:root {
    --color-primary: #000000;
    --color-secondary: #ffffff;
    --font-primary: 'Roboto Mono', monospace;
}

/* Dark mode */
[data-theme="dark"] {
    --color-primary: #ffffff;
    --color-secondary: #000000;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--color-secondary);
    color: var(--color-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: var(--font-primary);
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 0;
}

header,
footer {
    height: 60px;
    min-height: 60px;
    display: flex;
    justify-content: center;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    font-family: var(--font-primary);
    background: var(--color-secondary);
    z-index: 2;
    margin-bottom: 20px;
}

footer {
    margin-top: 20px;
}

nav {
    display: flex;
    gap: 30px;
}

header a,
footer a {
    color: var(--color-primary);
    text-decoration: none;
}

header a:hover,
footer a:hover {
    text-decoration: underline;
}

/* Media Queries */
@media (max-width: 768px) {
    nav {
        gap: 20px;
    }
}

@media (max-width: 480px) {
    nav {
        gap: 15px;
    }
}

@media (max-height: 500px) {
    header,
    footer {
        height: 40px;
        min-height: 40px;
    }
}