/* Presentation studio: shared storefront design, layered over the functional styles. */
:root{--bg:#f7f8fc;--text:#172342;--muted:#65718a;--brand:#3657e8;--brand-d:#2343ca;--accent:#ff7659;--line:#e4e8f1;--radius:20px;--shadow:0 8px 28px rgba(25,43,85,.065);--navy:#152b60;--lime:#deff82;--coral:#ff9a80}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{background:radial-gradient(ellipse at 95% 20%,#f0edff 0,transparent 38%),var(--bg);font-family:"Segoe UI",system-ui,-apple-system,Arial,sans-serif}
:focus-visible{outline:3px solid #759bff;outline-offset:4px}
.wrap{max-width:1320px;padding-left:28px;padding-right:28px}
.main{padding-top:28px;padding-bottom:56px}
h1,h2,h3{letter-spacing:-.025em}h2{font-size:1.8rem;line-height:1.2}
.site-head{background:rgba(255,255,255,.97);border-bottom:1px solid #e8ebf3;box-shadow:0 2px 20px #17234205}
.head-row{padding-top:18px;padding-bottom:18px;gap:24px}
.brand{gap:11px;font-size:1.04rem;line-height:1.2;letter-spacing:-.025em}
.brand img{width:43px;height:43px;padding:7px;background:#eef1ff;border-radius:12px}
.brand-copy{display:flex;flex-direction:column;gap:4px}.brand-copy strong{font-weight:750}.brand-copy small{font-size:.71rem;letter-spacing:.015em;font-weight:400;color:var(--muted)}
.search input{background:#f4f6fb;border:1px solid #e4e8f0;border-radius:12px 0 0 12px;padding:11px 14px}.search button{border-radius:0 12px 12px 0;padding:11px 20px}
.top-nav{gap:18px;font-size:.88rem}.top-nav .nav-sub{color:#d25035;white-space:nowrap}.top-nav .nav-login{background:var(--navy);color:#fff;padding:10px 19px;border-radius:11px}.top-nav .nav-login:hover{background:#294984;text-decoration:none}
.btn{border-radius:11px;transition:background .18s,transform .18s,box-shadow .18s}.btn:hover{box-shadow:0 4px 12px #17234215}.btn:active{transform:translateY(1px)}
.manager-strip{background:#f0f3ff;border-bottom:1px solid #e3e8fa}.manager-strip-inner{padding-top:10px;padding-bottom:10px;gap:16px}.manager-strip p{flex-direction:row;gap:12px;align-items:center;font-size:.8rem}.manager-strip p strong{display:inline-flex;align-items:center;gap:8px}.manager-strip p strong:before{content:"";width:6px;height:6px;border-radius:50%;background:#5576dd}.manager-strip p span{font-size:.8rem;color:#596a8e}.manager-strip .btn-sm{font-size:.76rem;background:transparent;color:#344ba0;border:1px solid #cfd8f3;padding:5px 12px;min-height:30px}.manager-strip .msg-max{color:#7042bd;border-color:#d9ccef}.manager-strip .btn:hover{background:#fff}
.studio-hero{isolation:isolate;position:relative;overflow:hidden;display:grid;grid-template-columns:1.13fr 1fr;gap:16px 32px;padding:48px 48px 0;margin:0 0 22px;border-radius:30px;background:radial-gradient(ellipse at 88% 15%,#5372da88,transparent 47%),linear-gradient(125deg,#142759 8%,#253f8d 100%);color:#fff;box-shadow:0 18px 44px #1a326d1a}
.studio-hero:after{content:"";position:absolute;z-index:-1;width:570px;height:570px;border-radius:50%;right:-200px;bottom:-350px;border:1px solid #ffffff24;box-shadow:0 0 0 70px #ffffff03,0 0 0 140px #ffffff03;pointer-events:none}
.studio-copy{position:relative;z-index:4;padding-bottom:30px;min-width:0}.studio-kicker{display:flex;align-items:center;gap:9px;font-size:.66rem;letter-spacing:.13em;font-weight:650;color:#c5d0f6;margin-bottom:24px}.studio-kicker>span{width:7px;height:7px;background:var(--lime);border-radius:50%}
