.auth-container{background-color:var(--bg-dark);justify-content:center;align-items:center;min-height:100vh;font-family:Inter,sans-serif;display:flex}.auth-card{background:var(--bg-dark);border:2px solid var(--border-color);text-align:center;z-index:10;width:90%;max-width:440px;box-shadow:6px 6px 0px var(--border-color);border-radius:0;padding:3.5rem 3rem;position:relative}.back-link{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:.85rem;font-weight:800;text-decoration:none;transition:color .2s;position:absolute;top:1.5rem;left:1.5rem}.back-link:hover{color:var(--primary)}.auth-card h2{color:var(--text-main);text-transform:uppercase;letter-spacing:-.5px;margin:0 0 .5rem;font-size:2.25rem;font-weight:800}.auth-card p{color:var(--text-muted);margin-bottom:2.5rem;font-size:.95rem;font-weight:500;line-height:1.6}.sso-container{flex-direction:column;gap:1rem;display:flex}.sso-btn{box-sizing:border-box;border:2px solid var(--border-color);width:100%;color:var(--text-main);text-transform:uppercase;background:var(--bg-dark);border-radius:0;justify-content:center;align-items:center;gap:1rem;padding:1rem;font-size:1.05rem;font-weight:800;text-decoration:none;transition:all .2s;display:flex}.sso-btn:hover{background:var(--text-main);color:var(--bg-dark);border-color:var(--text-main);transform:translate(-4px,-4px);box-shadow:4px 4px #555}.sso-btn.btn-google{border-color:var(--border-color)}.sso-btn.btn-google:hover{background:var(--primary);border-color:var(--primary)}.sso-btn.btn-github,.sso-btn.btn-microsoft{border-color:var(--border-color)}.sso-icon{width:1.75rem;height:1.75rem;font-size:1.75rem}