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

body{

background:url("../images/background.png") no-repeat center center;
background-size:cover;
background-attachment:fixed;

min-height:100vh;

}

.overlay{

background:rgba(255,255,255,.88);

min-height:100vh;

display:flex;
flex-direction:column;

}

header{

display:flex;

justify-content:space-between;

align-items:center;

padding:20px 40px;

}

.logo img{

width:120px;

}

header h1{

font-size:50px;

color:#555;

flex:1;

text-align:center;

}

.nav{

display:flex;

gap:12px;

}

.nav img{

width:58px;

height:58px;

cursor:pointer;

transition:.3s;

}

.nav img:hover{

transform:scale(1.08);

}

main{

width:90%;

max-width:1200px;

margin:auto;

display:grid;

grid-template-columns:repeat(2,1fr);

gap:40px;

padding-bottom:30px;

}

.column h2{

font-size:48px;

margin-bottom:20px;

color:#555;

}

.item{

display:flex;

justify-content:space-between;

align-items:center;

background:white;

padding:15px 20px;

border:2px solid #9b9b9b;

border-radius:12px;

margin-bottom:18px;

box-shadow:0 3px 8px rgba(0,0,0,.18);

font-size:30px;

}

.item img{

width:35px;

cursor:pointer;

transition:.3s;

}

.item img:hover{

transform:scale(1.15);

}

.footer{
    position:fixed;
    bottom:0;
    left:0;
    width:100%;
    background:#777;
    color:#fff;
    text-align:center;
    padding:12px;
    font-size:14px;
}

/* Tablet */

@media(max-width:992px){

header h1{

font-size:38px;

}

.column h2{

font-size:36px;

}

.item{

font-size:22px;

}

}

/* Mobile */

@media(max-width:768px){

header{

flex-wrap:wrap;

gap:15px;

justify-content:center;

}

header h1{

width:100%;

font-size:32px;

order:3;

}

main{

grid-template-columns:1fr;

}

.logo img{

width:90px;

}

.nav img{

width:45px;

height:45px;

}

.column h2{

font-size:30px;

text-align:center;

}

.item{

font-size:18px;

padding:14px;

}

.item img{

width:28px;

}

}