*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}

article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
  display: block;
}

body {
  line-height: 1;
  overflow-x: hidden;
  background-color: #ffffff;
}

ol, ul {
  list-style: none;
}

blockquote, q {
  quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

body {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font: inherit;
  font-weight: 400;
  line-height: 1.2;
}

.inder-font {
  font-family: 'Inder', sans-serif;
}

.audiowide-font {
  font-family: 'Audiowide', cursive;
}

.inter-font {
  font-family: 'Inter', sans-serif;
}

html {
  font-size: 16px;
}

/* Адаптивная типография */
h1 { font-size: clamp(1.75rem, 5vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); }
h3 { font-size: clamp(1.25rem, 3.5vw, 1.75rem); }
h4 { font-size: clamp(1.125rem, 3vw, 1.5rem); }
h5 { font-size: clamp(1rem, 2.5vw, 1.25rem); }
h6 { font-size: clamp(0.875rem, 2vw, 1rem); }

p, li, a, span, div {
  font-size: clamp(0.875rem, 2vw, 1rem);
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  outline: none;
}

button:focus {
  outline: none;
}

button:active {
  outline: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  outline: none;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 2px solid #0066cc;
  outline-offset: 2px;
}

* {
  max-width: 100%;
}

p {
    font-size: 1rem;
    margin-top: 4vh;
}

li {
    margin-left: 1vw;
}

li::marker {
    color: #0098ea;
    font-size: 20px;
}

.firstLi {
    margin-top: 2vh;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 5vh;
}

h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 4vh;
}


.framework {
    position: absolute;
    width: 50vw;
    height: auto;
    left: 25vw;
    text-align: start;
    top: 17vh;
}

.mainHeading {
    font-size: 2rem;
    font-weight: 600;
}

.lastUpdate {
    font-style: italic;
    font-weight: 300;
}

a {
    color: #0098ea;
}

.end {
    width: 10px;
    height: 10px;
    margin-top: 10vh;
}

.heder {
    position: relative;
    flex-direction: row;
    display: flex;
    align-items: center;
    width: 100vw;

    height: 10vh;
    padding: 0 13vw;
}

.heder img {
    width: 50px;
}

.headerLogoText {
    margin-top: 0px;
    font-weight: 600;
    font-size: 1.4rem;
}

.leftGroup {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.5vw;
}

.back {
    width: 5vw;
    height: 5vh;
    background-color: #1E2337;
    margin-left: auto;
    border-radius: 1000px;
    color: #ffffff;
    font-weight: 500;
}

.topBtn {
    position: fixed;
    width: 40px;
    height: 40px;
    background-color: #1E2337;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    bottom: 6vh;
    right: 16vw;
    
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.topBtn.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.topBtn:hover {
    background-color: #2a314b;
    transform: scale(1.05);
}

.topBtn svg {
    width: 17px;
    margin-top: -1px;
}




.topBtn {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.topBtn:focus {
    outline: none !important;
}

button, a {
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

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

.back {
    -webkit-tap-highlight-color: transparent;
}

.back:focus {
    outline: none;
}



.langChange {
    display: flex;
    align-items: center;
    font-weight: 600;
    transition: transform 0.3s ease;
    margin-left: auto;
}

.langChange:active {
    transform: scale(0.9);
}

.networkLogo {
    margin-right: 0.3vw;
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.lang {
    margin: 0;
    line-height: 1;
    display: flex;
    align-items: center;
}


@media (max-width: 480px) {
    .framework {
        width: 90vw;
        left: 5vw;
    }

    .mainHeading {
        font-size: 1.7rem;
    }

    .lastUpdate {
        font-size: 0.9rem;
    }

    li {
        margin-left: 4vw;
    }

    li::marker {
        font-size: 20px;
    }


    .heder img {
        width: 40px;
    }

    .headerLogoText {
        font-size: 1rem;
    }

    .heder {
        padding: 0 5vw;
    }

    .back {
        width: 18vw;
        font-size: 0.8rem;
    }

    .topBtn {
        right: 12vw;
        width: 35px;
        height: 35px;
    }

    .topBtn svg {
        width: 16px;
        margin-top: -2px;
    }
}