:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--catalog-navy:#10172a;--catalog-copy:#516078;--catalog-blue:#3768ec;--catalog-mint:#58bea5;--catalog-violet:#836de8;--catalog-line:#dfe6f1;--catalog-surface:#fff;--catalog-soft:#f5f8fc;--catalog-shadow:0 18px 46px #1e325217}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--catalog-navy);letter-spacing:0;background:#fff;margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;line-height:1.5;overflow-x:hidden}a{color:inherit}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}:focus-visible{outline-offset:3px;outline:3px solid #3768ec5c}.catalog-container{width:min(1200px,100% - 40px);margin-inline:auto}.catalog-skip-link{z-index:100;background:var(--catalog-navy);color:#fff;border-radius:10px;padding:12px 16px;position:fixed;top:12px;left:12px;transform:translateY(-160%)}.catalog-skip-link:focus{transform:translateY(0)}.catalog-header{z-index:20;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffeb;border-bottom:1px solid #dfe6f1d1;position:sticky;top:0}.catalog-header-inner{grid-template-columns:auto 1fr auto;align-items:center;gap:32px;min-height:76px;display:grid}.catalog-brand{color:var(--catalog-navy);align-items:center;gap:10px;font-size:18px;font-weight:800;text-decoration:none;display:inline-flex}.catalog-brand-mark{background:linear-gradient(135deg, var(--catalog-mint), var(--catalog-blue) 54%, var(--catalog-violet));border-radius:10px;place-items:center;width:34px;height:34px;display:grid;box-shadow:0 8px 18px #3768ec38}.catalog-brand-mark span{border:3px solid #fff;border-top-color:#0000;border-radius:50%;width:12px;height:12px}.catalog-navigation{justify-content:center;gap:28px;display:flex}.catalog-navigation a,.catalog-login{color:#354156;align-items:center;min-height:44px;font-size:14px;font-weight:700;text-decoration:none;display:inline-flex}.catalog-navigation a[aria-current=page]{color:var(--catalog-blue)}.catalog-login{border:1px solid var(--catalog-line);background:#fff;border-radius:14px;justify-content:center;min-width:86px;padding-inline:18px}.catalog-hero{background:radial-gradient(circle at 78% 35%,#3768ec1f,#0000 27%),radial-gradient(circle at 88% 72%,#58bea524,#0000 24%),linear-gradient(#f8fbff,#fff)}.catalog-hero-inner{grid-template-columns:minmax(0,1.3fr) minmax(300px,.7fr);align-items:center;gap:56px;min-height:355px;padding-block:64px;display:grid}.catalog-kicker{color:#419d87;text-transform:uppercase;margin:0 0 10px;font-size:12px;font-weight:800}.catalog-hero h1{max-width:780px;margin:0;font-size:clamp(42px,5vw,68px);line-height:1.04}.catalog-hero p:last-child{max-width:690px;color:var(--catalog-copy);margin:24px 0 0;font-size:20px}.catalog-hero-visual{min-height:220px;box-shadow:var(--catalog-shadow);background:linear-gradient(#3768ec1a 1px,#0000 1px) 0 0/32px 32px,linear-gradient(90deg,#3768ec1a 1px,#0000 1px) 0 0/32px 32px,linear-gradient(145deg,#ffffffd9,#e8f9f4b8);border-radius:28px;position:relative;overflow:hidden}.catalog-hero-visual strong{color:var(--catalog-blue);font-size:72px;position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%)}.catalog-hero-visual span{border:8px solid #58bea573;border-radius:50%;width:42px;height:42px;position:absolute}.catalog-hero-visual span:first-child{top:28px;left:34px}.catalog-hero-visual span:nth-child(2){border-color:#836de86b;bottom:30px;right:34px}.catalog-hero-visual span:nth-child(3){border-width:5px;border-color:#3768ec66;width:20px;height:20px;top:44px;right:78px}.catalog-breadcrumbs{color:#718096;gap:8px;margin-bottom:24px;font-size:14px;display:flex}.catalog-breadcrumbs a{color:var(--catalog-blue)}.catalog-layout{grid-template-columns:minmax(230px,270px) minmax(0,1fr);align-items:start;gap:32px;display:grid}.catalog-filters-desktop{position:sticky;top:100px}.catalog-filter-form{border:1px