.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 50px;
  background-color: rgba(0, 100, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  z-index: 1000;
  overflow: visible;
}

body {
  padding-top: 50px;
}

.icon {
  position: relative;
  display: inline-block;
}

.icon img {
  height: 32px;
  cursor: pointer;
  transition: transform 0.3s ease, filter 0.3s ease;
}

/* Hover effect */
.icon img:hover {
  transform: scale(1.1);
  filter: drop-shadow(0 0 6px #00ff99);
}

/* Tooltip */
.icon::after {
  content: attr(data-tooltip);
  position: absolute;
  top: 45px;
  left: 50%;
  transform: translateX(-50%) translateY(5px);
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 1200;
}

/* Tooltip arrow */
.icon::before {
  content: "";
  position: absolute;
  top: 38px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px;
  border-style: solid;
  border-color: rgba(0, 0, 0, 0.85) transparent transparent transparent;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1199;
}

.icon:hover::after,
.icon:hover::before {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.top-bar {
  opacity: 0.4;
  transition: opacity 0.4s ease;
}

.top-bar:hover {
  opacity: 1;
}

.top-bar.visible {
  opacity: 1;
}