.lata-fab{
  --lata-right: 12px;
  --lata-bottom: 12px;
  --lata-rightMobile: 16px;
  --lata-bottomMobile: 16px;
  --lata-zIndex: 99999;

  --lata-size: 56px;
  --lata-sizeMobile: 56px;
  --lata-gap: 12px;
  --lata-labelGap: 12px;

  --lata-labelBg: rgba(0,0,0,.55);
  --lata-labelColor: #fff;
  --lata-labelFont: 18px;
  --lata-labelPadX: 16px;
  --lata-labelPadY: 10px;

  --lata-labelFontMobile: 16px;
  --lata-labelPadXMobile: 14px;
  --lata-labelPadYMobile: 9px;

  --lata-iconColor: #fff;
  --lata-shadow: 0 10px 26px rgba(0,0,0,.4);
  --lata-toggleBg: #FF7000;
  

  position: fixed;
  right: var(--lata-right);
  bottom: calc(var(--lata-bottom) + env(safe-area-inset-bottom, 0px));
  z-index: var(--lata-zIndex);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

.lata-fab__overlay{
  position: fixed;
  top: 0;
  left: 0;
  inset:0;
  background: rgba(0,0,0,0);
  pointer-events: none;
  transition: background .2s ease;
}
.lata-fab[data-open="1"] .lata-fab__overlay{
  background: rgba(0,0,0,.8);
  pointer-events: auto;
}

.lata-fab__stack{
  display: flex;
  flex-direction: column;
  gap: var(--lata-gap);
  align-items: flex-end;
}

.lata-fab__item{
  display: flex;
  align-items: center;
  gap: var(--lata-labelGap);
  text-decoration: none;

  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: transform .5s ease, opacity .5s ease !important;
}
.lata-fab[data-open="1"] .lata-fab__item{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.lata-fab__label{
  background: var(--lata-labelBg);
  color: var(--lata-labelColor);
  padding: var(--lata-labelPadY) var(--lata-labelPadX);
  border-radius: 999px;
  font-size: var(--lata-labelFont);
  line-height: 1;
  white-space: nowrap;
}

.lata-fab__btn{
  width: var(--lata-size);
  height: var(--lata-size);
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: var(--lata-iconColor);
  box-shadow: var(--lata-shadow);
}
.lata-fab__btn img{ display:block; }

.lata-fab__toggle-img{
 width: 40px;
 height: 40px;
 display: block;
}

.lata-fab__toggle{
  z-index: 1;
  width: var(--lata-size);
  height: var(--lata-size);
  border-radius: 999px;
  border: 0;
  background: var(--lata-toggleBg);
  color: var(--lata-iconColor);
  cursor: pointer;
  box-shadow: var(--lata-shadow);
  display: grid;
  place-items: center;
  touch-action: manipulation;
}

.lata-fab__toggle:focus{ outline: 2px solid rgba(255,255,255,.9); outline-offset: 3px; }

.lata-fab__toggle-icon{
  width: 40px;
  height: 40px;
}
.lata-fab[data-open="1"] .lata-fab__toggle-icon{
}

.lata-fab__hint{
  position: absolute;
  right: 72px;
  bottom: 12px;
  background: rgba(0,0,0,.8);
  color: #fff;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 18px;
  line-height: 1;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity .5s ease, transform .5s ease;
}

.lata-fab__hint[data-show="1"]{
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 480px){
  .lata-fab{
    right: var(--lata-rightMobile);
    bottom: calc(var(--lata-bottom) + env(safe-area-inset-bottom, 0px));
  }
  .lata-fab__label{
    font-size: var(--lata-labelFontMobile);
    padding: var(--lata-labelPadYMobile) var(--lata-labelPadXMobile);
  }
  .lata-fab__btn,
  .lata-fab__toggle{
    width: var(--lata-sizeMobile);
    height: var(--lata-sizeMobile);
  }
  .lata-fab__hint{
    font-size: 16px;
    padding: 9px 14px;
  }
}