body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background: #f8f5f0;
    color: #333;
}
header {
    background: #8b0000;
    color: white;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
nav a {
    margin: 0 10px;
    color: white;
    text-decoration: none;
}
#hero {
    position: relative;
    height: 400px;
    overflow: hidden;
}
#hero video {
    width: 100%;
    height: auto;
}
.hero-text {
    position: absolute;
    top: 30%;
    left: 10%;
    color: white;
    text-shadow: 2px 2px 4px #000;
}
.btn-whatsapp {
    background: #25D366;
    color: white;
    padding: 10px 15px;
    text-decoration: none;
    display: inline-block;
    margin-top: 10px;
    border-radius: 5px;
}
footer {
    text-align: center;
    padding: 20px;
    background: #eee;
    margin-top: 20px;
}