/**
 * Casino Game Online - Theme Stylesheet
 * Prefix: ui9b-
 * Colors: #1A1A2E (dark navy) | #DEB887 (burlywood) | #87CEFA (sky blue)
 *         #FFFACD (lemon) | #F4A460 (sandy brown) | #CED4DA (gray)
 */

/* === CSS Variables === */
:root {
  --ui9b-bg-dark: #1A1A2E;
  --ui9b-bg-card: #16213E;
  --ui9b-bg-section: #0F3460;
  --ui9b-accent: #DEB887;
  --ui9b-blue: #87CEFA;
  --ui9b-lemon: #FFFACD;
  --ui9b-sandy: #F4A460;
  --ui9b-gray: #CED4DA;
  --ui9b-text: #E8E8E8;
  --ui9b-text-muted: #A0A8B4;
  --ui9b-border: #2A3A5C;
  --ui9b-radius: 10px;
  --ui9b-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --ui9b-transition: all 0.3s ease;
}

/* === Reset & Base === */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--ui9b-bg-dark);
  color: var(--ui9b-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ui9b-accent); text-decoration: none; transition: var(--ui9b-transition); }
a:hover { color: var(--ui9b-blue); }
img { max-width: 100%; height: auto; display: block; }

/* === Header === */
.ui9b-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(135deg, var(--ui9b-bg-dark) 0%, var(--ui9b-bg-card) 100%);
  border-bottom: 1px solid var(--ui9b-accent);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.ui9b-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ui9b-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.ui9b-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--ui9b-accent), var(--ui9b-sandy));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--ui9b-bg-dark);
}
.ui9b-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.ui9b-btn {
  padding: 8px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--ui9b-transition);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.ui9b-btn-register {
  background: linear-gradient(135deg, var(--ui9b-accent), var(--ui9b-sandy));
  color: var(--ui9b-bg-dark);
}
.ui9b-btn-register:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(222, 184, 135, 0.4);
}
.ui9b-btn-login {
  background: transparent;
  color: var(--ui9b-accent);
  border: 1px solid var(--ui9b-accent);
}
.ui9b-btn-login:hover {
  background: var(--ui9b-accent);
  color: var(--ui9b-bg-dark);
}
.ui9b-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--ui9b-accent);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
}

/* === Mobile Menu === */
.ui9b-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: var(--ui9b-transition);
}
.ui9b-overlay-active {
  opacity: 1;
  visibility: visible;
}
.ui9b-mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: var(--ui9b-bg-card);
  z-index: 9999;
  transition: right 0.3s ease;
  overflow-y: auto;
  padding: 20px;
}
.ui9b-menu-active {
  right: 0;
}
.ui9b-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--ui9b-border);
}
.ui9b-menu-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ui9b-accent);
}
.ui9b-menu-close {
  background: none;
  border: none;
  color: var(--ui9b-gray);
  font-size: 22px;
  cursor: pointer;
}
.ui9b-menu-group-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ui9b-sandy);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 20px 0 10px;
}
.ui9b-menu-link {
  display: block;
  padding: 10px 12px;
  color: var(--ui9b-text);
  font-size: 14px;
  border-radius: 6px;
  transition: var(--ui9b-transition);
  margin-bottom: 2px;
}
.ui9b-menu-link:hover {
  background: rgba(222, 184, 135, 0.1);
  color: var(--ui9b-accent);
}

/* === Banner Slider === */
.ui9b-slider {
  position: relative;
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: 0 0 var(--ui9b-radius) var(--ui9b-radius);
  margin-top: 60px;
}
.ui9b-slides-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
}
.ui9b-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.6s ease;
  cursor: pointer;
}
.ui9b-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ui9b-slide-active {
  opacity: 1;
}
.ui9b-slider-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 5;
}
.ui9b-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: var(--ui9b-transition);
  border: none;
}
.ui9b-dot-active {
  background: var(--ui9b-accent);
  transform: scale(1.2);
}
.ui9b-slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--ui9b-transition);
}
.ui9b-slider-arrow:hover {
  background: var(--ui9b-accent);
  color: var(--ui9b-bg-dark);
}
.ui9b-arrow-left { left: 10px; }
.ui9b-arrow-right { right: 10px; }

/* === Main Content === */
.ui9b-main {
  max-width: 430px;
  margin: 0 auto;
  padding: 16px;
}
@media (max-width: 768px) {
  .ui9b-main { padding-bottom: 80px; }
}

/* === Section Styles === */
.ui9b-section {
  margin-bottom: 28px;
}
.ui9b-section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ui9b-accent);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--ui9b-border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.ui9b-section-title i {
  color: var(--ui9b-blue);
  font-size: 22px;
}

/* === Game Tabs === */
.ui9b-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 16px;
  scrollbar-width: none;
}
.ui9b-tabs::-webkit-scrollbar { display: none; }
.ui9b-tab-btn {
  padding: 8px 16px;
  border: 1px solid var(--ui9b-border);
  background: var(--ui9b-bg-card);
  color: var(--ui9b-text-muted);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--ui9b-transition);
}
.ui9b-tab-active {
  background: linear-gradient(135deg, var(--ui9b-accent), var(--ui9b-sandy));
  color: var(--ui9b-bg-dark);
  border-color: var(--ui9b-accent);
}

