/* TJK-Chess 14.7.3 — founder video lessons and interactive checkpoints. */ .course-media-editor{margin-bottom:15px;padding:18px} .course-media-editor[hidden]{display:none!important}.course-media-editor h2{margin:0 0 5px}.course-media-editor>p{margin:0 0 15px;color:#64748b;line-height:1.5} .course-media-grid{display:grid;grid-template-columns:minmax(280px,1.1fr) minmax(320px,1fr);gap:18px;align-items:start} .course-media-panel{border:1px solid #dbe3ee;border-radius:11px;background:#f8fafc;padding:14px}.course-media-panel h3{margin:0 0 10px;font-size:1rem} .course-media-field{display:grid;gap:5px;margin-bottom:11px;font-weight:750}.course-media-field input,.course-media-field textarea,.course-media-field select{width:100%;min-height:40px;padding:8px 10px;border:1px solid #c7d2e1;border-radius:8px;background:#fff;color:#172842}.course-media-field textarea{min-height:72px;resize:vertical} .course-media-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.course-media-actions button{min-height:39px;padding:7px 12px;border:1px solid #c5d0df;border-radius:8px;background:#fff;color:#172842;font-weight:780;cursor:pointer}.course-media-actions .is-primary{border-color:#0b5fe7;background:#0b5fe7;color:#fff}.course-media-actions button:disabled{opacity:.55;cursor:not-allowed} .course-media-upload-status{margin-top:9px;color:#64748b;font-size:.82rem}.course-media-upload-status.is-error{color:#b42318}.course-media-preview{width:100%;max-height:330px;margin-top:12px;border-radius:10px;background:#0b1020}.course-media-empty{padding:28px;border:1px dashed #bdc9d8;border-radius:10px;text-align:center;color:#64748b;background:#fff} .course-checkpoint-list{display:grid;gap:10px;max-height:550px;overflow:auto}.course-checkpoint{border:1px solid #d6dfeb;border-radius:10px;background:#fff;overflow:hidden}.course-checkpoint>header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 11px;background:#eef4ff}.course-checkpoint>header strong{font-size:.9rem}.course-checkpoint>header button{border:0;background:transparent;color:#b42318;font-weight:900;cursor:pointer}.course-checkpoint-fields{display:grid;grid-template-columns:110px 1fr;gap:9px;padding:11px}.course-checkpoint-fields .is-wide{grid-column:1/-1}.course-checkpoint-fields label{display:grid;gap:4px;color:#536176;font-size:.75rem;font-weight:780}.course-checkpoint-fields input,.course-checkpoint-fields textarea,.course-checkpoint-fields select{width:100%;padding:7px 8px;border:1px solid #cbd5e1;border-radius:7px;background:#fff}.course-checkpoint-fields textarea{min-height:58px;resize:vertical}.course-checkpoint-help{grid-column:1/-1;margin:0;color:#718096;font-size:.74rem;line-height:1.4} .course-preview-tabs{display:flex;gap:7px;margin:0 0 12px}.course-preview-tabs button{min-height:41px;padding:8px 14px;border:1px solid #c7d2e1;border-radius:8px;background:#fff;color:#22334e;font-weight:800;cursor:pointer}.course-preview-tabs button.is-active{border-color:#0b5fe7;background:#0b5fe7;color:#fff}.course-preview-panel[hidden]{display:none!important} .tjk-video-course{border:1px solid #d6dfeb;border-radius:14px;background:#111827;color:#fff;overflow:hidden;box-shadow:0 10px 28px rgba(15,23,42,.15)}.tjk-video-stage{position:relative;display:grid;place-items:center;min-height:420px;background:#05070c}.tjk-video-stage video{display:block;width:100%;max-height:min(72vh,760px);background:#000}.tjk-video-header{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 16px;background:#111827}.tjk-video-header h2{margin:0;font-size:1.12rem}.tjk-video-header span{color:#aab6c8;font-size:.8rem}.tjk-video-checkpoint-overlay{position:absolute;inset:0;z-index:5;display:grid;grid-template-columns:minmax(320px,650px) minmax(260px,390px);gap:16px;align-items:center;justify-content:center;padding:18px;background:rgba(5,8,15,.96)}.tjk-video-checkpoint-overlay[hidden]{display:none!important}.tjk-video-board-wrap{position:relative;width:min(100%,650px);aspect-ratio:1;border:2px solid #263246;background:#789b59}.tjk-video-board{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);width:100%;height:100%;touch-action:none;user-select:none}.tjk-video-square{position:relative;display:grid;place-items:center;min-width:0;min-height:0}.tjk-video-square.light{background:#eeeecf}.tjk-video-square.dark{background:#789b59}.tjk-video-square.is-selected{box-shadow:inset 0 0 0 5px #f2c21a}.tjk-video-square.is-last{box-shadow:inset 0 0 0 999px rgba(238,224,72,.31)}.tjk-video-square.is-legal:after{content:"";position:absolute;width:23%;aspect-ratio:1;border-radius:50%;background:rgba(23,45,26,.34);z-index:2}.tjk-video-square.is-capture:after{width:76%;border:5px solid rgba(23,45,26,.31);background:transparent}.tjk-video-piece{position:relative;z-index:3;display:grid;place-items:center;width:100%;height:100%;cursor:grab}.tjk-video-checkpoint-card{padding:20px;border:1px solid #334155;border-radius:13px;background:#172033}.tjk-video-checkpoint-card h3{margin:0 0 8px;font-size:1.35rem}.tjk-video-checkpoint-card p{color:#c3cddd;line-height:1.55}.tjk-video-status{min-height:48px;margin:14px 0;padding:11px 12px;border-radius:9px;background:#0f172a;color:#d7e0ed;font-weight:750}.tjk-video-status.is-good{background:#123d27;color:#b7f4cd}.tjk-video-status.is-bad{background:#4b1d1d;color:#ffd1d1}.tjk-video-checkpoint-card button{width:100%;min-height:44px;border:1px solid #4f6fde;border-radius:9px;background:#3159d9;color:#fff;font-weight:850;cursor:pointer}.tjk-video-checkpoint-card button[hidden]{display:none}.tjk-video-footer{display:flex;flex-wrap:wrap;gap:8px;padding:11px 14px;background:#111827}.tjk-video-footer button{padding:7px 11px;border:1px solid #35445b;border-radius:8px;background:#1d2939;color:#e7edf6;cursor:pointer}.tjk-video-footer button.is-complete{border-color:#2b8a57;color:#baf3d0}.tjk-video-no-source{padding:50px 20px;text-align:center;color:#c5cfde} html[data-theme="dark"] .course-media-panel,html[data-theme="dark"] .course-checkpoint{background:#151e2d;border-color:#334155}html[data-theme="dark"] .course-media-field input,html[data-theme="dark"] .course-media-field textarea,html[data-theme="dark"] .course-media-field select,html[data-theme="dark"] .course-checkpoint-fields input,html[data-theme="dark"] .course-checkpoint-fields textarea,html[data-theme="dark"] .course-checkpoint-fields select{background:#0f1724;color:#edf2f7;border-color:#41506a} @media(max-width:900px){.course-media-grid,.tjk-video-checkpoint-overlay{grid-template-columns:1fr}.tjk-video-checkpoint-overlay{overflow:auto;align-content:start}.tjk-video-board-wrap{max-width:540px}.course-checkpoint-fields{grid-template-columns:1fr}.course-checkpoint-fields .is-wide{grid-column:auto}} .course-media-quicksteps{margin:0 0 18px;padding:13px 18px 13px 34px;border:1px solid #d9e4f3;border-radius:10px;background:#f5f8fd;color:#42526a;line-height:1.55}.course-media-quicksteps li+li{margin-top:4px}.course-media-editor{scroll-margin-top:92px;transition:box-shadow .2s ease,border-color .2s ease}.course-media-editor.is-highlighted{border-color:#3270e8;box-shadow:0 0 0 4px rgba(50,112,232,.18),0 12px 30px rgba(15,23,42,.09)} html[data-theme="dark"] .course-media-quicksteps{background:#202a38;color:#c5cfdd;border-color:#46536a} /* v14.7.6 — make the founder upload area unmistakable. */ .course-media-editor{border-top:4px solid #0b5fe7} .course-media-upload-callout{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:0 0 15px;padding:12px 14px;border:1px solid #bad0f1;border-radius:10px;background:#edf4ff;color:#153b78} .course-media-upload-callout strong{display:block;margin-bottom:2px} .course-media-upload-callout span{font-size:.82rem} html[data-theme="dark"] .course-media-upload-callout{background:#183052;color:#dceaff;border-color:#44658f} @media(max-width:620px){.course-media-upload-callout{align-items:flex-start;flex-direction:column}} /* v15.1.158 — synchronized real-board recording studio/player */ .course-media-studio{display:grid;grid-template-columns:minmax(520px,1.35fr) minmax(300px,.65fr);gap:18px;align-items:start;margin-bottom:18px}.course-editing-grid{grid-template-columns:minmax(300px,.8fr) minmax(420px,1.2fr)} .course-studio-toolbar,.course-studio-nav,.course-record-controls{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.course-studio-toolbar{justify-content:space-between;margin-bottom:10px}.course-studio-toolbar label{display:flex;align-items:center;gap:8px;font-size:.8rem;font-weight:800}.course-studio-toolbar select{min-height:38px;max-width:330px;border:1px solid #c7d2e1;border-radius:8px;background:#fff;padding:6px 9px}.course-studio-toolbar button,.course-studio-nav button,.course-record-controls button{min-height:38px;padding:7px 11px;border:1px solid #c5d0df;border-radius:8px;background:#fff;color:#172842;font-weight:800;cursor:pointer}.course-record-controls{margin-top:12px}.course-record-controls .is-primary{background:#e11d48;border-color:#e11d48;color:#fff}.course-record-controls strong{font-variant-numeric:tabular-nums;font-size:1.05rem}.course-studio-stage{display:grid;grid-template-columns:minmax(320px,1fr) minmax(180px,.48fr);gap:12px;align-items:start}.course-studio-board-wrap{position:relative;width:100%;aspect-ratio:1;background:#789b59;border-radius:8px;overflow:hidden}.course-studio-board{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);width:100%;height:100%;touch-action:none;user-select:none}.course-studio-square{position:relative;display:grid;place-items:center;min-width:0;min-height:0}.course-studio-square.light{background:#eeeecf}.course-studio-square.dark{background:#789b59}.course-studio-square.is-selected{box-shadow:inset 0 0 0 4px #f2c21a}.course-studio-square.is-legal:after{content:"";position:absolute;width:22%;aspect-ratio:1;border-radius:50%;background:rgba(23,45,26,.35)}.course-studio-square.is-capture:after{width:72%;border:4px solid rgba(23,45,26,.34);background:transparent}.course-studio-square img,.course-studio-square .tjk-chess-piece{position:relative;z-index:2;max-width:100%;max-height:100%}.course-studio-annotations,.tjk-video-annotations{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;color:rgba(44,112,220,.82);z-index:4}.course-annotation-shape,.tjk-video-annotation-shape{stroke:currentColor;color:rgba(44,112,220,.82)} .course-camera-column{position:relative;min-height:180px;border-radius:10px;overflow:hidden;background:#0b1020}.course-camera-column video{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;background:#000}.course-camera-placeholder{display:grid;place-items:center;min-height:180px;color:#a8b4c5}.course-media-help{color:#66758a;font-size:.78rem;line-height:1.45}.course-founder-engine{margin-top:12px;border:1px solid #d4dde9;border-radius:9px;overflow:hidden;background:#111827;color:#e5edf8}.course-founder-engine header{display:flex;justify-content:space-between;gap:8px;padding:8px 10px;border-bottom:1px solid #2f3c50;font-size:.76rem}.course-founder-engine [data-studio-engine-lines]{display:grid}.course-founder-engine [data-studio-engine-lines]>div{display:grid;grid-template-columns:64px 1fr 42px;gap:8px;padding:7px 10px;border-bottom:1px solid #263246;font-size:.78rem}.course-founder-engine [data-studio-engine-lines]>div:last-child{border-bottom:0}.course-founder-engine [data-studio-engine-lines] p{margin:0;padding:10px;color:#aeb9c9}.course-founder-engine small{color:#91a0b4}.course-timeline-summary{margin-top:10px;padding:8px 10px;border-radius:8px;background:#edf4ff;color:#315279;font-size:.82rem}.course-edit-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}.course-edit-fields label{display:grid;gap:5px;font-size:.78rem;font-weight:800}.course-edit-fields input{padding:8px;border:1px solid #c7d2e1;border-radius:8px}.course-cut-list{display:grid;gap:6px;margin-top:12px}.course-cut-list>div{display:flex;justify-content:space-between;align-items:center;padding:7px 9px;border:1px solid #d8e0ea;border-radius:8px;background:#fff}.course-cut-list button{border:0;background:transparent;color:#b42318;font-weight:900;cursor:pointer} .tjk-video-split-stage{display:grid;grid-template-columns:minmax(280px,.8fr) minmax(420px,1.2fr);gap:16px;align-items:center;padding:16px;min-height:0}.tjk-video-media-column{display:grid;place-items:center;min-width:0}.tjk-video-media-column