:root {
  --site-primary-color: #FFD700; /* Gold */
  --site-secondary-color: #DC143C; /* Crimson */
  --neon-primary: var(--site-primary-color); /* Intelligent primary neon color */
  --neon-secondary: var(--site-secondary-color); /* Intelligent secondary neon color */
  --neon-accent: #FF69B4; /* Vibrant pink accent for dynamic effects */
  --dark-bg-1: #0a0a0a;
  --dark-bg-2: #1a1a2e;
  --dark-bg-3: #16213e;
  --header-top-height: 60px; /* Approx height of header-top */
  --main-nav-height: 50px; /* Approx height of main-nav */
  --mobile-buttons-height: 50px; /* Approx height of mobile-nav-buttons */
  --header-height-desktop: calc(var(--header-top-height) + var(--main-nav-height));
  --header-height-mobile: calc(var(--header-top-height) + var(--mobile-buttons-height));
}

/* Base Styles */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #e0e0e0;
  background-color: #000;
  line-height: 1.6;
}

/* Ensure main content is not hidden by fixed header */
body.has-fixed-header {
  padding-top: var(--header-height-desktop);
}

/* Animations for Neon 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), inset 0 0 10px rgba(255, 215, 0, 0.3);
  }
  33% {
    border-color: var(--neon-secondary);
    box-shadow: 0 0 10px var(--neon-secondary), 0 0 20px var(--neon-secondary), inset 0 0 10px rgba(220, 20, 60, 0.3);
  }
  66% {
    border-color: var(--neon-accent);
    box-shadow: 0 0 10px var(--neon-accent), 0 0 20px var(--neon-accent), inset 0 0 10px rgba(255, 105, 180, 0.3);
  }
}

@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 led-blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0.3;
  }
}

@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;
  }
}

/* Generic Neon Glow Styles */
.neon-glow {
  box-shadow: 0 0 5px currentColor, 0 0 10px currentColor, 0 0 15px currentColor, 0 0 20px currentColor, inset 0 0 10px rgba(255, 255, 255, 0.1);
}

.neon-tube {
  border: 2px solid;
  animation: neon-flicker 2s infinite alternate, theme-colors 4s linear infinite;
}

.cyber-grid {
  background: linear-gradient(90deg, transparent 95%, currentColor 100%), linear-gradient(180deg, transparent 95%, currentColor 100%);
  background-size: 20px 20px;
  border: 1px solid;
  animation: hue-spin 4s linear infinite;
}

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

.rainbow-flow {
  border: 2px solid transparent;
  animation: rainbow-border 3s linear infinite;
}

.hue-rotate {
  border: 2px solid;
  filter: hue-rotate(0deg);
  animation: hue-spin 4s linear infinite;
}

.alternate-glow {
  border: 2px solid;
  animation: alternate-colors 2s ease-in-out infinite alternate;
}

.color-stream {
  position: relative;
  border: 2px solid transparent;
  background: linear-gradient(45deg, #ff0000, #ff8000, #ffff00, #00ff00, #00ffff, #0000ff, #8000ff, #ff0080);
  background-size: 400% 400%;
  animation: gradient-flow 3s ease infinite;
}

.random-colors {
  border: 2px solid;
  animation: random-glow 5s linear infinite;
}

.theme-flow {
  border: 2px solid;
  animation: theme-colors 4s ease-in-out infinite;
}

.led-matrix {
  border: 2px solid;
  box-shadow: 0 0 5px currentColor, 0 0 10px currentColor;
  position: relative;
  animation: random-glow 5s linear infinite;
}

.led-matrix::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: radial-gradient(circle at 0% 0%, currentColor 2px, transparent 3px), radial-gradient(circle at 100% 0%, currentColor 2px, transparent 3px), radial-gradient(circle at 0% 100%, currentColor 2px, transparent 3px), radial-gradient(circle at 100% 100%, currentColor 2px, transparent 3px);
  background-size: 20px 20px;
  animation: led-blink 1s steps(2) infinite;
}

.neon-text-dynamic {
  animation: text-glow-flow 3s ease-in-out infinite alternate;
}

/* Header Styles */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
}

.header-top {
  background: linear-gradient(135deg, var(--dark-bg-1), var(--dark-bg-2), var(--dark-bg-3));
  padding: 15px 0;
  min-height: var(--header-top-height);
  display: flex;
  align-items: center;
  justify-content: center; /* For mobile logo centering */
}

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

.logo {
  font-size: 2.2em;
  font-weight: bold;
  color: var(--neon-primary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 2px;
  white-space: nowrap;
}

.desktop-nav-buttons {
  display: flex;
  gap: 15px;
  align-items: center;
}

.btn {
  position: relative;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
  padding: 12px 25px;
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  text-shadow: 0 0 5px #ffffff, 0 0 10px var(--neon-primary);
  transition: all 0.3s ease;
  white-space: nowrap;
}

