.fl-widget{padding:clamp(18px,3vw,30px);margin:26px 0;border:1px solid #c9d3bd;border-radius:24px;background:#edf2e5;color:#203f36;min-width:0;overflow-wrap:anywhere;font-size:calc(16px * var(--learning-scale,1))}.fl-top{display:flex;gap:16px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-bottom:20px}.fl-top h3{margin:0;font-size:1.25em;line-height:1.4}.fl-widget p{font-size:1em;line-height:1.8;max-width:70ch}.fl-widget button,.fl-widget select,.fl-widget input,.fl-widget textarea{font:inherit}.fl-widget button{min-height:44px;padding:10px 17px;border:1px solid #a8b79b;border-radius:22px;background:#fffdf6;color:#203f36;cursor:pointer;line-height:1.4}.fl-widget button:hover{background:#dde8ce}.fl-widget button:disabled{opacity:.45;cursor:default}.fl-widget :focus-visible,.fl-photo-open:focus-visible{outline:3px solid #48683a;outline-offset:4px}.fl-top>button{background:transparent;font-size:.9em}.fl-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:22px}.fl-field{display:flex;flex-direction:column;gap:9px;min-width:0;line-height:1.5}.fl-field>span{font-size:.95em;font-weight:550}.fl-field output{font-weight:400;color:#52684e;margin-left:6px}.fl-field select,.fl-field input[type=text],.fl-field textarea{width:100%;border:1px solid #b9c7ad;border-radius:13px;background:#fffef9;color:#203f36;padding:11px 12px;min-height:46px;min-width:0}.fl-field input[type=range]{width:100%;accent-color:#416636;min-height:32px}.fl-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.fl-canvas{display:block;width:100%;height:auto;border-radius:16px;background:repeating-conic-gradient(#dce4d2 0% 25%,#f6f8ee 0% 50%) 50%/22px 22px}.fl-widget[data-fl-activity=mask] .fl-canvas,.fl-widget[data-fl-activity=clone] .fl-canvas{touch-action:none;cursor:crosshair}.fl-image-legend{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:.8em;line-height:1.6;margin-top:9px;color:#52674c}.fl-histogram{display:block;width:100%;max-height:110px;background:#f9faf3;border-radius:12px;margin-top:18px}.fl-status{font-weight:550;margin-top:18px}.fl-status:empty{display:none}.fl-widget .fl-note{font-size:.85em;color:#5d7154;line-height:1.7;margin-top:18px}.fl-real-screen{width:100%;height:auto;display:block;border-radius:12px}.fl-workspace-help,.fl-download-guide{padding:18px;border-radius:16px;background:#fffef9;margin-top:20px}.fl-download-guide h4{font-size:1.05em;overflow-wrap:anywhere;margin:0 0 10px}.fl-warning{border-left:3px solid #967c43;padding-left:14px}.fl-workflow{padding:0;list-style:none;counter-reset:fl-step}.fl-workflow li{padding:14px 0;display:flex;align-items:center;gap:16px;justify-content:space-between;border-bottom:1px solid #cad5be}.fl-workflow li>span{flex:1;line-height:1.6}.fl-workflow li>div{display:flex;gap:7px;flex-wrap:wrap}.fl-layer{border:1px solid #c4d0b7;border-radius:15px;padding:16px;grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:14px}.fl-layer>strong,.fl-layer>.fl-actions{grid-column:1/-1}.fl-check{display:flex;align-items:start;gap:12px;line-height:1.7;margin-top:20px}.fl-check input{margin-top:7px;min-width:20px;min-height:20px;accent-color:#416636}.fl-route{margin:26px 0;padding:20px 24px;border-radius:18px;background:#edf3e4;font-size:calc(17px * var(--learning-scale,1))}.fl-route p{font-size:1em!important;line-height:1.8}.fl-route h3{font-size:1.1em}.fl-preferences{margin-bottom:22px}.fl-preferences .ic-preference-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.fl-photo-open{display:block;padding:0;background:none;border:0;width:100%;cursor:zoom-in}.fl-photo-open img{display:block;width:100%;height:auto}.fl-photo-official img{aspect-ratio:auto!important;object-fit:contain!important;height:auto!important}.fl-photo figcaption{font-size:12px;line-height:1.6;color:#64755c}.fl-photo-dialog{padding:0;border:1px solid #c5d1b9;border-radius:20px;background:#fffef9;color:#203f36;max-width:95vw;max-height:94dvh;overflow:auto}.fl-photo-dialog::backdrop{background:#10261de0}.fl-photo-dialog>div{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:10px 18px}.fl-photo-dialog h2{font-size:18px;margin:0}.fl-photo-dialog button{border:1px solid #b8c7ac;background:#eff3e7;border-radius:50%;width:46px;height:46px;cursor:pointer;color:#203f36;font-size:28px}.fl-photo-dialog img{display:block;max-width:100%;max-height:calc(94dvh - 68px);height:auto;object-fit:contain}.fl-photo-open:focus-visible{outline-offset:2px}.bc-course-hero .fl-photo{margin:0}.fl-widget a{overflow-wrap:anywhere;text-decoration:underline;text-underline-offset:4px}
@media(max-width:760px){.fl-controls,.fl-preferences .ic-preference-fields{grid-template-columns:1fr}.fl-widget{padding:17px}.fl-field select,.fl-field input,.fl-field textarea{font-size:max(16px,1em)}.fl-widget button{font-size:.95em}.fl-workflow li{align-items:start;flex-direction:column;gap:10px}.fl-route{padding:18px}.fl-image-legend{font-size:.85em}.fl-layer{grid-template-columns:1fr}.fl-canvas{border-radius:12px}}
@media(prefers-reduced-motion:reduce){.fl-widget *{scroll-behavior:auto!important}}

