:root {
  --primary-color: #FFD700;
  --secondary-color: #1A1A1A;
  --accent-color: #000080;
  --text-light: #ffffff;
  --text-dark: #1A1A1A;
  --header-offset: 155px; /* Desktop: Marquee (45px) + Header Top (60px) + Main Nav (50px) */

  --neon-primary: var(--primary-color, #FFD700);
  --neon-secondary: #FF6600; /* Neon Orange */
  --neon-accent: #FF00FF; /* Neon Pink/Magenta */
  --neon-header-glow: #FFFF00; /* Neon Yellow for header-top */
  --neon-nav-glow: #FF0000; /* Neon Red for main-nav */
  --neon-btn-glow: #00FFFF; /* Neon Cyan for buttons */
}

@media (max-width: 768px) {
  :root {
    --header-offset: 140px; /* Mobile: Marquee (40px) + Header Top (50px) + Mobile Buttons (50px) */
  }
}

/* Base Styles */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding-top: var(--header-offset);
  background-color: #0d0d0d;
  color: var(--text-light);
  overflow-x: hidden;
}

/* Language Consistency */
html {
  lang: "vi-VN";
}

/* Utility Classes for Neon Effects */
/* Dynamic Neon Colors - Multiple Flowing Color Effects */
@keyframes rainbow-border {
  0% { border-color: #ff0000; box-shadow: 0 0 10px #ff0000, 0 0 20px #ff0000; }
  16.6% { border-color: #ff8000; box-shadow: 0 0 10px #ff8000, 0 0 20px #ff8000; }
  33.3% { border-color: #ffff00; box-shadow: 0 0 10px #ffff00, 0 0 20px #ffff00; }
  50% { border-color: #00ff00; box-shadow: 0 0 10px #00ff00, 0 0 20px #00ff00; }
  66.6% { border-color: #0000ff; box-shadow: 0 0 10px #0000ff, 0 0 20px #0000ff; }
  83.3% { border-color: #8000ff; box-shadow: 0 0 10px #8000ff, 0 0 20px #8000ff; }
  100% { border-color: #ff0000; box-shadow: 0 0 10px #ff0000, 0 0 20px #ff0000; }
}

@keyframes hue-spin {
  0% { filter: hue-rotate(0deg); box-shadow: 0 0 10px var(--neon-primary), 0 0 20px var(--neon-primary); }
  100% { filter: hue-rotate(360deg); box-shadow: 0 0 10px var(--neon-primary), 0 0 20px var(--neon-primary); }
}

@keyframes alternate-colors {
  0% { border-color: var(--neon-primary); box-shadow: 0 0 10px var(--neon-primary), 0 0 20px var(--neon-primary); }
  100% { border-color: var(--neon-secondary); box-shadow: 0 0 10px var(--neon-secondary), 0 0 20px var(--neon-secondary); }
}

@keyframes gradient-flow {
  0% { background-position: 0% 50%; box-shadow: 0 0 10px #ff0000, 0 0 20px #ff8000; }
  50% { background-position: 100% 50%; box-shadow: 0 0 10px #00ffff, 0 0 20px #0000ff; }
  100% { background-position: 0% 50%; box-shadow: 0 0 10px #ff0000, 0 0 20px #ff8000; }
}

@keyframes random-glow {
  0% { border-color: #ff00ff; box-shadow: 0 0 20px #ff00ff; }
  20% { border-color: #00ffff; box-shadow: 0 0 20px #00ffff; }
  40% { border-color: #ffff00; box-shadow: 0 0 20px #ffff00; }
  60% { border-color: #00ff00; box-shadow: 0 0 20px #00ff00; }
  80% { border-color: #ff0000; box-shadow: 0 0 20px #ff0000; }
  100% { border-color: #ff00ff; box-shadow: 0 0 20px #ff00ff; }
}

@keyframes theme-colors {
  0%, 100% {
    border-color: var(--neon-primary);
    box-shadow:
      0 0 10px var(--neon-primary),
      0 0 20px var(--neon-primary);
  }
  33% {
    border-color: var(--neon-secondary);
    box-shadow:
      0 0 10px var(--neon-secondary),
      0 0 20px var(--neon-secondary);
  }
  66% {
    border-color: var(--neon-accent);
    box-shadow:
      0 0 10px var(--neon-accent),
      0 0 20px var(--neon-accent);
  }
}

