/* General styles for all types of buttons */
.progress-button {
    position: relative;
    display: inline-block;
    padding: 0 60px;
    outline: none;
    border: none;
    background: $progressButtonBackground;
    color: $progressButtonColor;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 1em;
    line-height: 4;
    cursor: pointer;

    *, *:after, *::before {
        -webkit-box-sizing: border-box;
        -moz-box-sizing: border-box;
        box-sizing: border-box;
    }

    .notransition {
        -webkit-transition: none !important;
        transition: none !important;
    }

    &[disabled], &.disabled {
        cursor: default;
    }

    .content {
        position: relative;
        display: block;
        &:before, &:after {
            position: absolute;
            right: 20px;
            color: $progressButtonIconsColor;
            font-family: $progressButtonIconFontFamily;
            opacity: 0;
            -webkit-transition: opacity 0.3s 0.3s;
            transition: opacity 0.3s 0.3s;
        }

        &:before {
            content: $progressButtonSuccessIcon;
        }

        &:after {
            content: $progressButtonErrorIcon;
        }
    }

    &.state-success .content:before, &.state-error .content:after {
        opacity: 1;
    }

    .progress {
        background: $progressButtonProgressColor;
    }

    .progress-inner {
        position: absolute;
        left: 0;
        background: $progressButtonProgressInnerColor;
    }

    &-dir-horizontal {
        .progress-inner {
            top: 0;
            width: 0;
            height: 100%;
            -webkit-transition: width 0.3s, opacity 0.3s;
            transition: width 0.3s, opacity 0.3s;
        }
    }

    &-dir-vertical {
        .progress-inner {
            bottom: 0;
            width: 100%;
            height: 0;
            -webkit-transition: height 0.3s, opacity 0.3s;
            transition: height 0.3s, opacity 0.3s;
        }
    }

    /* Necessary 3d styles for buttons with perspective */
    &-perspective {
        position: relative;
        display: inline-block;
        padding: 0;
        background: transparent;
        -webkit-perspective: 900px;
        perspective: 900px;

        .content, .progress {
            outline: 1px solid rgba(0,0,0,0); /* Smoothen jagged edges in FF */
        }

        .progress-wrap {
            display: block;
            -webkit-transition: -webkit-transform 0.2s;
            transition: transform 0.2s;
            -webkit-transform-style: preserve-3d;
            transform-style: preserve-3d;
        }

        .content {
            padding: 0 60px;
            background: $progressButtonBackground;
        }

    }
}
