@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@100;200;300;400;500;600;700;800;900&display=swap');

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

html, body{
    font-family: 'Poppins', sans-serif;
    /* overflow: hidden; */
    height:100%;
}

ul{
    list-style: none;
}

a, a:visited{
    text-decoration: none;
    color: rgb(80, 80, 80);
}
/* a:hover{
    text-decoration: underline;
} */


header{
    position: sticky;
    top: 0px;
    background-color: #fafafa; 
    width: 100%;
    z-index: 1000;

    border-bottom:8px solid #E7E7E7;
}

section{
    position: relative;
    height: calc(100vh - 3rem);
    width: 100%;
    background: url('bg.jpg') no-repeat top center / cover;
    overflow: hidden;
}

.overlay{
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-color: rgb(56, 165, 238, 0.5);
}

.container{
    width: 120em;
    max-width: 100%;
    padding: 0 10%;
    margin: 0 auto;
    display: flex;
    position: relative;
    min-height:100%;
}

.logo-container{
    flex: 1;
    display: flex;
    align-items: center;
}

.nav-btn{
    flex: 3;
    display: flex;
}

.nav-links{
    flex: 2;
}

.log-sign{
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
}


.search{
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 2;
}

.search input{
    height: 30px;
    font-family: 'Poppins', sans-serif;
    border:none
}

.search input:hover{
    border: 2px solid #777;
}
.logo{
    color: rgb(80, 80, 80);
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: 2px;
    /* text-transform: uppercase; */
    line-height: 3rem;
}

.logo-icon{
    height: 48px;
    width: 48px;
}

.logo-link{
    color: rgb(80, 80, 80);
}

.btn{
    display: inline-block;
    padding: .5rem 1.3rem;
    font-size: .8rem;
    border: 2px solid #777;
    border-radius: 2rem;
    line-height: 1;
    margin: 0 .2rem;
    transition: .3s;
    /* text-transform: uppercase; */
}

.btn.solid, .btn.transparent:hover{
    background-color: #fff;
    color: #efefef;
}

.btn.transparent, .btn.solid:hover{
    background-color: transparent;
    color: #777;
}

.nav-links > ul{
    display: flex;
    justify-content: center;
    align-items: center;
}

.nav-link{
    position: relative;
}

.nav-link > a{
    line-height: 3rem;
    color: rgb(80, 80, 80);
    padding: 0 .8rem;
    letter-spacing: 1px;
    font-size: .95rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: .5s;
}

.nav-link > a > i{
    margin-left: .2rem;
}

.nav-link:hover > a{
    transform: scale(1.1);
}

.dropdown{
    position: absolute;
    top: 100%;
    left: 0;
    width: 10rem;
    transform: translateY(10px);
    opacity: 0;
    pointer-events: none;
    transition: .5s;
}

.dropdown ul{
    position: relative;
}

.dropdown-link > a{
    display: flex;
    background-color: #fff;
    color: #3498db;
    padding: .5rem 1rem;
    font-size: .9rem;
    align-items: center;
    justify-content: space-between;
    transition: .3s;
}

.dropdown-link:hover > a{
    background-color: #3498db;
    color: #fff;
}

.dropdown-link:not(:nth-last-child(2)){
    border-bottom: 1px solid #efefef;
}

.dropdown-link i{
    transform: rotate(-90deg);
}

.arrow{
    position: absolute;
    width: 11px;
    height: 11px;
    top: -5.5px;
    left: 32px;
    background-color: #fff;
    transform: rotate(45deg);
    cursor: pointer;
    transition: .3s;
    z-index: -1;
}

.dropdown-link:first-child:hover ~ .arrow{
    background-color: #3498db;
}

.dropdown-link{
    position: relative;
}

.dropdown.second{
    top: 0;
    left: 100%;
    padding-left: .8rem;
    cursor: pointer;
    transform: translateX(10px);
}

.dropdown.second .arrow{
    top: 10px;
    left: -5.5px;
}

.nav-link:hover > .dropdown,
.dropdown-link:hover > .dropdown{
    transform: translate(0, 0);
    opacity: 1;
    pointer-events: auto;
}

.hamburger-menu-container{
    flex: 1;
    display: none;
    align-items: center;
    justify-content: flex-end;
}

.hamburger-menu{
    position: absolute;
    right: 2rem;
    
