/* 639club Core Stylesheet - ui4b- prefix */
/* Dark theme mobile-first design */

:root {
  --ui4b-primary: #36454F;
  --ui4b-bg: #2F2F2F;
  --ui4b-text: #F0F0F0;
  --ui4b-accent: #778899;
  --ui4b-dark: #2D2D2D;
  --ui4b-hover: #456;
  --ui4b-gold: #FFD700;
  --ui4b-green: #4CAF50;
  --ui4b-red: #E74C3C;
  --ui4b-radius: 0.8rem;
  --ui4b-shadow: 0 0.2rem 1rem rgba(0,0,0,0.3);
  font-size: 62.5%;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--ui4b-bg);
  color: var(--ui4b-text);
  line-height: 1.5rem;
  font-size: 1.4rem;
  max-width: 430px;
  margin: 0 auto;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--ui4b-accent); text-decoration: none; }
a:hover { color: var(--ui4b-gold); }
img { max-width: 100%; height: auto; display: block; }

/* Header */
.ui4b-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  max-width: 430px;
  margin: 0 auto;
  height: 5.2rem;
  background: var(--ui4b-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  z-index: 1000;
  border-bottom: 0.1rem solid var(--ui4b-primary);
}

.ui4b-logo-area {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.ui4b-logo-area img { width: 2.8rem; height: 2.8rem; border-radius: 0.4rem; }

.ui4b-site-name {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ui4b-text);
  letter-spacing: 0.05rem;
}

.ui4b-header-actions { display: flex; align-items: center; gap: 0.6rem; }

.ui4b-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: var(--ui4b-radius);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 3.6rem;
  min-width: 4.4rem;
}

.ui4b-btn-register {
  background: linear-gradient(135deg, #FFD700, #FFA500);
  color: #1a1a1a;
}

.ui4b-btn-register:hover { transform: scale(1.05); box-shadow: 0 0.3rem 0.8rem rgba(255,215,0,0.4); }

.ui4b-btn-login {
  background: var(--ui4b-primary);
  color: var(--ui4b-text);
  border: 0.1rem solid var(--ui4b-accent);
}

.ui4b-btn-login:hover { background: var(--ui4b-accent); color: var(--ui4b-dark); }

.ui4b-hamburger {
  background: none;
  border: none;
  color: var(--ui4b-text);
  font-size: 2rem;
  cursor: pointer;
  padding: 0.4rem;
  min-width: 4.4rem;
  min-height: 4.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile Menu Overlay */
.ui4b-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.ui4b-overlay-active { opacity: 1; visibility: visible; }

/* Mobile Slide-in Menu */
.ui4b-mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: var(--ui4b-dark);
  z-index: 9999;
  transition: right 0.3s ease;
  padding: 6rem 0 2rem;
  overflow-y: auto;
}

.ui4b-menu-active { right: 0; }

.ui4b-menu-close {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: none;
  border: none;
  color: var(--ui4b-text);
  font-size: 2rem;
  cursor: pointer;
  width: 4.4rem;
  height: 4.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ui4b-menu-links { list-style: none; }

.ui4b-menu-links li a {
  display: flex;
  align-items: center;
  padding: 1.2rem 2rem;
  color: var(--ui4b-text);
  font-size: 1.4rem;
  border-bottom: 0.1rem solid var(--ui4b-primary);
  transition: background 0.2s;
}

.ui4b-menu-links li a:hover { background: var(--ui4b-primary); color: var(--ui4b-gold); }

.ui4b-menu-links li a i { margin-right: 1rem; font-size: 1.6rem; }

/* Main Content */
.ui4b-main {
  padding-top: 5.2rem;
  min-height: 100vh;
}

/* Carousel */
.ui4b-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 430/200;
}

.ui4b-carousel-slide {
  display: none;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.ui4b-carousel-slide img { width: 100%; height: 100%; object-fit: cover; }

.ui4b-slide-active { display: block; }

.ui4b-carousel-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.6rem;
}

.ui4b-carousel-dot {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: background 0.3s;
  border: none;
}

