* {
    margin: 0;
    padding: 0;
    font-family: poppins;
    font-family: Ubuntu;
}

body {
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 100%;

}

h1 {
    font-weight: 500;
    color: rgb(149, 202, 235);
}

.sudoku-container {
    margin-top: 21px;
    display: flex;
    justify-content: center;


}

table {
    border-collapse: collapse;
    border: 5px solid  rgba(9, 9, 121, 1);

}

.cell {
    width: 40px;
    height: 40px;
    text-align: center;
    font-size: 20px;
    border: 1px solid #999;
    transform: all 0.3s ease-in-out;
    background: rgb(244, 213, 99);
}

table tr:nth-child(3n) td,
table tr:nth-child(3n+3) td {
    border-bottom: 2px solid rgba(9, 9, 121, 1);
}

table td:nth-child(3n) {
    border-right: 2px solid  rgba(9, 9, 121, 1);
}

input {
    outline: none;


}

a{
    text-decoration: none;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-buton {
    -webkit-appearance: none;
    margin: 0;

}

button {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 16px;
    background-color: #1665cc;
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-s:hover {
    background-color: #92d3ff;
    color: #1665cc;
}

.backHome a:hover,
.backHome:hover {
    text-decoration: none;
    background-color: #92d3ff;
    color: rgb(35, 107, 159);
}

.backHome,
.backHome a {
    padding: 12px;
    background-color: #1665cc;
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.1rem;
    cursor: pointer;
    margin-bottom: 10px;
}

.output-cell {
    color: #1e25e8;
}


@media (max-width:400px){

    .cell{
        width:10vw;
        height:10vw;
        font-size: 5vw;
    }
}
.navbar{
    /* margin-top: 25px; */
    display: flex;
    justify-content: center;
    align-items: center;
    justify-content: space-between;
    height: 67px;
    width: 100%;
    background:linear-gradient(#1e2b59 , #0f1d34 );
    border-bottom:1px solid #ffb780;
}
.image img{
    height: 55px;
    width: 55px;
}
.left-nav ul{
    display: flex;
    justify-content: center;
    align-items: center;
}
.left-nav ul li{
    list-style: none;
}
.left-nav ul li a{
    text-decoration: none;
    color: #ffb780;
    text-align: center;
    padding: 14px 20px;
    text-decoration: none;
    font-size: 1.3rem;
}
.left-nav ul li a:hover{
    text-decoration: underline;
}
.footer-container{
    border-top: 1px solid #ffb780;
    width: 100%;
    background:linear-gradient(#1e2b59 , #0f1d34 );
    padding: 20px;
    /* background: url(Image.png); */
     background-position: center;
     line-height: 2.5rem;
}
.foot-head h2{
    text-align: center;
    color: aqua;
    font-weight: 600;
}
.foot-head p{
    color: #ffb780;
    text-align: center;
    font-size: 1.20rem;
}
.foot-navlinks h3{
    text-align: center;
    color: aqua;
    font-weight: 600;
}
.foot-navlinks {
    text-align: center;
}
.foot-navlinks a{
    color: #ffb780;
    font-size: 18px;
    padding: 10px;
}
.foot-social {
    text-align: center;
}
.foot-social h3{
    color: aqua;
    font-weight: 600;
}
.foot-social a{
    font-size: 30px;
    color: #ffb780;
}
html{
    overflow-x: hidden;
}
.head{
    margin-top: 30px;
    margin-bottom: 20px;
}
.backHome{
    margin-bottom: 30px;
}
@media screen and (max-width:525px) {
    body{
        width: 100%;
    }
    html{
        overflow-x: hidden;
    }
  
    .navbar{
        width: 100%;
    }
    .left-nav ul li a{
        padding: 0px 9px;
    }
    
  }
  @media screen and (max-width:380px) {
    body{
        width: 100%;
    }
    html{
        overflow-x: hidden;
    }
  
    .navbar{
        width: 100%;
    }
    .left-nav ul li a{
        padding: 0px 9px;
    }
    
  }