/* Case study media lightbox */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px var(--edge-margin) 32px;
  box-sizing: border-box;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 200ms ease,
    visibility 200ms ease;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  border: none;
  padding: 0;
  cursor: pointer;
}

.lightbox__dialog {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 100%;
  /* Room for close above + zoom below within the viewport */
  max-height: calc(100vh - 140px);
  /* Let backdrop receive clicks outside the media */
  pointer-events: none;
}

.lightbox__media-frame {
  position: relative;
  width: fit-content;
  max-width: 100%;
  max-height: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
}

.lightbox__viewport {
  position: relative;
  max-width: 100%;
  max-height: calc(100vh - 180px);
  overflow: hidden;
  border-radius: 16px;
  touch-action: none;
  /* Exact frame size is locked in JS to the fitted image */
}

.lightbox__viewport.is-panning {
  cursor: grabbing;
}

.lightbox__viewport.is-zoomable {
  cursor: grab;
}

.lightbox__media {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - 180px);
  width: auto;
  height: auto;
  object-fit: fill;
  border-radius: 16px;
  transform-origin: center center;
  user-select: none;
  -webkit-user-drag: none;
  will-change: transform;
}

.lightbox__media--video {
  background-color: #000;
}

/* Close — upper right of media, 16px above (Figma) */
.lightbox__close {
  position: absolute;
  top: -56px;
  right: 0;
  width: 40px;
  height: 40px;
  border: none;
  padding: 0;
  border-radius: 50%;
  background-color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: background-color 150ms ease;
}

.lightbox__close:hover,
.lightbox__close:focus-visible {
  background-color: #ECECEC;
  outline: none;
}

.lightbox__close img {
  width: 16px;
  height: 16px;
  display: block;
  pointer-events: none;
}

/* Zoom control — images only */
.lightbox__zoom {
  display: none;
  align-items: center;
  gap: 32px;
  padding: 8px 16px;
  background-color: #ffffff;
  border: 1px solid var(--color-secondary-3);
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}

.lightbox__zoom.is-visible {
  display: flex;
}

.lightbox__zoom-readout {
  display: flex;
  align-items: center;
  gap: 24px;
}

.lightbox__zoom-value {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: var(--font-regular);
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  min-width: 3.2em;
  text-align: left;
}

.lightbox__zoom-steppers {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.lightbox__zoom-btn {
  border: none;
  padding: 0;
  margin: 0;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ba1ae;
  line-height: 0;
}

.lightbox__zoom-btn:hover,
.lightbox__zoom-btn:focus-visible {
  color: var(--color-primary);
  outline: none;
}

.lightbox__zoom-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.lightbox__zoom-btn svg {
  display: block;
}

.lightbox__zoom-divider {
  width: 0;
  height: 27px;
  border-left: 2px solid var(--color-secondary-3);
  border-radius: 1px;
}

.lightbox__zoom-coarse {
  display: flex;
  align-items: center;
  gap: 23px;
}

.lightbox__zoom-btn--minus,
.lightbox__zoom-btn--plus {
  width: 16px;
  height: 16px;
  position: relative;
  color: #9e9e9e;
}

.lightbox__zoom-btn--minus::before,
.lightbox__zoom-btn--plus::before,
.lightbox__zoom-btn--plus::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  background-color: currentColor;
  border-radius: 1px;
  transform: translate(-50%, -50%);
}

.lightbox__zoom-btn--minus::before,
.lightbox__zoom-btn--plus::before {
  width: 16px;
  height: 2px;
}

.lightbox__zoom-btn--plus::after {
  width: 2px;
  height: 16px;
}

/* Page media affordance */
.js-lightbox {
  cursor: pointer;
}

body.lightbox-open {
  overflow: hidden;
}

@media (max-width: 480px) {
  .lightbox {
    padding: 64px var(--edge-margin-mobile) 24px;
  }

  .lightbox__close {
    top: -52px;
    width: 40px;
    height: 40px;
  }

  .lightbox__close img {
    width: 16px;
    height: 16px;
  }

  .lightbox__zoom {
    gap: 20px;
    padding: 6px 12px;
  }

  .lightbox__zoom-readout {
    gap: 16px;
  }

  .lightbox__zoom-value {
    font-size: 16px;
  }

  .lightbox__dialog {
    max-height: calc(100vh - 120px);
    gap: 16px;
  }

  .lightbox__viewport,
  .lightbox__media {
    max-height: calc(100vh - 160px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .lightbox {
    transition: none;
  }
}