solid var(--catalog-line);background:var(--catalog-surface);border-radius:24px;padding:24px;box-shadow:0 14px 36px #1e325212}.catalog-filter-heading,.catalog-results-header{justify-content:space-between;align-items:center;gap:20px;display:flex}.catalog-filter-heading h2,.catalog-results-header h2{margin:0;font-size:26px;line-height:1.15}.catalog-field{gap:8px;margin-top:22px;display:grid}.catalog-field>label,.catalog-field legend{color:#28354b;font-size:14px;font-weight:800}.catalog-field small{color:#76849a;font-size:12px}.catalog-field select,.catalog-search-field{border:1px solid var(--catalog-line);background:#fbfcfe;border-radius:14px;width:100%;min-height:48px}.catalog-field select{color:var(--catalog-navy);padding:0 14px}.catalog-search-field{align-items:center;gap:8px;padding-inline:13px;display:flex}.catalog-search-field span{color:var(--catalog-blue);font-size:22px}.catalog-search-field input{width:100%;min-width:0;color:var(--catalog-navy);background:0 0;border:0;outline:0}.catalog-format-field{border:0;padding:0}.catalog-radio{min-height:38px;color:var(--catalog-copy);cursor:pointer;align-items:center;gap:10px;display:flex}.catalog-radio input{width:18px;height:18px;accent-color:var(--catalog-blue)}.catalog-switch{cursor:pointer;align-items:center;gap:10px;min-height:48px;margin-top:20px;display:flex}.catalog-switch input{opacity:0;position:absolute}.catalog-switch>span{background:#dce4ee;border-radius:999px;flex:none;width:42px;height:24px;transition:background .18s;position:relative}.catalog-switch>span:after{content:"";background:#fff;border-radius:50%;width:16px;height:16px;transition:transform .18s;position:absolute;top:4px;left:4px;box-shadow:0 2px 6px #1e325233}.catalog-switch input:checked+span{background:var(--catalog-mint)}.catalog-switch input:checked+span:after{transform:translate(18px)}.catalog-switch input:focus-visible+span{outline-offset:3px;outline:3px solid #3768ec5c}.catalog-filter-actions{gap:12px;margin-top:24px;display:grid}.catalog-button{cursor:pointer;border:1px solid #0000;border-radius:14px;justify-content:center;align-items:center;gap:8px;min-height:48px;padding:10px 18px;font-weight:800;text-decoration:none;display:inline-flex}.catalog-button-primary{color:#fff;background:linear-gradient(135deg,#4cb49b,#3a7ce8);box-shadow:0 12px 24px #3768ec2e}.catalog-button-secondary{border-color:var(--catalog-line);color:var(--catalog-navy);background:#fff}.catalog-reset-link{color:#66758a;justify-content:center;align-items:center;min-height:40px;font-weight:700;display:inline-flex}.catalog-results-header{margin-bottom:22px}.catalog-results-header form{align-items:center;gap:10px;display:flex}.catalog-results-header label{color:#68768c;font-size:13px;font-weight:700}.catalog-results-header select{border:1px solid var(--catalog-line);background:#fff;border-radius:13px;min-height:44px;padding:0 38px 0 13px}.catalog-cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.material-card{border:1px solid var(--catalog-line);background:#fff;border-radius:22px;flex-direction:column;min-width:0;min-height:390px;padding:22px;transition:transform .18s,box-shadow .18s,border-color .18s;display:flex;box-shadow:0 12px 32px #1e325212}.material-card:hover,.material-card:focus-within{border-color:#3768ec52;transform:translateY(-3px);box-shadow:0 18px 42px #1e32521c}.material-card-top,.material-meta,.material-progress>div{justify-content:space-between;align-items:center;gap:10px;display:flex}.material-subject,.material-format,.material-meta span{border-radius:999px;align-items:center;min-height:28px;padding:4px 9px;font-size:11px;font-weight:800;display:inline-flex}.material-subject{color:#23826e;background:#e9f8f3}.material-card-visual{width:62px;height:62px;color:var(--catalog-blue);background:linear-gradient(145deg,#eefaff,#edfbf5);border-radius:18px;place-items:center;margin:24px 