html
{
    font-size: 62.5%;
}

body
{
    margin: 0;
    font-family:'poppins';
    background-color: rgba(229, 229, 203, 100%);
}

.wrapper
{
    max-width: 1200px;
    margin: 0 auto;    
}

/* NavBar */

header
{
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav
{
    margin: 4em;
}

nav ul
{
    list-style-type: none;
    display: flex;
    gap: 6.6em;
    margin: 0;
}

nav ul li a
{
    text-decoration: none;
    color: black;
    text-transform: capitalize;
    font-size: 1.5rem;
    position: relative;
}

nav a.active::before
{
    position: absolute;
    content: "";
    width: 85%;
    height: 1px;
    border-bottom: 2px solid black;
    bottom: -1px; 
}

nav ul li a::before
{
    position: absolute;
    content: "";
    width:0%;
    height: 1px;
    border-bottom: 2px solid rgb(138, 135, 135);
    bottom: -1px; 
    transition: width .8s;
}

nav ul li a:hover::before
{
    width: 85%;
}

main
{
    font-family: Arial, Helvetica, sans-serif;
    background: ;
    height: 100vh;
    overflow: hidden;
}

.center
{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    background: white;
    border-radius: 0px;
}

.center h1
{
    text-align: center;
    padding: 0 0 20px 0;
    border-bottom: 1px solid silver;
}

.center form
{
    padding: 0 40px;
    box-sizing: border-box;
}

form .txt-field
{
    position: relative;
    border-bottom: 2px solid #adadad;
    margin: 30px 0;
}

.txt-field input
{
    width: 100%;
    padding: 0 5px;
    height: 40px;
    font-size: 16px;
    border: none;
    background: none;
    outline: none;
}

.txt-field label
{
    position: absolute;
    top: 50%;
    left: 5px;
    color: #adadad;
    transform: translateY(-50%);
    font-size: 16px;
    pointer-events: none;
    transition: .5s;
}

.txt-field span::before
{
    content: "";
    position: absolute;
    top: 40px;
    left: 0;
    width: 0%;
    height: 2px;
    background: #2691d9;
    transition: .5s;
}

.txt-field input:focus ~ label,
.txt-field input:valid ~ label
{
    top: 5px;
    color: #2691d9;
}

.txt-field input:focus ~ span::before,
.txt-field input:valid ~ span::before
{
    width: 100%;
}

.pass
{
    margin: -5px 0 20px 5px;
    color: #a6a6a6;
    cursor: pointer;
}

.pass:hover
{
    text-decoration: underline;
}

input[type="submit"]
{
    width: 100%;
    height: 50px;
    border: 1px solid;
    background: rgba(0,0,0,25%);
    border-radius: 0px;
    font-size: 18px;
    color: white;
    font-weight: 700;
    cursor: pointer;
    outline: none;
}

input[type="submit"]:hover
{
    border-color: #2691d9;
    transition: .5s;
}

.signup-link
{
    margin: 50px 0;
    text-align: center;
    font-size: 16px;
    color: #666666;
}

.signup-link a
{
    color: #2691d9;
    text-decoration: none;
}

.signup-link a:hover
{
    text-decoration: underline;
}

#menu-bar
{
    display: none;
}

header label
{
    font-size: 2rem;
    color: #333;
    font-weight: bold;
    cursor: pointer;
    display: none;
}

@media all and (max-width: 758px)
{
    header
    {
        display: flex;
        justify-content: space-between;
        align-items: center;
        position: relative;
        z-index: 1000;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background: rgba(229, 229, 203, 100%);
    }

    header label
    {
        display: initial;
    }

    header nav
    {
        position: absolute;
        top: 100%;
        margin: 0; 
        left: 0;
        right: 0;
        background-color: lightgray;
        border-top: 1px solid black;
        display: none;
    }

    nav ul
    {
        list-style-type: none;
        display: grid;
        padding: 1em 0; 
        height: 50vh;
        margin: 0;
        gap:0;
    }

    #menu-bar:checked ~ nav
    {
        display: initial;
    }

    nav ul li
    {
        display: grid;

    }

    nav ul li a
    {
        text-decoration: none;
        color: black;
        text-transform: capitalize;
        font-size: 2.5rem;
        text-align: center;
        padding-top: 1em;
        font-weight: 400;
    }
    

    nav ul li a:hover
    {
        background-color: lightgrey;
    }

    nav a.active::before
    {
        position: absolute;
        content: "";
        width: 0;
        height: 0;
        border-bottom: none;
        bottom: 0; 
    }

    nav ul li a::before
    {
        position: absolute;
        content: "";
        width:0%;
        height: 0px;
        border-bottom: none;
        bottom: 0; 
        transition: width 0;
    }

    nav ul li a:hover::before
    {
        width: 0;

    }
}