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

body{
    font-family:Arial,Helvetica,sans-serif;
    background:#F3F4F6;
    color:#374151;
    line-height:1.8;
}

.container{
    max-width:900px;
    margin:40px auto;
    padding:20px;
}

.hero{
    text-align:center;
    margin-bottom:30px;
}

.hero h1{
    color:#2563EB;
    font-size:38px;
    margin-bottom:10px;
}

.subtitle{
    color:#6B7280;
    font-size:18px;
}

.card{
    background:#fff;
    border-radius:16px;
    padding:30px;
    margin-bottom:24px;

    box-shadow:0 5px 20px rgba(0,0,0,.08);
}

.card h2{
    color:#111827;
    margin-bottom:20px;
    border-bottom:1px solid #eee;
    padding-bottom:10px;
}

.card h3{
    margin-top:25px;
    margin-bottom:8px;
    color:#1F2937;
}

.updated{
    color:#6B7280;
    margin-bottom:20px;
}

ul{
    padding-left:22px;
}

li{
    margin-bottom:8px;
}

footer{
    text-align:center;
    color:#9CA3AF;
    padding:25px 0;
    font-size:14px;
}

@media(max-width:700px){

.container{
    padding:15px;
}

.card{
    padding:22px;
}

.hero h1{
    font-size:30px;
}

.subtitle{
    font-size:16px;
}

}