/**
 * ab999 Layout Stylesheet
 * All classes use ui87- prefix for namespace isolation
 * Color palette: #2C3E50 | #999999 | #FFB6C1 | #4682B4 | #FF7F50 | #00CED1
 * Mobile-first design (max-width: 430px viewport)
 */

/* CSS Variables */
:root {
  --ui87-primary: #2C3E50;
  --ui87-secondary: #4682B4;
  --ui87-accent: #FF7F50;
  --ui87-highlight: #00CED1;
  --ui87-light-pink: #FFB6C1;
  --ui87-gray: #999999;
  --ui87-bg: #1a2332;
  --ui87-bg-dark: #0f1720;
  --ui87-bg-card: #243447;
  --ui87-bg-card-hover: #2d4258;
  --ui87-text: #f0f4f8;
  --ui87-text-muted: #b0bec5;
  --ui87-border: #37474f;
  --ui87-radius: 8px;
  --ui87-radius-sm: 4px;
  --ui87-radius-lg: 12px;
  --ui87-shadow: 0 2px 12px rgba(0,0,0,0.3);
  --ui87-header-h: 56px;
  --ui87-bottom-h: 60px;
  font-size: 62.5%;
}

/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', 'Noto Sans Bengali', Tahoma, sans-serif;
  background: var(--ui87-bg);
  color: var(--ui87-text);
  font-size: 1.4rem;
  line-height: 1.5rem;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--ui87-highlight); text-decoration: none; }
a:hover { color: var(--ui87-accent); }
img { max-width: 100%; height: auto; display: block; }

/* Container */
.ui87-container {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.2rem;
}
.ui87-wrapper {
  width: 100%;
  overflow: hidden;
}

/* Header */
.ui87-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--ui87-header-h);
  background: var(--ui87-bg-dark);
  border-bottom: 1px solid var(--ui87-border);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
}
.ui87-header-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.ui87-header-logo img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
}
.ui87-header-logo span {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ui87-highlight);
}
.ui87-header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.ui87-btn-register {
  background: var(--ui87-accent);
  color: #fff;
  border: none;
  padding: 0.5rem 1.2rem;
  border-radius: var(--ui87-radius);
  font-size: 1.3rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.ui87-btn-register:hover {
  background: #e06840;
  transform: scale(1.03);
}
.ui87-btn-login {
  background: transparent;
  color: var(--ui87-highlight);
  border: 1px solid var(--ui87-highlight);
  padding: 0.5rem 1.2rem;
  border-radius: var(--ui87-radius);
  font-size: 1.3rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.ui87-btn-login:hover {
  background: var(--ui87-highlight);
  color: var(--ui87-bg-dark);
}
.ui87-menu-btn {
  background: none;
  border: none;
  color: var(--ui87-text);
  font-size: 2.2rem;
  cursor: pointer;
  padding: 0.4rem;
  line-height: 1;
}

/* Mobile Menu Overlay */
.ui87-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9998;
}
.ui87-overlay-active { display: block; }

/* Mobile Slide Menu */
.ui87-mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: var(--ui87-bg-dark);
  z-index: 9999;
  transition: right 0.3s ease;
  overflow-y: auto;
  padding: 2rem 1.5rem;
}
.ui87-menu-active { right: 0; }
.ui87-mobile-menu .ui87-menu-close {
  background: none;
  border: none;
  color: var(--ui87-text);
  font-size: 2.4rem;
  cursor: pointer;
  position: absolute;
  top: 1rem;
  right: 1rem;
}
.ui87-mobile-menu h3 {
  color: var(--ui87-highlight);
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--ui87-border);
}
.ui87-mobile-menu ul {
  list-style: none;
}
.ui87-mobile-menu li {
  margin-bottom: 0.2rem;
}
.ui87-mobile-menu a {
  display: block;
  padding: 0.9rem 1rem;
  color: var(--ui87-text);
  font-size: 1.4rem;
  border-radius: var(--ui87-radius-sm);
  transition: all 0.2s;
}
.ui87-mobile-menu a:hover {
  background: var(--ui87-bg-card);
  color: var(--ui87-highlight);
}

/* Main Content */
.ui87-main {
  margin-top: var(--ui87-header-h);
  min-height: calc(100vh - var(--ui87-header-h));
}
@media (max-width: 768px) {
  .ui87-main { padding-bottom: 80px; }
}

