/* Floating GitHub button */
.floating-github {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 9999;
}

.floating-github a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #24292e;
  color: #ffffff !important;
  box-shadow: 0 6px 16px rgba(0,0,0,0.2);
  text-decoration: none;
}

.floating-github a:hover {
  background: #2f363d;
}

.floating-github .label {
  position: absolute;
  right: 64px;
  bottom: 8px;
  background: #24292e;
  color: #fff;
  font-size: 13px;
  line-height: 1;
  padding: 8px 10px;
  border-radius: 8px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.16);
  opacity: 0;
  transform: translateX(8px);
  transition: opacity .18s ease, transform .18s ease;
  pointer-events: none;
  white-space: nowrap;
}

.floating-github:hover .label {
  opacity: 1;
  transform: translateX(0);
}