ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}
header {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header h1 {
    font-size: 80px;
}

header .container {
    margin-top: auto;
    margin-bottom: auto;
}

.nav {
    padding-top: 15px;
    padding-bottom: 15px;
}

.nav a {
    text-transform: uppercase;
    color: #ffffff;
    text-decoration: none;
}

.faq {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
}

.ask {
    width: 100%;
    color: #495057;
    text-align: inherit;
    position: relative;
    display: block;
    padding: 0.75rem 1.25rem;
    margin-bottom: -1px;
    background-color: #fff;
    border: 1px solid rgba(0, 0, 0, 0.125);
}

.ask:hover,
.ask:focus {
    color: #495057;
    text-decoration: none;
    background-color: #f8f9fa;
    z-index: 1;
}

.ask:active {
    color: #212529;
    background-color: #e9ecef;
}

.ask:first-child {
    border-top-left-radius: 0.25rem;
    border-top-right-radius: 0.25rem;
}

.ask:last-child {
    margin-bottom: 0;
    border-bottom-right-radius: 0.25rem;
    border-bottom-left-radius: 0.25rem;
}

.ask.active {
    z-index: 2;
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

.answer {
    position: relative;
    min-width: 0;
    word-wrap: break-word;
    background-color: #fff;
    background-clip: border-box;
    border: 1px solid rgba(0, 0, 0, 0.125);
    border-radius: 0.25rem;
    display: none;
    padding: 1rem;
}

section {
    padding-top: 50px;
    padding-bottom: 50px;
    min-height: 100vh;
}

section h2 {
    text-align: center;
    font-size: 50px;
}

section:nth-child(even) {
    background-color: darkkhaki;
}

section:nth-child(odd) {
    background-color: tomato;
}

.js-btn-top {
    position: fixed;
    bottom: -100%;
    right: 30px;
    transition: 0.5s;
}

.modal {
    background-color: rgba(0, 0, 0, 0.7);
}

.open-modal {
    overflow: hidden;
}

.tooltip {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-style: normal;
    font-weight: 400;
    font-size: 14px;
    line-height: 1.5;
    text-decoration: none;
    color: #fff;
    text-align: center;
    opacity: 1;
    min-width: 150px;
    width: auto;
    padding: 0.25rem 0.5rem;
    background-color: #000;
    border-radius: 5px;
    overflow: hidden;
    display: none;
    cursor: default;
    /*  */
    position: absolute;
    top: 110%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1010;
}

.text-hidden.hidden {
    display: none;
}

.read-more {
    color: blue;
}

.red,
.green,
.blue {
    color: #fff;
    padding: 1em;
    margin-bottom: 0.25em;
}

.red {
    background: #bd2130;
}

.green {
    background: #28a745;
}

.blue {
    background: #007bff;
}

.js-filter-card {
    padding: 0 15px;
    height: 50px;
    line-height: 50px;
    outline: 1.5px solid #fff;
}
.js-btn-top.show {
    bottom: 30px;
}