.bffp-section{background:radial-gradient(circle at 96% 0,#7057d91c,#0000 34%),#f8fbffe0;border:1px solid #0071e329;border-radius:22px;margin:28px 0;padding:20px;box-shadow:0 12px 34px #0f172a0b}.bffp-heading{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.bffp-kicker{color:#0071e3;align-items:center;gap:6px;font-size:11px;font-weight:850;display:inline-flex}.bffp-heading h2{color:#111827;letter-spacing:-.03em;margin:6px 0 5px;font-size:clamp(21px,3vw,28px)}.bffp-heading p{color:#6b7280;margin:0;font-size:12px;line-height:1.6}.bffp-progress{color:#0071e3;background:#0071e31a;border-radius:999px;flex:none;padding:7px 10px;font-size:11px;font-weight:850}.bffp-card{background:#ffffffc7;border:1px solid #94a3b838;border-radius:18px;margin-top:16px;padding:16px}.bffp-instruction{color:#4b5563;align-items:center;gap:9px;font-size:12px;display:flex}.bffp-instruction span{color:#0071e3;letter-spacing:.04em;font-size:10px;font-weight:850}.bffp-instruction.second{margin-top:20px}.bffp-audio-target{background:#eef7ffa3;border:1px dashed #0071e347;border-radius:15px;align-items:center;gap:10px;margin-top:10px;padding:13px;display:flex}.bffp-audio-icon{color:#fff;background:#0071e3;border-radius:13px;flex:none;place-items:center;width:38px;height:38px;display:grid}.bffp-audio-target>div:nth-child(2){flex:1;gap:3px;min-width:0;display:grid}.bffp-audio-target strong{color:#1f2937;font-size:12px}.bffp-audio-target small{color:#64748b;font-size:11px}.bffp-audio-target .lesson-pronunciation-button{background:#fff;border-radius:12px;flex:none;width:36px;height:36px}.bffp-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:11px;display:grid}.bffp-options.letters{grid-template-columns:repeat(4,minmax(0,1fr))}.bffp-options button{color:#1f2937;text-align:left;cursor:pointer;background:#fff;border:1px solid #94a3b847;border-radius:13px;justify-content:space-between;align-items:center;gap:8px;min-height:48px;padding:9px 12px;font-size:15px;font-weight:800;transition:border-color .16s,background .16s;display:flex}.bffp-options button:hover:not(:disabled){background:#0071e30a;border-color:#0071e373}.bffp-options button:disabled{cursor:default}.bffp-options button.correct{color:#15803d;background:#f0fdf4e6;border-color:#16a34a6b}.bffp-options button.wrong{color:#b91c1c;background:#fef2f2eb;border-color:#ef44446b}.bffp-options button>span{gap:2px;min-width:0;display:grid}.bffp-options button em{color:#111827;font-size:17px;font-style:normal}.bffp-options button small{color:#6b7280;font-size:11px;font-weight:500}.bffp-feedback{border-radius:13px;flex-wrap:wrap;align-items:center;gap:7px;margin-top:13px;padding:11px 12px;font-size:12px;line-height:1.5;display:flex}.bffp-feedback.correct{color:#15803d;background:#f0fdf4eb}.bffp-feedback.wrong{color:#b91c1c;background:#fef2f2eb}.bffp-feedback small{color:#6b7280;flex:1 0 100%;font-size:11px}.bffp-feedback button,.bffp-finished button{color:#0071e3;cursor:pointer;background:#0071e31a;border:0;border-radius:999px;align-items:center;gap:5px;margin-left:auto;padding:6px 10px;font-size:11px;font-weight:800;display:inline-flex}.bffp-finished{color:#15803d;text-align:center;background:#f0fdf4d1;border-radius:17px;flex-direction:column;align-items:center;margin-top:16px;padding:26px 16px 20px;display:flex}.bffp-finished h3{color:#166534;margin:9px 0 5px;font-size:18px}.bffp-finished p{color:#4b5563;max-width:480px;margin:0;font-size:12px;line-height:1.6}.bffp-record-link{color:#0071e3;align-items:center;gap:5px;margin-top:12px;font-size:12px;font-weight:800;text-decoration:none;display:inline-flex}.bffp-record-link:hover{color:#005bb5}.bffp-finished button{margin:14px 0 0}@media (max-width:560px){.bffp-section{border-radius:19px;padding:16px 13px}.bffp-options.letters{grid-template-columns:repeat(2,minmax(0,1fr))}.bffp-heading{display:block}.bffp-progress{margin-top:9px;display:inline-block}.bffp-audio-target{align-items:flex-start}}