/**
 * 6777 Bet APK - Core CSS Stylesheet
 * All classes use ui2b- prefix for namespace isolation
 * Color Palette: #2E4057 | #EEEEEE | #FFEF94 | #00CED1 | #DAA520 | #FFA500
 * Mobile-first responsive design (max-width: 430px)
 */

:root {
  --ui2b-primary: #2E4057;
  --ui2b-bg: #2E4057;
  --ui2b-bg-light: #3a5270;
  --ui2b-bg-card: #1a2d42;
  --ui2b-text: #EEEEEE;
  --ui2b-text-muted: #b0bec5;
  --ui2b-accent-cyan: #00CED1;
  --ui2b-accent-gold: #DAA520;
  --ui2b-accent-orange: #FFA500;
  --ui2b-highlight: #FFEF94;
  --ui2b-border: #3a5270;
  --ui2b-radius: 8px;
  --ui2b-radius-lg: 12px;
  --ui2b-shadow: 0 2px 8px rgba(0,0,0,0.3);
  --ui2b-transition: all 0.3s ease;
}

/* Base reset */
*, *::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;
  background: var(--ui2b-bg);
  color: var(--ui2b-text);
  line-height: 1.5rem;
  font-size: 1.4rem;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ui2b-accent-cyan); text-decoration: none; }
a:hover { color: var(--ui2b-highlight); }
img { max-width: 100%; height: auto; display: block; }

/* Container */
.ui2b-container { max-width: 430px; margin: 0 auto; padding: 0 1rem; width: 100%; }
.ui2b-wrapper { padding: 0 1.2rem; }

/* Header */
.ui2b-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: linear-gradient(135deg, var(--ui2b-bg-card), var(--ui2b-primary));
  padding: 0.6rem 1rem; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 2px solid var(--ui2b-accent-gold);
  height: 5.2rem; box-shadow: var(--ui2b-shadow);
}
.ui2b-header-left { display: flex; align-items: center; gap: 0.8rem; }
.ui2b-header-logo { width: 2.8rem; height: 2.8rem; border-radius: 50%; }
.ui2b-header-name { color: var(--ui2b-highlight); font-size: 1.5rem; font-weight: 700; white-space: nowrap; }
.ui2b-header-right { display: flex; align-items: center; gap: 0.6rem; }
.ui2b-btn-register, .ui2b-btn-login {
  padding: 0.5rem 1.2rem; border-radius: var(--ui2b-radius); font-size: 1.2rem;
  font-weight: 600; border: none; cursor: pointer; transition: var(--ui2b-transition);
  min-height: 3.6rem;
}
.ui2b-btn-register {
  background: linear-gradient(135deg, var(--ui2b-accent-orange), #ff6b35);
  color: #fff;
}
.ui2b-btn-register:hover { transform: scale(1.05); box-shadow: 0 0 12px rgba(255,165,0,0.5); }
.ui2b-btn-login {
  background: transparent; color: var(--ui2b-accent-cyan);
  border: 2px solid var(--ui2b-accent-cyan);
}
.ui2b-btn-login:hover { background: rgba(0,206,209,0.1); }
.ui2b-menu-toggle {
  background: none; border: none; color: var(--ui2b-text); font-size: 2.2rem;
  cursor: pointer; padding: 0.4rem; min-width: 4.4rem; text-align: center;
}

/* Mobile Menu */
.ui2b-mobile-menu {
  position: fixed; top: 0; right: 0; width: 75%; max-width: 300px; height: 100vh;
  background: var(--ui2b-bg-card); z-index: 9999; transform: translateX(100%);
  transition: transform 0.3s ease; padding: 2rem 1.5rem; overflow-y: auto;
}
.ui2b-menu-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
  background: rgba(0,0,0,0.6); z-index: 9998; display: none;
}
.ui2b-menu-close { background: none; border: none; color: var(--ui2b-text); font-size: 2.4rem; cursor: pointer; position: absolute; top: 1rem; right: 1rem; }
.ui2b-menu-list { list-style: none; margin-top: 3rem; }
.ui2b-menu-list li { border-bottom: 1px solid var(--ui2b-border); }
.ui2b-menu-list a {
  display: block; padding: 1.2rem 0; color: var(--ui2b-text); font-size: 1.4rem;
  transition: var(--ui2b-transition);
}
.ui2b-menu-list a:hover { color: var(--ui2b-accent-cyan); padding-left: 0.5rem; }

