/* Floating bar container */
.zsb-floating-bar {
  position: fixed;
  z-index: 9999;
  display: flex;
  gap: 5px;
  background: rgba(255, 255, 255, 0.95);
  padding: 8px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.zsb-position-left {
  flex-direction: column;
  top: 60%;
  left: 20px;
  transform: translateY(-50%);
}

.zsb-position-right {
  flex-direction: column;
  top: 60%;
  right: 50px;
  transform: translateY(-50%);
}

.zsb-position-bottom {
  position: relative;
  display: flex;
  justify-content: center;
  margin-top: 20px;
  padding: 10px 0;
  border-top: 1px solid #eee;
  border-bottom: 1px solid #eee;
  box-shadow: none;
  border-radius: 0;
  background: none;
}

/* Button styles */
.zsb-btn {
  display: block;
  width: 40px;
  height: 40px;
  padding: 4px;
  border: 1px solid #ddd;
  border-radius: 8px;
  background: #fff;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.zsb-btn img {
  width: 100%;
  height: 100%;
  display: block;
  margin: auto;
  object-fit: contain;
}

.zsb-btn:hover {
  transform: scale(1.1);
  border-color: #3498db;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Tooltips */
.zsb-tooltip {
  position: absolute;
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  pointer-events: none;
  z-index: 99999;
  display: none;
}

/* Responsive: Tablets & Mobiles */
@media (max-width: 768px) {
  .zsb-position-left, 
  .zsb-position-right {
    top: auto !important;
    bottom: max(12px, env(safe-area-inset-bottom));
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%);
    flex-direction: row;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.95);
    padding: 6px 10px;
    gap: 8px;
    width: auto;
    max-width: 95vw;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
  }

  .zsb-position-bottom {
    flex-wrap: wrap;
    gap: 8px;
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.95);
    max-width: 100%;
  }

  .zsb-btn {
    min-width: 48px;
    min-height: 48px;
  }
}

/* Ultra-small devices (e.g. iPhone 5/SE) */
@media (max-width: 400px) {
  .zsb-position-left, 
  .zsb-position-right, 
  .zsb-position-bottom {
    gap: 6px;
    padding: 4px 8px;
  }

  .zsb-btn {
    min-width: 44px;
    min-height: 44px;
  }

  .zsb-btn img {
    width: 30px;
    height: 30px;
  }
}