.ui4b-dot-active { background: var(--ui4b-gold); }

/* Sections */
.ui4b-section {
  padding: 2rem 1rem;
}

.ui4b-section-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--ui4b-text);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.ui4b-section-title i { color: var(--ui4b-gold); font-size: 1.6rem; }

/* Game Grid */
.ui4b-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}

.ui4b-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: transform 0.2s;
}

.ui4b-game-item:hover { transform: scale(1.05); }

.ui4b-game-item img {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--ui4b-radius);
  border: 0.1rem solid var(--ui4b-primary);
  object-fit: cover;
}

.ui4b-game-name {
  font-size: 1rem;
  color: var(--ui4b-text);
  text-align: center;
  margin-top: 0.3rem;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

/* Content Blocks */
.ui4b-content-block {
  background: var(--ui4b-dark);
  border-radius: var(--ui4b-radius);
  padding: 1.6rem;
  margin-bottom: 1.2rem;
  border: 0.1rem solid var(--ui4b-primary);
}

.ui4b-content-block h2 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
  color: var(--ui4b-gold);
}

.ui4b-content-block h3 {
  font-size: 1.4rem;
  margin: 1rem 0 0.6rem;
  color: var(--ui4b-text);
}

.ui4b-content-block p {
  font-size: 1.3rem;
  line-height: 1.8;
  margin-bottom: 0.8rem;
  color: var(--ui4b-accent);
}

.ui4b-content-block ul {
  padding-left: 1.6rem;
  margin-bottom: 0.8rem;
}

.ui4b-content-block li {
  font-size: 1.3rem;
  line-height: 1.8;
  color: var(--ui4b-accent);
  margin-bottom: 0.4rem;
}

/* CTA Buttons */
.ui4b-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, #FFD700, #FFA500);
  color: #1a1a1a;
  font-size: 1.4rem;
  font-weight: 700;
  border: none;
  border-radius: var(--ui4b-radius);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  min-height: 4.4rem;
}

.ui4b-cta:hover { transform: scale(1.05); box-shadow: 0 0.4rem 1.2rem rgba(255,215,0,0.5); }

.ui4b-cta-secondary {
  background: var(--ui4b-primary);
  color: var(--ui4b-text);
}

.ui4b-cta-secondary:hover { background: var(--ui4b-accent); color: var(--ui4b-dark); }

/* FAQ Section */
.ui4b-faq-item {
  background: var(--ui4b-dark);
  border-radius: var(--ui4b-radius);
  padding: 1.2rem;
  margin-bottom: 0.8rem;
  border: 0.1rem solid var(--ui4b-primary);
}

.ui4b-faq-q {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--ui4b-gold);
  margin-bottom: 0.6rem;
}

.ui4b-faq-a {
  font-size: 1.2rem;
  color: var(--ui4b-accent);
  line-height: 1.6;
}

/* Footer */
.ui4b-footer {
  background: var(--ui4b-dark);
  padding: 2rem 1rem;
  border-top: 0.1rem solid var(--ui4b-primary);
}

.ui4b-footer-intro {
  font-size: 1.2rem;
  color: var(--ui4b-accent);
  line-height: 1.6;
  margin-bottom: 1.4rem;
}

.ui4b-footer-buttons {
  display: flex;
  gap: 0.8rem;
  margin-bottom: 1.4rem;
  flex-wrap: wrap;
  justify-content: center;
}

.ui4b-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  margin-bottom: 1.2rem;
}

.ui4b-footer-links a {
  font-size: 1.2rem;
  color: var(--ui4b-accent);
  padding: 0.4rem 0.6rem;
}

.ui4b-footer-links a:hover { color: var(--ui4b-gold); }

.ui4b-copyright {
  text-align: center;
  font-size: 1.1rem;
  color: #666;
  margin-top: 1rem;
}

/* Bottom Navigation */
.ui4b-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 430px;
  margin: 0 auto;
  height: 60px;
  background: var(--ui4b-dark);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  border-top: 0.1rem solid var(--ui4b-primary);
  box-shadow: 0 -0.2rem 0.8rem rgba(0,0,0,0.4);
}

