/**
 * 789bingo App APK - Core Stylesheet
 * All classes use sfa8- prefix for namespace isolation
 * Color palette: #F0E68C | #E5E5E5 | #141414 | #FFFACD
 */

/* CSS Variables */
:root {
  --sfa8-primary: #F0E68C;
  --sfa8-secondary: #E5E5E5;
  --sfa8-bg: #141414;
  --sfa8-bg-light: #1e1e1e;
  --sfa8-bg-card: #252525;
  --sfa8-text: #FFFACD;
  --sfa8-text-light: #E5E5E5;
  --sfa8-text-muted: #999;
  --sfa8-accent: #F0E68C;
  --sfa8-accent-hover: #e6d96e;
  --sfa8-border: #333;
  --sfa8-gold: #F0E68C;
  --sfa8-dark: #141414;
  --sfa8-radius: 8px;
  --sfa8-radius-lg: 12px;
  --sfa8-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  --sfa8-header-h: 56px;
  --sfa8-bnav-h: 62px;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 1.4rem;
  line-height: 1.5;
  color: var(--sfa8-text-light);
  background-color: var(--sfa8-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--sfa8-accent); text-decoration: none; }
a:hover { color: var(--sfa8-accent-hover); text-decoration: underline; }

/* Container */
.sfa8-container {
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.2rem;
}

.sfa8-wrapper {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
}

/* Header */
.sfa8-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--sfa8-header-h);
  background: var(--sfa8-bg);
  border-bottom: 1px solid var(--sfa8-border);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
}

.sfa8-header-left {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.sfa8-logo {
  width: 28px;
  height: 28px;
  border-radius: 4px;
}

.sfa8-site-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--sfa8-gold);
  white-space: nowrap;
}

.sfa8-header-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.sfa8-btn-register, .sfa8-btn-login {
  padding: 0.5rem 1.2rem;
  border-radius: var(--sfa8-radius);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  min-height: 36px;
}

.sfa8-btn-register {
  background: var(--sfa8-gold);
  color: var(--sfa8-dark);
}

.sfa8-btn-register:hover {
  background: var(--sfa8-accent-hover);
  transform: scale(1.03);
}

.sfa8-btn-login {
  background: transparent;
  color: var(--sfa8-gold);
  border: 1px solid var(--sfa8-gold);
}

.sfa8-btn-login:hover {
  background: rgba(240, 230, 140, 0.1);
  transform: scale(1.03);
}

.sfa8-menu-toggle {
  background: none;
  border: none;
  color: var(--sfa8-text-light);
  font-size: 2rem;
  cursor: pointer;
  padding: 0.4rem;
  display: flex;
  align-items: center;
}

/* Mobile Menu */
.sfa8-mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 75%;
  max-width: 300px;
  height: 100vh;
  background: var(--sfa8-bg-light);
  z-index: 9999;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  padding: 2rem 1.5rem;
  overflow-y: auto;
}

.sfa8-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9998;
  display: none;
}

.sfa8-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--sfa8-border);
}

.sfa8-menu-close {
  background: none;
  border: none;
  color: var(--sfa8-text-light);
  font-size: 2rem;
  cursor: pointer;
}

.sfa8-menu-links {
  list-style: none;
}

.sfa8-menu-links li {
  border-bottom: 1px solid var(--sfa8-border);
}

.sfa8-menu-links a {
  display: block;
  padding: 1.2rem 0;
  color: var(--sfa8-text-light);
  font-size: 1.4rem;
  transition: color 0.2s;
}

.sfa8-menu-links a:hover {
  color: var(--sfa8-gold);
  text-decoration: none;
}

/* Main Content */
.sfa8-main {
  padding-top: calc(var(--sfa8-header-h) + 1rem);
  min-height: 100vh;
}

@media (max-width: 768px) {
  .sfa8-main {
    padding-bottom: calc(var(--sfa8-bnav-h) + 2rem);
  }
}

/* Carousel */
.sfa8-carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--sfa8-radius-lg);
  margin-bottom: 2rem;
}

.sfa8-slide {
  display: none;
  cursor: pointer;
}

.sfa8-slide img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--sfa8-radius-lg);
}

.sfa8-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
}

.sfa8-slide-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: background 0.3s;
}

.sfa8-dot-active {
  background: var(--sfa8-gold);
  width: 20px;
  border-radius: 4px;
}

