/**
 * 7u7 App - Main Stylesheet
 * Class prefix: ui90-
 * Color palette: #FFBF00 #FFD700 #FFCCCB #A0522D #0A0A0A
 */

/* CSS Variables */
:root {
  --ui90-primary: #FFBF00;
  --ui90-secondary: #FFD700;
  --ui90-accent: #FFCCCB;
  --ui90-brown: #A0522D;
  --ui90-dark: #0A0A0A;
  --ui90-bg: #0A0A0A;
  --ui90-card-bg: #1a1a1a;
  --ui90-card-border: #2a2a2a;
  --ui90-text: #FFD700;
  --ui90-text-light: #FFCCCB;
  --ui90-text-white: #ffffff;
  --ui90-text-muted: #999999;
  --ui90-gold-glow: rgba(255, 191, 0, 0.3);
  --ui90-radius: 10px;
  --ui90-radius-sm: 6px;
  --ui90-shadow: 0 2px 12px rgba(255, 191, 0, 0.15);
  --ui90-transition: all 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 62.5%; scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', 'Noto Sans Bengali', Tahoma, sans-serif;
  background: var(--ui90-dark);
  color: var(--ui90-text-white);
  line-height: 1.5rem;
  font-size: 1.4rem;
  max-width: 430px;
  margin: 0 auto;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--ui90-text); text-decoration: none; transition: var(--ui90-transition); }
a:hover { color: var(--ui90-primary); }
img { max-width: 100%; height: auto; display: block; }

/* Header */
.ui90-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 100%);
  border-bottom: 2px solid var(--ui90-primary);
  padding: 0 1rem; height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  max-width: 430px; margin: 0 auto;
  transition: var(--ui90-transition);
}
.ui90-header-scrolled { box-shadow: 0 4px 20px rgba(255, 191, 0, 0.2); }
.ui90-header-logo { display: flex; align-items: center; gap: 0.8rem; }
.ui90-header-logo img { width: 28px; height: 28px; border-radius: 4px; }
.ui90-header-logo span { color: var(--ui90-primary); font-size: 1.6rem; font-weight: 700; letter-spacing: 0.5px; }
.ui90-header-actions { display: flex; gap: 0.6rem; align-items: center; }
.ui90-btn-register {
  background: var(--ui90-primary); color: var(--ui90-dark);
  border: none; padding: 0.6rem 1.2rem; border-radius: var(--ui90-radius-sm);
  font-size: 1.2rem; font-weight: 700; cursor: pointer;
  transition: var(--ui90-transition);
}
.ui90-btn-register:hover { background: var(--ui90-secondary); transform: scale(1.05); }
.ui90-btn-login {
  background: transparent; color: var(--ui90-text);
  border: 1.5px solid var(--ui90-primary); padding: 0.5rem 1rem;
  border-radius: var(--ui90-radius-sm); font-size: 1.2rem; font-weight: 600;
  cursor: pointer; transition: var(--ui90-transition);
}
.ui90-btn-login:hover { background: rgba(255, 191, 0, 0.1); }
.ui90-menu-toggle {
  background: none; border: none; color: var(--ui90-primary);
  font-size: 2rem; cursor: pointer; padding: 0.4rem;
  display: flex; align-items: center;
}

/* Mobile Menu */
.ui90-mobile-menu {
  display: none; position: fixed; top: 56px; left: 0; right: 0;
  background: rgba(10, 10, 10, 0.98); z-index: 9999;
  padding: 1rem; max-width: 430px; margin: 0 auto;
  border-bottom: 2px solid var(--ui90-primary);
  opacity: 0; transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.ui90-mobile-menu a {
  display: block; padding: 1rem 1.2rem; color: var(--ui90-text-white);
  border-bottom: 1px solid var(--ui90-card-border); font-size: 1.4rem;
}
.ui90-mobile-menu a:hover { color: var(--ui90-primary); background: rgba(255, 191, 0, 0.05); }

/* Main Content */
main { padding-top: 56px; }

/* Banner Carousel */
.ui90-banner { position: relative; overflow: hidden; cursor: pointer; }
.ui90-banner-slide {
  display: none; width: 100%; aspect-ratio: 16/9;
  object-fit: cover;
}
.ui90-banner-slide.ui90-banner-active { display: block; }
.ui90-banner-dots {
  position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 6px;
}
.ui90-banner-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.4); cursor: pointer;
  transition: var(--ui90-transition);
}
.ui90-banner-dot.ui90-dot-active { background: var(--ui90-primary); width: 20px; border-radius: 4px; }