video{width:100%;max-height:70vh;border-radius:10px;background:#000}.tjk-video-media-column audio{width:100%}.tjk-video-live-board-column{display:grid;gap:12px;justify-items:center;min-width:0}.tjk-video-live-board-column .tjk-video-board-wrap{position:relative;width:min(100%,680px);aspect-ratio:1}.tjk-video-live-board-column .tjk-video-checkpoint-card{width:min(100%,680px);box-sizing:border-box;padding:14px}.tjk-video-live-board-column .tjk-video-checkpoint-card[hidden]{display:none!important}.tjk-video-header>div small{display:block;margin-top:2px;color:#91a0b4}.tjk-video-board-wrap{overflow:hidden;border-radius:8px}.tjk-video-annotations{z-index:4} html[data-theme="dark"] .course-studio-toolbar select,html[data-theme="dark"] .course-studio-toolbar button,html[data-theme="dark"] .course-studio-nav button,html[data-theme="dark"] .course-record-controls button,html[data-theme="dark"] .course-cut-list>div,html[data-theme="dark"] .course-edit-fields input{background:#0f1724;color:#edf2f7;border-color:#41506a}html[data-theme="dark"] .course-timeline-summary{background:#183052;color:#dceaff} @media(max-width:1050px){.course-media-studio,.course-editing-grid,.tjk-video-split-stage{grid-template-columns:1fr}.course-studio-stage{grid-template-columns:minmax(300px,1fr) minmax(170px,.42fr)}} @media(max-width:700px){.course-studio-stage{grid-template-columns:1fr}.course-camera-column{min-height:0}.course-camera-placeholder{min-height:130px}.course-edit-fields{grid-template-columns:1fr}.tjk-video-split-stage{padding:8px}.tjk-video-live-board-column,.tjk-video-live-board-column .tjk-video-board-wrap{width:100%}} /* v15.1.159 — three-column founder studio, Opening-Lab notation and YouTube-style editing workspace. */ .course-recording-panel-v159{padding:15px} .course-studio-stage-v159{display:grid;grid-template-columns:minmax(430px,1.12fr) minmax(250px,.58fr) minmax(310px,.72fr);gap:14px;align-items:start} .course-studio-left,.course-studio-middle{min-width:0}.course-studio-middle{display:grid;gap:14px;align-content:start} .course-studio-board-area{display:grid;grid-template-columns:30px minmax(0,1fr);gap:5px;align-items:stretch} .course-studio-eval{position:relative;display:flex;flex-direction:column;width:30px;min-height:0;overflow:hidden;border:1px solid #26313f;border-radius:7px;background:#1f2937;color:#fff;font-variant-numeric:tabular-nums} .course-studio-eval-black,.course-studio-eval-white{position:absolute;left:0;width:100%;transition:height .18s ease,top .18s ease,bottom .18s ease}.course-studio-eval-black{top:0;background:#1e2329}.course-studio-eval-white{bottom:0;background:#f3f4f0} .course-studio-eval span{position:absolute;z-index:2;left:50%;top:auto;bottom:6px;padding:2px 1px;writing-mode:vertical-rl;transform:translateX(-50%);white-space:nowrap;font-size:10px;font-weight:900;color:#fff;mix-blend-mode:normal;text-shadow:0 1px 2px rgba(0,0,0,.65)} .course-studio-eval.is-white-advantage span{top:auto;bottom:6px;color:#111827;text-shadow:0 1px 1px rgba(255,255,255,.65)} .course-studio-eval.is-black-advantage span{top:6px;bottom:auto;color:#fff} .course-studio-eval.is-flipped.is-white-advantage span{top:6px;bottom:auto} .course-studio-eval.is-flipped.is-black-advantage span{top:auto;bottom:6px} .course-studio-board-area .course-studio-board-wrap{width:100%;max-width:none} .course-founder-engine-v159{margin-top:0!important;background:#fff!important;color:#101827!important;border-color:#cdd6e3!important} .course-founder-engine-v159 header{background:#f5f7fa!important;color:#182338!important;border-color:#d7dee8!important} .course-founder-engine-v159 [data-studio-engine-lines]>div{border-color:#e3e7ee!important;background:#fff!important;color:#101827!important} .course-founder-engine-v159 [data-studio-engine-lines] p{color:#4f5c70!important;background:#fff!important}.course-founder-engine-v159 small{color:#6f7d91!important}.course-founder-engine-v159 b{color:#073d91!important}.course-founder-engine-v159 span{color:#101827!important} .course-camera-column-v159{margin-top:0;min-height:150px}.course-camera-column-v159 .course-camera-placeholder{min-height:150px} .course-studio-variation-panel{display:flex;flex-direction:column;min-height:0;height:min(660px,calc(100dvh - 270px));border:1px solid #d9e1ec;border-radius:10px;overflow:hidden;background:#fff;color:#172842} .course-studio-variation-panel>header{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 10px;border-bottom:1px solid #dbe2ec;background:#f6f8fb} .course-studio-variation-panel>header>div:first-child{display:grid;gap:2px;min-width:0}.course-studio-variation-panel>header span{font-size:.67rem;font-weight:850;letter-spacing:.06em;color:#69778b}.course-studio-variation-panel>header strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.91rem}.course-studio-variation-panel>header>div:last-child{display:flex;gap:4px}.course-studio-variation-panel>header button{width:34px;height:32px;border:1px solid #cbd5e1;border-radius:7px;background:#fff;color:#172842;font-size:1.25rem;font-weight:900;cursor:pointer} .course-studio-notation{flex:1;min-height:0;overflow:auto;background:#fff}.course-studio-notation .study-mainline{width:100%}.course-studio-notation .analysis-tree-move{border:0;background:transparent;color:#172842;cursor:pointer;text-align:left}.course-studio-notation .analysis-tree-move:hover{background:#edf3ff!important}.course-studio-notation .analysis-tree-move.is-current{background:#dbe9ff!important;box-shadow:inset 3px 0 0 #0b5fe7}.course-studio-notation .study-mainline-comment-row{background:#fbfcfe}.course-studio-notation .study-mainline-comment{color:#4e5d73} html[data-theme="dark"] .course-studio-variation-panel,html[data-theme="dark"] .course-studio-notation{background:#fff!important;color:#172842!important;border-color:#d9e1ec!important}html[data-theme="dark"] .course-studio-variation-panel>header{background:#f6f8fb!important;border-color:#dbe2ec!important}html[data-theme="dark"] .course-studio-variation-panel>header span{color:#69778b!important}html[data-theme="dark"] .course-studio-variation-panel>header strong,html[data-theme="dark"] .course-studio-variation-panel>header button,html[data-theme="dark"] .course-studio-notation .analysis-tree-move{color:#172842!important}html[data-theme="dark"] .course-studio-variation-panel>header button{background:#fff!important;border-color:#cbd5e1!important}html[data-theme="dark"] .course-studio-notation .study-mainline-row{border-color:#e1e7ef!important}html[data-theme="dark"] .course-studio-notation .study-mainline-number{border-color:#dbe2ec!important;color:#758196!important}html[data-theme="dark"] .course-studio-notation .study-mainline-cell+.study-mainline-cell{border-color:#edf1f6!important}html[data-theme="dark"] .course-studio-notation .study-mainline-comment-row{background:#fbfcfe!important;border-color:#e1e7ef!important}html[data-theme="dark"] .course-studio-notation .study-mainline-comment{color:#4e5d73!important} .course-media-lower-grid{margin-top:18px;grid-template-columns:minmax(330px,.75fr) minmax(440px,1.25fr)}.course-media-source-panel{align-self:start} .course-video-editor-panel{margin-top:18px;padding:0;overflow:hidden;background:#111827;border-color:#263244;color:#edf3fb}.course-video-editor-head{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:13px 16px;border-bottom:1px solid #2e3a4d;background:#0c111b}.course-video-editor-head h3{margin:2px 0 0;font-size:1.05rem}.course-video-editor-head .eyebrow{font-size:.67rem;letter-spacing:.08em;color:#9aabc0;font-weight:850}.course-video-editor-head>strong{font-variant-numeric:tabular-nums;color:#d7e2ef} .course-video-editor-workspace{display:grid;grid-template-columns:minmax(330px,1.45fr) minmax(210px,.55fr);gap:0;min-height:250px}.course-video-preview-shell{display:grid;place-items:center;padding:12px;background:#05070b}.course-media-editor-preview{display:block;width:100%;height:auto;max-height:430px;margin:0!important;border-radius:6px;background:#000}.course-video-editor-tools{display:flex;align-content:flex-start;flex-wrap:wrap;gap:8px;padding:14px;background:#121a27;border-left:1px solid #2d394c}.course-video-editor-tools button{min-height:38px;padding:7px 10px;border:1px solid #3b4a60;border-radius:7px;background:#1c2737;color:#edf3fb;font-weight:750;cursor:pointer}.course-video-editor-tools button:hover{background:#26354b}.course-video-editor-tools button.is-primary{border-color:#2f6feb;background:#2f6feb}.course-video-editor-tools button:disabled{opacity:.45;cursor:not-allowed} .course-editor-timeline{position:relative;padding:17px 12px 12px;background:#0a0f18;border-top:1px solid #29364a}.course-editor-timeline>input[type="range"]{width:100%;margin:0 0 10px;accent-color:#fff}.course-editor-track{position:relative;display:grid;grid-template-columns:64px 1fr;align-items:center;min-height:34px;margin-top:3px;border-top:1px solid #253145;color:#aebbd0;font-size:.67rem;font-weight:850}.course-editor-track>span{padding-left:4px}.course-editor-track>div{position:relative;height:24px;background:#141e2c;border-radius:4px;overflow:hidden}.course-editor-track i{position:absolute;top:2px;bottom:2px;display:block}.course-editor-track .is-board-event{width:3px;margin-left:-1px;background:#79a9ff}.course-editor-track .is-task-event{width:8px;height:8px;top:8px;bottom:auto;margin-left:-4px;transform:rotate(45deg);background:#f5c542}.course-editor-track .is-cut-range{background:rgba(239,68,68,.62);border-left:1px solid #ff8c8c;border-right:1px solid #ff8c8c} .course-video-editor-panel>.course-cut-list{margin:0;padding:10px 12px;background:#0c121d}.course-video-editor-panel>.course-cut-list>div{background:#151f2e;border-color:#334155;color:#e8eef7}.course-video-editor-panel>.course-cut-list p{margin:0;color:#8d9aae} .course-studio-annotations{color:rgba(38,110,214,.90)} @media(max-width:1320px){.course-studio-stage-v159{grid-template-columns:minmax(390px,1.05fr) minmax(240px,.58fr)}.course-studio-variation-panel{grid-column:1/-1;height:360px}.course-media-lower-grid{grid-template-columns:1fr 1fr}} @media(max-width:900px){.course-studio-stage-v159,.course-media-lower-grid,.course-video-editor-workspace{grid-template-columns:1fr}.course-studio-variation-panel{grid-column:auto;height:360px}.course-video-editor-tools{border-left:0;border-top:1px solid #2d394c}.course-video-editor-head{align-items:flex-start;flex-direction:column}} @media(max-width:620px){.course-studio-board-area{grid-template-columns:24px minmax(0,1fr);gap:3px}.course-studio-eval{width:24px}.course-studio-toolbar{align-items:stretch}.course-studio-toolbar label{width:100%;display:grid}.course-studio-toolbar select{max-width:none;width:100%}.course-studio-variation-panel{height:320px}.course-editor-track{grid-template-columns:54px 1fr}} /* v15.1.161 — separate video workspace, familiar board interaction and configurable founder engine. */ .workspace-panel[data-workspace-panel="editor"] .icc-admin-board-help{display:none!important} .workspace-panel[data-workspace-panel="video"]>.course-media-editor{margin-top:0} .course-founder-engine-v159>header{display:grid!important;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;background:#fff!important;color:#101827!important;border-bottom-color:#e1e6ee!important} .course-engine-controls{display:flex;align-items:end;justify-content:flex-end;gap:7px;flex-wrap:wrap} .course-engine-controls label{display:grid;gap:2px;color:#4f5c70!important;font-size:.64rem;font-weight:800;letter-spacing:.03em;text-transform:uppercase} .course-engine-controls select{min-width:64px;height:30px;padding:3px 22px 3px 7px;border:1px solid #cbd4e0;border-radius:6px;background:#fff;color:#101827;font:inherit;text-transform:none} .course-founder-engine-v159 [data-studio-engine-state]{color:#66758a!important;font-size:.72rem} .course-founder-engine-v159 [data-studio-engine-lines]{background:#fff!important} .course-studio-notation .study-move{cursor:pointer} .course-studio-piece-ghost{position:fixed!important;left:0;top:0;z-index:100000;pointer-events:none!important;will-change:transform;filter:drop-shadow(0 