// Extra small screen / phone
// Note: Deprecated @screen-xs and @screen-phone as of v3.0.1
@screen-xs:                  480px;
@screen-xs-min:              @screen-xs;
@screen-phone:               @screen-xs-min;

// Small screen / tablet
// Note: Deprecated @screen-sm and @screen-tablet as of v3.0.1
@screen-sm:                  768px;
@screen-sm-min:              @screen-sm;
@screen-tablet:              @screen-sm-min;

// Medium screen / desktop
// Note: Deprecated @screen-md and @screen-desktop as of v3.0.1
@screen-md:                  992px;
@screen-md-min:              @screen-md;
@screen-desktop:             @screen-md-min;

// Large screen / wide desktop
// Note: Deprecated @screen-lg and @screen-lg-desktop as of v3.0.1
@screen-lg:                  1200px;
@screen-lg-min:              @screen-lg;
@screen-lg-desktop:          @screen-lg-min;

// So media queries don't overlap when required, provide a maximum
@screen-xs-max:              (@screen-sm-min - 1);
@screen-sm-max:              (@screen-md-min - 1);
@screen-md-max:              (@screen-lg-min - 1);

@transition_duration: 0.5s;
.transition (@prop: all, @time: @transition_duration, @ease: linear) {
  -webkit-transition: @prop @time @ease;
  -moz-transition: @prop @time @ease;
  -o-transition: @prop @time @ease;
  -ms-transition: @prop @time @ease;
  transition: @prop @time @ease;
}

.box-shadow (@x: 0px, @y: 3px, @blur: 5px, @alpha: 0.5) {
  -webkit-box-shadow: @x @y @blur rgba(0, 0, 0, @alpha);
  -moz-box-shadow: @x @y @blur rgba(0, 0, 0, @alpha);
  box-shadow: @x @y @blur rgba(0, 0, 0, @alpha);
}

.border-radius (@topleft: 5px, @topright: 5px, @bottomleft: 5px, @bottomright: 5px) {
  -webkit-border-radius: @topleft @topright @bottomright @bottomleft;
  -moz-border-radius: @topleft @topright @bottomright @bottomleft;
  border-radius: @topleft @topright @bottomright @bottomleft;
}

.transform (@rotate: 90deg, @scale: 1, @skew: 1deg, @translate: 10px) {
  -webkit-transform: rotate(@rotate) scale(@scale) skew(@skew) translate(@translate);
  -moz-transform: rotate(@rotate) scale(@scale) skew(@skew) translate(@translate);
  -o-transform: rotate(@rotate) scale(@scale) skew(@skew) translate(@translate);
  -ms-transform: rotate(@rotate) scale(@scale) skew(@skew) translate(@translate);
  transform: rotate(@rotate) scale(@scale) skew(@skew) translate(@translate);
}

.transform-rotate(@rotate: 90deg, @time:0.5s, @ease: linear){
  -webkit-transition: -webkit-transform @time @ease;
  -moz-transition: -moz-transform @time @ease;
  transition: transform @time @ease;
  -webkit-transform: rotate(@rotate);
  -moz-transform: rotate(@rotate);
  -o-transform: rotate(@rotate);
  -ms-transform: rotate(@rotate);
  transform: rotate(@rotate);
}
.transform-rotate-y(@rotate: 90deg, @time:0.5s, @ease: linear){
  -webkit-transition: -webkit-transform @time @ease;
  -moz-transition: -moz-transform @time @ease;
  transition: transform @time @ease;
  -webkit-transform: rotateY(@rotate);
  -moz-transform: rotateY(@rotate);
  -o-transform: rotateY(@rotate);
  -ms-transform: rotateY(@rotate);
  transform: rotateY(@rotate);
}
.middle-center(){
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translateX(-50%) translateY(-50%);
  -moz-transform: translateX(-50%) translateY(-50%);
  -o-transform: translateX(-50%) translateY(-50%);
  -ms-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
}