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transparent;color:#f3f6f8!important;background:#0b0d10!important;border-color:#ffffff1f!important}.course-lesson-scene.is-keyboard-dark .course-lesson-settings-head{color:#f5f7f8!important}.course-lesson-scene.is-keyboard-dark .course-lesson-settings-head .course-lesson-settings-reset,.course-lesson-scene.is-keyboard-dark .course-lesson-settings-head .course-lesson-settings-close{color:#bac5cc!important;background:#15191d!important;border-color:#ffffff1f!important}.course-lesson-scene.is-keyboard-dark .course-lesson-setting-label{color:#9ba8b1!important}.course-lesson-scene.is-keyboard-dark .course-lesson-segmented,.course-lesson-scene.is-keyboard-dark .course-lesson-toggle-row,.course-lesson-scene.is-keyboard-dark .course-lesson-sound-card{background:#14181c!important;border-color:#ffffff1c!important}.course-lesson-scene.is-keyboard-dark .course-lesson-segmented button{color:#aab5bd!important}.course-lesson-scene.is-keyboard-dark .course-lesson-segmented button:hover{color:#f1f5f7!important;background:#1c2227!important}.course-lesson-scene.is-keyboard-dark .course-lesson-segmented button.is-active{color:#7dd8ec!important;box-shadow:none!important;background:#20282d!important;border-color:#63d6ec3d!important}.course-lesson-scene.is-keyboard-dark .course-lesson-toggle-row strong{color:#e8edef!important}.course-lesson-scene.is-keyboard-dark .course-lesson-toggle-row small,.course-lesson-scene.is-keyboard-dark .course-lesson-volume-row label{color:#97a5ae}.course-lesson-scene.is-keyboard-dark .course-lesson-toggle-row input[type=checkbox]{background:#39434a!important}.course-lesson-scene.is-keyboard-dark .course-lesson-toggle-row input[type=checkbox]:checked{background:#43b8d0!important}.course-lesson-scene.is-keyboard-dark .course-lesson-volume-row{border-top-color:#ffffff17!important}.course-lesson-scene.is-keyboard-dark .course-lesson-volume-row output{color:#e6ecef;background:#252c31}.course-lesson-scene.is-keyboard-dark .course-lesson-volume-row input[type=range]::-webkit-slider-runnable-track{background:linear-gradient(90deg, #58c8df 0 var(--course-volume), #3b454c var(--course-volume) 100%)}.course-lesson-scene.is-keyboard-dark .course-lesson-volume-row input[type=range]::-moz-range-track{background:linear-gradient(90deg, #58c8df 0 var(--course-volume), #3b454c var(--course-volume) 100%)}.course-lesson-scene.is-keyboard-dark .course-lesson-sound-test{color:#dce5e9;background:#1b2024;border-color:#ffffff1f}@media (max-width:680px){.course-lesson-settings{top:12px;left:12px}.course-lesson-settings-panel{max-height:calc(100vh - 66px);top:46px;width:min(292px,100vw - 24px)!important;padding:12px!important}}@media (prefers-reduced-motion:reduce){.course-lesson-settings-toggle svg,.course-lesson-sound-card{transition:none!important}}