/* =========================================================
   lightbox.css — shared figure viewer used by /ghgrp/, /hipaa/,
   /darkdata/. Originally inlined per page; extracted here so all
   project landings get identical figure-click behavior.
   Pair with /assets/lightbox.js + the modal HTML snippet on
   each page (see project source for the snippet).
   ========================================================= */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 3vw, 2rem);
  background: rgba(246, 243, 235, 0.96);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.lightbox[aria-hidden="false"] { display: flex; }
.lightbox__stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  max-width: min(92vw, 1600px);
  max-height: 100%;
}
.lightbox__img {
  display: block;
  max-width: min(92vw, 1600px);
  max-height: 82vh;
  width: auto;
  height: auto;
  object-fit: contain;
  background: #F6F3EB;
  box-shadow: 0 14px 48px rgba(14, 14, 14, 0.14);
}
.lightbox__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  width: 100%;
  color: #5E574C;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.825rem;
}
.lightbox__caption { letter-spacing: 0.02em; }
.lightbox__counter {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #0E0E0E;
  font-weight: 500;
  white-space: nowrap;
}
.lightbox__btn {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 1.35rem;
  line-height: 1;
  color: #0E0E0E;
  background: #F6F3EB;
  border: 1px solid rgba(14, 14, 14, 0.14);
  border-radius: 999px;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}
.lightbox__btn:hover {
  background: #A23B2A;
  color: #F6F3EB;
  border-color: #A23B2A;
}
.lightbox__btn:focus-visible {
  outline: 2px solid #A23B2A;
  outline-offset: 3px;
}
.lightbox__close { top: clamp(1rem, 2vw, 1.5rem); right: clamp(1rem, 2vw, 1.5rem); }
.lightbox__prev  { left:  clamp(0.5rem, 2vw, 1.5rem); top: 50%; transform: translateY(-50%); }
.lightbox__next  { right: clamp(0.5rem, 2vw, 1.5rem); top: 50%; transform: translateY(-50%); }
body.lightbox-open { overflow: hidden; }

/* Hide prev/next buttons when there is only one figure on the page
   (single-figure pages like /darkdata/ thesis-figure). */
.lightbox.single-figure .lightbox__prev,
.lightbox.single-figure .lightbox__next,
.lightbox.single-figure .lightbox__counter { display: none; }

/* The figure-entry link itself: ensures a pointer cursor and
   removes the underline from any wrapping link styling. */
.figure-entry {
  display: block;
  text-decoration: none;
  color: inherit;
  border-bottom: 0;
  cursor: zoom-in;
}
.figure-entry:hover { border-bottom: 0; }
.figure-entry:focus-visible {
  outline: 2px solid #A23B2A;
  outline-offset: 4px;
}

@media (max-width: 640px) {
  .lightbox__img { max-height: 68vh; }
  .lightbox__prev, .lightbox__next {
    top: auto;
    bottom: clamp(0.75rem, 3vw, 1.25rem);
    transform: none;
  }
  .lightbox__prev { left: 50%;  margin-left: -3.25rem; }
  .lightbox__next { right: 50%; margin-right: -3.25rem; }
  .lightbox__meta { flex-direction: column; align-items: flex-start; gap: 0.25rem; }
}