utility.css

/* Can overlay a background image */
.background-overlay {
  box-shadow: inset 0 0 0 9999px var(--color-bg);
}

/* Breakout clickable element. */
/* As seen here: https://piccalil.li/tutorial/create-a-semantic-break-out-button-to-make-an-entire-element-clickable/ */
.breakout-clickable {
  position: relative;
  /* cursor: pointer; */
  /* transition: transform 300ms ease-in-out, box-shadow 400ms ease, background 100ms ease; */
  --shadow-breakout-clickable: var(--shadow-raised-s);
  --shadow-breakout-clickable-hover: var(--shadow-raised-m);
  box-shadow: var(--shadow-breakout-clickable);
}
.breakout-clickable .clickable::after {
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.breakout-clickable:hover,
.breakout-clickable:focus-within {
  /* box-shadow: 0 0.5rem 0.5rem var(--color-shadow); */
  /* box-shadow: 0 30px 60px -20px rgb(0 0 0 / 20%), 0 50px 100px -10px rgb(23 41 64 / 10%); */
  box-shadow: var(--shadow-breakout-clickable-hover);
  transform: translateY(-0.2rem);
}
.breakout-clickable .clickable:focus {
  outline: none;
}
.breakout-clickable .clickable:focus::after {
  outline: 1px solid;
  outline-offset: calc(var(--gap) / 2 * -1);
}

/* Full Bleed: break out of a reduced width */
/* As seen here: https://piccalil.li/tutorial/creating-a-full-bleed-css-utility/ */
.full-bleed, .full-bleed-before::before, .full-bleed-after::after {
  width: 100vw;
  margin-left: calc(50% - 50vw);
}

/* Skew border */
.skew-border-after, .skew-border-before {
  position: relative;
  z-index: 0;
}
.skew-border-after:after, .skew-border-before::before {
  background: inherit;
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  z-index: -1;
}
.skew-border-before::before {
  transform: skewY(var(--skew-before, -1deg));
  transform-origin: var(--skew-before-origin, top left);
}
.skew-border-after:after {
  transform: skewY(var(--skew-after, 1deg));
  transform-origin: var(--skew-after-origin, bottom left);
}