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

body{
    line-height:1.6;
    color:#333;
}

.container{
    width:90%;
    max-width:1200px;
    margin:auto;
}

header{
    background:#003366;
    color:white;
    text-align:center;
    padding:40px 20px;
}

header h1{
    font-size:42px;
}

nav{
    background:#00509d;
    text-align:center;
    padding:15px;
}

nav a{
    color:white;
    text-decoration:none;
    margin:0 15px;
    font-weight:bold;
}

.hero{
    background:#f4f4f4;
    text-align:center;
    padding:80px 20px;
}

.hero h2{
    font-size:36px;
    margin-bottom:15px;
}

.hero p{
    max-width:700px;
    margin:auto;
}

.btn{
    display:inline-block;
    margin-top:20px;
    background:#003366;
    color:white;
    padding:12px 25px;
    text-decoration:none;
    border-radius:5px;
}

section{
    padding:60px 0;
}

section h2{
    text-align:center;
    margin-bottom:30px;
    color:#003366;
}

.cards{
    display:flex;
    gap:20px;
    flex-wrap:wrap;
    justify-content:center;
}

.card{
    background:white;
    padding:25px;
    width:300px;
    text-align:center;
    border-radius:10px;
    box-shadow:0 2px 10px rgba(0,0,0,.1);
}

.features{
    max-width:700px;
    margin:auto;
    list-style:none;
}

.features li{
    padding:12px;
    border-bottom:1px solid #ddd;
}

.contact-box{
    max-width:700px;
    margin:auto;
    background:#f4f4f4;
    padding:30px;
    border-radius:10px;
}

footer{
    background:#003366;
    color:white;
    text-align:center;
    padding:20px;
}

@media(max-width:768px){

header h1{
    font-size:30px;
}

.hero h2{
    font-size:28px;
}

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

.card{
    width:100%;
}
}