/* Keep prose comfortable inside the wide course window. */
.bc-reader-layout .bc-reader .lesson-text,.bc-reader-layout .bc-reader .ic-practice-intro{max-width:min(64ch,42rem)}
.fl-video-source{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.fl-canvas{width:100%;height:auto;aspect-ratio:16/9;display:block;background:#eaf0e1}.fl-widget,.fl-widget *{min-width:0}.fl-widget-heading{display:flex;align-items:start;justify-content:space-between;gap:15px}.fl-widget-heading h3{margin:0}.fl-controls{margin-top:20px;align-items:start}.fl-controls>p,.fl-controls>.fl-transport,.fl-controls>.fl-timebar,.fl-controls>.fl-clip-list,.fl-controls>[data-fl-trim],.fl-controls>.fl-download-route,.fl-controls>.fl-graph{grid-column:1/-1}.fl-transport{display:flex;gap:9px;flex-wrap:wrap}.fl-graph{display:block;width:100%;max-width:600px;height:auto;margin-top:15px}.fl-timebar{display:flex;width:100%;height:42px;gap:3px;background:#d4dfc7;border-radius:8px;overflow:hidden}.fl-timebar span{display:flex;align-items:center;justify-content:center;background:#416f3c;color:#fff;overflow:hidden}.fl-timebar span:nth-child(2n){background:#78915d}.fl-clip-list{margin:10px 0;padding:0;list-style:none;display:grid;gap:10px}.fl-clip-list li{display:flex;align-items:center;justify-content:space-between;gap:15px;border:1px solid #c8d4b9;border-radius:14px;padding:13px}.fl-clip-list small{display:block;font-size:.8em;color:#627456}.fl-clip-list li>div{display:flex;gap:6px;flex-wrap:wrap}.fl-clip-list button{min-width:42px;padding:8px 10px;font-size:.85em}.fl-review-item{display:flex;gap:12px;align-items:start;padding:13px;border:1px solid #c8d4b9;border-radius:13px}.fl-review-item input{flex:none;width:20px;height:20px;margin-top:3px;accent-color:#416f3c}.fl-download-route{padding:18px;border-radius:16px;background:#f8faf1}.fl-download-route code{overflow-wrap:anywhere;font-size:.85em}.fl-download-route a{text-decoration:underline;text-underline-offset:4px}.fl-field input:not([type=range]),.fl-field textarea,.fl-field select{width:100%;max-width:100%}.fl-metric{font-variant-numeric:tabular-nums}.fl-widget .fl-note{margin-top:20px}.fl-photo-official img{height:auto;aspect-ratio:auto;object-fit:contain;background:#24252c}.fl-task{font-size:1em}.fl-feedback:empty{display:none}@media(max-width:760px){.fl-clip-list li{align-items:stretch;flex-direction:column}.fl-controls{grid-template-columns:1fr}.fl-widget-heading{gap:8px}.fl-widget-heading h3{font-size:1.15em}.fl-widget button{min-height:44px}.fl-field input,.fl-field textarea,.fl-field select{font-size:max(16px,1em)}}

