/**
 * 639club54.click - Core Stylesheet
 * All classes use ui50- prefix for namespace isolation
 * Color palette: #333333, #5D5D5D, #00CED1, #AFEEEE, #40E0D0, #F5F5F5
 */

/* CSS Variables */
:root {
  --ui50-primary: #00CED1;
  --ui50-secondary: #40E0D0;
  --ui50-accent: #AFEEEE;
  --ui50-bg: #333333;
  --ui50-bg-dark: #1a1a1a;
  --ui50-bg-card: #3d3d3d;
  --ui50-text: #F5F5F5;
  --ui50-text-muted: #b0b0b0;
  --ui50-border: #5D5D5D;
  --ui50-danger: #ff4757;
  --ui50-success: #2ed573;
  --ui50-warning: #ffa502;
  --ui50-radius: 8px;
  --ui50-radius-lg: 12px;
  --ui50-shadow: 0 2px 12px rgba(0,0,0,0.3);
  --ui50-header-h: 56px;
  --ui50-bottom-h: 60px;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 62.5%; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 1.4rem;
  line-height: 1.5rem;
  color: var(--ui50-text);
  background: var(--ui50-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--ui50-primary); text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* Container */
.ui50-container {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.2rem;
}

/* Header */
.ui50-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--ui50-header-h);
  background: var(--ui50-bg-dark);
  border-bottom: 1px solid var(--ui50-border);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.2rem;
}
.ui50-header-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.ui50-header-logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}
.ui50-header-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ui50-primary);
  letter-spacing: 0.5px;
}
.ui50-header-actions {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}
.ui50-btn-register {
  background: var(--ui50-primary);
  color: var(--ui50-bg-dark);
  font-size: 1.2rem;
  font-weight: 700;
  padding: 0.5rem 1.2rem;
  border: none;
  border-radius: var(--ui50-radius);
  cursor: pointer;
  transition: all 0.2s;
}
.ui50-btn-register:hover { background: var(--ui50-secondary); transform: scale(1.05); }
.ui50-btn-login {
  background: transparent;
  color: var(--ui50-primary);
  font-size: 1.2rem;
  font-weight: 600;
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--ui50-primary);
  border-radius: var(--ui50-radius);
  cursor: pointer;
  transition: all 0.2s;
}
.ui50-btn-login:hover { background: rgba(0,206,209,0.1); }
.ui50-menu-btn {
  background: none;
  border: none;
  color: var(--ui50-text);
  font-size: 2rem;
  cursor: pointer;
  padding: 0.4rem;
  display: flex;
  align-items: center;
}

/* Mobile Menu */
.ui50-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.ui50-overlay-active { opacity: 1; pointer-events: auto; }
.ui50-mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: var(--ui50-bg-dark);
  z-index: 9999;
  transition: right 0.3s ease;
  padding: 2rem 1.6rem;
  overflow-y: auto;
}
.ui50-menu-active { right: 0; }
.ui50-menu-close {
  background: none;
  border: none;
  color: var(--ui50-text);
  font-size: 2.4rem;
  cursor: pointer;
  position: absolute;
  top: 1rem;
  right: 1.2rem;
}
.ui50-menu-link {
  display: block;
  padding: 1rem 0;
  color: var(--ui50-text);
  font-size: 1.5rem;
  border-bottom: 1px solid var(--ui50-border);
  transition: color 0.2s;
}
.ui50-menu-link:hover { color: var(--ui50-primary); }

/* Carousel */
.ui50-carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--ui50-radius-lg);
  margin-top: calc(var(--ui50-header-h) + 1rem);
}
.ui50-carousel-track {
  display: flex;
  transition: transform 0.5s ease;
}
.ui50-carousel-slide {
  min-width: 100%;
  cursor: pointer;
}
.ui50-carousel-slide img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.ui50-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 0;
}
.ui50-carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ui50-border);
  border: none;
  cursor: pointer;
  transition: background 0.3s;
}
.ui50-dot-active { background: var(--ui50-primary); width: 20px; border-radius: 4px; }

/* Section */
.ui50-section {
  padding: 2rem 0;
}
.ui50-section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--ui50-primary);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.ui50-section-title i { font-size: 2rem; }

/* Game Grid */
.ui50-game-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.ui50-game-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: transform 0.2s;
}
.ui50-game-card:hover { transform: translateY(-2px); }
.ui50-game-card:active { transform: scale(0.95); }
.ui50-game-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--ui50-radius);
  object-fit: cover;
  margin-bottom: 0.4rem;
  border: 2px solid var(--ui50-border);
}
.ui50-game-name {
  font-size: 1rem;
  color: var(--ui50-text-muted);
  text-align: center;
  line-height: 1.2rem;
  max-width: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Category Tabs */
.ui50-tabs {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  padding: 0.6rem 0;
  margin-bottom: 1rem;
  -webkit-overflow-scrolling: touch;
}
.ui50-tabs::-webkit-scrollbar { display: none; }
.ui50-tab-btn {
  padding: 0.5rem 1.2rem;
  background: var(--ui50-bg-card);
  color: var(--ui50-text-muted);
  border: 1px solid var(--ui50-border);
  border-radius: 20px;
  font-size: 1.2rem;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.2s;
}
.ui50-tab-btn:hover { color: var(--ui50-primary); border-color: var(--ui50-primary); }
.ui50-tab-active {
  background: var(--ui50-primary);
  color: var(--ui50-bg-dark);
  border-color: var(--ui50-primary);
  font-weight: 600;
}

