/* Photo posts (layouts/photo.njk). A group of photos is a .wide block; a lone photo is the text column unless flagged. */

/* Rows are decided at build time (src/_config/photo-rows.js); photos in a row grow by aspect ratio to share a height.
   On phones .row stops being a box and .mbreak spacers break the lines. */
.photos {
  /* Only the bottom: the sides belong to .wide, .narrow and .bleed in site.css. */
  margin-bottom: 1.66rem;
}

/* More room around text above the phone breakpoint, the same above a text block as below it. (Written as "not a phone"
   so the file breaks at the site's max-width: 600px.) */
@media not all and (max-width: 600px) {
  .photos {
    margin-top: 3.2rem;
    margin-bottom: 3.2rem;
  }

  /* The first block under the banner. */
  article.normal-width > :first-child {
    margin-top: 3.2rem;
  }

  /* A heading belongs to the photos under it, and two groups in a row are one block of photos. */
  h2 + .photos {
    margin-top: 1rem;
  }

  .photos + .photos {
    margin-top: 0;
  }

  /* A heading that starts a text block. */
  .photos + h2 {
    margin-top: 1rem;
  }

  .photos:has(+ .photos) {
    margin-bottom: 2.2rem;
  }
}

.row {
  display: flex;
  gap: var(--photo-gap);
}

.row + .row {
  margin-top: var(--photo-gap);
}

.mbreak {
  display: none;
}

.photo {
  position: relative;
  margin: 0;
  /* A photo can't be selected, which would cover it in the theme colour. (Safari needs the prefix.) */
  -webkit-user-select: none;
  user-select: none;
  /* Scaled up: grow factors that add up to less than 1 (a lone portrait) would fill only part of the row. */
  flex: calc(var(--ar) * 1000) 1 0%;
  min-width: 0;
}

@media (max-width: 600px) {
  .photos {
    display: flex;
    flex-wrap: wrap;
    gap: 0 var(--photo-gap);
  }

  .row {
    display: contents;
  }

  .mbreak {
    display: block;
    flex: 0 0 100%;
    height: var(--photo-gap);
  }
}

.photo a {
  display: block;
}

.photo img {
  width: 100%;
}

/* End of the post */
.footnotes {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--grey-extra-light);
  font-size: 0.75rem;
  text-align: center;
}

.footnotes h2 {
  margin-bottom: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.location {
  margin: 2rem 0;
  text-align: center;
  font: 700 0.75rem/1.4 var(--header-font-family);
}

/* Lightbox */
#lightbox {
  border: 0;
  padding: 0;
  margin: 0;
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  background: rgb(0 0 0 / 0.94);
}

#lightbox[open] {
  display: grid;
  place-items: center;
}

/* The page behind is the dim over white (#0f0f0f), so Safari's bars match it. */
html:has(#lightbox[open]),
html:has(#lightbox[open]) body {
  background: #0f0f0f;
}

#lightbox img {
  max-width: 96vw;
  max-height: 94vh;
  width: auto;
  height: auto;
  object-fit: contain;
}

/* Photo posts get their own styling here: the controls are bigger than anything else on the site. */
#lightbox button {
  position: absolute;
  background: none;
  border: 0;
  color: #fff;
  font:
    2.5rem/1 system-ui,
    sans-serif;
  padding: 0.75rem 1rem;
  cursor: pointer;
  opacity: 0.7;
}

#lightbox button:hover,
#lightbox button:focus-visible {
  opacity: 1;
}

.lb-close {
  top: 0;
  right: 0;
}

.lb-prev,
.lb-next {
  top: 50%;
  transform: translateY(-50%);
}

.lb-prev {
  left: 0;
}

.lb-next {
  right: 0;
}