.fl-widget-heading>button{flex:none;min-width:86px;white-space:nowrap}.fl-photo:not(.fl-photo-official) img{aspect-ratio:16/9;height:auto}

.fl-timebar-trim{position:relative;display:block}.fl-timebar-trim>span{position:absolute;top:0;height:100%;border-right:2px solid #eaf0e1;box-sizing:border-box}.fl-trim-overlap{position:absolute;top:0;height:100%;display:flex;align-items:center;justify-content:center;background:repeating-linear-gradient(135deg,#b3834ee6,#b3834ee6 5px,#e5c89de6 5px,#e5c89de6 10px);color:#172e25;font-style:normal;font-size:.7em;overflow:hidden}

.fl-clip-list small{color:#5d7154}

.fl-widget{border:1px solid #c6d2ba;border-radius:24px;padding:clamp(16px,3vw,28px);background:#eef3e6;min-width:0;max-width:100%;color:#203f36}.fl-widget *{box-sizing:border-box}.fl-widget-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.fl-widget-heading h3{margin:0;font-size:1.2em}.fl-widget button{border:1px solid #a5b895;border-radius:999px;background:#f7f8ef;color:#203f36;padding:10px 16px;font:inherit;cursor:pointer;min-height:44px}.fl-widget button:hover,.fl-widget button[aria-pressed=true]{background:#3d6533;color:#fff}.fl-widget button:disabled{opacity:.45;cursor:default}.fl-widget :focus-visible{outline:3px solid #527b42;outline-offset:3px}.fl-task,.fl-note{font-size:.88em;line-height:1.6}.fl-note{border-top:1px solid #c6d2ba;padding-top:14px;color:#49604b}.fl-tools{display:grid;gap:16px;margin-top:20px}.fl-field{display:grid;gap:7px;min-width:0}.fl-field input,.fl-field textarea,.fl-field select{width:100%;min-width:0;max-width:100%;font:inherit;color:#203f36;background:#fffef8;border:1px solid #b5c3a6;border-radius:12px;padding:11px 12px}.fl-field input[type=range]{padding:10px 0;accent-color:#3d6533}.fl-field textarea{resize:vertical;line-height:1.6}.fl-check{display:flex;gap:12px;align-items:flex-start;line-height:1.5}.fl-check input{width:20px;height:20px;flex:none;accent-color:#3d6533;margin-top:3px}.fl-result{margin:18px 0;overflow-wrap:anywhere;background:#fffef8;padding:18px;border-radius:18px}.fl-result h4{font-size:1.08em;margin:0 0 12px}.fl-result p:last-child{margin-bottom:0}.fl-result progress{width:100%;height:14px;accent-color:#3d6533}.fl-tabs{display:flex;flex-wrap:wrap;gap:8px}.fl-brand{font-size:.8em;letter-spacing:.04em;color:#4b6346}.fl-kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.fl-kpis span{display:grid;gap:4px;font-size:.85em}.fl-kpis b{font-size:1.35em;font-weight:600}.fl-banner{background:#dce9cb;min-height:120px;padding:24px;text-align:center;display:grid;place-content:center;border-radius:14px}.fl-banner span{font-size:1.4em}.fl-banner