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.hamburger-menu div{
    width: 1.6rem;
    height: 3px;
    border-radius: 3px;
    /* background-color: #fff; */
    background-color: rgb(20, 20, 20); /*color of hamburger-menu icon*/
    position: relative;
    z-index: 1001;
    transition: .5s;
}

.hamburger-menu div:before,
.hamburger-menu div:after{
    content: '';
    position: absolute;
    width: inherit;
    height: inherit;
    /* background-color: #fff; */
    background-color: rgb(20, 20, 20); /*color of hamburger-menu icon*/
    border-radius: 3px;
    transition: .5s;
}

.hamburger-menu div:before{
    transform: translateY(-7px);
}

.hamburger-menu div:after{
    transform: translateY(7px);
}

#check{
    position: absolute;
    top: 50%;
    right: 1.5rem;

    /* right: 1.5rem;
    padding-right: 2rem; */
    transform: translateY(-50%);
    width: 2.5rem;
    height: 2.5rem;
    z-index: 90000;
    cursor: pointer;
    opacity: 0;
    display: none;
}

#check:checked ~ .hamburger-menu-container .hamburger-menu div{
    background-color: transparent;
}

#check:checked ~ .hamburger-menu-container .hamburger-menu div:before{
    transform: translateY(0) rotate(-45deg);
}

#check:checked ~ .hamburger-menu-container .hamburger-menu div:after{
    transform: translateY(0) rotate(45deg);
}

@keyframes animation{
    from{
        opacity: 0;
        transform: translateY(15px);
    }
    to{
        opacity: 1;
        transform: translateY(0px);
    }
}



main{
    /* background-color:rgb(242, 243, 197); */
    min-height: 100%;
    padding-bottom:100px;
}

.main-nav{
    /* max-width: 20rem;
    min-width: 20rem; */
    width: 20%;
    /* background-color:rgb(164, 243, 245); */
    border-right:1px dashed  #E7E7E7;

    overflow:auto;
    white-space: nowrap;
}

.main-nav .main-nav-content{
    position: fixed;
}
.main-nav a:hover{
    text-decoration: underline;
}

.main-nav ul
{
    margin: 0;
    padding: 0;
    list-style: none;
    user-select: none;    
    padding-left: 0px;
}

.main-nav ul li{
    margin: 10 0;
    padding-left: 0.4em;
    list-style: none;
    user-select: none;
}

.main-nav li > ul, .main-nav li > ol {
	display: none;
    padding-left: 0.4em;
}

.main-nav input[type="checkbox"] {
    display: none;
	position: relative;
}

.main-nav label {
	position: relative;
	display: inline-block;
}


.main-nav label:after {
	/* content: ''; */
	position: static;
}

.main-nav input[type="checkbox"]:checked + ul, .tree-list input[type="checkbox"]:checked + ol{
	display: block;
} 




.main-article{
    width: 60%;
    word-wrap: break-word;
    padding-left: 1em;
    padding-right: 1em;
}


.main-article a, main-article a:visited{
    text-decoration: none;
    color: rgb(2, 88, 247);
}

.main-article a:hover{
    text-decoration: underline;
}


.main-article ul
{
    list-style: disc;
    user-select: none;    
    padding-left: 2em;  
}

.main-article ul li{
    padding-left: 0px;
    list-style: disc;
    user-select: none;
}

.main-article ol
{
    user-select: none;    
    padding-left: 2em;  
}

.main-article ol li{
    padding-left: 0px;
    user-select: none;
}


.nav-breadcrumb ul{
    padding: 0px 0px;
    margin-bottom: 20px;
    list-style: none;
    background-color: #fafafa;
}

.nav-breadcrumb ul> li {
    display: inline-block;
}

.nav-breadcrumb ul > li + li:before {
    padding: 0px 0px;
    color: #1c495f;
    content: "/\00a0";
}

.nav-breadcrumb ul > .active {
    color: #777;
}


.highlight pre code{
    color: #000;
    font-family: monospace, sans-serif;
}

code{
    color: #1aabf3;
    font-family: 'Poppins', sans-serif;
}


table {
    border-collapse: collapse;
    width: 100%;
    border: 1px solid #ddd;
    /* table-layout: fixed; */
    margin-top: 1em;
    margin-bottom: 1em;

