var(--pg7a-spacing-md); }
.pg7a-mb-lg { margin-bottom: var(--pg7a-spacing-lg); }
.pg7a-mb-xl { margin-bottom: var(--pg7a-spacing-xl); }

.pg7a-mt-sm { margin-top: var(--pg7a-spacing-sm); }
.pg7a-mt-md { margin-top: var(--pg7a-spacing-md); }
.pg7a-mt-lg { margin-top: var(--pg7a-spacing-lg); }
.pg7a-mt-xl { margin-top: var(--pg7a-spacing-xl); }

.pg7a-hidden { display: none; }
.pg7a-visible { display: block; }

/* Responsive Design */
@media (max-width: 768px) {
  .pg7a-mobile-menu-toggle {
    display: block;
  }

  .pg7a-nav-menu {
    display: none;
  }

  .pg7a-game-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--pg7a-spacing-xs);
  }

  .pg7a-game-icon {
    width: 3.5rem;
    height: 3.5rem;
  }

  .pg7a-game-name {
    font-size: 0.9rem;
  }

  .pg7a-bottom-nav {
    display: block;
  }

  .pg7a-wrapper {
    padding-bottom: 8rem;
  }

  .pg7a-carousel {
    height: 18rem;
  }
}

@media (min-width: 769px) {
  .pg7a-bottom-nav {
    display: none;
  }

  .pg7a-wrapper {
    padding-bottom: 0;
  }

  .pg7a-game-grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .pg7a-carousel {
    height: 25rem;
  }
}

@media (max-width: 430px) {
  .pg7a-container {
    padding: 0 var(--pg7a-spacing-sm);
  }

  .pg7a-game-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pg7a-carousel {
    height: 16rem;
  }
}

/* Loading States */
.pg7a-loading {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  border: 0.2rem solid var(--pg7a-border);
  border-top: 0.2rem solid var(--pg7a-primary);
  border-radius: 50%;
  animation: pg7a-spin 1s linear infinite;
}

@keyframes pg7a-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Focus States for Accessibility */
.pg7a-btn:focus,
.pg7a-nav-link:focus,
.pg7a-game-item:focus {
  outline: 0.2rem solid var(--pg7a-primary);
  outline-offset: 0.2rem;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --pg7a-text-muted: #ccc;
    --pg7a-border: #fff;
  }
}

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