.navbar{
    display: flex;
    width: 100%;
    list-style: none;
    margin: 0;
    padding: 0;
    position: sticky;
    top: 0;
    background-color: rgba(58,58,58,0.1);
    z-index: 1000;
}

.navbar li.icon{
    margin-left:auto;
}
 ul{
            display: flex;
            list-style-type: none;
            margin: 0;
            padding: 0;
            overflow: hidden;
            position: sticky;
            background-color: rgba(58, 58, 58, 0.1);
            position: sticky;
            z-index: 1000;
            top: 0;
            border-color: rgb(58, 58, 58, 1);
            overflow: visible;
        }


        ul li{
            position: relative;
        }


        ul li a {
            display: block;
            color: rgba(58, 58, 58, 1);
            text-align: center;
            font-family: "Zilla Slab", serif;
            padding: 20px 16px;
        }
        ul li a.a{
            text-decoration: underline;
            text-underline-offset: 1em;
            color:#2f82c0;
        }
        ul li a.ia:hover{
            background-color: #9ed5ff;
        }


        a{
            text-decoration: none;
        }
.icon{
    display: flex;
    position: relative;
    justify-content: center;
    align-items: center;
    float: right;
    font-size:  1rem;
    width: 2.5rem;
    height: 2.5rem;
    border: solid white;
    color: rgb(41, 41, 41);
    background-color: gray;
    border-radius: 50%;
    font-weight: bold;
    margin: 0.5rem;
    cursor: pointer;
    

}

ul li.icon{
    margin-left: auto;
    position: relative;
}

.icon span{
    display: block;
    width: 100%;
    height: 100%;
    text-align: center;
    line-height: 2.5rem;
}
.icon #user-icon{
    width: 100%;
    height: 100%;
    align-items: center;
    text-align: center;
    line-height: center;
    border-radius: 50%;
    display: block;
}
.icon .dropdown{
display: none;
position: absolute;
top: 100%;
right: 0;
background-color: white;
min-width: 100px;
border-radius: 0.5rem;
z-index: 100;
flex-direction: column;
}

.icon .dropdown a{
    padding: 0.5rem 1rem;
    text-decoration: none;
    color:black;
    display: block
}

.icon .dropdown a:hover{
    background-color: rgb(215, 226, 251)
}

.icon:hover .dropdown, .icon .dropdown:hover{
    display: flex;
}
body, html{
        min-height: 100%;
        margin: 0;
        margin-bottom: 2%;
    }
    body{
       background-color: rgb(249, 249, 249);
       background-image:
        linear-gradient(rgba(0,0,0,0.035) 1px, transparent 1px),
        linear-gradient(90deg,rgba(0,0,0,0.035) 1px, transparent 1px);
     background-size: 40px 40px;
    }
   .arrow button{
                cursor: pointer;
                font-family: "Libertinus Math", system-ui;
                font-size: 2rem;
                border-radius: 50%;
                border: 2px solid transparent;
                box-shadow: 0 0 40px grey;
                margin-bottom: 2%;
                background-color: white;
                font-weight: bold;
                color: #0b5394;
                font-weight: bold;
                display: flex;
                justify-content: center;
                align-items: center;
                height: 4rem;
                width: 4rem;
                padding: 0;
                font-size: 2rem;
                border-radius: 50%;
                appearance: none;
                -webkit-appearance: none;
}
.arrow{
     position: sticky;
                top: 80px;
                left: 1rem;
                z-index: 500;
                margin-top: 1rem;
                margin-bottom: 1rem;
                margin-left: 1.5rem;
            }



            .arrow button:hover{
                color:#0b5394;
                box-shadow: 0 0 40px #0b5394;
                transform: translateY(-4px);
            }

.container{
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
    width: 900px;
    margin: auto;
    font-family: "Zilla Slab", serif;
    font-size: 1.5rem;
    
}
.mini-title{
    color: rgb(0, 84, 87);
    font-family: "Zilla Slab", serif;
    font-size: 25px;
    text-align: center;
    font-weight: bold;

}
.title{
    color: rgb(0, 84, 87);
    font-family: "Zilla Slab", serif;
    font-size: 40px;
    text-align: center;
    font-weight: bold;
    padding-top: 10px;
}

.paragraph{
    color: rgb(0, 0, 0);
    font-family: "Zilla Slab", serif;
    font-size: 20px;
    font-family: "Zilla Slab", serif;
}

.center{
    text-align: center;
}

.example{
    border-left: 10px solid rgb(0, 96, 160);
    padding-left: 10px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-right: 10px;
    margin: 20px 0;
    background-color: rgb(229, 245, 255);
    border-radius: 4px;
    text-align: center;
    font-family: "Zilla Slab", serif;
}

strong{
    font-weight: bold;
    color: rgb(0, 96, 160);
}

.tip{
    border-left: 10px solid rgb(55, 0, 143);
    padding-left: 10px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-right: 10px;
    background-color: rgb(237, 229, 255);
    border-radius: 4px;
    text-align: center;
}


@media (max-width: 600px){
    html, body{
        width: 100%;
        overflow-x: hidden;
    }
    .navbar, 
    ul{
        width: 100%;
        box-sizing: border-box;
    }

    ul li a {
        padding: 14px 10px;
        font-size: 1rem;
    }

    .arrow{
        position: sticky;
        top: 60px;
        margin-top: 0.75rem;
        margin-left: 0.75rem;
        margin-bottom: 0.75rem;
    }

    .arrow button{
        width: 3.2rem;
        height: 3.2rem;
        font-size: 1.6rem;
    }

    .container{
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        padding: 0 18px;
        gap: 12px;
        font-size: 1.2rem;
    }

    .title{
        font-size: 30px;
        padding-top: 5px;
        line-height: 1.15;
    }

    .mini-title{
        font-size: 21px;
        line-height: 1.2;
    }

    .paragraph{
        font-size: 18px;
        line-height: 1.45;
        width: 100%;
    }

    .example{
        width: 100%;
        box-sizing: border-box;
        border-left-width: 6px;
        padding: 10px;
        margin: 12px 0;
        font-size: 18px;
        line-height: 1.4;
    }

    .tip{
        width: 100%;
        box-sizing: border-box;
        border-left-width: 6px;
        padding: 10px;
        font-size: 18px;
        line-height: 1.4;
    }





}