:root {
    --background-color: #f4f4f9;
    --text-color: #333;
    --header-bg-color: #0088cc;
    --nav-bg-color: #333;
    --service-bg-color: white;
    --footer-bg-color: #333;
}

@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #222;
        --text-color: #f4f4f9;
        --header-bg-color: #005580;
        --nav-bg-color: #0088cc;
        --service-bg-color: #333;
        --footer-bg-color: #005580;
    }
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
}

header {
    background-color: var(--header-bg-color);
    color: white;
    padding: 1rem 0;
    text-align: center;
}

nav {
    display: flex;
    justify-content: center;
    background-color: var(--nav-bg-color);
}

nav a {
    color: white;
    padding: 1rem;
    text-decoration: none;
}

nav a:hover {
    background-color: #575757;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 2rem 0;
}

.hero {
    background-color: var(--service-bg-color);
    padding: 2rem;
    text-align: center;
}

.services {
    display: flex;
    justify-content: space-around;
    padding: 2rem 0;
}

.service {
    background-color: var(--service-bg-color);
    padding: 1rem;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 30%;
    text-align: center;
    color: var(--text-color);
}

footer {
    background-color: var(--footer-bg-color);
    color: white;
    text-align: center;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}