body{
margin:0;
font-family:Arial, sans-serif;
}

.container{
margin:0 auto;
padding:0 20px;
}

section{
max-width:1200px;
margin: auto;
padding:80px 0;
text-align:center;
}

h1,h2{
margin:0;
}

.nav{
width:100%;
padding: 0;
background:#ffffff;
border-bottom:1px solid #ddd;
}

.nav-inner{
display:flex;
justify-content:space-between;
align-items:center;
height:70px;
}

.logo{
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img{
    width: 30px;
    height: fit-content;
}

.logo-text{
    font-size: 30px;
    font-weight: bold;
}

.menu a{
margin-left:20px;
text-decoration:none;
color:#333;
}

.menu button{
background:none;
border:none;
cursor:pointer;
font-size:16px;
margin-left:20px;
color:#333;
}

.menu button:hover{
color:#2c7a3f;
}

.nav-btn{
background:none;
border:none;
cursor:pointer;
font-size:16px;
margin-left:20px;
}

.hero{
position:relative;
height:650px;
color:white;
display:flex;
align-items:center;
text-align:left;

background-image:url("img/bg_1.png");
background-size:cover;
background-position:center;
padding: 0px;
}

.hero-inner{
    margin-left: 30px;
}

.hero-bg img{
position:absolute;
width:100%;
height:100%;
object-fit:cover;
left:0;
top:0;
z-index:-1;
}

.hero-text{
max-width:1200px;
width:100%;
padding:40px;
}

.hero h1{
font-size:48px;
margin-bottom:20px;
}

.hero p{
font-size:18px;
line-height:1.6;
}

.btn{
margin-top:20px;
padding:12px 25px;
background:#2c7a3f;
color:white;
border:none;
border-radius:5px;
cursor:pointer;
}

.features{
background:#f5f5f5;
}

.feature-grid{
margin-top:40px;
display:grid;
grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
gap:30px;
max-width:1200px;
margin-left:auto;
margin-right:auto;
}

.feature-card{
background:white;
padding:30px;
border-radius:10px;
box-shadow:0 5px 15px rgba(0,0,0,0.1);
}

.feature-card img{
width:210px;
margin-bottom:15px;
}

.cases{
background:white;
}

.case-grid{
margin-top:40px;
display:grid;
grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
gap:30px;
max-width:1200px;
margin:auto;
}

.case-card img{
width:100%;
padding-top: 30px;
object-fit:cover;
border-radius:10px;
}

.system{
background:white;
background-image:url("img/bg_4.png");
background-size:contain;
background-repeat: no-repeat;
background-position-x: center;
background-position-y: 84px;
padding: 0;
padding-top: 30px;
padding-bottom: 330px;
}

.system-img img{
width:100%;
max-width:1200px;
border-radius:10px;
}

footer{
max-width:1200px;
margin: auto;
background:#1e1e1e;
color:#aaa;
padding:40px 0px;

}

.footer-inner{
max-width:800px;
margin:auto;
}

.copy{
margin-top:20px;
font-size:13px;
}

@media(max-width:768px){

.hero{
height:500px;
}

.hero h1{
font-size:32px;
}

}