/* ===== LIGHTBOX ===== */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.96);
  display: flex;
  align-items: center;
  justify-content: center;
  padding:
    max(8px, env(safe-area-inset-top))
    max(8px, env(safe-area-inset-right))
    max(8px, env(safe-area-inset-bottom))
    max(8px, env(safe-area-inset-left));
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  z-index: 9999;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox__stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(96vw, 1800px);
  height: min(94dvh, 1200px);
  margin: 0 auto;
}

.lightbox__img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 12px 44px rgba(0, 0, 0, 0.42);
  user-select: none;
  -webkit-user-drag: none;
}

/* Портретные фото на десктопе */
.lightbox.is-portrait .lightbox__stage {
  width: min(92vw, 1400px);
  height: min(96dvh, 1400px);
}

/* Горизонтальные фото */
.lightbox.is-landscape .lightbox__stage {
  width: min(96vw, 1800px);
  height: min(92dvh, 1100px);
}

/* Управляющие элементы */
.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  border: none;
  background: rgba(0, 0, 0, 0.24);
  color: #fff;
  cursor: pointer;
  line-height: 1;
  opacity: 0.95;
  transition: opacity 0.2s ease, background 0.2s ease, transform 0.2s ease;
  z-index: 3;
  -webkit-tap-highlight-color: transparent;
  backdrop-filter: blur(6px);
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.14);
}

.lightbox__close {
  top: max(10px, env(safe-area-inset-top));
  right: max(10px, env(safe-area-inset-right));
  width: 52px;
  height: 52px;
  font-size: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.lightbox__prev,
.lightbox__next {
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  font-size: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.lightbox__prev {
  left: max(10px, env(safe-area-inset-left));
}

.lightbox__next {
  right: max(10px, env(safe-area-inset-right));
}

/* Счётчик */
.lightbox__counter {
  position: absolute;
  left: 50%;
  bottom: max(12px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  line-height: 1;
  padding: 8px 10px;
  background: rgba(0, 0, 0, 0.34);
  border-radius: 999px;
  white-space: nowrap;
  z-index: 3;
}

/* Лоадер */
.lightbox__loader {
  position: absolute;
  width: 42px;
  height: 42px;
  border: 2px solid rgba(255, 255, 255, 0.22);
  border-top-color: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  animation: lightbox-spin 0.8s linear infinite;
}

.lightbox.is-loading .lightbox__loader {
  opacity: 1;
}

.lightbox.is-loading .lightbox__img {
  opacity: 0.35;
}

/* ====================================
   Блокировка прокрутки страницы
   ==================================== */
body.lightbox-open {
  overflow: hidden;
  overscroll-behavior: contain;
}

/* Анимация лоадера */
@keyframes lightbox-spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- Адаптив ---------- */
@media (max-width: 1024px) {
  .lightbox__stage {
    width: 98vw;
    height: 92dvh;
  }
  .lightbox.is-portrait .lightbox__stage {
    width: 96vw;
    height: 94dvh;
  }
}

/* ---------- Мобильные ---------- */
@media (max-width: 768px) {
  .lightbox {
    padding: 0; /* убираем рамки, чтобы фото заполняло экран */
  }

  .lightbox__stage,
  .lightbox.is-portrait .lightbox__stage,
  .lightbox.is-landscape .lightbox__stage {
    width: 100vw;
    height: 100dvh;
    max-width: none;
    max-height: none;
  }

  .lightbox__img {
    width: 100%;
    height: 100%;
    max-width: 100vw;
    max-height: 100dvh;
    object-fit: contain; /* full screen без обрезки */
  }

  .lightbox__close {
    top: max(8px, env(safe-area-inset-top));
    right: max(8px, env(safe-area-inset-right));
    width: 44px;
    height: 44px;
    font-size: 30px;
  }

  .lightbox__prev,
  .lightbox__next {
    width: 44px;
    height: 44px;
    font-size: 24px;
    top: 50%;
    transform: translateY(-50%);
  }

  .lightbox__prev {
    left: max(8px, env(safe-area-inset-left));
  }

  .lightbox__next {
    right: max(8px, env(safe-area-inset-right));
  }

  .lightbox__counter {
    bottom: max(10px, env(safe-area-inset-bottom));
    font-size: 12px;
    padding: 6px 9px;
  }
}

/* Очень узкие экраны */
@media (max-width: 480px) {
  .lightbox__prev,
  .lightbox__next {
    font-size: 22px;
  }
  .lightbox__close {
    font-size: 28px;
  }
}

/* При сенсорном управлении элементы всегда видны */
@media (hover: none) and (pointer: coarse) {
  .lightbox__close,
  .lightbox__prev,
  .lightbox__next {
    opacity: 1;
  }
}

.lightbox__close:focus-visible,
.lightbox__prev:focus-visible,
.lightbox__next:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.9);
  outline-offset: 2px;
}