@font-face{font-family:FocusNexa;src:url(/landing/nexa-bold.woff2)format("woff2");font-weight:100 900;font-display:swap}:root{--blue:#4ba9d6;--blue-ink:#12668d;--ink:#17191c;--muted:#656b72;--line:#e2e5e8;--surface:#f7f8fa;--heading:FocusNexa, Arial, sans-serif;--body:FocusNexa, Arial, sans-serif;--section-eyebrow:#08add3;--section-title:#102936;--section-copy:#536773;--section-title-size:clamp(32px, 3.5vw, 48px);--content-title-size:clamp(24px, 2.4vw, 32px);--content-card-title-size:18px;--content-body-size:13px}.focus-search-form button{justify-content:center;align-items:center;gap:9px;display:inline-flex}.focus-search-icon{background:currentColor;flex:none;width:19px;height:19px;display:inline-block;-webkit-mask:url(/landing/search.svg) 50%/contain no-repeat;mask:url(/landing/search.svg) 50%/contain no-repeat}*{box-sizing:border-box}html{-moz-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:100px}body{background:var(--surface);color:var(--ink);font:16px/1.6 var(--body);margin:0}button,input,select,textarea{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}button{color:inherit}img{max-width:100%;display:block}button:focus-visible,a:focus-visible,input:focus-visible{outline-offset:5px;outline:3px solid #2185b5}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--heading);letter-spacing:-.045em;line-height:1.2}h1{font-size:clamp(2.65rem,4vw,4.5rem);font-weight:750}h2{font-size:1.65rem;font-weight:750}h3{letter-spacing:-.025em;font-size:1.2rem}em{color:var(--blue-ink);font-style:normal}.skip{z-index:99;background:#fff;padding:12px;position:fixed;top:-100px;left:230px}.skip:focus{top:5px}.sidebar{color:#fff;z-index:30;background:#101113;flex-direction:column;width:220px;padding:38px 22px 25px;display:flex;position:fixed;inset:0 auto 0 0}.brand{width:160px;margin:0 auto 57px;display:block}.brand img{width:100%;height:auto}.side-label{letter-spacing:.14em;color:#9ca1a6;margin:0 12px 20px;font-size:12px}.sidebar nav{flex-direction:column;gap:7px;display:flex}.sidebar nav a{color:#bec2c6;white-space:nowrap;border-radius:7px;align-items:center;gap:13px;padding:12px 13px;font-size:14px;display:flex}.sidebar nav a:hover{color:#fff;background:#23272c}.sidebar nav a.active{color:#091e28;background:#4ba9d6;font-weight:700}.side-note{letter-spacing:.075em;color:#b8bec4;margin-top:auto;padding:45px 12px 38px;font-size:12px}.little-dot{background:var(--blue);border-radius:50%;width:5px;height:5px;margin-right:4px;display:inline-block}.side-note p{font-family:var(--heading);color:#fff;letter-spacing:-.025em;margin-top:13px;font-size:19px;line-height:1.4}.side-bottom{letter-spacing:.06em;border-top:1px solid #2d3035;gap:11px;padding:23px 8px 0;font-size:12px;line-height:1.5;display:flex}.side-bottom div>span{color:#91969c;letter-spacing:0;font-size:12px;display:block}.mini-eye{width:38px;height:38px;color:var(--blue);background:#272a2f;border-radius:9px;place-items:center;font-size:24px;font-weight:800;display:grid}.workspace{min-width:0;margin-left:220px}.topbar{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;gap:16px;height:83px;padding:0 44px;display:flex}.top-left{align-items:center;gap:21px;display:flex}.top-title{letter-spacing:.14em;white-space:nowrap;font-size:12px}.top-title b{font-weight:750}.top-divider{border-left:1px solid #dadde0;height:18px}.top-subtitle{color:var(--muted);font-size:12px}.preview-label{color:#606872;white-space:nowrap;align-items:center;gap:7px;font-size:12px;display:flex}.preview-label>span{background:var(--blue);border-radius:50%;width:6px;height:6px}main{max-width:1440px;margin:auto;padding:42px 44px 0}.welcome{grid-template-columns:1.05fr 1fr;align-items:center;gap:32px;margin-bottom:58px;display:grid}.eyebrow{letter-spacing:.14em;align-items:center;gap:8px;font-size:12px;font-weight:700;line-height:1.5;display:flex}.eyebrow>span{background:var(--blue);border-radius:50%;width:6px;height:6px}.muted{color:var(--muted)}.welcome