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// Name:            Animation
// Description:     Utilities for keyframe animations
//
// Component:       `uk-animation-*`
//
// Modifiers:       `uk-animation-fade`
//                  `uk-animation-scale-up`
//                  `uk-animation-scale-down`
//                  `uk-animation-slide-top-*`
//                  `uk-animation-slide-bottom-*`
//                  `uk-animation-slide-left-*`
//                  `uk-animation-slide-right-*`
//                  `uk-animation-kenburns`
//                  `uk-animation-shake`
//                  `uk-animation-stroke`
//                  `uk-animation-reverse`
//                  `uk-animation-fast`
//
// Sub-objects:     `uk-animation-toggle`
//
// States:          `uk-active`
//
// ========================================================================


// Variables
// ========================================================================

@animation-duration:                            0.5s;
@animation-fade-duration:                       0.8s;
@animation-stroke-duration:                     2s;
@animation-kenburns-duration:                   15s;
@animation-fast-duration:                       0.1s;

@animation-slide-small-translate:               10px;
@animation-slide-medium-translate:              50px;


/* ========================================================================
   Component: Animation
 ========================================================================== */

[class*='uk-animation-'] {
    animation-duration: @animation-duration;
    animation-timing-function: ease-out;
    animation-fill-mode: both;
}


/* Animations
 ========================================================================== */

/*
 * Fade
 */

.uk-animation-fade {
    animation-name: uk-fade;
    animation-duration: @animation-fade-duration;
    animation-timing-function: linear;
}

/*
 * Scale
 */

.uk-animation-scale-up { animation-name: uk-fade-scale-02; }
.uk-animation-scale-down { animation-name: uk-fade-scale-18; }

/*
 * Slide
 */

.uk-animation-slide-top { animation-name: uk-fade-top; }
.uk-animation-slide-bottom { animation-name: uk-fade-bottom; }
.uk-animation-slide-left { animation-name: uk-fade-left; }
.uk-animation-slide-right { animation-name: uk-fade-right; }

/*
 * Slide Small
 */

.uk-animation-slide-top-small { animation-name: uk-fade-top-small; }
.uk-animation-slide-bottom-small { animation-name: uk-fade-bottom-small; }
.uk-animation-slide-left-small { animation-name: uk-fade-left-small; }
.uk-animation-slide-right-small { animation-name: uk-fade-right-small; }

/*
 * Slide Medium
 */

.uk-animation-slide-top-medium { animation-name: uk-fade-top-medium; }
.uk-animation-slide-bottom-medium { animation-name: uk-fade-bottom-medium; }
.uk-animation-slide-left-medium { animation-name: uk-fade-left-medium; }
.uk-animation-slide-right-medium { animation-name: uk-fade-right-medium; }

/*
 * Kenburns
 */

.uk-animation-kenburns {
    animation-name: uk-scale-kenburns;
    animation-duration: @animation-kenburns-duration;
}

/*
 * Shake
 */

.uk-animation-shake { animation-name: uk-shake; }

/*
 * SVG Stroke
 * The `--uk-animation-stroke` custom property contains the longest path length.
 * Set it manually or use `uk-svg="stroke-animation: true"` to set it automatically.
 * All strokes are animated by the same pace and doesn't end simultaneously.
 * To end simultaneously, `pathLength="1"` could be used, but it's not working in Safari yet.
 */

.uk-animation-stroke {
    animation-name: uk-stroke;
    stroke-dasharray: var(--uk-animation-stroke);
    animation-duration: @animation-stroke-duration;
}


/* Direction modifier
 ========================================================================== */

 .uk-animation-reverse {
    animation-direction: reverse;
    animation-timing-function: ease-in;
}


/* Duration modifier
 ========================================================================== */

 .uk-animation-fast { animation-duration: @animation-fast-duration; }


/* Toggle (Hover + Focus)
========================================================================== */

/*
 * The toggle is triggered on touch devices using `:focus` and tabindex
 */

.uk-animation-toggle:not(:hover):not(:focus) [class*='uk-animation-'] { animation-name: none; }

/*
 * 1. Prevent tab highlighting on iOS.
 */

.uk-animation-toggle {
    /* 1 */
    -webkit-tap-highlight-color: transparent;
}

/*
 * Remove outline for `tabindex`
 */

.uk-animation-toggle:focus { outline: none; }


/* Keyframes used by animation classes
 ========================================================================== */

/*
 * Fade
 */

@keyframes uk-fade {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

/*
 * Slide Top
 */

@keyframes uk-fade-top {
    0% {
        opacity: 0;
        transform: translateY(-100%);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/*
 * Slide Bottom
 */

@keyframes uk-fade-bottom {
    0% {
        opacity: 0;
        transform: translateY(100%);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/*
 * Slide Left
 */

@keyframes uk-fade-left {
    0% {
        opacity: 0;
        transform: translateX(-100%);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/*
 * Slide Right
 */

@keyframes uk-fade-right {
    0% {
        opacity: 0;
        transform: translateX(100%);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/*
 * Slide Top Small
 */

@keyframes uk-fade-top-small {
    0% {
        opacity: 0;
        transform: translateY(-@animation-slide-small-translate);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/*
 * Slide Bottom Small
 */

@keyframes uk-fade-bottom-small {
    0% {
        opacity: 0;
        transform: translateY(@animation-slide-small-translate);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/*
 * Slide Left Small
 */

@keyframes uk-fade-left-small {
    0% {
        opacity: 0;
        transform: translateX(-@animation-slide-small-translate);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/*
 * Slide Right Small
 */

@keyframes uk-fade-right-small {
    0% {
        opacity: 0;
        transform: translateX(@animation-slide-small-translate);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/*
 * Slide Top Medium
 */

@keyframes uk-fade-top-medium {
    0% {
        opacity: 0;
        transform: translateY(-@animation-slide-medium-translate);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/*
 * Slide Bottom Medium
 */

@keyframes uk-fade-bottom-medium {
    0% {
        opacity: 0;
        transform: translateY(@animation-slide-medium-translate);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/*
 * Slide Left Medium
 */

@keyframes uk-fade-left-medium {
    0% {
        opacity: 0;
        transform: translateX(-@animation-slide-medium-translate);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/*
 * Slide Right Medium
 */

@keyframes uk-fade-right-medium {
    0% {
        opacity: 0;
        transform: translateX(@animation-slide-medium-translate);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/*
 * Scale Up
 */

@keyframes uk-fade-scale-02 {
    0% {
        opacity: 0;
        transform: scale(0.2);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/*
 * Scale Down
 */

@keyframes uk-fade-scale-18 {
    0% {
        opacity: 0;
        transform: scale(1.8);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/*
 * Kenburns
 */

@keyframes uk-scale-kenburns {
    0% { transform: scale(1); }
    100% { transform: scale(1.2); }
}

/*
 * Shake
 */

@keyframes uk-shake {
    0%, 100% { transform: translateX(0); }
    10% { transform: translateX(-9px); }
    20% { transform: translateX(8px); }
    30% { transform: translateX(-7px); }
    40% { transform: translateX(6px); }
    50% { transform: translateX(-5px); }
    60% { transform: translateX(4px); }
    70% { transform: translateX(-3px); }
    80% { transform: translateX(2px); }
    90% { transform: translateX(-1px); }
}

/*
 * Stroke
 */

 @keyframes uk-stroke {
    0% { stroke-dashoffset: var(--uk-animation-stroke); }
    100% { stroke-dashoffset: 0; }
}


// Hooks
// ========================================================================

.hook-animation-misc;

.hook-animation-misc() {}