.edubros-course-protected{-webkit-user-select:none;user-select:none}.edubros-course-protected input,.edubros-course-protected textarea{-webkit-user-select:text;user-select:text}.edubros-course-hidden{visibility:hidden!important}
.edubros-course-practice .edubros-quick-tools{display:none!important}
@media(max-width:640px){
 .edubros-course-practice .edubros-mobile-toolbar-toggle,.edubros-course-practice .edubros-mobile-toolbar{display:none!important}
 .edubros-course-practice .edubros-shortcut-help{display:none!important}
 .edubros-course-practice .edubros-quick-tools:empty{display:none!important}
 .edubros-course-practice .edubros-question-area{padding:12px!important;margin:8px 0!important;min-height:0!important}
 .edubros-course-practice .edubros-question-text{font-size:17px!important;line-height:1.5!important;margin:0 0 12px!important}
 .edubros-course-practice .edubros-options-list{gap:8px!important;margin:0!important;padding:0!important}
 .edubros-course-practice .edubros-option{padding:10px 12px!important;min-height:44px!important;font-size:15px!important}
 .edubros-course-practice .edubros-option-text{font-size:15px!important;line-height:1.45!important}
}
@media print{.edubros-course-protected{display:none!important}}
.edubros-course-curtain{position:fixed;inset:0;background:#112337;color:#edf5fa;z-index:2147483640;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;text-align:center;font:16px/1.6 system-ui,sans-serif}.edubros-course-curtain[hidden]{display:none}.edubros-course-curtain button{background:#fff;color:#132d40;border:0;border-radius:9px;padding:12px 20px;font:inherit;cursor:pointer}.edubros-course-curtain strong{font-size:23px}