:root{
  --ink:#203d64;
  --navy:#173454;
  --red:#d35a4d;
  --red-dark:#b9473b;
  --paper:#fffefa;
  --blue-line:#dbe8f3;
  --cream:#f6f2e8;
  --yellow:#f9dc79;
  --muted:#64748b;
  --serif:Georgia,"Times New Roman",serif;
  --sans:"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--cream);color:var(--navy);font:15px/1.55 var(--sans)}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{max-width:100%}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{line-height:1.08}
.container{width:min(1150px,calc(100% - 44px));margin-inline:auto}
.skip-link,.sr-only{position:absolute;left:-9999px}
.skip-link:focus{left:12px;top:12px;z-index:30;padding:10px;background:white}
:focus-visible{outline:3px solid var(--red);outline-offset:3px}
.site-header{background:var(--paper);border-bottom:1px solid #d9e2e7}
.header-row{min-height:92px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-symbol{width:43px;height:47px;border:2px solid var(--ink);border-radius:5px;background:repeating-linear-gradient(180deg,#fff 0 9px,#dce8f4 10px 11px);position:relative;transform:rotate(-6deg)}
.brand-symbol:before{content:"";position:absolute;left:10px;top:0;bottom:0;border-left:2px solid #e2938e}
.brand-symbol:after{content:"А";position:absolute;right:7px;top:3px;color:var(--red);font:700 26px var(--serif)}
.brand-name{font:700 20px/1.08 var(--serif);letter-spacing:-.035em}
.brand-name small{display:block;margin-top:6px;color:var(--red);font:800 10px var(--sans);text-transform:uppercase;letter-spacing:.15em}
.main-nav{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:12px;font-weight:800}
.main-nav a:hover,.site-footer a:hover,.secondary-link:hover{color:var(--red)}
.header-link{padding:10px 16px;border:2px solid var(--red);border-radius:4px;color:var(--red-dark);font-size:12px;font-weight:900;white-space:nowrap}
.header-link:hover{background:var(--red);color:white}
.site-footer{background:#203d64;color:#eaf0f5;padding:34px 0}
.footer-row{display:flex;justify-content:space-between;align-items:center;gap:20px}
.site-footer strong{font:500 23px var(--serif)}
.site-footer small{display:block;margin-top:6px;color:#b8cbe0}
.site-footer nav{display:flex;flex-wrap:wrap;gap:12px 22px;font-size:12px;font-weight:800}
.section{padding:74px 0}
.label,.eyebrow{display:block;color:var(--red);font:900 12px var(--sans);letter-spacing:.17em;text-transform:uppercase}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:24px}
.section-heading h1,.section-heading h2{font:500 clamp(36px,4.4vw,55px)/1.05 var(--serif);letter-spacing:-.045em;margin:8px 0 0}
.section-heading p{max-width:325px;margin:0;color:var(--muted);font-size:14px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:49px;padding:12px 23px;border:2px solid var(--red);border-radius:4px;background:var(--red);color:white;font-size:13px;font-weight:900;text-align:center;box-shadow:5px 5px 0 #e4c1bb;transition:transform .2s,background .2s}
.button:hover{transform:translate(-2px,-2px);background:var(--red-dark);border-color:var(--red-dark)}
.button-outline,.button-secondary{border-color:#a9c0d0;background:transparent;color:var(--ink);box-shadow:none}
.button-outline:hover,.button-secondary:hover{background:#e4edf4;border-color:#a9c0d0;color:var(--ink)}
.secondary-link,.text-link,.support-inline{font-size:13px;font-weight:900;text-decoration:underline;text-decoration-color:var(--red);text-underline-offset:5px}
.materials{background:#edf3f7}
.materials:first-child{padding-top:36px}
.catalog-tools{margin:0 0 22px;padding:19px 21px;border:1px solid #d2dfe8;background:var(--paper);box-shadow:5px 6px 0 #d4e2eb}
.search-form{display:grid;grid-template-columns:1fr auto;gap:11px}
