*,
*::after,
*::before {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue';
}

a {
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: transparent transparent;
}

body {
  height: 100vh;
  width: 100%;
  background-image: radial-gradient(125% 125% at 50% 10%, #fff 40%, #6366f1 100%);
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.gallery {
  --size: 100px;
  display: grid;
  grid-template-columns: repeat(6, var(--size));
  grid-auto-rows: var(--size);
  margin-bottom: var(--size);
  place-items: start center;
  gap: 5px;

  &:has(:hover) img:not(:hover),
  &:has(:focus) img:not(:focus) {
    filter: brightness(0.5) contrast(0.5);
  }

  & img {
    object-fit: cover;
    width: calc(var(--size) * 2);
    height: calc(var(--size) * 2);
    clip-path: path(
      'M90,10 C100,0 100,0 110,10 190,90 190,90 190,90 200,100 200,100 190,110 190,110 110,190 110,190 100,200 100,200 90,190 90,190 10,110 10,110 0,100 0,100 10,90Z'
    );
    transition: clip-path 0.25s, filter 0.75s;
    grid-column: auto / span 2;
    border-radius: 5px;

    &:nth-child(5n - 1) {
      grid-column: 2 / span 2;
    }

    &:hover,
    &:focus {
      clip-path: path(
        'M0,0 C0,0 200,0 200,0 200,0 200,100 200,100 200,100 200,200 200,200 200,200 100,200 100,200 100,200 100,200 0,200 0,200 0,100 0,100 0,100 0,100 0,100Z'
      );
      z-index: 1;
      transition: clip-path 0.25s, filter 0.25s;
    }

    &:focus {
      outline: 1px dashed black;
      outline-offset: -5px;
    }
  }
}