*{box-sizing:border-box} :root{color-scheme:dark;--ink:#f8f9ff;--muted:#b7bed9;--panel:rgba(20,25,58,.78)}
html{min-height:100%;background:#090b20} body{min-height:100vh;margin:0;color:var(--ink);font-family:Inter,ui-rounded,"Arial Rounded MT Bold",system-ui,sans-serif;background:radial-gradient(circle at 15% 12%,#203c79 0,transparent 31%),radial-gradient(circle at 90% 75%,#49226b 0,transparent 34%),linear-gradient(150deg,#07091d,#11152f 55%,#090b20);overflow-x:hidden}
body:before,body:after,.stars{content:"";position:fixed;inset:0;pointer-events:none}.stars{opacity:.36;background-image:radial-gradient(#fff 1px,transparent 1px),radial-gradient(#fff 1px,transparent 1px);background-position:0 0,40px 55px;background-size:82px 82px,110px 110px}.shell{position:relative;width:min(1120px,calc(100% - 34px));margin:auto;padding:clamp(54px,9vw,100px) 0 34px}header{text-align:center;margin-bottom:clamp(35px,6vw,60px)}.badge{display:inline-flex;padding:8px 14px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.08);font-size:.78rem;font-weight:900;letter-spacing:.16em;color:#f9d94c}h1{font-size:clamp(3.6rem,11vw,7.4rem);line-height:.84;margin:18px 0 20px;letter-spacing:-.075em;text-shadow:0 10px 45px rgba(0,0,0,.35)}h1 span{color:#68edff}header p{margin:0;color:var(--muted);font-size:clamp(1.05rem,2vw,1.3rem);font-weight:700}.app-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.app-card{position:relative;isolation:isolate;min-height:410px;display:flex;flex-direction:column;align-items:flex-start;padding:38px;border:1px solid rgba(255,255,255,.17);border-radius:30px;color:inherit;text-decoration:none;background:var(--panel);box-shadow:0 30px 80px rgba(0,0,0,.34);overflow:hidden;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.app-card:hover,.app-card:focus-visible{transform:translateY(-7px) rotate(-.35deg);border-color:rgba(255,255,255,.5);box-shadow:0 40px 90px rgba(0,0,0,.44)}.app-card:focus-visible{outline:4px solid #fff;outline-offset:5px}.card-glow{position:absolute;z-index:-1;width:320px;height:320px;right:-110px;top:-110px;border-radius:50%;filter:blur(5px);opacity:.48}.maths .card-glow{background:#2de2e6}.sprites .card-glow{background:#bf5aff}.icon{display:grid;place-items:center;width:82px;height:82px;margin-bottom:40px;border-radius:24px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.23);font-size:3.4rem;font-weight:900;box-shadow:inset 0 0 25px rgba(255,255,255,.08)}.tag{font-size:.73rem;font-weight:900;letter-spacing:.16em;color:#f9d94c}.app-card h2{font-size:clamp(2rem,4vw,3rem);line-height:1;margin:10px 0 15px;letter-spacing:-.045em}.app-card p{max-width:430px;margin:0 0 30px;color:var(--muted);font-size:1.05rem;line-height:1.6}.launch{margin-top:auto;font-size:.88rem;font-weight:1000;letter-spacing:.11em}.launch b{display:inline-grid;place-items:center;width:32px;height:32px;margin-left:9px;border-radius:50%;background:#fff;color:#0b1027;font-size:1.2rem}footer{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;padding:34px 10px 0;color:#8890b3;font-size:.88rem}.widget-link{display:inline-flex;padding:11px 16px;border:1px solid rgba(255,255,255,.2);border-radius:999px;color:#dffaff;background:rgba(255,255,255,.08);font-weight:900;text-decoration:none}.widget-link:hover,.widget-link:focus-visible{color:#091027;background:#68edff}.widget-link:focus-visible{outline:3px solid #fff;outline-offset:4px}.hub-account{position:absolute;right:0;top:-38px;display:flex;align-items:center;gap:10px;color:#b7bed9;font-size:.82rem}.hub-account button{padding:7px 11px;border:1px solid rgba(255,255,255,.2);border-radius:999px;color:#fff;background:rgba(255,255,255,.08);font-weight:800;cursor:pointer}.hub-account button:hover,.hub-account button:focus-visible{background:#fff;color:#101632}.hub-login-page{display:grid;place-items:center}.login-shell{position:relative;width:min(460px,calc(100% - 32px));padding:34px 0}.hub-login-card{padding:clamp(28px,7vw,46px);border:1px solid rgba(255,255,255,.18);border-radius:30px;background:rgba(18,23,53,.86);box-shadow:0 35px 100px rgba(0,0,0,.45)}.hub-login-card h1{font-size:clamp(2.6rem,11vw,4.1rem);line-height:.92;margin:20px 0}.hub-login-card>p{color:#b7bed9;font-weight:700}.hub-login-card form{display:grid;gap:15px;margin-top:25px}.hub-login-card label{display:grid;gap:7px;color:#dfe5ff;font-size:.78rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.hub-login-card input{width:100%;padding:15px;border:1px solid rgba(255,255,255,.2);border-radius:14px;color:#fff;background:#080b20;font:700 1rem system-ui}.hub-login-card input:focus{outline:3px solid #68edff;outline-offset:2px}.hub-login-button{padding:16px;border:0;border-radius:15px;background:linear-gradient(100deg,#f9d94c,#68edff);color:#091027;font:1000 .95rem system-ui;letter-spacing:.07em;cursor:pointer}.hub-login-button:disabled{opacity:.6}.login-error{min-height:22px!important;margin:0!important;color:#ff9da8!important}
@media(max-width:720px){.shell{padding-top:45px}.app-grid{grid-template-columns:1fr}.app-card{min-height:350px;padding:30px}.icon{margin-bottom:26px;width:70px;height:70px;font-size:2.8rem}h1{font-size:4.6rem}}@media(prefers-reduced-motion:reduce){.app-card{transition:none}}