.search-form input{width:100%;min-width:0;min-height:49px;padding:10px 15px;border:1px solid #c6d6e2;background:#fff;color:var(--navy)}
.search-form input::placeholder{color:#76889a}
.search-form .button{box-shadow:none}
.catalog-filters{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.catalog-filter{padding:8px 14px;border:1px solid #cbd9e3;border-radius:99px;background:#f6f9fb;color:var(--ink);font-size:12px;font-weight:800}
.catalog-filter:hover,.catalog-filter.active{border-color:var(--red);background:var(--red);color:#fff}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.material-card{position:relative;min-width:0;background:var(--paper);border:1px solid #dbe3e9;box-shadow:7px 8px 0 #cfdfe9}
.material-card:before{content:"";position:absolute;z-index:2;top:-10px;left:23px;width:77px;height:20px;background:#f0cbb499;transform:rotate(-7deg);pointer-events:none}
.material-card:nth-child(3n+2):before{left:auto;right:24px;background:#d9cfedaa;transform:rotate(8deg)}
.material-card:nth-child(3n):before{background:#e8d77aaa}
.card-cover{position:relative;display:flex;align-items:center;justify-content:center;height:155px;overflow:hidden;background:#e7eef0}
.material-card:nth-child(3n+2) .card-cover{background:#f1ebde}
.material-card:nth-child(3n) .card-cover{background:#e8e6f0}
.card-cover:after{content:"";position:absolute;width:174px;height:174px;border:2px dashed #ffffffa8;border-radius:50%}
.card-label{position:absolute;z-index:2;top:13px;left:14px;padding:5px 8px;background:#fffefa;color:var(--red-dark);font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.cover-letter{color:#6f97a1;font:italic 110px/.9 var(--serif);transform:rotate(-12deg)}
.material-card:nth-child(3n+2) .cover-letter{color:#b28e72}
.material-card:nth-child(3n) .cover-letter{color:#9c8cb0}
.card-body{padding:22px 23px 20px}
.card-meta{color:var(--red);font-size:10px;font-weight:900;letter-spacing:.09em;text-transform:uppercase}
.card-body h3{min-height:59px;margin:11px 0;font:500 27px/1.1 var(--serif)}
.card-body h3 a:hover{color:var(--red)}
.card-body p{min-height:64px;margin-bottom:18px;color:#607083;font-size:13px}
.card-bottom{display:flex;align-items:center;justify-content:space-between;gap:9px;padding-top:15px;border-top:1px dashed #c6d4de}
.card-bottom strong{font:700 21px var(--serif);white-space:nowrap}
.card-bottom a{color:var(--red-dark);font-size:12px;font-weight:900;text-decoration:underline;text-underline-offset:4px}
.card-bottom a:hover{color:var(--navy)}
.catalog-more{margin-top:28px;text-align:center}
.result-count{margin:0 0 20px;color:var(--muted);font-size:12px}
.empty-state{max-width:720px;padding:35px;border:1px dashed #a7bfce;background:#fffefa}
.empty-state h2{font:500 34px var(--serif)}
.empty-state p{color:var(--muted)}
.empty-state a{color:var(--red-dark);font-weight:900;text-decoration:underline}
.pagination{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:18px;margin-top:33px;color:var(--muted);font-size:13px}
.pagination a{color:var(--red-dark);font-weight:900;text-decoration:underline}
.popular{background:var(--paper);background-image:repeating-linear-gradient(180deg,transparent 0 34px,#e6eef5 35px,#e6eef5 36px);border-block:1px solid #d7e4ed}
.popular-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.popular-card{position:relative;display:flex;flex-direction:column;min-height:210px;padding:24px;border:1px solid #dbe3e9;background:var(--paper);box-shadow:6px 7px 0 #d4e2eb;transition:transform .2s}
.popular-card:before{content:"";position:absolute;top:-8px;left:27px;width:63px;height:16px;background:#f2d8aa99;transform:rotate(-7deg)}
