*, *:before, *:after {
  box-sizing: inherit;
}

header {
  width: 100%;
  height: 8rem;
  position: sticky;
  top: 0;
  z-index: 1;
}
header > div {
  width: calc(100% - 3rem);
  max-width: 800px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
}

#title {
  width: 100%;
}
#title .parent {
  line-height: 1em;
  color: #666;
}
#title .name {
  font-size: 2em;
  font-weight: bold;
  color: #333;
  mix-blend-mode: difference;
}

#reference {
  display: flex;
}
#reference > a {
  color: #444;
}
#reference > a + a {
  margin-left: 1rem;
}

main, #folders {
  width: calc(100% - 3rem);
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  grid-gap: 1.5rem;
}

main > article {
  width: 100%;
  height: 32px;
  padding: 1rem;
  background-color: #FFF;
}
main > figure {
  width: 250px;
  margin: 0;
  background-color: #FFF;
  background-size: cover;
  border-radius: 1rem;
  height: 250px;
  transition: all 100ms ease-out;
}
main > figure:hover {
  box-shadow: 0 16px 16px -4px rgba(0, 0, 0, 0.3);
  transform: scale(1.5);
  /* background-color: #333; */
  cursor: pointer;
}
main > figure:after {
  content: "";
  padding-bottom: 100%;
  display: block;
}
main > figure > figcaption {
  margin: 1rem;
  color: #FFF;
  font-size: 1.25em;
  position: absolute;
}

#folders {
  margin-top: 0.5rem;
  margin-bottom: 2rem;
}
#folders > article {
  width: 100%;
  height: 4rem;
  padding: 0 1.5rem;
  background-color: #FFF;
  border-radius: 1rem;
  line-height: 4rem;
  transition: all 100ms ease-out;
}
#folders > article:hover {
  box-shadow: 0 16px 16px -4px rgba(0, 0, 0, 0.1);
  transform: scale(1.02);
}

footer {
  width: 100%;
  height: 8rem;
}
@media (max-width:852px)
{
  main figure:hover{
    transform: scale(1);
  }
  /* .per:hover
  {
    transform: scale(0);
  } */
}

.per
{
  height: 250px;
  width: 250px;
  top: 0;
  left: 0;
  position: absolute;
  background: rgba(0,0,0,0.4);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  opacity: 0;
  transition: 0.6s;
}
/* figure:hover
{
  filter: blur(5px);
} */
.per:hover .figcapimggallery
{
  filter: blur(0);
  z-index: 10;
}
.per:hover{
  opacity: 1;
  /* backdrop-filter: blur(5px); */
  border-radius: 1rem;
  cursor: pointer;
}
.figcapimggallery
{
  color: #fff;
  font-family: Georgia, 'Times New Roman', Times, serif;
  letter-spacing: 1px;
  z-index: 10;
  filter: blur(0);
}