}
  
th, td {
    text-align: left;
    padding: 8px;
    border: 1px solid #ddd;
    word-wrap:break-all;  
}

th {
    background-color: #c7cac7;

}
  
tr:nth-child(even) {
    background-color: #f2f2f2;
}

img{
    width:100%;
    height:auto;
}

pre{
    overflow: auto;
}

.WaveDrom{
    /* width:100%; */
    max-width: 100%;
    height:auto;   
    overflow: auto;
}

.main-article blockquote {
    display: block;
    margin-block-start: 1em;
    margin-block-end: 1em;
    margin-inline-start: 40px;
    margin-inline-end: 40px;
    border-left: 3px solid #E7E7E7;
    background: #fafafa;
}

.main-toc{
    /* max-width: 15rem;
    min-width: 15rem; */
    width: 20%;

    /* background-color:rgb(198, 241, 200); */
    border-left:1px dashed  #E7E7E7;
    padding-left: 1em;

    /* overflow:auto;
    white-space: nowrap; */
}

.main-toc a:hover{
    text-decoration: underline;
}


.main-toc .main-toc-content{
    position: fixed;
}

body #TableOfContents > ul {  
    padding-left: 0em;
    font-size: small;

}

body #TableOfContents > ul li { 
    padding-left: 1em;
    font-size:small;
}


footer{
    margin-top:-100px; 
    height: 100px; 
    width: 100%; 
    text-align: center; 
    line-height: 100px; 
    color: #ABA498; 
    background: #fafafa; 
    border-top:1px solid #E7E7E7;

}



:root {
    --menu-speed: 0.75s;
}

.menu-wrap {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}
.menu-wrap .toggler {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    height: 2.5rem;
    width: 2.5rem;
    cursor: pointer;
    z-index: 2;
}
.menu-wrap .hamburger {
    position: absolute;
    top: 0;
    left: 0;
    height: 50px;
    width: 60px;
    background: transparent; 
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

/* Hamburger line */
.menu-wrap .hamburger > div {
    position: relative;
    top: 0;
    left: 0;
    width: 1.6rem;
    height: 3px;
    background: rgb(20, 20, 20);
    flex: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.4s;
    opacity: 0;
}

/* Hamburger top & bottom line */
.menu-wrap .hamburger > div:before,
.menu-wrap .hamburger > div:after {
    content: "";
    position: absolute;
    /* top: 6px; */
    left: 0;
    background: inherit;
    /* height: 2px;
    width: 100%; */

    width: inherit;
    height: inherit;
    z-index: 1;
    border-radius: 3px;
}

.menu-wrap .hamburger div:before{
    transform: translateY(-7px);
}

.menu-wrap .hamburger div:after{
    transform: translateY(7px);
}

/* .menu-wrap .hamburger > div:after {
    top: -6px;
} */

/* Toggler Animation */
.menu-wrap .toggler:checked + .hamburger > div {
    transform: rotate(135deg);
}
.menu-wrap .toggler:checked + .hamburger > div:before,
.menu-wrap .toggler:checked + .hamburger > div:after {
    top: 0;
    transform: rotate(90deg);
}

/* Rotate on hover when checked */
.menu-wrap .toggler:checked:hover + .hamburger > div {
    transform: rotate(225deg);
}
.menu {
    padding-top: 3em;
    /* margin-top: 3em; */
    /* position: fixed
    top: 0;
    left: 0; */
    background: #ABA498;
    height: 100vh;
    width: 0vh;
    /* display: flex; */
    /* align-items: center;
    justify-content: center;
    text-align: center; */
    opacity: 0;
    transition: all var(--menu-speed) ease;
}
.menu > div {
    /* position: relative;
    top: 0;
    left: 0; */
    /* height: 100%;
    width: 100%;
    flex: none;
    display: flex; */
    /* align-items: center;
    justify-content: center;
    text-align: center; */
    opacity: 0;
    transition: opacity 0.4s ease-in;
}
.menu ul {
    list-style: none;
}

.menu ul li {
    margin: 10 0;
    padding-left: 1em;
    list-style: none;
    user-select: none;
}

.menu ol {
    list-style: none;
}

.menu li > ul, .menu li > ol {
	display: none;
    padding-left: 1em;
}


.menu input[type="checkbox"] {
	display: none;
	position: relative;
}
.menu input[type="checkbox"]:checked + ul, .tree-list input[type="checkbox"]:checked + ol{
	display: block;
} 

