/*
 * OG777 Mobile-First Design System
 * Version: 1.0.0
 * Author: OG777 Design Team
 * Mobile Optimized for 320px-430px viewports
 */

/* CSS Variables with ui1d prefix */
:root {
  --ui1d-primary: #E65100;
  --ui1d-secondary: #FFF176;
  --ui1d-accent: #FFCCCB;
  --ui1d-purple: #D8BFD8;
  --ui1d-dark: #333333;
  --ui1d-light: #FFFFFF;
  --ui1d-bg-primary: #FAFAFA;
  --ui1d-bg-secondary: #F5F5F5;
  --ui1d-text-primary: #333333;
  --ui1d-text-secondary: #666666;
  --ui1d-text-light: #999999;
  --ui1d-border: #E0E0E0;
  --ui1d-shadow: 0 2px 8px rgba(0,0,0,0.1);
  --ui1d-shadow-hover: 0 4px 16px rgba(0,0,0,0.15);
  --ui1d-radius: 8px;
  --ui1d-radius-small: 4px;
  --ui1d-radius-large: 16px;
  --ui1d-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --ui1d-font-size-xs: 1.0rem;
  --ui1d-font-size-sm: 1.2rem;
  --ui1d-font-size-base: 1.4rem;
  --ui1d-font-size-lg: 1.6rem;
  --ui1d-font-size-xl: 1.8rem;
  --ui1d-font-size-2xl: 2.4rem;
  --ui1d-font-size-3xl: 3.2rem;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: var(--ui1d-font-size-base);
  line-height: 1.5;
  color: var(--ui1d-text-primary);
  background-color: var(--ui1d-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Mobile-specific styles */
.ui1d-mobile {
  -webkit-tap-highlight-color: transparent;
}

.ui1d-touch .ui1d-btn:active,
.ui1d-touch .ui1d-game-item:active {
  transform: scale(0.95);
}

/* Layout Components */
.ui1d-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.ui1d-container {
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.6rem;
  width: 100%;
}

.ui1d-main {
  flex: 1;
  padding-top: 7rem; /* Account for fixed header */
  padding-bottom: 7rem; /* Account for fixed bottom nav */
}

/* Header Styles */
.ui1d-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(135deg, var(--ui1d-primary), #FF7043);
  box-shadow: var(--ui1d-shadow);
  backdrop-filter: blur(10px);
}

.ui1d-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.6rem;
  height: 6rem;
}

.ui1d-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--ui1d-light);
  font-weight: 700;
  font-size: var(--ui1d-font-size-xl);
}

.ui1d-logo img {
  width: 3.2rem;
  height: 3.2rem;
  margin-right: 0.8rem;
  border-radius: var(--ui1d-radius-small);
}

.ui1d-nav-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

/* Menu Button */
.ui1d-menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  background: transparent;
  border: none;
  width: 3rem;
  height: 3rem;
  cursor: pointer;
  padding: 0.4rem;
}

.ui1d-menu-btn span {
  display: block;
  width: 100%;
  height: 0.3rem;
  background: var(--ui1d-light);
  border-radius: 0.2rem;
  transition: var(--ui1d-transition);
}

.ui1d-menu-active span:nth-child(1) {
  transform: rotate(45deg) translate(0.6rem, 0.6rem);
}

.ui1d-menu-active span:nth-child(2) {
  opacity: 0;
}

.ui1d-menu-active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.6rem, -0.6rem);
}

/* Navigation Menu */
.ui1d-nav-menu {
  position: fixed;
  top: 6rem;
  left: 0;
  right: 0;
  background: var(--ui1d-light);
  box-shadow: var(--ui1d-shadow);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: var(--ui1d-transition);
  z-index: 999;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}

.ui1d-nav-active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.ui1d-nav-menu a {
  display: flex;
  align-items: center;
  padding: 1.6rem 2rem;
  color: var(--ui1d-text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--ui1d-border);
  transition: var(--ui1d-transition);
  font-weight: 500;
}

.ui1d-nav-menu a:hover,
.ui1d-nav-menu a:active {
  background: var(--ui1d-bg-secondary);
  color: var(--ui1d-primary);
}

.ui1d-nav-menu i {
  margin-right: 1.2rem;
  width: 2rem;
  color: var(--ui1d-secondary);
}

