* {
    margin: 0;
    padding: 0;
    font-family: 'Lato', sans-serif;
    background: linear-gradient(90deg, #E6E9F0 0%, #EEF1F5 100%);

}

body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    /* background:transparent; */
    /* background: url("/static/images/2048.png"); */
    /* background: linear-gradient(90deg, #E6E9F0 0%, #EEF1F5 100%); */
    background-size: cover;
    background-repeat: no-repeat;
    /* background-color: #64009b; */
    /* background: linear-gradient(90deg, #E6E9F0 0%, #EEF1F5 100%); */
    font-size: 100%;
}

.heading {
    position: relative;
    font-size: 5em;
    font-weight: bold;
    color: black;
    margin-bottom: 3%;
}


.grid_container {
    position: relative;
    width:  40vw;
    height: 80vh;

    display: grid;
    grid-template-rows:    repeat(4,1fr);
    grid-template-columns: repeat(4,1fr);
    gap: 0.5em;
    font-size: 4em;

    /* top: 100px; */
    /* top: calc(100% - 90%); */
}

.grid_container li {
    /* font-size: 4em; */
    /* border: 3px solid black; */
    width:  100%;
    height: 100%;
    /* box-shadow: 0px 0px 5px grey; */
    /* border-radius: 5px; */
    display: flex;
    justify-content: center;
    align-items: center;    
    font-size: 1em;


}

.c0 {
    color: black;
    /* background: #D8E3E5; */
    background: white;
    border:2px solid black;

}
.c2 {
    color: white;
    /* background: grey; */
    background: black;
    border: 2px solid white;
}
.c4{
    color:#FFFAFA;
    /* background:#a6aebd; */
    border: 2px solid #FFFAFA;
    background: #343434;
}
.c8{
    color: black;
    /* background: #D8E3E5; */
    background: white;
    border:2px solid black;
}

.c16 {
    color: white;
    background: #3b3938;
    border:2px solid white;
}

.c32 {    
    color: black;
    /* background: #D8E3E5; */
    background: white;
    border:2px solid black;

}

.c64 {
    color: white;
    /* background: grey; */
    background: black;
    border: 2px solid white;
}

.c128 {
    color: black;
    /* background: #D8E3E5; */
    background: white;
    border:2px solid black;

}

.c256 {
    color: black;
    /* background: #D8E3E5; */
    background: white;
    border:2px solid black;

}

.c512 {
    color: white;
    /* background: grey; */
    background: black;
    border: 2px solid white;
}

.c1024 {
    color: black;
    /* background: #D8E3E5; */
    background: white;
    border:2px solid black;
}
.c2048 {
    color: white;
    /* background: grey; */
    background: black;
    border: 2px solid white;
}
#game_over{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

#result{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    font-size: 200px;
    font-weight: bolder;
    color:black;
    text-shadow: white 0px 0px 10px;
    
}
.restart_btn{
    position: relative;
    margin-top: 100px;
    width: 150px;
    height: 50px;
    background:  black;
    font-size: 20px; 
    color: white;
    font-weight: bolder;
    border:none;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 12px 12px 51px#64009b ;
}
.restart_btn:hover{
    background: rgba(0,0,0,0.3);
    color: blue;
}

@media only screen and (max-width: 600px){
    /*Tablets [601px -> 1200px]*/
    body{
        background: linear-gradient(90deg, #E6E9F0 0%, #EEF1F5 100%);
        /* background: url("/static/images/min_2048.png"); */
        background-size: cover;
        background-repeat: no-repeat;
        /* background-color: #64009b; */
        font-size: 55%;
    }
    .grid_container {
        position: relative;
        top: 20px;

        width:  80vw;
        height: 60vh;
    
    
    
        display: grid;
        grid-template-rows:    repeat(4,1fr);
        grid-template-columns: repeat(4,1fr);
        gap: 0.5em;
        font-size: 4em;
    
