body{
    font-family: sans-serif;
    background-color: #0B0F19;
}

.grid1{
    display: grid;
    grid-template-columns: 50px 50px 50px 50px;
    justify-content: center;
    grid-row-gap: 12px;
    grid-column-gap: 40px;
}

Button{
    text-align: center;
    height: 80px;
    width: 80px;
    font-size: 30px;
    border-radius: 12px;
    border-style: double;
    padding: 10px;
    margin-left: -10px;
    padding-top: 16px;
    padding-bottom: 16px;
    background-color: gray;
    color: whitesmoke;
}

#display{
    font-size: 62px;
    text-align: right;
    height: 120px;
    width: 400px;
    padding: 16px;
    background: #33363d;
    color: #FFFFFF;
    border: lightskyblue;
    border-radius: 12px;
    box-shadow: inset 0px 0px 8px 2px #020617;

}

.body_part{
    background-color: #1E293B;
    width: 440px;
    height: 615px;
    padding: 24px ;
    border-radius: 20px;
    margin-left: 424px;
    box-shadow:inset 0px 0px 8px 2px;
}

#num{
    border-color: #0F172A;
    background-color: #1F2937;
    box-shadow:inset 0px 0px 10px 2px #0F172A;
    color: #D1D5DB;
}

#num:hover{
    border-color: #162238 ;
    background-color: #4B5563;
    box-shadow:inset 0px 0px 8px 2px #162238;
    color: #FFFFFF;
}

#op{
    font-size: 45px;
    border-color: #1E40AF;
    background-color: #438DFB;
    box-shadow:inset 0px 0px 8px 2px #1E40AF;
    color: #FFFFFF;
}

#op:hover{
    font-size: 45px;
    border-color: #2563EB ;
    background-color: #60A5FA;
    box-shadow:inset 0px 0px 8px 2px #2563EB;
    color: #FFFFFF;
}

#cl{
    border-color: #991B1B;
    background-color: #C6443E;
    box-shadow:inset 0px 0px 8px 2px #991B1B;
    color: #7F1D1D;
}

#cl:hover{
    border-color: #701A1A ;
    background-color: #EF4444;
    box-shadow:inset 0px 0px 8px 2px #701A1A;
    color: #FFFFFF;
}

#eq{
    border-color: #065F46;
    background-color: #2EC77A;
    box-shadow:inset 0px 0px 8px 2px #065F46;
}

#eq:hover{
    border-color: #044E3B ;
    background-color: #34D399;
    box-shadow:inset 0px 0px 8px 2px #044E3B;
}

#do{
    border-color: #0F172A;
    background-color: #1F2937;
    box-shadow:inset 0px 0px 8px 2px #0F172A;
    color: #D1D5DB; 
}

#do:hover{
    border-color: #162238 ;
    background-color: #4B5563;
    box-shadow:inset 0px 0px 8px 2px #162238;
    color: #FFFFFF;
}

#per{
    border-color: #1E40AF;
    background-color: #438DFB;
    color: #FFFFFF ;
    box-shadow:inset 0px 0px 8px 2px #1E40AF;
    
}

#per:hover{
    border-color: #2563EB ;
    background-color: #60A5FA;
    box-shadow:inset 0px 0px 8px 2px #2563EB;
    color: #FFFFFF;
}

#de{
    border-color: #1E40AF;
    background-color: #438DFB;
    color: #D1D5DB;
    box-shadow:inset 0px 0px 8px 2px #1E40AF;
}

#de:hover{
    border-color: #2563EB ;
    background-color: #60A5FA;
    box-shadow:inset 0px 0px 8px 2px #2563EB;
    color: #FFFFFF;
}

.h1{
    text-align: center;
    font-size: 70px;
    color: whitesmoke;
    text-shadow: 0px 0px 4px #00e5ff, 0px 0px 18px #00e5ff;
}

.neon_mode{
    text-align: center;
    text-decoration: none;
    font-size: 25px;
    margin-left: 20px;
    color: black;
    text-shadow: 0px 0px 4px #00e5ff, 0px 0px 18px #00e5ff;
    background-color: #7CE5F7;
    width: 180px;
    padding: 15px;
    margin-left: 20px;
    border-radius: 15px;
    border: #7CE5F7;
    box-shadow: 0px 0px 4px 2px #7CE5F7 ;
}

.neon_mode:hover{
    text-align: center;
    text-decoration: none;
    font-size: 25px;
    margin-left: 20px;
    color: whitesmoke;
    text-shadow: 0px 0px 4px #00e5ff, 0px 0px 18px #00e5ff;
    background-color: #0B132B;
    width: 180px;
    padding: 15px;
    margin-left: 20px;
    border-radius: 15px;
    border: #FFFFFF;
    box-shadow: 0px 0px 4px 2px #FFFFFF ;
}