:root{--indigo:#2b2a6b;--indigo2:#403f94;--coral:#ff6b57;--sun:#ffc93c;--teal:#17a89a;--sky:#e8f4ff;--cream:#fff9ef;--ink:#23224d;--muted:#5e5d80;--line:#ece6d8;--white:#fff;--r:20px;--shadow:0 10px 30px rgba(43,42,107,.12)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Nunito',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--cream);line-height:1.65;font-size:17px}
h1,h2,h3,h4{font-family:'Fredoka','Nunito',sans-serif;line-height:1.2;margin:0 0 .5em;color:var(--indigo);font-weight:600}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}h2{font-size:clamp(1.7rem,3.4vw,2.4rem)}h3{font-size:1.25rem}
p{margin:0 0 1em}a{color:var(--indigo2)}img,svg{max-width:100%}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:var(--indigo);color:#fff;padding:10px 14px;z-index:99}.skip:focus{left:10px;top:10px}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,249,239,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:'Fredoka',sans-serif;font-size:1.7rem;color:var(--indigo);font-weight:700}
.brand img{height:40px;width:auto}
.menu{display:flex;gap:6px;align-items:center;list-style:none;margin:0;padding:0}
.menu a{display:block;padding:8px 14px;border-radius:99px;text-decoration:none;color:var(--ink);font-weight:700;font-size:.97rem}
.menu a:hover,.menu a.active{background:var(--sun);color:var(--indigo)}
.menu a.cta{background:var(--coral);color:#fff}.menu a.cta:hover{background:#e9533f}
.burger{display:none;background:none;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:26px;height:3px;background:var(--indigo);margin:5px 0;border-radius:3px}
@media(max-width:860px){.burger{display:block}.menu{position:absolute;left:0;right:0;top:72px;background:var(--cream);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px 20px 20px;display:none}.menu.open{display:flex}.menu a{padding:12px 14px}}
/* buttons */
.btn{display:inline-block;padding:14px 26px;border-radius:99px;font-weight:800;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:1rem;font-family:inherit;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-primary{background:var(--coral);color:#fff}.btn-ghost{background:transparent;border-color:var(--indigo);color:var(--indigo)}
.btn-sun{background:var(--sun);color:var(--indigo)}
/* hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,var(--sky),var(--cream) 60%);padding:70px 0 90px}
.hero .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.eyebrow{display:inline-block;background:var(--sun);color:var(--indigo);font-weight:800;padding:6px 14px;border-radius:99px;font-size:.85rem;letter-spacing:.04em;text-transform:uppercase;margin-bottom:16px}
.hero p.lead{font-size:1.2rem;color:var(--muted);max-width:560px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}
.hero-art{display:flex;justify-content:center}
.hero-art svg{width:100%;max-width:440px;filter:drop-shadow(0 18px 24px rgba(43,42,107,.18))}
.float{animation:float 5s ease-in-out infinite}.float.d2{animation-delay:-2s}.float.d3{animation-delay:-3.5s}
@keyframes float{50%{transform:translateY(-12px)}}
@media(max-width:860px){.hero .grid{grid-template-columns:1fr}.hero-art{order:-1}.hero{padding:40px 0 60px}}
@media(prefers-reduced-motion:reduce){.float{animation:none}html{scroll-behavior:auto}}
/* sections */
section{padding:72px 0}.alt{background:var(--white)}.tint{background:var(--sky)}
.center{text-align:center}.sub{color:var(--muted);max-width:640px;margin:0 auto 40px;font-size:1.08rem}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px}
.card{background:var(--white);border-radius:var(--r);padding:28px;box-shadow:var(--shadow);border:1px solid var(--line)}
.alt .card{background:var(--cream)}
.icon{width:62px;height:62px;border-radius:18px;display:grid;place-items:center;font-size:1.9rem;margin-bottom:14px;font-family:'Fredoka',sans-serif;font-weight:700;color:#fff}
.i-coral{background:var(--coral)}.i-teal{background:var(--teal)}.i-indigo{background:var(--indigo2)}.i-sun{background:var(--sun);color:var(--indigo)}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px}