.popular-card:hover{transform:translateY(-3px)}
.popular-top{display:flex;justify-content:space-between;align-items:start;gap:12px}
.popular-top b{color:var(--red);font:italic 43px/1 var(--serif)}
.popular-top span{color:var(--ink);font-size:10px;font-weight:900;letter-spacing:.1em;text-align:right;text-transform:uppercase}
.popular-card h3{margin:20px 0 7px;font:500 25px/1.12 var(--serif)}
.popular-card p{margin:0 0 14px;color:var(--muted);font-size:12px}
.popular-card .text-link{align-self:start;margin-top:auto}
.popular-empty{padding:24px;border:1px dashed #c8d8e3;background:var(--paper);color:var(--muted);font-size:14px}
.hero{position:relative;overflow:hidden;background:var(--paper);background-image:repeating-linear-gradient(180deg,transparent 0 34px,#dce8f28c 35px,#dce8f28c 36px);border-bottom:1px solid #dde5e9}
.hero-grid{display:grid;grid-template-columns:1fr .94fr;align-items:center;min-height:530px;gap:25px}
.hero-copy{padding:70px 0 75px 54px;position:relative;z-index:2}
.hero h2{max-width:650px;margin:22px 0 21px;font:500 clamp(49px,5.3vw,75px)/.99 var(--serif);letter-spacing:-.062em}
.hero h2 em{color:var(--red)}
.hero-copy>p{max-width:475px;color:#52677d;font-size:16px}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:24px;margin-top:31px}
.hero-art{height:485px;position:relative}
.paper-stack{position:absolute;width:400px;height:415px;left:10%;top:36px;border:1px solid #e5e7e5;background:#fff;box-shadow:0 17px 32px #3245612a;transform:rotate(6deg)}
.paper-stack:before{content:"";position:absolute;z-index:-1;width:100%;height:100%;border:1px solid #e1e5e8;background:#fffefb;transform:translate(18px,11px) rotate(-9deg)}
.paper-page{position:absolute;inset:0;padding:34px 31px 25px 50px;background-image:linear-gradient(90deg,transparent 30px,#e5a19f 31px,#e5a19f 32px,transparent 33px),repeating-linear-gradient(180deg,transparent 0 30px,#dce7f1 31px,#dce7f1 32px)}
.hole{position:absolute;left:12px;width:13px;height:13px;border:1px solid #c7d1d1;border-radius:50%;background:#edf0e9}
.hole.one{top:75px}.hole.two{top:209px}.hole.three{top:342px}
.page-kicker{color:#7791a7;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.page-title{margin:41px 0 13px;color:var(--ink);font:italic 41px/1.13 var(--serif);letter-spacing:-.035em}
.page-title span{color:var(--red);text-decoration:underline;text-underline-offset:8px;text-decoration-thickness:2px}
.page-copy{color:#526a82;font:16px/2 var(--serif)}
.grade{position:absolute;right:22px;bottom:23px;color:var(--red);font:italic 40px var(--serif);transform:rotate(-10deg)}
.sticky{position:absolute;z-index:2;right:-8px;top:70px;width:142px;height:135px;padding:27px 16px;background:var(--yellow);box-shadow:5px 9px 16px #5a54302b;transform:rotate(11deg);color:#584927;font:italic 19px/1.25 var(--serif)}
.sticky:before{content:"";position:absolute;top:-9px;left:48px;width:54px;height:18px;background:#c5c4bb8c;transform:rotate(-5deg)}
.pencil{position:absolute;z-index:3;bottom:42px;left:0;width:298px;height:16px;border-radius:4px;background:linear-gradient(180deg,#e4a16e 0 22%,#d3684e 22% 75%,#b45142 75%);box-shadow:4px 7px 6px #0002;transform:rotate(-18deg)}
.pencil:before{content:"";position:absolute;left:-26px;top:0;border-right:27px solid #e7cfa7;border-top:8px solid transparent;border-bottom:8px solid transparent}
.pencil:after{content:"";position:absolute;left:-27px;top:5px;border-right:10px solid #45413b;border-top:3px solid transparent;border-bottom:3px solid transparent}
.sticker-row{display:flex;flex-wrap:wrap;gap:14px;padding-block:33px}
.sticker{padding:10px 17px;border:1px solid #dfe4e7;border-radius:99px;background:var(--paper);color:#365577;font-size:12px;font-weight:800}
