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

body{
    font-family: "Noto Sans", sans-serif;
    font-weight: 400;
}
h1{
    text-align: center;
    padding-bottom: 15px;
    padding-top: 15px;
    padding-top: 15px;
}
header ul{
    display: flex;
    align-items: center;
    column-gap: 50px;
    background: #333;
    color: #fff;
    list-style: none;
    justify-content: center;
    padding-bottom: 30px;
    padding-top: 30px;
}
header ul li a{
color:#fff;
text-decoration: none;
font-weight: 600;    
}
p{
    font-size: 18px;
    line-height: 1.7;
}
.flex {
    display: flex;
    gap: 50px;
    justify-content: center;
    
}
.hero_section{
    background-color: #d3d3d3;
}
.hero_section img{
    width:100%;max-height: 60vh;object-fit: cover;
}
 .description{
    display: block;
    margin: auto;
    text-align: center;
    max-width: 70vw;
}
h2{
    margin-bottom: 50px;
}
h3{
    margin: 15px auto;
}
.sections:nth-child(odd){
    background-color: lightgray;
    padding: 50px 15px;
}
.text-center{
    text-align: center;
}
footer{
    text-align: center;
    background: #333;
    color: #fff;
    font-weight:600;
    padding-bottom: 20px;
    padding-top: 20px;
}
a.button {
    border: 1px solid;
    padding: 15px 15px;
    border-radius: 10px;
    color: #fff;
    background: #333;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    transition: 0.35s ease-in all;
}
a.button:hover{
    background: #d3d3d3;
    color: #333;
    transition: 0.35s ease-in all;
}
#isologismoi{
    padding-bottom: 70px;
    padding-top: 70px;
    position: relative;
    overflow: hidden;
}
#isologismoi:before{
background-image: url(file_back.png);
    display: block;
    content: '';
    position: absolute;
    height: 100%;
    width: 20%;
    background-repeat: no-repeat;
    background-size: contain;
    transform: rotate(21deg) scale(1.5);
    left: 20%;
    opacity: 0.55;
	z-index: -1;
}
#etairoi{
    padding: 70px 15px;
}

@media screen and (max-width:1024px){
    #isologismoi:before{
    left:13%;
    }
}
@media screen and (max-width:991px){
    #isologismoi .flex{
        flex-direction: column;
		align-items: center;
        justify-content: center;
        margin: auto;
    }
}
@media screen and (max-width:767px) {
    .flex{
        flex-direction: column;
    }  
    #isologismoi .flex{
        flex-direction: column;
    }
    #isologismoi:before{

    transform: rotate(0) scale(1.2);
    left: 10px;

    }
    .description{
        max-width: 100%;
    }
    h2,h3{
        margin-bottom: 30px;
    }
    h3{margin-top: 30px;}
    header ul{
        text-align: center;
        column-gap: 25px;
    }
}