.scene[data-astro-cid-vn7va7ej]{position:relative;width:min(100%,460px);height:360px;margin-inline:auto}.scene__caption[data-astro-cid-vn7va7ej]{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.board[data-astro-cid-vn7va7ej]{position:absolute;inset:68px 130px 34px 0;padding:1.15rem 1.5rem 1.15rem 1.15rem;border-radius:10px;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.08),transparent 40%),repeating-linear-gradient(0deg,transparent,transparent 27px,rgba(255,255,255,.04) 28px),#1a4632;border:12px solid #8d5a32;box-shadow:inset 0 0 0 3px #d7b07a,0 14px 28px #0712332e}.board[data-astro-cid-vn7va7ej]:after{content:"";position:absolute;left:10px;right:10px;bottom:8px;height:8px;border-radius:4px;background:#6e4528}.board[data-astro-cid-vn7va7ej] p[data-astro-cid-vn7va7ej]{position:relative;z-index:1;margin:.2rem 0;color:#f4fff6;font-family:Segoe Print,Segoe Script,Bradley Hand,cursive;font-size:1.22rem;line-height:1.35;text-shadow:0 0 1px rgba(255,255,255,.7);width:max-content;max-width:100%;clip-path:inset(0 100% 0 0);animation:chalk 9s ease infinite}.board[data-astro-cid-vn7va7ej] p[data-astro-cid-vn7va7ej]:nth-child(2){color:#ffe58a;animation-delay:1s}.board[data-astro-cid-vn7va7ej] p[data-astro-cid-vn7va7ej]:nth-child(3){animation-delay:2s}.puff[data-astro-cid-vn7va7ej],.puff--2[data-astro-cid-vn7va7ej]{position:absolute;right:26px;top:62%;width:7px;height:7px;border-radius:50%;background:#ffffffd9;opacity:0;animation:puff 1.8s ease-in-out infinite}.puff--2[data-astro-cid-vn7va7ej]{top:68%;right:36px;animation-delay:.08s}.teacher[data-astro-cid-vn7va7ej]{position:absolute;right:0;bottom:0;width:200px;height:222px;z-index:2}.frames[data-astro-cid-vn7va7ej]{position:absolute;inset:0;z-index:2;transform-origin:50% 90%;animation:nod 2.8s ease-in-out infinite;mask-image:linear-gradient(180deg,#000 88%,transparent 100%)}.frame[data-astro-cid-vn7va7ej]{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:bottom;filter:drop-shadow(0 10px 18px rgba(7,18,51,.16))}.frame--open[data-astro-cid-vn7va7ej]{opacity:0;animation:talk 3s steps(1) infinite}.bubble[data-astro-cid-vn7va7ej]{position:absolute;top:0;right:0;z-index:4;display:grid;width:214px;margin:0;padding:.55rem .75rem;border-radius:16px;background:#fff;color:#0b1220;font-size:.92rem;font-weight:700;line-height:1.25;box-shadow:0 10px 24px #0712331f}.bubble[data-astro-cid-vn7va7ej]:after{content:"";position:absolute;right:84px;bottom:-8px;border-width:8px 8px 0;border-style:solid;border-color:white transparent transparent}.bubble[data-astro-cid-vn7va7ej] span[data-astro-cid-vn7va7ej]{grid-area:1 / 1;opacity:0;animation:say 9s steps(1,end) infinite}.bubble[data-astro-cid-vn7va7ej] span[data-astro-cid-vn7va7ej]:nth-child(2){animation-delay:-6s}.bubble[data-astro-cid-vn7va7ej] span[data-astro-cid-vn7va7ej]:nth-child(3){animation-delay:-3s}@keyframes chalk{0%{clip-path:inset(0 100% 0 0)}16%,80%{clip-path:inset(0 0 0 0)}94%,to{clip-path:inset(0 100% 0 0)}}@keyframes talk{0%,20%,34%,48%,60%,to{opacity:0}12%,28%,42%,54%{opacity:1}}@keyframes nod{0%,to{transform:rotate(-1.5deg)}50%{transform:rotate(2deg) translateY(1px)}}@keyframes say{0%,31%{opacity:1}33%,to{opacity:0}}@keyframes puff{0%,46%{opacity:0;transform:scale(.3)}52%{opacity:.9;transform:scale(1)}72%{opacity:0;transform:translate(-8px,-12px) scale(1.6)}}@media(prefers-reduced-motion:reduce){.board[data-astro-cid-vn7va7ej] p[data-astro-cid-vn7va7ej],.frames[data-astro-cid-vn7va7ej],.frame--open[data-astro-cid-vn7va7ej],.bubble[data-astro-cid-vn7va7ej] span[data-astro-cid-vn7va7ej],.puff[data-astro-cid-vn7va7ej],.puff--2[data-astro-cid-vn7va7ej]{animation:none}.board[data-astro-cid-vn7va7ej] p[data-astro-cid-vn7va7ej]{clip-path:none}.bubble[data-astro-cid-vn7va7ej] span[data-astro-cid-vn7va7ej]{opacity:1}.bubble[data-astro-cid-vn7va7ej] span[data-astro-cid-vn7va7ej]:nth-child(n+2){display:none}.puff[data-astro-cid-vn7va7ej],.puff--2[data-astro-cid-vn7va7ej]{display:none}}.course-intro[data-astro-cid-2t2vcjtp]{display:grid;grid-template-columns:1.05fr .95fr;gap:1.5rem;align-items:center}@media(max-width:800px){.course-intro[data-astro-cid-2t2vcjtp]{grid-template-columns:1fr}}