.slider {
    height: 400px;
    position: relative;
    overflow: hidden;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-flow: row nowrap;
    -ms-flex-flow: row nowrap;
    flex-flow: row nowrap;
    -webkit-box-align: end;
    -webkit-align-items: flex-end;
    -ms-flex-align: end;
    align-items: flex-end;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
}

.slider__nav {
    width: 12px;
    height: 12px;
    margin: 2rem 12px;
    border-radius: 50%;
    z-index: 10;
    outline: 6px solid #ccc;
    outline-offset: -6px;
    box-shadow: 0 0 0 0 #333, 0 0 0 0 rgba(51, 51, 51, 0);
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.slider__nav:checked {
    -webkit-animation: check 0.4s linear forwards;
    animation: check 0.4s linear forwards;
}

.slider__nav:checked:nth-of-type(1)~.slider__inner {
    left: 0%;
}

.slider__nav:checked:nth-of-type(2)~.slider__inner {
    left: -100%;
}

.slider__nav:checked:nth-of-type(3)~.slider__inner {
    left: -200%;
}


.slider__inner {
    position: absolute;
    top: 0;
    left: 0;
    width: 300%;
    height: 100%;
    -webkit-transition: left 0.4s;
    transition: left 0.4s;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-flow: row nowrap;
    -ms-flex-flow: row nowrap;
    flex-flow: row nowrap;
}

.slider__contents {
    height: 100%;
    padding: 2rem;
    text-align: center;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-flex: 1;
    -webkit-flex: 1;
    -ms-flex: 1;
    flex: 1;
    -webkit-flex-flow: column nowrap;
    -ms-flex-flow: column nowrap;
    flex-flow: column nowrap;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
}


.slider__txt {
    color: #999;
    margin-bottom: 3rem;
    max-width: 600px;
}

@-webkit-keyframes check {
    50% {
        outline-color: #333;
        box-shadow: 0 0 0 12px #333, 0 0 0 36px rgba(51, 51, 51, 0.2);
    }

    100% {
        outline-color: #333;
        box-shadow: 0 0 0 0 #333, 0 0 0 0 rgba(51, 51, 51, 0);
    }
}

@keyframes check {
    50% {
        outline-color: #333;
        box-shadow: 0 0 0 12px #333, 0 0 0 36px rgba(51, 51, 51, 0.2);
    }

    100% {
        outline-color: #333;
        box-shadow: 0 0 0 0 #333, 0 0 0 0 rgba(51, 51, 51, 0);
    }
}








.slider__txt blockquote {
    margin: 10px 10px 0;
    background: #ffffff;
    padding: 20px 60px;
    position: relative;
    border: none;
    border-radius: 8px;
    font-style: italic;
    font-size: 18px;
}

.slider__txt blockquote:before,
.slider__txt blockquote:after {
    content: "\201C";
    position: absolute;
    font-size: 80px;
    line-height: 1;
    color: #757f9a;
    font-style: normal;
}

.slider__txt blockquote:before {
    top: 0;
    left: 10px;
}

.slider__txt blockquote:after {
    content: "\201D";
    right: 10px;
    bottom: -0.5em;
}

.slider__txt div {
    width: 0;
    height: 0;
    border-left: 0 solid transparent;
    border-right: 20px solid transparent;
    border-top: 20px solid #ffffff;
    margin: 0 0 0 60px;
}

.slider__txt p {
    margin: 8px 0 0 20px;
    text-align: left;
    color: #242020;
}


details{
    margin-bottom: 15px;
    margin-top: 15px;
}
details > div{
    font-size: 16px;
    color: #697cb0;
    padding: 10px;
}
details[open] summary~* {
    animation: sweep .5s ease-in-out;
}

@keyframes sweep {
    0% {
        opacity: 0;
        transform: translateX(-10px)
    }

    100% {
        opacity: 1;
        transform: translateX(0)
    }
}

.signup-form {
    padding: 20px;
    max-width: 500px;
    margin: auto;
    text-align: left;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="email"],
input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}




button[disabled]:active,
button[disabled],
input[type="button"][disabled]:active,
input[type="button"][disabled],
input[type="submit"][disabled]:active,
input[type="submit"][disabled],
button[disabled]:hover,
input[type="button"][disabled]:hover,
input[type="submit"][disabled]:hover{
    background-color: rgb(135, 129, 169);
    color: #666666;
    cursor: not-allowed;
    pointer-events: none;
    
}


.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-right: 10px;
    vertical-align: middle;
    border: 3px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.button-content {
    display: flex;
    align-items: center;
    justify-content: center;
}