/* Section Titles */
.sfa8-section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--sfa8-gold);
  margin-bottom: 1.2rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--sfa8-gold);
}

.sfa8-section {
  margin-bottom: 2.5rem;
}

/* Game Grid */
.sfa8-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}

.sfa8-game-item {
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s;
  border-radius: var(--sfa8-radius);
  overflow: hidden;
  background: var(--sfa8-bg-card);
}

.sfa8-game-item:hover {
  transform: scale(1.04);
}

.sfa8-game-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--sfa8-radius) var(--sfa8-radius) 0 0;
}

.sfa8-game-name {
  font-size: 1.05rem;
  color: var(--sfa8-text-light);
  padding: 0.4rem 0.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Category Title */
.sfa8-cat-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--sfa8-gold);
  margin: 1.8rem 0 1rem;
  padding-left: 0.8rem;
  border-left: 3px solid var(--sfa8-gold);
}

/* Content Cards */
.sfa8-card {
  background: var(--sfa8-bg-card);
  border-radius: var(--sfa8-radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--sfa8-border);
}

.sfa8-card-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--sfa8-gold);
  margin-bottom: 0.8rem;
}

.sfa8-card p {
  color: var(--sfa8-text-light);
  line-height: 1.6;
  margin-bottom: 0.6rem;
  font-size: 1.3rem;
}

/* CTA Buttons */
.sfa8-cta-btn {
  display: inline-block;
  background: var(--sfa8-gold);
  color: var(--sfa8-dark);
  padding: 1rem 2.5rem;
  border-radius: var(--sfa8-radius);
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: all 0.25s;
  min-height: 44px;
}

.sfa8-cta-btn:hover {
  background: var(--sfa8-accent-hover);
  transform: scale(1.03);
  text-decoration: none;
  color: var(--sfa8-dark);
}

.sfa8-cta-outline {
  display: inline-block;
  border: 2px solid var(--sfa8-gold);
  color: var(--sfa8-gold);
  padding: 0.8rem 2rem;
  border-radius: var(--sfa8-radius);
  font-size: 1.3rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s;
}

.sfa8-cta-outline:hover {
  background: rgba(240, 230, 140, 0.12);
  text-decoration: none;
  color: var(--sfa8-gold);
}

/* Promo link text */
.sfa8-promo-link {
  color: var(--sfa8-gold);
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s;
}

.sfa8-promo-link:hover {
  color: var(--sfa8-accent-hover);
  text-decoration: underline;
}

/* Footer */
.sfa8-footer {
  background: var(--sfa8-bg-light);
  border-top: 1px solid var(--sfa8-border);
  padding: 2rem 0 1rem;
  margin-top: 3rem;
}

.sfa8-footer-brand {
  text-align: center;
  margin-bottom: 1.5rem;
}

.sfa8-footer-brand p {
  color: var(--sfa8-text-muted);
  font-size: 1.2rem;
  line-height: 1.5;
  max-width: 360px;
  margin: 0 auto 0.4rem;
}

.sfa8-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.sfa8-footer-links a {
  color: var(--sfa8-text-light);
  font-size: 1.2rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--sfa8-border);
  border-radius: var(--sfa8-radius);
  transition: all 0.2s;
}

.sfa8-footer-links a:hover {
  border-color: var(--sfa8-gold);
  color: var(--sfa8-gold);
  text-decoration: none;
}

.sfa8-footer-promo {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.sfa8-footer-promo button {
  background: var(--sfa8-gold);
  color: var(--sfa8-dark);
  border: none;
  padding: 0.6rem 1.4rem;
  border-radius: var(--sfa8-radius);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.sfa8-footer-promo button:hover {
  background: var(--sfa8-accent-hover);
  transform: scale(1.03);
}

.sfa8-footer-partners {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.sfa8-footer-partners img {
  height: 24px;
  opacity: 0.6;
  filter: grayscale(50%);
}

.sfa8-copyright {
  text-align: center;
  color: var(--sfa8-text-muted);
  font-size: 1.1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--sfa8-border);
}

/* Bottom Navigation */
.sfa8-bnav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--sfa8-bnav-h);
  background: var(--sfa8-bg);
  border-top: 1px solid var(--sfa8-border);
  z-index: 1000;
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 0 0.3rem;
}

