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

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

.container{
    width:90%;
    max-width:1100px;
    margin:auto;
}

header{
    background:#1f2937;
    color:white;
    padding:18px 0;
}

header .container{
    display:flex;
    justify-content:space-between;
    align-items:center;
}

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

nav a:hover{
    color:#60a5fa;
}

.hero{
    background:linear-gradient(135deg,#2563eb,#1e40af);
    color:white;
    text-align:center;
    padding:100px 20px;
}

.hero h2{
    font-size:42px;
    margin-bottom:20px;
}

.hero p{
    font-size:18px;
    max-width:700px;
    margin:auto;
}

button{
    margin-top:30px;
    padding:14px 28px;
    border:none;
    border-radius:5px;
    background:white;
    color:#2563eb;
    font-size:16px;
    cursor:pointer;
    transition:.3s;
}

button:hover{
    background:#e5e7eb;
}

.section{
    padding:70px 0;
}

.light{
    background:#f5f7fa;
}

.section h2{
    text-align:center;
    margin-bottom:40px;
    color:#1e3a8a;
}

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:25px;
}

.card{
    background:white;
    padding:25px;
    border-radius:10px;
    box-shadow:0 5px 15px rgba(0,0,0,.08);
    transition:.3s;
}

.card:hover{
    transform:translateY(-6px);
}

.card h3{
    margin-bottom:15px;
    color:#2563eb;
}

#contact{
    text-align:center;
}

footer{
    background:#1f2937;
    color:white;
    text-align:center;
    padding:20px;
}

@media(max-width:768px){

header .container{
    flex-direction:column;
}

nav{
    margin-top:15px;
}

nav a{
    margin:0 10px;
}

.hero h2{
    font-size:30px;
}

}