:root {
  --primary-color: #0A1931;
  --secondary-color: #FFD700;
  --text-color: #ffffff;
  --accent-color: #E0BBE4;
  --dark-bg: #0a0a0a;
  --dark-bg-light: #1a1a2e;
  --dark-bg-dark: #16213e;

  /* Neon dynamic colors */
  --neon-primary: var(--secondary-color); /* Gold */
  --neon-secondary: #FF6600; /* Orange */
  --neon-accent: #FF00FF; /* Magenta */

  --header-offset: 175px; /* Desktop: Marquee(45) + HeaderTop(70) + MainNav(60) = 175px */
}

@media (max-width: 768px) {
  :root {
    --header-offset: 170px; /* Mobile: Marquee(40) + HeaderTop(70) + MobileButtons(60) = 170px */
  }
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding-top: var(--header-offset);
  background-color: var(--primary-color);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Common container styles */
.footer-container, .header-container, .nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

/* Neon dynamic color animations */
@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 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, var(--dark-bg), var(--dark-bg-light), var(--dark-bg-dark));
  color: var(--text-color);
  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, 215, 0, 0.1);
  z-index: 1001;
  height: 45px; /* Chiều cao cố định cho khu vực marquee */
  display: flex;
  align-items: center;
}

.marquee-container {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 0 20px; /* Điều chỉnh padding */
}

.marquee-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px; /* Biểu tượng nhỏ hơn để vừa vặn hơn */
  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;
}

.marquee-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-color);
  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: var(--text-color);
}

.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; /* Chiều cao Marquee */
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--dark-bg);
}

.header-top {
  background: linear-gradient(135deg, var(--dark-bg), var(--dark-bg-light));
  border-bottom: 2px solid;
  animation: theme-colors 4s ease-in-out infinite; /* Màu viền động */
  box-shadow:
    0 0 10px var(--neon-primary),
    0 0 20px var(--neon-primary),
    inset 0 0 10px rgba(255, 215, 0, 0.1);
  padding: 10px 0;
  min-height: 50px;
  display: flex; /* Đảm bảo flex cho hamburger/logo di động */
  align-items: center;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  color: var(--text-color);
  font-size: 24px;
  font-weight: bold;
  text-decoration: none;
  line-height: 1;
  /* KHÔNG CÓ HIỆU ỨNG NEON cho LOGO */
}

.hamburger-menu {
  display: none; /* Ẩn trên máy tính để bàn */
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 22px;
  position: relative;
  z-index: 1002; /* Trên lớp phủ menu di động */
}

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--neon-primary);
  border-radius: 3px;
  transition: all 0.3s ease-in-out;
  /* Hiệu ứng neon cho các đường hamburger */
  box-shadow:
    0 0 5px var(--neon-primary),
    0 0 10px var(--neon-primary);
}

/* Nút điều hướng trên máy tính để bàn */
.desktop-nav-buttons {
  display: flex;
  gap: 10px;
  align-items: center;
}

/* Nút điều hướng di động (ẩn trên máy tính để bàn) */
.mobile-nav-buttons {
  display: none;
}

.main-nav {
  background: linear-gradient(135deg, var(--dark-bg-light), var(--dark-bg-dark));
  border-top: 2px solid;
  border-bottom: 2px solid;
  animation: theme-colors 4s ease-in-out infinite reverse; /* Màu động khác cho nav */
  box-shadow:
    0 0 8px var(--neon-secondary),
    0 0 16px var(--neon-secondary),
    inset 0 0 8px rgba(255, 102, 0, 0.1);
  padding: 10px 0;
  min-height: 40px;
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap; /* Cho phép xuống dòng trên màn hình máy tính để bàn nhỏ hơn */
  gap: 25px;
}

.nav-link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  padding: 5px 0;
  position: relative;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--neon-primary);
}

/* Nút */
.btn {
  position: relative;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
  padding: 10px 20px; /* Điều chỉnh padding */
  color: var(--text-color);
  text-decoration: none;
  border-radius: 5px;
  border: 2px solid;
  animation: theme-colors 4s ease-in-out infinite;
  text-shadow:
    0 0 5px var(--text-color),
    0 0 10px var(--neon-primary);
  transition: all 0.3s ease;
  font-size: 15px; /* Điều chỉnh kích thước font */
  font-weight: bold;
  display: inline-block;
  white-space: nowrap;
}

.btn:hover {
  animation-duration: 2s;
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 0 15px var(--neon-primary),
    0 0 30px var(--neon-primary),
    inset 0 0 15px rgba(255, 215, 0, 0.3);
}

/* Footer Section */
.site-footer {
  background-color: var(--primary-color);
  color: rgba(255, 255, 255, 0.8);
  padding: 40px 0 20px 0;
  font-size: 14px;
}

