:root{--ink:#2b1b5a;--sun:#ffd23f;--pink:#ff5fa2;--sky:#2eb8ff;--grass:#3dd56d;--grape:#8e5cf5;--orange:#ff8a3d;--bg:#e6f7ff;--line:4px solid var(--ink);--shadow:6px 6px 0 var(--ink)}
[hidden]{display:none!important}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{min-height:100vh;display:flex;flex-direction:column;font-family:"Baloo 2","Comic Sans MS","Chalkboard SE",sans-serif;font-size:1.15rem;line-height:1.45;color:var(--ink);background:var(--bg) radial-gradient(circle,#bfeaff 3px,transparent 3px) 0 0/34px 34px}
a{color:inherit}
:focus-visible{outline:4px dashed var(--pink);outline-offset:3px}
.main{position:relative;z-index:1;flex:1;width:100%;max-width:1100px;margin:0 auto;padding:28px 18px 48px}

/* navbar */
.navbar{position:sticky;top:0;z-index:20;background:var(--sun);border-bottom:var(--line)}
.navbar__inner{position:relative;width: 100%;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:16px}
.navbar__logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-size:1.6rem}
.navbar__logo-icon{display:grid;place-items:center;width:46px;height:46px;background:#fff;border:3px solid var(--ink);border-radius:50%;font-size:1.6rem;transform:rotate(-8deg)}
.navbar__menu{display:flex;align-items:center;gap:8px;margin-left:auto;list-style:none}
.navbar__link{display:block;padding:4px 16px;border:3px solid transparent;border-radius:999px;text-decoration:none;font-weight:700}
.navbar__link:hover{background:#fff;border-color:var(--ink)}
.navbar__link--active{background:var(--pink);color:#fff;border-color:var(--ink)}
.navbar__account{display:flex;align-items:center;gap:8px;margin-left:8px}
.navbar__user{font-weight:800}
.navbar__toggle{display:none;margin-left:auto;padding:2px 14px;font:inherit;font-size:1.6rem;background:#fff;border:3px solid var(--ink);border-radius:14px;cursor:pointer}
@media(max-width:860px){
  .navbar__toggle{display:block}
  .navbar__menu{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:6px;margin:0;padding:12px 18px;background:var(--sun);border-bottom:var(--line);text-align:center}
  .navbar__menu--open{display:flex}
  .navbar__account{justify-content:center;margin:6px 0 0}
}

/* buttons, cards */
.btn{display:inline-block;padding:8px 26px;border:3px solid var(--ink);border-radius:999px;background:#fff;color:var(--ink);font:inherit;font-weight:800;text-decoration:none;cursor:pointer;box-shadow:0 5px 0 var(--ink);transition:transform .1s,box-shadow .1s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(4px);box-shadow:0 1px 0 var(--ink)}
.btn--pink{background:var(--pink);color:#fff}
.btn--sky{background:var(--sky)}
.btn--green{background:var(--grass)}
.btn--small{padding:2px 16px;font-size:1rem;box-shadow:0 3px 0 var(--ink)}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.card{background:#fff;border:var(--line);border-radius:28px;box-shadow:var(--shadow);padding:22px}
.page-head{margin-bottom:24px}
.page-head__title{font-size:clamp(2rem,6vw,3rem);line-height:1.1;font-weight:800}

/* hero */
.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:center;margin-bottom:44px}
.hero__title{font-size:clamp(2.5rem,7vw,4.4rem);line-height:1;font-weight:800;margin-bottom:14px}
.hero__desc{max-width:34ch;margin-bottom:22px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px}
.hero__progress{margin-top:22px;font-weight:800}
.hero__art{position:relative;display:grid;place-items:center;width:100%;max-width:400px;aspect-ratio:1;margin:auto}
.hero__wreath{position:absolute;inset:0;width:100%;height:100%;animation:breathe 4s ease-in-out infinite}
.hero__disc{position:absolute;top:19%;left:19%;width:62%;aspect-ratio:1;background:var(--sun);border:var(--line);border-radius:50%;box-shadow:var(--shadow)}
.hero__mascot{position:relative;font-size:min(26vw,7.5rem);animation:bounce 1.6s ease-in-out infinite}
@keyframes breathe{50%{transform:scale(1.035)}}
.hero__deco{position:absolute;font-size:2.6rem}
.hero__deco--1{top:2%;left:8%}
.hero__deco--2{top:8%;right:0}
.hero__deco--3{bottom:4%;left:0}
@keyframes bounce{50%{transform:translateY(-16px) rotate(-4deg)}}
@media(max-width:720px){.hero{grid-template-columns:1fr;text-align:center}.hero__desc{margin-inline:auto}.hero__actions{justify-content:center}}

