:root{--bg: #fff9f0;--bg2: #ffffff;--ink: #231f45;--muted: #6a6590;--line: #ece4f5;--brand: #6c4cff;--brand2: #ff5fa2;--good: #19b37a;--bad: #f0564a;--warn: #ffb020;--shadow: 0 10px 30px -12px rgba(76, 49, 168, .28);--radius: 22px;--c-math: #ff7a59;--c-english: #7c5cff;--c-science: #17c3a3;--c-social: #2f9bff;--c-life: #ff5fa2;--font: "Nunito", ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--head: "Baloo 2", "Nunito", ui-rounded, system-ui, sans-serif}:root[data-theme=dark]{--bg: #14122b;--bg2: #1f1c3d;--ink: #f2efff;--muted: #a9a3d6;--line: #322e5a;--shadow: 0 10px 30px -12px rgba(0, 0, 0, .6)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #14122b;--bg2: #1f1c3d;--ink: #f2efff;--muted: #a9a3d6;--line: #322e5a;--shadow: 0 10px 30px -12px rgba(0, 0, 0, .6)}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}img,svg{max-width:100%}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}h1,h2,h3{font-family:var(--head);line-height:1.15;margin:0 0 .4em}.wrap{width:min(1180px,100% - 32px);margin-inline:auto}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.top{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid var(--line)}.top .wrap{display:flex;align-items:center;gap:14px;height:66px}.logo{display:flex;align-items:center;gap:10px;font-family:var(--head);font-weight:800;font-size:1.35rem}.logo i{display:grid;place-items:center;width:40px;height:40px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--brand2));font-style:normal;box-shadow:var(--shadow);animation:wob 5s ease-in-out infinite}.nav{margin-left:auto;display:flex;align-items:center;gap:4px}.nav a,.nav button{padding:8px 14px;border-radius:999px;font-weight:700;background:none;border:0;color:var(--ink)}.nav a:hover,.nav button:hover{background:color-mix(in srgb,var(--brand) 12%,transparent)}.nav a.on{background:var(--brand);color:#fff}@media(max-width:640px){.nav a:not(.on):not(.keep){display:none}}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;border:0;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--brand),#9b6bff);box-shadow:0 8px 20px -8px var(--brand);transition:transform .15s,box-shadow .15s}.btn:hover{transform:translateY(-2px) scale(1.02)}.btn:active{transform:scale(.97)}.btn.alt{background:var(--bg2);color:var(--ink);box-shadow:inset 0 0 0 2px var(--line)}.btn.sm{padding:8px 16px;font-size:.92rem}.btn.good{background:linear-gradient(135deg,#19b37a,#5ad6a0)}.hero{position:relative;margin:22px auto 0;width:min(1180px,100% - 32px);border-radius:36px;overflow:hidden;min-height:460px;box-shadow:var(--shadow);isolation:isolate}.slide{position:absolute;inset:0;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:20px;padding:clamp(24px,5vw,64px);opacity:0;visibility:hidden;transition:opacity .8s ease,visibility .8s;color:#fff}.slide.on{opacity:1;visibility:visible;z-index:2}.slide h1{font-size:clamp(2rem,5vw,3.6rem);font-weight:800;text-wrap:balance}.slide p{font-size:clamp(1rem,1.6vw,1.25rem);max-width:34ch;opacity:.95}.slide .art{position:relative;height:100%;min-height:240px}.slide .art b{position:absolute;font-size:var(--s, 64px);left:var(--x);top:var(--y);animation:float var(--d, 5s) ease-in-out infinite;animation-delay:var(--dl, 0s);filter:drop-shadow(0 10px 14px rgba(0,0,0,.25));font-weight:400}.slide.on h1,.slide.on p,.slide.on .btn{animation:rise .8s both}.slide.on p{animation-delay:.12s}.slide.on .btn{animation-delay:.24s}.slide .btn{background:#fff;color:#231f45;box-shadow:0 10px 24px -8px #00000059;margin:6px 8px 0 0}.slide .btn.ghost{background:#fff3;color:#fff;box-shadow:inset 0 0 0 2px #fff9}.