/* okfan CSS Design System - Mobile-first with uidb- prefix */
/* Color Palette: #FFDFBA | #5D5D5D | #FFB6C1 | #0F0F23 | #FFFFBA */
/* Version 1.0 - Gaming platform styles */

/* CSS Variables */
:root {
  /* Color Scheme */
  --uidb-primary: #FFDFBA;
  --uidb-secondary: #5D5D5D;
  --uidb-accent: #FFB6C1;
  --uidb-dark: #0F0F23;
  --uidb-light: #FFFFBA;

  /* Extended Colors */
  --uidb-primary-dark: #E5C79A;
  --uidb-secondary-light: #7A7A7A;
  --uidb-accent-dark: #FF9EB3;
  --uidb-light-dark: #E5E59A;

  /* Typography */
  --uidb-font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --uidb-font-secondary: 'Georgia', 'Times New Roman', serif;

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

  /* Border Radius */
  --uidb-radius-sm: 0.25rem;
  --uidb-radius-md: 0.5rem;
  --uidb-radius-lg: 0.75rem;
  --uidb-radius-xl: 1rem;

  /* Shadows */
  --uidb-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --uidb-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.16);
  --uidb-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);

  /* Z-index */
  --uidb-z-dropdown: 1000;
  --uidb-z-sticky: 1020;
  --uidb-z-fixed: 1030;
  --uidb-z-modal: 1040;
  --uidb-z-popover: 1050;
  --uidb-z-tooltip: 1060;
}

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

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

body {
  font-family: var(--uidb-font-primary);
  font-size: 1.4rem;
  line-height: 1.5;
  color: var(--uidb-primary);
  background-color: var(--uidb-dark);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--uidb-spacing-md);
  color: var(--uidb-primary);
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.4rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.8rem; }
h5 { font-size: 1.6rem; }
h6 { font-size: 1.4rem; }

p {
  margin-bottom: var(--uidb-spacing-md);
  color: var(--uidb-primary);
}

a {
  color: var(--uidb-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--uidb-accent-dark);
}

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

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

.uidb-main {
  flex: 1;
  padding-bottom: 80px; /* Space for mobile nav */
}

/* Header Navigation */
.uidb-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--uidb-dark);
  border-bottom: 1px solid var(--uidb-secondary);
  z-index: var(--uidb-z-fixed);
  transition: all 0.3s ease;
}

.uidb-header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  padding: 0 var(--uidb-spacing-md);
}

.uidb-logo {
  display: flex;
  align-items: center;
  gap: var(--uidb-spacing-sm);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--uidb-primary);
}

.uidb-logo-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--uidb-radius-md);
}

.uidb-nav-buttons {
  display: flex;
  gap: var(--uidb-spacing-sm);
}

.uidb-btn {
  padding: var(--uidb-spacing-sm) var(--uidb-spacing-md);
  border: none;
  border-radius: var(--uidb-radius-md);
  font-size: 1.2rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: var(--uidb-spacing-xs);
}

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

.uidb-btn-primary:hover {
  background-color: var(--uidb-accent-dark);
  transform: translateY(-1px);
}

.uidb-btn-secondary {
  background-color: transparent;
  color: var(--uidb-primary);
  border: 1px solid var(--uidb-primary);
}

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

.uidb-menu-toggle {
  background: none;
  border: none;
  color: var(--uidb-primary);
  font-size: 1.8rem;
  cursor: pointer;
  padding: var(--uidb-spacing-sm);
  border-radius: var(--uidb-radius-md);
  transition: background-color 0.2s ease;
}

.uidb-menu-toggle:hover {
  background-color: var(--uidb-secondary);
}

/* Mobile Menu */
.uidb-mobile-menu {
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100vh;
  background-color: var(--uidb-dark);
  box-shadow: var(--uidb-shadow-lg);
  z-index: var(--uidb-z-modal);
  transition: right 0.3s ease;
  overflow-y: auto;
}

.uidb-mobile-menu.uidb-menu-open {
  right: 0;
}

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

.uidb-menu-close {
  background: none;
  border: none;
  color: var(--uidb-primary);
  font-size: 1.6rem;
  cursor: pointer;
  padding: var(--uidb-spacing-sm);
}

.uidb-menu-content {
  padding: var(--uidb-spacing-md);
}

.uidb-menu-link {
  display: block;
  padding: var(--uidb-spacing-md);
  color: var(--uidb-primary);
  border-radius: var(--uidb-radius-md);
  margin-bottom: var(--uidb-spacing-sm);
  transition: all 0.2s ease;
}

