/**
 * 1666 Game - Core Stylesheet
 * All classes use prefix "uide-" for namespace isolation
 * Color palette: #00E5FF | #00B8D4 | #FFAA00 | #FF69B4 | #0D1117
 * Mobile-first responsive design (max-width: 430px)
 */

/* CSS Variables */
:root {
  --uide-primary: #00E5FF;
  --uide-secondary: #00B8D4;
  --uide-accent: #FFAA00;
  --uide-pink: #FF69B4;
  --uide-bg: #0D1117;
  --uide-bg-card: #161b22;
  --uide-bg-light: #1c2333;
  --uide-text: #e6edf3;
  --uide-text-muted: #8b949e;
  --uide-border: #30363d;
  --uide-radius: 1.2rem;
  --uide-radius-sm: 0.8rem;
  --uide-shadow: 0 4px 20px rgba(0,229,255,0.15);
}

/* 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;
  background: var(--uide-bg);
  color: var(--uide-text);
  line-height: 1.5rem;
  font-size: 1.4rem;
  overflow-x: hidden;
  max-width: 430px;
  margin: 0 auto;
  min-height: 100vh;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

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

/* Header */
.uide-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  z-index: 1000;
  background: linear-gradient(135deg, #0D1117 0%, #161b22 100%);
  border-bottom: 1px solid var(--uide-border);
  padding: 0.8rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(10px);
}
.uide-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.uide-logo img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}
.uide-logo-text {
  font-size: 1.6rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--uide-primary), var(--uide-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.uide-header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.uide-btn-register, .uide-btn-login {
  padding: 0.5rem 1.2rem;
  border-radius: var(--uide-radius-sm);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}
.uide-btn-register {
  background: linear-gradient(135deg, var(--uide-accent), #FF8C00);
  color: #000;
}
.uide-btn-register:hover { transform: scale(1.05); box-shadow: 0 2px 12px rgba(255,170,0,0.4); }
.uide-btn-login {
  background: transparent;
  border: 1px solid var(--uide-primary);
  color: var(--uide-primary);
}
.uide-btn-login:hover { background: rgba(0,229,255,0.1); }
.uide-menu-toggle {
  background: none;
  border: none;
  color: var(--uide-text);
  font-size: 2rem;
  cursor: pointer;
  padding: 0.4rem;
  line-height: 1;
}

/* Mobile Menu */
.uide-mobile-menu {
  display: none;
  position: fixed;
  top: 52px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  background: var(--uide-bg-card);
  z-index: 9999;
  border-bottom: 2px solid var(--uide-primary);
  padding: 1rem 0;
  animation: uide-slideDown 0.3s ease;
}
@keyframes uide-slideDown {
  from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.uide-mobile-menu a {
  display: block;
  padding: 1rem 1.6rem;
  color: var(--uide-text);
  font-size: 1.4rem;
  border-bottom: 1px solid var(--uide-border);
  transition: background 0.2s;
}
.uide-mobile-menu a:hover { background: rgba(0,229,255,0.08); }
.uide-mobile-menu a i { margin-right: 0.8rem; color: var(--uide-primary); }

/* Main Content */
.uide-main {
  padding-top: 56px;
  padding-bottom: 2rem;
}
@media (max-width: 768px) {
  .uide-main { padding-bottom: 80px; }
}

/* Carousel */
.uide-carousel {
  position: relative;
  width: 100%;
  margin: 1rem 0;
  border-radius: var(--uide-radius);
  overflow: hidden;
}
.uide-slide {
  display: none;
  cursor: pointer;
}
.uide-slide img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--uide-radius);
}
.uide-dots {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
}
.uide-slide-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all 0.3s;
}
.uide-dot-active { background: var(--uide-accent); transform: scale(1.3); }

/* Section */
.uide-section {
  padding: 2rem 1.2rem;
}
.uide-section-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--uide-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.uide-section-title i { color: var(--uide-accent); }