.ui4b-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--ui4b-accent);
  cursor: pointer;
  min-width: 60px;
  min-height: 56px;
  padding: 0.4rem;
  transition: all 0.2s;
  text-decoration: none;
  position: relative;
}

.ui4b-nav-btn:hover, .ui4b-nav-btn:focus {
  color: var(--ui4b-gold);
  transform: scale(1.1);
}

.ui4b-nav-btn.active { color: var(--ui4b-gold); }

.ui4b-nav-btn .ui4b-nav-icon { font-size: 22px; margin-bottom: 0.2rem; }
.ui4b-nav-btn .ui4b-nav-icon.material-icons { font-size: 24px; }

.ui4b-nav-btn .ui4b-nav-label {
  font-size: 10px;
  line-height: 1;
  white-space: nowrap;
}

/* Lazy Load */
.ui4b-lazy {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.ui4b-lazy[src] { opacity: 1; }

/* Utility Classes */
.ui4b-text-center { text-align: center; }
.ui4b-mt-1 { margin-top: 1rem; }
.ui4b-mt-2 { margin-top: 2rem; }
.ui4b-mb-1 { margin-bottom: 1rem; }
.ui4b-mb-2 { margin-bottom: 2rem; }
.ui4b-p-1 { padding: 1rem; }
.ui4b-p-2 { padding: 2rem; }
.ui4b-hidden { display: none; }
.ui4b-flex-center { display: flex; align-items: center; justify-content: center; }
.ui4b-flex-wrap { display: flex; flex-wrap: wrap; gap: 0.6rem; }

.ui4b-affiliate-text {
  color: var(--ui4b-gold);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}

.ui4b-affiliate-text:hover { color: #FFF; }

/* Winner Showcase */
.ui4b-winner-card {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem;
  background: var(--ui4b-dark);
  border-radius: var(--ui4b-radius);
  margin-bottom: 0.6rem;
  border: 0.1rem solid var(--ui4b-primary);
}

.ui4b-winner-card img { width: 3.6rem; height: 3.6rem; border-radius: 50%; }
.ui4b-winner-info { flex: 1; }
.ui4b-winner-name { font-size: 1.2rem; font-weight: 600; color: var(--ui4b-text); }
.ui4b-winner-amount { font-size: 1.1rem; color: var(--ui4b-gold); }

/* RTP Table */
.ui4b-rtp-table { width: 100%; border-collapse: collapse; font-size: 1.2rem; }
.ui4b-rtp-table th { background: var(--ui4b-primary); color: var(--ui4b-text); padding: 0.6rem; text-align: left; }
.ui4b-rtp-table td { padding: 0.5rem 0.6rem; border-bottom: 0.1rem solid var(--ui4b-primary); color: var(--ui4b-accent); }

/* Testimonial */
.ui4b-testimonial {
  background: var(--ui4b-dark);
  border-radius: var(--ui4b-radius);
  padding: 1.2rem;
  margin-bottom: 0.8rem;
  border-left: 0.3rem solid var(--ui4b-gold);
}

.ui4b-testimonial p { font-size: 1.2rem; color: var(--ui4b-accent); line-height: 1.6; font-style: italic; }
.ui4b-testimonial-author { font-size: 1.1rem; color: var(--ui4b-gold); margin-top: 0.6rem; font-weight: 600; }

/* Payment Methods */
.ui4b-payment-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
}

.ui4b-payment-item {
  background: var(--ui4b-dark);
  border: 0.1rem solid var(--ui4b-primary);
  border-radius: var(--ui4b-radius);
  padding: 0.6rem 1.2rem;
  font-size: 1.2rem;
  color: var(--ui4b-accent);
}

/* Responsive: mobile bottom padding */
@media (max-width: 768px) {
  .ui4b-main { padding-bottom: 80px; }
}

/* Hide bottom nav on desktop */
@media (min-width: 769px) {
  .ui4b-bottom-nav { display: none; }
}

/* Desktop view adjustments */
@media (min-width: 431px) and (max-width: 768px) {
  body { max-width: 430px; }
}