.float-marquiz-btn {
  position: fixed;
  left: 0;
  top: 50%;
  z-index: 9999;
  background: rgba(26, 20, 10, 0.85);
  color: #c9a84c;
  font-family: 'Georgia', serif;
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 16px 14px;
  border-radius: 6px 0 0 6px;
  border-left: 1px solid #c9a84c;
  border-top: 1px solid #c9a84c;
  border-bottom: 1px solid #c9a84c;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  display: block;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: translateY(-50%) rotate(180deg);
  backdrop-filter: blur(4px);
  animation: marquiz-pulse 2.5s ease-in-out infinite;
}
.float-marquiz-btn:hover {
  background: rgba(26, 20, 10, 0.95);
  color: #e0bc6a;
  border-color: #e0bc6a;
  box-shadow: 0 0 25px rgba(201,168,76,0.6), 0 0 50px rgba(201,168,76,0.2);
  animation: none;
}
@keyframes marquiz-pulse {
  0%   { box-shadow: 2px 0 10px rgba(201,168,76,0.2); border-color: #c9a84c; }
  50%  { box-shadow: 4px 0 22px rgba(201,168,76,0.7), 0 0 40px rgba(201,168,76,0.3); border-color: #e0bc6a; }
  100% { box-shadow: 2px 0 10px rgba(201,168,76,0.2); border-color: #c9a84c; }
}