small{font-size:.7em}.fl-channel.fl-phone{max-width:280px;margin:auto}.fl-phone .fl-banner{padding:20px 12px;min-height:90px}.fl-variant{border:1px solid #bcc9b0;border-radius:16px;display:grid;gap:12px;padding:16px;min-width:0}.fl-variant legend{padding:0 8px}.fl-canvas{display:block;width:100%;height:auto;border-radius:12px}.fl-video-card{max-width:560px}.fl-video-card img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:12px}.fl-table-wrap{overflow-x:auto;max-width:100%}.fl-widget table{border-collapse:collapse;width:100%;font-size:.85em;line-height:1.5}.fl-widget th,.fl-widget td{text-align:left;padding:10px;border-bottom:1px solid #d4deca;vertical-align:top;overflow-wrap:anywhere}.fl-caption-preview,.fl-editor-preview{position:relative}.fl-caption-preview img,.fl-editor-preview img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block;border-radius:12px}.fl-caption-preview span{position:absolute;bottom:10%;left:5%;right:5%;background:#10291ee8;color:#fff;text-align:center;padding:10px;border-radius:5px;font-size:clamp(12px,2vw,20px)}.fl-order{padding:0;list-style:none;display:grid;gap:14px}.fl-order li{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fffef8;padding:14px;border-radius:14px}.fl-order li>div{display:flex;gap:6px;flex-wrap:wrap}.fl-order button{font-size:.85em;padding:8px 12px}.fl-comments{display:grid;gap:12px}.fl-comments article{padding:16px;border:1px solid #c6d2ba;border-radius:14px;background:#fffef8}.fl-comments article>div{display:flex;gap:8px;flex-wrap:wrap}.fl-comments button{font-size:.8em}.fl-graph{width:100%;height:auto}.fl-graph text{font-size:14px;fill:#203f36}.fl-blur{position:absolute;top:32%;width:20%;height:36%;backdrop-filter:blur(12px);background:#eaf0e155;border:1px dashed #fff}.fl-feedback{color:#254a26;min-height:1.4em}.fl-photo img{width:100%;height:auto;max-height:520px;object-fit:contain}.fl-widget input[type=number]{min-height:44px}@media(max-width:600px){.fl-kpis{grid-template-columns:1fr}.fl-order li{display:grid}.fl-widget-heading{align-items:center}.fl-widget-heading h3{font-size:1.05em}.fl-result{padding:14px}.fl-variant{padding:12px}.fl-widget th,.fl-widget td{padding:7px}.fl-widget{border-radius:20px}.fl-caption-preview span{font-size:12px}}@media(prefers-reduced-motion:reduce){.fl-widget *{scroll-behavior:auto}}

.fl-thumbnail-preview{position:relative}.fl-duration{position:absolute;bottom:8px;right:10px;padding:2px 7px;border-radius:5px;background:#17291dee;color:white;font-size:12px;line-height:1.5}

.bc-reader .fl-photo{max-width:960px;margin-inline:auto}.bc-reader .fl-photo img,.bc-course-hero .fl-photo img{height:auto!important;max-height:none;object-fit:contain!important;aspect-ratio:3/2}

