/* -------------------------------- 

File#: _1_sticky-feature
Title: Sticky Feature
Descr: List of product features with sticky images
Usage: codyhouse.co/license

-------------------------------- */


/* variables */
:root {
  /* colors */
  --sh4-color-primary-hsl: 250, 84%, 54%;
  --sh4-color-contrast-lower-hsl: 240, 4%, 85%;
  --sh4-color-contrast-medium-hsl: 225, 4%, 47%;
  --sh4-color-contrast-high-hsl: 230, 7%, 23%;
  --sh4-color-contrast-higher-hsl: 230, 13%, 9%;
  --sh4-color-bg-dark-hsl: 240, 4%, 95%;
  --sh4-color-bg-hsl: 0, 0%, 100%;
  --sh4-color-black-hsl: 230, 13%, 9%;
  --sh4-color-accent-hsl: 342, 89%, 48%;

  /* spacing */
  --sh4-space-xs: 0.5rem;
  --sh4-space-sm: 0.75rem;
  --sh4-space-md: 1.25rem;
  --sh4-space-lg: 2rem;
  --sh4-space-xl: 3.25rem;
  --sh4-space-2xl: 5.25rem;

  /* typography */
  --sh4-text-xl: 1.728rem;
  --sh4-text-sm: 0.833rem;
}

@media(min-width: 64rem){
  :root {
    /* spacing */
    --sh4-space-xs: 0.75rem;
    --sh4-space-sm: 1.125rem;
    --sh4-space-md: 2rem;
    --sh4-space-lg: 3.125rem;
    --sh4-space-xl: 5.125rem;
    --sh4-space-2xl: 8.25rem;
    
    /* typography */
    --sh4-text-xl: 2.44rem;
    --sh4-text-sm: 1rem;
  }
}

/* component */
.sticky-feature {
  position: relative;
  z-index: 1;
  /* padding: var(--sh4-space-lg) 0; */
}

.sticky-feature__container {
  width: calc(100% - 2*var(--sh4-space-md));
  margin-left: auto;
  margin-right: auto;
  max-width: 32rem;
}

@media(min-width: 48rem) {
  .sticky-feature__container {
    max-width: 48rem;
  }
}

@media(min-width: 64rem) {
  .sticky-feature__container {
    max-width: 64rem;
  }
}

@media(min-width: 80rem) {
  .sticky-feature__container {
    max-width: 80rem;
  }
}

.sticky-feature__grid-1 {
  display: grid;
}

@media(min-width: 64rem) {
  .sticky-feature__grid-1 {
    grid-template-columns: 1fr 1fr;
    gap: var(--sh4-space-md);
  }
}

@media(min-width: 80rem) {
  .sticky-feature__grid-1 > *:first-child {
    padding-right: var(--sh4-space-xl);
  }
}

.sticky-feature__grid-2 {
  display: grid;
  gap: var(--sh4-space-xl);
}

@media(min-width: 64rem) {
  .sticky-feature__grid-2 {
    gap: var(--sh4-space-2xl);
  }
}

.sticky-feature__content-figure {
  /* images visible on small screens */
  border-radius: 0.375em;
  overflow: hidden;
  box-shadow: 0 0.3px 0.4px hsla(var(--sh4-color-black-hsl), 0.025),0 0.9px 1.5px hsla(var(--sh4-color-black-hsl), 0.05), 0 3.5px 6px hsla(var(--sh4-color-black-hsl), 0.1);
  margin-top: var(--sh4-space-md);
}

.sticky-feature__content-figure img {
  display: block;
  width: 100%;
}

.sticky-feature__media-list {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sticky-feature__media-item {
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sticky-feature__media-figure {
  /* images visible on bigger screens */
  border-radius: 0.75em;
  box-shadow: 0 0.3px 0.4px hsla(var(--sh4-color-black-hsl), 0.025),0 0.9px 1.5px hsla(var(--sh4-color-black-hsl), 0.05), 0 3.5px 6px hsla(var(--sh4-color-black-hsl), 0.1);
  overflow: hidden;
  opacity: 0;
}

.sticky-feature__media-figure img {
  display: block;
  width: 100%;
  max-height: 90vh;
}

.sticky-feature-current-item .sticky-feature__media-figure {
  opacity: 1;
}

@media (min-width: 64rem) {
  .sticky-feature__content-list {
    padding-top: 50vh;
    padding-bottom: 50vh;
  }

  .sticky-feature__title {
    font-size: var(--sh4-text-xl);
    cursor: pointer;
    opacity: 0.3;
  }

  .sticky-feature__title:hover, .sticky-feature-current-item .sticky-feature__title {
    opacity: 1;
    color: var(--color-accent-dark);
  }
  .sticky-feature-current-item p{
    color: var(--color-accent-dark);
}
  .sticky-feature__content-figure {
    /* show only to screen readers */
    position: absolute;
    clip: rect(1px, 1px, 1px, 1px);
    -webkit-clip-path: inset(50%);
            clip-path: inset(50%);
    width: 1px;
    height: 1px;
    overflow: hidden;
    padding: 0;
    border: 0;
    white-space: nowrap;
  }

  .sticky-feature__media-list::before, .sticky-feature__media-list::after {
    /* text overlay gradients */
    content: "";
    position: absolute;
    right: 0;
    width: 100vw;
    height: 100px;
    pointer-events: none;
  }

  .sticky-feature__media-list::before {
    top: 0;
    background: linear-gradient(to bottom, hsl(var(--sh4-color-bg-hsl)), hsla(var(--sh4-color-bg-hsl), 0.8), hsla(var(--sh4-color-bg-hsl), 0));
  }

  .sticky-feature__media-list::after {
    bottom: 0;
    background: linear-gradient(to top, hsl(var(--sh4-color-bg-hsl)), hsla(var(--sh4-color-bg-hsl), 0.8), hsla(var(--sh4-color-bg-hsl), 0));
  }
}

/* utility classes */
@media not all and (min-width: 64rem) {
  .sticky-feature-display\@md {
    display:none !important;
  }
}