/* Teacher lesson planning and the student's assigned lessons. */
body[data-screen="lessons"] [data-unit-nav],body[data-screen="lessons"] .saved-label{display:none!important}
.lessons-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;padding:25px 0 30px}
.lessons-heading h1{margin:10px 0;color:var(--forest)}
.lessons-heading p{font-size:13px;line-height:1.8;color:var(--muted);max-width:550px;margin:0}
.lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.lesson-card,.lesson-panel,.lesson-empty,.student-lesson-card{background:#fff;border:1px solid #e3ebe4;border-radius:12px;box-shadow:0 8px 20px #1a1c1c08}
.lesson-card{display:flex;flex-direction:column;align-items:flex-start;text-align:left;min-height:196px;padding:24px;cursor:pointer;width:100%}
.lesson-card:hover{background:#f5f9f5;border-color:#b9cfbf}
.lesson-card h2{font-size:20px;letter-spacing:-.5px;color:var(--forest);margin:12px 0 6px}
.lesson-card p{font-size:12px;color:var(--muted);line-height:1.6;margin:0 0 auto;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lesson-card-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}
.lesson-card-meta span,.lesson-chip{font-size:10px;color:#456b52;background:#edf4ee;border-radius:6px;padding:6px 9px}
.lesson-empty{padding:52px 28px;text-align:center;background:#f0f5f1}
.lesson-empty h2{font-size:22px;color:var(--forest);margin:0 0 10px}
.lesson-empty p{font-size:12px;color:var(--muted);line-height:1.7;max-width:440px;margin:0 auto}
.lesson-back{background:none;border:0;padding:4px 0;margin:5px 0 20px;font-size:12px}
.lesson-toolbar-line{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:5px 0 20px}
.lesson-toolbar-line .lesson-back{margin:0}
.lesson-delete{color:#9a3f36!important;border-color:#dfb6b0!important;background:#fff8f6!important}
.lesson-delete:hover{background:#fbe8e4!important;border-color:#c9786f!important}
.lesson-preview-actions{display:flex;align-items:center;gap:9px;flex:none}
.lesson-editor-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(270px,1fr);gap:20px}
.lesson-editor-grid>div{min-width:0}
.lesson-panel{padding:26px;margin-bottom:20px;min-width:0}
.lesson-panel h2{font-size:18px;color:var(--forest);letter-spacing:-.3px;margin:0 0 7px}
.lesson-panel>p{font-size:12px;line-height:1.7;color:var(--muted);margin:0 0 22px}
.lesson-form-field{display:block;margin:18px 0}
.lesson-form-field span{display:block;font-size:11px;font-weight:700;color:#4d6855;margin-bottom:8px}
.lesson-form-field input,.lesson-form-field textarea{width:100%;background:#f5f8f4;border:1px solid #dce8dc;border-radius:8px;padding:12px 14px;color:var(--ink);font:inherit;font-size:13px;outline:none}
.lesson-form-field textarea{resize:vertical;min-height:88px;line-height:1.6}
.lesson-form-field input:focus,.lesson-form-field textarea:focus{border-color:#6d9e77;box-shadow:0 0 0 3px #cce3d080}
.lesson-save-status{font-size:10px;color:#667e6c;min-height:16px}
.lesson-picker{display:grid;grid-template-columns:1fr;gap:12px}
.lesson-picker select{width:100%;padding:12px;background:#f5f8f4;border:1px solid #dce8dc;border-radius:8px;color:var(--forest);font:inherit;font-size:12px}
.lesson-candidates{display:grid;grid-template-columns:minmax(0,1fr);gap:7px;max-height:265px;overflow-y:auto;overflow-x:hidden;margin-top:12px;padding-right:4px}
.lesson-candidates.has-preview{max-height:min(72vh,680px)}
.lesson-candidate-item,.lesson-candidate-controls{min-width:0}
.lesson-candidate-controls{display:flex;gap:6px;align-items:stretch}
