/* B2B Lightbox: минимализм, без сюрпризов */

:root{
  --b2b-lb-bg: rgba(0,0,0,.96);
  --b2b-lb-ui: rgba(255,255,255,.92);
  --b2b-lb-ui-dim: rgba(255,255,255,.60);
  --b2b-lb-btn-bg: rgba(0,0,0,.35);
  --b2b-lb-btn-bg-hover: rgba(0,0,0,.55);
  --b2b-lb-radius: 12px;
  --b2b-lb-z: 1000000;
}

.b2b-lb {
  position: fixed;
  inset: 0;
  z-index: var(--b2b-lb-z);
  display: none;
}

.b2b-lb.is-open { display: block; }

.b2b-lb__backdrop{
  position: absolute;
  inset: 0;
  background: var(--color-bg);
}

.b2b-lb__stage{
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  /* padding: 16px; */
}

.b2b-lb__imgwrap{
  position: relative;
  max-width: min(96vw, 1400px);
  /* max-height: 88vh; */
  /* width: 100%; */
  width: auto;
  height: 100%;
  display: grid;
  place-items: center;
  touch-action: manipulation;
  will-change: transform;
  /* overflow: hidden; */
  /* border-radius: var(--b2b-lb-radius); */
}
@media (max-width: 768px) {
	.b2b-lb__imgwrap{
	max-width: 100%;
	}
}

.b2b-lb__img{
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  transform-origin: center center;
  will-change: transform;
  user-select: none;
  -webkit-user-drag: none;
  cursor: zoom-in;
  touch-action: manipulation;
	-webkit-touch-callout: none;
}

.b2b-lb.is-zoomed .b2b-lb__img{
  cursor: grab;
}

.b2b-lb.is-zoomed .b2b-lb__img:active{
  cursor: grabbing;
}

.b2b-lb__topbar{
  position: absolute;
  top: max(20px, env(safe-area-inset-top));
  right: max(30px, env(safe-area-inset-right));
  display: flex;
  gap: 0;
  align-items: center;
  padding: 0;
  pointer-events: none;
}

.b2b-lb__btn{
  pointer-events: auto;
  border: 0;
  background: none;
  color: var(--color-title);
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  cursor: pointer;
  /* backdrop-filter: blur(10px); */
}

.b2b-lb__btn:hover{
  background: none;
}

.b2b-lb__btn svg{
  width: 24px;
  height: 24px;
  display: block;
  fill: var(--color-title);
}

.b2b-lb__nav{
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  /* padding: 0 10px; */
}

.b2b-lb__arrow{
  pointer-events: auto;
  border: 0;
  background: none;
  color: var(--color-title);
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  cursor: pointer;
}

.b2b-lb__arrow:hover{
  background: none;
}

.b2b-lb__arrow[disabled]{
  opacity: .25;
  cursor: default;
}

.b2b-lb__caption{
  position: absolute;
  left: max(30px, env(safe-area-inset-left));
  right: max(30px, env(safe-area-inset-right));
  bottom: max(30px, env(safe-area-inset-bottom));
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.4;
  opacity: .92;
  text-wrap: pretty;
  pointer-events: none;
}

.b2b-lb__counter{
  position: absolute;
  left: max(12px, env(safe-area-inset-left));
  top: max(12px, env(safe-area-inset-top));
  color: var(--color-text);
  font-size: 12px;
  pointer-events: none;
  padding: 8px;
}

/* Мобильные нюансы */
@media (max-width: 767px){
  .b2b-lb__imgwrap{ max-height: 82vh; }
  .b2b-lb__arrow{ display: none; }
  .b2b-lb__topbar{
	top: max(10px, env(safe-area-inset-top));
	right: max(10px, env(safe-area-inset-right));
	}
  .b2b-lb__btn{ width: 38px; height: 38px; }
  .b2b-lb__caption{
	position: absolute;
	left: max(16px, env(safe-area-inset-left));
	right: max(16px, env(safe-area-inset-right));
	bottom: max(50px, env(safe-area-inset-bottom));
	font-size: 14px;
	line-height: 1.4;
  }
}

/* Анимация появления/закрытия */
.b2b-lb {
  opacity: 0;
  transition: opacity 120ms ease-out;
}

.b2b-lb.is-open {
  display: block;
}

.b2b-lb.is-visible {
  opacity: 1;
}

.b2b-lb__backdrop{
  opacity: 0;
  background: var(--color-bg);
  transition: opacity 120ms ease-out;
}

.b2b-lb__stage{
  opacity: 0;
  transform: scale(.965);
  transition: transform 140ms cubic-bezier(.2,0,0,1), opacity 100ms ease-out;
}

.b2b-lb.is-visible .b2b-lb__backdrop{
  opacity: 1;
}

.b2b-lb.is-visible .b2b-lb__stage{
  opacity: 1;
  transform: scale(1);
}