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

body{
background:#f4f7fa;
color:#333;
}

header{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #0b6b3a;
    z-index: 1000;
}

body{
    padding-top: 80px;
}

header{
display:flex;
justify-content:space-between;
align-items:center;
padding:20px 10%;
background:#0b6b3a;
color:#fff;
}

.logo{
font-size:28px;
font-weight:bold;
}

nav a{
color:white;
text-decoration:none;
margin-left:20px;
}

.login-btn{
background:white;
color:#0b6b3a;
padding:10px 18px;
border-radius:5px;
}

.hero{
padding:100px 10%;
text-align:center;
background:linear-gradient(135deg,#0b6b3a,#17a34a);
color:white;
}

.hero h1{
font-size:55px;
margin-bottom:20px;
}

.hero p{
font-size:20px;
margin-bottom:35px;
}

.start-btn{
background:white;
color:#0b6b3a;
padding:15px 35px;
text-decoration:none;
border-radius:8px;
font-weight:bold;
}

.plans{
padding:80px 10%;
text-align:center;
}

.cards{
display:flex;
gap:25px;
justify-content:center;
margin-top:40px;
flex-wrap:wrap;
}

.card{
background:white;
padding:35px;
width:280px;
border-radius:10px;
box-shadow:0 10px 20px rgba(0,0,0,.08);
transition:.3s;
}

.card:hover{
transform:translateY(-8px);
}

.about{
padding:80px 10%;
background:#fff;
text-align:center;
}

.steps{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:20px;
margin-top:40px;
}

.steps div{
padding:25px;
background:#f0f5f2;
border-radius:8px;
}

footer{
background:#0b6b3a;
color:white;
text-align:center;
padding:20px;
margin-top:80px;
}

@media (max-width:768px){

header{
    flex-direction:column;
    padding:15px;
}

nav{
    margin-top:15px;
}

nav a{
    display:block;
    margin:10px 0;
}

.hero h1{
    font-size:36px;
}

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

.steps{
    grid-template-columns:1fr;
}

.cards{
    flex-direction:column;
    align-items:center;
}

}