.studio-hero h1{font-size:clamp(2.15rem,3.05vw,2.9rem);line-height:1.1;font-weight:760;letter-spacing:-.045em;margin:0;max-width:640px;text-wrap:balance}.headline-line{display:block}.headline-line-1{color:var(--lime);margin-top:10px}.headline-line-2{font-size:.51em;font-weight:550;letter-spacing:-.01em;margin-top:16px;color:#d8e1ff}
.studio-intro{font-size:.95rem;line-height:1.65;max-width:470px;color:#d0daf7;margin:22px 0 24px}.studio-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.studio-primary{display:inline-flex;align-items:center;justify-content:center;gap:22px;background:var(--lime);color:#173234;padding:15px 22px;font-size:.95rem;font-weight:750;box-shadow:0 5px 20px #05152925}.studio-primary:hover{background:#edffb1;color:#102b31}.studio-primary span{font-size:1.4rem;line-height:1}.studio-secondary{color:#fff;font-size:.88rem;font-weight:600}.studio-secondary:hover{color:var(--lime);text-decoration:none}.studio-secondary span{margin-left:9px}
.studio-formats{display:flex;gap:20px;flex-wrap:wrap;font-size:.71rem;color:#c4d1f2;margin-top:25px}.studio-formats b{border:1px solid #8194c166;border-radius:5px;padding:3px 5px;margin-right:5px;font-size:.66rem;color:#fff;letter-spacing:.04em}
.studio-bottom{grid-column:1/-1;display:flex;justify-content:space-between;gap:16px;padding:17px 0;border-top:1px solid #ffffff25;font-size:.68rem;color:#bfcef2}.studio-bottom i{font-style:normal;margin:0 9px;color:var(--lime)}
.studio-showcase{position:relative;align-self:center;min-height:440px;width:100%;max-width:500px;margin:0 auto}
.showcase-orbit{position:absolute;inset:16px 0 4px;border:1px solid #90a8ee44;border-radius:50%;transform:rotate(-30deg)}.showcase-orbit:after{content:"";position:absolute;inset:26px;border:1px dashed #90a8ee44;border-radius:50%}
.showcase-spark{position:absolute;right:7%;top:1%;width:60px;color:#ffb098;transform:rotate(14deg);z-index:3}
.showcase-sheet{position:absolute;display:block;overflow:hidden;background:#fff;border:1px solid #fff;border-radius:14px;color:var(--navy);box-shadow:0 22px 42px #0b194844;transition:transform .2s;transform-origin:center}.showcase-sheet:hover{color:var(--navy);text-decoration:none;z-index:6;transform:translateY(-7px) rotate(0)}
.showcase-sheet-0{width:65%;left:20%;top:60px;z-index:3;transform:rotate(6deg)}.showcase-sheet-1{width:43%;left:-3%;top:6px;z-index:1;transform:rotate(-13deg)}.showcase-sheet-2{width:40%;right:-3%;bottom:15px;z-index:2;transform:rotate(13deg)}
.showcase-sheet-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 11px;font-size:.52rem;background:#f6f7fc;border-bottom:1px solid #e9edf6}.showcase-sheet-bar>span{letter-spacing:2px;color:#c2c9da;font-size:.45rem}.showcase-sheet-bar b{font-weight:650;color:#586682}.showcase-sheet img{width:100%;height:auto;aspect-ratio:1;object-fit:contain;background:#f2f0ff}.showcase-sheet-caption{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:.64rem;line-height:1.35;font-weight:650;padding:11px 12px}.showcase-sheet-caption>span{font-size:1.15rem;color:var(--brand)}
.showcase-label{position:absolute;z-index:5;left:-3%;bottom:19px;display:flex;align-items:center;gap:10px;background:#fff3db;color:#62412e;padding:12px 16px;border-radius:12px;box-shadow:0 7px 25px #0e1e4f33;transform:rotate(-4deg);font-size:.74rem;line-height:1.5}.showcase-label>span:first-child{font-size:2rem;color:#ef8a49}.showcase-label strong{font-weight:700}