/* Section */
.ui90-section { padding: 2rem 1.2rem; }
.ui90-section-title {
  font-size: 1.8rem; color: var(--ui90-primary); font-weight: 700;
  margin-bottom: 1.2rem; padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--ui90-brown);
}
.ui90-section-subtitle { font-size: 1.4rem; color: var(--ui90-text); margin-bottom: 1rem; font-weight: 600; }

/* Game Grid */
.ui90-game-category-title {
  font-size: 1.5rem; color: var(--ui90-secondary); font-weight: 700;
  margin: 1.5rem 0 0.8rem; padding-left: 0.5rem;
  border-left: 3px solid var(--ui90-primary);
}
.ui90-game-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem; padding: 0.5rem 0;
}
.ui90-game-item { text-align: center; cursor: pointer; transition: var(--ui90-transition); }
.ui90-game-item:hover { transform: scale(1.08); }
.ui90-game-item img {
  width: 100%; aspect-ratio: 1; border-radius: var(--ui90-radius-sm);
  border: 1.5px solid var(--ui90-card-border); object-fit: cover;
}
.ui90-game-item span {
  display: block; font-size: 1.1rem; color: var(--ui90-text-light);
  margin-top: 0.3rem; overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap;
}

/* Cards */
.ui90-card {
  background: var(--ui90-card-bg); border: 1px solid var(--ui90-card-border);
  border-radius: var(--ui90-radius); padding: 1.5rem;
  margin-bottom: 1.2rem; transition: var(--ui90-transition);
}
.ui90-card:hover { border-color: var(--ui90-primary); box-shadow: var(--ui90-shadow); }
.ui90-card-title { font-size: 1.5rem; color: var(--ui90-primary); font-weight: 700; margin-bottom: 0.8rem; }
.ui90-card-text { font-size: 1.3rem; color: var(--ui90-text-light); line-height: 2rem; }

/* CTA Button */
.ui90-cta {
  display: inline-block; background: linear-gradient(135deg, var(--ui90-primary), var(--ui90-brown));
  color: var(--ui90-dark); padding: 1rem 2.5rem; border-radius: 50px;
  font-size: 1.5rem; font-weight: 700; cursor: pointer;
  border: none; text-align: center; transition: var(--ui90-transition);
  box-shadow: 0 4px 15px rgba(255, 191, 0, 0.3);
}
.ui90-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255, 191, 0, 0.4); }
.ui90-cta-outline {
  display: inline-block; background: transparent;
  color: var(--ui90-primary); padding: 0.8rem 2rem;
  border: 2px solid var(--ui90-primary); border-radius: 50px;
  font-size: 1.3rem; font-weight: 600; cursor: pointer;
  text-align: center; transition: var(--ui90-transition);
}
.ui90-cta-outline:hover { background: rgba(255, 191, 0, 0.1); }

/* Promo Link Text */
.ui90-promo-text {
  color: var(--ui90-primary); font-weight: 700; cursor: pointer;
  border-bottom: 1px dashed var(--ui90-primary);
  transition: var(--ui90-transition);
}
.ui90-promo-text:hover { color: var(--ui90-secondary); }

/* Footer */
.ui90-footer {
  background: #0d0d0d; padding: 2rem 1.2rem 1rem;
  border-top: 2px solid var(--ui90-brown);
}
.ui90-footer-brand { font-size: 1.3rem; color: var(--ui90-text-muted); line-height: 2rem; margin-bottom: 1.5rem; }
.ui90-footer-links { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 1.5rem; }
.ui90-footer-links a {
  background: var(--ui90-card-bg); border: 1px solid var(--ui90-card-border);
  padding: 0.5rem 1rem; border-radius: var(--ui90-radius-sm);
  font-size: 1.1rem; color: var(--ui90-text-light);
  transition: var(--ui90-transition);
}
.ui90-footer-links a:hover { border-color: var(--ui90-primary); color: var(--ui90-primary); }
.ui90-footer-copy { font-size: 1.1rem; color: var(--ui90-text-muted); text-align: center; padding-top: 1rem; border-top: 1px solid var(--ui90-card-border); }

/* Bottom Navigation */
.ui90-bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000;
  background: linear-gradient(180deg, #1a1a1a 0%, #0d0d0d 100%);
  border-top: 2px solid var(--ui90-brown);
  display: flex; justify-content: space-around; align-items: center;
  height: 60px; max-width: 430px; margin: 0 auto;
  padding: 0 0.3rem;
}
.ui90-bottom-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-width: 60px; min-height: 52px; background: none; border: none;
  color: var(--ui90-text-muted); cursor: pointer;
  transition: var(--ui90-transition); padding: 0.3rem;
  border-radius: 8px;
}
.ui90-bottom-btn:hover, .ui90-bottom-btn.ui90-btn-active {
  color: var(--ui90-primary); background: rgba(255, 191, 0, 0.08);
}
.ui90-bottom-btn .material-icons, .ui90-bottom-btn .fas, .ui90-bottom-btn .far, .ui90-bottom-btn .bi {
  font-size: 22px; margin-bottom: 2px;
}
.ui90-bottom-btn span { font-size: 1rem; white-space: nowrap; }