@keyframes neon-flicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% { opacity: 1; box-shadow: 0 0 10px currentColor, 0 0 20px currentColor, 0 0 30px currentColor, inset 0 0 15px currentColor; }
  20%, 24%, 55% { opacity: 0.8; box-shadow: 0 0 5px currentColor, 0 0 10px currentColor, 0 0 15px currentColor, inset 0 0 10px currentColor; }
}

@keyframes pulse-glow {
  from { box-shadow: 0 0 5px currentColor, 0 0 10px currentColor; }
  to { box-shadow: 0 0 15px currentColor, 0 0 30px currentColor, 0 0 45px currentColor; }
}

@keyframes text-glow-flow {
  0% { text-shadow: 0 0 5px var(--neon-primary), 0 0 10px var(--neon-primary), 0 0 15px var(--neon-primary); color: #ffffff; }
  50% { text-shadow: 0 0 5px var(--neon-secondary), 0 0 10px var(--neon-secondary), 0 0 15px var(--neon-secondary); color: #ffffff; }
  100% { text-shadow: 0 0 5px var(--neon-accent), 0 0 10px var(--neon-accent), 0 0 15px var(--neon-accent); color: #ffffff; }
}

/* Marquee Section */
.marquee-section {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
  color: #ffffff;
  overflow: hidden;
  border-bottom: 2px solid;
  animation: theme-colors 4s ease-in-out infinite;
  box-shadow:
    0 0 10px var(--neon-primary),
    0 0 20px var(--neon-primary),
    0 0 30px var(--neon-primary),
    inset 0 0 20px rgba(255, 255, 0, 0.1);
  z-index: 1001;
  height: 45px; /* Fixed height for marquee */
}

.marquee-container {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 5px 20px;
  height: 100%;
  box-sizing: border-box;
}

.marquee-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  z-index: 2;
  position: relative;
}

.marquee-icon-emoji {
  font-size: 20px;
  display: inline-block;
  animation: marquee-pulse 2s ease-in-out infinite, text-glow-flow 3s ease-in-out infinite alternate;
  text-shadow:
    0 0 5px var(--neon-primary),
    0 0 10px var(--neon-primary),
    0 0 15px var(--neon-primary);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

@keyframes marquee-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0.9; }
}

.marquee-wrapper {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.marquee-content {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  animation: marquee-scroll 30s linear infinite;
  gap: 30px;
  height: 100%;
}

.marquee-text {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  text-decoration: none;
  text-shadow:
    0 0 5px var(--neon-primary),
    0 0 10px var(--neon-primary),
    0 0 15px var(--neon-primary);
  line-height: 1.5;
  display: inline-block;
  vertical-align: middle;
  animation: text-glow-flow 3s ease-in-out infinite alternate;
  cursor: pointer;
  transition: all 0.3s ease;
}

.marquee-text:hover {
  text-shadow:
    0 0 10px var(--neon-primary),
    0 0 20px var(--neon-primary),
    0 0 30px var(--neon-primary),
    0 0 40px var(--neon-primary);
  transform: scale(1.05);
  color: #ffffff;
}

.marquee-separator {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.6);
  margin: 0 15px;
  text-shadow:
    0 0 3px var(--neon-primary),
    0 0 6px var(--neon-primary);
}

@keyframes marquee-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Header Section */
.site-header {
  position: fixed;
  top: 45px; /* Marquee height */
  left: 0;
  width: 100%;
  z-index: 1000;
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.site-header .header-top {
  background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
  border-bottom: 2px solid;
  animation: theme-colors 4s ease-in-out infinite;
  box-shadow:
    0 0 10px var(--neon-header-glow),
    0 0 20px var(--neon-header-glow),
    0 0 30px var(--neon-header-glow),
    inset 0 0 20px rgba(255, 255, 0, 0.1);
  min-height: 60px;
  display: flex;
  align-items: center;
  padding: 5px 0;
}

.site-header .header-container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  box-sizing: border-box;
}

.logo {
  color: var(--primary-color);
  font-size: 24px;
  font-weight: bold;
  text-decoration: none;
  padding: 5px 0;
  /* LOGO does NOT use neon effects */
}