6px 8px rgba(0,0,0,.25))} .course-studio-board .is-drag-source{opacity:.15} @media(max-width:900px){.course-founder-engine-v159>header{grid-template-columns:1fr}.course-engine-controls{justify-content:flex-start}} /* v15.1.162 — fixed founder camera, Opening-Lab engine presentation and stable drag rendering. */ .course-studio-square.is-dragging-source>.tjk-chess-piece, .course-studio-square.is-dragging-source>img, .course-studio-square.is-dragging-source>*>.tjk-chess-piece, .course-studio-square.is-dragging-source>*>img{opacity:.08!important} .course-founder-engine-v162{ box-sizing:border-box!important; height:270px!important; min-height:270px!important; max-height:270px!important; overflow:hidden!important; margin:0!important; border:1px solid #dbe3ee!important; border-radius:9px!important; background:#f8fafc!important; color:#172440!important; } .course-founder-engine-v162 .study-engine-heading{background:#f8fafc!important;color:#172440!important} .course-founder-engine-v162 .study-engine-heading strong{color:#172440!important} .course-founder-engine-v162 .study-engine-body{display:block!important;min-height:0!important;background:#f8fafc!important} .course-founder-engine-v162 .study-engine-controls{grid-template-columns:minmax(82px,1fr) 58px 50px minmax(82px,104px)!important;gap:5px!important} .course-founder-engine-v162 .study-engine-controls select, .course-founder-engine-v162 .study-engine-controls button{min-width:0!important;overflow:hidden!important;text-overflow:ellipsis!important;white-space:nowrap!important;background:#fff!important;color:#172440!important;border-color:#bdc9d8!important} .course-founder-engine-v162 .study-engine-state{color:#66758a!important;background:#f8fafc!important} .course-founder-engine-v162 .course-studio-engine-lines{ box-sizing:border-box!important; height:154px!important; min-height:154px!important; max-height:154px!important; overflow:auto!important; background:#fff!important; color:#172440!important; } .course-founder-engine-v162 .course-studio-engine-lines>.analysis-pv-row, .course-founder-engine-v162 .course-studio-engine-lines>.analysis-pv-row.is-loading{ background:#fff!important; color:#172440!important; border-color:transparent!important; } .course-founder-engine-v162 .course-studio-engine-lines>button.analysis-pv-row:hover, .course-founder-engine-v162 .course-studio-engine-lines>button.analysis-pv-row:focus-visible{background:#edf3ff!important;border-color:#bcd0ff!important} .course-founder-engine-v162 .analysis-pv-line{color:#172440!important} .course-founder-engine-v162 .analysis-pv-score{color:#0f3c8f!important} .course-founder-engine-v162 .analysis-pv-row small{color:#64748b!important} html[data-theme="dark"] body .course-founder-engine-v162, html[data-theme="dark"] body .course-founder-engine-v162 .study-engine-heading, html[data-theme="dark"] body .course-founder-engine-v162 .study-engine-body, html[data-theme="dark"] body .course-founder-engine-v162 .study-engine-state{background:#f8fafc!important;color:#172440!important} html[data-theme="dark"] body .course-founder-engine-v162 .study-engine-heading strong, html[data-theme="dark"] body .course-founder-engine-v162 .study-engine-heading label{color:#172440!important} html[data-theme="dark"] body .course-founder-engine-v162 .course-studio-engine-lines, html[data-theme="dark"] body .course-founder-engine-v162 .course-studio-engine-lines>.analysis-pv-row, html[data-theme="dark"] body .course-founder-engine-v162 .course-studio-engine-lines>.analysis-pv-row.is-loading{background:#fff!important;color:#172440!important} html[data-theme="dark"] body .course-founder-engine-v162 .analysis-pv-line{color:#172440!important} html[data-theme="dark"] body .course-founder-engine-v162 .analysis-pv-score{color:#0f3c8f!important} html[data-theme="dark"] body .course-founder-engine-v162 .analysis-pv-row small{color:#64748b!important} .course-studio-middle{ grid-template-rows:270px 170px!important; gap:14px!important; align-content:start!important; } .course-camera-column-v162{ box-sizing:border-box!important; display:grid!important; place-items:center!important; height:170px!important; min-height:170px!important; max-height:170px!important; margin:0!important; overflow:hidden!important; align-self:start!important; background:#0b1020!important; } .course-camera-column-v162 video{width:100%!important;height:170px!important;aspect-ratio:auto!important;object-fit:cover!important} .course-camera-column-v162 .course-camera-placeholder{width:100%!important;height:170px!important;min-height:170px!important} @media(min-width:1321px){.course-studio-stage-v159{grid-template-columns:minmax(430px,1.12fr) minmax(300px,.64fr) minmax(310px,.72fr)}} @media(max-width:1320px){.course-studio-middle{grid-template-rows:270px 170px!important}} @media(max-width:700px){ .course-studio-middle{grid-template-rows:auto auto!important} .course-founder-engine-v162{height:auto!important;min-height:0!important;max-height:none!important} .course-founder-engine-v162 .course-studio-engine-lines{height:120px!important;min-height:120px!important;max-height:120px!important} .course-camera-column-v162,.course-camera-column-v162 video,.course-camera-column-v162 .course-camera-placeholder{height:150px!important;min-height:150px!important;max-height:150px!important} } /* v15.1.163 — WYSIWYG lesson preview, checkpoint board and non-destructive blade editor. */ .course-video-editor-head small{display:block;margin-top:3px;color:#91a1b6;font-size:.72rem;font-weight:650} .course-video-editor-workspace-v163{grid-template-columns:minmax(560px,1.55fr) minmax(230px,.45fr)!important;align-items:stretch} .course-editor-live-preview{display:grid;grid-template-columns:minmax(220px,.72fr) minmax(300px,1fr);gap:12px;align-items:center;padding:14px;background:#05070b;min-height:410px} .course-editor-media-pane{display:grid;place-items:center;min-width:0;min-height:260px;height:100%;border:1px solid #273246;border-radius:8px;background:#0a0e16;overflow:hidden} .course-editor-media-pane .course-media-editor-preview{width:100%!important;max-height:390px!important;margin:0!important;border-radius:0!important;background:#000} .course-editor-media-pane audio.course-media-editor-preview{width:calc(100% - 22px)!important;min-height:54px;margin:11px!important;background:transparent} .course-editor-board-pane{display:grid;place-items:center;min-width:0} .course-editor-preview-board-wrap{position:relative;width:min(100%,420px);aspect-ratio:1;border:1px solid #314056;border-radius:7px;overflow:hidden;background:#789b59} .course-editor-preview-board{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);width:100%;height:100%;user-select:none} .course-editor-preview-square{position:relative;display:grid;place-items:center;min-width:0;min-height:0}.course-editor-preview-square.light{background:#eeeecf}.course-editor-preview-square.dark{background:#789b59}.course-editor-preview-square img,.course-editor-preview-square .tjk-chess-piece{width:100%;height:100%;object-fit:contain;pointer-events:none} .course-editor-preview-annotations{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:4} .course-editor-tool-row{display:flex;flex-wrap:wrap;gap:7px;width:100%}.course-editor-tool-row button{flex:1 1 auto} .course-blade-button.is-active{background:#8b1f2d!important;border-color:#ef5c6e!important;color:#fff!important;box-shadow:0 0 0 2px rgba(239,92,110,.15)} .course-blade-help{width:100%;margin:0;padding:8px 9px;border:1px solid #334155;border-radius:7px;background:#0d1522;color:#adbbcf;font-size:.72rem;line-height:1.35} .course-editor-autosave{width:100%;color:#91a1b6;font-size:.7rem;font-weight:650} .course-editor-ruler{position:relative;height:24px;margin:0 0 8px 64px;border:1px solid #2a374a;border-radius:5px;background:repeating-linear-gradient(90deg,#121a27 0,#121a27 calc(10% - 1px),#344154 calc(10% - 1px),#344154 10%);cursor:pointer;overflow:visible} .course-editor-timeline.is-blade-mode .course-editor-ruler{cursor:crosshair;box-shadow:inset 0 0 0 1px #d74355} .course-editor-ruler [data-editor-playhead]{position:absolute;z-index:3;top:-5px;bottom:-5px;width:2px;margin-left:-1px;background:#fff;pointer-events:none} .course-editor-ruler [data-editor-playhead]:before{content:"";position:absolute;left:50%;top:-2px;transform:translateX(-50%);width:9px;height:9px;border-radius:50%;background:#fff} .course-editor-ruler [data-editor-blade-mark]{position:absolute;z-index:4;top:-5px;bottom:-5px;width:2px;margin-left:-1px;background:#ff5368;pointer-events:none}.course-editor-ruler [data-editor-blade-mark]:after{content:"✂";position:absolute;top:-16px;left:4px;color:#ff7080;font-size:12px} .course-editor-track-media>div{background:linear-gradient(90deg,#223047,#1a2638)!important} .course-checkpoint-position{display:grid;grid-template-columns:190px minmax(0,1fr);gap:13px;align-items:start;padding:9px;border:1px solid #d7e0ec;border-radius:9px;background:#f8fafc} .course-checkpoint-board{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);width:190px;aspect-ratio:1;border:1px solid #9ba9bb;border-radius:5px;overflow:hidden;background:#789b59} .course-checkpoint-square{position:relative;display:grid;place-items:center;min-width:0;min-height:0;padding:0;border:0;border-radius:0;appearance:none;cursor:pointer}.course-checkpoint-square.light{background:#eeeecf}.course-checkpoint-square.dark{background:#789b59}.course-checkpoint-square.is-selected{box-shadow:inset 0 0 0 3px #f2c21a}.course-checkpoint-square.is-legal:after{content:"";position:absolute;width:24%;aspect-ratio:1;border-radius:50%;background:rgba(23,45,26,.36);z-index:2}.course-checkpoint-square.is-capture:after{width:72%;border:3px solid rgba(23,45,26,.34);background:transparent}.course-checkpoint-square img,.course-checkpoint-square .tjk-chess-piece{position:relative;z-index:3;width:100%;height:100%;object-fit:contain;pointer-events:none} .course-checkpoint-move-editor{display:grid;gap:7px;min-width:0}.course-checkpoint-move-editor label{font-size:.78rem}.course-checkpoint-move-editor p{margin:0;color:#68778b;font-size:.72rem;line-height:1.4}.course-checkpoint-board-error{display:grid;place-items:center;width:100%;height:100%;padding:8px;background:#fff3f3;color:#a52828;text-align:center;font-size:.75rem} html[data-theme="dark"] .course-checkpoint-position{background:#0f1724;border-color:#41506a}.course-checkpoint-position input{background:#fff!important;color:#172842!important} @media(max-width:1150px){.course-video-editor-workspace-v163{grid-template-columns:1fr!important}.course-video-editor-tools{border-left:0!important;border-top:1px solid #2d394c}.course-editor-live-preview{grid-template-columns:minmax(200px,.7fr) minmax(300px,1fr)}} @media(max-width:760px){.course-editor-live-preview{grid-template-columns:1fr;min-height:0}.course-editor-preview-board-wrap{width:min(100%,520px)}.course-checkpoint-position{grid-template-columns:1fr}.course-checkpoint-board{width:min(100%,220px);margin:auto}.course-editor-ruler{margin-left:54px}} .course-editor-checkpoint-preview{box-sizing:border-box;width:min(100%,420px);padding:10px 11px;border:1px solid #40506a;border-radius:8px;background:#172033;color:#eef4ff;text-align:left}.course-editor-checkpoint-preview[hidden]{display:none!important}.course-editor-checkpoint-preview span{display:block;color:#89a6d0;font-size:.62rem;font-weight:900;letter-spacing:.08em}.course-editor-checkpoint-preview strong{display:block;margin-top:2px}.course-editor-checkpoint-preview small{display:block;margin-top:3px;color:#b8c5d7;line-height:1.35} /* v15.1.164 — recorded-board lessons and a unified YouTube-like player. */ .tjk-video-course-v164{max-width:1500px;margin:0 auto;border:0!important;border-radius:12px;background:#000!important;color:#fff;overflow:hidden;box-shadow:0 14px 42px rgba(0,0,0,.28)} .tjk-video-course-v164 .tjk-video-theatre{position:relative;background:#000;outline:0;isolation:isolate} .tjk-video-course-v164 .tjk-video-composition{position:relative;display:grid;grid-template-columns:56.25% 43.75%;width:100%;aspect-ratio:16/9;min-height:0;background:#000;overflow:hidden} .tjk-video-course-v164 .tjk-video-board-pane{position:relative;display:grid;place-items:center;min-width:0;min-height:0;width:100%;height:100%;background:#000;overflow:hidden} .tjk-video-course-v164 .tjk-video-board-pane>[data-video-board-recording], .tjk-video-course-v164 .tjk-video-board-pane>.tjk-video-board-wrap{position:absolute;inset:0;box-sizing:border-box;width:100%!important;height:100%!important;max-width:none!important;max-height:none!important;margin:0!important;border:0!important;border-radius:0!important;background:#789b59;object-fit:contain} .tjk-video-course-v164 .tjk-video-board-pane>[data-video-board-recording]{display:block;background:#000} .tjk-video-course-v164 .tjk-video-board-pane>[data-video-board-recording][hidden], .tjk-video-course-v164 .tjk-video-board-pane>.tjk-video-board-wrap[hidden]{display:none!important} .tjk-video-course-v164 .tjk-video-presenter-pane{position:relative;display:grid;place-items:center;min-width:0;min-height:0;width:100%;height:100%;background:#080808;overflow:hidden;border-left:1px solid rgba(255,255,255,.08)} .tjk-video-course-v164 .tjk-video-presenter-pane video{display:block;width:100%;height:100%;max-height:none!important;object-fit:contain;background:#000} .tjk-video-course-v164 .tjk-video-presenter-pane audio.tjk-video-hidden-master, .tjk-video-course-v164 .tjk-video-hidden-master{position:absolute!