/* Button Styles */
.ui1d-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.2rem 2rem;
  border: none;
  border-radius: var(--ui1d-radius);
  font-size: var(--ui1d-font-size-base);
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: var(--ui1d-transition);
  min-height: 4.4rem;
  min-width: 4.4rem;
  gap: 0.8rem;
  line-height: 1;
}

.ui1d-btn-primary {
  background: linear-gradient(135deg, var(--ui1d-secondary), #FFD54F);
  color: var(--ui1d-dark);
  box-shadow: var(--ui1d-shadow);
}

.ui1d-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--ui1d-shadow-hover);
}

.ui1d-btn-secondary {
  background: var(--ui1d-light);
  color: var(--ui1d-primary);
  border: 2px solid var(--ui1d-primary);
}

.ui1d-btn-secondary:hover {
  background: var(--ui1d-primary);
  color: var(--ui1d-light);
}

.ui1d-btn-accent {
  background: linear-gradient(135deg, var(--ui1d-accent), #FFB3BA);
  color: var(--ui1d-dark);
}

.ui1d-btn-ghost {
  background: transparent;
  color: var(--ui1d-light);
  border: 2px solid var(--ui1d-light);
}

.ui1d-btn i {
  font-size: 1.6rem;
}

/* Loading state */
.ui1d-loading {
  position: relative;
  pointer-events: none;
}

.ui1d-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2rem;
  height: 2rem;
  margin: -1rem 0 0 -1rem;
  border: 2px solid var(--ui1d-light);
  border-top: 2px solid var(--ui1d-primary);
  border-radius: 50%;
  animation: ui1d-spin 1s linear infinite;
}

@keyframes ui1d-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Carousel Styles */
.ui1d-carousel-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--ui1d-radius-large);
  margin: 2rem 0;
  height: 20rem;
}

.ui1d-carousel {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  height: 100%;
}

.ui1d-carousel-slide {
  min-width: 100%;
  position: relative;
  cursor: pointer;
}

.ui1d-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--ui1d-radius-large);
}

.ui1d-carousel-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  padding: 2rem 1.6rem 1.6rem;
  color: var(--ui1d-light);
}

.ui1d-carousel-title {
  font-size: var(--ui1d-font-size-xl);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.ui1d-carousel-subtitle {
  font-size: var(--ui1d-font-size-sm);
  opacity: 0.9;
}

/* Carousel Dots */
.ui1d-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 1.6rem;
}

.ui1d-carousel-dot {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--ui1d-border);
  cursor: pointer;
  transition: var(--ui1d-transition);
}

.ui1d-carousel-dot.ui1d-active {
  background: var(--ui1d-primary);
  transform: scale(1.2);
}

/* Game Grid Styles */
.ui1d-games-section {
  margin: 3rem 0;
}

.ui1d-section-title {
  font-size: var(--ui1d-font-size-2xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: 2rem;
  color: var(--ui1d-primary);
}

.ui1d-games-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  margin: 2rem 0;
}

.ui1d-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: var(--ui1d-text-primary);
  padding: 1rem;
  border-radius: var(--ui1d-radius);
  background: var(--ui1d-light);
  box-shadow: var(--ui1d-shadow);
  transition: var(--ui1d-transition);
  min-height: 4.4rem;
}

.ui1d-game-item:hover,
.ui1d-hover {
  transform: translateY(-4px);
  box-shadow: var(--ui1d-shadow-hover);
}

.ui1d-game-img {
  width: 4.8rem;
  height: 4.8rem;
  border-radius: var(--ui1d-radius);
  object-fit: cover;
  margin-bottom: 0.8rem;
}

.ui1d-game-name {
  font-size: var(--ui1d-font-size-xs);
  font-weight: 600;
  text-align: center;
  line-height: 1.2;
  color: var(--ui1d-text-primary);
}

/* Card Styles */
.ui1d-card {
  background: var(--ui1d-light);
  border-radius: var(--ui1d-radius-large);
  padding: 2rem;
  margin: 2rem 0;
  box-shadow: var(--ui1d-shadow);
}

.ui1d-card-title {
  font-size: var(--ui1d-font-size-xl);
  font-weight: 700;
  margin-bottom: 1.6rem;
  color: var(--ui1d-primary);
}

.ui1d-card-content {
  color: var(--ui1d-text-secondary);
  line-height: 1.6;
}

/* Feature Grid */
.ui1d-features-grid {
  display: grid;
  gap: 1.6rem;
  margin: 2rem 0;
}

.ui1d-feature-card {
  background: var(--ui1d-light);
  padding: 2rem;
  border-radius: var(--ui1d-radius);
  box-shadow: var(--ui1d-shadow);
  text-align: center;
}