/* Slider */
.ui2b-slider { position: relative; overflow: hidden; margin-top: 5.2rem; border-radius: 0 0 var(--ui2b-radius-lg) var(--ui2b-radius-lg); }
.ui2b-slide { display: none; cursor: pointer; }
.ui2b-slide img { width: 100%; height: auto; min-height: 16rem; object-fit: cover; }
.ui2b-slider-dots { position: absolute; bottom: 1rem; left: 50%; transform: translateX(-50%); display: flex; gap: 0.6rem; }
.ui2b-slider-dot {
  width: 0.8rem; height: 0.8rem; border-radius: 50%; background: rgba(255,255,255,0.4);
  cursor: pointer; transition: var(--ui2b-transition); border: none;
}
.ui2b-dot-active { background: var(--ui2b-accent-gold); transform: scale(1.3); }

/* Main Content */
.ui2b-main { padding-top: 5.2rem; padding-bottom: 1rem; }
@media (max-width: 768px) { .ui2b-main { padding-bottom: 8rem; } }

/* Section Title */
.ui2b-section-title {
  font-size: 1.8rem; font-weight: 700; color: var(--ui2b-highlight);
  padding: 1.5rem 0 0.8rem; border-bottom: 2px solid var(--ui2b-accent-gold);
  margin-bottom: 1rem; display: flex; align-items: center; gap: 0.6rem;
}
.ui2b-section-title i, .ui2b-section-title .material-icons { font-size: 2rem; color: var(--ui2b-accent-cyan); }

/* Game Grid */
.ui2b-game-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.8rem; padding: 0.5rem 0;
}
.ui2b-game-item { text-align: center; cursor: pointer; transition: var(--ui2b-transition); }
.ui2b-game-item:hover { transform: translateY(-2px); }
.ui2b-game-item img {
  width: 100%; aspect-ratio: 1; border-radius: var(--ui2b-radius);
  border: 2px solid var(--ui2b-border); object-fit: cover; margin-bottom: 0.4rem;
}
.ui2b-game-item:hover img { border-color: var(--ui2b-accent-cyan); }
.ui2b-game-name {
  font-size: 1.1rem; color: var(--ui2b-text-muted); overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}

/* Promo Button */
.ui2b-promo-btn {
  display: inline-block; background: linear-gradient(135deg, var(--ui2b-accent-orange), #ff6b35);
  color: #fff; padding: 1rem 2rem; border-radius: var(--ui2b-radius-lg); font-size: 1.4rem;
  font-weight: 700; cursor: pointer; transition: var(--ui2b-transition); border: none;
  text-align: center; min-height: 4.4rem;
}
.ui2b-promo-btn:hover { transform: scale(1.05); box-shadow: 0 0 16px rgba(255,165,0,0.5); }
.ui2b-promo-link {
  color: var(--ui2b-accent-cyan); font-weight: 600; cursor: pointer;
  text-decoration: underline; transition: var(--ui2b-transition);
}
.ui2b-promo-link:hover { color: var(--ui2b-highlight); }

/* Cards */
.ui2b-card {
  background: var(--ui2b-bg-card); border-radius: var(--ui2b-radius-lg);
  padding: 1.2rem; margin: 1rem 0; border: 1px solid var(--ui2b-border);
  box-shadow: var(--ui2b-shadow);
}
.ui2b-card-title { font-size: 1.6rem; font-weight: 700; color: var(--ui2b-highlight); margin-bottom: 0.8rem; }
.ui2b-card-text { color: var(--ui2b-text-muted); font-size: 1.3rem; line-height: 1.8rem; }

