html, body {
    height: 100%;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: linear-gradient(to bottom, #a1c4fd, #c2e9fb);
    background-repeat: no-repeat;
    background-attachment: fixed;
    text-align: center;
}
.menu {
    list-style: none;
    margin: 0;
    padding: 0;
    background-color: rgba(0, 0, 0, 0.7);
}

.menu li {
    display: inline-block;
}

.menu li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 15px 20px;
    display: block;
}

.menu li a:hover {
    color: #ffdd57;
}

h1 {
    font-size: 60px;
    color: white;
    margin-top: 40px;
    text-shadow: 2px 2px 5px rgba(0,0,0,0.5);
}

.hero-img {
    max-width: 80%;
    height: auto;
    border-radius: 15px;
    margin-top: 20px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}