        /* top: 100px; */
        /* top: calc(100% - 90%); */
    }
    .grid_container li {
        /* font-size: 4em; */
        width: 50px;
        height: 50px;
        border: 3px solid black;
        /* box-shadow: 0px 0px 5px grey; */
        /* border-radius: 5px; */
        display: flex;
        justify-content: center;
        align-items: center;    
    
    
    }
    
    #result{
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        position: relative;
        top: 100px;
        font-size: 140px;
        font-weight: bolder;
        color:black;
        text-shadow: white 0px 0px 10px;
        
    }
    .restart_btn{
        position: relative;
        width: 150px;
        height: 50px;
        background:  black;
        font-size: 20px;
        left: -20px; 
        color: white;
        font-weight: bolder;
        border:none;
        border-radius: 10px;
        cursor: pointer;
        box-shadow: 12px 12px 51px#64009b ;
    }
    
}
@media only screen and (max-width: 1200px){
    /*Tablets [601px -> 1200px]*/
    body{
        background: linear-gradient(90deg, #E6E9F0 0%, #EEF1F5 100%);
        /* background: url("/static/images/min_2048.png"); */
        background-size: cover;
        background-repeat: no-repeat;
        /* background-color: #64009b; */
        font-size: 55%;
    }
    .grid_container {
        position: relative;
        top: 20px;

        width:  80vw;
        height: 60vh;
    
    
    
        display: grid;
        grid-template-rows:    repeat(4,1fr);
        grid-template-columns: repeat(4,1fr);
        gap: 0.5em;
        font-size: 4em;
    
        /* top: 100px; */
        /* top: calc(100% - 90%); */
    }
    .grid_container li {
        /* font-size: 4em; */
        width:  150px;
        height: 150px;
        border: 3px solid black;
        /* box-shadow: 0px 0px 5px grey; */
        /* border-radius: 5px; */
        display: flex;
        justify-content: center;
        align-items: center;    
    
    
    }
    
    #result{
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        position: relative;
        top: 100px;
        font-size: 140px;
        font-weight: bolder;
        color:black;
        text-shadow: white 0px 0px 10px;
        
    }
    .restart_btn{
        position: relative;
        width: 150px;
        height: 50px;
        background:  black;
        font-size: 20px;
        left: -20px; 
        color: white;
        font-weight: bolder;
        border:none;
        border-radius: 10px;
        cursor: pointer;
        box-shadow: 12px 12px 51px#64009b ;
    }
}
@media only screen and (max-width: 425px){
	/*Small smartphones [325px -> 425px]*/
    body{
        background: linear-gradient(90deg, #E6E9F0 0%, #EEF1F5 100%);
        /* background: url("/static/images/min_2048.png"); */
        background-size: cover;
        background-repeat: no-repeat;
        /* background-color: #64009b; */
        font-size: 35%;
    }
    .grid_container {
        position: relative;
        top: 20px;

        width:  80vw;
        height: 40vh;
    
    
    
        display: grid;
        grid-template-rows:    repeat(4,1fr);
        grid-template-columns: repeat(4,1fr);
        /* gap: 0.5em; */
        font-size: 4em;
    
        /* top: 100px; */
        /* top: calc(100% - 90%); */
    }
    .grid_container li {
        /* font-size: 4em; */
        width:  50px;
        height: 50px;
        border: 3px solid black;
        /* box-shadow: 0px 0px 5px grey; */
        /* border-radius: 5px; */
        display: flex;
        justify-content: center;
        align-items: center;    
    
    
    }
    
    #result{
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        position: relative;
        top: 100px;
        font-size: 140px;
        font-weight: bolder;
        color:black;
        text-shadow: white 0px 0px 10px;
        
    }
    .restart_btn{
        position: relative;
        width: 150px;
        height: 50px;
        background:  black;
        font-size: 20px;
        left: -20px; 
        color: white;
        font-weight: bolder;
        border:none;
        border-radius: 10px;
        cursor: pointer;
        box-shadow: 12px 12px 51px#64009b ;
    }
}