:root { 
    --white20: #FFFFFF; 
    --white10: #B8C1EC; 
    --blue: #232946;
    --pink: #EEBBC3;
    
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--blue);
    font-family: 'Montserrat', sans-serif;
    margin: 0;
}

header {
    padding: 0 16px;
}

nav details summary {
    line-height: 24px;
    font-size: 16px;
    font-weight: 500;
    color: var(--white20);
    margin-top: 20px;
}

header li {
    font-size: 14px;
    font-weight: 400;
    color: var(--white20);
    margin-bottom: 16px;
}

header a {
    color: var(--white20);
    text-decoration: none;
}
header li:hover, header a:hover {
    color: var(--white10);
}
  

.wrapper {
    width: 650px;
    margin: auto;
}

.main-content {
    max-width: 650px;
    padding: 0 16px;
}

.section-content {
    position: relative;
}

h1 {
    color: var(--white20);
    font-weight: 700;
    font-size: 64px;
    margin: 40px 0 16px;
}

h2 {
    color: var(--white20);
    font-weight: 500;
    font-size: 40px;
    margin-top: 40px;
    margin-bottom: 30px;
}

h3 {
    color: var(--white20);
    font-weight: 500;
    font-size: 28px;
    margin: 16px 0 16px;
}

p {
    color: var(--white10);
    font-weight: 400;
    font-size: 17px;
    margin: 16px 0 40px;
    line-height: 24px;
}

hr {
    border: 1px solid var(--white10);
    margin: 58px 0 40px;
}

.images {
    width: 100%;
}

blockquote {
    background-color: var(--pink);
    margin: 58px 0 40px;
    padding: 24px;
    border-radius: 8px;
}

blockquote p {
    color:  var(--blue);
    display: block;
    font-size: 18px;
    padding: 0;
    margin: 0;
    line-height: 24px;
}

.autor {
    margin-top: 24px;
}

.section-content h2{
    margin-top: 0;
}

pre {
    margin: 58px 0 31px;
    padding: 24px;
    border-radius: 8px;

    color:  var(--white10);
    font-size: 16px;
    line-height: 24px;
    padding: 0;
}

.image-css {
    margin-bottom: 40px;
}

.section3 p {
    margin-bottom: 24px;
}

.section3 ol, .section3 ul {
    margin-bottom: 40px;
}

.section3 ol li, .section3 ul li {
    margin-bottom: 16px;
    color: var(--white10);
}

.slider-container {
    display: block;
    overflow: auto;
    scroll-behavior: smooth;
    white-space: nowrap;
    font-size: 0;
}

.video {
    margin: 0;
    display: inline-block;
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
}

.link-direct-list {
    text-align: center;
    margin: 20px 0 40px 0;
}

.link-direct {
    display: inline-block;
    inline-size: 15px;
    block-size: 15px;
    background: white;
    border-radius: 50%;
}

.form input {
    display: block;
    box-sizing: border-box;
    background: var(--blue);
    border: 1px solid var(--white10);
    border-radius: 8px;
    color: var(--white20);
    font-size: 16px;
    inline-size: 100%;
    padding: 12px 16px;
    margin-bottom: 24px;
}
  
.form input[type="submit"] {
    background: #157EFB;
    border: none;
    margin-bottom: 40px;
}
  
.form input::-webkit-input-placeholder {
    color: var(--white10)
}

@media screen and (min-width: 1200px) {
    .header {
        position: sticky;
        top: 0px;
    }
    
    .header-content {
        position: relative;
        top: 0px;
        padding: 0;
    }
    
    header {
        padding: 0;
        position: absolute;
        width: 250px;
        top: 0px;
        left: -275px;
        z-index: 1;
    }
}