:root {
  --primary-color: #1A237E;
  --secondary-color: #FFD700;
  --accent-color: #FF6600;

  --neon-primary: var(--primary-color);
  --neon-secondary: var(--secondary-color);
  --neon-accent: var(--accent-color);

  --header-bg-dark: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
  --nav-bg-dark: linear-gradient(135deg, #16213e, #0f3460, #1a1a2e);

  --neon-yellow: #FFFF00;
  --neon-red: #FF0000;
  --neon-orange: #FF6600;
  --neon-pink: #FF1493;
  --neon-blue: #00FFFF;
}

/* Base Styles */
body {
  margin: 0;
  font-family: 'Arial', sans-serif;
  background-color: #000;
  color: #fff;
  line-height: 1.6;
  padding-top: 110px; /* Adjust for fixed header height (header-top + main-nav) */
}

body.no-scroll {
  overflow: hidden;
}

/* 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, #ff00ff),
      0 0 20px var(--neon-primary, #ff00ff);
  }
  100% {
    filter: hue-rotate(360deg);
    box-shadow:
      0 0 10px var(--neon-primary, #ff00ff),
      0 0 20px var(--neon-primary, #ff00ff);
  }
}

@keyframes alternate-colors {
  0% {
    border-color: var(--neon-primary, #ff00ff);
    box-shadow:
      0 0 10px var(--neon-primary, #ff00ff),
      0 0 20px var(--neon-primary, #ff00ff);
  }
  100% {
    border-color: var(--neon-secondary, #00ffff);
    box-shadow:
      0 0 10px var(--neon-secondary, #00ffff),
      0 0 20px var(--neon-secondary, #00ffff);
  }
}

@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 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;
  }
}

/* Header Styles - Desktop First */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  min-height: 110px;
  display: flex;
  flex-direction: column;
}

.header-container, .nav-container, .footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
  box-sizing: border-box;
}

.header-top {
  background: var(--header-bg-dark);
  border-bottom: 2px solid;
  padding: 10px 0;
  animation: theme-colors 4s ease-in-out infinite; /* Dynamic border color */
}

.header-top .header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 2.5em;
  font-weight: bold;
  color: var(--neon-primary);
  text-decoration: none;
  white-space: nowrap;
  animation: text-glow-flow 3s ease-in-out infinite alternate, neon-flicker 2s infinite alternate;
  text-shadow: 0 0 5px var(--neon-primary), 0 0 10px var(--neon-primary), 0 0 15px var(--neon-primary);
}

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

.btn {
  position: relative;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
  padding: 10px 25px;
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  border: 2px solid;
  animation: theme-colors 4s ease-in-out infinite; /* Dynamic border color */
  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);
}

.main-nav {
  background: var(--nav-bg-dark);
  border-top: 2px solid;
  border-bottom: 2px solid;
  padding: 8px 0;
  animation: rainbow-border 3s linear infinite; /* Different dynamic border color */
  display: flex; /* Desktop default: visible */
  flex-direction: row; /* Desktop default: horizontal */
  position: static; /* Desktop default: static */
  width: 100%;
  box-sizing: border-box;
}

.main-nav .nav-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 25px;
}

.nav-link {
  color: #fff;
  text-decoration: none;
  font-size: 1.1em;
  padding: 5px 0;
  transition: color 0.3s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--neon-secondary);
  text-shadow: 0 0 8px var(--neon-secondary);
}

.hamburger-menu {
  display: none; /* Hidden on desktop */
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
  position: relative;
  width: 40px; /* Fixed width for hamburger */
  height: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  transition: all 0.3s ease;
}

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--neon-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  box-shadow: 0 0 5px var(--neon-primary), 0 0 10px var(--neon-primary);
}

.hamburger-menu.active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.hamburger-menu.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

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

.mobile-menu-overlay {
  display: none; /* Hidden on desktop */
}

/* Footer Styles */
.site-footer {
  background-color: #1a1a2e;
  color: #ddd;
  padding: 40px 0 20px;
  font-size: 0.9em;
}

.footer-content {
  margin-bottom: 30px;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1.2em;
  margin-bottom: 15px;
}

.footer-logo {
  font-size: 2em;
  font-weight: bold;
  color: var(--neon-secondary);
  text-decoration: none;
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  word-wrap: break-word;
  overflow-wrap: break-word;
  line-height: 1.6;
  margin-bottom: 20px;
}

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

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #ddd;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.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%) contrast(100%); /* Example filter for consistent look */
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

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

.footer-middle-sections {
  margin-bottom: 30px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.game-providers-section, .social-media-section {
  width: 100%;
  padding: 15px 20px;
  background-color: #2a2a4a;
  border-radius: 8px;
  box-sizing: border-box;
}

.game-providers-section h4, .social-media-section h4 {
  text-align: center;
  margin-bottom: 15px;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 20px;
  text-align: center;
}

.copyright {
  color: #aaa;
  margin: 0;
}

/* Responsive Styles - Mobile First Overrides */
@media (max-width: 768px) {
  body {
    padding-top: 130px; /* Adjust for mobile fixed header + button area */
  }

  .header-container, .nav-container, .footer-container {
    padding: 0 15px;
    max-width: none; /* Mobile containers take full width */
  }

  .site-header {
    min-height: auto;
    flex-direction: column;
  }

  .header-top .header-container {
    justify-content: space-between;
    padding-top: 10px;
    padding-bottom: 10px;
    position: relative; /* For absolute positioning of logo */
  }

  .hamburger-menu {
    display: flex; /* Visible on mobile */
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
  }

  .logo {
    font-size: 2em;
    position: absolute;
    left: 50%;
    transform: translateX(-50%) translateY(0); /* Adjust for absolute positioning */
  }

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

  .mobile-buttons-area {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 10px 15px;
    background: var(--header-bg-dark);
    border-top: 1px solid;
    border-bottom: 1px solid;
    animation: theme-colors 4s ease-in-out infinite;
    box-shadow: 0 0 5px currentColor;
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    flex-direction: column; /* Vertical for mobile */
    position: fixed;
    top: 0;
    left: 0;
    width: 70%; /* Adjust menu width */
    max-width: 300px;
    height: 100vh;
    background: linear-gradient(180deg, #0a0a0a, #1a1a2e, #16213e);
    padding-top: 80px; /* Space for fixed elements above */
    transform: translateX(-100%); /* Slide out to the left */
    transition: transform 0.3s ease-out;
    box-shadow: 5px 0 15px rgba(0, 255, 255, 0.5);
    border-right: 2px solid var(--neon-blue);
  }

  .main-nav.active {
    display: flex; /* Show menu when active */
    transform: translateX(0); /* Slide in */
  }

  .main-nav .nav-container {
    flex-direction: column;
    gap: 15px;
    align-items: flex-start;
    padding: 20px;
  }

  .nav-link {
    font-size: 1.2em;
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }

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

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

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

  .footer-top-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-col ul {
    text-align: center;
  }

  .footer-logo {
    margin-left: auto;
    margin-right: auto;
  }

  .game-providers-section, .social-media-section {
    padding: 15px;
  }
}