.uidb-menu-link:hover {
  background-color: var(--uidb-secondary);
  transform: translateX(4px);
}

.uidb-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--uidb-z-dropdown);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.uidb-menu-overlay.uidb-overlay-show {
  opacity: 1;
  visibility: visible;
}

/* Carousel */
.uidb-carousel {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  border-radius: var(--uidb-radius-lg);
  margin: var(--uidb-spacing-lg) 0;
}

.uidb-carousel-container {
  display: flex;
  transition: transform 0.5s ease;
  height: 100%;
}

.uidb-carousel-slide {
  min-width: 100%;
  height: 100%;
  position: relative;
}

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

.uidb-carousel-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(15, 15, 35, 0.9), transparent);
  padding: var(--uidb-spacing-lg);
}

.uidb-carousel-title {
  color: var(--uidb-primary);
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: var(--uidb-spacing-xs);
}

.uidb-carousel-description {
  color: var(--uidb-light);
  font-size: 1.2rem;
}

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

.uidb-carousel-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--uidb-secondary);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

/* Game Categories */
.uidb-categories {
  margin: var(--uidb-spacing-xl) 0;
}

.uidb-category-tabs {
  display: flex;
  gap: var(--uidb-spacing-sm);
  overflow-x: auto;
  padding: var(--uidb-spacing-sm) 0;
  scrollbar-width: none;
}

.uidb-category-tabs::-webkit-scrollbar {
  display: none;
}

.uidb-category-btn {
  padding: var(--uidb-spacing-sm) var(--uidb-spacing-md);
  border: 1px solid var(--uidb-secondary);
  border-radius: var(--uidb-radius-lg);
  background-color: transparent;
  color: var(--uidb-primary);
  font-size: 1.2rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.uidb-category-btn.uidb-active {
  background-color: var(--uidb-accent);
  color: var(--uidb-dark);
  border-color: var(--uidb-accent);
}

.uidb-category-btn:hover {
  border-color: var(--uidb-accent);
  transform: translateY(-1px);
}

/* Game Grid */
.uidb-games-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--uidb-spacing-sm);
  margin: var(--uidb-spacing-lg) 0;
}

.uidb-game-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--uidb-radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s ease;
  background-color: var(--uidb-secondary);
}

.uidb-game-item:hover {
  transform: scale(1.05);
  box-shadow: var(--uidb-shadow-lg);
  z-index: 1;
}

.uidb-game-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s ease;
}

.uidb-game-item:hover .uidb-game-image {
  transform: scale(1.1);
}

.uidb-game-name {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: var(--uidb-primary);
  font-size: 0.8rem;
  padding: var(--uidb-spacing-sm);
  text-align: center;
  font-weight: 500;
}

/* Mobile Bottom Navigation */
.uidb-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--uidb-dark);
  border-top: 1px solid var(--uidb-secondary);
  z-index: var(--uidb-z-fixed);
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0 var(--uidb-spacing-sm);
}

.uidb-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  height: 50px;
  color: var(--uidb-secondary);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  border-radius: var(--uidb-radius-md);
  gap: 2px;
}

.uidb-nav-item:hover {
  color: var(--uidb-accent);
  background-color: var(--uidb-secondary);
}

.uidb-nav-item.uidb-active {
  color: var(--uidb-accent);
}

.uidb-nav-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.uidb-nav-text {
  font-size: 0.8rem;
  line-height: 1;
  margin-top: 2px;
}

/* Content Sections */
.uidb-section {
  margin: var(--uidb-spacing-xxl) 0;
  padding: var(--uidb-spacing-lg);
  background-color: rgba(93, 93, 93, 0.1);
  border-radius: var(--uidb-radius-lg);
  border: 1px solid var(--uidb-secondary);
}

.uidb-section-title {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: var(--uidb-spacing-lg);
  color: var(--uidb-accent);
  text-align: center;
}

.uidb-section-content {
  color: var(--uidb-primary);
  line-height: 1.6;
}

/* Feature Cards */
.uidb-feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--uidb-spacing-md);
  margin: var(--uidb-spacing-lg) 0;
}

.uidb-feature-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--uidb-secondary);
  border-radius: var(--uidb-radius-md);
  padding: var(--uidb-spacing-md);
  transition: all 0.2s ease;
}