0 18px;font-size:30px;font-weight:800;display:grid}.material-card-copy{flex:auto}.material-card h3{margin:0;font-size:21px;line-height:1.22}.material-card h3 a{text-decoration:none}.material-card h3 a:after{content:"";position:absolute;inset:0}.material-card{position:relative}.material-card-copy p{color:var(--catalog-copy);margin:12px 0 0;font-size:14px}.material-meta{flex-wrap:wrap;justify-content:flex-start;margin-top:18px}.material-meta span{background:var(--catalog-soft);color:#5e6d83;min-height:26px}.material-meta .material-free{color:#23826e;background:#e9f8f3}.material-progress{margin-top:18px}.material-progress span,.material-progress strong{font-size:12px}.material-progress progress{border:0;border-radius:99px;width:100%;height:7px;margin-top:7px;overflow:hidden}.material-action{z-index:1;min-height:44px;color:var(--catalog-blue);align-self:flex-start;align-items:center;gap:8px;margin-top:18px;font-size:14px;font-weight:800;text-decoration:none;display:inline-flex;position:relative}.catalog-pagination{grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;margin-top:30px;display:grid}.catalog-pagination a,.catalog-pagination>span{border:1px solid var(--catalog-line);border-radius:12px;align-items:center;min-height:44px;padding:8px 14px;text-decoration:none;display:inline-flex}.catalog-pagination :last-child{justify-self:end}.catalog-pagination>span[aria-disabled=true]{color:#9aa6b6;background:#f5f7fa}.catalog-empty-state{border:1px solid var(--catalog-line);text-align:center;background:linear-gradient(145deg,#fbfdff,#f3fbf8);border-radius:24px;align-content:center;place-items:center;min-height:420px;padding:40px 24px;display:grid}.catalog-empty-state>div:first-child{width:70px;height:70px;color:var(--catalog-blue);background:#eaf7f3;border-radius:22px;place-items:center;font-size:30px;display:grid}.catalog-empty-state h3{margin:18px 0 0;font-size:28px}.catalog-empty-state p{color:var(--catalog-copy);margin:8px 0 22px}.catalog-empty-state>div:last-child{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.catalog-active-filters{flex-wrap:wrap;gap:8px;margin-bottom:22px;display:flex}.catalog-active-filters a{color:#3159b9;background:#edf3ff;border-radius:999px;align-items:center;gap:8px;min-height:36px;padding:6px 11px;font-size:13px;font-weight:700;text-decoration:none;display:inline-flex}.catalog-active-filters .catalog-clear-chip{color:#5e6b7d;background:#f4f6f9}.catalog-mobile-tools,.catalog-filter-dialog{display:none}.catalog-footer{border-top:1px solid var(--catalog-line);background:#f8fafc;padding:38px 0}.catalog-footer .catalog-container{grid-template-columns:auto 1fr auto;align-items:center;gap:30px;display:grid}.catalog-footer p{color:var(--catalog-copy);margin:0;font-size:14px}.catalog-footer nav{gap:18px;display:flex}.catalog-footer nav a{align-items:center;min-height:44px;font-size:13px;font-weight:700;display:inline-flex}.catalog-icon-button{border:1px solid var(--catalog-line);width:48px;height:48px;color:var(--catalog-navy);cursor:pointer;background:#fff;border-radius:14px;font-size:26px}.catalog-visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}@media (width<=1080px){.catalog-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-hero-inner{grid-template-columns:minmax(0,1fr) 280px;gap:34px}}@media (width<=820px){.catalog-container{width:min(100% - 32px,720px)}.catalog-header-inner{grid-template-columns:1fr