Constant SSO_CSS 

const SSO_CSS: &str = "body {\n\tfont-family: system-ui, -apple-system, sans-serif;\n\tdisplay: flex;\n\talign-items: center;\n\tjustify-content: center;\n\tmin-height: 100vh;\n\tmargin: 0;\n\tbackground: #151924;\n\tcolor: #f4f6f8;\n}\n\n.card {\n\ttext-align: center;\n\tpadding: 2.5rem;\n\tborder-radius: 12px;\n\tmax-width: 320px;\n\twidth: 90%;\n\tbackground: #222632;\n\tbox-shadow: 0 4px 20px rgba(0, 0, 0, .3);\n}\n\nh1 {\n\tfont-size: 1.25rem;\n\tmargin: 0 0 .5rem;\n}\n\np {\n\tmargin: 0;\n\tfont-size: .95rem;\n\tcolor: #9ca3af;\n}\n\n.complete .icon {\n\tbackground: #0dbd8b;\n\tcolor: #fff;\n\twidth: 64px;\n\theight: 64px;\n\tborder-radius: 50%;\n\tdisplay: flex;\n\talign-items: center;\n\tjustify-content: center;\n\tfont-size: 32px;\n\tmargin: 0 auto 1.5rem;\n}\n\n.required .card {\n\tpadding: 2.5rem 2rem;\n\tmax-width: 360px;\n}\n\n.required .icon {\n\tfont-size: 48px;\n\tmargin-bottom: 1rem;\n}\n\n.required h1 {\n\tmargin: 0 0 1rem;\n}\n\n.required p {\n\tmargin: 0 0 1.5rem;\n\tline-height: 1.5;\n}\n\n.btn {\n\tdisplay: inline-block;\n\tbackground: #00A36C;\n\tcolor: #fff;\n\ttext-decoration: none;\n\tpadding: 12px 24px;\n\tborder-radius: 8px;\n\tbox-shadow: 2px 2px 2px 2px black;\n\tfont-weight: 900;\n\tfont-size: 1rem;\n\ttransition: opacity .2s;\n\twidth: calc(100% - 48px);\n}\n\n.btn:hover {\n\topacity: .9;\n}\n\n.warning {\n\tmargin-top: 1.5rem;\n\tfont-size: .85rem;\n\tpadding: 12px;\n\tborder-radius: 8px;\n\tbackground: #811311;\n\tcolor: #fcd34d;\n}\n";