/* Game Grid */
.uide-game-category-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 1.6rem 0 1rem;
  color: var(--uide-accent);
  padding-left: 0.4rem;
  border-left: 3px solid var(--uide-pink);
}
.uide-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}
.uide-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: transform 0.2s;
}
.uide-game-item:hover { transform: translateY(-3px); }
.uide-game-item img {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  object-fit: cover;
  border: 2px solid var(--uide-border);
  transition: border-color 0.2s;
}
.uide-game-item:hover img { border-color: var(--uide-primary); }
.uide-game-name {
  font-size: 1.1rem;
  text-align: center;
  margin-top: 0.4rem;
  color: var(--uide-text);
  line-height: 1.3;
  max-width: 78px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Cards */
.uide-card {
  background: var(--uide-bg-card);
  border-radius: var(--uide-radius);
  padding: 1.6rem;
  margin-bottom: 1.2rem;
  border: 1px solid var(--uide-border);
}
.uide-card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--uide-accent);
}
.uide-card p {
  font-size: 1.3rem;
  line-height: 1.8rem;
  color: var(--uide-text-muted);
  margin-bottom: 0.8rem;
}

/* Buttons */
.uide-btn-promo {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: linear-gradient(135deg, var(--uide-accent), #FF8C00);
  color: #000;
  font-weight: 700;
  font-size: 1.4rem;
  border-radius: var(--uide-radius-sm);
  cursor: pointer;
  border: none;
  transition: all 0.25s;
  text-align: center;
}
.uide-btn-promo:hover { transform: scale(1.05); box-shadow: 0 4px 16px rgba(255,170,0,0.4); }
.uide-btn-promo-outline {
  display: inline-block;
  padding: 0.6rem 1.6rem;
  border: 2px solid var(--uide-primary);
  color: var(--uide-primary);
  font-weight: 600;
  font-size: 1.3rem;
  border-radius: var(--uide-radius-sm);
  cursor: pointer;
  background: transparent;
  transition: all 0.25s;
}
.uide-btn-promo-outline:hover { background: rgba(0,229,255,0.1); }

/* Promo text link */
.uide-link-promo {
  color: var(--uide-accent);
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s;
}
.uide-link-promo:hover { color: #FFD700; text-decoration: underline; }

/* Footer */
.uide-footer {
  background: var(--uide-bg-card);
  padding: 2rem 1.2rem;
  border-top: 1px solid var(--uide-border);
  text-align: center;
}
.uide-footer-brand {
  font-size: 1.3rem;
  color: var(--uide-text-muted);
  line-height: 1.8rem;
  margin-bottom: 1.4rem;
}
.uide-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 1.4rem;
}
.uide-footer-links a {
  color: var(--uide-primary);
  font-size: 1.2rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--uide-border);
  border-radius: 6px;
  transition: all 0.2s;
}
.uide-footer-links a:hover { background: rgba(0,229,255,0.1); border-color: var(--uide-primary); }
.uide-footer-copy {
  font-size: 1.1rem;
  color: var(--uide-text-muted);
  border-top: 1px solid var(--uide-border);
  padding-top: 1rem;
  margin-top: 1rem;
}

/* Bottom Navigation */
.uide-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  height: 60px;
  background: linear-gradient(180deg, #161b22, #0D1117);
  border-top: 1px solid var(--uide-border);
  z-index: 1000;
  justify-content: space-around;
  align-items: center;
  padding: 0 0.4rem;
}
@media (max-width: 768px) {
  .uide-bottom-nav { display: flex; }
}
.uide-bottom-nav button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--uide-text-muted);
  font-size: 1rem;
  cursor: pointer;
  min-width: 58px;
  min-height: 52px;
  transition: all 0.2s;
  padding: 0.4rem 0;
}
.uide-bottom-nav button:hover,
.uide-bottom-nav button.uide-nav-active {
  color: var(--uide-primary);
}
.uide-bottom-nav button i,
.uide-bottom-nav button .material-icons,
.uide-bottom-nav button ion-icon {
  font-size: 22px;
  margin-bottom: 2px;
}
.uide-bottom-nav button span {
  font-size: 1rem;
  line-height: 1.2;
}
.uide-bottom-nav .uide-nav-active {
  color: var(--uide-accent);
}