auto}.catalog-navigation{display:none}.catalog-hero-inner{grid-template-columns:1fr;gap:28px;min-height:auto;padding-block:48px}.catalog-hero-visual{min-height:150px}.catalog-layout{display:block}.catalog-filters-desktop{display:none}.catalog-mobile-tools{justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.catalog-mobile-tools>span{color:var(--catalog-copy);font-size:13px;font-weight:700}.catalog-filter-count{background:var(--catalog-blue);color:#fff;border-radius:99px;place-items:center;min-width:22px;min-height:22px;font-size:11px;display:inline-grid}.catalog-filter-dialog{opacity:0;background:#fff;border:0;border-radius:26px 26px 0 0;width:min(520px,100%);max-width:none;max-height:min(90vh,760px);margin:auto 0 0;padding:0;transition:transform .18s,opacity .18s;display:block;inset:auto 0 0;overflow:auto;transform:translateY(16px)}.catalog-filter-dialog[open]{opacity:1;transform:translateY(0)}.catalog-filter-dialog:not([open]){display:none}.catalog-filter-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#10172a7a}.catalog-filter-dialog .catalog-filter-form{box-shadow:none;border:0;border-radius:0}.catalog-footer .catalog-container{grid-template-columns:1fr;gap:16px}}@media (width<=560px){.catalog-header-inner{min-height:66px}.catalog-brand{font-size:16px}.catalog-brand-mark{width:30px;height:30px}.catalog-login{min-width:72px;padding-inline:13px}.catalog-hero h1{font-size:38px}.catalog-hero p:last-child{margin-top:18px;font-size:17px}.catalog-hero-visual{min-height:128px}.catalog-section{padding-top:24px;padding-bottom:54px}.catalog-results-header{flex-direction:column;align-items:flex-start}.catalog-results-header form,.catalog-results-header select{width:100%}.catalog-results-header form{flex-direction:column;align-items:flex-start}.catalog-cards{grid-template-columns:1fr}.material-card{min-height:350px}.catalog-pagination{grid-template-columns:1fr 1fr}.catalog-pagination>span:nth-child(2){grid-area:1/1/auto/-1;justify-self:center}.catalog-pagination>:first-child{grid-area:2/1}.catalog-pagination>:last-child{grid-area:2/2}.catalog-footer nav{flex-direction:column;align-items:flex-start;gap:2px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:root{--catalog-navy:#111a36;--catalog-copy:#52617a;--catalog-blue:#3c66ea;--catalog-blue-deep:#2849b9;--catalog-mint:#55bfa4;--catalog-violet:#7766df;--catalog-yellow:#f0b84a;--catalog-line:#dde5f2;--catalog-surface:#fff;--catalog-soft:#f6f8fd;--catalog-shadow:0 18px 48px #2131571a;--catalog-shadow-hover:0 24px 60px #21315726}body{background:radial-gradient(circle at 6% 34%,#53c0a50f,#0000 22rem),radial-gradient(circle at 96% 56%,#5271eb0f,#0000 24rem),#fff}.catalog-container{width:min(1240px,100% - 48px)}.catalog-header{background:#ffffffe0;border-bottom:1px solid #dce4f1b8;box-shadow:0 8px 30px #23345a0a}.catalog-header-inner{min-height:82px}.catalog-brand{gap:12px;font-size:19px}.catalog-brand-mark{border-radius:13px;width:40px;height:40px;box-shadow:0 10px 24px #3768ec40}.catalog-navigation{gap:8px}.catalog-navigation a{border-radius:12px;padding-inline:14px;position:relative}.catalog-navigation a:hover{color:var(--catalog-blue-deep);background:#f2f5fb}.catalog-navigation a[aria-current=page]{color:var(--catalog-blue-deep);background:#edf2ff}.catalog-header-actions{align-items:center;gap:8px;display:flex}.catalog-header-home,.catalog-login{border-radius:14px;justify-content:center;align-items:center;min-height:46px;padding-inline:17px;font-size:14px;font-weight:800;text-decoration:none;display:inline-flex}.catalog-header-home{color:#4c5a70}.catalog-header-home:hover{background:#f2f5fa}.catalog-login{background:var(--catalog-navy);color:#fff;border-color:#0000;min-width:88px;box-shadow:0 10px 24px #111a3629}.catalog-login:hover{background:#1d2b54;transform:translateY(-1px);box-shadow:0 13px 28px #111a3638}.catalog-hero{background:radial-gradient(circle at 83% 16%,#59c1a52e,#0000 21rem),radial-gradient(circle at 68% 78%,#6370ee2b,#0000 26rem),linear-gradient(145deg,#f9fcff 0%,#f7f5ff 55%,#f0fbf8 