// Links
//
// Hyperlinks are used to allow the user to navigate to other resources or to
// download a resource.
//
// The order of link states are based on Eric Meyer's article:
// http://meyerweb.com/eric/thoughts/2007/06/11/who-ordered-the-link-states
//
// :visited - A link that has already been visited.
// :hover   - A link that is being hovered over.
// :focus   - A link that has been given keyboard focus.
// :active  - A link that is being actively clicked.

a,
%link {
  color: var(--color-link);
}

// Any element can receive focus, but only links can be visited, so we can
// safely lower this selector's specificity. This also ensures visited links
// with additional styles won't have their styles overridden.
:visited {
  color: var(--color-link-visited);
}

a:hover,
a:focus {
  color: var(--color-link-hover);
}

a:active {
  color: var(--color-link-active);
}

// Remove underline from links to current page to
// indicate that there is no need to click on it.
[aria-current] {
  text-decoration: none;
}

.link-nav,
%link-nav {
  a {
    text-decoration: none;

    &:hover,
    &:focus {
      text-decoration: underline;
    }
  }
}

// Inverted links, for dark backgrounds.
.link-inverted,
%link-inverted {
  a {
    color: var(--color-link-inverted);

    &:visited {
      color: var(--color-link-visited-inverted);
    }

    &:hover,
    &:focus {
      color: var(--color-link-hover-inverted);
    }

    &:active {
      color: var(--color-link-active-inverted);
    }
  }
}