/* Carousel / Slider */
.ui87-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 0 0 var(--ui87-radius-lg) var(--ui87-radius-lg);
}
.ui87-slide {
  display: none;
  width: 100%;
  cursor: pointer;
}
.ui87-slide img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.ui87-slide-dots {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
}
.ui87-slide-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.ui87-dot-active {
  background: var(--ui87-accent);
  width: 20px;
  border-radius: 4px;
}

/* Section Titles */
.ui87-section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--ui87-text);
  margin: 1.8rem 0 1rem;
  padding-left: 1rem;
  border-left: 3px solid var(--ui87-accent);
}
.ui87-section-title span {
  color: var(--ui87-highlight);
}

/* Game Grid */
.ui87-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
  padding: 0.5rem 0;
}
.ui87-game-item {
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s;
  border-radius: var(--ui87-radius);
  padding: 0.4rem;
}
.ui87-game-item:hover {
  transform: scale(1.05);
  background: var(--ui87-bg-card);
}
.ui87-game-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--ui87-radius);
  margin-bottom: 0.3rem;
}
.ui87-game-item p {
  font-size: 1.1rem;
  color: var(--ui87-text-muted);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Category Label */
.ui87-cat-label {
  display: inline-block;
  background: linear-gradient(135deg, var(--ui87-secondary), var(--ui87-highlight));
  color: #fff;
  padding: 0.4rem 1.2rem;
  border-radius: 20px;
  font-size: 1.3rem;
  font-weight: 600;
  margin: 1.2rem 0 0.8rem;
}

/* Cards */
.ui87-card {
  background: var(--ui87-bg-card);
  border-radius: var(--ui87-radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.2rem;
  border: 1px solid var(--ui87-border);
}
.ui87-card h2 {
  font-size: 1.6rem;
  color: var(--ui87-highlight);
  margin-bottom: 0.8rem;
}
.ui87-card h3 {
  font-size: 1.4rem;
  color: var(--ui87-accent);
  margin-bottom: 0.6rem;
}
.ui87-card p {
  color: var(--ui87-text-muted);
  line-height: 2rem;
  margin-bottom: 0.6rem;
}
.ui87-card ul {
  padding-left: 1.6rem;
  margin-bottom: 0.8rem;
}
.ui87-card li {
  color: var(--ui87-text-muted);
  line-height: 2rem;
}

/* Promo CTA */
.ui87-cta {
  display: inline-block;
  background: linear-gradient(135deg, var(--ui87-accent), #ff9562);
  color: #fff;
  padding: 0.8rem 2rem;
  border-radius: 30px;
  font-size: 1.4rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.3s;
  text-align: center;
}
.ui87-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255,127,80,0.4);
}
.ui87-cta-secondary {
  background: linear-gradient(135deg, var(--ui87-secondary), var(--ui87-highlight));
}
.ui87-cta-link {
  color: var(--ui87-accent);
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
}

/* Footer */
.ui87-footer {
  background: var(--ui87-bg-dark);
  border-top: 1px solid var(--ui87-border);
  padding: 2rem 1.2rem 3rem;
  text-align: center;
}
.ui87-footer-brand {
  color: var(--ui87-text-muted);
  font-size: 1.2rem;
  line-height: 1.8rem;
  margin-bottom: 1.2rem;
}
.ui87-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}
.ui87-footer-links a {
  background: var(--ui87-bg-card);
  color: var(--ui87-text-muted);
  padding: 0.4rem 0.8rem;
  border-radius: var(--ui87-radius-sm);
  font-size: 1.1rem;
  transition: all 0.2s;
}
.ui87-footer-links a:hover {
  background: var(--ui87-secondary);
  color: #fff;
}
.ui87-footer-copy {
  color: var(--ui87-gray);
  font-size: 1.1rem;
  margin-top: 1rem;
}