/* === Game Grid === */
.ui9b-game-panel {
  display: none;
}
.ui9b-panel-active {
  display: block;
}
.ui9b-game-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.ui9b-game-card {
  background: var(--ui9b-bg-card);
  border-radius: var(--ui9b-radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--ui9b-transition);
  border: 1px solid var(--ui9b-border);
}
.ui9b-game-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--ui9b-shadow);
  border-color: var(--ui9b-accent);
}
.ui9b-game-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}
.ui9b-game-card-title {
  padding: 6px 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ui9b-text);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* === Promo Cards === */
.ui9b-promo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.ui9b-promo-card {
  background: linear-gradient(135deg, var(--ui9b-bg-card), var(--ui9b-bg-section));
  border: 1px solid var(--ui9b-border);
  border-radius: var(--ui9b-radius);
  padding: 16px;
  cursor: pointer;
  transition: var(--ui9b-transition);
  text-align: center;
}
.ui9b-promo-card:hover {
  border-color: var(--ui9b-accent);
  transform: scale(1.02);
}
.ui9b-promo-icon {
  font-size: 32px;
  margin-bottom: 8px;
  display: block;
}
.ui9b-promo-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ui9b-accent);
  margin-bottom: 4px;
}
.ui9b-promo-desc {
  font-size: 12px;
  color: var(--ui9b-text-muted);
}

/* === Content Section === */
.ui9b-content-block {
  background: var(--ui9b-bg-card);
  border-radius: var(--ui9b-radius);
  padding: 20px;
  margin-bottom: 16px;
  border: 1px solid var(--ui9b-border);
  line-height: 1.8;
}
.ui9b-content-block h2 {
  font-size: 18px;
  color: var(--ui9b-accent);
  margin-bottom: 12px;
}
.ui9b-content-block h3 {
  font-size: 16px;
  color: var(--ui9b-blue);
  margin: 14px 0 8px;
}
.ui9b-content-block p {
  font-size: 14px;
  color: var(--ui9b-text);
  margin-bottom: 10px;
}
.ui9b-content-block ul {
  padding-left: 20px;
  margin-bottom: 10px;
}
.ui9b-content-block li {
  font-size: 14px;
  color: var(--ui9b-text);
  margin-bottom: 6px;
}
.ui9b-internal-link {
  color: var(--ui9b-blue);
  font-weight: 600;
  border-bottom: 1px dashed var(--ui9b-blue);
}

/* === Footer === */
.ui9b-footer {
  background: var(--ui9b-bg-card);
  border-top: 1px solid var(--ui9b-border);
  padding: 24px 16px;
  margin-top: 32px;
}
.ui9b-footer-inner {
  max-width: 430px;
  margin: 0 auto;
}
.ui9b-footer-partners {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--ui9b-border);
}
.ui9b-footer-partner {
  padding: 6px 12px;
  background: rgba(222, 184, 135, 0.1);
  border-radius: 4px;
  font-size: 12px;
  color: var(--ui9b-text-muted);
  font-weight: 600;
}
.ui9b-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  justify-content: center;
  margin-bottom: 16px;
}
.ui9b-footer-link {
  font-size: 13px;
  color: var(--ui9b-text-muted);
}
.ui9b-footer-link:hover { color: var(--ui9b-accent); }
.ui9b-footer-copy {
  text-align: center;
  font-size: 12px;
  color: var(--ui9b-text-muted);
  padding-top: 12px;
  border-top: 1px solid var(--ui9b-border);
}

/* === Bottom Navigation === */
.ui9b-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(180deg, var(--ui9b-bg-card), var(--ui9b-bg-dark));
  border-top: 1px solid var(--ui9b-accent);
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 60px;
  padding: 0 4px;
}
.ui9b-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 52px;
  background: none;
  border: none;
  color: var(--ui9b-gray);
  cursor: pointer;
  transition: var(--ui9b-transition);
  gap: 2px;
  padding: 4px;
  position: relative;
}
.ui9b-nav-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  width: 24px;
  height: 3px;
  border-radius: 2px;
  background: transparent;
  transition: var(--ui9b-transition);
}
.ui9b-nav-btn:hover,
.ui9b-nav-btn-active {
  color: var(--ui9b-accent);
}
.ui9b-nav-btn-active::after {
  background: var(--ui9b-accent);
}
.ui9b-nav-btn i,
.ui9b-nav-btn .material-icons {
  font-size: 22px;
}
.ui9b-nav-btn span {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
@media (min-width: 769px) {
  .ui9b-bottom-nav { display: none; }
}

/* === Desktop Nav === */
.ui9b-desktop-nav {
  display: none;
}
@media (min-width: 769px) {
  .ui9b-desktop-nav {
    display: flex;
    gap: 16px;
    align-items: center;
  }
  .ui9b-header {
    max-width: 100%;
  }
  .ui9b-main, .ui9b-footer-inner, .ui9b-slider {
    max-width: 900px;
  }
  .ui9b-game-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .ui9b-promo-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .ui9b-menu-btn { display: none !important; }
}

/* === Back to Top === */
.ui9b-back-top {
  position: fixed;
  bottom: 72px;
  right: 16px;
  width: 40px;
  height: 40px;
  background: var(--ui9b-accent);
  color: var(--ui9b-bg-dark);
  border: none;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--ui9b-transition);
  box-shadow: var(--ui9b-shadow);
}
.ui9b-back-top-visible {
  opacity: 1;
  visibility: visible;
}
@media (min-width: 769px) {
  .ui9b-back-top { bottom: 24px; }
}

/* === Utility === */
.ui9b-text-accent { color: var(--ui9b-accent); }
.ui9b-text-blue { color: var(--ui9b-blue); }
.ui9b-text-sandy { color: var(--ui9b-sandy); }
.ui9b-text-center { text-align: center; }
.ui9b-mt-16 { margin-top: 16px; }
.ui9b-mb-16 { margin-bottom: 16px; }