@font-face {
    font-family: charter;
    src: url('../fonts/charter-regular.otf');
    font-style: normal;
    font-weight: 400;
}
@font-face {
    font-family: charter;
    src: url('../fonts/charter-italic.otf');
    font-style: italic;
    font-weight: 400;
}
@font-face {
    font-family: charter;
    src: url('../fonts/charter-bold.otf');
    font-style: normal;
    font-weight:bold;
}
@font-face {
    font-family: charter;
    src: url('../fonts/charter-bold-italic.otf');
    font-style: italic;
    font-weight: bold;
}

:root {
    font-size: 18px;
    --white30:white ;
    --white20:#A5A3A5;
    --white10:#616161;

}

body {
    color: var(--white30);
    font-family: 'Nunito', sans-serif;
    background:  #251F24;
    margin: 0;
    
    
    /*font-family: charter;*/
}
a {
    color: var(--white30);
}
.header {
    /*position: sticky;
    inset-block-start: -45px;*/
}
.header-content {
    padding-inline: 20px ;
}

header {
    font-size: 14px;
    color: var(--white);
    margin-block-start: 20px;
    /*position: absolute;
    inset-block-start: 0;
    inset-inline-start: -208px;
    inline-size: 188px;*/
}
header li {
    color: var(--white20);
    margin-block-end: 16px;
}
header a {
    color: var(--white20);
    text-decoration: none;
}
header a:hover {
    color: var(--white30);
}
nav details summary {
    font-weight: bold;
}
h1 {
    font-size: 40px;
    margin-block-start: 20px;
    margin-block-end: 16px;
    font-weight: normal;

}

h2{
    font-size: 2em;
    font-weight: normal;
    margin-block: 40px;
}

h3 {
    font-size: 1.5em;
    font-weight: 600;
    margin-block: 16px;
}

hr {
    margin-block: 40px;
    border-color: rgba(97, 97, 97, 0.2) ;
}
pre {
    background:#3A3539;
    padding: 40px;
    overflow: auto;
    border-radius: 8px;
    border:10px solid #5551FF;
    box-shadow: -10px 10px 0 0 #ABAAF6 ;
    margin-block-end: 30px;
    border-radius: 50px;


}

p {
    color: var(--white20);
}
.hero {
    background-image:linear-gradient(96.07deg, #314755 30.63%, #26A0DA 102.18%), url('../images/patternlogical.png');
    
 
    block-size: 50px;
}
.section-content img {
    margin-block-start: 40px;
    display: block;
    max-inline-size: 100%;
}
.section-content {
    counter-reset: titleList;
}
.section-content h3 {
    counter-increment: titleList;
}
.section-content h3::before {
    content: counter(titleList, decimal)'. ';
}
/*.section-content h3::after {
    content: '';
    width: 32px;
    height: 4px;
    background: var(--white30ñ--);
    display: inline-block;
}*/

blockquote {
    margin-block-start: 80px;
    margin-block-end: 60px;
    background-color:#3A3539;
    border-radius: 8px;
    padding: 24px;
    line-height: 32px;
    font-size: 24px;
    margin: 1em 0px;
}
blockquote p {
    color: var(--white30);
}
.main hr {
    display: none;
}

.main {
    
    /*border: 1px solid red;*/

}

.wrapper {
    /*border: 1px solid yellow;*/
    max-inline-size: 902px;
    margin: auto;
}
.main-content {
    padding-inline: 16px;
   /* border: 1px solid blue;*/
}

.slider {
    /*border: 1px solid red;*/
}
.slider-container {
    /*block-size: 100px;*/
    display: block;
    overflow: auto;
    scroll-behavior: smooth;
    white-space: nowrap;
    font-size: 0;
   

}
.video {
    margin:0;
    /*border: 1px solid blue;*/
    display: inline-block;
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
}
.slider-bullet-list {
    /*border: 1px solid yellow;*/
    text-align: center;
    margin-block-start: 10px;
}
.slider-bullet {
    display: inline-block;
    inline-size: 15px;
    block-size: 15px;
    background: white;
    border-radius: 50%;
}

.form input {
    inline-size: 100%;
    border: 1px solid var(--white30);
    background: #251F24;
    box-sizing: border-box;
    border-radius: 8px;
    padding-inline: 16px;
    padding-block: 12px;
    color: var(--white30);
    font-size: 16px;
    display: block;
    margin-block-end: 24px;
}
.form input[type="submit"] {
    background: #157EFB;
    border:none;  
}
.form input::-webkit-input-placeholder {
    color: var(--white20);
}
@media screen and (min-width: 700px) {
    .hero {
        block-size: 350px;
    }
    .header {
        position: sticky;
        inset-block-start: -45px;
    }
    .header-content {
        position: relative;
        inset-block-start: 65px;
        padding-inline: 0;
    }
    
    header {
        position: absolute;
        inset-block-start: 0;
        inset-inline-start: -208px;
        inline-size: 188px;
    }
}