.lesson-candidate{display:flex;gap:12px;align-items:center;flex:1;min-width:0;text-align:left;padding:13px 14px;background:#f6f9f6;border:1px solid transparent;border-radius:7px;font-size:11px;line-height:1.5;cursor:pointer}
.lesson-candidate:hover,.lesson-candidate:focus-visible{background:#eaf3ec;border-color:#8fb69a}
.lesson-candidate:focus-visible{outline:2px solid #497a56;outline-offset:2px}
.lesson-candidate.is-selected{background:#e8f2ea;border-color:#a6c6ad}
.lesson-candidate-text{min-width:0;flex:1;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow-wrap:anywhere}
.lesson-candidate-action{display:grid;place-items:center;flex:none;width:25px;height:25px;border-radius:50%;background:#e2eee5;color:var(--forest);font-size:17px;font-weight:700}
.lesson-candidate.is-selected .lesson-candidate-action{background:var(--forest);color:#fff;font-size:13px}
.lesson-candidate-status{flex:none;font-size:10px;font-weight:700;color:var(--forest)}
.lesson-preview-toggle{flex:none;min-width:90px;padding:9px 10px;border:1px solid #dfebe1;background:#edf4ee;color:var(--forest);font-size:10px;font-weight:700;cursor:pointer}
.lesson-preview-toggle:hover,.lesson-preview-toggle[aria-expanded="true"]{background:#dcecdf;border-color:#9dc2a5}
.lesson-preview-toggle:focus-visible{outline:2px solid #497a56;outline-offset:2px}
.lesson-preview-toggle span{margin-left:4px;font-size:15px;line-height:0}
.lesson-candidate-preview{margin-top:4px;padding:12px;background:#f3f6f2;border:1px solid #dce7de;border-radius:8px}
.lesson-preview-enlarge{display:block;margin:0 0 10px auto;padding:7px 10px;background:#fff;border:1px solid #cddfd1;border-radius:6px;color:var(--forest);font-size:10px;font-weight:700}
.lesson-candidate-preview .bank-source-crop{margin:0 0 8px}
.lesson-candidate-preview .bank-source-crop:last-child{margin-bottom:0}
.lesson-candidate-preview p{font-size:11px;line-height:1.7;margin:0;color:var(--forest);white-space:pre-wrap}
.lesson-preview-dialog{width:min(900px,calc(100vw - 32px));max-height:calc(100vh - 32px);padding:0;border:0;border-radius:12px;box-shadow:0 24px 75px #0b281d55;color:var(--forest);background:#fff}
.lesson-preview-dialog::backdrop{background:#10281ab3}
.lesson-preview-dialog-head{position:sticky;top:0;z-index:1;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:20px 24px;background:#fff;border-bottom:1px solid #e0e9e1}
.lesson-preview-dialog-head h2{font-size:17px;line-height:1.5;margin:7px 0 0}
.lesson-preview-dialog-head button{flex:none;border:0;background:#edf4ee;font-size:21px;line-height:1;padding:8px 11px}
.lesson-preview-dialog-body{padding:22px;background:#f3f6f2}
.lesson-preview-dialog-body .bank-source-crop{margin:0 0 14px}
.lesson-preview-dialog-body .bank-source-crop:last-child{margin-bottom:0}
.lesson-preview-dialog-body p{white-space:pre-wrap;font-size:14px;line-height:1.7}
.lesson-assigned-row button{flex:none;padding:7px 10px;font-size:10px}
.lesson-assigned-list{display:grid;gap:8px;margin-top:16px}
.lesson-assigned-row{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#f3f7f3;padding:12px 14px;border-radius:8px;font-size:11px;line-height:1.5}
.lesson-assigned-row>span{min-width:0;flex:1;overflow-wrap:anywhere}
.lesson-small-empty{font-size:12px;color:var(--muted);line-height:1.7;background:#f3f7f3;border-radius:8px;padding:20px;margin-top:14px}
.lesson-finish-actions{display:flex;align-items:center;justify-content:space-between;gap:18px;border-top:1px solid var(--line);margin-top:26px;padding-top:22px}
.lesson-finish-actions p{font-size:11px;line-height:1.6;color:var(--muted);margin:0;max-width:265px}