/* features */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
.feature{display:block;text-align:center;text-decoration:none;transition:transform .15s}
.feature:hover{transform:rotate(-2deg) translateY(-4px)}
.feature--pink{background:var(--pink)}
.feature--sky{background:var(--sky)}
.feature--green{background:var(--grass)}
.feature__icon{font-size:4rem}
.feature__name{font-size:1.7rem;font-weight:800}

/* lessons */
.course{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;align-items:start}
.course__main{display:grid;gap:22px;min-width:0}
.course__side{position:sticky;top:90px;max-height:calc(100vh - 110px);overflow:auto}
.course__title{margin-bottom:12px;font-size:1.5rem;font-weight:800}
.course__reset{margin-top:8px;text-align:center}
@media(max-width:900px){.course{grid-template-columns:1fr}.course__side{position:static;order:-1;max-height:320px}}
.player__title{margin-bottom:12px;font-size:1.8rem;line-height:1.1}
.player__video{display:block;width:100%;aspect-ratio:16/9;background:#000;border:var(--line);border-radius:20px}
.lessons__item{margin-bottom:12px;overflow:hidden;background:#fff;border:3px solid var(--ink);border-radius:20px}
.lessons__item--done{background:#d8f8e1}
.lessons__item--locked{color:#6d6390;background:#d9d4e6}
.lessons__item--active{box-shadow:0 0 0 4px var(--pink)}
.lessons__head{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;font:inherit;font-weight:800;color:inherit;text-align:left;background:none;border:0;cursor:pointer}
.lessons__head[disabled]{cursor:not-allowed}
.lessons__icon{font-size:1.8rem}
.lessons__name{flex:1;line-height:1.2}
.lessons__subs{display:grid;gap:6px;padding:0 12px 12px}
.lessons__sub{padding:4px 14px;font:inherit;color:inherit;text-align:left;background:#fff;border:3px solid var(--ink);border-radius:999px;cursor:pointer}
.lessons__sub:hover{background:var(--sun)}
.lessons__sub--done{background:var(--grass)}
.lessons__sub--active{background:var(--sky)}
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tabs__tab{flex:1;padding:8px 14px;font:inherit;font-weight:800;color:var(--ink);background:#fff;border:3px solid var(--ink);border-radius:999px;box-shadow:0 4px 0 var(--ink);cursor:pointer}
.tabs__tab--active{color:#fff;background:var(--pink)}
.pic{font-size:4.5rem;line-height:1.2;text-align:center}
.ask{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px;margin:6px 0 18px;font-size:1.5rem;font-weight:800;text-align:center}
.answers{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:14px}
.answer{padding:14px 8px;font:inherit;color:inherit;text-align:center;background:#fff;border:var(--line);border-radius:22px;box-shadow:4px 4px 0 var(--ink);cursor:pointer}
.answer:hover:not([disabled]){background:var(--sun)}
.answer__img{display:block;font-size:4rem;line-height:1.1}
.answer__label{display:block;font-weight:800}
.answer--right,.answer--right:hover{background:var(--grass)!important}
.answer--wrong{background:#ff8a8a!important;animation:shake .4s}
@keyframes shake{25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
.result{min-height:1.6em;margin-top:18px;text-align:center;font-size:1.4rem;font-weight:800}
.result--big{font-size:2rem}
.track{position:relative;height:84px;margin-bottom:18px;background:var(--ink) repeating-linear-gradient(90deg,#fff 0 24px,transparent 24px 48px) 0 50%/100% 4px no-repeat;border:var(--line);border-radius:20px}
.track__car{position:absolute;top:50%;left:0;width:4rem;font-size:3rem;line-height:1;text-align:center;transform:translateY(-50%);transition:left .8s ease}
.track__car--flip{transform:translateY(-50%) scaleX(-1)}
.track__goal{position:absolute;top:50%;right:.5rem;font-size:2.6rem;line-height:1;transform:translateY(-50%)}
.lock{text-align:center}
.lock__icon{font-size:3.5rem}
.lock .btn{margin-top:12px}
.player__seen{margin-top:14px;text-align:center}
.lessons__sub[disabled],.tabs__tab[disabled]{opacity:.5;cursor:not-allowed}

/* songs */
.songs{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.song:nth-child(4n+1){background:#ffe3ef}
.song:nth-child(4n+2){background:#d9f2ff}
.song:nth-child(4n+3){background:#fff3b8}
.song:nth-child(4n+4){background:#d8f8e1}
.song__icon{font-size:3.4rem}
.song__name{font-size:1.6rem;line-height:1.1}
.song__lyrics{margin:8px 0 14px;white-space:pre-line}
.song__audio{width:100%}