.btn:hover {
  animation-duration: 2s; /* hover时加快颜色变化速度 */
  transform: translateY(-2px);
  filter: brightness(1.2);
}

.main-nav {
  background: linear-gradient(135deg, var(--dark-bg-2), var(--dark-bg-3), #0f3460);
  padding: 10px 0;
  min-height: var(--main-nav-height);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.nav-link {
  color: #e0e0e0;
  text-decoration: none;
  padding: 8px 15px;
  font-weight: 500;
  transition: color 0.3s ease, background-color 0.3s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--neon-primary);
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
}

/* Hamburger menu (mobile) */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  position: relative;
  z-index: 1001;
  color: var(--neon-primary);
  animation: theme-colors 4s ease-in-out infinite;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: -10px; /* Adjust to align with container padding */
}

.hamburger-icon {
  display: block;
  width: 25px;
  height: 3px;
  background-color: currentColor;
  position: relative;
  transition: background-color 0.3s ease;
}

.hamburger-icon::before, .hamburger-icon::after {
  content: '';
  display: block;
  width: 25px;
  height: 3px;
  background-color: currentColor;
  position: absolute;
  transition: transform 0.3s ease;
}

.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: translateY(8px) rotate(45deg);
}

.hamburger-menu.active .hamburger-icon::after {
  transform: translateY(-8px) rotate(-45deg);
}

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

.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;
  transition: opacity 0.3s ease;
  opacity: 0;
}

.mobile-menu-overlay.active {
  display: block;
  opacity: 1;
}

/* Footer Styles */
.site-footer {
  background-color: #111;
  color: #ccc;
  padding: 40px 0 20px;
  font-size: 0.9em;
}

.footer-top {
  border-bottom: 1px solid #333;
  padding-bottom: 30px;
  margin-bottom: 30px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1.1em;
  margin-bottom: 15px;
  text-transform: uppercase;
}

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

.footer-col ul li a {
  color: #ccc;
  text-decoration: none;
  margin-bottom: 8px;
  display: block;
}

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

.footer-logo {
  font-size: 1.8em;
  font-weight: bold;
  color: var(--site-primary-color);
  text-decoration: none;
  margin-bottom: 15px;
  display: block;
  text-transform: uppercase;
}

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

.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;
  object-fit: contain;
}

.footer-middle {
  padding-top: 20px;
  padding-bottom: 30px;
  border-bottom: 1px solid #333;
  margin-bottom: 30px;
}

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

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

.copyright {
  margin-bottom: 15px;
  color: #888;
}

.footer-legal-links {
  display: flex;
  justify-content: center;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.footer-legal-links li {
  margin: 0 10px 10px;
}

.footer-legal-links li a {
  color: #888;
  text-decoration: none;
}

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

/* Responsive Styles */
@media (max-width: 768px) {
  body.has-fixed-header {
    padding-top: var(--header-height-mobile);
  }

  .header-container {
    padding: 0 15px;
    max-width: none;
    width: 100%;
    justify-content: space-between; /* Keep hamburger left, logo center */
  }

  .header-top {
    padding: 10px 0;
    min-height: var(--header-top-height);
  }

  .logo {
    order: 2;
    flex-grow: 1;
    text-align: center;
    font-size: 1.8em;
  }

  .desktop-nav-buttons {
    display: none;
  }

  .hamburger-menu {
    display: flex;
    order: 1;
    margin-left: 0;
  }
  
  .main-nav {
    display: none; /* Hidden by default on mobile */
    flex-direction: column;
    position: fixed;
    top: var(--header-height-mobile); /* Adjusted for mobile buttons */
    left: 0;
    width: 80%;
    height: calc(100% - var(--header-height-mobile));
    background: linear-gradient(180deg, var(--dark-bg-3), var(--dark-bg-1));
    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: 999;
    overflow-y: auto;
    padding-top: 20px;
  }

  .main-nav.active {
    display: flex; /* Must set display to show */
    transform: translateX(0);
  }

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 20px;
    max-width: none;
    width: 100%;
  }

  .nav-link {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .mobile-nav-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px;
    width: 100%;
    align-items: center;
    box-sizing: border-box;
    margin-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .mobile-nav-buttons .btn {
    width: 90%;
    text-align: center;
  }

  .mobile-menu-overlay.active {
    display: block;
    opacity: 1;
  }

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

  .footer-col:first-child {
    grid-column: span 2; /* Logo and description take full width */
  }

  .footer-legal-links {
    flex-direction: column;
    align-items: center;
  }

  .footer-legal-links li {
    margin: 5px 0;
  }
}

@media (max-width: 480px) {
  .footer-container {
    grid-template-columns: 1fr;
  }
  .footer-col:first-child {
    grid-column: span 1;
  }
  .logo {
    font-size: 1.5em;
  }
  .btn {
    padding: 10px 20px;
    font-size: 0.9em;
  }
}

/* Utility for no scroll */
body.no-scroll {
  overflow: hidden;
}