/**
 * PH789 Core Stylesheet
 * All classes use uia6- prefix for namespace isolation
 * Mobile-first responsive design, max-width: 430px
 */

/* CSS Variables */
:root {
  --uia6-primary: #FF69B4;
  --uia6-primary-dark: #E05599;
  --uia6-primary-light: #FF8DC7;
  --uia6-bg: #273746;
  --uia6-bg-dark: #1B2A36;
  --uia6-bg-light: #2F4356;
  --uia6-text: #FFFFFF;
  --uia6-text-muted: #B0BEC5;
  --uia6-text-dim: #78909C;
  --uia6-accent: #FFD700;
  --uia6-success: #4CAF50;
  --uia6-danger: #FF5252;
  --uia6-card-bg: #1E2F3D;
  --uia6-border: #3A5068;
  --uia6-shadow: rgba(0, 0, 0, 0.3);
  --uia6-radius: 1.2rem;
  --uia6-radius-sm: 0.8rem;
  --uia6-radius-lg: 1.6rem;
  --uia6-transition: all 0.3s ease;
  font-size: 62.5%;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--uia6-bg);
  color: var(--uia6-text);
  font-size: 1.6rem;
  line-height: 1.5;
  overflow-x: hidden;
  max-width: 430px;
  margin: 0 auto;
}

a {
  color: var(--uia6-primary);
  text-decoration: none;
  transition: var(--uia6-transition);
}

a:hover { color: var(--uia6-primary-light); }
img { max-width: 100%; height: auto; display: block; }

/* Header */
.uia6-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  height: 5.6rem;
  background: var(--uia6-bg-dark);
  border-bottom: 1px solid var(--uia6-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.2rem;
  z-index: 1000;
  transition: var(--uia6-transition);
}

.uia6-header-scrolled {
  background: rgba(27, 42, 54, 0.96);
  box-shadow: 0 2px 12px var(--uia6-shadow);
}

.uia6-header-left {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.uia6-header-logo {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 0.6rem;
}

.uia6-header-name {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--uia6-primary);
  letter-spacing: 0.5px;
}

.uia6-header-right {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.uia6-btn-register {
  background: var(--uia6-primary);
  color: var(--uia6-bg-dark);
  border: none;
  padding: 0.7rem 1.4rem;
  border-radius: var(--uia6-radius-sm);
  font-size: 1.3rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--uia6-transition);
  min-height: 3.6rem;
  min-width: 7rem;
}

.uia6-btn-register:hover {
  background: var(--uia6-primary-dark);
  transform: scale(1.03);
}

.uia6-btn-login {
  background: transparent;
  color: var(--uia6-primary);
  border: 2px solid var(--uia6-primary);
  padding: 0.6rem 1.2rem;
  border-radius: var(--uia6-radius-sm);
  font-size: 1.3rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--uia6-transition);
  min-height: 3.6rem;
}

.uia6-btn-login:hover {
  background: var(--uia6-primary);
  color: var(--uia6-bg-dark);
}

.uia6-menu-toggle {
  background: none;
  border: none;
  color: var(--uia6-text);
  font-size: 2.4rem;
  cursor: pointer;
  padding: 0.4rem;
}

/* Mobile Menu */
.uia6-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: var(--uia6-transition);
}

.uia6-overlay-active {
  opacity: 1;
  visibility: visible;
}

.uia6-mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: var(--uia6-bg-dark);
  z-index: 9999;
  transition: right 0.35s ease;
  overflow-y: auto;
  padding: 2rem 1.6rem;
}

.uia6-menu-active { right: 0; }

.uia6-menu-close {
  background: none;
  border: none;
  color: var(--uia6-text);
  font-size: 2.4rem;
  cursor: pointer;
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
}

.uia6-menu-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--uia6-border);
}

.uia6-menu-logo {
  width: 3.6rem;
  height: 3.6rem;
  border-radius: 0.8rem;
}

.uia6-menu-brand {
  font-size: 2rem;
  font-weight: 700;
  color: var(--uia6-primary);
}

.uia6-menu-nav { list-style: none; }

.uia6-menu-nav li {
  border-bottom: 1px solid var(--uia6-border);
}

.uia6-menu-nav a {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.4rem 0.8rem;
  color: var(--uia6-text);
  font-size: 1.5rem;
  transition: var(--uia6-transition);
}

.uia6-menu-nav a:hover {
  color: var(--uia6-primary);
  padding-left: 1.2rem;
}

.uia6-menu-nav .material-icons {
  font-size: 2rem;
  color: var(--uia6-primary);
}

/* Main Content */
.uia6-main {
  padding-top: 5.6rem;
}

@media (max-width: 768px) {
  .uia6-main {
    padding-bottom: 7rem;
  }
}

.uia6-container {
  width: 100%;
  padding: 0 1.2rem;
  max-width: 430px;
  margin: 0 auto;
}