.step{position:relative;padding:28px 24px 24px;background:var(--white);border-radius:var(--r);border:1px dashed var(--indigo2)}
.step:before{counter-increment:s;content:counter(s);position:absolute;top:-18px;left:20px;width:38px;height:38px;border-radius:50%;background:var(--coral);color:#fff;font-family:'Fredoka';font-weight:700;display:grid;place-items:center}
.band{background:var(--indigo);color:#fff;border-radius:28px;padding:48px 36px;text-align:center}
.band h2,.band h3{color:#fff}.band p{color:#dcdcf5}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:18px;margin-top:24px}
.stat b{display:block;font-family:'Fredoka';font-size:2.2rem;color:var(--sun)}
.pill{display:inline-block;padding:4px 12px;border-radius:99px;font-size:.78rem;font-weight:800;margin-right:6px}
.p-math{background:#ffe3df;color:#b8321f}.p-eng{background:#ddf5f2;color:#0d6f65}.p-sci{background:#e4e3fb;color:#2f2e8a}.p-age{background:#fff0c4;color:#7a5a00}
/* products */
.filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:32px}
.chip{border:2px solid var(--indigo);background:transparent;color:var(--indigo);padding:8px 18px;border-radius:99px;font-weight:800;cursor:pointer;font-family:inherit;font-size:.95rem}
.chip.on{background:var(--indigo);color:#fff}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.prod{background:var(--white);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);display:flex;flex-direction:column}
.prod .art{height:170px;display:grid;place-items:center}
.prod .art svg{width:120px;height:120px}
.prod .body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.prod h3{margin-bottom:6px}.prod p{color:var(--muted);font-size:.96rem;flex:1}
.prod .tag{font-size:.8rem;font-weight:800;color:var(--teal);margin-bottom:10px}
.bg-math{background:#ffe9e5}.bg-eng{background:#e1f6f3}.bg-sci{background:#e9e8fc}
.hidden{display:none!important}
/* safety list */
.checks{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.checks li{padding-left:36px;position:relative}
.checks li:before{content:"✓";position:absolute;left:0;top:2px;width:26px;height:26px;border-radius:50%;background:var(--teal);color:#fff;display:grid;place-items:center;font-weight:800;font-size:.9rem}
.two{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
@media(max-width:860px){.two{grid-template-columns:1fr}}
/* forms */
form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:600px){form .row{grid-template-columns:1fr}}
label{display:block;font-weight:800;margin:0 0 6px;font-size:.93rem}
input,select,textarea{width:100%;padding:13px 15px;border:2px solid var(--line);border-radius:14px;font:inherit;background:#fff;color:var(--ink);margin-bottom:16px}
input:focus,select:focus,textarea:focus{outline:3px solid var(--sun);border-color:var(--indigo2)}
textarea{min-height:140px;resize:vertical}
.hp{position:absolute;left:-9999px}
.notice{padding:14px 18px;border-radius:14px;margin-bottom:20px;font-weight:700}
.ok{background:#dcf5ee;color:#0d6f65}.err{background:#ffe3df;color:#b8321f}
/* page header */
.pagehead{background:linear-gradient(160deg,var(--sky),var(--cream));padding:56px 0 44px;text-align:center}
.pagehead p{color:var(--muted);max-width:640px;margin:0 auto;font-size:1.1rem}
.prose{max-width:780px;margin:0 auto}.prose h2{margin-top:1.6em;font-size:1.5rem}.prose ul{padding-left:22px}
/* footer */
.site-footer{background:var(--indigo);color:#d6d6f3;padding:56px 0 24px}
.site-footer h4{color:#fff;font-size:1.05rem}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:30px}
@media(max-width:860px){.fgrid{grid-template-columns:1fr 1fr}}@media(max-width:520px){.fgrid{grid-template-columns:1fr}}
.site-footer a{color:#d6d6f3;text-decoration:none}.site-footer a:hover{color:var(--sun)}
.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin-bottom:8px}
.legal{border-top:1px solid rgba(255,255,255,.18);margin-top:34px;padding-top:18px;font-size:.88rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.faq details{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:16px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:800;color:var(--indigo)}
.faq p{margin:10px 0 0;color:var(--muted)}