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important} .tjk-video-course-v164 .tjk-video-audio-card{display:grid;place-items:center;gap:8px;color:#cdd6e4;text-align:center}.tjk-video-course-v164 .tjk-video-audio-card>span{font-size:4rem}.tjk-video-course-v164 .tjk-video-audio-card strong{font-size:1.1rem} .tjk-video-course-v164 .tjk-video-title-overlay{position:absolute;z-index:12;top:0;left:0;right:0;display:flex;justify-content:space-between;gap:18px;padding:17px 20px 34px;background:linear-gradient(180deg,rgba(0,0,0,.78),rgba(0,0,0,0));pointer-events:none;text-shadow:0 1px 3px #000}.tjk-video-course-v164 .tjk-video-title-overlay strong{font-size:clamp(.92rem,1.5vw,1.3rem)}.tjk-video-course-v164 .tjk-video-title-overlay span{color:#e1e6ef;font-size:.78rem} .tjk-video-course-v164 .tjk-video-checkpoint-card{position:absolute;z-index:15;right:2%;bottom:76px;width:min(39%,460px);box-sizing:border-box;padding:17px 18px;border:1px solid rgba(255,255,255,.2);border-radius:12px;background:rgba(16,23,36,.94);box-shadow:0 14px 35px rgba(0,0,0,.34);backdrop-filter:blur(8px)} .tjk-video-course-v164 .tjk-video-checkpoint-card[hidden]{display:none!important}.tjk-video-course-v164 .tjk-video-checkpoint-card .eyebrow{display:block;margin-bottom:4px;color:#8fb7ff;font-size:.66rem;font-weight:900;letter-spacing:.09em}.tjk-video-course-v164 .tjk-video-checkpoint-card h3{margin:0 0 6px}.tjk-video-course-v164 .tjk-video-checkpoint-card p{margin:0;color:#cbd5e1}.tjk-video-course-v164 .tjk-video-status{min-height:0;margin:11px 0 0;padding:9px 10px} .tjk-video-course-v164 .tjk-video-controls{position:absolute;z-index:20;left:0;right:0;bottom:0;padding:34px 12px 8px;background:linear-gradient(0deg,rgba(0,0,0,.92),rgba(0,0,0,.7) 48%,rgba(0,0,0,0));transition:opacity .16s ease} .tjk-video-course-v164 .tjk-video-progress-shell{position:relative;height:18px;display:flex;align-items:center}.tjk-video-course-v164 [data-video-progress]{position:relative;z-index:2;width:100%;height:4px;margin:0;accent-color:#f00033;cursor:pointer}.tjk-video-course-v164 [data-video-progress]:hover{height:6px} .tjk-video-course-v164 .tjk-video-checkpoint-marks{position:absolute;z-index:3;inset:0 7px;pointer-events:none}.tjk-video-course-v164 .tjk-video-checkpoint-marks i{position:absolute;top:6px;width:7px;height:7px;margin-left:-3px;transform:rotate(45deg);border:1px solid #2b2100;background:#f8cf38;box-shadow:0 0 0 1px rgba(255,255,255,.28)} .tjk-video-course-v164 .tjk-video-control-row{display:flex;align-items:center;gap:6px;height:34px}.tjk-video-course-v164 .tjk-video-control-row button{display:grid;place-items:center;min-width:36px;height:34px;padding:0 8px;border:0;border-radius:4px;background:transparent;color:#fff;font:inherit;font-size:1rem;font-weight:800;cursor:pointer}.tjk-video-course-v164 .tjk-video-control-row button:hover,.tjk-video-course-v164 .tjk-video-control-row button:focus-visible{background:rgba(255,255,255,.12);outline:none}.tjk-video-course-v164 .tjk-video-control-row button.is-locked{opacity:.48}.tjk-video-course-v164 .tjk-video-time{margin-left:2px;font-size:.76rem;font-variant-numeric:tabular-nums;color:#f2f4f7}.tjk-video-course-v164 .tjk-video-time b{font-weight:700}.tjk-video-course-v164 .tjk-video-control-spacer{flex:1}.tjk-video-course-v164 .tjk-video-speed{min-width:45px!important;font-size:.78rem!important} .tjk-video-course-v164 .tjk-video-board{width:100%;height:100%;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr))}.tjk-video-course-v164 .tjk-video-square{overflow:hidden}.tjk-video-course-v164 .tjk-video-square img,.tjk-video-course-v164 .tjk-video-piece,.tjk-video-course-v164 .tjk-video-piece img{width:100%;height:100%;max-width:100%;max-height:100%;object-fit:contain} .tjk-video-course-v164.is-checkpoint-active .tjk-video-board-pane{box-shadow:inset 0 0 0 3px rgba(248,207,56,.92)} .tjk-video-course-v164 .tjk-video-footer{gap:6px;padding:8px 10px;background:#090b0f;border-top:1px solid #1e2430}.tjk-video-course-v164 .tjk-video-footer:empty{display:none}.tjk-video-course-v164 .tjk-video-footer button{padding:6px 9px;border-color:#2b3544;background:#121822;font-size:.72rem} /* The editor previews the same board-video + presenter composition as the learner sees. */ .course-editor-preview-board-wrap.has-board-video{background:#000} .course-editor-preview-board-wrap.has-board-video>[data-editor-board-video]{position:absolute;z-index:1;inset:0;display:block;width:100%;height:100%;object-fit:contain;background:#000} .course-editor-preview-board-wrap.has-board-video>.course-editor-preview-board, .course-editor-preview-board-wrap.has-board-video>.course-editor-preview-annotations{z-index:2} .course-editor-preview-board-wrap.has-board-video:not(.is-checkpoint-preview)>.course-editor-preview-board, .course-editor-preview-board-wrap.has-board-video:not(.is-checkpoint-preview)>.course-editor-preview-annotations{visibility:hidden;pointer-events:none} .course-editor-preview-board-wrap.has-board-video.is-checkpoint-preview>[data-editor-board-video]{visibility:hidden} .course-editor-live-preview.has-board-video{grid-template-columns:minmax(320px,1fr) minmax(180px,.58fr);align-items:stretch;aspect-ratio:16/9;min-height:0;padding:0;gap:0;background:#000;overflow:hidden} .course-editor-live-preview.has-board-video .course-editor-board-pane{grid-column:1;grid-row:1;position:relative;align-self:stretch} .course-editor-live-preview.has-board-video .course-editor-preview-board-wrap{width:100%;height:100%;max-width:none;border:0;border-radius:0} .course-editor-live-preview.has-board-video .course-editor-media-pane{grid-column:2;grid-row:1;min-height:0;height:100%;border:0;border-left:1px solid #273246;border-radius:0} .course-editor-live-preview.has-board-video .course-editor-media-pane .course-media-editor-preview{width:100%!important;height:100%!important;max-height:none!important;object-fit:contain} .course-editor-live-preview.has-board-video .course-editor-checkpoint-preview{position:absolute;z-index:6;right:10px;bottom:10px;width:min(45%,330px)} @media(max-width:760px){ .tjk-video-course-v164{width:100%;border-radius:0} .tjk-video-course-v164 .tjk-video-composition{display:grid;grid-template-columns:1fr;aspect-ratio:auto;overflow:visible} .tjk-video-course-v164 .tjk-video-board-pane{width:100%;height:auto;aspect-ratio:1} .tjk-video-course-v164 .tjk-video-presenter-pane{width:100%;height:auto;aspect-ratio:16/9;border-left:0;border-top:1px solid rgba(255,255,255,.08)} .tjk-video-course-v164 .tjk-video-checkpoint-card{right:8px;bottom:68px;width:calc(100% - 16px);max-width:none;padding:12px} .tjk-video-course-v164 .tjk-video-title-overlay{padding:10px 11px 28px}.tjk-video-course-v164 .tjk-video-title-overlay span{display:none} .tjk-video-course-v164 .tjk-video-controls{padding-left:7px;padding-right:7px}.tjk-video-course-v164 .tjk-video-time{font-size:.7rem} .tjk-video-course-v164 .tjk-video-footer{overflow-x:auto;flex-wrap:nowrap}.tjk-video-course-v164 .tjk-video-footer button{flex:0 0 auto} .course-editor-live-preview.has-board-video{display:grid;grid-template-columns:1fr;aspect-ratio:auto} .course-editor-live-preview.has-board-video .course-editor-board-pane,.course-editor-live-preview.has-board-video .course-editor-media-pane{grid-column:1;grid-row:auto} .course-editor-live-preview.has-board-video .course-editor-board-pane{aspect-ratio:1}.course-editor-live-preview.has-board-video .course-editor-media-pane{aspect-ratio:16/9;border-left:0;border-top:1px solid #273246} } .tjk-video-course-v164.is-controls-hidden .tjk-video-controls{opacity:0;pointer-events:none} .tjk-video-course-v164.is-controls-hidden .tjk-video-title-overlay{opacity:0} .tjk-video-course-v164 .tjk-video-title-overlay{transition:opacity .16s ease} .tjk-video-course-v164 [data-video-progress]:disabled{cursor:not-allowed;opacity:.72} /* v15.1.165 — chapter-aware lesson browser, branded side panel and interactive drag/annotation polish. */ .tjk-video-course-v164 .tjk-video-presenter-pane.has-presenter-video video{object-fit:cover;background:#101317} .tjk-video-course-v164 .tjk-video-presenter-pane.is-info{place-items:stretch;background:radial-gradient(circle at 78% 16%,rgba(51,106,199,.24),transparent 31%),linear-gradient(145deg,#101722,#05070b 68%);border-left:1px solid rgba(255,255,255,.1)} .tjk-video-course-v164 .tjk-video-info-card{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-start;align-items:flex-start;min-width:0;height:100%;box-sizing:border-box;padding:clamp(28px,4.3vw,64px);background:linear-gradient(180deg,rgba(10,14,22,.15),rgba(0,0,0,.14));overflow:hidden} .tjk-video-course-v164 .tjk-video-info-card:after{content:"";position:absolute;right:-13%;bottom:-14%;width:58%;aspect-ratio:1;border:1px solid rgba(111,159,240,.18);border-radius:50%;box-shadow:0 0 0 34px rgba(83,132,220,.035),0 0 0 72px rgba(83,132,220,.025);pointer-events:none} .tjk-video-course-v164 .tjk-video-brand{position:relative;z-index:1;margin-bottom:8px;font-size:clamp(1.6rem,3.1vw,3.2rem);line-height:.95;font-weight:950;letter-spacing:-.055em;color:#f5f8ff}.tjk-video-course-v164 .tjk-video-brand span{color:#78aaff} .tjk-video-course-v164 .tjk-video-info-card>small{position:relative;z-index:1;max-width:100%;color:#9ca9bb;font-size:clamp(.68rem,.9vw,.88rem);font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis} .tjk-video-course-v164 .tjk-video-info-rule{position:relative;z-index:1;width:min(100%,330px);height:1px;margin:clamp(18px,2.3vw,30px) 0;background:linear-gradient(90deg,#5388dd,rgba(83,136,221,0))} .tjk-video-course-v164 .tjk-video-info-kicker{position:relative;z-index:1;color:#79a8f2;font-size:.69rem;font-weight:950;letter-spacing:.14em} .tjk-video-course-v164 .tjk-video-info-card h2{position:relative;z-index:1;max-width:100%;margin:5px 0 12px;color:#fff;font-size:clamp(1.35rem,2.4vw,2.65rem);line-height:1.03;letter-spacing:-.035em}.tjk-video-course-v164 .tjk-video-info-card h3{position:relative;z-index:1;max-width:100%;margin:0;color:#cfd8e6;font-size:clamp(.88rem,1.25vw,1.2rem);line-height:1.3}.tjk-video-course-v164 .tjk-video-info-card p{position:relative;z-index:1;margin:12px 0 0;color:#8f9bad;font-size:.75rem;font-weight:700} .tjk-video-course-v164 .tjk-video-presenter-pane.is-info audio{position:absolute!