.ui1d-feature-icon {
  font-size: 4rem;
  color: var(--ui1d-primary);
  margin-bottom: 1.6rem;
}

.ui1d-feature-title {
  font-size: var(--ui1d-font-size-lg);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--ui1d-text-primary);
}

.ui1d-feature-desc {
  color: var(--ui1d-text-secondary);
  line-height: 1.6;
}

/* Statistics */
.ui1d-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
  margin: 2rem 0;
}

.ui1d-stat-card {
  background: linear-gradient(135deg, var(--ui1d-primary), #FF7043);
  color: var(--ui1d-light);
  padding: 2rem;
  border-radius: var(--ui1d-radius);
  text-align: center;
}

.ui1d-stat-number {
  font-size: var(--ui1d-font-size-3xl);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.ui1d-stat-label {
  font-size: var(--ui1d-font-size-sm);
  opacity: 0.9;
}

/* Bottom Navigation */
.ui1d-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ui1d-light);
  border-top: 1px solid var(--ui1d-border);
  display: flex;
  height: 6.4rem;
  z-index: 1000;
  box-shadow: 0 -2px 8px rgba(0,0,0,0.1);
}

.ui1d-bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--ui1d-text-light);
  transition: var(--ui1d-transition);
  padding: 0.8rem 0.4rem;
  min-height: 4.4rem;
}

.ui1d-bottom-nav-item.ui1d-active {
  color: var(--ui1d-primary);
  background: rgba(230, 81, 0, 0.1);
}

.ui1d-bottom-nav-item i {
  font-size: 2.4rem;
  margin-bottom: 0.4rem;
}

.ui1d-bottom-nav-item span {
  font-size: var(--ui1d-font-size-xs);
  font-weight: 500;
}

/* Footer */
.ui1d-footer {
  background: var(--ui1d-dark);
  color: var(--ui1d-light);
  padding: 3rem 0;
  margin-top: 4rem;
}

.ui1d-footer-content {
  text-align: center;
}

.ui1d-footer-title {
  font-size: var(--ui1d-font-size-xl);
  font-weight: 700;
  margin-bottom: 1.6rem;
  color: var(--ui1d-secondary);
}

.ui1d-footer-desc {
  color: #CCCCCC;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.ui1d-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.6rem;
  margin: 2rem 0;
}

.ui1d-footer-links a {
  color: var(--ui1d-accent);
  text-decoration: none;
  font-size: var(--ui1d-font-size-sm);
  transition: var(--ui1d-transition);
}

.ui1d-footer-links a:hover {
  color: var(--ui1d-secondary);
}

.ui1d-partners {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.2rem;
  margin: 2rem 0;
  opacity: 0.7;
}

.ui1d-partners img {
  width: 3.2rem;
  height: 3.2rem;
  object-fit: contain;
  filter: grayscale(100%) brightness(1.5);
  transition: var(--ui1d-transition);
}

.ui1d-partners img:hover {
  filter: grayscale(0%) brightness(1);
}

.ui1d-copyright {
  font-size: var(--ui1d-font-size-xs);
  color: #999999;
  margin-top: 2rem;
}

/* Animation Classes */
.ui1d-animate {
  opacity: 0;
  transform: translateY(3rem);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.ui1d-animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Utility Classes */
.ui1d-text-center { text-align: center; }
.ui1d-text-left { text-align: left; }
.ui1d-text-right { text-align: right; }
.ui1d-mb-1 { margin-bottom: 1rem; }
.ui1d-mb-2 { margin-bottom: 2rem; }
.ui1d-mt-1 { margin-top: 1rem; }
.ui1d-mt-2 { margin-top: 2rem; }
.ui1d-p-1 { padding: 1rem; }
.ui1d-p-2 { padding: 2rem; }

/* Responsive Design */
@media (max-width: 360px) {
  .ui1d-games-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .ui1d-game-img {
    width: 4rem;
    height: 4rem;
  }
  
  .ui1d-container {
    padding: 0 1.2rem;
  }
}

@media (min-width: 431px) {
  .ui1d-container {
    max-width: 430px;
  }
  
  .ui1d-games-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .ui1d-btn-primary {
    background: var(--ui1d-secondary);
    border: 2px solid var(--ui1d-dark);
  }
  
  .ui1d-game-item {
    border: 1px solid var(--ui1d-border);
  }
}

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