/* Focused exercises: keep touch controls and previews usable on small screens. */
.fl-example-timeline{position:relative;min-height:36px;background:#d9e5cf;border-radius:8px;overflow:hidden}.fl-example-timeline>span{position:absolute;top:0;bottom:0;background:#426b37;min-width:3px}.fl-end-preview{aspect-ratio:16/9;position:relative;background:#d9e5cf;border:1px solid #b8c8ab;border-radius:12px}.fl-end-preview>span{position:absolute;right:6%;top:28%;width:40%;padding:15px 8px;border:2px dashed #5f7f4d;text-align:center;border-radius:12px;font-size:.9em}.fl-end-preview>span.fl-place-left{right:auto;left:6%}.fl-poll-option{display:grid;gap:7px;margin-block:15px}.fl-poll-option progress{width:100%;height:16px}.fl-short-frame{position:relative;max-width:260px;max-height:480px;margin:auto;overflow:hidden;border-radius:18px;background:#dce6d1}.fl-short-frame img{width:100%;height:100%;position:absolute;object-fit:cover}.fl-short-frame>span{position:absolute;left:8%;right:8%;bottom:20%;padding:10px;background:#173b2fe8;border-radius:8px;color:#fff;font-size:.85em;text-align:center}.fl-comment-more{width:100%;margin-top:8px}.fl-comment-more summary{cursor:pointer;font-size:.85em;padding:8px 0}.fl-comment-more button{margin:6px 6px 0 0}.fl-widget blockquote{margin:12px 0;padding:14px;border-left:3px solid #809f68;background:#f5f7ef;overflow-wrap:anywhere}.fl-widget dd{margin:4px 0 16px;line-height:1.7}

.fl-official-screen{margin:2rem 0;padding:clamp(1rem,3vw,1.6rem);border:1px solid var(--line,#ccd4bd);border-radius:1.25rem;background:#f2f5ea}.fl-official-screen p{max-width:66ch}.fl-official-screen figure{margin:1rem 0 0}.fl-official-screen img{display:block;max-width:100%;height:auto;object-fit:contain;margin:auto;border-radius:.5rem}.fl-official-screen figcaption{font-size:.85em;line-height:1.6;margin-top:.8rem;overflow-wrap:anywhere}.fl-official-screen summary{cursor:pointer;padding:.8rem;min-height:44px}.fl-official-screen details[open] summary{margin-bottom:1rem}.fl-official-screen .fl-photo-open{max-width:100%}