.sticker:nth-child(2){background:#e7eff7}.sticker:nth-child(3){background:#fcf0d1}
.sticker:hover{border-color:var(--red);color:var(--red)}
.teacher{background:#e8f0f5}
.teacher-grid{display:grid;grid-template-columns:minmax(280px,.8fr) 1.2fr;align-items:center;gap:68px}
.teacher-photo{margin:0}
.teacher-photo img{display:block;width:100%;height:445px;object-fit:cover;object-position:center 24%;border:11px solid var(--paper);box-shadow:9px 10px 0 #c9dce9;transform:rotate(-2deg)}
.teacher-copy{max-width:820px}
.teacher-copy h2{margin:10px 0 8px;font:500 clamp(38px,4vw,54px)/1.05 var(--serif);letter-spacing:-.045em}
.teacher-role{color:var(--red);font-size:12px;font-weight:900;letter-spacing:.1em;text-transform:uppercase}
.teacher-copy>p:not(.teacher-role){max-width:560px;margin:25px 0;color:#566d83;font-size:15px}
.teacher-quote{padding-top:18px;border-top:1px dashed #b7cad9;color:var(--ink);font:italic 24px/1.3 var(--serif)}
.lesson{background:var(--paper);background-image:repeating-linear-gradient(180deg,transparent 0 34px,#e4edf4 35px,#e4edf4 36px)}
.lesson-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:75px}
.lesson-copy h2,.support-copy h2{margin:12px 0 19px;font:500 clamp(37px,4vw,55px)/1.05 var(--serif);letter-spacing:-.045em}
.lesson-copy p{max-width:490px;color:#5f7185}
.lesson-steps{padding-left:0;list-style:none;margin:0}
.lesson-steps li{display:flex;align-items:baseline;gap:16px;border-bottom:1px solid #dbe6ec;padding:14px 0;font-size:14px;font-weight:700}
.lesson-steps b{color:var(--red);font:italic 25px var(--serif)}
.note-panel{padding:41px 43px;background:#f8eab9;box-shadow:10px 12px 0 #dadbc9;transform:rotate(2deg)}
.note-panel span{color:#a8643b;font-size:11px;font-weight:900;letter-spacing:.13em;text-transform:uppercase}
.note-panel strong{display:block;margin:19px 0;color:#334b65;font:italic 43px/1.11 var(--serif)}
.note-panel p{margin:0;color:#6c6654;font-size:14px}
.support{background:var(--paper);border-top:1px solid #d2e0eb}
.support-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:65px;align-items:start}
.support-copy>p{max-width:430px;margin:19px 0;color:#566d83;font-size:15px}
.support-note{display:block;max-width:390px;margin-top:16px;color:var(--muted);font-size:11px}
.support-faq{padding:0 25px;border:1px solid #d4e1ea;background:var(--paper);box-shadow:7px 8px 0 #d4e2eb}
.support-faq details{border-bottom:1px dashed #c6d4de;padding:18px 0}
.support-faq details:last-child{border:0}
.support-faq summary{cursor:pointer;color:var(--ink);font-size:15px;font-weight:800}
.support-faq details p{margin:10px 0 0;color:#607083;font-size:13px}
.inner-page{min-height:65vh;padding:55px 0 95px;background:#edf3f7}
.back-link{display:inline-block;margin-bottom:34px;color:#516a80;font-size:13px;font-weight:800}
.back-link:hover{color:var(--red)}
.detail-grid,.checkout-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(290px,.66fr);align-items:start;gap:55px}
.detail-preview{display:grid;place-items:center;height:350px;margin-bottom:42px;overflow:hidden;border:1px solid #dbe3e9;background:#e7eef0;box-shadow:7px 8px 0 #cfdfe9}
.preview-paper{display:flex;flex-direction:column;width:min(290px,70%);height:335px;padding:31px;background:var(--paper);border:1px solid #d3dfe7;box-shadow:10px 10px 0 #5b75993d;transform:rotate(-6deg)}
.preview-paper span{color:var(--red);font-size:10px;font-weight:900;letter-spacing:.1em;text-transform:uppercase}
.preview-paper strong{margin:34px 0 24px;color:var(--ink);font:500 29px/1.1 var(--serif);overflow-wrap:anywhere}
.preview-paper i{display:block;height:1px;margin:10px 0;background:#c6d5e0}
