/*************************
######################
>>> TABLE OF CONTENTS:
######################

## Visual component & Visual helpers
### Landmark
    * Be-icon
      ├ Burger menu
      ├ Caret
      ├ Chevron
      ├ Circle
      ├ Exclamation
      ├ External link
      ├ Info (i)
      ├ Left check
      ├ Loading
      ├ Rectangle
      ├ Stop
      ├ Triangle
      └ Close / remove (x)
    * visual-aside
    * visual-indicator
    * Stack
  
### Placeholder (empty, skeleton)

### Be-animation
    ├ Pulse
    ├ Rotate
    └ Tilt-shake
    
### Visibilities

*************************/
@layer ui {
  
  /*
  ## Visual component & Visual helpers
  */
  
  /*
  ### Landmark
  */
  
  /**************** Be-icon ****************/
  [be-icon] {
    position: relative;

    display: inline-block;
    height: var(--indicator-dimension, 1em);
    width: var(--indicator-dimension, 1em);

    line-height: 1;
    
    translate: 0 .125em;

    &::after,
    &::before {
      position: absolute;
      display: block;

      inset: 50% auto auto 50%;
      transform: translate(-50%, -50%);
    }
  }

  /*** Burger menu ***/
  [be-icon="burger-menu"] {
    &::after {
      content: "";

      background: currentColor;
      box-shadow: 0 -.2em, 0 .2em;
      height: .125em;
      width: .75em;
    }
  }

  /*** caret ***/
  [be-icon="caret"] {
    &::after {
      content: "";

      border-right: .25em solid transparent;
      border-bottom: .25em solid currentColor;
      border-left: .25em solid transparent;
    }
  }

  /*** chevron ***/
  [be-icon="chevron"] {
    &::after {
      content: "";

      border: 0 solid currentColor;
      border-width: .125em 0 0 .125em;
      height: .5em;
      width: .5em;

      transform: translate(-25%, -50%) rotate(-45deg);
    }
  }

  /*** Circle ***/
  [be-icon="circle"] {
    &::after {
      content:"";

      background: currentColor;
      border-radius: 50%;

      height: .75em;
      width: .75em;
    }
  }

  /*** Excalamation ***/
  [be-icon="!"] {
    &::after {
      content: "!";

      font-family: monospace;
      font-style: normal;
      font-weight: bold;
    }
  }

  /*** external link ***/
  [be-icon="external-link"] {
    &::before {
      /* / */
      content: "";

      border-bottom: .125em solid;

      width: 1em;
      inset: .575em 0 auto auto;
      transform: rotate(-45deg);
    }

    &::after {
      /* > */
      content: "";

      border-right: .125em solid;
      border-top: .125em solid;

      height: .5em;
      inset: .5em -.125em auto auto;
      width: .5em;
    }
  }

  /*** Info (i) ***/
  [be-icon="i"] {
    &::after {
      content:"i";

      font-family: serif;
      font-style: italic;
      font-weight: bold;
      font-size: .9em;

      inset: 50% auto auto 50%;
      transform: translate(-50%, -50%);
    }
  }

  /*** left check ***/
  [be-icon="left-check"] {
    &::after {
      content: "";

      border-width: 0 .125em .125em 0;
      border-style: solid;

      height: .75em;
      width: .325em;

      rotate: 45deg;
      inset: .5em auto auto .2em;
    }
  }
  
  /*** loading ***/
  @keyframes rotate {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }

  [be-icon="loading"] {
    *:has(> &) {
      cursor: progress;
    }

    &::after {
      content: "";

      border: .125em solid;
      border-right: 0;
      border-right-color: transparent;
      border-top-color: transparent;
      border-radius: 50%;

      height: .75em;
      width: .75em;

      inset: .125em auto auto .125em;

      animation: rotate 500ms infinite linear;
    }
  }

  /*** Rectangle ***/
  [be-icon="rectangle"] {
    &::after {
      content:"";

      background: currentColor;
      border-radius: .125em;

      height: .75em;
      width: .75em;
    }
  }

  /*** Stop ***/
  [be-icon="stop"] {
    &::before,
    &::after {
      content: "";
    }

    &::before {
      border: .125em solid;
      border-radius: 50%;

      height: .825em;
      width: .825em;
    }

    &::after {
      border: 0 solid;
      border-width: 0 0 .125em 0;
      border-radius: .125em;

      inset: .75em auto auto .325em;

      height: .125em;
      width: .75em;

      rotate: 45deg;
    }
  }

  /*** Triangle ***/
  [be-icon="triangle"] {
    &::after {
      content:"";

      background: currentColor;
      height: .75em;
      width: .825em;

      clip-path: polygon(50% 0, 100% 100%, 0 100%);
      inset: 50% auto auto 50%;
      inset: 45% auto auto 50%;
    }
  }

