////
/// Menu
/// A dropdown menu. Used for nested navigation and selection
/// @group menu
////

/// Background color of the menu
$am-menu-background: #fff !default;
/// Border radious of the menu
$am-menu-border-radius: 2px !default;
/// X-axis offset of opened menu
$am-menu-offset-x: 0 !default;
/// Y-axis offset of opened menu
$am-menu-offset-y: am-unit(4) !default;
/// Padding of opened menu's container
$am-menu-padding: am-unit(1) !default;
/// Padding of individual menu items
$am-menu-item-padding: am-type-unit(1) am-unit(2) !default;
/// Transition time of menu opening
$am-menu-transition: 0.2s !default;
/// Transition delay when a menu opens
$am-menu-transition-delay: 0.2s !default;
/// Minimum allowable width of menu
$am-menu-min-width: am-unit(14) !default;
/// Desktop breakpoint
$am-menu-breakpoint: 1300px !default;
/// The size of the dropdown carot that displays next to the menu toggle
$am-menu-carat-size: 5px !default;

@mixin am-menu {
  display: inline-block;
  outline: 0;
  position: relative;
  text-align: left;
}

@mixin am-menu-carat {
  border: $am-menu-carat-size solid transparent;
  border-color: am-color(primary) transparent transparent;
  content: "";
  height: 0;
  margin-top: calc($am-menu-carat-size / -2);
  position: absolute;
  right: -15px;
  top: 50%;
  width: 0;
}

@mixin am-menu-carat-muted {
  border-top-color: am-color(hint);
}

@mixin am-menu-list {
  background: $am-menu-background;
  border-radius: $am-menu-border-radius;
  box-shadow: 0 1px 1px rgba(#000, 0.24), 0 0 1.5px rgba(#000, 0.12);
  filter: blur(1px);
  left: $am-menu-offset-x;
  list-style: none;
  margin: 0;
  min-width: $am-menu-min-width;
  padding: $am-menu-padding 0;
  position: absolute;
  text-align: left;
  top: $am-menu-offset-y;
  transform-origin: 0 0;
  transform: translate3d(0, -4px, 0) scaleY(0);
  transition: $am-menu-transition all;
  width: auto;
  will-change: transform;
  z-index: $am-elevation-top;
}

@mixin am-menu-list-right {
  left: auto;
  right: $am-menu-offset-x;
}

@mixin am-menu-item {
  display: block;
  margin: 0;
  transition: $am-menu-transition all;
}

@mixin am-menu-link {
  @include am-link(secondary-text);
  @include am-link-no-decoration;
  display: block;
  font-size: 14px;
  opacity: 0;
  padding: $am-menu-item-padding;
  transition: 0.28s opacity, 0.28s color;
  white-space: nowrap;

  &:hover,
  &:focus {
    @include am-color(primary);
  }

  @include am-min-breakpoint($am-menu-breakpoint) {
    font-size: 13px;
  }
}

@mixin am-menu-button {
  position: relative;
}

@mixin am-menu-list-open {
  filter: none;
  transition: $am-menu-transition all;
  transform: translateZ(0) scale(1);
}

@mixin am-menu-item-open {
  opacity: 1;
  transition: $am-menu-transition opacity;
}