/* about */
.about__intro{display:flex;align-items:center;gap:20px;margin-bottom:24px;background:var(--sun)}
.about__mascot{font-size:5rem}
.about__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px;margin-bottom:24px}
.about__item{text-align:center}
.about__item--pink{background:var(--pink)}
.about__item--sky{background:var(--sky)}
.about__item--green{background:var(--grass)}
.about__icon{font-size:3.4rem}
.about__name{font-size:1.5rem;line-height:1.1;margin-bottom:6px}
@media(max-width:560px){.about__intro{flex-direction:column;text-align:center}}

/* modal */
.modal{margin:auto;width:min(92vw,480px);padding:26px;color:var(--ink);background:#fff;border:var(--line);border-radius:28px;box-shadow:var(--shadow)}
.modal::backdrop{background:rgba(43,27,90,.55)}
.modal__form{display:grid;gap:14px;text-align:center}
.modal__title{font-size:1.7rem;line-height:1.1}
.modal__input{padding:10px 16px;font:inherit;font-size:1.3rem;text-align:center;border:3px solid var(--ink);border-radius:16px}
.modal__avatars{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}
.avatar{position:relative}
.avatar__input{position:absolute;opacity:0}
.avatar__face{display:grid;place-items:center;width:56px;height:56px;font-size:2rem;background:#fff;border:3px solid var(--ink);border-radius:50%;cursor:pointer}
.avatar__input:checked+.avatar__face{background:var(--pink);transform:scale(1.15)}
.avatar__input:focus-visible+.avatar__face{outline:4px dashed var(--pink);outline-offset:3px}

/* footer */
.footer{position:relative;z-index:1;padding: 10px;color:#fff;font-weight:700;text-align:center;background:var(--grape);border-top:var(--line)}

/* scenery */
.scenery{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.scenery__item{position:absolute;line-height:1}
.scenery__item--sun{top:90px;left:3vw;font-size:4.5rem;animation:spin 24s linear infinite}
.scenery__item--cloud1{top:20%;left:0;font-size:5rem;animation:drift 55s linear infinite}
.scenery__item--cloud2{top:48%;left:0;font-size:3.6rem;opacity:.85;animation:drift 80s linear -30s infinite}
.scenery__item--balloon{top:30%;right:4vw;font-size:3.6rem;animation:float 4.5s ease-in-out infinite alternate}
.scenery__item--fly1{top:52%;left:5vw;font-size:2.6rem;animation:flutter 6s ease-in-out infinite alternate}
.scenery__item--fly2{top:62%;right:6vw;font-size:2.6rem;animation:flutter 7s ease-in-out -2s infinite alternate}
.scenery__item--star{top:44%;left:3vw;font-size:2.4rem;animation:twinkle 2s ease-in-out infinite alternate}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes drift{from{transform:translateX(-12vw)}to{transform:translateX(112vw)}}
@keyframes float{from{transform:translateY(-14px) rotate(-6deg)}to{transform:translateY(14px) rotate(6deg)}}
@keyframes flutter{0%{transform:translate(0,0) rotate(-10deg)}50%{transform:translate(24px,-30px) rotate(10deg)}100%{transform:translate(-10px,-60px) rotate(-6deg)}}
@keyframes twinkle{from{opacity:.6;transform:scale(.8) rotate(-10deg)}to{opacity:1;transform:scale(1.15) rotate(10deg)}}
.garden{position:absolute;right:0;bottom:100%;left:0;pointer-events:none}
.garden__row{display:flex;justify-content:space-between;padding:0 4px;overflow:hidden;font-size:1.9rem;line-height:1;background:linear-gradient(transparent 55%,#2fbf5c 55%)}
.garden__blade{display:inline-block;transform-origin:50% 100%;animation:sway 2.8s ease-in-out infinite alternate}
.garden__tree{position:absolute;bottom:1.3rem;line-height:1;transform-origin:50% 100%;animation:sway 4s ease-in-out infinite alternate}
.garden__tree--left{left:1vw;font-size:clamp(4rem,7vw,8rem)}
.garden__tree--left2{left:calc(1vw + clamp(4rem,7vw,8rem));font-size:3.4rem;animation-delay:-1.2s}
.garden__tree--right{right:1vw;font-size:clamp(4rem,7vw,8rem);animation-delay:-2s}
.garden__tree--right2{right:calc(1vw + clamp(4rem,7vw,8rem));font-size:3.4rem;animation-delay:-.6s}
@keyframes sway{from{transform:rotate(-8deg)}to{transform:rotate(8deg)}}
@media(max-width:1200px){.scenery__item--sun,.scenery__item--balloon,.scenery__item--fly1,.scenery__item--fly2,.scenery__item--star,.garden__tree{display:none}}
@media(max-width:700px){.garden__blade:nth-child(n+13){display:none}}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}