.lecture-source-options,.lecture-course-actions{display:flex;gap:12px;flex-wrap:wrap;margin:10px 0}
.lecture-source-options label{padding:10px 14px;border:1px solid #d5dce6;border-radius:8px;cursor:pointer}
#lecture-course-source{padding-top:12px;border-top:1px solid #e8e8e8}
#lecture-course-card,#lecture-course-effects{padding:18px;margin:16px 0;border:1px solid #d5dce6;border-radius:12px;background:#f8fbff}
#lecture-course-card h3,#lecture-course-effects h3{margin:0 0 10px}
#lecture-course-status{white-space:pre-wrap;color:#805018}
#lecture-course-scripts{max-height:260px;overflow:auto;white-space:pre-wrap}
.lecture-course-actions button{padding:9px 14px;border-radius:7px;border:1px solid #c9d5e8;background:white;cursor:pointer}
#lecture-course-edit{background:#245ad1;color:#fff}
#lecture-course-effects label{display:inline-flex;align-items:center;gap:6px;margin:10px}
#lecture-course-effects input,#lecture-course-source input{width:auto}
.lecture-upload-mode #pane-single,.lecture-upload-mode #lecture-ppt-style-options,.lecture-upload-mode #title-input-wrap,.lecture-upload-mode .mode-tabs{display:none!important}
.lecture-upload-mode #live-preview-box{display:none!important}
#lecture-course-audio{padding:18px;margin:16px 0;border:1px solid #d5dce6;border-radius:12px;background:#f8fbff}
#lecture-course-audio[hidden],#lecture-course-audio [hidden]{display:none!important}
#lecture-course-audio label{display:block;margin:10px 0}
#lecture-course-audio input[type=number]{width:110px;margin-left:10px}
.lecture-audio-recording{padding:18px;border:1px solid #e3e7eb;border-radius:14px;background:#fff;box-shadow:0 3px 12px #16223505;margin:14px 0}
.lecture-audio-recording textarea{width:100%;min-height:100px;box-sizing:border-box}
.lecture-audio-recording button{margin:0}
#lecture-course-preview img{display:block;width:100%;height:auto;margin-top:12px}
#lecture-course-preview[hidden],#lecture-course-preview img[hidden]{display:none!important}
#lecture-course-source[hidden],#lecture-course-card[hidden],#lecture-course-effects[hidden],#lecture-course-card [hidden]{display:none!important}

/* Course controls share the site's orange primary action and quiet secondary controls. */
#lecture-course-card,#lecture-course-effects,#lecture-course-audio{border-color:#e3e7eb;background:#fafbfc;border-radius:16px;padding:22px}
#lecture-course-audio h3,#lecture-course-card h3,#lecture-course-effects h3{font-size:18px;color:#1e2633;margin:0 0 14px}
#lecture-course-audio .batch-hint{color:#687386;font-size:13px;line-height:1.75}
#lecture-course-audio select,#lecture-course-audio input[type=number],#lecture-course-audio textarea{font:inherit;color:#263448;border:1px solid #dbe2ea;border-radius:9px;background:#fff;padding:10px 12px;box-shadow:0 1px 2px #16223505}
#lecture-course-audio select{margin:8px 0;min-height:42px;max-width:100%;width:100%}
#lecture-course-audio input[type=number]{width:110px;min-height:42px}
#lecture-course-audio textarea{margin-top:14px;resize:vertical;line-height:1.7}
.lecture-audio-recording-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.lecture-audio-recording-head strong{font-size:15px;color:#1e2633}
.lecture-audio-badge{flex-shrink:0;font-size:11px;font-weight:650;color:#687386;background:#f0f2f5;padding:3px 9px;border-radius:999px}
.lecture-audio-badge.uploaded{color:#24724b;background:#edf8f1}
#lecture-course-audio .lecture-audio-recording>p{color:#687386;font-size:13px;line-height:1.65;margin:10px 0 14px;overflow-wrap:anywhere}
#lecture-course-audio .lecture-audio-upload{position:relative;display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:9px 17px;margin:0 0 14px;border:1px solid #f2602a;border-radius:9px;background:#f2602a;color:#fff;font-size:14px;font-weight:650;cursor:pointer;overflow:hidden;transition:background .15s,box-shadow .15s}
#lecture-course-audio .lecture-audio-upload:hover{background:#d94c1d;border-color:#d94c1d;box-shadow:0 4px 12px #f2602a20}
#lecture-course-audio .lecture-audio-upload input[type=file]{position:absolute;inset:0;width:100%;height:100%;padding:0;margin:0;opacity:0;cursor:pointer}
#lecture-course-audio .lecture-audio-upload:has(input:disabled){opacity:.5;cursor:wait}
#lecture-course-audio .lecture-audio-upload:focus-within{outline:3px solid #f2602a40;outline-offset:3px}
.lecture-audio-recording audio{display:block;width:100%;height:42px;border-radius:10px;background:#f1f3f5;margin-bottom:14px}
.lecture-audio-recording-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
#lecture-course-audio button,.lecture-course-actions button{font:inherit;font-size:13px;font-weight:650;min-height:40px;padding:9px 14px;border:1px solid #dbe2ea;border-radius:9px;color:#4b5669;background:#fff;cursor:pointer;transition:background .15s,border-color .15s}
#lecture-course-audio button:hover,.lecture-course-actions button:hover{border-color:#f3b18d;background:#fff7f1;color:#a9411d}
#lecture-course-audio .lecture-audio-confirm{background:#edf8f1;border-color:#cce8d7;color:#24724b}
#lecture-course-audio button:disabled{opacity:.5;cursor:wait}
#lecture-course-audio button:focus-visible,#lecture-course-audio select:focus-visible,#lecture-course-audio input[type=number]:focus-visible,#lecture-course-audio textarea:focus-visible{outline:3px solid #f2602a35;outline-offset:2px;border-color:#f2602a}
#lecture-course-edit{background:#f2602a;color:#fff;border-color:#f2602a}
#lecture-course-edit:hover{background:#d94c1d;color:#fff;border-color:#d94c1d}
#lecture-audio-status:empty{display:none}
#lecture-audio-status:not(:empty){padding:12px 14px;background:#edf5fb;border-radius:9px;font-size:13px;color:#315d82;line-height:1.7}
.lecture-source-options label{border-color:#e3e7eb;border-radius:10px;color:#4b5669;background:#fff}
.lecture-source-options label:has(input:checked){background:#fff7f1;border-color:#f3b18d;color:#a9411d}
#lecture-course-effects input,#lecture-course-source input{accent-color:#f2602a}
@media(max-width:600px){#lecture-course-card,#lecture-course-effects,#lecture-course-audio{padding:16px}.lecture-audio-recording{padding:15px}.lecture-audio-recording-actions button{flex:1 1 auto}}
@media(prefers-reduced-motion:reduce){#lecture-course-audio .lecture-audio-upload,#lecture-course-audio button,.lecture-course-actions button{transition:none}}