html,
body {
    min-height: 100%;
    margin: 0;
}

body.hell-bg {
    background-color: #050505;
    background-image: none;
}

.hell-page-shell {
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* Optional readable glass/dark treatment for cards/panels */
.hell-surface {
    background: rgba(5, 5, 5, 0.62);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

@media (max-width: 768px) {
    body.hell-bg {
        background-image: none;
    }
}