:root{--t-total:22px;--t-title:20px;--t-body:14px;--t-figure:14px;--t-meta:13px;--t-chrome:12px}.fd-login-brand{display:flex;align-items:center;justify-content:center;gap:10px}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%}body{background:var(--ground);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:var(--t-body);line-height:1.5}.centred{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:48px 24px}.card{width:420px;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:32px}.card h1{margin:0 0 4px;font-size:var(--t-total)}.subtitle{margin:0 0 24px;color:var(--ink-2);font-size:var(--t-meta)}.centred label{display:block;margin-bottom:16px;font-size:var(--t-meta);font-weight:600}.centred input{display:block;width:100%;margin-top:6px;padding:9px 10px;border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--ink);font:inherit;font-weight:400}.centred button:focus-visible,.centred input:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.centred button{padding:9px 16px;border:1px solid transparent;border-radius:4px;background:var(--accent);color:var(--accent-ink);font:inherit;font-weight:600;cursor:pointer}.centred button:disabled{opacity:.6;cursor:default}.centred .fd-second-methods{margin:0 0 16px;padding:0;border:0}.centred .fd-second-methods label{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-weight:500;font-size:var(--t-body)}.centred .fd-second-methods input{display:inline-block;width:auto;margin:0}.centred .fd-second-actions{display:flex;gap:8px}.centred .fd-second-send{margin-bottom:16px}.centred button.secondary{background:var(--surface);color:var(--ink);border-color:var(--line)}.centred button.fd-link{margin-top:16px;padding:0;border:0;border-bottom:1px solid var(--line-strong);border-radius:0;background:none;color:var(--ink);font-weight:500}.centred button.fd-link:hover{border-bottom-color:currentColor}.problem{margin-bottom:20px;padding:10px 12px;border:1px solid var(--crit);border-radius:4px;background:var(--crit-wash);color:var(--crit);font-size:var(--t-meta)}.problem code{font-weight:700;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.problem-code{font-weight:500;font-size:var(--t-meta);opacity:.72}