$breakpoint-width: 925px !default;

@mixin on-small-screen() {
  @media (max-width: $breakpoint-width - 1px) {
    @content;
  }
}

@mixin on-large-screen() {
  @media (min-width: $breakpoint-width) {
    @content;
  }
}

@mixin image-button($icon-size) {
  display: block;
  box-sizing: content-box;
  cursor: pointer;
  text-decoration: none;

  &:hover svg {
    transform: translateX(-50%) translateY(-50%) scale(1.15);
  }

  svg {
    @include absolute-center;
    @include square($icon-size);
    transition: transform var(--transition-time);
    transform-origin: center center;
  }
}

@mixin center-children() {
  display: flex;
  align-items: center;
  justify-content: center;
}

@mixin absolute-center() {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
}

@mixin blurred-background() {
  backdrop-filter: blur(var(--blur-radius));
  @supports not (backdrop-filter: blur(var(--blur-radius))) {
    background-color: var(--card-color);
  }
}

@mixin square($size) {
  width: $size;
  height: $size;
}

@mixin title-font() {
  font: 400 3rem 'Comfortaa', serif;
  font-style: normal;
  color: var(--normal-text-color);
  line-height: 1;
  transition: color var(--transition-time);

  @include on-small-screen {
    font-size: 3rem;
    line-height: 1.1;
  }
}

@mixin sub-title-font() {
  font: 400 1.75rem 'Comfortaa', serif;
  color: var(--normal-text-color);
  font-style: normal;
  hyphens: auto;
  transition: color var(--transition-time);
}

@mixin main-font() {
  font: 400 1.1rem 'Open Sans', sans-serif;
  color: var(--normal-text-color);
  line-height: 1.8;
  hyphens: auto;
  transition: color var(--transition-time);
}

@mixin special-text-font() {
  font: 400 1rem 'Open Sans', sans-serif;
  color: var(--special-text-color);
  font-style: italic;
  transition: color var(--transition-time);
}

@mixin link {
  $border-shift: 10px;
  $line-width: 2px;

  @include special-text-font();
  text-decoration: none;
  cursor: pointer;
  position: relative;
  display: inline-block;
  overflow: hidden;

  padding: 0 3px $line-width 0;

  &:before,
  &:after {
    content: '';
    display: block;
    position: absolute;
    bottom: 0;
  }

  &:before {
    width: calc(100% + #{$border-shift});
    border-bottom: $line-width dashed var(--accent-color);
    transition: transform var(--transition-time);
  }

  &:after {
    width: 100%;
    height: $line-width;
    background: linear-gradient(
      90deg,
      var(--card-color) 0,
      transparent 4px,
      transparent calc(100% - 4px),
      var(--card-color) 100%
    );
  }

  &:hover {
    &:before {
      transform: translateX(-$border-shift);
    }
  }
}