:root{--bg:#f4f5f7;--surface:#ffffff;--ink:#16202b;--muted:#5c6773;--rule:#d9dee3;--accent:#1f6f8b;--danger:#a8382a;--radius:10px}@media (prefers-color-scheme:dark){:root{--bg:#11161b;--surface:#181e25;--ink:#e4e8eb;--muted:#93a0ac;--rule:#2a333c;--accent:#7fb3d4;--danger:#e08573}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Vazirmatn,system-ui,Segoe UI,Tahoma,sans-serif;line-height:1.8;padding:clamp(16px,4vw,48px) 16px 80px}main{max-width:720px;margin:0 auto}.card{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:clamp(20px,4vw,36px);display:flex;flex-direction:column;gap:26px}.form-title{font-size:clamp(22px,4vw,30px);margin:0 0 6px}.form-meta{color:var(--muted);font-size:14px;margin:0 0 24px}.page{display:flex;flex-direction:column;gap:22px}.page-title{font-size:18px;margin:0;padding-bottom:8px;border-bottom:1px solid var(--rule)}.field{display:flex;flex-direction:column;gap:8px}.label{font-weight:600;font-size:15px}.req{color:var(--danger)}.help{color:var(--muted);font-size:13px;margin:0}.input{font:inherit;color:inherit;background:var(--bg);border:1px solid var(--rule);border-radius:8px;padding:10px 12px;width:100%}.input:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.choices{flex-direction:column}.choice,.choices{display:flex;gap:8px}.choice{align-items:center;cursor:pointer}.field-error .input{border-color:var(--danger)}.field-error-text{color:var(--danger);font-size:13px;margin:0}.submit{font:inherit;font-weight:600;background:var(--accent);color:#fff;border:0;border-radius:8px;padding:12px 20px;cursor:pointer;align-self:flex-start}.submit:disabled{opacity:.6;cursor:progress}.submit:focus-visible{outline:2px solid var(--ink);outline-offset:2px}.error{color:var(--danger);background:color-mix(in srgb,var(--danger) 10%,transparent);-webkit-border-start:3px solid var(--danger);border-inline-start:3px solid var(--danger);padding:10px 14px;margin:0;border-radius:4px}.done{text-align:center}.done h2{margin:0 0 8px}.muted,.notice{color:var(--muted)}.notice{max-width:520px;margin:15vh auto 0;text-align:center}