//-- Shadows
@mixin focus-shadow() {
  box-shadow: 0 0 8px rgba(0, 0, 0, .18), 0 8px 16px rgba(0, 0, 0, .36);
}

@mixin shadow-2dp() {
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, $shadow-key-penumbra-opacity),
                0 3px 1px -2px rgba(0, 0, 0, $shadow-key-umbra-opacity),
                0 1px 5px 0 rgba(0, 0, 0, $shadow-ambient-shadow-opacity);
}

@mixin shadow-3dp() {
  box-shadow: 0 3px 4px 0 rgba(0, 0, 0, $shadow-key-penumbra-opacity),
                0 3px 3px -2px rgba(0, 0, 0, $shadow-key-umbra-opacity),
                0 1px 8px 0 rgba(0, 0, 0, $shadow-ambient-shadow-opacity);
}

@mixin shadow-4dp() {
  box-shadow: 0 4px 5px 0 rgba(0, 0, 0, $shadow-key-penumbra-opacity),
                0 1px 10px 0 rgba(0, 0, 0, $shadow-ambient-shadow-opacity),
                0 2px 4px -1px rgba(0, 0, 0, $shadow-key-umbra-opacity);
}

@mixin shadow-6dp() {
  box-shadow: 0 6px 10px 0 rgba(0, 0, 0, $shadow-key-penumbra-opacity),
                0 1px 18px 0 rgba(0, 0, 0, $shadow-ambient-shadow-opacity),
                0 3px 5px -1px rgba(0, 0, 0, $shadow-key-umbra-opacity);
}

@mixin shadow-8dp() {
  box-shadow: 0 8px 10px 1px rgba(0, 0, 0, $shadow-key-penumbra-opacity),
                0 3px 14px 2px rgba(0, 0, 0, $shadow-ambient-shadow-opacity),
                0 5px 5px -3px rgba(0, 0, 0, $shadow-key-umbra-opacity);
}

@mixin shadow-16dp() {
  box-shadow: 0 16px 24px 2px rgba(0, 0, 0, $shadow-key-penumbra-opacity),
                0 6px 30px 5px rgba(0, 0, 0, $shadow-ambient-shadow-opacity),
                0 8px 10px -5px rgba(0, 0, 0, $shadow-key-umbra-opacity);
}

//-- Animations
@mixin material-animation-fast-out-slow-in($duration: .2s) {
  transition-timing-function: $animation-curve-fast-out-slow-in;
  transition-duration: $duration;
}

@mixin material-animation-linear-out-slow-in($duration: .2s) {
  transition-timing-function: $animation-curve-linear-out-slow-in;
  transition-duration: $duration;
}

@mixin material-animation-fast-out-linear-in($duration: .2s) {
  transition-timing-function: $animation-curve-fast-out-linear-in;
  transition-duration: $duration;
}

@mixin material-animation-default($duration: .2s) {
  transition-timing-function: $animation-curve-default;
  transition-duration: $duration;
}