.custom-scrollbar::-webkit-scrollbar{width:6px}.custom-scrollbar::-webkit-scrollbar-track{background:transparent}.custom-scrollbar::-webkit-scrollbar-thumb{background-color:#ffffff1a;border-radius:10px}.custom-scrollbar::-webkit-scrollbar-thumb:hover{background-color:#fff3}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes slide-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fade-in .3s ease-out forwards}.animate-slide-up{animation:slide-up .4s cubic-bezier(.16,1,.3,1) forwards}.course-content-html h3{font-size:1.5rem;font-weight:700;color:#111827;margin-top:2rem;margin-bottom:1rem}@media(min-width:768px){.course-content-html h3{font-size:1.875rem}}.course-content-html h4{font-size:1.25rem;font-weight:600;color:#1f2937;margin-top:1.5rem;margin-bottom:.75rem}.course-content-html p{margin-bottom:1.25rem;line-height:1.75}.course-content-html p:first-of-type:first-letter{font-size:3.5rem;font-weight:900;color:#2563eb;float:left;margin-right:.5rem;line-height:.8;margin-top:.2rem}.course-content-html ul{list-style-type:disc;padding-left:1.5rem;margin-bottom:1.25rem;margin-top:.5rem}.course-content-html li{margin-bottom:.5rem}.course-content-html blockquote{margin:2rem 0;padding:1.5rem;background-color:#f9fafb;border-left:4px solid #3b82f6;border-radius:0 .75rem .75rem 0;font-style:italic;color:#374151;font-size:1.125rem}.course-content-html strong{font-weight:600;color:#111827}.course-content-html em{font-style:italic}