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

.oo{
      margin: 0;
    min-height: 100vh;
        height: auto;
    background-image:linear-gradient(rgba(28,9,9,0.5), rgba(5,5,5,1)),url(https://i.pinimg.com/originals/ec/f5/c9/ecf5c9e8009ad580a2f1477a50704038.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center top;
    background-attachment: fixed;
    font-family: Cambria, Georgia, serif;
}



header{
    position: sticky;
    top: 10px;
    backdrop-filter: blur(25px);
    border-radius: 60px;
    border: 4px outset rgb(255, 89, 0);
    box-shadow: 0 0 10px rgba(244,39,39,0.8),
                0 0 25px rgba(230,74,74,0.6);
    padding: 15px;
}


header ul{
    display: flex;
    flex-direction: row;         
    justify-content: center;
    align-items: center;
    gap: 18px;
    list-style: none;
    flex-wrap: nowrap;            
}

.one{
    color: red;
    text-shadow: 1px 1px 4px;
    border: 3px solid rgb(255, 89, 0);
    border-radius: 15px;
    padding: 6px 18px;
    background-color: rgba(216, 60, 49, 0.25);
    font-size: 18px;
    white-space: nowrap;
}

header a{
    color: yellow;
    text-decoration: none;
    font-size: 15px;
    white-space: nowrap;
}

header li:hover{
    transform: scale(1.05);
}


h1{
    text-align: center;
    font-size: 90px;
    color: aliceblue;
    text-shadow: 5px 5px 10px red;
    margin-top: 40px;
}

.two{
    color: yellow;
    text-align: center;
    border-radius: 60px;
    border: 4px outset orange;
    box-shadow: 0 0 10px rgba(244,39,39,0.8),0 0 25px rgba(230,74,74,0.6);
    padding: 10px;
    width: 35%;
    margin: 20px auto;
}



h2{
    color: yellow;
    text-align: center;
    border-radius: 60px;
    border: 4px outset orange;
    box-shadow: 0 0 10px rgba(244,39,39,0.8),0 0 25px rgba(230,74,74,0.6);
    padding: 8px;
    width: 25%;
    margin: 40px auto;
}


.three{
    margin: 20px;
    border: 3px solid red;
    border-radius: 20px;
    box-shadow: 0 0 10px rgba(244,39,39,0.8),
                0 0 25px rgba(230,74,74,0.6);
}

p{
    background-color: black;
    color: aliceblue;
    padding: 20px;
    border-radius: 20px;
    line-height: 1.6;
}



.f1, .f2, .th, .tr{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 25px;
}
h4{
    color: rgb(252, 118, 22);
    padding-bottom: 10px;
}
.four{
    background: rgba(0,0,0,0.8);
    border: 2px solid orange;
    border-radius: 12px;
    box-shadow: 0 0 10px rgba(255,21,0,0.8);
    padding: 15px;
    text-align: center;
}

table{
    border: 2px solid red;
    width: 100%;
}

.five{
    background: rgba(239,5,5,0.45);
    color: yellow;
}
.eight{
    color: rgb(255, 8, 8);
    font-size: 15px;
    padding: 3px;    
}
.seven{

}
.six{
    color: white;
    font-size: 15px;
    padding: 3px;
}



.nine, .twelve{
    width: 280px;
    background: rgba(0,0,0,0.45);
    border: 2px solid orange;
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 0 15px rgba(255,106,0,0.6);
}

.eleven{
    color: white;
    padding: 15px;
}

.ten{
    color: orangered;
    font-size: 22px;
}



.button{
    background: darkorange;
    border-radius: 20px;
    padding: 10px 18px;
    border: 2px solid orange;
    font-size: 14px;
    display: block;
    margin: 10px auto 0;
}

.button:hover{
    transform: scale(1.1);
}



footer{
    color: white;
    text-align: center;
    margin: 25px;
}



@media (max-width: 768px){

    header ul{
        flex-wrap: wrap;    
        gap: 12px;
    }

    h1{
        font-size: 48px;
    }

    .two{
        width: 90%;
        font-size: 14px;
    }

    h2{
        width: 85%;
        font-size: 18px;
    }

    .nine, .twelve{
        width: 90%;
    }

    header a{
        font-size: 13px;
    }
}