/* Slider */
.uia6-slider {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 0 0 var(--uia6-radius) var(--uia6-radius);
}

.uia6-slides-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16/8;
}

.uia6-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease;
  cursor: pointer;
}

.uia6-slide-active { opacity: 1; }

.uia6-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.uia6-slider-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.6rem;
  z-index: 5;
}

.uia6-slider-dot {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: var(--uia6-transition);
}

.uia6-dot-active {
  background: var(--uia6-primary);
  width: 2.4rem;
  border-radius: 0.4rem;
}

/* Section Title */
.uia6-section {
  padding: 2rem 0;
}

.uia6-section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--uia6-text);
  margin-bottom: 1.4rem;
  padding-left: 1.2rem;
  border-left: 4px solid var(--uia6-primary);
  line-height: 1.3;
}

.uia6-section-title span {
  color: var(--uia6-primary);
}

/* Game Grid */
.uia6-game-category-title {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--uia6-primary);
  margin: 1.8rem 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.uia6-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.uia6-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  cursor: pointer;
  transition: var(--uia6-transition);
  padding: 0.6rem;
  border-radius: var(--uia6-radius-sm);
}

.uia6-game-item:hover {
  background: var(--uia6-bg-light);
  transform: translateY(-2px);
}

.uia6-game-img {
  width: 6.4rem;
  height: 6.4rem;
  border-radius: 1rem;
  margin-bottom: 0.4rem;
  border: 2px solid var(--uia6-border);
  transition: var(--uia6-transition);
}

.uia6-game-item:hover .uia6-game-img {
  border-color: var(--uia6-primary);
}

.uia6-game-name {
  font-size: 1.1rem;
  color: var(--uia6-text-muted);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 7rem;
}

/* Content Modules */
.uia6-card {
  background: var(--uia6-card-bg);
  border-radius: var(--uia6-radius);
  padding: 2rem;
  margin-bottom: 1.6rem;
  border: 1px solid var(--uia6-border);
}

.uia6-card h2 {
  font-size: 2rem;
  color: var(--uia6-primary);
  margin-bottom: 1.2rem;
}

.uia6-card h3 {
  font-size: 1.7rem;
  color: var(--uia6-primary-light);
  margin-bottom: 1rem;
}

.uia6-card p {
  color: var(--uia6-text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
  font-size: 1.4rem;
}

.uia6-card ul {
  list-style: none;
  padding: 0;
  margin-bottom: 1rem;
}

.uia6-card li {
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--uia6-border);
  color: var(--uia6-text-muted);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.uia6-card li:last-child { border-bottom: none; }

.uia6-card li .material-icons,
.uia6-card li i {
  color: var(--uia6-primary);
  font-size: 1.8rem;
  flex-shrink: 0;
}

/* Promo Link */
.uia6-promo-link {
  display: inline-block;
  color: var(--uia6-primary);
  font-weight: 700;
  cursor: pointer;
  transition: var(--uia6-transition);
  text-decoration: underline;
  font-size: 1.5rem;
}

.uia6-promo-link:hover {
  color: var(--uia6-primary-light);
}

.uia6-promo-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--uia6-primary), var(--uia6-primary-dark));
  color: var(--uia6-bg-dark);
  padding: 1.2rem 2.4rem;
  border-radius: var(--uia6-radius);
  font-size: 1.6rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: var(--uia6-transition);
  min-height: 4.8rem;
  text-align: center;
}

.uia6-promo-btn:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 16px rgba(255, 105, 180, 0.4);
}

/* Stats Grid */
.uia6-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.uia6-stat-item {
  background: var(--uia6-bg-light);
  border-radius: var(--uia6-radius-sm);
  padding: 1.4rem;
  text-align: center;
  border: 1px solid var(--uia6-border);
}

.uia6-stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--uia6-primary);
}

.uia6-stat-label {
  font-size: 1.2rem;
  color: var(--uia6-text-dim);
  margin-top: 0.4rem;
}

/* Winners List */
.uia6-winners-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.uia6-winner-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--uia6-bg-light);
  padding: 1rem 1.4rem;
  border-radius: var(--uia6-radius-sm);
  border: 1px solid var(--uia6-border);
}

.uia6-winner-name {
  font-size: 1.3rem;
  color: var(--uia6-text);
  font-weight: 600;
}

.uia6-winner-game {
  font-size: 1.2rem;
  color: var(--uia6-text-dim);
}

.uia6-winner-amount {
  font-size: 1.5rem;
  color: var(--uia6-accent);
  font-weight: 700;
}

