/* Reset básico */
* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    overflow-x: hidden;
}

body {
    display: flex;
    flex-direction: column;
    background-color: #121212;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Main empuja el footer */
main {
    flex: 1;
    padding-top: 72px; /* altura del header fijo */
}

/* Links base */
a {
    color: inherit;
    text-decoration: none;
}