.hero-portal-art{cursor:pointer;isolation:isolate;outline-offset:4px}
.hero-portal-art:before{content:'';position:absolute;inset:13% 4% 0;border-radius:50%;background:radial-gradient(ellipse,#d1d29625,transparent 68%);opacity:0;transform:scale(.9);transition:opacity .2s,transform .25s;pointer-events:none;z-index:-1}
.hero-portal-art img{transition:transform .25s ease,filter .25s ease;pointer-events:none}
.hero-portal-art:hover img,.hero-portal-art:focus-visible img{transform:translateY(-7px) scale(1.025);filter:brightness(1.2) drop-shadow(0 0 22px #b4d49c66)}
.hero-portal-art:hover:before,.hero-portal-art:focus-visible:before{opacity:1;transform:scale(1.08)}
.portal-open .hero-portal-art:hover img,.portal-open .hero-portal-art:focus-visible img{filter:brightness(1.15) drop-shadow(0 0 27px #e4c67b77)}
.chapter-stage .chapter-arrow{pointer-events:auto!important;z-index:10;cursor:pointer}
.chapter-arrow svg,.chapter-arrow svg *{pointer-events:none}
.chapter-arrow:hover svg{transform:scale(1.15)}
.chapter-arrow svg{transition:transform .18s}
.selected-lessons .lesson-entry .lesson-portal-icon img{transition:transform .2s,filter .2s}
.selected-lessons .lesson-entry:hover .lesson-portal-icon img{transform:translateY(-3px);filter:brightness(1.25) drop-shadow(0 0 9px #b2cf9555)}
.selector-dots button:hover span{background:#e5d095;box-shadow:0 0 12px #dec47a66}
@media(prefers-reduced-motion:reduce){.hero-portal-art:hover img,.hero-portal-art:focus-visible img,.chapter-arrow:hover svg,.lesson-entry:hover .lesson-portal-icon img{transform:none}.hero-portal-art:before{transition:none}}