@font-face {
  font-family: Blogger;
  src: url(../fonts/blogger-sans.medium.ttf);
}

:root {
  font-size: 16px;
  --view-brackground: #212121;
  --white: #ffffff;
  --gray-content: #a5a3a5;
  --subtitle: Gagalin;
  --paragraph: Blogger;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--view-brackground);
  color: #ffffff;
  margin: 0;
}

h1 {
  font-family: "Roboto", sans-serif;
  margin-block-start: 64px;
  margin-block-end: 16px;
}

/* .header {
  /* position: sticky;
    inset-block-start: -45px; 
} */

.header-content {
  /* position: relative;
    inset-block-start: 65px; */
  margin-block-start: 35px;
  padding-inline-start: 16px;
}

header {
  font-size: 14px;
  /* position: absolute; */
  /* top */
  /* inset-block-start: 0;
    inset-inline-start: -208px;
    inline-size: 188px; */
}

header a {
  color: var(--gray-content);
  text-decoration: none;
  font-family: var(--paragraph);
}

header a:hover {
  color: var(--white);
}

header li {
  margin-block-end: 16px;
}

nav details summary {
  font-weight: bold;
  color: var(--white);
  font-family: "Roboto" sans-serif;
}

li {
  color: var(--gray-content);
}

h1 {
  font-size: 40px;
  margin-block-start: 20px;
}

h2 {
  font-size: 32px;
  font-family: "Roboto", sans-serif;
  margin-block: 40px;
}

h3 {
  font-size: 24px;
  font-weight: 600;
  margin-block: 16px;
}

.section-content {
  counter-reset: titleList;
}

.section-content h3 {
  counter-increment: titleList;
}

.section-content img {
  max-inline-size: 100%;
  margin-block-start: 40px;
  display: block;
}

.section-content h3::before {
  content: counter(titleList, decimal) ". ";
}
p {
  color: var(--gray-content);
  font-family: var(--paragraph);
}

.hero {
  background-image: linear-gradient(96.07deg, #314755 30.63%, #26a0da 102.18%);
  block-size: 50px;
}

hr {
  margin-block: 40px;
}

blockquote {
  margin-block-end: 80px;
  margin-block-start: 63px;
  background: #3a3539;
  border-radius: 8px;
  padding: 24px;
  line-height: 32px;
  font-size: 24px;
}

blockquote p {
  color: var(--white);
}

pre {
  background: #3a3539;
  padding: 40px;
  overflow: auto;
  border-radius: 8px;
  border: 10px solid #5551ff;
  box-shadow: -10px 10px 0 0 #abaaf6;
}

.main hr {
  display: none;
}

.wrapper {
  max-inline-size: 902px;
  margin: auto;
}

.main-content {
  padding-inline: 16px;
}

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

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

.slider-bullet-list {
  text-align: center;
  margin-block-start: 10px;
}

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

a {
  color: var(--white);
}

.form input {
  inline-size: 100%;
  border: 1px solid var(--white);
  background: transparent;
  box-sizing: border-box;
  border-radius: 8px;
  padding-inline: 16px;
  padding-block: 12px;
  color: var(--white);
  font-size: 16px;
  margin-block-end: 24px;
}

.form input[type="submit"] {
  background: #5551ff;
  border: none;
}

@media screen and (min-width: 1366px) {
  .hero {
    block-size: 350px;
  }

  h1{
    font-size: 60px;
    margin-block-start: 64px;
  }

  .header {
    position: sticky;
    inset-block-start: -30px;
  }

  .header-content {
    position: relative;
    inset-block-start: 50px;
  }

  header {
    position: absolute;
    /* top */
    inset-block-start: 0;
    inset-inline-start: -208px;
    inline-size: 188px;
  }
}

@media screen and (min-width: 1024px){
    .hero{
        block-size: 350px;
    }
}