.sfa8-bnav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 52px;
  background: none;
  border: none;
  color: var(--sfa8-text-muted);
  cursor: pointer;
  transition: all 0.25s;
  padding: 0.4rem;
  border-radius: var(--sfa8-radius);
}

.sfa8-bnav-btn i, .sfa8-bnav-btn span.material-icons-outlined,
.sfa8-bnav-btn ion-icon {
  font-size: 22px;
  margin-bottom: 2px;
  transition: transform 0.2s, color 0.2s;
}

.sfa8-bnav-btn span.sfa8-bnav-label {
  font-size: 1rem;
  line-height: 1;
}

.sfa8-bnav-btn:hover, .sfa8-bnav-active {
  color: var(--sfa8-gold);
}

.sfa8-bnav-btn:hover i, .sfa8-bnav-active i,
.sfa8-bnav-btn:hover span.material-icons-outlined,
.sfa8-bnav-active span.material-icons-outlined,
.sfa8-bnav-btn:hover ion-icon, .sfa8-bnav-active ion-icon {
  transform: scale(1.15);
  color: var(--sfa8-gold);
}

@media (min-width: 769px) {
  .sfa8-bnav { display: none; }
}

/* Testimonials */
.sfa8-testimonial {
  background: var(--sfa8-bg-card);
  border-radius: var(--sfa8-radius-lg);
  padding: 1.2rem;
  margin-bottom: 1rem;
  border-left: 3px solid var(--sfa8-gold);
}

.sfa8-testimonial-author {
  font-weight: 700;
  color: var(--sfa8-gold);
  font-size: 1.3rem;
  margin-bottom: 0.3rem;
}

.sfa8-testimonial-text {
  color: var(--sfa8-text-light);
  font-size: 1.2rem;
  line-height: 1.5;
}

/* Winner showcase */
.sfa8-winner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem;
  background: var(--sfa8-bg-card);
  border-radius: var(--sfa8-radius);
  margin-bottom: 0.6rem;
}

.sfa8-winner img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.sfa8-winner-info {
  flex: 1;
}

.sfa8-winner-name {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--sfa8-gold);
}

.sfa8-winner-amount {
  font-size: 1.1rem;
  color: var(--sfa8-text-muted);
}

/* FAQ */
.sfa8-faq-item {
  margin-bottom: 1rem;
}

.sfa8-faq-q {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--sfa8-gold);
  margin-bottom: 0.4rem;
}

.sfa8-faq-a {
  font-size: 1.3rem;
  color: var(--sfa8-text-light);
  line-height: 1.5;
}

/* Feature list */
.sfa8-feature-list {
  list-style: none;
  padding: 0;
}

.sfa8-feature-list li {
  padding: 0.6rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--sfa8-text-light);
  font-size: 1.3rem;
  line-height: 1.5;
}

.sfa8-feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1.1rem;
  width: 6px;
  height: 6px;
  background: var(--sfa8-gold);
  border-radius: 50%;
}

/* Payment icons */
.sfa8-payment-row {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.sfa8-payment-icon {
  background: var(--sfa8-bg-card);
  border: 1px solid var(--sfa8-border);
  border-radius: var(--sfa8-radius);
  padding: 0.6rem 1rem;
  font-size: 1.2rem;
  color: var(--sfa8-text-light);
}

/* Download CTA */
.sfa8-download-box {
  background: linear-gradient(135deg, var(--sfa8-bg-card), #2a2520);
  border: 2px solid var(--sfa8-gold);
  border-radius: var(--sfa8-radius-lg);
  padding: 2rem;
  text-align: center;
}

.sfa8-download-box h3 {
  color: var(--sfa8-gold);
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

/* Utility */
.sfa8-text-center { text-align: center; }
.sfa8-mt-1 { margin-top: 1rem; }
.sfa8-mt-2 { margin-top: 2rem; }
.sfa8-mb-1 { margin-bottom: 1rem; }
.sfa8-mb-2 { margin-bottom: 2rem; }
.sfa8-hidden { display: none; }

/* Desktop adjustments */
@media (min-width: 769px) {
  body {
    background-color: #0a0a0a;
  }
  .sfa8-container {
    max-width: 430px;
    background: var(--sfa8-bg);
    min-height: 100vh;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
  }
}