/* Payment Icons */
.uia6-payment-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.uia6-payment-item {
  background: var(--uia6-bg-light);
  border: 1px solid var(--uia6-border);
  border-radius: var(--uia6-radius-sm);
  padding: 1rem 1.6rem;
  font-size: 1.3rem;
  color: var(--uia6-text-muted);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* FAQ */
.uia6-faq-item {
  border-bottom: 1px solid var(--uia6-border);
  padding: 1.4rem 0;
}

.uia6-faq-q {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--uia6-text);
  margin-bottom: 0.6rem;
}

.uia6-faq-a {
  font-size: 1.4rem;
  color: var(--uia6-text-muted);
  line-height: 1.6;
}

/* Footer */
.uia6-footer {
  background: var(--uia6-bg-dark);
  padding: 2.4rem 1.2rem 3rem;
  border-top: 2px solid var(--uia6-primary);
}

.uia6-footer-brand {
  text-align: center;
  margin-bottom: 2rem;
}

.uia6-footer-brand p {
  color: var(--uia6-text-dim);
  font-size: 1.3rem;
  line-height: 1.6;
  margin-top: 0.8rem;
}

.uia6-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.uia6-footer-link {
  color: var(--uia6-text-muted);
  font-size: 1.2rem;
  padding: 0.4rem 1rem;
  border: 1px solid var(--uia6-border);
  border-radius: 2rem;
  transition: var(--uia6-transition);
}

.uia6-footer-link:hover {
  color: var(--uia6-primary);
  border-color: var(--uia6-primary);
}

.uia6-footer-promo {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.uia6-footer-promo .uia6-promo-btn {
  font-size: 1.3rem;
  padding: 0.8rem 1.6rem;
  min-height: 3.6rem;
}

.uia6-footer-copy {
  text-align: center;
  color: var(--uia6-text-dim);
  font-size: 1.2rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--uia6-border);
}

/* Bottom Navigation */
.uia6-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  height: 6rem;
  background: var(--uia6-bg-dark);
  border-top: 1px solid var(--uia6-border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  box-shadow: 0 -2px 10px var(--uia6-shadow);
}

.uia6-bnav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  background: none;
  border: none;
  color: var(--uia6-text-dim);
  cursor: pointer;
  min-width: 6rem;
  min-height: 5.6rem;
  transition: var(--uia6-transition);
  padding: 0.4rem;
}

.uia6-bnav-btn:hover,
.uia6-bnav-active {
  color: var(--uia6-primary);
}

.uia6-bnav-btn i,
.uia6-bnav-btn .material-icons {
  font-size: 2.4rem;
  transition: var(--uia6-transition);
}

.uia6-bnav-btn:hover i,
.uia6-bnav-btn:hover .material-icons,
.uia6-bnav-active i,
.uia6-bnav-active .material-icons {
  transform: scale(1.15);
}

.uia6-bnav-label {
  font-size: 1rem;
  font-weight: 500;
}

/* Responsive */
@media (min-width: 769px) {
  .uia6-bottom-nav { display: none; }
  .uia6-menu-toggle { display: none; }
  .uia6-header { max-width: 430px; }
}

@media (max-width: 768px) {
  .uia6-main { padding-bottom: 7rem; }
}

/* Utilities */
.uia6-text-center { text-align: center; }
.uia6-mt-1 { margin-top: 1rem; }
.uia6-mt-2 { margin-top: 2rem; }
.uia6-mb-1 { margin-bottom: 1rem; }
.uia6-mb-2 { margin-bottom: 2rem; }
.uia6-hidden { display: none; }

/* Animation */
@keyframes uia6-fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.uia6-animate-in {
  animation: uia6-fadeIn 0.4s ease forwards;
}

/* Internal Link Style */
.uia6-internal-link {
  color: var(--uia6-primary);
  text-decoration: underline;
  font-weight: 500;
  transition: var(--uia6-transition);
}

.uia6-internal-link:hover {
  color: var(--uia6-primary-light);
}

/* Help Page Content */
.uia6-help-content {
  padding: 2rem 0;
}

.uia6-help-content h1 {
  font-size: 2.2rem;
  color: var(--uia6-primary);
  margin-bottom: 1.6rem;
}

.uia6-help-content h2 {
  font-size: 1.8rem;
  color: var(--uia6-text);
  margin: 2rem 0 1rem;
  padding-left: 1rem;
  border-left: 3px solid var(--uia6-primary);
}

.uia6-help-content p {
  color: var(--uia6-text-muted);
  line-height: 1.7;
  margin-bottom: 1.2rem;
  font-size: 1.4rem;
}

.uia6-help-content ol,
.uia6-help-content ul {
  padding-left: 2rem;
  margin-bottom: 1.2rem;
}

.uia6-help-content li {
  color: var(--uia6-text-muted);
  font-size: 1.4rem;
  margin-bottom: 0.6rem;
  line-height: 1.6;
}