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

body{
    font-family:Arial,Helvetica,sans-serif;
    color:#222;
    background:#f4f4f4;
}

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

header{
    background:#111;
    color:white;
    padding:20px 0;
}

.hero{
    background:linear-gradient(rgba(0,0,0,.65),rgba(0,0,0,.65)),
    url("https://images.unsplash.com/photo-1517438476312-10d79c077509?w=1600");
    background-size:cover;
    background-position:center;
    color:white;
    text-align:center;
    padding:120px 20px;
}

.hero h1{
    font-size:3rem;
    margin-bottom:20px;
}

.hero p{
    font-size:1.2rem;
    max-width:700px;
    margin:0 auto 35px;
}

.btn{
    display:inline-block;
    background:#d62828;
    color:white;
    padding:15px 35px;
    text-decoration:none;
    border-radius:5px;
    font-weight:bold;
}

.btn:hover{
    background:#b51f1f;
}

.features{
    padding:70px 0;
}

.features .container{
    display:flex;
    gap:25px;
    flex-wrap:wrap;
}

.card{
    flex:1;
    min-width:250px;
    background:white;
    padding:30px;
    border-radius:10px;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
}

.card h3{
    margin-bottom:15px;
}

.about{
    background:white;
    text-align:center;
    padding:80px 20px;
}

.about h2{
    margin-bottom:20px;
}

.about p{
    max-width:800px;
    margin:auto;
    line-height:1.8;
}

footer{
    background:#111;
    color:white;
    text-align:center;
    padding:50px 20px;
}

footer p{
    margin-top:10px;
}

.copyright{
    margin-top:30px;
    color:#aaa;
    font-size:.9rem;
}