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important} .tjk-video-course-v164 .tjk-video-presenter-meta{position:absolute;z-index:3;left:12px;right:12px;bottom:12px;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 10px;border:1px solid rgba(255,255,255,.15);border-radius:8px;background:rgba(0,0,0,.58);backdrop-filter:blur(6px);text-shadow:0 1px 2px #000}.tjk-video-course-v164 .tjk-video-presenter-meta b{font-size:.78rem}.tjk-video-course-v164 .tjk-video-presenter-meta span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#d6dfec;font-size:.7rem} .tjk-video-course-v164 .tjk-video-board-wrap{touch-action:none}.tjk-video-course-v164 .tjk-video-square{touch-action:none}.tjk-video-course-v164 .tjk-video-square.is-dragging-source .tjk-video-piece{visibility:hidden} .tjk-video-piece-ghost{position:fixed!important;z-index:100000!important;left:0!important;top:0!important;display:block!important;pointer-events:none!important;will-change:transform;filter:drop-shadow(0 7px 6px rgba(0,0,0,.32))}.tjk-video-piece-ghost img,.tjk-video-piece-ghost .tjk-chess-piece{width:100%!important;height:100%!important;object-fit:contain!important} .course-video-lesson-browser{display:grid;gap:10px}.course-video-lesson-nav{display:flex;align-items:center;gap:7px;overflow-x:auto;padding:6px 2px 8px;scrollbar-width:thin}.course-video-lesson-nav button{flex:0 0 auto;display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:7px;max-width:310px;padding:8px 10px;border:1px solid #cad4e1;border-radius:9px;background:#fff;color:#203653;text-align:left;cursor:pointer}.course-video-lesson-nav button:hover{border-color:#7fa7dd;background:#f5f9ff}.course-video-lesson-nav button.is-active{border-color:#2f6fc4;background:#eaf3ff;box-shadow:inset 0 0 0 1px #2f6fc4}.course-video-lesson-nav button>span{display:grid;place-items:center;min-width:24px;height:24px;border-radius:6px;background:#dceaff;color:#245da6;font-size:.72rem;font-weight:900}.course-video-lesson-nav button>div{min-width:0}.course-video-lesson-nav button strong,.course-video-lesson-nav button small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.course-video-lesson-nav button strong{font-size:.78rem}.course-video-lesson-nav button small{margin-top:2px;color:#728096;font-size:.67rem} html[data-theme="dark"] .course-video-lesson-nav button{border-color:#3c485a;background:#18212d;color:#eef4fb}html[data-theme="dark"] .course-video-lesson-nav button:hover{background:#223147}html[data-theme="dark"] .course-video-lesson-nav button.is-active{border-color:#5e92dc;background:#223c5e}html[data-theme="dark"] .course-video-lesson-nav button>span{background:#2d4a70;color:#abd0ff}html[data-theme="dark"] .course-video-lesson-nav button small{color:#a7b4c6} .course-video-library-bar{display:grid;grid-template-columns:minmax(180px,.8fr) minmax(220px,1.2fr) auto auto;gap:9px;align-items:end;margin:0 0 14px;padding:12px;border:1px solid #d5deea;border-radius:12px;background:#f7f9fc}.course-video-library-bar label{display:grid;gap:5px;min-width:0;color:#57667a;font-size:.72rem;font-weight:850}.course-video-library-bar select{width:100%;min-width:0;height:38px;border:1px solid #bdc9d9;border-radius:8px;background:#fff;color:#19304f;padding:0 9px;font:inherit}.course-video-library-bar button{height:38px;padding:0 12px;border:1px solid #b9c7d8;border-radius:8px;background:#fff;color:#203a5d;font-weight:850;cursor:pointer}.course-video-library-bar button.is-primary{border-color:#2766ba;background:#2766ba;color:#fff}.course-video-library-bar .is-danger{color:#a12431}.course-video-library-summary{grid-column:1/-1;color:#768398;font-size:.7rem}.course-video-library-summary b{color:#29496e} html[data-theme="dark"] .course-video-library-bar{border-color:#39475b;background:#131c28}html[data-theme="dark"] .course-video-library-bar select,html[data-theme="dark"] .course-video-library-bar button{background:#1b2634;border-color:#435166;color:#edf3fb}html[data-theme="dark"] .course-video-library-bar label{color:#aab6c5}html[data-theme="dark"] .course-video-library-summary{color:#9eabba} @media(max-width:900px){.course-video-library-bar{grid-template-columns:1fr 1fr}.course-video-library-bar button{width:100%}} @media(max-width:760px){.tjk-video-course-v164 .tjk-video-presenter-pane.is-info{aspect-ratio:auto;min-height:220px}.tjk-video-course-v164 .tjk-video-info-card{padding:24px}.tjk-video-course-v164 .tjk-video-info-rule{margin:16px 0}.course-video-library-bar{grid-template-columns:1fr}.course-video-library-summary{grid-column:auto}} /* v15.1.166 — unclipped editor board, SAN task editor and YouTube-like playback controls. */ .course-editor-live-preview.has-board-video{aspect-ratio:auto!important;overflow:visible!important;grid-template-columns:minmax(360px,1fr) minmax(230px,.58fr)!important;align-items:start!important;background:#000} .course-editor-live-preview.has-board-video .course-editor-board-pane{width:100%;height:auto!important;aspect-ratio:1;align-self:start!important;overflow:visible} .course-editor-live-preview.has-board-video .course-editor-preview-board-wrap{width:100%!important;height:auto!important;aspect-ratio:1!important;overflow:hidden!important} .course-editor-live-preview.has-board-video .course-editor-media-pane{height:auto!important;min-height:0!important;aspect-ratio:16/9;align-self:start!important} .course-editor-timeline>input[type="range"]{display:none!important} .course-editor-bottom-controls{display:flex;align-items:center;gap:7px;margin:0 0 9px 64px;color:#91a1b6;font-size:.68rem;font-weight:800} .course-editor-bottom-controls button{display:grid;place-items:center;width:34px;height:30px;padding:0;border:1px solid #344157;border-radius:6px;background:#151f2d;color:#fff;cursor:pointer}.course-editor-bottom-controls button:hover{background:#223149} .course-cut-list{display:grid;gap:7px;margin-top:9px;padding:10px 12px;border-top:1px solid #243246;background:#0c131e;color:#adbbcf}.course-cut-list>strong{color:#edf3fb;font-size:.72rem}.course-cut-list>div{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:7px 9px;border:1px solid #2c3a4e;border-radius:7px;background:#121c29}.course-cut-list>div button{padding:5px 8px;border:1px solid #7d3440;border-radius:6px;background:#361821;color:#ffd7dc;font-weight:800;cursor:pointer}.course-cut-list p{margin:0;font-size:.72rem} .course-checkpoint-move-label{color:#536176;font-size:.75rem;font-weight:780}.course-checkpoint-san-list{display:flex;flex-wrap:wrap;gap:7px;align-items:center;min-height:38px}.course-checkpoint-san{min-height:34px;padding:5px 11px;border:1px solid #9eb5d2;border-radius:8px;background:#eef5ff;color:#173f72;font-size:.95rem;font-weight:900;cursor:pointer}.course-checkpoint-san:hover{border-color:#3c73b8;background:#dcecff}.course-checkpoint-no-move{color:#7b8797;font-size:.76rem;font-style:italic}.course-media-actions .is-danger{border-color:#c84b59!important;background:#fff4f5!important;color:#a52030!important}.course-checkpoint-square.is-dragging-source img,.course-checkpoint-square.is-dragging-source .tjk-chess-piece{visibility:hidden!important} .course-checkpoint-piece-ghost{position:fixed!important;left:0!important;top:0!important;z-index:100001!important;display:grid!important;place-items:center!important;pointer-events:none!important;will-change:transform;filter:drop-shadow(0 7px 7px rgba(0,0,0,.3))}.course-checkpoint-piece-ghost img{width:100%!important;height:100%!important;object-fit:contain!important} .tjk-video-course-v166 .tjk-video-composition.board-focused{grid-template-columns:62% 38%} .tjk-video-course-v166 .tjk-video-presenter-pane.is-info{background:radial-gradient(circle at 50% 38%,rgba(73,112,180,.23),transparent 34%),linear-gradient(155deg,#111824,#05070b 72%)} .tjk-video-course-v166 .tjk-video-info-card{align-items:center!important;justify-content:center!important;text-align:center!important;padding:clamp(24px,4vw,58px)!important}.tjk-video-course-v166 .tjk-video-info-card:after{display:none!important}.tjk-video-course-v166 .tjk-video-info-visual{display:grid;place-items:center;width:clamp(74px,8vw,120px);aspect-ratio:1;margin-bottom:20px;border:1px solid rgba(132,171,231,.25);border-radius:50%;background:rgba(83,132,220,.08);color:#8eb6f2;font-size:clamp(2.8rem,5vw,5.5rem);line-height:1}.tjk-video-course-v166 .tjk-video-info-card h2{margin:0!important;font-size:clamp(1rem,1.7vw,1.7rem)!important;color:#eef4ff!important}.tjk-video-course-v166 .tjk-video-info-card p{margin:9px 0 0!important;color:#96a3b5!important} .tjk-video-course-v166 .tjk-video-continue{display:block;width:100%;min-height:42px;margin-top:10px;border:1px solid #61a879!important;border-radius:8px!important;background:#1f7442!important;color:#fff!important;font-weight:900!important;cursor:pointer!important}.tjk-video-course-v166 .tjk-video-continue[hidden]{display:none!important} .tjk-video-course-v166 .tjk-video-control-row button:disabled{opacity:.38!important;cursor:not-allowed!important;background:transparent!important} .tjk-video-course-v166 .tjk-video-volume-control{display:flex;align-items:center;gap:0}.tjk-video-course-v166 .tjk-video-volume-control input{width:0;opacity:0;transition:width .16s ease,opacity .16s ease;margin:0;accent-color:#fff;cursor:pointer}.tjk-video-course-v166 .tjk-video-volume-control:hover input,.tjk-video-course-v166 .tjk-video-volume-control:focus-within input{width:82px;opacity:1;margin-right:6px} .tjk-video-course-v166 .tjk-video-settings-menu{position:absolute;z-index:30;right:48px;bottom:52px;width:210px;padding:7px;border:1px solid rgba(255,255,255,.18);border-radius:9px;background:rgba(28,28,28,.97);box-shadow:0 12px 32px rgba(0,0,0,.38);backdrop-filter:blur(8px)}.tjk-video-course-v166 .tjk-video-settings-menu[hidden]{display:none!important}.tjk-video-course-v166 .tjk-video-settings-title{padding:7px 9px;color:#d7d7d7;font-size:.72rem;font-weight:800}.tjk-video-course-v166 .tjk-video-settings-menu button{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:34px;padding:6px 9px;border:0;border-radius:5px;background:transparent;color:#fff;text-align:left;cursor:pointer}.tjk-video-course-v166 .tjk-video-settings-menu button:hover{background:rgba(255,255,255,.12)}.tjk-video-course-v166 .tjk-video-settings-menu button.is-active b:after{content:"✓";font-size:.8rem} .tjk-video-course-v166 [data-video-progress]{cursor:pointer!important;opacity:1!important}.tjk-video-course-v166.is-checkpoint-active [data-video-progress]{accent-color:#f1c94b} @media(max-width:1150px){.course-editor-live-preview.has-board-video{grid-template-columns:minmax(320px,1fr) minmax(210px,.5fr)!important}} @media(max-width:760px){.course-editor-live-preview.has-board-video{grid-template-columns:1fr!important}.course-editor-bottom-controls{margin-left:54px}.tjk-video-course-v166 .tjk-video-composition.board-focused{grid-template-columns:1fr}.tjk-video-course-v166 .tjk-video-volume-control input{width:62px;opacity:1;margin-right:4px}.tjk-video-course-v166 .tjk-video-settings-menu{right:8px;bottom:50px;width:190px}} /* v15.1.167 — drag feedback, draggable playhead and captions. */ .course-studio-square.is-dragging-source>.tjk-chess-piece, .course-studio-square.is-dragging-source>img, .course-studio-square.is-dragging-source>*>.tjk-chess-piece, .course-studio-square.is-dragging-source>*>img{visibility:hidden!important;opacity:0!important} .course-studio-square.is-drop-target, .course-checkpoint-square.is-drop-target, .tjk-video-course-v167 .tjk-video-square.is-drop-target{box-shadow:inset 0 0 0 5px #f2c21a!important;z-index:7} .course-checkpoint-delete-top{flex:0 0 auto!important;width:auto!important;min-height:30px!important;padding:4px 9px!important;border:1px solid #d88790!important;border-radius:7px!important;background:#fff3f4!important;color:#a52030!important;font-size:.72rem!important;font-weight:900!important;cursor:pointer!important} .course-caption-field{grid-column:1/-1}.course-caption-field textarea{width:100%;min-height:125px;box-sizing:border-box;padding:9px 10px;border:1px solid #c7d2e1;border-radius:8px;background:#fff;color:#172842;font:inherit;line-height:1.4;resize:vertical}.course-caption-field small{color:#748198;font-size:.69rem;font-weight:600;line-height:1.35} html[data-theme="dark"] .course-caption-field textarea{border-color:#46566a;background:#111a25;color:#eef4fb} .course-editor-ruler{cursor:ew-resize!important;touch-action:none;user-select:none}.course-editor-timeline.is-blade-mode .course-editor-ruler{cursor:crosshair!important} .course-editor-ruler [data-editor-playhead]{width:3px;margin-left:-1.5px;background:#fff;filter:drop-shadow(0 0 2px rgba(0,0,0,.65))}.course-editor-ruler [data-editor-playhead]:before{width:12px;height:12px;top:-4px;border:2px solid #172033;background:#fff;box-sizing:border-box} .tjk-video-course-v167 .tjk-video-cc{font:900 .72rem/1 Arial,sans-serif!important;letter-spacing:.02em}.tjk-video-course-v167 .tjk-video-cc.is-active{background:rgba(255,255,255,.18)!important;box-shadow:inset 0 -2px 0 #fff}.tjk-video-course-v167 .tjk-video-cc:disabled{opacity:.28!important} .tjk-video-course-v167 .tjk-video-captions{position:absolute;z-index:24;left:50%;right:auto;bottom:66px;transform:translateX(-50%);text-align:center;white-space:pre-line;pointer-events:none;color:#fff;font-size:clamp(.9rem,1.55vw,1.45rem);font-weight:760;line-height:1.35;text-shadow:0 2px 3px rgba(0,0,0,.9)}.tjk-video-course-v167 .tjk-video-captions:not([hidden]){display:block}.tjk-video-course-v167 .tjk-video-captions::first-line{background:rgba(0,0,0,.78)} .tjk-video-course-v167 .tjk-video-captions{padding:4px 8px;border-radius:4px;background:rgba(0,0,0,.72);width:max-content;max-width:84%;margin-left:auto;margin-right:auto} .tjk-video-course-v167:fullscreen .tjk-video-piece-ghost,.tjk-video-course-v167 .tjk-video-theatre:fullscreen .tjk-video-piece-ghost{z-index:2147483646!important} @media(max-width:760px){.tjk-video-course-v167 .tjk-video-captions{bottom:62px;left:50%;right:auto;max-width:92%;font-size:.95rem}} /* v15.1.168 — studio navigation/recording polish */ .course-studio-notation .analysis-tree-move.is-current{ background:#cfe1ff!important; color:#123f79!important; font-weight:900!important; box-shadow:inset 4px 0 0 #0b5fe7!important; } .course-studio-notation .analysis-tree-move.is-current *{color:inherit!important} .course-camera-column,.course-camera-column-v162{background:#000!important} .course-camera-column.is-camera-off,.course-camera-column.is-camera-off .course-camera-placeholder{background:#000!important} .course-camera-column.is-camera-off .course-camera-placeholder{color:transparent!important} .course-checkpoint-board{width:250px!important;max-width:min(100%,250px)!important} .course-checkpoint-square.is-drop-target:not(.is-legal):not(.is-capture){box-shadow:none!important} @media(max-width:760px){.course-checkpoint-board{width:min(100%,260px)!important;max-width:260px!important}} /* v15.1.170 — robust fullscreen, Resolve-style segment editing and camera framing. */ .course-checkpoint-position{grid-template-columns:300px minmax(0,1fr)!important} .course-checkpoint-board{width:300px!important;max-width:min(100%,300px)!important} .course-checkpoint-move-actions{display:flex;gap:7px;flex-wrap:wrap}.course-checkpoint-move-actions button{min-height:34px;padding:5px 10px;border:1px solid #b8c5d6;border-radius:7px;background:#fff;color:#233a59;font-weight:800;cursor:pointer}.course-checkpoint-move-actions button:disabled{opacity:.45;cursor:not-allowed} html[data-theme="dark"] .course-checkpoint-move-actions button{border-color:#425168;background:#172131;color:#eef4fb} .course-camera-column{position:relative!important}.course-camera-crop-overlay{position:absolute;inset:0;z-index:6;pointer-events:none;background:rgba(0,0,0,.18)}.course-camera-crop-overlay[hidden]{display:none!important}.course-camera-crop-frame{position:absolute;box-sizing:border-box;border:2px solid rgba(255,209,66,.96);box-shadow:0 0 0 9999px rgba(0,0,0,.38),0 0 0 1px rgba(0,0,0,.5);cursor:move;pointer-events:auto;touch-action:none}.course-camera-crop-frame:before,.course-camera-crop-frame:after{content:"";position:absolute;left:33.333%;right:33.333%;top:0;bottom:0;border-left:1px solid rgba(255,255,255,.32);border-right:1px solid rgba(255,255,255,.32);pointer-events:none}.course-camera-crop-frame:after{left:0;right:0;top:33.333%;bottom:33.333%;border:0;border-top:1px solid rgba(255,255,255,.32);border-bottom:1px solid rgba(255,255,255,.32)} .course-camera-framing-controls{display:grid;gap:7px;width:100%;padding:10px;border:1px solid #33435a;border-radius:8px;background:#101927;color:#dfe8f5}.course-camera-framing-controls>strong{font-size:.73rem}.course-camera-framing-controls label{display:grid;grid-template-columns:76px minmax(0,1fr);gap:8px;align-items:center;font-size:.69rem}.course-camera-framing-controls input[type="range"]{width:100%;accent-color:#6ea3ef}.course-camera-framing-controls button{justify-self:start!important} .course-editor-media-pane{overflow:hidden!important}.course-editor-media-pane video.course-media-editor-preview{will-change:transform;transition:transform .08s linear,object-position .08s linear} .course-editor-ruler [data-editor-cut-points],.course-editor-ruler [data-editor-selected-segment]{position:absolute;inset:0;pointer-events:none}.course-editor-cut-point{position:absolute!important;top:-4px!important;bottom:-4px!important;width:2px!important;margin-left:-1px;background:#ff6565!important;box-shadow:0 0 0 1px rgba(0,0,0,.35);z-index:4}.course-editor-ruler [data-editor-selected-segment]{z-index:2;height:100%;background:rgba(68,132,235,.34);border-left:1px solid #79a9ff;border-right:1px solid #79a9ff}.course-editor-ruler [data-editor-selected-segment][hidden]{display:none!important}.course-editor-track .is-cut-point{top:0!important;bottom:0!important;width:2px!important;margin-left:-1px;background:#ff7777!important;z-index:5} .course-editor-timeline.is-blade-mode .course-editor-ruler{cursor:crosshair!important}.course-editor-timeline:not(.is-blade-mode) .course-editor-ruler{cursor:ew-resize!important} .course-video-editor-tools .is-danger[data-media-action="delete-selected-segment"]{border-color:#8a3c49!important;background:#341923!important;color:#ffdbe0!important}.course-video-editor-tools .is-danger[data-media-action="delete-selected-segment"]:disabled{opacity:.38} /* Slightly smaller, Chessable-like board presentation: keep breathing room around the square. */ .tjk-video-course-v170 .tjk-video-board-pane>[data-video-board-recording], .tjk-video-course-v170 .tjk-video-board-pane>.tjk-video-board-wrap{inset:auto!important;left:50%!important;top:50%!important;width:auto!important;height:91%!important;max-width:94%!important;max-height:91%!important;aspect-ratio:1/1!important;transform:translate(-50%,-50%)!important} .tjk-video-course-v170 .tjk-video-composition.board-focused{grid-template-columns:58% 42%!important} .tjk-video-course-v170 .tjk-video-presenter-pane.has-presenter-video video{will-change:transform;transition:transform .08s linear,object-position .08s linear} /* Fullscreen must fill the screen even when the normal player is constrained by its course card. */ .tjk-video-course-v170:fullscreen,.tjk-video-course-v170.is-native-fullscreen{width:100vw!important;height:100vh!important;max-width:none!important;max-height:none!important;margin:0!important;border-radius:0!important;box-shadow:none!important;background:#000!important} .tjk-video-course-v170:fullscreen .tjk-video-theatre,.tjk-video-course-v170.is-native-fullscreen .tjk-video-theatre{width:100%!important;height:100%!important;display:flex!important;flex-direction:column!important;background:#000!important} .tjk-video-course-v170:fullscreen .tjk-video-composition,.tjk-video-course-v170.is-native-fullscreen .tjk-video-composition{flex:1 1 auto!important;width:100%!important;height:auto!important;min-height:0!important;aspect-ratio:auto!important} .tjk-video-course-v170:fullscreen .tjk-video-footer,.tjk-video-course-v170.is-native-fullscreen .tjk-video-footer{display:none!important} .tjk-video-course-v170:fullscreen .tjk-video-controls,.tjk-video-course-v170.is-native-fullscreen .tjk-video-controls{bottom:0!important} @media(max-width:760px){ .course-checkpoint-position{grid-template-columns:1fr!important} .course-checkpoint-board{width:min(100%,300px)!important;max-width:300px!important;margin:auto!important} .tjk-video-course-v170 .tjk-video-board-pane>[data-video-board-recording], .tjk-video-course-v170 .tjk-video-board-pane>.tjk-video-board-wrap{position:absolute!important;width:92%!important;height:auto!important;max-width:92%!important;max-height:none!important} .tjk-video-course-v170 .tjk-video-board-pane{aspect-ratio:1!important;min-height:0!important} .course-camera-framing-controls label{grid-template-columns:68px minmax(0,1fr)} } /* v15.1.171 — live exercise marking, variation repetition and Chessable-like board framing. */ .course-live-task-button{border-color:#6687c7!important;background:#eef5ff!important;color:#163f78!important}.course-live-task-button:disabled{opacity:.42!important}.course-live-task-status{min-width:150px;color:#2f6e45;font-size:.75rem;font-weight:850}.course-editor-task-buttons{display:flex;gap:8px;flex-wrap:wrap} .course-checkpoint.is-variation-checkpoint>header{background:#edf2ff}.course-checkpoint.is-variation-checkpoint>header strong:before{content:"↻ ";color:#416fce}.course-checkpoint-fields select[data-checkpoint-field="variationId"],.course-checkpoint-fields select[data-checkpoint-field="startPly"]{min-width:0} html[data-theme="dark"] .course-live-task-button{border-color:#476b9f!important;background:#172b46!important;color:#e1ecff!important}html[data-theme="dark"] .course-live-task-status{color:#9ad5ad}html[data-theme="dark"] .course-checkpoint.is-variation-checkpoint>header{background:#1b2840} .tjk-video-checkpoint-actions{display:flex;gap:8px;margin-top:10px}.tjk-video-course-v171 .tjk-video-checkpoint-actions button{width:auto;min-width:110px;flex:1}.tjk-video-course-v171 .tjk-video-hint{border-color:#66758c;background:#202b3e;color:#eef4ff}.tjk-video-course-v171 .tjk-video-hint:hover{background:#293750} .tjk-video-course-v171 .tjk-video-square.is-hint{box-shadow:inset 0 0 0 5px #ffd84a!important}.tjk-video-course-v171 .tjk-video-square.is-solution-from{box-shadow:inset 0 0 0 5px #ffd84a!important}.tjk-video-course-v171 .tjk-video-square.is-solution-to{box-shadow:inset 0 0 0 5px #4fd477!important}.tjk-video-course-v171 .tjk-video-square.is-solution-to:before{content:"";position:absolute;inset:9%;z-index:1;border:3px solid rgba(52,192,100,.85);border-radius:50%;pointer-events:none} /* Match the reference more closely: the board is prominent but not edge-to-edge. */ .tjk-video-course-v171 .tjk-video-composition{grid-template-columns:57% 43%!important} .tjk-video-course-v171 .tjk-video-board-pane>[data-video-board-recording], .tjk-video-course-v171 .tjk-video-board-pane>.tjk-video-board-wrap{height:86%!important;max-height:86%!important;max-width:90%!important;width:auto!important} .tjk-video-course-v171 .tjk-video-board-pane{background:#050505!important} @media(max-width:760px){ .course-editor-task-buttons{display:grid;grid-template-columns:1fr} .course-live-task-status{width:100%} .tjk-video-course-v171 .tjk-video-composition{grid-template-columns:1fr!important} .tjk-video-course-v171 .tjk-video-board-pane>[data-video-board-recording], .tjk-video-course-v171 .tjk-video-board-pane>.tjk-video-board-wrap{width:90%!important;height:auto!important;max-width:90%!important;max-height:none!important} .tjk-video-checkpoint-actions{gap:6px} } /* v15.1.172 — reliable fullscreen, tighter Chessable framing, honest camera crop preview, persistent multi-move exercise notation and non-destructive cut archive. */ .tjk-video-course-v171 .tjk-video-board-pane{background:#ae875e!important} .tjk-video-course-v171 .tjk-video-board-pane>[data-video-board-recording], .tjk-video-course-v171 .tjk-video-board-pane>.tjk-video-board-wrap{height:93%!important;max-height:93%!important;max-width:94%!important;width:auto!important} .tjk-video-course-v171:fullscreen,.tjk-video-course-v171.is-native-fullscreen{width:100vw!important;height:100vh!important;max-width:none!important;max-height:none!important;margin:0!important;border-radius:0!important;background:#000!important} .tjk-video-course-v171:fullscreen .tjk-video-theatre,.tjk-video-course-v171.is-native-fullscreen .tjk-video-theatre{display:flex!important;flex-direction:column!important;width:100%!important;height:100%!important} .tjk-video-course-v171:fullscreen .tjk-video-composition,.tjk-video-course-v171.is-native-fullscreen .tjk-video-composition{flex:1 1 auto!important;width:100%!important;height:auto!important;min-height:0!important;aspect-ratio:auto!important} .tjk-video-course-v171:fullscreen .tjk-video-footer,.tjk-video-course-v171.is-native-fullscreen .tjk-video-footer{display:none!important} .course-editor-media-pane{position:relative!important;background:#090c11!important} .course-editor-media-pane video.course-media-editor-preview{width:100%!important;height:100%!important;object-fit:cover!important;object-position:50% 50%!important;transition:transform .08s linear,object-position .08s linear} .course-editor-camera-crop-overlay{display:block;pointer-events:none;background:transparent!important} .course-editor-camera-crop-overlay .course-camera-crop-frame{border:2px dashed #ffd142!important;box-shadow:0 0 0 9999px rgba(0,0,0,.48),0 0 0 1px rgba(0,0,0,.65)!important;background:transparent!important} .course-editor-camera-crop-overlay .course-camera-crop-frame:after{border-color:rgba(255,255,255,.38)!important} .course-camera-crop-frame{outline:1px dashed rgba(255,255,255,.5);outline-offset:-5px} .course-editor-ruler{background:#070c14!important;overflow:hidden!important} .course-editor-active-segments{position:absolute;inset:0;z-index:1;pointer-events:none} .course-editor-active-segments .is-active-video-segment{position:absolute;top:0;bottom:0;background:repeating-linear-gradient(90deg,#172235 0,#172235 calc(10% - 1px),#344154 calc(10% - 1px),#344154 10%);border-left:1px solid #52647d;border-right:1px solid #52647d} .course-editor-ruler [data-editor-playhead]{z-index:6!important} .course-editor-ruler [data-editor-cut-points]{z-index:5!important} .course-editor-ruler [data-editor-selected-segment]{z-index:4!important} .course-editor-track .is-cut-range[data-cut-index]{pointer-events:auto!important;cursor:context-menu!important} .course-editor-track-cuts .is-cut-range[data-cut-index]:hover{background:rgba(239,68,68,.82)!important} .course-checkpoint-san-list{display:block!important;width:100%!important;border:1px solid #dbe2ec;border-radius:7px;overflow:hidden;background:#fff} .course-checkpoint-notation{display:block;width:100%} .course-checkpoint-notation-row{display:grid;grid-template-columns:38px minmax(0,1fr) minmax(0,1fr);min-height:32px;border-bottom:1px solid #e2e8f0} .course-checkpoint-notation-row:last-child{border-bottom:0} .course-checkpoint-move-number{display:flex;align-items:center;justify-content:center;color:#738197;font-size:.76rem;font-weight:850;border-right:1px solid #dbe2ec} .course-checkpoint-move-cell{display:flex;min-width:0;align-items:stretch}.course-checkpoint-move-cell+.course-checkpoint-move-cell{border-left:1px solid #edf1f6} .course-checkpoint-san{display:flex!important;align-items:center!important;justify-content:flex-start!important;width:100%!important;min-height:31px!important;padding:3px 9px!important;border:0!important;border-radius:0!important;background:transparent!important;color:#172b4d!important;font-size:.9rem!important;font-weight:800!important;text-align:left!important} .course-checkpoint-san:hover{background:#eef4ff!important}.course-checkpoint-san.is-current{background:#dbe9ff!important;box-shadow:inset 3px 0 0 #0b5fe7;color:#102e61!important} .course-checkpoint-empty-move{display:flex;align-items:center;padding:0 9px;color:#9aa6b7} html[data-theme="dark"] .course-checkpoint-san-list{background:#111a28;border-color:#35445a}html[data-theme="dark"] .course-checkpoint-notation-row{border-color:#35445a}html[data-theme="dark"] .course-checkpoint-move-number{color:#9dabc0;border-color:#35445a}html[data-theme="dark"] .course-checkpoint-move-cell+.course-checkpoint-move-cell{border-color:#2a3749}html[data-theme="dark"] .course-checkpoint-san{color:#e5edf7!important}html[data-theme="dark"] .course-checkpoint-san:hover{background:#223249!important}html[data-theme="dark"] .course-checkpoint-san.is-current{background:#24426d!important;color:#fff!important} @media(max-width:760px){ .tjk-video-course-v171 .tjk-video-board-pane>[data-video-board-recording], .tjk-video-course-v171 .tjk-video-board-pane>.tjk-video-board-wrap{width:94%!important;height:auto!important;max-width:94%!important;max-height:none!important} } /* v15.1.172 — editable automatic live captions while recording. */ .course-auto-caption-toggle{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:5px 9px;border:1px solid #cad5e3;border-radius:8px;background:#fff;color:#26384f;font-size:.76rem;font-weight:800}.course-auto-caption-toggle input{accent-color:#0b5fe7}.course-auto-caption-toggle:has(input:disabled){opacity:.5}.course-caption-language{min-height:34px;padding:5px 8px;border:1px solid #cad5e3;border-radius:8px;background:#fff;color:#26384f;font-size:.75rem;font-weight:750}.course-caption-recognition-status{min-width:0;color:#5e6f86;font-size:.72rem;font-weight:750}.course-caption-recognition-status.is-listening{color:#2f7a49}.course-caption-recognition-status.is-error{color:#b54848}.course-caption-recognition-status.is-listening:before{content:"● ";color:#d94646}.course-caption-field textarea{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;line-height:1.45} html[data-theme="dark"] .course-auto-caption-toggle,html[data-theme="dark"] .course-caption-language{border-color:#405067;background:#172131;color:#eef4fb}html[data-theme="dark"] .course-caption-recognition-status{color:#a8b6c9}html[data-theme="dark"] .course-caption-recognition-status.is-listening{color:#94d5a6}html[data-theme="dark"] .course-caption-recognition-status.is-error{color:#ff9a9a} @media(max-width:760px){.course-auto-caption-toggle,.course-caption-language{max-width:100%}.course-caption-recognition-status{width:100%}} /* v15.1.176 — Chessable-style composition, chapter tree and editor refinements. */ .tjk-video-course-v171{border-radius:0!important} .tjk-video-course-v171 .tjk-video-composition.has-presenter{position:relative!important;display:block!important;background:transparent!important;overflow:hidden!important} .tjk-video-course-v171 .tjk-video-composition.has-presenter .tjk-video-presenter-pane{position:absolute!important;inset:0!important;z-index:1!important;width:100%!important;height:100%!important;border:0!important;background:transparent!important} .tjk-video-course-v171 .tjk-video-composition.has-presenter .tjk-video-presenter-pane video{width:100%!important;height:100%!important;max-height:none!important;object-fit:cover!important;background:transparent!important;border-radius:0!important} .tjk-video-course-v171 .tjk-video-composition.has-presenter .tjk-video-board-pane{position:absolute!important;z-index:2!important;left:1.9%!important;top:50%!important;transform:translateY(-50%)!important;width:57%!important;height:94%!important;display:grid!important;place-items:center!important;background:transparent!important;box-shadow:none!important;overflow:visible!important} .tjk-video-course-v171 .tjk-video-board-frame{position:relative!important;height:92%!important;aspect-ratio:1!important;max-width:96%!important;background:#d7d6d0!important;border:1px solid #a9a8a2!important;box-shadow:0 1px 4px rgba(0,0,0,.28)!important;padding:2.55%!important;box-sizing:border-box!important} .tjk-video-course-v171 .tjk-video-board-frame>[data-video-board-recording], .tjk-video-course-v171 .tjk-video-board-frame>.tjk-video-board-wrap{position:absolute!important;inset:2.55%!important;width:94.9%!important;height:94.9%!important;max-width:none!important;max-height:none!important;margin:0!important;border:0!important;border-radius:0!important;background:#789b59!important;object-fit:cover!important;box-sizing:border-box!important} .tjk-video-course-v171 .tjk-video-board-frame>[data-video-board-recording][hidden], .tjk-video-course-v171 .tjk-video-board-frame>.tjk-video-board-wrap[hidden]{display:none!important} .tjk-video-coordinate-files{position:absolute;z-index:8;left:2.55%;right:2.55%;bottom:.25%;display:grid;grid-template-columns:repeat(8,1fr);pointer-events:none;color:#686966;font-size:clamp(8px,.72vw,12px);font-weight:700;text-transform:lowercase;text-align:center;line-height:1} .tjk-video-coordinate-ranks{position:absolute;z-index:8;left:.42%;top:2.55%;bottom:2.55%;display:grid;grid-template-rows:repeat(8,1fr);pointer-events:none;color:#686966;font-size:clamp(8px,.72vw,12px);font-weight:700;align-items:center;text-align:center;line-height:1} .tjk-video-course-v171.is-checkpoint-active .tjk-video-composition.has-presenter .tjk-video-board-pane{box-shadow:none!important} .tjk-video-course-v171.is-checkpoint-active .tjk-video-board-frame{box-shadow:0 0 0 2px rgba(248,207,56,.9),0 1px 4px rgba(0,0,0,.28)!important} .tjk-video-course-v171 .tjk-video-controls{border-radius:0!important} .tjk-video-course-v171 .tjk-video-progress-shell{transition:opacity .16s ease} .tjk-video-course-v171.is-controls-hidden .tjk-video-progress-shell{opacity:0!important} /* Watch Video: compact player with a persistent vertical course-video list. */ .course-video-lesson-browser{grid-template-columns:minmax(0,1fr) 250px!important;align-items:start!important;gap:14px!important;max-width:1260px;margin:0 auto} .course-video-lesson-browser>[data-course-video-lesson-mount]{min-width:0;max-width:960px;width:100%} .course-video-lesson-browser>[data-course-video-lesson-mount] .tjk-video-course{max-width:960px!important;border-radius:0!important} .course-video-lesson-nav{display:flex!important;flex-direction:column!important;align-items:stretch!important;gap:6px!important;overflow:visible!important;padding:0!important;order:2} .course-video-lesson-nav button{width:100%!important;max-width:none!important;min-height:56px!important;flex:none!important;border-radius:6px!important;padding:7px 8px!important} .course-video-lesson-nav button>span{min-width:22px!important;height:22px!important} .course-video-lesson-nav button strong{font-size:.74rem!important}.course-video-lesson-nav button small{font-size:.65rem!important} /* Studio chapter tree and continuations below the camera. */ .course-studio-chapter-tree-panel .course-studio-notation{padding:8px!important;overflow:auto!important} .course-studio-chapter-tree{display:grid;gap:3px} .course-studio-tree-branch{display:grid;gap:3px;margin-left:calc(var(--tree-depth,0) * 13px)} .course-studio-tree-move,.course-studio-tree-start{display:flex;align-items:center;gap:7px;width:100%;min-height:31px;padding:5px 8px;border:0;border-radius:5px;background:transparent;color:#172842;text-align:left;cursor:pointer} .course-studio-tree-move:hover,.course-studio-tree-start:hover{background:#edf3ff}.course-studio-tree-move.is-current,.course-studio-tree-start.is-current{background:#dbe9ff;box-shadow:inset 3px 0 0 #0b5fe7} .course-studio-tree-move>span{min-width:34px;color:#718096;font-size:.72rem;font-weight:750}.course-studio-tree-move>strong{font-size:.84rem} .course-studio-position-moves{display:grid;gap:6px;padding:9px 10px;border:1px solid #d4dde9;border-radius:8px;background:#fff}.course-studio-position-moves>strong{font-size:.72rem;color:#536176}.course-studio-position-moves>div{display:flex;flex-wrap:wrap;gap:6px}.course-studio-position-moves button{min-width:54px;padding:6px 9px;border:1px solid #c7d2e1;border-radius:6px;background:#f7f9fc;color:#172842;font-weight:800;cursor:pointer}.course-studio-position-moves button:hover{border-color:#7da5dc;background:#edf4ff}.course-studio-position-empty{color:#758399;font-size:.72rem} html[data-theme="dark"] .course-studio-tree-move,html[data-theme="dark"] .course-studio-tree-start{color:#eef4fb}html[data-theme="dark"] .course-studio-tree-move:hover,html[data-theme="dark"] .course-studio-tree-start:hover{background:#223249}html[data-theme="dark"] .course-studio-tree-move.is-current,html[data-theme="dark"] .course-studio-tree-start.is-current{background:#24426d}html[data-theme="dark"] .course-studio-position-moves{background:#111a28;border-color:#35445a}html[data-theme="dark"] .course-studio-position-moves>strong{color:#aab7c8}html[data-theme="dark"] .course-studio-position-moves button{background:#172131;border-color:#405067;color:#eef4fb} /* The raw camera preview explicitly shows the right-side presenter area. */ .course-camera-crop-overlay,.course-editor-camera-crop-overlay{pointer-events:none!important} .course-camera-crop-frame{pointer-events:auto!important;border-width:2px!important} .course-camera-crop-frame:before{content:"Presenter";position:absolute;top:6px;left:7px;padding:2px 