@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&dislpay=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    display: flex;
    height: auto;
    justify-content: center;
    align-items: center;
    min-height: 120vh;
    background: url('pictures/dark-background-abstract-background-network-3d-background-6016x3384-8324.png') no-repeat;
    background-size: cover;
    background-position: center;
}

header {
    position: fixed; 
    top: 0;
    left: 0;
    width: 100%;
    padding: 3px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 99;
}

.logo {
    margin-left: 30px;
    font-size: 2em;
    color: #dbffff;
    user-select: none;
    font-family: 'Poppins';
}

.navigation a {
    position: relative;
    font-size: 1.5em;
    color: #fff;
    text-decoration: none;
    font-weight: 81;
    margin-left: 10px;
    
}

.navigation a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 3px;
    background: #fff;
    border-radius: 5px;
    transform-origin: right;
    transform: scaleX(0);
    transition: transform .5s;

}

.navigation a:hover::after {
    transform-origin: left;
    transform: scaleX(1);
}

.navigation .btnLogin-popup {
    width: 100px;
    height: 50px;
    background: transparent;
    border: 2px solid #fff;
    outline: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.1em;
    color: #fff;
    font-weight: 500;
    margin-left: 10px;
    transition: .5s;

}

.navigation .btnLogin-popup:hover {
    background: #fff;
    color: #162938;
}

.wrapper {
    width: 80%;
    margin: 150px auto;
    display: flex;
    flex-direction: row;
    justify-content: center;
}

.content {
    padding: 10% 0;
}

.content h2 {
    color: #fff;
    margin: 14px 0;
}

.content p{
    color: #fff;
    width: 85%;
    margin: auto;
    font-size: 15px;
}

.content a{
    text-decoration: none;
    background: deepskyblue;
    color: #fff;
    padding: 10px 30px;
    display: inline-block;
    margin-top: 20px;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 2px;

}

.icon{
    width: 80px;
    height: 80px;
    background: #fff;
    margin: auto;
    border-radius: 50%;
}

.icon i{
    color: #000;
    line-height: 80px;
    font-size: 25px;
}

.single-box{
    width: 400px;
    height: 400px;
    margin: 0 15px;
    transition: .7s;
    background: linear-gradient(rgba(0,0,0,0.8),rgba(0,0,0,0.8)),url(pictures/ninja\ -\ Copy.jpg);
    text-align: center;
    color: #fff;
    background-size: cover;
    background-position: center center;
    border-radius: 20px;
}

.single-box:nth-child(2){
    background: linear-gradient(rgba(0,0,0,0.8),rgba(0,0,0,0.8)),url(pictures/Demon-Slayer-logo2.png);
}

.single-box:nth-child(3){
    background: linear-gradient(rgba(0,0,0,0.8)),url(pictures/pattern-vertical.jpg);
}

.single-box:hover{
    transform: scale(1.2);
    z-index: 2;
}