.logo img {
  display: block;
  max-width: 100%;
  height: auto;
  max-height: 40px;
}

.desktop-nav-buttons {
  display: flex;
  gap: 12px;
}

.mobile-nav-buttons {
  display: none; /* Hidden on desktop */
}

.btn {
  position: relative;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
  padding: 12px 25px;
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  border: 2px solid;
  animation: theme-colors 4s ease-in-out infinite;
  text-shadow:
    0 0 5px #ffffff,
    0 0 10px var(--neon-btn-glow);
  transition: all 0.3s ease;
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
}

.btn.neon-pulse {
  animation: pulse-glow 2s ease-in-out infinite alternate, theme-colors 4s ease-in-out infinite;
}

.btn.alternate-glow {
  animation: alternate-colors 2s ease-in-out infinite alternate, theme-colors 4s ease-in-out infinite;
}

.btn:hover {
  animation-duration: 2s;
  transform: translateY(-2px);
  box-shadow:
    0 0 15px var(--neon-primary),
    0 0 30px var(--neon-primary),
    0 0 45px var(--neon-primary),
    inset 0 0 15px rgba(255, 255, 255, 0.3);
}

.main-nav {
  background: linear-gradient(135deg, #0f3460, #16213e, #1a1a2e);
  border-top: 2px solid;
  border-bottom: 2px solid;
  animation: rainbow-border 4s linear infinite;
  box-shadow:
    0 0 10px var(--neon-nav-glow),
    0 0 20px var(--neon-nav-glow),
    0 0 30px var(--neon-nav-glow),
    inset 0 0 20px rgba(255, 0, 0, 0.1);
  min-height: 50px;
  display: flex;
  align-items: center;
}

.main-nav .nav-container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 0 20px;
  box-sizing: border-box;
  flex-wrap: wrap;
}

.nav-link {
  color: #ffffff;
  text-decoration: none;
  padding: 10px 15px;
  font-size: 16px;
  font-weight: 500;
  transition: color 0.3s, background-color 0.3s;
  white-space: nowrap;
  /* Nav links do NOT use neon effects */
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
}

.hamburger-menu {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  position: relative;
  z-index: 1002;
  width: 40px;
  height: 40px;
  box-sizing: border-box;
}

.hamburger-icon {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--neon-btn-glow);
  border-radius: 2px;
  position: relative;
  transition: background-color 0.3s;
  box-shadow:
    0 0 5px var(--neon-btn-glow),
    0 0 10px var(--neon-btn-glow);
}

.hamburger-icon::before, .hamburger-icon::after {
  content: '';
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--neon-btn-glow);
  border-radius: 2px;
  position: absolute;
  left: 0;
  transition: transform 0.3s, top 0.3s, background-color 0.3s;
  box-shadow:
    0 0 5px var(--neon-btn-glow),
    0 0 10px var(--neon-btn-glow);
}

.hamburger-icon::before { top: -8px; }
.hamburger-icon::after { top: 8px; }

.hamburger-menu.active .hamburger-icon {
  background-color: transparent;
}

.hamburger-menu.active .hamburger-icon::before {
  transform: rotate(45deg);
  top: 0;
}

.hamburger-menu.active .hamburger-icon::after {
  transform: rotate(-45deg);
  top: 0;
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 999;
  backdrop-filter: blur(5px);
}

/* Footer Section */
.site-footer {
  background-color: #1A1A1A;
  color: #cccccc;
  padding: 40px 0 20px 0;
  font-size: 14px;
  line-height: 1.6;
  /* Footer does NOT use neon effects */
}

.site-footer a {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.3s;
}

.site-footer a:hover {
  color: var(--primary-color);
}

.site-footer h4 {
  color: var(--primary-color);
  font-size: 18px;
  margin-bottom: 15px;
  font-weight: bold;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer ul li {
  margin-bottom: 8px;
}

.footer-top {
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 30px;
}

.footer-grid-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 30px;
  padding: 0 20px;
}

.footer-logo {
  color: var(--primary-color);
  font-size: 26px;
  font-weight: bold;
  text-decoration: none;
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  color: #999999;
  word-wrap: break-word;
  overflow-wrap: break-word;
  line-height: 1.6;
}

