/*
https://codepen.io/ashleynolan/details/djpCG
*/

.ul_btn3d {
    list-style: none;
    margin: 0 auto;
    padding: 0;
    text-align: center;
}

.li_btn3d {
    display: inline-block;
    margin: 0 20px;
}

/* Base Button Style */
.btn3d {
    position: relative;
    display: block;
    width: 250px;
    margin: 20px auto;
    padding: 10px;
    background-color: #fff;
    border: 1px solid #ccc;
    color: #000;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    text-transform: uppercase;
    transform-style: flat;
    transition: all 250ms ease-out;
    cursor: pointer;
}

.btn3d:before, .btn3d:after {
    content: "";
    position: absolute;
    z-index: -2;
    transition: all 250ms ease-out;
}

.btn3d:focus {
    border-color: #66afe9;
    outline: 0;
    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, .6);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, .6);
}

.paper:focus {
    border-color: #66afe9;
    outline: 0;
    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, .6);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, .6);
}

/* Paper effect – slightly raised off background */
.paper {
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(128, 128, 128, 0.1) inset;
    border-color: #dedede;
}

/* Raised effect – pushes up on hover */
.paper-raise:before {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.paper-raise:hover {
    border: 1px solid #fff;
}

    .paper-raise:hover:before {
        box-shadow: 0 15px 10px -10px rgba(31, 31, 31, 0.5);
    }

.paper-raise-flatten {
    border-color: #fff;
    box-shadow: none;
}

    .paper-raise-flatten:before {
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        box-shadow: 0 15px 10px -10px rgba(31, 31, 31, 0.5);
    }

    .paper-raise-flatten:hover {
        border-color: #dedede;
    }

        .paper-raise-flatten:hover:before {
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(128, 128, 128, 0.1) inset;
        }

/* Lift effect – lifts sides on hover */
.paper-lift:before, .paper-lift:after {
    bottom: 15px;
    width: 50%;
    height: 20%;
    max-width: 300px;
    max-height: 100px;
    box-shadow: 0 10px 10px rgba(31, 31, 31, 0.5);
}

.paper-lift:before {
    left: 8px;
    transform: rotate(-3deg);
}

.paper-lift:after {
    right: 8px;
    transform: rotate(3deg);
}

.paper-lift:hover {
    border-color: transparent;
}

    .paper-lift:hover:before, .paper-lift:hover:after {
        box-shadow: 0 15px 12px rgba(31, 31, 31, 0.7);
    }

    .paper-lift:hover:before {
        left: 10px;
    }

    .paper-lift:hover:after {
        right: 10px;
    }

/* Flatten effect – flattens sides on hover */
.paper-flatten {
    border: 1px solid transparent;
}

    .paper-flatten:before, .paper-flatten:after {
        bottom: 15px;
        width: 50%;
        height: 20%;
        max-width: 300px;
        max-height: 100px;
        box-shadow: 0 15px 12px rgba(31, 31, 31, 0.7);
    }

    .paper-flatten:before {
        left: 10px;
        transform: rotate(-3deg);
    }

    .paper-flatten:after {
        right: 10px;
        transform: rotate(3deg);
    }

    .paper-flatten:hover {
        border-color: #ccc;
    }

        .paper-flatten:hover:before, .paper-flatten:hover:after {
            transition: box-shadow 600ms ease-out, left 200ms, right 200ms;
            box-shadow: 0 8px 8px rgba(31, 31, 31, 0.5);
        }

        .paper-flatten:hover:before {
            left: 5px;
        }

        .paper-flatten:hover:after {
            right: 5px;
        }

/* Curl effects – curls corners on hover */
.paper-curl:before, .paper-curl:after,
.paper-curl-right:before,
.paper-curl-right:after {
    bottom: 12px;
    width: 50%;
    height: 55%;
    max-width: 200px;
    max-height: 100px;
    box-shadow: 1px 8px 12px rgba(31, 31, 31, 0.6);
}

.paper-curl:before,
.paper-curl-right:before {
    left: 10px;
}

.paper-curl:after,
.paper-curl-right:after {
    right: 10px;
}

.paper-curl:hover:before, .paper-curl:hover:after,
.paper-curl-right:hover:before,
.paper-curl-right:hover:after {
    box-shadow: 1px 8px 12px rgba(31, 31, 31, 0.8);
}

.paper-curl:hover:before,
.paper-curl-right:hover:before {
    transform: skew(-8deg) rotate(-3deg);
}

.paper-curl:hover:after,
.paper-curl-right:hover:after {
    transform: skew(8deg) rotate(3deg);
}

.paper-curl:hover {
    border-radius: 0 0 40% 40% / 0 0 30% 30%;
}

.paper-curl-right:before {
    display: none;
}

.paper-curl-right:hover {
    border-radius: 0 0 40% 0 / 0 0 30% 0;
}

/* Curl effects – curls right hand side on hover */
.paper-curl-right-side:before, .paper-curl-right-side:after {
    right: 10px;
    width: 50%;
    height: 55%;
    max-width: 200px;
    max-height: 100px;
}

.paper-curl-right-side:before {
    top: 12px;
    box-shadow: 1px -4px 12px rgba(31, 31, 31, 0.6);
}

.paper-curl-right-side:after {
    bottom: 12px;
    box-shadow: 1px 4px 12px rgba(31, 31, 31, 0.6);
}

.paper-curl-right-side:hover {
    right: 0;
    border-radius: 0 3% 3% 0 / 0% 50% 50% 0;
}

    .paper-curl-right-side:hover:before {
        box-shadow: 10px -4px 12px rgba(31, 31, 31, 0.8);
        transform: skew(-8deg) rotate(-3deg);
    }

    .paper-curl-right-side:hover:after {
        box-shadow: 10px 4px 12px rgba(31, 31, 31, 0.8);
        transform: skew(8deg) rotate(3deg);
    }

.footerLink {
    position: absolute;
    bottom: 0;
    right: 0;
    padding: 10px 15px;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.8);
    border-radius: 5px 0 0 0;
    text-decoration: none;
    transition: 300ms;
}

    .footerLink:hover {
        background-color: rgba(60, 60, 60, 0.8);
    }