/* Content Paragraphs */
.ui2b-content { padding: 1rem 0; }
.ui2b-content p { margin-bottom: 1rem; color: var(--ui2b-text-muted); line-height: 1.8rem; font-size: 1.3rem; }
.ui2b-content h2 { font-size: 1.7rem; color: var(--ui2b-highlight); margin: 1.5rem 0 0.8rem; }
.ui2b-content h3 { font-size: 1.5rem; color: var(--ui2b-accent-cyan); margin: 1.2rem 0 0.6rem; }
.ui2b-content ul { padding-left: 1.5rem; margin-bottom: 1rem; }
.ui2b-content li { color: var(--ui2b-text-muted); margin-bottom: 0.5rem; font-size: 1.3rem; line-height: 1.7rem; }

/* Footer */
.ui2b-footer {
  background: var(--ui2b-bg-card); padding: 2rem 1rem 1rem; margin-top: 2rem;
  border-top: 2px solid var(--ui2b-accent-gold);
}
.ui2b-footer-brand { text-align: center; margin-bottom: 1.5rem; }
.ui2b-footer-brand p { color: var(--ui2b-text-muted); font-size: 1.2rem; line-height: 1.6rem; }
.ui2b-footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; margin: 1rem 0; }
.ui2b-footer-link {
  background: var(--ui2b-bg); color: var(--ui2b-text); padding: 0.5rem 1rem;
  border-radius: var(--ui2b-radius); font-size: 1.1rem; border: 1px solid var(--ui2b-border);
  transition: var(--ui2b-transition);
}
.ui2b-footer-link:hover { border-color: var(--ui2b-accent-cyan); color: var(--ui2b-accent-cyan); }
.ui2b-footer-copy { text-align: center; color: var(--ui2b-text-muted); font-size: 1.1rem; margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--ui2b-border); }

/* Bottom Navigation */
.ui2b-bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000;
  background: linear-gradient(180deg, var(--ui2b-bg-card), #0d1b2a);
  display: flex; justify-content: space-around; align-items: center;
  height: 6rem; border-top: 2px solid var(--ui2b-accent-gold);
  box-shadow: 0 -2px 10px rgba(0,0,0,0.4);
}
@media (min-width: 769px) { .ui2b-bottom-nav { display: none; } }
.ui2b-bottom-nav-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-width: 6rem; min-height: 5rem; background: none; border: none; cursor: pointer;
  color: var(--ui2b-text-muted); transition: var(--ui2b-transition); padding: 0.3rem;
}
.ui2b-bottom-nav-btn i, .ui2b-bottom-nav-btn .material-icons,
.ui2b-bottom-nav-btn ion-icon, .ui2b-bottom-nav-btn bi {
  font-size: 2.4rem; margin-bottom: 0.2rem;
}
.ui2b-bottom-nav-btn span { font-size: 1rem; }
.ui2b-bottom-nav-btn:hover, .ui2b-bottom-nav-btn.ui2b-nav-active {
  color: var(--ui2b-accent-cyan); transform: scale(1.05);
}
.ui2b-bottom-nav-btn.ui2b-nav-active i,
.ui2b-bottom-nav-btn.ui2b-nav-active .material-icons {
  color: var(--ui2b-accent-gold);
}

/* Highlight tag */
.ui2b-tag {
  display: inline-block; background: var(--ui2b-accent-gold); color: var(--ui2b-bg);
  padding: 0.2rem 0.6rem; border-radius: 4px; font-size: 1rem; font-weight: 600;
}

/* Responsive helpers */
@media (max-width: 768px) {
  .ui2b-game-grid { grid-template-columns: repeat(4, 1fr); gap: 0.6rem; }
  .ui2b-container { padding: 0 0.8rem; }
}
@media (min-width: 769px) {
  .ui2b-container { max-width: 430px; }
}