* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    color: #333;
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #005caa;
    padding: 15px 30px;
}
.logo {
    height: 50px;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}
nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}
main {
    padding: 40px 20px;
    text-align: center;
}
footer {
    background-color: #005caa;
    color: white;
    text-align: center;
    padding: 15px;
    position: relative;
    bottom: 0;
    width: 100%;
}
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25d366;
    color: white;
    font-size: 24px;
    padding: 12px 16px;
    border-radius: 50%;
    text-decoration: none;
}