/* 5777 port - Core Design Stylesheet */
/* All classes use uief- prefix for namespace isolation */
/* Color palette: #1E1E1E | #9932CC | #9370DB | #F8F8FF | #6C757D | #808080 */

/* === CSS Variables === */
:root {
  --uief-primary: #9932CC;
  --uief-secondary: #9370DB;
  --uief-bg: #1E1E1E;
  --uief-bg-card: #2A2A2A;
  --uief-bg-dark: #151515;
  --uief-text: #F8F8FF;
  --uief-text-muted: #6C757D;
  --uief-text-gray: #808080;
  --uief-accent: #9932CC;
  --uief-accent-light: #B565E0;
  --uief-border: #3A3A3A;
  --uief-gradient: linear-gradient(135deg, #9932CC 0%, #9370DB 100%);
  --uief-radius: 8px;
  --uief-radius-lg: 12px;
  --uief-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  --uief-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  font-size: 62.5%;
}

/* === Reset & Base === */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--uief-bg);
  color: var(--uief-text);
  font-size: 1.4rem;
  line-height: 1.5rem;
  max-width: 430px;
  margin: 0 auto;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--uief-accent-light); text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

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

/* === Header === */
.uief-header {
  position: fixed; top: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 430px; height: 56px;
  background: var(--uief-bg-dark);
  border-bottom: 1px solid var(--uief-border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.2rem; z-index: 1000;
}
.uief-header-left { display: flex; align-items: center; gap: 0.8rem; }
.uief-header-logo { width: 28px; height: 28px; border-radius: 4px; }
.uief-header-name { color: var(--uief-text); font-size: 1.6rem; font-weight: 700; }
.uief-header-right { display: flex; gap: 0.6rem; }
.uief-btn-register {
  background: var(--uief-gradient); color: var(--uief-text);
  border: none; padding: 0.6rem 1.2rem; border-radius: var(--uief-radius);
  font-size: 1.2rem; font-weight: 600; cursor: pointer;
  transition: opacity 0.2s;
}
.uief-btn-register:hover { opacity: 0.9; }
.uief-btn-login {
  background: transparent; color: var(--uief-accent-light);
  border: 1px solid var(--uief-accent); padding: 0.6rem 1.2rem;
  border-radius: var(--uief-radius); font-size: 1.2rem;
  font-weight: 600; cursor: pointer; transition: background 0.2s;
}
.uief-btn-login:hover { background: rgba(153, 50, 204, 0.15); }
.uief-menu-btn {
  background: none; border: none; color: var(--uief-text);
  font-size: 2.2rem; cursor: pointer; padding: 0.4rem;
  display: flex; align-items: center;
}

/* === Mobile Menu === */
.uief-menu-overlay {
  display: none; position: fixed; top: 0; left: 0;
  width: 100%; height: 100%; background: rgba(0,0,0,0.6);
  z-index: 9998;
}
.uief-mobile-menu {
  position: fixed; top: 0; left: 0; width: 75%; max-width: 280px;
  height: 100%; background: var(--uief-bg-dark);
  transform: translateX(-100%); transition: transform 0.3s ease;
  z-index: 9999; padding: 2rem 1.5rem; overflow-y: auto;
}
.uief-mobile-menu-title {
  color: var(--uief-primary); font-size: 1.8rem; font-weight: 700;
  margin-bottom: 2rem; padding-bottom: 1rem;
  border-bottom: 1px solid var(--uief-border);
}
.uief-mobile-menu a {
  display: block; padding: 1rem 0; color: var(--uief-text);
  font-size: 1.4rem; border-bottom: 1px solid var(--uief-border);
  transition: color 0.2s;
}
.uief-mobile-menu a:hover { color: var(--uief-primary); }

/* === Carousel === */
.uief-carousel {
  position: relative; width: 100%; overflow: hidden;
  border-radius: var(--uief-radius-lg); margin-top: 0.5rem;
}
.uief-carousel-track {
  display: flex; transition: transform 0.5s ease;
}
.uief-carousel-slide {
  min-width: 100%; cursor: pointer;
}
.uief-carousel-slide img {
  width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover;
}
.uief-carousel-dots {
  position: absolute; bottom: 8px; left: 50%;
  transform: translateX(-50%); display: flex; gap: 6px;
}
.uief-carousel-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(248, 248, 255, 0.4); cursor: pointer;
  transition: background 0.3s;
}
.uief-carousel-dot-active { background: var(--uief-primary); }

/* === Section Titles === */
.uief-section-title {
  font-size: 1.8rem; font-weight: 700; color: var(--uief-text);
  margin: 2rem 0 1rem; padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--uief-primary);
}
.uief-section-title .material-icons {
  font-size: 2rem; vertical-align: middle; margin-right: 0.5rem;
  color: var(--uief-primary);
}

/* === Game Grid === */
.uief-game-section { margin: 1.5rem 0; }
.uief-game-section-title {
  font-size: 1.5rem; font-weight: 600; color: var(--uief-secondary);
  margin-bottom: 0.8rem; display: flex; align-items: center; gap: 0.5rem;
}
.uief-game-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}
.uief-game-card {
  text-align: center; cursor: pointer;
  transition: transform 0.2s; border-radius: var(--uief-radius);
  overflow: hidden;
}
.uief-game-card:hover { transform: scale(1.05); }
.uief-game-card img {
  width: 100%; aspect-ratio: 1/1; object-fit: cover;
  border-radius: var(--uief-radius);
}
.uief-game-card span {
  display: block; font-size: 1.1rem; color: var(--uief-text);
  margin-top: 0.3rem; line-height: 1.2rem;
  overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap;
}