/* Content Cards */
.ui50-card {
  background: var(--ui50-bg-card);
  border-radius: var(--ui50-radius-lg);
  padding: 1.6rem;
  margin-bottom: 1.2rem;
  border: 1px solid var(--ui50-border);
}
.ui50-card-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ui50-accent);
  margin-bottom: 1rem;
}
.ui50-card-text {
  font-size: 1.3rem;
  line-height: 2rem;
  color: var(--ui50-text-muted);
}

/* Promo Link */
.ui50-promo-link {
  color: var(--ui50-primary);
  font-weight: 700;
  cursor: pointer;
  border-bottom: 1px dashed var(--ui50-primary);
  transition: color 0.2s;
}
.ui50-promo-link:hover { color: var(--ui50-secondary); }

/* CTA Buttons */
.ui50-cta {
  display: block;
  width: 100%;
  padding: 1.4rem;
  background: linear-gradient(135deg, var(--ui50-primary), var(--ui50-secondary));
  color: var(--ui50-bg-dark);
  font-size: 1.6rem;
  font-weight: 700;
  text-align: center;
  border: none;
  border-radius: var(--ui50-radius-lg);
  cursor: pointer;
  transition: all 0.3s;
  margin: 1.6rem 0;
}
.ui50-cta:hover { transform: scale(1.02); box-shadow: 0 4px 20px rgba(0,206,209,0.4); }

/* Testimonial */
.ui50-testimonial {
  background: var(--ui50-bg-card);
  border-radius: var(--ui50-radius-lg);
  padding: 1.4rem;
  margin-bottom: 1rem;
  border-left: 3px solid var(--ui50-primary);
}
.ui50-testimonial-name {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--ui50-primary);
  margin-bottom: 0.4rem;
}
.ui50-testimonial-text {
  font-size: 1.2rem;
  color: var(--ui50-text-muted);
  line-height: 1.8rem;
}

/* Winner Display */
.ui50-winner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(93,93,93,0.3);
}
.ui50-winner-name {
  font-size: 1.2rem;
  color: var(--ui50-text);
  flex: 1;
}
.ui50-winner-amount {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ui50-warning);
}

/* Payment Row */
.ui50-payment-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  padding: 1rem 0;
}
.ui50-payment-item {
  background: var(--ui50-bg-card);
  border: 1px solid var(--ui50-border);
  border-radius: var(--ui50-radius);
  padding: 0.8rem 1.4rem;
  font-size: 1.2rem;
  color: var(--ui50-text);
}

/* Footer */
.ui50-footer {
  background: var(--ui50-bg-dark);
  padding: 2rem 1.2rem 8rem;
  border-top: 1px solid var(--ui50-border);
  margin-top: 2rem;
}
.ui50-footer-brand {
  font-size: 1.3rem;
  color: var(--ui50-text-muted);
  line-height: 2rem;
  margin-bottom: 1.6rem;
}
.ui50-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.4rem;
}
.ui50-footer-link {
  color: var(--ui50-primary);
  font-size: 1.2rem;
  padding: 0.4rem 0;
  cursor: pointer;
  transition: color 0.2s;
}
.ui50-footer-link:hover { color: var(--ui50-secondary); }
.ui50-footer-copy {
  font-size: 1.1rem;
  color: var(--ui50-border);
  padding-top: 1rem;
  border-top: 1px solid var(--ui50-border);
}

/* Bottom Navigation */
.ui50-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--ui50-bottom-h);
  background: var(--ui50-bg-dark);
  border-top: 1px solid var(--ui50-border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  padding: 0 0.4rem;
}
.ui50-bottom-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  min-height: 56px;
  background: none;
  border: none;
  color: var(--ui50-text-muted);
  cursor: pointer;
  transition: all 0.2s;
  padding: 0.4rem;
  border-radius: var(--ui50-radius);
}
.ui50-bottom-btn:hover { color: var(--ui50-primary); }
.ui50-bottom-btn:active,
.ui50-btn-pressed { transform: scale(0.9); }
.ui50-bottom-icon { font-size: 2.2rem; margin-bottom: 0.2rem; }
.ui50-bottom-label { font-size: 1rem; }
.ui50-bottom-active { color: var(--ui50-primary); }
.ui50-bottom-active .ui50-bottom-label { font-weight: 600; }

/* Back to Top */
.ui50-back-top {
  position: fixed;
  bottom: 7rem;
  right: 1.2rem;
  width: 40px;
  height: 40px;
  background: var(--ui50-primary);
  color: var(--ui50-bg-dark);
  border: none;
  border-radius: 50%;
  font-size: 1.8rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ui50-back-top:hover { transform: scale(1.1); }

/* Highlight Banner */
.ui50-highlight {
  background: linear-gradient(135deg, rgba(0,206,209,0.15), rgba(64,224,208,0.1));
  border: 1px solid var(--ui50-primary);
  border-radius: var(--ui50-radius-lg);
  padding: 1.4rem;
  margin-bottom: 1.2rem;
  text-align: center;
}
.ui50-highlight-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ui50-primary);
  margin-bottom: 0.6rem;
}
.ui50-highlight-text {
  font-size: 1.2rem;
  color: var(--ui50-text-muted);
  line-height: 1.8rem;
}

/* Achievement Badge */
.ui50-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(0,206,209,0.15);
  border: 1px solid var(--ui50-primary);
  border-radius: 20px;
  padding: 0.3rem 0.8rem;
  font-size: 1.1rem;
  color: var(--ui50-primary);
}

/* Responsive */
@media (min-width: 769px) {
  .ui50-bottom-nav { display: none; }
  .ui50-container { max-width: 430px; }
}
@media (max-width: 768px) {
  main { padding-bottom: calc(var(--ui50-bottom-h) + 1rem); }
}