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

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

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

.footer-col h4 {
  color: var(--secondary-color);
  font-size: 16px;
  margin-bottom: 15px;
  text-transform: uppercase;
}

.footer-logo {
  color: var(--secondary-color);
  font-size: 20px;
  font-weight: bold;
  text-decoration: none;
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  line-height: 1.7;
  word-wrap: break-word;
  overflow-wrap: break-word;
  color: rgba(255, 255, 255, 0.7);
}

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

.footer-nav-col li {
  margin-bottom: 8px;
}

.footer-nav-col a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-nav-col a:hover {
  color: var(--secondary-color);
}

.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;
  filter: brightness(0.8) grayscale(0.2); /* Hiệu ứng tinh tế cho các biểu tượng */
  transition: filter 0.3s ease;
}

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

.footer-bottom-section {
  text-align: center;
  padding-top: 20px;
}

.copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  margin: 0;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .marquee-section {
    height: 40px; /* Chiều cao marquee nhỏ hơn trên di động */
    padding: 0;
  }
  .marquee-container {
    padding: 0 10px;
    gap: 10px;
  }
  .marquee-icon {
    width: 20px;
    height: 20px;
  }
  .marquee-icon-emoji {
    font-size: 14px;
  }
  .marquee-text {
    font-size: 13px;
  }
  .marquee-separator {
    font-size: 13px;
    margin: 0 8px;
  }
  .marquee-content {
    gap: 20px;
    animation-duration: 20s; /* Cuộn nhanh hơn trên di động */
  }

  .site-header {
    top: 40px; /* Chiều cao marquee di động */
  }

  .header-top {
    padding: 10px 0;
    min-height: 50px;
  }
  
  .header-container {
    padding: 0 15px;
    width: 100%;
    max-width: none; /* Quan trọng cho chiều rộng đầy đủ trên di động */
    justify-content: flex-start; /* Căn chỉnh hamburger về phía đầu */
  }

  .hamburger-menu {
    display: flex;
    margin-right: auto; /* Đẩy logo vào giữa */
    position: relative; /* Cho z-index */
    z-index: 1002;
  }

  .hamburger-menu.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

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

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

  .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 20px;
    margin-left: -30px; /* Bù lại margin của hamburger */
  }

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

  .mobile-nav-buttons {
    display: flex !important; /* Luôn hiển thị trên di động */
    justify-content: center;
    gap: 10px;
    padding: 10px 15px;
    width: 100%;
    box-sizing: border-box;
    background: linear-gradient(135deg, var(--dark-bg-light), var(--dark-bg-dark));
    border-bottom: 2px solid;
    animation: theme-colors 4s ease-in-out infinite reverse; /* Màu viền động */
    box-shadow:
      0 0 8px var(--neon-secondary),
      0 0 16px var(--neon-secondary),
      inset 0 0 8px rgba(255, 102, 0, 0.1);
    flex-wrap: nowrap; /* Đảm bảo các nút nằm trên một dòng */
  }

  .mobile-nav-buttons .btn {
    flex: 1;
    min-width: 0;
    max-width: calc(50% - 5px); /* Hai nút với khoảng cách 10px */
    padding: 8px 12px;
    font-size: 13px;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .main-nav {
    display: none; /* Mặc định ẩn, hiển thị qua JS */
    flex-direction: column;
    position: fixed;
    top: var(--header-offset); /* Dưới marquee và các nút di động */
    left: 0;
    width: 80%;
    max-width: 300px;
    height: calc(100% - var(--header-offset));
    background: linear-gradient(135deg, var(--dark-bg-dark), var(--primary-color));
    overflow-y: auto;
    transform: translateX(-100%); /* Trượt ra khỏi màn hình */
    transition: transform 0.3s ease-in-out;
    border-right: 2px solid;
    animation: theme-colors 4s ease-in-out infinite;
    box-shadow:
      5px 0 15px rgba(0, 0, 0, 0.5),
      inset 0 0 10px rgba(255, 215, 0, 0.1);
    z-index: 1000;
  }

  .main-nav.active {
    display: flex; /* Hiển thị khi hoạt động */
    transform: translateX(0);
  }

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 15px;
    width: 100%;
    max-width: none; /* Quan trọng cho chiều rộng đầy đủ trên di động */
  }

  .nav-link {
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 16px;
  }
  .nav-link:last-child {
    border-bottom: none;
  }

  .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-in-out;
    opacity: 0;
  }

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

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

  .footer-col {
    text-align: center;
  }
  .footer-col ul {
    text-align: center;
  }
  .footer-col h4 {
    margin-bottom: 10px;
  }
  .footer-logo {
    margin-bottom: 10px;
  }

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

  .payment-icons, .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;
  }
}

/* Body no-scroll for mobile menu */
body.no-scroll {
  overflow: 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;
  }
}