/* === Content Cards === */
.uief-card {
  background: var(--uief-bg-card); border-radius: var(--uief-radius-lg);
  padding: 1.5rem; margin: 1rem 0; box-shadow: var(--uief-shadow);
}
.uief-card h2 {
  font-size: 1.6rem; color: var(--uief-text); margin-bottom: 0.8rem;
}
.uief-card h3 {
  font-size: 1.4rem; color: var(--uief-secondary); margin-bottom: 0.6rem;
}
.uief-card p {
  font-size: 1.3rem; line-height: 2rem; color: var(--uief-text-gray);
  margin-bottom: 0.8rem;
}

/* === Promo Links === */
.uief-promo-text {
  color: var(--uief-accent-light); font-weight: 600;
  cursor: pointer; text-decoration: underline;
  transition: color 0.2s;
}
.uief-promo-text:hover { color: var(--uief-primary); }
.uief-promo-btn {
  display: inline-block; background: var(--uief-gradient);
  color: var(--uief-text); padding: 0.8rem 2rem;
  border-radius: var(--uief-radius); font-weight: 600;
  font-size: 1.3rem; cursor: pointer; border: none;
  transition: opacity 0.2s; text-align: center;
}
.uief-promo-btn:hover { opacity: 0.9; }
.uief-promo-btn-lg {
  display: block; width: 100%; padding: 1.2rem;
  font-size: 1.5rem; text-align: center;
}
.uief-inline-link {
  color: var(--uief-accent-light); text-decoration: underline;
  cursor: pointer;
}

/* === Footer === */
.uief-footer {
  background: var(--uief-bg-dark); padding: 2rem 1.2rem 8rem;
  border-top: 1px solid var(--uief-border); margin-top: 2rem;
}
.uief-footer-brand {
  text-align: center; margin-bottom: 1.5rem;
}
.uief-footer-brand p {
  font-size: 1.2rem; color: var(--uief-text-gray); line-height: 1.8rem;
}
.uief-footer-links {
  display: flex; flex-wrap: wrap; gap: 0.8rem;
  justify-content: center; margin: 1rem 0;
}
.uief-footer-links a {
  background: var(--uief-bg-card); color: var(--uief-text);
  padding: 0.5rem 1rem; border-radius: var(--uief-radius);
  font-size: 1.1rem; border: 1px solid var(--uief-border);
  transition: border-color 0.2s;
}
.uief-footer-links a:hover { border-color: var(--uief-primary); }
.uief-footer-copy {
  text-align: center; font-size: 1.1rem;
  color: var(--uief-text-muted); margin-top: 1rem;
}

/* === Bottom Navigation === */
.uief-bnav {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 430px; height: 60px;
  background: var(--uief-bg-dark);
  border-top: 1px solid var(--uief-border);
  display: flex; justify-content: space-around; align-items: center;
  z-index: 1000;
}
.uief-bnav-btn {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; min-width: 60px; min-height: 50px;
  background: none; border: none; color: var(--uief-text-gray);
  font-size: 1rem; cursor: pointer; transition: color 0.2s, transform 0.15s;
  padding: 0.3rem 0;
}
.uief-bnav-btn:active { transform: scale(0.92); }
.uief-bnav-btn .bnav-icon { font-size: 22px; margin-bottom: 2px; }
.uief-bnav-btn span { font-size: 1rem; }
.uief-bnav-active {
  color: var(--uief-primary) !important;
}
.uief-bnav-active .bnav-icon {
  filter: drop-shadow(0 0 4px rgba(153, 50, 204, 0.5));
}

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

/* === Help Page Styles === */
.uief-help-content { padding: 1.2rem; }
.uief-help-content h1 {
  font-size: 2rem; color: var(--uief-text); margin-bottom: 1rem;
}
.uief-help-content h2 {
  font-size: 1.6rem; color: var(--uief-primary); margin: 1.5rem 0 0.8rem;
}
.uief-help-content h3 {
  font-size: 1.4rem; color: var(--uief-secondary); margin: 1rem 0 0.5rem;
}
.uief-help-content p {
  font-size: 1.3rem; line-height: 2rem; color: var(--uief-text-gray);
  margin-bottom: 0.8rem;
}
.uief-help-content ul, .uief-help-content ol {
  padding-left: 2rem; margin-bottom: 1rem;
}
.uief-help-content li {
  font-size: 1.3rem; line-height: 2rem; color: var(--uief-text-gray);
  margin-bottom: 0.4rem;
}

/* === FAQ Styles === */
.uief-faq-item {
  background: var(--uief-bg-card); border-radius: var(--uief-radius);
  margin-bottom: 0.8rem; overflow: hidden;
  border: 1px solid var(--uief-border);
}
.uief-faq-q {
  padding: 1rem 1.2rem; font-weight: 600; color: var(--uief-text);
  font-size: 1.3rem;
}
.uief-faq-a {
  padding: 0 1.2rem 1rem; color: var(--uief-text-gray);
  font-size: 1.2rem; line-height: 1.8rem;
}

/* === Responsive === */
@media (max-width: 768px) {
  main { padding-bottom: 76px; }
}
@media (min-width: 769px) {
  .uief-bnav { display: none; }
  .uief-header { max-width: 430px; }
}