.gift-banner{display:flex;align-items:center;gap:26px;background:#e6f5c9;border:1px solid #d2e7ac;border-radius:22px;padding:24px 32px;position:relative;overflow:hidden}.gift-number{flex:0 0 90px;color:#315436;font-size:4rem;font-weight:850;line-height:.9;letter-spacing:-.08em;text-align:center;border-right:1px solid #bdcea4;padding-right:24px}.gift-number span{display:block;font-size:.62rem;letter-spacing:.01em;font-weight:650;margin-top:9px;white-space:nowrap}.gift-copy{flex:1;min-width:0}.section-kicker{display:block;font-size:.66rem;letter-spacing:.12em;font-weight:750;color:#6c7896;margin-bottom:10px}.gift-copy .section-kicker{color:#586e40;font-size:.58rem;margin-bottom:6px}.gift-copy h2{font-size:1.45rem;margin:0;letter-spacing:-.025em;color:#263e2a}.gift-copy p{font-size:.84rem;color:#576c45;margin:7px 0 0;line-height:1.45}.gift-button{background:#273f2d;color:#fff;font-size:.83rem;white-space:nowrap;padding:13px 18px}.gift-button:hover{background:#3b5b42}.gift-button span{margin-left:12px}
.benefit-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;padding:30px 9px;margin-bottom:12px;border-bottom:1px solid var(--line)}.benefit-row>div{display:flex;align-items:center;gap:14px}.benefit-icon{width:43px;height:43px;flex:0 0 43px;display:grid;place-items:center;border-radius:13px;font-size:1.55rem}.icon-blue{background:#e8edff;color:#3955cb}.icon-coral{background:#ffe9de;color:#b65938}.icon-lilac{background:#eee8ff;color:#7451ba}.benefit-row strong{display:block;font-size:.88rem;font-weight:700}.benefit-row small{display:block;font-size:.73rem;margin-top:3px}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin:0 0 23px}.section-heading h2{margin:0;font-size:1.9rem}.section-heading .section-kicker{margin-bottom:10px}.section-more{font-size:.85rem;font-weight:650;white-space:nowrap}.section-more span{margin-left:15px}.subject-gallery{margin:46px 0 52px}.subject-tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.subject-tile{position:relative;min-height:160px;padding:22px 24px;border-radius:20px;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;transition:transform .2s,box-shadow .2s}.subject-tile:hover{text-decoration:none;transform:translateY(-4px);box-shadow:0 12px 22px #24365b12}.subject-symbol{font-size:2.8rem;font-weight:750;line-height:1;letter-spacing:-.06em;opacity:.8}.subject-bottom strong{display:block;font-size:1.12rem;font-weight:750;letter-spacing:-.02em}.subject-bottom small{display:block;color:inherit;opacity:.75;font-size:.73rem;margin-top:3px}.subject-arrow{position:absolute;right:21px;top:20px;font-size:1.4rem}.subject-color-0{background:#e8ddff;color:#573d8e}.subject-color-1{background:#dff0e7;color:#2b6b55}.subject-color-2{background:#ffe4d7;color:#94523d}.subject-color-3{background:#e1ebff;color:#365899}
.catalog-section{scroll-margin-top:12px}.catalog-count{padding:8px 14px;border-radius:100px;background:#e9edfb;color:#50648e;font-size:.8rem;white-space:nowrap}.catalog-count b{color:#344f9b}.fbar{background:#fff;border:0;border-bottom:1px solid #e7eaf3}.fbar-row{padding-top:14px;padding-bottom:14px;gap:12px}.catalog-section .fbar{border:1px solid #e3e8f1;border-radius:18px;margin-bottom:18px}.catalog-section .fbar-row{padding:18px 20px;max-width:none}.fbar-label{font-size:.62rem;letter-spacing:.12em;color:#78839b}.pill{background:#f2f4fa;color:#374768;font-size:.85rem;padding:8px 13px}.pill.active{background:var(--navy);box-shadow:0 3px 8px #1428591f;color:#fff}.pill .cnt{font-size:.68rem}.seg{background:#f1f3fa;border-radius:10px}.seg-i{font-size:.83rem}.sortbar{font-size:.83rem;color:#65718a;margin:18px 0}.sortform select{border-radius:9px;font-size:.82rem;padding:8px 12px}