5px;border-radius:3px;background:rgba(0,0,0,.56);color:#fff;font-size:.62rem;font-weight:850;letter-spacing:.03em} /* Movable task diamonds: large enough to grab without obscuring the track. */ .course-editor-track .is-task-event{width:14px!important;height:14px!important;top:5px!important;margin-left:-7px!important;cursor:ew-resize!important;pointer-events:auto!important;z-index:6!important;box-shadow:0 0 0 1px rgba(70,52,0,.75),0 1px 4px rgba(0,0,0,.45)} .course-editor-track-tasks>div{overflow:visible!important} .course-caption-server-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:8px}.course-caption-server-controls button{min-height:36px;padding:7px 10px;border:1px solid #79a0d8;border-radius:7px;background:#eef5ff;color:#174578;font-weight:850;cursor:pointer}.course-caption-server-controls button:disabled{opacity:.5;cursor:default}.course-caption-server-controls span{color:#65758b;font-size:.72rem} html[data-theme="dark"] .course-caption-server-controls button{background:#172b46;color:#e5efff;border-color:#4d709f}html[data-theme="dark"] .course-caption-server-controls span{color:#a5b2c4} @media(max-width:900px){ .course-video-lesson-browser{grid-template-columns:1fr!important}.course-video-lesson-nav{order:2!important}.course-video-lesson-browser>[data-course-video-lesson-mount]{max-width:none!important}.course-video-lesson-browser>[data-course-video-lesson-mount] .tjk-video-course{max-width:none!important} } @media(max-width:760px){ .tjk-video-course-v171 .tjk-video-composition.has-presenter{display:block!important} .tjk-video-course-v171 .tjk-video-composition.has-presenter .tjk-video-board-pane{left:2%!important;width:68%!important;height:91%!important} .tjk-video-course-v171 .tjk-video-board-frame{height:auto!important;width:94%!important;max-width:94%!important} .tjk-video-coordinate-files,.tjk-video-coordinate-ranks{font-size:8px!important} .course-studio-position-moves{margin-top:8px} } /* v15.1.176 — Watch Video is intentionally square-edged in every size. */ .tjk-video-course-v171 .tjk-video-theatre, .tjk-video-course-v171 .tjk-video-composition, .course-video-lesson-browser .tjk-video-theatre, .course-video-lesson-browser .tjk-video-composition{border-radius:0!important} /* v15.1.176 — presenter cutout composition and coordinate-only frame. */ .tjk-video-course-v171 .tjk-video-composition.has-presenter{ background-color:#17343a!important; background-image: radial-gradient(circle at 18% 22%,rgba(84,133,131,.22) 0 1px,transparent 1.4px), radial-gradient(circle at 74% 64%,rgba(2,16,23,.3) 0 1px,transparent 1.5px), linear-gradient(118deg,#132d38 0%,#1c4545 58%,#102833 100%)!important; background-size:10px 10px,14px 14px,100% 100%!important; } .tjk-video-course-v171 .tjk-video-presenter-pane.has-presenter-video{background:transparent!important;overflow:hidden!important} .tjk-video-course-v171 .tjk-video-presenter-pane.has-presenter-video .tjk-person-cutout-canvas{z-index:1!important} .tjk-video-course-v171 .tjk-video-board-pane{background:transparent!important} .tjk-video-course-v171 .tjk-video-board-frame{background:#d9d9d4!important;border:1px solid #babbb8!important;padding:2.75%!important;box-shadow:0 2px 7px rgba(0,0,0,.24)!important} .tjk-video-course-v171 .tjk-video-board-frame>[data-video-board-recording], .tjk-video-course-v171 .tjk-video-board-frame>.tjk-video-board-wrap{inset:2.75%!important;width:94.5%!important;height:94.5%!important} .tjk-video-course-v171 .tjk-video-coordinate-files{left:2.75%!important;right:2.75%!important;bottom:.35%!important;color:#6c6c69!important} .tjk-video-course-v171 .tjk-video-coordinate-ranks{left:.48%!important;top:2.75%!important;bottom:2.75%!important;color:#6c6c69!important} /* The editor preview mirrors the final composition instead of showing two boxes. */ .course-editor-live-preview.has-board-video{position:relative!important;display:block!important;aspect-ratio:16/9!important;min-height:0!important;overflow:hidden!important;padding:0!important;gap:0!important;background-color:#17343a!important;background-image:radial-gradient(circle at 18% 22%,rgba(84,133,131,.22) 0 1px,transparent 1.4px),radial-gradient(circle at 74% 64%,rgba(2,16,23,.3) 0 1px,transparent 1.5px),linear-gradient(118deg,#132d38 0%,#1c4545 58%,#102833 100%)!important;background-size:10px 10px,14px 14px,100% 100%!important} .course-editor-live-preview.has-board-video .course-editor-media-pane{position:absolute!important;inset:0!important;width:100%!important;height:100%!important;aspect-ratio:auto!important;border:0!important;background:transparent!important;overflow:hidden!important;z-index:0!important} .course-editor-live-preview.has-board-video .course-editor-media-pane .course-media-editor-preview{position:absolute!important;inset:0!important;width:100%!important;height:100%!important;max-height:none!important;object-fit:cover!important;background:transparent!important} .course-editor-live-preview.has-board-video .course-editor-board-pane{position:absolute!important;left:1.9%!important;top:50%!important;transform:translateY(-50%)!important;width:57%!important;height:94%!important;aspect-ratio:auto!important;z-index:3!important;display:grid!important;place-items:center!important;overflow:visible!important} .course-editor-live-preview.has-board-video .course-editor-preview-board-wrap{width:auto!important;height:92%!important;aspect-ratio:1!important;max-width:96%!important;border:1px solid #babbb8!important;background:#d9d9d4!important;padding:2.75%!important;box-sizing:border-box!important;overflow:hidden!important} .course-editor-live-preview.has-board-video .course-editor-preview-board-wrap>video, .course-editor-live-preview.has-board-video .course-editor-preview-board-wrap>.course-editor-preview-board, .course-editor-live-preview.has-board-video .course-editor-preview-board-wrap>.course-editor-preview-annotations{inset:2.75%!important;width:94.5%!important;height:94.5%!important} .course-editor-live-preview.has-board-video .course-editor-camera-crop-overlay{display:none!important} .course-editor-live-preview.has-board-video .tjk-person-cutout-canvas{z-index:1!important} /* Once person segmentation is active, the guide in the raw camera preview is centred. */ .course-camera-column-v162 .course-camera-crop-frame:before{content:"Presenter"} @media(max-width:760px){ .course-editor-live-preview.has-board-video{aspect-ratio:16/9!important} .course-editor-live-preview.has-board-video .course-editor-board-pane{left:2%!important;width:66%!important;height:92%!important} .course-editor-live-preview.has-board-video .course-editor-preview-board-wrap{height:90%!important;width:auto!important} } /* v15.1.183 — studio eval bar matches analysis-board behavior. */ /* v15.1.185 — normalized video-board interaction visuals. */ .tjk-video-course-v171 .tjk-video-square.is-selected{box-shadow:inset 0 0 0 3px #f2c21a!important} .tjk-video-course-v171 .tjk-video-square.is-drop-target{box-shadow:inset 0 0 0 3px #f2c21a!important} .tjk-video-course-v171 .tjk-video-square.is-capture:after{border-width:3px!important} .tjk-video-course-v171 .tjk-video-piece-ghost{filter:drop-shadow(0 3px 4px rgba(0,0,0,.25))!important} /* v15.1.185 — selectable lesson backgrounds. Keep these after all legacy background declarations so the selected style wins in player and editor. */ .tjk-video-course-v171 .tjk-video-composition, .course-editor-live-preview.has-board-video{background-color:#17343a!important} .tjk-video-course-v171 .tjk-video-composition[data-video-background="aurora"], .course-editor-live-preview.has-board-video[data-video-background="aurora"]{ background-image:radial-gradient(circle at 18% 22%,rgba(114,205,198,.28) 0 1px,transparent 1.5px),radial-gradient(circle at 74% 64%,rgba(5,27,34,.35) 0 1px,transparent 1.6px),linear-gradient(125deg,#17333b 0%,#23605a 52%,#122a3a 100%)!important; background-size:11px 11px,17px 17px,100% 100%!important } .tjk-video-course-v171 .tjk-video-composition[data-video-background="blueprint"], .course-editor-live-preview.has-board-video[data-video-background="blueprint"]{ background-color:#102842!important; background-image:linear-gradient(rgba(120,181,230,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(120,181,230,.13) 1px,transparent 1px),radial-gradient(circle at 76% 26%,rgba(57,115,174,.34),transparent 34%),linear-gradient(135deg,#0b1c30,#163a58)!important; background-size:24px 24px,24px 24px,100% 100%,100% 100%!important } .tjk-video-course-v171 .tjk-video-composition[data-video-background="graphite"], .course-editor-live-preview.has-board-video[data-video-background="graphite"]{ background-color:#23272c!important; background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.035) 0 2px,transparent 2px 12px),repeating-linear-gradient(45deg,rgba(0,0,0,.14) 0 1px,transparent 1px 12px),radial-gradient(circle at 75% 36%,#454b51 0%,#272c31 38%,#181b1f 100%)!important; background-size:auto,auto,100% 100%!important } .tjk-video-course-v171 .tjk-video-composition[data-video-background="indigo"], .course-editor-live-preview.has-board-video[data-video-background="indigo"]{ background-color:#20203f!important; background-image:radial-gradient(circle at 20% 32%,rgba(185,174,255,.42) 0 1px,transparent 1.8px),radial-gradient(circle at 64% 18%,rgba(112,196,255,.3) 0 1px,transparent 1.8px),radial-gradient(circle at 80% 78%,rgba(149,111,255,.18),transparent 28%),linear-gradient(135deg,#19182f,#2d315d 58%,#172a48)!important; background-size:19px 19px,31px 31px,100% 100%,100% 100%!important } .tjk-video-course-v171 .tjk-video-composition[data-video-background="copper"], .course-editor-live-preview.has-board-video[data-video-background="copper"]{ background-color:#3a2922!important; background-image:linear-gradient(30deg,rgba(240,185,125,.08) 12%,transparent 12.5%,transparent 87%,rgba(240,185,125,.08) 87.5%),linear-gradient(150deg,rgba(240,185,125,.08) 12%,transparent 12.5%,transparent 87%,rgba(240,185,125,.08) 87.5%),radial-gradient(circle at 74% 40%,#67452f 0%,#3a2922 42%,#201a19 100%)!important; background-size:32px 56px,32px 56px,100% 100%!important } .tjk-video-course-v171 .tjk-video-composition[data-video-background="chess"], .course-editor-live-preview.has-board-video[data-video-background="chess"]{ background-color:#183332!important; background-image:linear-gradient(45deg,rgba(214,235,220,.07) 25%,transparent 25%,transparent 75%,rgba(214,235,220,.07) 75%),linear-gradient(45deg,rgba(214,235,220,.07) 25%,transparent 25%,transparent 75%,rgba(214,235,220,.07) 75%),linear-gradient(125deg,#173737,#244b45 54%,#142d36)!important; background-position:0 0,18px 18px,0 0!important; background-size:36px 36px,36px 36px,100% 100%!important } .course-video-background-field{display:grid!important;gap:5px!important;margin-top:5px!important;font-size:.75rem!important;font-weight:800!important;color:#cbd5e1!important} .course-video-background-field select{width:100%!important;min-height:36px!important;padding:6px 8px!important;border:1px solid #43516a!important;border-radius:7px!important;background:#111a28!important;color:#eef4fb!important} /* v15.1.186 — presenter framing and background repair. */ .course-editor-media-pane video.course-media-editor-preview, .tjk-video-presenter-pane.has-presenter-video video{ will-change:transform; } /* Background choice remains visible even if presenter media is temporarily absent. */ .tjk-video-course-v171 .tjk-video-composition[data-video-background="aurora"]{background-color:#17343a!important} .tjk-video-course-v171 .tjk-video-composition[data-video-background="blueprint"]{background-color:#102842!important} .tjk-video-course-v171 .tjk-video-composition[data-video-background="graphite"]{background-color:#23272c!important} .tjk-video-course-v171 .tjk-video-composition[data-video-background="indigo"]{background-color:#20203f!important} .tjk-video-course-v171 .tjk-video-composition[data-video-background="copper"]{background-color:#3a2922!important} .tjk-video-course-v171 .tjk-video-composition[data-video-background="chess"]{background-color:#183332!important}