/* Partners */
.ui90-partners { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; margin: 1rem 0; }
.ui90-partners span {
  font-size: 1.1rem; color: var(--ui90-text-muted); padding: 0.4rem 0.8rem;
  border: 1px solid var(--ui90-card-border); border-radius: 4px;
}

/* FAQ Accordion */
.ui90-faq-item { border-bottom: 1px solid var(--ui90-card-border); }
.ui90-faq-q {
  font-size: 1.3rem; color: var(--ui90-text); padding: 1rem 0.5rem;
  cursor: pointer; font-weight: 600;
}
.ui90-faq-a {
  font-size: 1.2rem; color: var(--ui90-text-light); padding: 0 0.5rem 1rem;
  line-height: 2rem; display: none;
}

/* Features Grid */
.ui90-features-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.ui90-feature-item {
  background: var(--ui90-card-bg); border: 1px solid var(--ui90-card-border);
  border-radius: var(--ui90-radius-sm); padding: 1rem; text-align: center;
  transition: var(--ui90-transition);
}
.ui90-feature-item:hover { border-color: var(--ui90-primary); }
.ui90-feature-item i, .ui90-feature-item .material-icons { font-size: 2.4rem; color: var(--ui90-primary); margin-bottom: 0.5rem; }
.ui90-feature-item h3 { font-size: 1.3rem; color: var(--ui90-text); margin-bottom: 0.3rem; }
.ui90-feature-item p { font-size: 1.1rem; color: var(--ui90-text-muted); line-height: 1.6rem; }

/* Testimonials */
.ui90-testimonial {
  background: var(--ui90-card-bg); border: 1px solid var(--ui90-card-border);
  border-radius: var(--ui90-radius); padding: 1.2rem; margin-bottom: 1rem;
}
.ui90-testimonial-name { font-size: 1.3rem; color: var(--ui90-primary); font-weight: 600; }
.ui90-testimonial-text { font-size: 1.2rem; color: var(--ui90-text-light); margin-top: 0.5rem; line-height: 1.8rem; }

/* Winners */
.ui90-winner-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.8rem 0; border-bottom: 1px solid var(--ui90-card-border);
}
.ui90-winner-name { font-size: 1.2rem; color: var(--ui90-text-light); }
.ui90-winner-amount { font-size: 1.3rem; color: var(--ui90-primary); font-weight: 700; }
.ui90-winner-game { font-size: 1.1rem; color: var(--ui90-text-muted); }

/* Payment */
.ui90-payment-grid { display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: center; }
.ui90-payment-item {
  background: var(--ui90-card-bg); border: 1px solid var(--ui90-card-border);
  border-radius: var(--ui90-radius-sm); padding: 0.6rem 1.2rem;
  font-size: 1.2rem; color: var(--ui90-text-light);
}

/* Responsive */
@media (min-width: 769px) {
  .ui90-bottom-nav { display: none; }
  .ui90-mobile-menu { display: none !important; }
  body { max-width: 430px; }
}
@media (max-width: 768px) {
  main { padding-bottom: 80px; }
}

/* Utility */
.ui90-text-center { text-align: center; }
.ui90-text-gold { color: var(--ui90-primary); }
.ui90-text-brown { color: var(--ui90-brown); }
.ui90-mt-1 { margin-top: 1rem; }
.ui90-mt-2 { margin-top: 2rem; }
.ui90-mb-1 { margin-bottom: 1rem; }
.ui90-mb-2 { margin-bottom: 2rem; }
.ui90-p-1 { padding: 1rem; }
.ui90-hidden { display: none; }

/* List styles */
.ui90-list { list-style: none; padding: 0; }
.ui90-list li {
  position: relative; padding: 0.6rem 0 0.6rem 1.8rem;
  font-size: 1.3rem; color: var(--ui90-text-light); line-height: 1.8rem;
}
.ui90-list li::before {
  content: ''; position: absolute; left: 0; top: 1.1rem;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ui90-primary);
}

/* Badge */
.ui90-badge {
  display: inline-block; background: var(--ui90-primary);
  color: var(--ui90-dark); font-size: 1rem; font-weight: 700;
  padding: 0.2rem 0.6rem; border-radius: 3px;
}