*{box-sizing:border-box} :root{--bg:#f6f7fb;--surface:#fff;--ink:#152033;--muted:#687086;--line:#e7e9f2;--brand:#6557ff;--brand2:#20b8a5;--hot:#ff7a59;--shadow:0 18px 55px rgba(32,39,66,.10)}
html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;background:radial-gradient(circle at top right,#eceaff 0,transparent 30%),var(--bg);color:var(--ink)}
a{text-decoration:none;color:inherit}button,input,select{font:inherit}.site-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;padding:14px max(4vw,20px);background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(231,233,242,.9)}
.logo{display:flex;align-items:center;gap:11px}.logo-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:15px;color:#fff;font-weight:900;font-size:22px;background:linear-gradient(135deg,var(--brand),#8b5cf6);box-shadow:0 10px 25px rgba(101,87,255,.3)}.logo strong{display:block;font-size:19px}.logo small{display:block;color:var(--muted)}
.nav{display:flex;gap:8px}.nav a{padding:9px 12px;border-radius:11px;color:var(--muted)}.nav a:hover{background:#f0efff;color:var(--brand)}
main{width:min(1240px,92%);margin:auto}.hero{display:grid;grid-template-columns:1.45fr .55fr;gap:24px;align-items:center;margin:34px 0;padding:clamp(30px,6vw,72px);border-radius:34px;background:linear-gradient(135deg,#171b3a,#4f46e5 55%,#6d5dfc);color:#fff;overflow:hidden;position:relative;box-shadow:var(--shadow)}
.hero:after{content:"";position:absolute;width:330px;height:330px;border-radius:50%;right:-80px;top:-100px;background:rgba(255,255,255,.10)}.eyebrow{display:inline-flex;padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.14);font-size:12px;font-weight:800;letter-spacing:.08em}.hero h1{font-size:clamp(38px,6vw,72px);line-height:.98;margin:17px 0}.hero p{font-size:18px;line-height:1.65;max-width:720px;opacity:.88}.hero-number{position:relative;z-index:1;text-align:center;padding:32px 20px;border-radius:26px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2)}.hero-number strong{display:block;font-size:58px}.hero-number span{opacity:.8}
.section-head{display:flex;justify-content:space-between;align-items:end;margin:34px 0 17px}.section-head h2{font-size:30px;margin:0}.section-head p{margin:5px 0 0;color:var(--muted)}
.grade-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.grade-card{position:relative;min-height:190px;padding:22px;border:1px solid var(--line);border-radius:24px;background:var(--surface);box-shadow:0 8px 26px rgba(32,39,66,.05);transition:.22s;overflow:hidden}.grade-card:hover{transform:translateY(-6px);border-color:#cbc7ff;box-shadow:var(--shadow)}.grade-icon{font-size:36px}.grade-card h3{font-size:23px;margin:18px 0 7px}.grade-card p{margin:0;color:var(--muted)}.grade-card .count{position:absolute;right:18px;bottom:17px;padding:6px 9px;border-radius:999px;background:#f0efff;color:var(--brand);font-size:12px;font-weight:800}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:50px 0}.feature{padding:24px;border-radius:22px;background:#fff;border:1px solid var(--line)}.feature b{display:block;font-size:18px;margin-bottom:7px}.feature span{color:var(--muted);line-height:1.5}
.ad-space{min-height:100px;display:grid;place-items:center;border:1px dashed #cfd3e2;border-radius:18px;color:#98a0b3;background:rgba(255,255,255,.55);margin:24px 0}
.page-title{margin:35px 0 22px;padding:32px;border-radius:28px;background:linear-gradient(135deg,#fff,#f0efff);border:1px solid #ddd9ff}.page-title h1{font-size:42px;margin:0 0 7px}.page-title p{margin:0;color:var(--muted)}
.filters{display:grid;grid-template-columns:2fr 1fr 1fr;gap:10px;padding:13px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}input,select{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink)}
.game-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin:22px 0}.game-card{min-height:230px;padding:19px;background:#fff;border:1px solid var(--line);border-radius:21px;display:flex;flex-direction:column;transition:.2s}.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.pill{align-self:flex-start;padding:6px 9px;border-radius:999px;background:#edfbf8;color:#078a7a;font-size:11px;font-weight:800}.game-card h3{font-size:19px;margin:15px 0 8px}.game-card p{color:var(--muted);font-size:14px;line-height:1.45}.card-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:auto}.level{font-size:12px;color:var(--muted)}.play{border:0;border-radius:11px;padding:10px 14px;background:var(--brand);color:#fff;font-weight:800;cursor:pointer}.pager{display:flex;gap:8px;justify-content:center;margin:28px}.pager button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 12px;cursor:pointer}.pager button.active{background:var(--brand);color:#fff}
dialog{width:min(760px,94%);max-height:91vh;border:0;border-radius:25px;padding:0;box-shadow:0 30px 90px rgba(18,24,54,.35)}dialog::backdrop{background:rgba(12,18,39,.68);backdrop-filter:blur(4px)}.modal-head{display:flex;justify-content:space-between;padding:20px 23px;border-bottom:1px solid var(--line)}.modal-head h2{margin:4px 0 0}.close{border:0;background:#f1f2f7;border-radius:11px;width:40px;height:40px;font-size:24px;cursor:pointer}.game-area{padding:24px}.question{font-size:25px;font-weight:850;margin:16px 0 20px}.answers{display:grid;gap:10px}.answer{padding:14px;border:1px solid var(--line);background:#fff;border-radius:13px;text-align:left;cursor:pointer}.answer:hover{border-color:var(--brand)}.answer.ok{background:#eafbf5;border-color:#20b486}.answer.no{background:#fff0ed;border-color:#ff765b}.progress{height:8px;background:#eeeef5;border-radius:99px;overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2))}.result{text-align:center;padding:45px}.result strong{display:block;font-size:70px;color:var(--brand)}footer{text-align:center;padding:45px 15px;color:var(--muted)}
@media(max-width:920px){.grade-grid,.game-grid{grid-template-columns:repeat(2,1fr)}.hero{grid-template-columns:1fr}.hero-number{display:none}.features{grid-template-columns:1fr}.filters{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.nav{display:none}.grade-grid,.game-grid,.filters{grid-template-columns:1fr}.hero{padding:32px 24px}.hero h1{font-size:42px}.page-title h1{font-size:34px}}