.plain-shell{height:100dvh;overflow-y:auto;background:var(--ink);color:var(--text);font-family:var(--ui);display:flex;flex-direction:column;align-items:center}.plain-shell-header{width:100%;height:var(--topbar-h);display:flex;align-items:center;padding:0 16px;border-bottom:1px solid var(--line)}.plain-shell-body{width:100%;max-width:480px;padding:48px 20px}.plain-shell-title{font-size:19px;font-weight:700;letter-spacing:var(--ls-title);margin-bottom:20px}.plain-shell-back{display:inline-block;font-size:var(--fs-ui-s);color:var(--text-dim);margin-bottom:12px}.plain-shell-back:hover{color:var(--ref)}.plain-form{display:flex;flex-direction:column;gap:6px}.plain-form input{font:inherit;font-size:var(--fs-ui);background:var(--surface);border:1px solid var(--line);border-radius:var(--r);color:var(--text);padding:8px 10px;margin-bottom:12px}.plain-form input:focus-visible{outline:none;border-color:var(--ref)}.plain-form-error{color:var(--claim);font-size:var(--fs-ui-s);margin-bottom:10px}.plain-form-switch{margin-top:16px;font-size:var(--fs-ui-s);color:var(--text-dim)}.plain-form-switch a{color:var(--ref)}@media (max-width:768px){.plain-form input{font-size:16px}}