.grid{gap:22px}.card{border:1px solid #e4e8f2;border-radius:21px;box-shadow:0 5px 15px #1a315308;transition:transform .2s,box-shadow .2s,border-color .2s}.card:hover{transform:translateY(-5px);box-shadow:0 14px 30px #21366015;border-color:#cbd5ed}.card-img{aspect-ratio:1;background:#efedfa;padding:12px}.card-img img{border-radius:12px;object-fit:contain}.card[data-category=himiya] .card-img{background:#ebe9ff}.card[data-category=biologiya] .card-img{background:#e7f3ec}.card[data-category=istoriya] .card-img{background:#fff0df}.card[data-category=prazdniki] .card-img{background:#fff0ed}.card-body{padding:19px 20px 20px;gap:10px}.card h3{font-size:1rem;line-height:1.35;font-weight:750}.card-meta{font-size:.73rem;gap:4px 8px}.card .ctype{color:#5269af;font-weight:600}.card-desc{font-size:.8rem;line-height:1.6;color:#6a758b;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card .fmts{gap:5px}.fmt{border-radius:5px;padding:3px 6px;font-size:.62rem}.card-foot{margin-top:auto;padding-top:12px;justify-content:space-between;border-top:1px solid #eef0f5}.card-foot .price{font-size:1.22rem;font-weight:800;letter-spacing:-.025em}.card-foot .btn{background:#eef1ff;color:#344eaa;font-weight:700;padding:9px 17px;border-radius:10px}.card-foot .btn:hover{background:var(--brand);color:#fff}
.studio-catalog{position:relative;display:grid;grid-template-columns:1fr 230px;align-items:center;gap:30px;padding:34px 38px;margin:20px 0 30px;background:linear-gradient(120deg,#162c61,#3a54a1);border-radius:26px;color:#fff}.studio-catalog .section-kicker{color:#c4d3ff;font-size:.62rem}.studio-catalog .catalog-offer-title{font-size:clamp(1.6rem,2.6vw,2.25rem);line-height:1.25;font-weight:720;letter-spacing:-.035em;margin:0}.catalog-gift{background:var(--lime);padding:23px;border-radius:18px;color:#263c30;transform:rotate(2deg)}.catalog-gift b{font-size:3rem;line-height:1;font-weight:850;letter-spacing:-.05em}.catalog-gift strong{display:block;font-size:.9rem;margin-top:7px}.catalog-gift>span{display:block;font-size:.73rem;color:#567047;margin-top:4px}.catalog-gift a{display:inline-block;font-size:.8rem;font-weight:700;color:#273f2c;margin-top:14px}.cat-text{font-size:.97rem;line-height:1.65}.page-category .main>h1,.page-search h1{margin-top:26px}
.home-support{display:grid;grid-template-columns:1fr 330px;gap:50px;align-items:center;margin:54px 0;padding:38px 42px;background:#ede8fc;border-radius:24px;border:1px solid #e4def5}.home-support .section-kicker{color:#79649d}.home-support h2{margin:0;font-size:2rem;color:#42315e}.home-support p{color:#776886;font-size:.9rem;max-width:550px;margin:16px 0 0}.support-actions{display:flex;flex-direction:column;gap:10px}.support-actions .btn{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;font-size:.9rem}.support-details{font-size:.72rem;color:#75628e;text-align:center;margin-top:4px}.how{margin:48px 0}.how>h2{margin:0 0 22px}.how .