.coa__intro { color: var(--ink-soft); max-width: var(--measure); }
.coa__batch {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-3);
  align-items: baseline;
  margin-top: var(--s-4);
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--mist);
  width: fit-content;
  font-size: var(--step--1);
}

.coa__list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 240px));
  gap: var(--s-4);
  margin-top: var(--s-5);
  list-style: none;
  padding: 0;
}

/* The certificate is presented as a document sitting on the page: a paper
   coloured frame, a hairline border and a shallow shadow. It should look like
   something you could pick up. */
.coa__figure {
  display: block;
  position: relative;
  padding: var(--s-2);
  border: 1px solid var(--line-firm);
  border-radius: var(--radius-sm);
  background: var(--ground);
  box-shadow: var(--shadow-1);
  transition: box-shadow 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.coa__figure:hover { box-shadow: var(--shadow-2); border-color: var(--accent); transform: translateY(-2px); }
.coa__figure img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  background: var(--mist);
  border-radius: 2px;
}

.coa__zoom {
  position: absolute;
  right: var(--s-4);
  bottom: var(--s-4);
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}
.coa__figure:hover .coa__zoom, .coa__figure:focus-visible .coa__zoom { opacity: 1; transform: scale(1); }
.coa__zoom span[aria-hidden] { position: relative; width: 13px; height: 13px; display: block; }
.coa__zoom span[aria-hidden]::before {
  content: "";
  position: absolute; inset: 0 3px 3px 0;
  border: 1.6px solid #fff;
  border-radius: 50%;
}
.coa__zoom span[aria-hidden]::after {
  content: "";
  position: absolute; right: 0; bottom: 0;
  width: 5px; height: 1.6px;
  background: #fff;
  transform: rotate(45deg);
}

.coa__note, .coa__pending { font-size: var(--step--1); color: var(--ink-faint); margin-top: var(--s-4); max-width: var(--measure); }
.coa__pending {
  padding: var(--s-4);
  border: 1px dashed var(--line-firm);
  border-radius: var(--radius-sm);
  background: var(--mist);
  color: var(--ink-soft);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(12, 16, 20, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--s-5);
}
.lightbox.is-open { display: flex; }
.lightbox__inner { max-width: min(96vw, 1100px); max-height: 92vh; display: grid; gap: var(--s-4); justify-items: center; }
.lightbox__image {
  max-width: 100%;
  max-height: 82vh;
  width: auto;
  border-radius: var(--radius-sm);
  background: #fff;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
}
.lightbox__caption { color: #c8d0d7; font-size: var(--step--1); text-align: center; }
.lightbox__close {
  position: absolute;
  top: var(--s-5); right: var(--s-5);
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex; align-items: center; justify-content: center;
}
.lightbox__close:hover { background: rgba(255, 255, 255, 0.2); }
.lightbox__close span[aria-hidden] { position: relative; width: 18px; height: 18px; display: block; }
.lightbox__close span[aria-hidden]::before,
.lightbox__close span[aria-hidden]::after {
  content: ""; position: absolute; top: 8px; left: 0;
  width: 18px; height: 1.6px; background: #fff;
}
.lightbox__close span[aria-hidden]::before { transform: rotate(45deg); }
.lightbox__close span[aria-hidden]::after { transform: rotate(-45deg); }

@media (max-width: 620px) {
  .coa__list { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .coa__zoom { opacity: 1; transform: scale(1); }
}