.uidb-feature-card:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.uidb-feature-icon {
  width: 40px;
  height: 40px;
  margin-bottom: var(--uidb-spacing-sm);
  color: var(--uidb-accent);
}

.uidb-feature-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: var(--uidb-spacing-xs);
  color: var(--uidb-primary);
}

.uidb-feature-description {
  font-size: 1.2rem;
  color: var(--uidb-primary);
  line-height: 1.5;
}

/* Footer */
.uidb-footer {
  background-color: var(--uidb-dark);
  border-top: 1px solid var(--uidb-secondary);
  padding: var(--uidb-spacing-xxl) 0 var(--uidb-spacing-lg);
  margin-top: auto;
}

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

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

.uidb-footer-link {
  color: var(--uidb-accent);
  font-size: 1.2rem;
  transition: color 0.2s ease;
}

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

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

.uidb-partner-logo {
  width: 40px;
  height: 40px;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

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

.uidb-copyright {
  color: var(--uidb-secondary);
  font-size: 1.1rem;
  margin-top: var(--uidb-spacing-lg);
}

/* Utility Classes */
.uidb-text-center {
  text-align: center;
}

.uidb-text-left {
  text-align: left;
}

.uidb-text-right {
  text-align: right;
}

.uidb-hidden {
  display: none;
}

.uidb-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.uidb-loading {
  position: relative;
  pointer-events: none;
}

.uidb-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border: 2px solid var(--uidb-secondary);
  border-top: 2px solid var(--uidb-accent);
  border-radius: 50%;
  animation: uidb-spin 1s linear infinite;
}

/* Animations */
@keyframes uidb-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes uidb-fade-in {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes uidb-slide-in-left {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

@keyframes uidb-slide-in-right {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

/* Notification */
.uidb-notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: var(--uidb-spacing-md);
  border-radius: var(--uidb-radius-md);
  font-size: 1.2rem;
  z-index: var(--uidb-z-tooltip);
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.uidb-notification.uidb-notification-show {
  transform: translateX(0);
}

.uidb-notification-success {
  background-color: var(--uidb-light);
  color: var(--uidb-dark);
}

.uidb-notification-error {
  background-color: var(--uidb-accent);
  color: var(--uidb-dark);
}

.uidb-notification-info {
  background-color: var(--uidb-primary);
  color: var(--uidb-dark);
}

/* Lazy Loading */
.uidb-lazy {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.uidb-lazy:not([src]) {
  background-color: var(--uidb-secondary);
}

/* Responsive Design */
@media (min-width: 769px) {
  .uidb-bottom-nav {
    display: none;
  }

  .uidb-main {
    padding-bottom: 0;
  }

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

  .uidb-container {
    max-width: 1200px;
    padding: 0 var(--uidb-spacing-lg);
  }

  .uidb-header {
    border-bottom: 1px solid var(--uidb-secondary);
  }

  .uidb-mobile-menu {
    display: none;
  }

  .uidb-menu-toggle {
    display: none;
  }
}

@media (max-width: 768px) {
  .uidb-games-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  h1 { font-size: 2.4rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.8rem; }
}

@media (max-width: 480px) {
  .uidb-games-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--uidb-spacing-xs);
  }

  .uidb-carousel {
    height: 160px;
  }

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

  .uidb-game-name {
    font-size: 0.7rem;
  }
}

/* Touch Device Optimizations */
@media (hover: none) {
  .uidb-game-item:hover {
    transform: none;
  }

  .uidb-nav-item:hover {
    background-color: transparent;
  }

  .uidb-btn:hover {
    transform: none;
  }
}

.uidb-touch-device .uidb-game-item:active {
  transform: scale(0.95);
}

.uidb-touch-device .uidb-btn:active {
  transform: scale(0.95);
}

/* Print Styles */
@media print {
  .uidb-header,
  .uidb-bottom-nav,
  .uidb-mobile-menu,
  .uidb-menu-overlay,
  .uidb-carousel {
    display: none;
  }

  .uidb-main {
    padding-bottom: 0;
  }

  body {
    color: black;
    background: white;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --uidb-secondary: #FFFFFF;
    --uidb-dark: #000000;
    --uidb-accent: #FF0000;
  }
}

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

  .uidb-carousel-container {
    transition: none;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: light) {
  :root {
    --uidb-dark: #FFFFFF;
    --uidb-primary: #0F0F23;
    --uidb-secondary: #5D5D5D;
    --uidb-light: #FFFFBA;
  }
}