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

body{
    font-family:Arial, Helvetica, sans-serif;
    line-height:1.7;
    color:#333;
    background:#fafafa;
}

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

header{
    background:#0d3b66;
    color:white;
    padding:20px 0;
    position:sticky;
    top:0;
    z-index:999;
}

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

header h1{
    font-size:24px;
}

nav{
    display:flex;
    gap:25px;
}

nav a{
    color:white;
    text-decoration:none;
    font-weight:bold;
    transition:.3s;
}

nav a:hover{
    color:#ffd166;
}

.hero{
    height:85vh;
    background:linear-gradient(rgba(13,59,102,.75),rgba(13,59,102,.75)),
    url("https://images.unsplash.com/photo-1517457373958-b7bdd4587205?auto=format&fit=crop&w=1600&q=80") center/cover;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    color:white;
}

.hero-content{
    width:80%;
    max-width:800px;
}

.hero h2{
    font-size:48px;
    margin-bottom:20px;
}

.hero p{
    font-size:20px;
    margin-bottom:30px;
}

.btn{
    display:inline-block;
    background:#ffd166;
    color:#222;
    padding:15px 35px;
    text-decoration:none;
    border-radius:40px;
    font-weight:bold;
    transition:.3s;
}

.btn:hover{
    background:white;
}

.section{
    padding:80px 0;
}

.section h2{
    text-align:center;
    color:#0d3b66;
    margin-bottom:40px;
    font-size:36px;
}

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

.gray{
    background:#f2f4f7;
}

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:30px;
}

.card{
    background:white;
    padding:30px;
    border-radius:12px;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
    transition:.3s;
}

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

.card h3{
    color:#0d3b66;
    margin-bottom:15px;
}

.contact-box{
    background:white;
    max-width:700px;
    margin:auto;
    padding:40px;
    border-radius:12px;
    box-shadow:0 10px 25px rgba(0,0,0,.08);
}

.contact-box p{
    margin-bottom:25px;
    font-size:20px;
}

footer{
    background:#0d3b66;
    color:white;
    text-align:center;
    padding:30px;
}

@media(max-width:768px){

header .container{
    flex-direction:column;
}

nav{
    margin-top:20px;
    flex-wrap:wrap;
    justify-content:center;
}

.hero h2{
    font-size:34px;
}

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

}