mobile-smallest() {
  @media (max-width: 413px) {
    {block};
  }
}

mobile-small() {
  @media (max-width: 567px) {
    {block};
  }
}

mobile() {
  @media (max-width: 767px) {
    {block};
  }
}

tablet-mobile() {
  @media (max-width: 991px) {
    {block};
  }
}

tablet-desktop() {
  @media (min-width: 768px) {
    {block};
  }
}

tablet() {
  @media (min-width: 768px) and (max-width: 991px) {
    {block};
  }
}

desktop() {
  @media (min-width: 992px) {
    {block};
  }
}

desktop-large() {
  @media (min-width: 1200px) {
    {block};
  }
}

desktop-largest() {
  @media (min-width: 1600px) {
    {block};
  }
}

random-color($min, $max) {
  return floor(math(0, 'random') * ($max - $min + 1) + $min);
}

word-wrap() {
  overflow-wrap: break-word;
}

disable-user-select() {
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-user-select: none;
  user-select: none;
}

sidebar-inline-links-item() {
  margin: 5px 0 0;

  a {
    box-sizing: border-box;
    display: inline-block;
    max-width: 100%;
    overflow: hidden;
    padding: 0 5px;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

flex-wrap() {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

flex-column() {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

post-card() {
  background: var(--card-bg-color);
  border-left: 3px solid $red;
  margin: $post-card-margin;
}

font-family-icons($icon = '') {
  if ($icon) {
    content: $icon;
  }
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
}

main-container() {
  margin: 0 auto;
  width: $content-desktop;

  +desktop-large() {
    width: $content-desktop-large;
  }

  +desktop-largest() {
    width: $content-desktop-largest;
  }
}

sidebar-toggle-alignment($reverse) {
  $condition = hexo-config('sidebar.position') == 'right';
  if (($scheme == 'Muse') or ($scheme == 'Mist')) {
    $condition = $condition == $reverse;
  }
  return $condition ? ('left' 'right') : ('right' 'left');
}

sidebar-toggle-position($reverse) {
  $alignment = sidebar-toggle-alignment($reverse)[0];
  {$alignment}: $b2t-position-right;
  +tablet-mobile() {
    {$alignment}: $b2t-position-right-mobile;
  }
}

sidebar-toggle() {
  background: $b2t-bg-color;
  cursor: pointer;
  opacity: $b2t-opacity;
  position: fixed;
  z-index: $zindex-3;
  sidebar-toggle-position(false);

  &:hover {
    opacity: $b2t-opacity-hover;
  }

  +tablet-mobile() {
    opacity: $b2t-opacity-hover;
  }
}

round-icon($diameter) {
  border-radius: 50%;
  content: ' ';
  height: $diameter;
  width: $diameter;
}

toggle-arrow($position) {
  if ($position == 'right') {
    .toggle-line:first-child {
      top: 2px;
      transform: rotate(-45deg);
      width: 50%;
    }

    .toggle-line:last-child {
      top: -2px;
      transform: rotate(45deg);
      width: 50%;
    }
  } else {
    .toggle-line:first-child {
      left: 50%;
      top: 2px;
      transform: rotate(45deg);
      width: 50%;
    }

    .toggle-line:last-child {
      left: 50%;
      top: -2px;
      transform: rotate(-45deg);
      width: 50%;
    }
  }
}

toggle-close($position) {
  .toggle-line:nth-child(2) {
    opacity: 0;
  }

  if ($position == 'right') {
    .toggle-line:first-child {
      top: 5px;
      transform: rotate(-45deg);
    }

    .toggle-line:last-child {
      top: -5px;
      transform: rotate(45deg);
    }
  } else {
    .toggle-line:first-child {
      top: 5px;
      transform: rotate(45deg);
    }

    .toggle-line:last-child {
      top: -5px;
      transform: rotate(-45deg);
    }
  }
}

site-nav-hide-by-default() {
  --scroll-height: 0;
  height: 0;
  overflow: hidden;
  transition: height $transition-ease;

  body:not(.site-nav-on) & .animated {
    animation: none;
  }

  body.site-nav-on & {
    height: var(--scroll-height);
  }
}

button($color) {
  background: transparent;
  color: $color;
  cursor: pointer;
  line-height: 2;
  padding: 0 15px;

  &:hover {
    background: $color;
    color: white;
  }
}