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;background:#ffffff21;z-index:1;pointer-events:none}.hero:before{width:420px;height:420px;right:-90px;top:-120px;animation:drift 14s ease-in-out infinite}.hero:after{width:260px;height:260px;left:-70px;bottom:-90px;animation:drift 11s ease-in-out infinite reverse}.dots{position:absolute;z-index:5;bottom:18px;left:50%;translate:-50% 0;display:flex;gap:8px}.dots button{width:12px;height:12px;padding:0;border-radius:99px;border:0;background:#ffffff80;transition:width .3s,background .3s}.dots button.on{width:36px;background:#fff}.arrow{position:absolute;z-index:5;top:50%;translate:0 -50%;width:46px;height:46px;border-radius:50%;border:0;background:#ffffff40;color:#fff;font-size:1.4rem;backdrop-filter:blur(6px)}.arrow:hover{background:#ffffff73}.arrow.l{left:14px}.arrow.r{right:14px}.bar{position:absolute;z-index:5;left:0;bottom:0;height:5px;background:#ffffffd9;width:0}@media(max-width:760px){.slide{grid-template-columns:1fr;padding-bottom:70px}.slide .art{display:none}.hero{min-height:420px}.arrow{display:none}}section.blk{padding:56px 0 8px}.sec-h{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:22px;flex-wrap:wrap}.sec-h h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:0}.sec-h p{margin:4px 0 0;color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-top:22px}.stat{background:var(--bg2);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);text-align:center}.stat b{display:block;font-family:var(--head);font-size:2.2rem;color:var(--brand)}.stat span{color:var(--muted);font-weight:700;font-size:.9rem}.subjects{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px}.subj{position:relative;overflow:hidden;padding:24px;border-radius:28px;color:#fff;background:var(--c);box-shadow:var(--shadow);transition:transform .25s;min-height:190px;display:flex;flex-direction:column;justify-content:flex-end}.subj:hover{transform:translateY(-6px) rotate(-.6deg)}.subj .em{position:absolute;right:14px;top:6px;font-size:5.4rem;opacity:.95;transition:transform .4s;filter:drop-shadow(0 8px 10px rgba(0,0,0,.2))}.subj:hover .em{transform:scale(1.18) rotate(8deg)}.subj h3{font-size:1.6rem;margin:0}.subj p{margin:2px 0 8px;opacity:.92;font-size:.95rem}.subj small{font-weight:800;background:#ffffff40;padding:3px 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var(--brand)) 15%,transparent);color:var(--ink)}.stars{position:absolute;top:14px;right:14px;font-size:.85rem;letter-spacing:1px}.how{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}.how div{background:var(--bg2);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.how i{font-style:normal;font-size:2.4rem;display:block;margin-bottom:6px}.cta{margin:64px auto 0;padding:44px;border-radius:34px;text-align:center;color:#fff;background:linear-gradient(120deg,var(--brand),var(--brand2));box-shadow:var(--shadow)}.cta h2{font-size:2.2rem}footer{margin-top:64px;padding:32px 0 44px;color:var(--muted);text-align:center;font-size:.92rem;border-top:1px solid var(--line)}.tools{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:22px 0}.search{flex:1 1 260px;display:flex;align-items:center;gap:8px;padding:0 16px;border-radius:999px;background:var(--bg2);box-shadow:var(--shadow);border:2px solid 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60%);border-radius:22px;padding:16px;overflow:hidden}.ctrls{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;align-items:center}.ctrls label{display:flex;align-items:center;gap:8px;font-weight:800}input[type=range]{accent-color:var(--brand);width:150px}.eq{font-family:var(--head);font-size:clamp(1.8rem,5vw,3rem);font-weight:800}.eq em{font-style:normal;color:var(--brand)}.eq u{text-decoration:none;color:var(--good)}.items{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;max-width:100%;font-size:2rem}.items span,.pop{display:inline-block;animation:pop .5s cubic-bezier(.3,1.6,.5,1) both}.grp span{font-size:1.7rem}.grp{display:flex;flex-wrap:wrap;gap:4px;justify-content:center;padding:10px;border-radius:18px;border:3px dashed color-mix(in srgb,var(--c) 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button.done{background:var(--good);color:#fff;border-color:var(--good);pointer-events:none;opacity:.7}.match button.wrong{animation:shake .4s;border-color:var(--bad)}.dotsrow{display:flex;gap:6px}.dotsrow i{width:9px;height:9px;border-radius:50%;background:var(--line)}.dotsrow i.on{background:var(--c);transform:scale(1.4)}.steps{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;align-items:center}.step{display:flex;flex-direction:column;align-items:center;gap:4px;width:120px;padding:14px 8px;border-radius:20px;border:3px solid var(--line);background:var(--bg2);font-weight:800;font-size:.88rem;transition:transform .35s,border-color .35s,background .35s;opacity:.55}.step b{font-size:2.2rem;font-weight:400}.step.on{opacity:1;transform:scale(1.12);border-color:var(--c);background:color-mix(in srgb,var(--c) 14%,var(--bg2));box-shadow:var(--shadow)}.step.past{opacity:1;border-color:var(--good)}.sarrow{font-size:1.5rem;color:var(--muted)}svg text{font-family:var(--head)}.clock-time{font-family:var(--head);font-size:2.6rem;font-weight:800;background:#231f45;color:#8dffcf;padding:2px 22px;border-radius:16px;letter-spacing:3px}.q-top{display:flex;justify-content:space-between;font-weight:800;color:var(--muted)}.q-bar{height:10px;border-radius:9px;background:var(--line);overflow:hidden;margin:8px 0 18px}.q-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:width .4s}.q-text{font-family:var(--head);font-size:1.35rem;font-weight:700;margin-bottom:14px;overflow-wrap:anywhere}.opts{display:grid;gap:10px}.opt{text-align:left;padding:13px 16px;border-radius:16px;border:2px solid var(--line);background:var(--bg);color:var(--ink);font-weight:800;transition:transform .12s,border-color .12s}.opt:hover:not(:disabled){transform:translate(4px);border-color:var(--brand)}.opt.right{background:var(--good);border-color:var(--good);color:#fff;animation:pop .4s}.opt.wrong{background:var(--bad);border-color:var(--bad);color:#fff;animation:shake .4s}.result{text-align:center}.result .stars-big{font-size:3rem;letter-spacing:6px}.result .stars-big span{display:inline-block;animation:pop .6s both}.nextprev{display:flex;justify-content:space-between;gap:12px;margin:26px 0 0;flex-wrap:wrap}.nextprev a{flex:1 1 240px;padding:16px 20px;border-radius:22px;background:var(--bg2);box-shadow:var(--shadow);font-weight:800;transition:transform .2s}.nextprev a:hover{transform:translateY(-3px)}.nextprev a small{display:block;color:var(--muted)}.nextprev a.nx{text-align:right}.related{display:flex;flex-wrap:wrap;gap:8px}.related a{padding:8px 14px;border-radius:99px;background:color-mix(in srgb,var(--c) 14%,transparent);font-weight:800;font-size:.92rem}.related a:hover{background:var(--c);color:#fff}.confetti{position:fixed;inset:0;pointer-events:none;z-index:99;overflow:hidden}.confetti i{position:absolute;top:-20px;width:10px;height:16px;border-radius:3px;animation:fall linear forwards}@keyframes pop{0%{transform:scale(0) rotate(-20deg);opacity:0}to{transform:scale(1) rotate(0);opacity:1}}@keyframes rise{0%{transform:translateY(24px);opacity:0}to{transform:none;opacity:1}}@keyframes float{0%,to{transform:translateY(0) rotate(-4deg)}50%{transform:translateY(-22px) rotate(5deg)}}@keyframes wob{0%,to{transform:rotate(-4deg)}50%{transform:rotate(5deg) scale(1.05)}}@keyframes drift{0%,to{transform:translate(0)}50%{transform:translate(-30px,24px)}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}75%{transform:translate(8px)}}@keyframes fall{to{transform:translateY(110vh) rotate(720deg)}}@keyframes bounce{0%,to{transform:translateY(0)}40%{transform:translateY(-22px)}}@keyframes away{to{transform:translate(60px,-90px) rotate(40deg) scale(0);opacity:0}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes glow{0%,to{filter:drop-shadow(0 0 0 var(--c))}50%{filter:drop-shadow(0 0 14px var(--c))}}@media(prefers-reduced-motion:reduce){*,:before,:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.legal{margin:10px 0 0;font-size:.85rem}.legal a{color:var(--brand);font-weight:800}.legal-page h2{margin:22px 0 6px;font-size:1.2rem}.legal-page p{line-height:1.6}