html {
    font-size: 12px;
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: 'Azeret Mono', monospace;
    font-size: 1rem;
    line-height: 1.6;
    color: rgba(75, 75, 75, 1);
    background: rgba(201, 201, 201, 1)  url("img/pattern.jpg");
}
*,
*::before,
*::after {
    box-sizing: border-box;
}
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
}
p,
code {
    margin: 0;
}
.page {
    max-width: 1024px;
    width: 100%;
    margin: 0 auto;
    padding: 0 0;
    background: rgba(75, 75, 75, 1);
}
.contanier {
    display: flex;
    position: relative;
    width: 100%;
    min-height: 600px;
    position: relative;
    overflow: hidden;
}

/*header*/
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1rem 0;
    background: rgba(214, 236, 253, 1);
}
.header-title {
    width: 30%;
    padding-left: 2rem;
    font-size: 1.5rem;
    font-weight: 800;
    text-align: center;
}
.nav {
    display: flex;
    justify-content: space-between;
    width: 70%;
    margin-block-start: 0.5rem;
    margin-block-end: 0.5rem;
    margin-inline-end: 2rem;
    margin-inline-start: 2rem;
}
.header-nav-link{
    color: rgba(75, 75, 75, 1);
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
}
.header-nav-link:hover {
    font-weight: 900;
}
.hidden-link {
    display: none;
}

/*content*/
.content {
    width: 70%;
    padding: 0 2rem;
    margin: 0;
    color: rgba(255, 255, 255, 1);
    box-shadow: 0 0 10px rgba(75, 75, 75, 1);
}
.chapter {
    padding-top: 1rem;
}
.chapter-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: left;
    padding-left: 2rem;
}
.chapter-text {
    font-weight: 600;
}
#task {
    padding: 0.5rem 0.5rem;
    font-style: italic;
    font-weight: 400;
}
#code {
    margin: 0.5rem 0 0 0;
    background-color: rgba(112, 112, 112, 1);
    font-weight: 700;
    font-size: 1.2rem;
}
#code-insade {
    position: relative;
    width: 750px;
    left: -15rem;
    padding: 0;
    background-color: rgba(112, 112, 112, 0);
}
#project-view {
    width: 100%;
    text-align: center;
}
.project-link:hover {
    opacity: 0.7;
    transition: opacity 0.1s linear;
}
.project-img {
    width: 60%;
    padding-top: 1rem;
}

/* Sidebar*/
.sidebar {
    width: 30%;
    padding: 0 1rem;
    background-color: rgb(214, 236, 253);
}
.main-img {
    width: 100%;
}
.sidebar-chapter {
    text-align: left;
    font-weight: 600;
}
.sidebar-chapter-title {
    font-size: 1.5rem;
    font-weight: 900;
    text-align: center;
}
#contact-list {
    padding: 0.5rem 0;
    margin: 0;
    text-align: left;
}
.contact-list-cell {
    padding: 0.3rem 0;
    list-style-type: none;
}
.contact-icon {
    width: 1.3rem;
    text-align: center;
    vertical-align: middle;
}
.contact-link {
    text-decoration: none;
    color: rgb(75, 75, 75);
}
.contact-link:hover {
    text-decoration: underline;
}
.list {
    list-style-type: square;
}

/*footer*/
.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    padding: 1rem;
    background-color: rgb(214, 236, 253);
}
.footer-block {
    width: 33%;
    font-size: 2rem;
    line-height: 1;
    font-weight: 700;
    text-align: center;
    vertical-align: middle;
}
.footer-icon {
    height: 100%;
}