.preview-paper i:last-child{width:65%}
.detail-title,.inner-title{max-width:740px;margin:12px 0 22px;font:500 clamp(40px,5vw,61px)/1.03 var(--serif);letter-spacing:-.05em}
.inner-title em{color:var(--red)}
.description{max-width:740px;color:#4f6479;font-size:16px;line-height:1.75}
.file-details{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.file-details span{padding:8px 11px;border:1px solid #cbd9e3;background:var(--paper);color:#536d82;font-size:11px;overflow-wrap:anywhere}
.purchase-card,.result-card{padding:33px;border:1px solid #dbe3e9;background:var(--paper);box-shadow:7px 8px 0 #cfdfe9}
.purchase-card{position:sticky;top:25px}
.purchase-card h2{margin:12px 0 18px;font:500 29px/1.12 var(--serif)}
.purchase-price{margin-bottom:23px;font:700 35px var(--serif)}
.purchase-button{width:100%}
.payment-hint,.order-number{margin:17px 0 0;color:#607083;font-size:12px}
.checkout-note{display:flex;align-items:start;gap:18px;padding:18px 0;border-bottom:1px dashed #c6d4de}
.checkout-note .step-number{color:var(--red);font:italic 25px var(--serif)}
.checkout-note strong{display:block}
.checkout-note p{margin:3px 0 0;color:var(--muted);font-size:13px}
.section-intro{max-width:580px;color:#607083;font-size:16px}
.result-card{max-width:760px;margin-inline:auto;padding:45px}
.result-card>p{color:#566b80;font-size:16px}
.result-card .button{margin:22px 12px 0 0}
.support-inline{display:inline-block;margin-top:20px;color:var(--red-dark)}
@media(max-width:1000px){
  .main-nav{gap:8px 14px}.hero-grid{grid-template-columns:1fr}.hero-copy{padding:65px 25px 10px}
  .hero-art{width:min(560px,100%);height:460px;margin:auto}.paper-stack{left:11%}.sticky{right:9%}
  .teacher-grid,.lesson-grid,.support-grid{gap:38px}.detail-grid,.checkout-grid{gap:30px}
}
@media(max-width:760px){
  .main-nav{display:none}.header-row{min-height:77px}.brand-name{font-size:17px}
  .section{padding:57px 0}.materials:first-child{padding-top:28px}
  .section-heading{display:block}.section-heading p{margin-top:12px}
  .card-grid,.popular-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .teacher-grid,.lesson-grid,.support-grid,.detail-grid,.checkout-grid{grid-template-columns:1fr}
  .teacher-photo{max-width:440px}.purchase-card{position:static}
  .footer-row{align-items:start;flex-direction:column}
  .inner-page{padding:42px 0 75px}
}
@media(max-width:600px){
  .container{width:min(100% - 32px,1150px)}
  .header-link{font-size:11px;padding:8px 9px}.brand-name{font-size:15px}
  .section-heading h1,.section-heading h2{font-size:clamp(34px,9vw,45px)}
  .search-form{grid-template-columns:1fr}.search-form .button{box-shadow:none}
  .catalog-tools{padding:14px}.card-grid,.popular-grid{grid-template-columns:1fr}
  .card-body h3,.card-body p{min-height:0}.card-cover{height:118px}.cover-letter{font-size:94px}
  .hero-copy{padding:49px 0 0}.hero h2{font-size:clamp(38px,9vw,55px);overflow-wrap:break-word}
  .hero-art{height:365px}.paper-stack{width:75%;height:310px;left:13%;top:29px}
  .paper-page{padding:23px 18px 10px 39px}.page-title{font-size:30px;margin:22px 0 5px}
  .page-copy{font-size:12px;line-height:2}.sticky{width:100px;height:97px;padding:20px 10px;font-size:13px;right:2%;top:36px}
  .pencil{width:190px;bottom:25px}.sticker-row{padding-block:22px}
  .teacher-photo img{height:380px}.note-panel{padding:31px}.note-panel strong{font-size:36px}
  .support-faq{padding:0 18px}.result-card,.purchase-card{padding:27px}
  .detail-preview{height:300px}.preview-paper{height:280px}.preview-paper strong{font-size:25px;margin:22px 0}
}
@media(max-width:390px){.header-link{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important}}