body {
  background: #000 !important;
  color: #fff;
}
.x-theme-neon-frame {
  position: fixed;
  z-index: 9999;
  pointer-events: none;
  top: 0; left: 0; right: 0; bottom: 0;
  border: 8px solid transparent;
  border-radius: 32px;
  box-sizing: border-box;
  animation: x-theme-neon-border 6s linear infinite;
}
@keyframes x-theme-neon-border {
  0%   { box-shadow: 0 0 48px 12px #00fff7, 0 0 0 0 #ff00c8, 0 0 0 0 #fff700; }
  25%  { box-shadow: 0 0 48px 12px #ff00c8, 0 0 0 0 #fff700, 0 0 0 0 #00fff7; }
  50%  { box-shadow: 0 0 48px 12px #fff700, 0 0 0 0 #00fff7, 0 0 0 0 #ff00c8; }
  75%  { box-shadow: 0 0 48px 12px #00fff7, 0 0 0 0 #ff00c8, 0 0 0 0 #fff700; }
  100% { box-shadow: 0 0 48px 12px #ff00c8, 0 0 0 0 #fff700, 0 0 0 0 #00fff7; }
}
.x-theme-neon-btn {
  background: linear-gradient(90deg,#00fff7,#ff00c8,#fff700);
  color: #fff;
  border: none;
  font-size: 1.25em;
  font-weight: bold;
  padding: 12px 32px;
  border-radius: 16px;
  box-shadow: 0 0 16px 4px #00fff7, 0 0 8px 2px #ff00c8;
  transition: transform .1s, box-shadow .3s;
  cursor: pointer;
}
.x-theme-neon-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 0 32px 8px #fff700, 0 0 16px 4px #ff00c8;
}
.x-theme-neon-icon {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 0 7px #ff00c8) drop-shadow(0 0 7px #00fff7);
}
.x-theme-neon-modal {
  background: #000;
  border: 4px solid #00fff7;
  box-shadow: 0 0 32px 8px #ff00c8;
  border-radius: 24px;
  padding: 24px;
  color: #fff;
}
.x-theme-welcome-glow {
  animation: x-theme-glow 2s infinite alternate;
  text-shadow: 0 0 32px #fff700, 0 0 16px #ff00c8;
}
@keyframes x-theme-glow {
  0% { text-shadow: 0 0 16px #00fff7; }
  100% { text-shadow: 0 0 32px #ff00c8; }
}