body{
    margin:0;
    font-family:Arial,sans-serif;
    background:#111;
    color:#f4f4f4;
    line-height:1.6;
}
header{
    background:#0d0d0d;
    border-bottom:2px solid #ff7a00;
    padding:20px;
}
.logo{
    font-size:2rem;
    font-weight:bold;
    color:#ff7a00;
}
nav a{
    color:#fff;
    text-decoration:none;
    margin-right:20px;
}
.hero{
    padding:80px 40px;
    background:linear-gradient(rgba(0,0,0,.7),rgba(0,0,0,.7)), url('https://images.unsplash.com/photo-1519003722824-194d4455a60c');
    background-size:cover;
}
.hero h1{
    font-size:3rem;
    max-width:700px;
}
.hero p{
    max-width:700px;
    font-size:1.2rem;
}
.btn{
    display:inline-block;
    margin-top:20px;
    padding:15px 25px;
    background:#ff7a00;
    color:#fff;
    text-decoration:none;
    border-radius:5px;
}
.container{
    max-width:1200px;
    margin:auto;
    padding:40px 20px;
}
.card-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:20px;
}
.card{
    background:#1a1a1a;
    padding:25px;
    border:1px solid #2d2d2d;
    border-radius:8px;
}
.card h3{
    color:#ff7a00;
}
footer{
    background:#0a0a0a;
    text-align:center;
    padding:30px;
    border-top:1px solid #333;
    margin-top:40px;
}
.article{
    max-width:900px;
    margin:auto;
    padding:40px 20px;
}
.article h1{
    color:#ff7a00;
}
.article h2{
    margin-top:40px;
}