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;list-style:none;counter-reset:steps;padding:0}.how .steps li{background:white;border:1px solid #e6eaf2;border-radius:18px;padding:23px;font-size:.84rem;color:#68748c;counter-increment:steps;margin:0;line-height:1.65}.how .steps li:before{content:"0" counter(steps);display:block;font-size:1.8rem;color:#bac6eb;line-height:1;font-weight:800;margin-bottom:20px}.how .steps b{display:block;color:#253753;font-size:1rem;margin-bottom:8px}.by-grade{margin:36px 0}.by-grade h2{font-size:1.45rem}.chips a{padding:9px 14px;border-color:#e2e7f1}.faq{max-width:900px;margin:42px auto}.faq h2{margin:0 0 23px}.faq details{border:1px solid #e2e7f1;box-shadow:none;border-radius:14px;padding:17px 21px}.faq summary{font-size:.95rem}.faq details p{font-size:.9rem;line-height:1.7;color:#65728b}
.buybox{border:1px solid #e2e7f0;border-radius:22px;padding:24px;box-shadow:0 10px 32px #2437590d}.buybox .price.big{font-size:2rem;font-weight:800;color:var(--navy)}.gallery-main{border-radius:23px;border:1px solid #e4e8f3}.welcome-copy,.welcome-panel{background:#e7f4ce;color:#365331;border-color:#d2e4b5}.auth{border-radius:24px;padding:30px;border:1px solid #e3e8f1;box-shadow:0 16px 50px #243d7310}.auth h1{font-size:1.65rem}.payment-hero{border-radius:26px;background:linear-gradient(125deg,#edf1ff,#faf1eb);border:1px solid #e3e7f6;padding:34px}.payment-benefits{gap:18px}.payment-benefits li{border-radius:18px}.site-foot{background:var(--navy);padding:40px 0 24px}.site-foot strong{font-size:1rem;color:#fff}.site-foot .foot-row{font-size:.84rem;line-height:1.8}.site-foot .copy{color:#a1b4df;padding-top:18px;border-top:1px solid #ffffff1a}
@media(min-width:1100px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1100px){.head-row{gap:15px}.brand{font-size:.94rem}.top-nav{gap:12px}.studio-hero{padding:38px 32px 0;gap:15px}.studio-showcase{min-height:395px}.showcase-sheet-0{top:67px;left:16%;width:70%}.showcase-sheet-1{top:13px;left:0}.showcase-sheet-2{right:0}.showcase-label{left:-5%;font-size:.67rem;padding:10px 12px}.studio-hero h1{font-size:2.25rem}.studio-intro{font-size:.88rem}.studio-actions{gap:18px}.studio-primary{font-size:.86rem;padding:13px 17px}.studio-secondary{font-size:.8rem}.gift-banner{padding:22px;gap:20px}.gift-copy h2{font-size:1.2rem}.gift-button{font-size:.78rem}.subject-tile{padding:20px;min-height:155px}.section-heading h2{font-size:1.65rem}.benefit-row{gap:15px}.benefit-row strong{font-size:.8rem}.benefit-row small{font-size:.68rem}}
@media(max-width:820px){.wrap{padding-left:20px;padding-right:20px}.head-row .search{flex-basis:100%;order:3}.head-row{padding-top:12px;padding-bottom:12px}.top-nav{margin-left:auto}.studio-hero{grid-template-columns:1fr;padding:34px 32px 0}.studio-copy{padding-bottom:0}.studio-hero h1{font-size:2.6rem;max-width:630px;text-wrap:initial}.studio-intro{max-width:560px;font-size:.95rem}.studio-showcase{min-height:360px;max-width:440px;margin:5px auto 20px}.showcase-sheet-0{width:58%;left:22%;top:20px}.showcase-sheet-1{top:0;left:0;width:40%}.showcase-sheet-2{width:36%;bottom:5px;right:0}.showcase-label{bottom:5px;left:3%}.showcase-spark{right:6%;top:0;width:44px}.studio-bottom{font-size:.64rem}.gift-banner{flex-wrap:wrap;gap:18px}.gift-number{flex-basis:70px;padding-right:18px;font-size:3.4rem}.gift-copy{flex-basis:calc(100% - 100px)}.gift-button{margin-left:88px}.subject-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.subject-tile{min-height:146px}.subject-gallery{margin:32px 