/*Обнуление*/
* {
    padding: 0;
    margin: 0;
    border: 0;
}

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

:focus,
:active {
    outline: none;
}

a:focus,
a:active {
    outline: none;
}

nav,
footer,
header,
aside {
    display: block;
}

html,
body {
    height: 100%;
    width: 100%;
    font-size: 100%;
    line-height: 1;
    font-size: 14px;
    -ms-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
}

input,
button,
textarea {
    font-family: inherit;
}

input::-ms-clear {
    display: none;
}

button {
    cursor: pointer;
}

button::-moz-focus-inner {
    padding: 0;
    border: 0;
}

a,
a:visited {
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

ul li {
    list-style: none;
}

img {
    vertical-align: top;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-size: inherit;
    font-weight: 400;
}

/*--------------------*/

.wrapper {
    width: 100%;
}

img {
    width: 100%;
}

.header {
    background: url('./img/backgroundHeader.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: 50%;
    width: 100%;
}

.header_content {
    width: 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
}

.pages {
    display: flex;
    justify-content: space-between;
    width: 150px;
    margin: 0 auto;
    margin-top: 30px;
    margin-bottom: 30px;
}

.pages a {
    text-decoration: none;
    color: #fff;
    text-shadow: 0px 0px 3px black, 0 0 3em rgb(0 0 0);
    font-size: 150%;
}

.download {
    display: block;
    margin: 0 auto;
    margin-top: 30px;
}

.header_text {
    color: #fff;
    text-shadow: 0px 0px 3px black, 0 0 3em rgb(0 0 0);
}

.header_contacts {
    display: flex;
    justify-content: center;
}

.header_tel {
    text-decoration: none;
    color: rgb(255, 255, 255);
}

.header_contacts a:last-child {
    margin-left: 15px;
    text-decoration: none;
}

.header_name {
    margin-top: 30px;
    font-size: 300%;
}

.header_title {
    margin: 0 auto;
    margin-top: 50px;
    font-size: 400%;
    max-width: 800px;
}

.header_subtitle {
    margin: 50px auto;
    font-size: 150%;
    max-width: 500px;
}

@media screen and (max-width: 530px) {
    .header_name {
        font-size: 200%;
    }

    .header_title {
        font-size: 300%;
    }

    .header_subtitle {
        font-size: 100%;
    }
}

@media screen and (max-width: 400px) {
    .header_name {
        font-size: 200%;
    }

    .header_title {
        font-size: 200%;
    }

    .header_subtitle {
        font-size: 80%;
    }
}

@media screen and (max-width: 340px) {
    .header_contacts {
        flex-direction: column;
    }

    .header_contacts a:last-child {
        margin-left: 0px;
    }
}

/* MAIN */

.main {
    width: 100%;
    margin: 0 auto;
    margin-top: 40px;
    max-width: 980px;
    padding: 0 20px;
}

.main_title {
    font-size: 300%;
    color: #0066B3;
}

.description_text {
    margin-top: 20px;
    line-height: 1.6;
    font-size: 140%;
}

.description_underline {
    text-decoration: underline;
    font-weight: bold;
}

.description_glitch {
    line-height: 1.6;
    font-size: 140%;
}

.description_list {
    margin-left: 15px;
}

.description_list li {
    line-height: 1.6;
    font-size: 120%;
    list-style-type: disc;
}

@media screen and (max-width: 510px) {
    .main_title {
        font-size: 200%;
    }

    .description_text {
        line-height: 1.3;
        font-size: 120%;
    }

    .description_glitch {
        line-height: 1.3;
        font-size: 120%;
    }

    .description_list li {
        line-height: 1.3;
        font-size: 100%;
    }
}

@media screen and (max-width: 510px) {
    .description_list {
        margin-left: 0px;
    }
}


.using {
    margin-top: 30px;
}

.using_content {
    background-color: #d7d5d5;
}

.accordion-collapse {
    background-color: #f4f4f4 !important;
}

.some-functions {
    margin-top: 30px;
}


/* FOOTER */

.footer {
    background-color: #cfe2ff;
    width: 100%;
    margin-top: 30px;
}

.footer_contacts {
    padding-top: 10px;
    display: flex;
    justify-content: center;
}

.footer_org_details {
    padding-top: 20px;
    display: flex;
    justify-content: center;
    flex-direction: column;
}

.footer_org_details p {
    margin: 0;
    margin-left: 20px;
    margin-right: 20px;
}

.tel {
    text-decoration: none;
    color: #000;
}

.tel p {
    margin-bottom: 0;
}

.footer_contacts a:last-child {
    margin-left: 15px;
    color: black;
    text-decoration: none;
}

.copyright {
    margin: 0 auto;
    max-width: 340px;
    padding: 0 20px;
}

@media screen and (max-width: 345px) {
    .copyright {
        font-size: 80%;
        max-width: 270px;
    }

    .footer_contacts {
        flex-direction: column;
        text-align: center;
    }

    .footer_contacts p {
        margin-bottom: 0;
    }

    .footer_contacts a:last-child {
        margin-left: 0px;
        margin-bottom: 5px;
    }
}

.price {
    margin-top: 30px;
}

.button {
    --width: 250px;
    --height: 85px;
    --tooltip-height: 35px;
    --tooltip-width: 250px;
    --gap-between-tooltip-to-button: 18px;
    --button-color: #1163ff;
    --tooltip-color: #fff;
    width: var(--width);
    height: var(--height);
    background: var(--button-color);
    position: relative;
    text-align: center;
    border-radius: 0.45em;
    font-family: "Arial";
    font-size: 200%;
    transition: background 0.3s;
}

.button::before {
    position: absolute;
    content: attr(data-tooltip);
    width: var(--tooltip-width);
    height: var(--tooltip-height);
    background-color: var(--tooltip-color);
    font-size: 0.9rem;
    color: #111;
    border-radius: .25em;
    line-height: var(--tooltip-height);
    bottom: calc(var(--height) + var(--gap-between-tooltip-to-button) + 10px);
    left: calc(50% - var(--tooltip-width) / 2);
}

.button::after {
    position: absolute;
    content: '';
    width: 0;
    height: 0;
    border: 10px solid transparent;
    border-top-color: var(--tooltip-color);
    left: calc(50% - 10px);
    bottom: calc(100% + var(--gap-between-tooltip-to-button) - 10px);
}

.button::after,
.button::before {
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s;
}

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

.button-wrapper,
.text,
.icon {
    overflow: hidden;
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    color: #fff;
}

.text {
    top: 0
}

.text,
.icon {
    transition: top 0.5s;
}

.icon {
    color: #fff;
    top: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.button:hover {
    background: #6c18ff;
}

.button:hover .text {
    top: -100%;
}

.button:hover .icon {
    top: 0;
}

.button:hover:before,
.button:hover:after {
    opacity: 1;
    visibility: visible;
}

.button:hover:after {
    bottom: calc(var(--height) + var(--gap-between-tooltip-to-button) - 20px);
}

.button:hover:before {
    bottom: calc(var(--height) + var(--gap-between-tooltip-to-button));
}

.download-doc {
    color: #fff;
    margin-top: 10px;
}

.download-doc a {
    color: #fff;
    font-size: 150%;
}