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(width<=640px){.auth-grid{grid-template-columns:1fr}.auth-col:first-child{padding-right:0}.auth-col-alt{border-left:0;border-top:1px solid var(--line);margin-top:1.5rem;padding-top:1.5rem;padding-left:0}}.form-grid{grid-template-columns:1fr 1fr;align-items:start;gap:1.05rem 1.5rem;display:grid}.form-grid .form-col{align-content:start;gap:1.05rem;min-width:0;display:grid}@media (width<=640px){.form-grid{grid-template-columns:1fr}}.alt-auth{gap:.6rem;display:grid}.divider{color:var(--muted);align-items:center;gap:.75rem;margin:.25rem 0;font-size:.8rem;display:flex}.divider:before,.divider:after{content:"";background:var(--field-line);flex:1;height:1px}.alt-btn{color:var(--ink);background:var(--field);border:1px solid var(--field-line);cursor:pointer;text-align:center;border-radius:.6rem;justify-content:center;align-items:center;gap:.5rem;padding:.7rem 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.ico-system,:root[data-theme-mode=light] .theme-toggle .ico-sun,:root[data-theme-mode=dark] .theme-toggle .ico-moon,:root:not([data-theme-mode]) .theme-toggle .ico-system{display:inline-flex}@keyframes rise{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.card{animation:none}}.card-split{max-width:46rem}