0 42px}.benefit-row{grid-template-columns:1fr;gap:17px;padding:25px 7px}.benefit-row strong{font-size:.9rem}.benefit-row small{font-size:.8rem}.section-heading{align-items:start}.section-heading h2{font-size:1.6rem}.section-more{font-size:.8rem}.home-support{grid-template-columns:1fr;gap:24px;padding:30px}.support-actions{max-width:420px}.how .steps{grid-template-columns:repeat(2,minmax(0,1fr))}.studio-catalog{grid-template-columns:1fr 190px;padding:28px;gap:22px}.catalog-gift{padding:19px}.catalog-gift b{font-size:2.5rem}.studio-catalog .catalog-offer-title{font-size:1.5rem}}
@media(max-width:600px){html{scroll-padding-top:16px}.wrap{padding-left:14px;padding-right:14px}.main{padding-top:16px;padding-bottom:36px}.head-row{gap:10px;padding-top:10px;padding-bottom:10px}.brand{font-size:.79rem;gap:8px;white-space:normal}.brand img{width:36px;height:36px;border-radius:10px;padding:6px}.brand-copy{gap:2px}.brand-copy small{font-size:.6rem;white-space:nowrap}.brand-copy strong{max-width:165px;line-height:1.15}.brand span{white-space:normal!important;overflow:visible!important}.top-nav{font-size:.78rem;gap:9px}.top-nav .nav-sub{display:none}.top-nav .nav-login{padding:8px 14px;border-radius:9px}.top-nav .bal-chip{font-size:.75rem}.welcome-chip{font-size:.71rem;padding:6px 7px}.search input{padding:9px 11px}.search button{padding:9px 17px}.manager-strip-inner{flex-direction:row;justify-content:space-between;align-items:center;gap:7px;padding-top:8px;padding-bottom:8px}.manager-strip p{font-size:.7rem;gap:0}.manager-strip p span{display:none}.manager-strip .messengers{width:auto;gap:5px}.manager-strip .btn-sm{font-size:.64rem;padding:4px 7px;min-height:29px;white-space:nowrap}.studio-hero{padding:27px 22px 0;border-radius:22px;gap:14px;margin-bottom:14px}.studio-kicker{font-size:.56rem;letter-spacing:.095em;gap:7px;margin-bottom:19px}.studio-hero h1{font-size:clamp(1.82rem,7.2vw,2.5rem);line-height:1.13;letter-spacing:-.04em}.headline-line-1{margin-top:9px}.headline-line-2{font-size:.62em;margin-top:14px}.studio-intro{font-size:.82rem;line-height:1.6;margin:18px 0 21px}.studio-actions{gap:17px}.studio-primary{font-size:.87rem;padding:13px 17px;gap:20px}.studio-secondary{font-size:.8rem}.studio-formats{font-size:.63rem;gap:12px;margin-top:21px}.studio-formats b{font-size:.6rem}.studio-showcase{min-height:300px;max-width:340px;margin-top:4px;margin-bottom:4px}.showcase-sheet{border-radius:10px}.showcase-sheet-0{width:63%;left:18%;top:28px}.showcase-sheet-1{width:43%;top:5px;left:0}.showcase-sheet-2{width:40%;right:0;bottom:5px}.showcase-sheet-bar{padding:7px 8px;font-size:.45rem}.showcase-sheet-bar>span{font-size:.33rem;letter-spacing:1px}.showcase-sheet-caption{font-size:.48rem;padding:8px;gap:3px}.showcase-sheet-caption>span{font-size:.9rem}.showcase-spark{width:38px;right:5%}.showcase-label{font-size:.58rem;padding:8px 10px;gap:7px;bottom:12px;left:-2%;border-radius:9px}.showcase-label>span:first-child{font-size:1.5rem}.studio-bottom{padding:13px 0;display:block;font-size:.6rem;line-height:1.5}.studio-bottom>span:last-child{display:block;margin-top:3px;color:#aabde7}.gift-banner{border-radius:18px;padding:22px 19px;gap:15px}.gift-number{flex-basis:58px;font-size:3rem;padding-right:15px}.gift-number span{font-size:.5rem}.gift-copy{flex-basis:calc(100% - 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