.sort-btn{transition:color .4s;color:#fff}.sort-btn:hover{color:#888}.class-block{opacity:1;transition:color .4s}.class-block:hover{opacity:1}.class-detail-btn{padding:5px;color:#fff;border-radius:5px;transition:color .2s,background .2s}.class-detail-btn:hover{color:#fff}.transition-max-height{transition-property:max-height,opacity;transition-duration:.5s;transition-timing-function:ease-in-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in-underlecture{animation-name:fadeInUp;animation-fill-mode:forwards}.underlecture-hover:hover{background:#e3b60321;cursor:pointer;text-decoration:underline}.underlecture-underline{text-decoration:underline}@keyframes fadeOutDown{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(10px)}}.transition-lecture-move{transition:margin .4s cubic-bezier(.4,0,.2,1)}.navbar-nav .nav-item .nav-link:hover{color:#000;background-color:#f0f0f0}@media (max-width: 640px){.grid.grid-cols-1>div{margin-left:15%;margin-right:15%}h1{font-size:1.5rem;margin-top:2rem!important;padding-top:1rem!important;margin-bottom:2rem!important;padding-bottom:1rem!important}h2{margin-top:1.5rem!important;padding-top:.75rem!important;margin-bottom:1.5rem!important;padding-bottom:.75rem!important}h3{margin-top:1.25rem!important;padding-top:.5rem!important;margin-bottom:1.25rem!important;padding-bottom:.5rem!important}h4,h5,h6{margin-top:1rem!important;padding-top:.5rem!important;margin-bottom:1rem!important;padding-bottom:.5rem!important}main{padding-bottom:3rem!important;margin-bottom:2rem!important}section{padding-bottom:2rem!important;margin-bottom:1.5rem!important}.container{padding-bottom:1.5rem!important;margin-bottom:1rem!important}#snippet--content{width:100%!important;max-width:100vw!important;overflow-x:hidden!important}main{width:100%!important;box-sizing:border-box!important}*{max-width:100%!important;box-sizing:border-box!important}}.card-custom{box-shadow:0 1px 8px 4px #00000040;transition:box-shadow .5s,transform .5s}.card-custom:hover{box-shadow:0 1px 8px 4px #00000080}.basic_info_with_picture_container{display:flex;flex-direction:column;padding:1.25rem;align-items:center;text-align:center;box-shadow:0 1px 8px 4px #00000040;border-radius:.375rem;margin:0 auto;width:430px;background-color:#fff;transition:box-shadow .5s,transform .5s;cursor:pointer}.basic_info_with_picture_container:hover{box-shadow:0 1px 8px 4px #000c}.three-blocks-grid{display:grid;grid-template-columns:repeat(1,minmax(0,1fr));gap:1.5rem}@media (min-width: 640px){.three-blocks-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width: 1024px){.three-blocks-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}.quiz-submit-btn{transition:background .2s}.quiz-submit-btn:hover{background:#000}main{flex:1}body{margin:0;padding:0;font-family:Inter,Arial,sans-serif;background:#fff;color:#222}