/* Bottom Navigation */
.ui87-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--ui87-bottom-h);
  background: var(--ui87-bg-dark);
  border-top: 1px solid var(--ui87-border);
  z-index: 1000;
  justify-content: space-around;
  align-items: center;
  padding: 0 0.3rem;
}
@media (max-width: 768px) {
  .ui87-bottom-nav {
    display: flex;
  }
}
.ui87-bottom-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 54px;
  background: none;
  border: none;
  color: var(--ui87-text-muted);
  cursor: pointer;
  transition: all 0.2s;
  border-radius: var(--ui87-radius);
  padding: 0.3rem;
}
.ui87-bottom-btn:hover,
.ui87-bottom-btn:focus {
  color: var(--ui87-highlight);
  background: rgba(0,206,209,0.1);
}
.ui87-bottom-btn.ui87-bottom-active {
  color: var(--ui87-accent);
}
.ui87-bottom-btn i,
.ui87-bottom-btn .material-icons,
.ui87-bottom-btn ion-icon,
.ui87-bottom-btn bi {
  font-size: 22px;
}
.ui87-bottom-btn span {
  font-size: 1rem;
  margin-top: 0.1rem;
  white-space: nowrap;
}

/* Testimonial */
.ui87-testimonial {
  background: var(--ui87-bg-card);
  border-radius: var(--ui87-radius-lg);
  padding: 1.2rem;
  margin-bottom: 1rem;
  border-left: 3px solid var(--ui87-highlight);
}
.ui87-testimonial p {
  font-style: italic;
  color: var(--ui87-text-muted);
  margin-bottom: 0.4rem;
}
.ui87-testimonial strong {
  color: var(--ui87-accent);
}

/* Payment Icons */
.ui87-payment-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem 0;
}
.ui87-payment-item {
  background: var(--ui87-bg-card);
  padding: 0.6rem 1.2rem;
  border-radius: var(--ui87-radius);
  color: var(--ui87-text-muted);
  font-size: 1.2rem;
  font-weight: 600;
  border: 1px solid var(--ui87-border);
}

/* Winner List */
.ui87-winner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--ui87-border);
}
.ui87-winner:last-child { border-bottom: none; }
.ui87-winner-name {
  font-size: 1.2rem;
  color: var(--ui87-highlight);
}
.ui87-winner-game {
  font-size: 1.1rem;
  color: var(--ui87-text-muted);
}
.ui87-winner-amount {
  font-size: 1.3rem;
  color: var(--ui87-accent);
  font-weight: 700;
}

/* FAQ */
.ui87-faq-item {
  margin-bottom: 1rem;
}
.ui87-faq-item h3 {
  color: var(--ui87-highlight);
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}
.ui87-faq-item p {
  color: var(--ui87-text-muted);
  line-height: 2rem;
}

/* Step list */
.ui87-steps {
  counter-reset: ui87step;
  list-style: none;
  padding: 0;
}
.ui87-steps li {
  counter-increment: ui87step;
  position: relative;
  padding: 0.6rem 0 0.6rem 3rem;
  color: var(--ui87-text-muted);
  line-height: 2rem;
}
.ui87-steps li::before {
  content: counter(ui87step);
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 2.2rem;
  height: 2.2rem;
  background: var(--ui87-accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
}

/* App Download CTA */
.ui87-app-cta {
  background: linear-gradient(135deg, var(--ui87-secondary), #2a5f8a);
  border-radius: var(--ui87-radius-lg);
  padding: 1.5rem;
  text-align: center;
}
.ui87-app-cta h3 {
  color: #fff;
  font-size: 1.6rem;
  margin-bottom: 0.8rem;
}

/* Utility */
.ui87-text-center { text-align: center; }
.ui87-mt-1 { margin-top: 1rem; }
.ui87-mb-1 { margin-bottom: 1rem; }
.ui87-mt-2 { margin-top: 2rem; }
.ui87-mb-2 { margin-bottom: 2rem; }
.ui87-flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}
.ui87-gap-1 { gap: 1rem; }

/* Desktop hidden on mobile */
@media (min-width: 769px) {
  .ui87-bottom-nav { display: none; }
  .ui87-container { max-width: 768px; }
  body { font-size: 1.6rem; }
}

/* Highlight badges */
.ui87-badge {
  display: inline-block;
  background: var(--ui87-accent);
  color: #fff;
  font-size: 1rem;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  font-weight: 600;
  vertical-align: middle;
}
.ui87-badge-new {
  background: #e53e3e;
}

/* Responsive tweaks */
@media (max-width: 360px) {
  .ui87-game-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .ui87-header-logo span {
    font-size: 1.3rem;
  }
}