/* FAQ */
.uide-faq-item {
  margin-bottom: 1rem;
}
.uide-faq-q {
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--uide-primary);
  margin-bottom: 0.4rem;
}
.uide-faq-a {
  font-size: 1.2rem;
  color: var(--uide-text-muted);
  line-height: 1.6rem;
  padding-left: 1rem;
}

/* Winner list */
.uide-winner-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.uide-winner-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1rem;
  background: var(--uide-bg-light);
  border-radius: var(--uide-radius-sm);
  font-size: 1.2rem;
}
.uide-winner-name { color: var(--uide-primary); font-weight: 600; }
.uide-winner-amount { color: var(--uide-accent); font-weight: 700; }
.uide-winner-game { color: var(--uide-text-muted); font-size: 1.1rem; }

/* Testimonial */
.uide-testimonial {
  background: var(--uide-bg-light);
  border-radius: var(--uide-radius);
  padding: 1.4rem;
  margin-bottom: 1rem;
  border-left: 3px solid var(--uide-pink);
}
.uide-testimonial-text {
  font-size: 1.3rem;
  color: var(--uide-text);
  font-style: italic;
  line-height: 1.7rem;
  margin-bottom: 0.6rem;
}
.uide-testimonial-author {
  font-size: 1.2rem;
  color: var(--uide-accent);
  font-weight: 600;
}

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

/* Download CTA */
.uide-download-box {
  background: linear-gradient(135deg, rgba(0,229,255,0.1), rgba(255,170,0,0.1));
  border-radius: var(--uide-radius);
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--uide-primary);
}
.uide-download-box h3 {
  font-size: 1.6rem;
  color: var(--uide-accent);
  margin-bottom: 0.8rem;
}

/* Features grid */
.uide-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.uide-feature-item {
  background: var(--uide-bg-light);
  border-radius: var(--uide-radius-sm);
  padding: 1.2rem;
  text-align: center;
}
.uide-feature-item i,
.uide-feature-item .material-icons {
  font-size: 2.4rem;
  color: var(--uide-accent);
  margin-bottom: 0.6rem;
}
.uide-feature-item h4 {
  font-size: 1.3rem;
  color: var(--uide-primary);
  margin-bottom: 0.4rem;
}
.uide-feature-item p {
  font-size: 1.1rem;
  color: var(--uide-text-muted);
}

/* Desktop hide */
@media (min-width: 769px) {
  .uide-bottom-nav { display: none; }
}
@media (min-width: 769px) {
  .uide-menu-toggle { display: none; }
}

/* Utility */
.uide-text-center { text-align: center; }
.uide-mt-1 { margin-top: 0.8rem; }
.uide-mt-2 { margin-top: 1.6rem; }
.uide-mb-1 { margin-bottom: 0.8rem; }
.uide-mb-2 { margin-bottom: 1.6rem; }
.uide-text-accent { color: var(--uide-accent); }
.uide-text-primary { color: var(--uide-primary); }
.uide-text-pink { color: var(--uide-pink); }
.uide-text-muted { color: var(--uide-text-muted); }
.uide-bold { font-weight: 700; }
.uide-divider {
  border: none;
  border-top: 1px solid var(--uide-border);
  margin: 1.6rem 0;
}

/* Badge */
.uide-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 1rem;
  border-radius: 4px;
  font-weight: 600;
}
.uide-badge-hot { background: #FF4444; color: #fff; }
.uide-badge-new { background: var(--uide-primary); color: #000; }
.uide-badge-vip { background: var(--uide-accent); color: #000; }