.lesson-finish-actions button{flex:none}
.lesson-finish-actions button:disabled{opacity:.45;cursor:not-allowed}
.lesson-preview-top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:30px 32px;margin-bottom:20px;background:#eaf2eb;border-radius:12px}
.lesson-preview-top h2{font-size:31px;letter-spacing:-.8px;color:var(--forest);margin:8px 0}
.lesson-preview-top p{font-size:12px;line-height:1.7;color:#4c6855;margin:0}
.lesson-preview-top button{flex:none;background:#fff}
.lesson-preview-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(270px,1fr);gap:20px}
.lesson-preview-exercises{display:grid;gap:10px}
.lesson-preview-exercise{border:1px solid #e0e9e1;background:#f8faf7;border-radius:8px;overflow:hidden}
.lesson-preview-exercise summary{display:flex;align-items:center;gap:13px;list-style:none;cursor:pointer;padding:16px}
.lesson-preview-exercise summary::-webkit-details-marker{display:none}
.lesson-preview-exercise summary>span:nth-child(2){min-width:0;flex:1}
.lesson-preview-exercise summary strong{display:block;font-size:12px;color:var(--forest)}
.lesson-preview-exercise summary small{display:block;font-size:11px;line-height:1.5;color:var(--muted);margin-top:5px}
.lesson-preview-exercise[open] summary{background:#edf5ee;border-bottom:1px solid #dce8df}
.lesson-preview-number{display:grid;place-items:center;flex:none;width:27px;height:27px;border-radius:7px;background:#dfece2;color:var(--forest);font-size:11px;font-weight:700}
.lesson-preview-source{padding:16px}
.lesson-preview-source .bank-source-crop{margin:0 0 10px}
.lesson-preview-students{display:grid;gap:8px;margin-top:16px}
.lesson-preview-students>div{background:#f5f8f4;padding:13px;border-radius:8px}
.lesson-preview-students strong{display:block;color:var(--forest);font-size:12px}
.lesson-preview-students small{display:block;color:var(--muted);font-size:10px;margin-top:4px}
.lesson-preview-students>button{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;padding:13px;border:1px solid transparent;border-radius:8px;background:#f5f8f4;text-align:left;cursor:pointer}.lesson-preview-students>button:hover{border-color:#afc9b7;background:#f0f6f1}.lesson-preview-students>button strong{display:block;color:var(--forest);font-size:12px}.lesson-preview-students>button small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.student-history-link{display:inline-flex;align-items:center;gap:8px;color:#53705e;font-size:9px;font-weight:700;white-space:nowrap}.student-history-link i{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.teacher-student-review{margin-top:22px;padding:22px;border:1px solid #dfe7e0;border-radius:12px;background:#f5f8f4;scroll-margin-top:95px}.teacher-student-review[hidden]{display:none}.teacher-review-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:18px}.teacher-review-head h2{margin:6px 0 3px;color:var(--forest);font-size:24px}.teacher-review-head p{margin:0;color:#68776d;font-size:11px}.teacher-review-head>button{border:1px solid #d5dfd7;border-radius:7px;background:white;color:#365641;padding:8px 12px;font-size:10px;cursor:pointer}.teacher-review-tabs{display:flex;gap:8px;overflow:auto;padding:0 0 12px;margin-bottom:14px}.teacher-review-tabs button{display:flex;align-items:center;gap:9px;min-width:160px;max-width:230px;padding:9px 11px;border:1px solid #dce5de;border-radius:8px;background:white;text-align:left;color:#46594d;cursor:pointer}.teacher-review-tabs button.active{border-color:var(--forest);background:#e8f1eb;color:var(--forest)}.teacher-review-tabs