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

body{
    font-family:"Segoe UI", Roboto, Arial, sans-serif;
    background:#eef2f7;
    color:#2b2b2b;
    line-height:1.7;
}

.top-bar{
    background:#081f3f;
    color:#fff;
    font-size:13px;
    padding:6px 40px;
    display:flex;
    justify-content:space-between;
}

header{
    background:linear-gradient(135deg,#0b2c5f,#0f5fa8);
    color:#fff;
    padding:22px 0 18px 0;
    box-shadow:0 8px 25px rgba(0,0,0,0.2);
}

.header-main{
    text-align:center;
    padding:15px 0;
}

header h1{
    font-size:32px;
    font-weight:700;
    letter-spacing:1px;
    margin-bottom:12px;
}

nav{
    margin-top:10px;
}

nav a{
    display:inline-block;
    color:#fff;
    margin:0 18px;
    text-decoration:none;
    font-size:15px;
    font-weight:600;
    padding:6px 0;
    position:relative;
    transition:0.3s;
}

nav a::after{
    content:"";
    position:absolute;
    left:0;
    bottom:-4px;
    width:0;
    height:3px;
    background:#f4c430;
    transition:0.3s;
}

nav a:hover::after,
nav a.active::after{
    width:100%;
}

.container{
    max-width:1150px;
    margin:50px auto;
    background:#fff;
    padding:45px;
    border-radius:14px;
    box-shadow:0 25px 55px rgba(0,0,0,0.1);
}

.card{
    background:#fff;
    border-radius:14px;
    padding:35px;
    box-shadow:0 18px 40px rgba(0,0,0,0.08);
    margin-bottom:25px;
}

.section{
    margin-bottom:45px;
}

h2{
    font-size:28px;
    color:#0b2c5f;
    margin-bottom:15px;
    position:relative;
}

h2::after{
    content:"";
    display:block;
    width:80px;
    height:4px;
    background:#f4c430;
    margin-top:8px;
    border-radius:3px;
}

h3{
    font-size:20px;
    color:#0f5fa8;
    margin-bottom:10px;
}

p{
    font-size:16px;
    color:#444;
    margin-bottom:14px;
}

ul{
    margin-left:22px;
}

ul li{
    margin-bottom:10px;
    font-size:15px;
}

footer{
    background:#081f3f;
    color:#fff;
    text-align:center;
    padding:20px;
    font-size:14px;
    margin-top:70px;
}

@media(max-width:768px){
    .top-bar{
        flex-direction:column;
        gap:6px;
        padding:6px 20px;
    }
    header h1{
        font-size:24px;
    }
    nav a{
        margin:0 10px;
        font-size:14px;
    }
    .container{
        margin:30px 15px;
        padding:25px;
    }
    h2{
        font-size:24px;
    }
}