body.center::before{content:"";background:url("/static/backgrounds/nexus-security.svg") center/cover no-repeat,var(--bg)}body.center::before{position:fixed;inset:0;z-index:-1}body.center .langbar,body.center .brand-footer{background:color-mix(in srgb,var(--card) 88%,transparent);backdrop-filter:blur(8px);border-radius:10px;padding:4px 12px;width:max-content;max-width:calc(100% - 32px)}