.fsx fieldset{border:0;min-width:0}.fsx .fsx-intro{color:var(--muted);margin-bottom:6px}.fsx .fsx-lesson{font-size:15px;margin-bottom:20px}.fsx .fsx-section{margin-bottom:56px;scroll-margin-top:90px}.fsx .fsx-card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:8px 28px 24px}.fsx .fsx-q{padding:20px 0;border-bottom:1px solid var(--line)}.fsx .fsx-q:last-of-type{border-bottom:0}.fsx .fsx-stem{display:flex;gap:12px;align-items:baseline;font-size:17px;line-height:1.7}.fsx .fsx-num{flex:none;display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--soft);font-size:14px;font-weight:700;color:var(--teal)}.fsx .fsx-blank{display:inline-block;min-width:70px;border-bottom:2px solid var(--amber)}.fsx .fsx-opts{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 0 40px}.fsx .fsx-opt{position:relative;display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 16px;border:1px solid var(--line);border-radius:8px;background:var(--paper);cursor:pointer;font-size:16px}.fsx .fsx-opt input{accent-color:var(--teal);width:18px;height:18px;margin:0}.fsx .fsx-opt:has(input:checked){border-color:var(--teal);background:#eef3f1}.fsx .fsx-opt.is-right,.fsx .fsx-opt.is-right:has(input:checked){border-color:var(--ok);background:var(--ok-bg)}.fsx .fsx-opt.is-wrong,.fsx .fsx-opt.is-wrong:has(input:checked){border-color:var(--no);background:var(--no-bg)}.fsx .fsx-input{font:inherit;font-size:16px;width:12em;max-width:100%;min-height:40px;padding:4px 10px;border:1px solid #bfb8aa;border-bottom:2px solid var(--amber);border-radius:6px;background:#fffdf8;color:var(--ink)}.fsx .fsx-input:focus{outline:3px solid rgba(200,135,58,.35);outline-offset:1px;border-color:var(--teal)}.fsx .fsx-input.is-right{border-color:var(--ok);background:var(--ok-bg)}.fsx .fsx-input.is-wrong{border-color:var(--no);background:var(--no-bg)}.fsx .fsx-verbhint{font-size:15px;color:var(--muted);font-style:italic}.fsx .fsx-select{font:inherit;font-size:16px;min-height:44px;padding:6px 10px;border:1px solid #bfb8aa;border-radius:6px;background:#fffdf8;color:var(--ink);max-width:100%}.fsx .fsx-select.is-right{border-color:var(--ok);background:var(--ok-bg)}.fsx .fsx-select.is-wrong{border-color:var(--no);background:var(--no-bg)}.fsx .fsx-endings{list-style:none;display:grid;gap:8px;margin:18px 0 6px;padding:16px 18px;background:var(--soft);border-radius:8px}.fsx .fsx-endings li{display:flex;gap:10px;font-size:16px}.fsx .fsx-letter{flex:none;font-weight:700;color:var(--teal);width:22px}.fsx .fsx-mrow{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:16px;align-items:center}.fsx .fsx-fb{margin:12px 0 0 40px;padding:10px 14px;border-radius:8px;font-size:15px;line-height:1.5}.fsx .fsx-fb[hidden]{display:none}.fsx .fsx-fb.is-right{background:var(--ok-bg)}.fsx .fsx-fb.is-wrong{background:var(--no-bg)}.fsx .fsx-fb strong{color:var(--ok)}.fsx .fsx-fb.is-wrong strong{color:var(--no)}.fsx .fsx-controls{display:flex;flex-wrap:wrap;align-items:center;gap:12px 16px;padding-top:18px;border-top:1px solid var(--line)}.fsx .fsx-btn{display:inline-flex;align-items:center;min-height:44px;padding:10px 20px;border-radius:6px;font:inherit;font-size:15px;font-weight:600;border:0;cursor:pointer;text-decoration:none}.fsx .fsx-btn-teal{background:var(--teal);color:var(--paper)}.fsx .fsx-btn-ghost{background:0 0;color:var(--teal);border:1px solid var(--teal)}.fsx .fsx-score{font-weight:600;color:var(--teal)}.fsx .fsx-score:empty{display:none}.fsx .fsx-total{background:var(--teal);color:var(--paper);border-radius:10px;padding:22px 26px;margin-bottom:48px}.fsx .fsx-total p{font-size:18px}.fsx .fsx-total strong{color:#f4d7b0}.fsx .fsx-more{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:48px}.fsx .fsx-more a{display:block;padding:20px 22px;border:1px solid var(--line);border-radius:10px;background:var(--card);text-decoration:none}.fsx .fsx-more a:hover{border-color:var(--teal)}.fsx .fsx-more small{display:block;font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--amber-text);margin-bottom:4px}.fsx .fsx-more span{display:block;font-weight:600;font-size:17px;color:var(--teal)}.fsx .fsx-more em{display:block;font-style:normal;font-size:14px;color:var(--muted);margin-top:4px}@media (max-width:640px){.fsx .fsx-card{padding:4px 18px 20px}.fsx .fsx-opts,.fsx .fsx-fb{margin-left:0}.fsx .fsx-opt{flex:1 1 100%}.fsx .fsx-mrow{grid-template-columns:1fr;gap:8px}.fsx .fsx-select{width:100%}.fsx .fsx-input{width:100%;margin-top:6px}.fsx .fsx-intro{font-size:16px}.fsx .fsx-stem{font-size:16px}.fsx .fsx-endings li{font-size:15px}.fsx .fsx-fb{font-size:14px}.fsx .fsx-total p{font-size:16px}.fsx .fsx-input,.fsx .fsx-select,.fsx .fsx-opt{font-size:16px}}