  /*** Close / remove (x) ***/
  [be-icon="x"] {
    translate: unset;
    
    &::before,
    &::after {
      content: "";

      border: 0 solid;
      border-width: 0 0 .125em 0;
      border-radius: 1em;
      rotate: -45deg;
      inset: .25em auto auto .45em;
      inset: .25em auto auto 25%;
      translate: 25%;

      height: 0;
      width: .75em;
    }

    &::before {
      /* / */
    }

    &::after {
      /* \ */
      transform: translate(-50%, -50%) rotate(90deg) scaleX(-1);
    }
  }

  /**************** Visual aside & visual indicator ****************/
  .visual-aside {
    font-size: var(--visual-aside--font-size, 1em);

    height: var(--indicator-dimension, 1em);
    width: var(--indicator-dimension, 1em);

    position: relative;
    display: inline-block;
  }

  .visual-indicator {
    font-size: var(--visual-indicator--font-size, 1em);

    height: var(--indicator-dimension, 1em);
    width: var(--indicator-dimension, 1em);

    position: relative;
    display: inline-block;
  }
  
  /**************** Stack ****************/
  .stack {
    display: inline-grid;
    place-items: center;
    height: 2em;
    width: 2.5em;
    
    > * {
      grid-area: 1 / 1;
    }
    
    > :where([be-icon].stack-1x) {
      translate: 0 .25em;
    }
  }

  .stack-2x {
    font-size: 2em;
  }

  .stack-1x {
    line-height: inherit;
  }
  
  /*
  ### Placeholder (empty, skeleton)
  */
  .placeholder {
    background: var(--bg-color-off);
    display: inline-block;
    height: 1em;
    width: 100%;
    vertical-align: middle;
  }
  
  /*
  ### Be-animation
  */
  :is(button,
  [type="button"],
  [type="reset"],
  [type="submit"],
  .btn):where(:active, :focus, :focus-visible, :focus-within, :hover) {
    &[be-animation] {
      animation: none;
    }
  }

  /*** Pulse ***/
  @keyframes pulse-animation {
    0% {
      box-shadow: 0 0 0 0px rgba(0, 0, 0, 0.2);
    }
    100% {
      box-shadow: 0 0 0 20px rgba(0, 0, 0, 0);
    }
  }

  [be-animation="pulse"] {
    animation: pulse-animation 2s infinite;
  }

  /*** Rotate ***/
  [be-animation="rotate"] {
    animation: rotate 500ms infinite linear;
  }

  /*** Tilt-shake ***/
  @keyframes tilt-shake {
    55% { transform: translate(0, 0) rotate(0deg); }
    56% { transform: translate(6px, 5px) rotate(5deg); }
    57% { transform: translate(-6px, 5px) rotate(-5deg); }
    58% { transform: translate(2px, -3px) rotate(2deg); }
    59% { transform: translate(-2px, -3px) rotate(-2deg); }
    60% { transform: translate(0, 0) rotate(0deg); }
  }

  [be-animation="tilt-shake"] {
    animation: 5s infinite tilt-shake;
  }
  
  /*
  ### Visibilities
  */
  .invisible {
    position: absolute;
    height: 0;
    width: 0;

    opacity: 0;
    overflow: auto;
    overflow: clip;
  }

  .visible {
    position: static;
    height: auto;
    width: auto;

    opacity: 1;
    overflow: initial;
  }
  
  /*
  ### @Media screen
  */
  @media screen and (max-width: 1280px) {
    /*
    ### Visibilities
    */
    .invisible-vmd {
        position: absolute;
        height: 0;
        width: 0;

        opacity: 0;
        overflow: auto;
        overflow: clip;
    }

    .visible-vmd {
        position: static;
        height: auto;
        width: auto;

        opacity: 1;
        overflow: initial;
    }
  }

  @media screen and (max-width: 768px) {
    /*
    ### Visibilities
    */
    .invisible-vsm {
        position: absolute;
        height: 0;
        width: 0;

        opacity: 0;
        overflow: auto;
        overflow: clip;
    }

    .visible-vsm {
        position: static;
        height: auto;
        width: auto;

        opacity: 1;
        overflow: initial;
    }
  }
}