100%);position:relative;overflow:hidden}.catalog-hero:before,.catalog-hero:after{content:"";pointer-events:none;position:absolute}.catalog-hero:before{border:1px solid #5269e01f;border-radius:50%;width:380px;height:380px;top:-220px;left:42%}.catalog-hero:after{border:42px solid #53c0a514;border-radius:50%;width:220px;height:220px;bottom:-140px;right:-80px}.catalog-hero-inner{grid-template-columns:minmax(0,.95fr) minmax(460px,1.05fr);gap:68px;min-height:540px;padding-block:70px 76px}.catalog-hero-copy{z-index:2;position:relative}.catalog-kicker{color:#318a76;letter-spacing:0;margin-bottom:12px;font-size:12px}.catalog-hero h1{max-width:680px;font-size:clamp(48px,4.6vw,72px);line-height:1.02}.catalog-hero .catalog-hero-lead{color:#4d5c75;max-width:640px;margin-top:22px;font-size:19px;line-height:1.6}.catalog-hero-actions{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.catalog-hero-actions .catalog-button{min-height:52px;padding-inline:22px}.catalog-hero-guide{align-items:center;gap:14px;max-width:570px;margin-top:26px;display:flex}.catalog-hero-guide img{object-fit:contain;filter:drop-shadow(0 10px 12px #293d7026);flex:none;width:62px;height:62px}.catalog-hero-guide p{gap:2px;margin:0;display:grid}.catalog-hero-guide strong{color:var(--catalog-navy);font-size:14px}.catalog-hero-guide span{color:#66748a;font-size:13px}.catalog-hero-visual{min-height:400px;box-shadow:none;background:0 0;border-radius:0;overflow:visible}.catalog-orbit{border:1px solid #4b62d326;border-radius:50%;position:absolute}.catalog-orbit:before{background:var(--catalog-yellow);content:"";border-radius:50%;width:12px;height:12px;position:absolute;box-shadow:0 6px 16px #f0b84a47}.catalog-orbit-one{width:390px;height:390px;top:4px;right:42px}.catalog-orbit-one:before{top:44px;right:50px}.catalog-orbit-two{border-color:#54bba22e;width:278px;height:278px;bottom:26px;right:98px}.catalog-orbit-two:before{background:var(--catalog-mint);top:142px;left:-5px}.catalog-hero-visual span.catalog-hero-chip{z-index:4;color:#40506a;white-space:nowrap;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffe0;border:1px solid #ffffffeb;border-radius:999px;align-items:center;width:max-content;height:auto;min-height:34px;padding:6px 12px;font-size:12px;font-weight:800;display:inline-flex;position:absolute;box-shadow:0 12px 28px #23355e1a}.catalog-hero-chip-math{color:#355cd1;top:20px;left:4px;transform:rotate(-4deg)}.catalog-hero-chip-code{color:#278875;top:82px;right:18px;transform:rotate(4deg)}.catalog-hero-board{z-index:2;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffd6;border:1px solid #fffffff0;border-radius:30px;width:min(470px,88%);padding:16px 18px 18px;position:absolute;top:48%;left:50%;overflow:hidden;transform:translate(-50%,-50%)rotate(-1deg);box-shadow:0 28px 70px #2e3e7030}.catalog-board-top{gap:6px;padding:0 0 10px;display:flex}.catalog-board-top span{background:#e9a95b;border:0;border-radius:50%;width:7px;height:7px;position:static}.catalog-board-top span:nth-child(2){background:#72c6ae}.catalog-board-top span:nth-child(3){background:#7784ed}.catalog-hero-board svg{width:100%;height:auto;display:block}.catalog-board-grid{fill:none;stroke:#dfe6f4;stroke-width:1px}.catalog-board-area{fill:url(#catalog-area-gradient)}.catalog-board-line{fill:none;stroke:#5571e7;stroke-linecap:round;stroke-width:7px}.catalog-hero-board circle{fill:#fff;stroke:#54bda3;stroke-width:5px}.catalog-board-footer{color:#617087;justify-content:space-between;align-items:center;gap:12px;padding:6px 4px 0;font-size:12px;display:flex}.catalog-board-footer span{border:0;border-radius:0;align-items:center;gap:7px;width:auto;height:auto;display:inline-flex;position:static}.catalog-board-footer i{background:var(--catalog-mint);border-radius:50%;width:8px;height:8px;display:inline-block}.catalog-board-footer 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