.fl-tools{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}.fl-tools label{display:flex;flex-direction:column;justify-content:flex-start}.fl-tools label>span{display:block}.fl-tools button{align-self:end}@media(max-width:600px){.fl-tools{grid-template-columns:1fr}}
.fl-widget{background:#f5f7ef;border:1px solid #cdd8bf;border-radius:22px;padding:clamp(16px,3vw,28px);margin:24px 0;color:#183e32}.fl-widget-heading{display:flex;gap:12px;align-items:start;justify-content:space-between}.fl-widget-heading h3{margin:0}.fl-tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:14px;margin:20px 0}.fl-tools label{display:grid;gap:7px;min-width:0}.fl-tools input,.fl-tools select,.fl-tools textarea{box-sizing:border-box;width:100%;max-width:100%;min-height:44px;padding:10px;border:1px solid #a8b99c;border-radius:10px;background:#fffef8;color:inherit;font:inherit}.fl-tools textarea{resize:vertical}.fl-tools input[type=checkbox]{width:22px;min-height:22px}.fl-tools button,.fl-widget-heading button{min-height:44px;padding:9px 16px;border:1px solid #b8c8aa;border-radius:24px;color:#234d3a;background:#fffef8;font:inherit;cursor:pointer}.fl-result{padding:18px;border-radius:16px;background:#fffdf6;overflow-wrap:anywhere}.fl-result canvas{max-width:100%;height:auto;display:block;border-radius:12px}.fl-result video{width:100%;max-height:420px;border-radius:12px}.fl-result pre{white-space:pre-wrap;overflow-wrap:anywhere;font-family:inherit}.fl-note{font-size:.85rem;line-height:1.6;color:#59715e}.fl-feedback{min-height:1.4em}.fl-photo figcaption{display:grid;gap:6px}.fl-photo figcaption small{font-size:.78rem}.fl-diagram img,.fl-clip video{display:block;width:100%;height:auto;border-radius:16px}.fl-diagram button{display:block;width:100%;border:0;padding:0;background:transparent;cursor:zoom-in}.fl-photo-dialog{box-sizing:border-box;width:min(1100px,96vw);max-height:94dvh;overflow:auto;background:#fffdf6;border:0;border-radius:22px;padding:20px;color:#183e32}.fl-photo-dialog::backdrop{background:#102f26cc}.fl-photo-dialog>div{display:flex;justify-content:space-between;gap:16px;align-items:center;position:sticky;top:0;background:#fffdf6;z-index:1}.fl-photo-dialog img{display:block;max-width:100%;max-height:76dvh;width:auto;height:auto;margin:auto;object-fit:contain}.fl-photo-dialog button{font:inherit;font-size:28px;border:0;background:transparent;min-width:44px;min-height:44px;cursor:pointer}.fl-photo-dialog h2{font-size:1.2rem}.fl-shot-list{display:grid;gap:10px}.fl-shot{display:grid;grid-template-columns:80px 1fr auto;gap:10px;align-items:center;border:1px solid #d9e1ce;border-radius:12px;padding:10px}.fl-shot img{width:80px;height:54px;object-fit:cover;border-radius:8px}.fl-shot button{min-width:44px;min-height:44px}.fl-table{overflow:auto}.fl-table table{border-collapse:collapse;width:100%}.fl-table td,.fl-table th{text-align:left;padding:9px;border-bottom:1px solid #dce4d2}.fl-caption-preview{position:relative;margin:auto;overflow:hidden;border-radius:16px;max-width:100%;background:#183e32}.fl-caption-preview img{width:100%;height:100%;object-fit:cover}.fl-caption-preview span{position:absolute;left:8%;right:8%;color:#fff;background:#122a25dc;padding:10px;text-align:center;font-size:clamp(14px,3vw,22px)}.fl-caption-preview i{position:absolute;right:0;width:14%;top:28%;bottom:12%;background:#b1474640;border:1px dashed #a23c3c}.fl-caption-preview b{position:absolute;left:0;right:0;bottom:0;height:17%;background:#b1474640;border:1px dashed #a23c3c}.fl-photo-open{width:100%;padding:0;border:0;background:transparent;cursor:zoom-in}.fl-clip figcaption{font-size:.85rem;color:#59715e}.fl-route{border-left:3px solid #9caf85;padding:12px 18px}.fl-timeline{display:flex;gap:3px;margin:12px 0}.fl-timeline span{display:block;background:#b8d4b1;border-radius:5px;min-width:2px;padding:9px 3px;text-align:center;overflow:hidden}.fl-widget :focus-visible,.fl-photo-dialog :focus-visible{outline:3px solid #486c36;outline-offset:3px}@media(max-width:480px){.fl-widget{padding:14px}.fl-shot{grid-template-columns:60px 1fr}.fl-shot img{width:60px}.fl-shot>div:last-child{grid-column:1/-1}.fl-result{padding:12px}.fl-tools{grid-template-columns:1fr}.fl-course .bc-course-hero h2{overflow-wrap:anywhere}.fl-photo-dialog{padding:12px}}

.fl-audio-example{margin:24px 0;padding:20px;background:#f5f7ef;border:1px solid #d1ddc7;border-radius:20px}.fl-audio-example audio{width:100%;display:block}.fl-audio-example p{font-size:.9em}.fl-music-parts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.fl-music-parts>div{padding:14px;border:1px solid #d3ddc8;border-radius:12px;background:#eef3e5}.fl-music-parts strong,.fl-music-parts span,.fl-music-parts small{display:block;overflow-wrap:anywhere}@media(max-width:480px){.fl-music-parts{grid-template-columns:1fr}}