.signup-shell{--bg:#0a1628;--bg-elev:#0f1f37;--bg-elev-2:#152a47;--ink:#f4efe7;--ink-dim:#cfc7bb;--ink-mute:#8b8377;--gold:#e4b84c;--carolina:#4b9cd3;--carolina-deep:#2e7cb0;--border:#1f3354;--border-strong:#2c476f;--danger:#e8847e;--danger-bg:#2a1413;--danger-border:#5a2b28;--serif:var(--font-serif),"Newsreader",Georgia,serif;--sans:var(--font-sans),"Inter Tight",system-ui,-apple-system,sans-serif;--mono:var(--font-mono),"JetBrains Mono",ui-monospace,monospace;background:var(--bg);color:var(--ink);font-family:var(--sans);min-height:100vh}.signup-shell *,.signup-shell :after,.signup-shell :before{box-sizing:border-box}.signup-shell input,.signup-shell select,.signup-shell textarea{background:var(--bg-elev);color:var(--ink);border:1px solid var(--border-strong);border-radius:8px;font-family:inherit}.signup-shell input::-moz-placeholder,.signup-shell textarea::-moz-placeholder{color:var(--ink);opacity:.5}.signup-shell input::placeholder,.signup-shell textarea::placeholder{color:var(--ink);opacity:.5}.signup-shell input[type=checkbox],.signup-shell input[type=radio]{accent-color:var(--carolina);width:auto}.signup-shell a:focus-visible,.signup-shell button:focus-visible,.signup-shell input:focus-visible,.signup-shell select:focus-visible,.signup-shell textarea:focus-visible{outline:2px solid var(--carolina);outline-offset:2px}.signup-shell a{color:var(--carolina)}.signup-shell label{color:var(--ink)}.signup-shell .field-error{border-color:var(--danger);background:var(--danger-bg)}.signup-shell button:disabled{opacity:.5;cursor:not-allowed!important;filter:grayscale(.4)}@keyframes signup-shake{0%,to{transform:translateX(0)}20%{transform:translateX(-6px)}40%{transform:translateX(5px)}60%{transform:translateX(-4px)}80%{transform:translateX(3px)}}.signup-shell .signup-shake{animation:signup-shake .4s ease}@media (prefers-reduced-motion:reduce){.signup-shell .signup-shake{animation:none}}