button>span{display:grid;place-items:center;width:25px;height:25px;border-radius:6px;background:#edf2ee;font-size:10px;font-weight:800;flex:none}.teacher-review-tabs button.active>span{background:var(--forest);color:white}.teacher-review-tabs small{font-size:9px;line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.teacher-student-review #teacherInteractiveExercise{background:white;border-radius:11px;overflow:hidden}.teacher-student-review .bank-exercise-card{border:0}.teacher-student-review .student-structured-exercises{display:grid;gap:16px}.teacher-student-review .student-workbook-exercise{margin:0}
.lesson-student-list{display:grid;gap:8px;margin-top:18px}
.lesson-student-check{display:flex;align-items:center;gap:12px;padding:11px 13px;background:#f5f8f4;border-radius:8px;cursor:pointer}
.lesson-student-check input{accent-color:#2b6341;width:16px;height:16px;flex:none}
.lesson-student-check strong{display:block;font-size:12px;color:var(--forest)}
.lesson-student-check small{display:block;font-size:10px;color:var(--muted);margin-top:3px}
.student-lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px}
.student-lesson-card{padding:0;overflow:hidden}
.student-lesson-card summary{cursor:pointer;list-style:none;padding:24px;display:block}
.student-lesson-card summary::-webkit-details-marker{display:none}
.student-lesson-card summary h3{font-size:20px;color:var(--forest);margin:10px 0 8px}
.student-lesson-card summary p{font-size:12px;line-height:1.6;color:var(--muted);margin:0 0 12px}
.student-lesson-card summary .lesson-open{display:inline-block;margin-top:16px;font-size:11px;color:var(--forest);font-weight:700}
.student-lesson-card[open] summary{border-bottom:1px solid var(--line)}
.student-lesson-content{padding:18px 24px 24px}
.student-lesson-exercise{border-bottom:1px solid var(--line);padding:12px 0}
.student-lesson-exercise:last-child{border:0}
.student-lesson-exercise h4{font-size:12px;color:var(--forest);margin:0 0 7px}
.student-lesson-exercise p{font-size:11px;color:var(--muted);line-height:1.6;margin:0}
.student-lesson-exercise details{margin-top:10px}
.student-lesson-exercise details summary{padding:0;color:var(--forest);font-size:11px;font-weight:700}
.student-lesson-exercise .bank-source-crop{margin:12px 0 0}
.student-lesson-launch{display:block;width:100%;padding:24px;text-align:left;cursor:pointer}
.student-lesson-launch h3{font-size:20px;color:var(--forest);margin:10px 0 8px}
.student-lesson-launch p{font-size:12px;line-height:1.6;color:var(--muted);margin:0 0 16px;min-height:38px}
.student-lesson-launch .lesson-open{display:block;margin-top:18px;font-size:11px;color:var(--forest);font-weight:700}
.student-lesson-launch:hover{background:#f4f8f4;border-color:#b9cfbf}
.student-lesson-player{padding-top:14px}
.student-lesson-hero{padding:30px 32px;margin-bottom:22px;background:#eaf2eb;border-radius:12px}
.student-lesson-hero h1{font-size:34px;letter-spacing:-.9px;color:var(--forest);margin:9px 0}
.student-lesson-hero>p{max-width:680px;font-size:13px;line-height:1.75;color:#50685d;margin:0}
.student-lesson-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:20px}
.student-lesson-meta span{font-size:10px;color:#456b52;background:#fff;border-radius:7px;padding:7px 10px}
.student-lesson-workspace{display:grid;grid-template-columns:190px minmax(0,1fr);align-items:start;gap:22px}
.student-lesson-nav{position:sticky;top:96px;display:grid;gap:7px;max-height:calc(100vh - 120px);overflow:auto;padding:15px;background:#edf3ef;border:0;border-radius:10px}
.student-lesson-nav h2{font-size:12px;letter-spacing:.8px;text-transform:uppercase;color:#587062;margin:3px 5px 9px}