.menu > div a {
    text-decoration: none;
    color: #302d2d;
    font-size: 1.5rem;
    opacity: 0;
    transition: opacity 1s ease-in;
}
.menu a:hover {
    color: rgb(230, 177, 177);
    transition: color 0.3s ease-in;
}

/* Show Menu */
.menu-wrap .toggler:checked ~ .menu {
    opacity: 1;
    width: 90vw;
    transition: all var(--menu-speed) ease;
}
.menu-wrap .toggler:checked ~ .menu > div {
    opacity: 1;
    transition: opacity 0.4s ease-in;
}
.menu-wrap .toggler:checked ~ .menu > div a {
    opacity: 1;
    transition: opacity 1s ease-in;
}



@media (max-width: 716px){


    .container{
        width: 100%;
        padding: 0;
    }

    .hamburger-menu-container{
        display: flex;
    }

    #check{
        display: block;
    }

    .menu-wrap .hamburger > div{
        opacity: 1;
        display: block;
    }

    .nav-btn{
        position: fixed;
        height: calc(100vh - 3rem);
        top: 3rem;
        left: 0;
        width: 100%;
        background-color: #69bde7;
        flex-direction: column;
        align-items: center;
        justify-content: space-between;
        overflow-x: hidden;
        overflow-y: auto;
        transform: translateX(100%);
        transition: .65s;
    }

    #check:checked ~ .nav-btn{
        transform: translateX(0);
    }

    #check:checked ~ .nav-btn .nav-link,
    #check:checked ~ .nav-btn .log-sign{
        animation: animation .5s ease forwards var(--i);
    }

    .nav-links{
        flex: initial;
        width: 100%;
    }

    .nav-links > ul{
        flex-direction: column;
    }

    .nav-link{
        width: 100%;
        opacity: 0;
        transform: translateY(15px);
    }

    .nav-link > a{
        line-height: 1;
        padding: 1.6rem 2rem;
    }

    .nav-link:hover > a{
        transform: scale(1);
        background-color: #50a9d6;
    }

    .dropdown, .dropdown.second{
        position: initial;
        top: initial;
        left: initial;
        transform: initial;
        opacity: 1;
        pointer-events: auto;
        width: 100%;
        padding: 0;
        background-color: #3183ac;
        display: none;
    }
    
    .nav-link:hover > .dropdown,
    .dropdown-link:hover > .dropdown{
        display: block;
    }

    .nav-link:hover > a > i,
    .dropdown-link:hover > a > i{
        transform: rotate(360deg);
    }

    .dropdown-link > a{
        background-color: transparent;
        color: #fff;
        padding: 1.2rem 2rem;
        line-height: 1;
    }

    .dropdown.second .dropdown-link > a{
        padding: 1.2rem 2rem 1.2rem 3rem;
    }

    .dropdown.second .dropdown.second .dropdown-link > a{
        padding: 1.2rem 2rem 1.2rem 4rem;
    }

    .dropdown-link:not(:nth-last-child(2)){
        border-bottom: none;
    }

    .arrow{
        z-index: 1;
        background-color: #69bde7;
        left: 10%;
        transform: scale(1.1) rotate(45deg);
        transition: .5s;
    }

    .nav-link:hover .arrow{
        background-color: #50a9d6;
    }

    .dropdown .dropdown .arrow{
        display: none;
    }

    .dropdown-link:hover > a{
        background-color: #3a91bd;
    }

    .dropdown-link:first-child:hover ~ .arrow{
        background-color: #50a9d6;
    }

    .nav-link > a > i{
        font-size: 1.1rem;
        transform: rotate(-90deg);
        transition: .7s;
    }

    .dropdown i{
        font-size: 1rem;
        transition: .7s;
    }

    .log-sign{
        flex: initial;
        width: 100%;
        padding: 1.5rem 1.9rem;
        justify-content: flex-start;
        opacity: 0;
        transform: translateY(15px);
    }

    .logo-container
    {
        padding-left: 60px;
    } 



    .main-nav{
        width: 0px;
        display: none;
    }

    .main-article{
        width: 100%;
        word-wrap: break-word;  
    }
    .main-toc{
        width: 0px;
        display: none;
    }



    .menu-wrap .toggler:checked ~ .menu {
        width: 90vw;
    }


}