* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: #222;
    background: #fafafa;
}


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


header {
    background: white;
    border-bottom: 1px solid #ddd;
    padding: 20px 0;
}


.logo {
    font-size: 22px;
    font-weight: bold;
    display: inline-block;
}


nav {
    float: right;
}


nav a {
    color: #444;
    text-decoration: none;
    margin-left: 25px;
}


.hero {
    padding: 100px 0;
    background: #f2f5f8;
}


.hero h1 {
    font-size: 48px;
    max-width: 700px;
}


.hero p {
    font-size: 20px;
    line-height: 1.6;
    max-width: 650px;
}


.button {
    display: inline-block;
    margin-top: 30px;
    padding: 14px 30px;
    background: #222;
    color: white;
    text-decoration: none;
}


.cards {
    display: flex;
    gap: 25px;
    padding: 60px 0;
}


.card {
    background: white;
    padding: 30px;
    flex: 1;
    border: 1px solid #ddd;
}


footer {
    padding: 30px 0;
    border-top: 1px solid #ddd;
    color: #777;
}