.payment-icons, .game-providers-icons, .social-media-icons {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.payment-icons img, .game-providers-icons img, .social-media-icons img {
  max-height: 50px;
  height: auto;
  width: auto;
  filter: grayscale(100%) brightness(150%); /* Subtle effect for icons */
  opacity: 0.8;
  transition: opacity 0.3s, filter 0.3s;
}

.payment-icons img:hover, .game-providers-icons img:hover, .social-media-icons img:hover {
  opacity: 1;
  filter: grayscale(0%) brightness(100%);
}

.footer-middle {
  max-width: 1200px;
  margin: 0 auto 30px auto;
  padding: 0 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 30px;
}

.game-providers-section, .social-media-section {
  margin-bottom: 20px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-bottom p {
  margin-bottom: 15px;
  color: #999999;
}

.footer-legal-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
}

.footer-legal-nav li a {
  color: #cccccc;
  font-size: 13px;
}

.footer-legal-nav li a:hover {
  color: var(--primary-color);
}

/* Mobile Responsive Styles */
@media (max-width: 768px) {
  .marquee-section {
    height: 40px; /* Adjust marquee height for mobile */
  }
  .marquee-container {
    padding: 0 10px;
    gap: 10px;
  }
  .marquee-icon {
    width: 25px;
    height: 25px;
  }
  .marquee-icon-emoji {
    font-size: 16px;
  }
  .marquee-text, .marquee-separator {
    font-size: 13px;
  }
  .marquee-content {
    gap: 20px;
    animation-duration: 25s;
  }

  .site-header {
    top: 40px; /* Marquee height for mobile */
  }

  .site-header .header-top {
    min-height: 50px;
    padding: 0;
  }

  .site-header .header-container {
    padding: 0 15px;
    justify-content: flex-start;
    position: relative; /* For absolute logo centering if needed */
  }

  .hamburger-menu {
    display: block;
    order: 1;
    margin-right: auto; /* Push logo to center */
  }

  .logo {
    order: 2;
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 20px;
    max-width: calc(100% - 60px); /* Account for hamburger width */
  }

  .logo img {
    max-height: 35px !important;
  }

  .desktop-nav-buttons {
    display: none; /* Hide desktop buttons on mobile */
  }

  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons */
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 10px 15px;
    gap: 10px;
    justify-content: center;
    flex-wrap: nowrap; /* Ensure buttons stay on one line */
    background: linear-gradient(135deg, #16213e, #0f3460);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow:
      0 2px 5px rgba(0, 0, 0, 0.3),
      inset 0 0 10px rgba(255, 255, 255, 0.05);
  }

  .mobile-nav-buttons .btn {
    flex: 1;
    min-width: 0;
    max-width: calc(50% - 5px); /* 50% width minus half of gap */
    padding: 8px 12px;
    font-size: 13px;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
    text-align: center;
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    flex-direction: column;
    position: fixed;
    top: var(--header-offset); /* Below the fixed header + mobile buttons */
    left: 0;
    width: 250px;
    height: calc(100% - var(--header-offset));
    background: linear-gradient(180deg, #1a1a2e, #0a0a0a);
    box-shadow: 5px 0 15px rgba(0, 0, 0, 0.5);
    transform: translateX(-100%); /* Off-screen by default */
    transition: transform 0.3s ease-in-out;
    z-index: 1000;
    overflow-y: auto;
    border: none; /* Remove border for mobile menu */
    animation: none; /* No neon animation for mobile menu */
  }

  .main-nav.active {
    display: flex;
    transform: translateX(0);
  }

  .main-nav .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    width: 100%;
    max-width: none; /* Remove max-width for mobile */
  }

  .nav-link {
    width: 100%;
    padding: 12px 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 15px;
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .mobile-menu-overlay.active {
    display: block;
  }

  .footer-grid-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-bottom {
    text-align: center;
  }

  .footer-legal-nav {
    flex-direction: column;
    gap: 8px;
  }

  .footer-middle {
    padding: 0 15px;
  }

  .game-providers-section, .social-media-section {
    text-align: center;
  }

  .game-providers-icons, .social-media-icons {
    justify-content: center;
  }

  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}
/* 移动端内容区防溢出（系统追加，请勿删除） */
@media (max-width: 768px) {
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}