.student-lesson-nav button{display:flex;align-items:center;gap:10px;width:100%;padding:11px;text-align:left;background:transparent;border-color:transparent}
.student-exercise-number{display:grid;place-items:center;flex:none;width:28px;height:28px;border-radius:7px;background:#dfeae2;font-size:11px;font-weight:700}
.student-exercise-status{min-width:0;font-size:10px;line-height:1.35;color:#66776d}
.student-lesson-nav button[data-progress-status="completed"] .student-exercise-status{color:#2d7146;font-weight:700}
.student-lesson-nav button[data-progress-status="inProgress"] .student-exercise-status{color:#8a6725;font-weight:700}
.student-lesson-nav button.active{background:var(--forest);color:#fff}
.student-lesson-nav button.active .student-exercise-number{background:#cce6d9;color:var(--forest)}
.student-lesson-nav button.active .student-exercise-status{color:#fff}
.student-lesson-main{min-width:0}
.student-interactive-card{margin:0}
.student-structured-exercises{display:grid;gap:18px}
.student-workbook-exercise{margin:0}
.student-workbook-exercise .answer-attempts{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;width:min(100%,150px);margin-top:9px}
.student-workbook-exercise .answer-attempt-step{height:7px;border-radius:99px;background:#d9dfdc;transition:background .15s}
.student-workbook-exercise .answer-attempt-step.is-correct{background:#7db697}
.student-workbook-exercise .answer-attempt-step.is-wrong{background:#dc7d78}
.student-workbook-exercise .answer-reveal{margin-top:8px;color:#a3403a;font-size:11px;font-weight:700;line-height:1.45}
.student-workbook-exercise .row input:disabled,.student-workbook-exercise .studio-select-trigger:disabled{opacity:1;cursor:not-allowed}
.student-workbook-exercise .row.correct .answer-attempt-step,.student-workbook-exercise .row.wrong .answer-attempt-step{border:0}
.student-lesson-pager{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:16px}
.student-lesson-pager span{font-size:10px;color:#66796c;text-align:center}
.student-lesson-pager button:disabled{opacity:.4;cursor:not-allowed}
@media(max-width:760px){.lesson-editor-grid,.lesson-preview-layout{grid-template-columns:1fr}.lessons-heading{align-items:flex-start;flex-direction:column}.lesson-panel{padding:22px}.lesson-preview-top{padding:24px}}
@media(max-width:850px){.student-lesson-workspace{grid-template-columns:1fr}.student-lesson-nav{position:static;display:flex;max-height:none;overflow-x:auto}.student-lesson-nav h2{display:none}.student-lesson-nav button{min-width:118px;width:auto}}
@media(max-width:600px){body[data-screen="lessons"] .bottomnav{display:flex}.lesson-grid,.student-lesson-grid{grid-template-columns:1fr}.lessons-heading h1{font-size:32px}.lesson-candidate-status{display:none}.lesson-preview-toggle{min-width:78px}.lesson-finish-actions{align-items:stretch;flex-direction:column}.lesson-finish-actions button{width:100%}.lesson-preview-top{align-items:flex-start;flex-direction:column}.lesson-preview-top h2{font-size:25px}}
@media(max-width:600px){.lesson-preview-actions{width:100%;flex-wrap:wrap}.lesson-preview-actions button{flex:1}.lesson-toolbar-line{align-items:flex-start}}
@media(max-width:600px){.student-lesson-player{padding-top:0}.student-lesson-hero{padding:24px 21px}.student-lesson-hero h1{font-size:27px}.student-lesson-pager{align-items:stretch}.student-lesson-pager button{padding:10px}.student-lesson-pager span{align-self:center}.student-lesson-main .bank-exercise-head,.student-lesson-main .bank-practice{padding-left:20px;padding-right:20px}}