h1{margin:22px 0;line-height:1.1}.welcome p,.topic-heading p{color:var(--muted);font-size:16px;line-height:1.7}.button{border:0;border-radius:7px;justify-content:center;align-items:center;gap:30px;min-height:48px;padding:13px 21px;font-size:14px;font-weight:650;transition:background .18s,transform .18s;display:inline-flex}.button:hover{transform:translateY(-2px)}.primary{color:#fff;background:#15181c}.primary:hover{background:#2c353d}.welcome .button{margin-top:28px}.welcome-foot{color:#5c636b;letter-spacing:.12em;align-items:center;gap:14px;margin-top:35px;font-size:12px;display:flex}.welcome-foot span{color:#1792c9;font-size:16px}.welcome-portrait{background:#e9eef1;border-radius:13px;height:355px;position:relative;overflow:hidden}.welcome-portrait>img{object-fit:cover;object-position:65% 40%;mix-blend-mode:multiply;width:100%;height:100%}.portrait-caption{background:#fff;border-radius:5px;padding:12px 18px;position:absolute;bottom:20px;left:24px;transform:rotate(-3deg);box-shadow:0 4px 20px #00000009}.portrait-caption span{letter-spacing:.12em;font-size:12px;display:block}.portrait-caption strong{font:750 24px var(--heading);letter-spacing:-.04em}.photo-label{letter-spacing:.13em;writing-mode:vertical-rl;color:#54616b;font-size:12px;position:absolute;top:17px;right:12px}.section-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:24px;display:flex}.section-heading h2{margin-top:8px}.section-number{color:#717780;letter-spacing:.08em;white-space:nowrap;font-size:12px}.filter-bar{gap:8px;margin-bottom:20px;display:flex}.chip{background:0 0;border:1px solid #dce0e5;border-radius:5px;justify-content:center;align-items:center;gap:8px;padding:7px 15px;font-size:13px;display:inline-flex}.chip:hover{background:#e9f0f4}.chip.selected{color:#fff;background:#1a1c20;border-color:#1a1c20}.subject-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;display:grid}.subject-card{border-radius:10px;flex-direction:column;justify-content:space-between;min-height:274px;padding:25px 25px 0;transition:transform .18s;display:flex}.subject-card.physics:hover{transform:translateY(-4px)}.physics{color:#082637;background:#4ba9d6}.pale{color:#26343f;background:#e8edf2}.thermo{color:#fff;background:#1e262c}.subject-top{justify-content:space-between;align-items:flex-start;margin-bottom:29px;display:flex}.course-code{font:800 38px/.95 var(--heading);letter-spacing:-.05em}.round-arrow{border:1px solid #16638544;border-radius:50%;padding:8px;transform:rotate(-40deg)}.subject-category{letter-spacing:.1em;opacity:.75;font-size:12px;font-weight:650}.subject-card h3{margin:8px 0 9px;font-size:23px}.subject-card p{opacity:.85;font-size:13px;line-height:1.5}.subject-footer{--dummy:0;border-color:#152b3a28;border-top-style:solid;border-top-width:1px;justify-content:space-between;align-items:center;margin-top:24px;padding:12px 0;font-size:12px;display:flex}.thermo .subject-footer{color:#d5dbe0;border-color:#ffffff29}.practice-section{margin-top:48px}.text-link{align-items:center;gap:10px;font-size:13px;font-weight:600;display:inline-flex}.text-link:hover{color:var(--blue-ink)}.exercise-preview-grid,.catalog-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.exercise-card{border:1px solid var(--line);background:#fff;border-radius:10px;transition:box-shadow .2s,transform .2s;overflow:hidden}.exercise-card:hover{transform:translateY(-3px);box-shadow:0 9px 28px #1426320b}.exercise-image{border-bottom:1px solid var(--line);background:#fff;height:185px;position:relative;overflow:hidden}.exercise-image>img{object-fit:contain;width:100%;height:100%;padding:23px 12px}.exercise-badge{letter-spacing:.06em;background:#f3f5f7e8;border:1px solid #dfe5ea;border-radius:4px;padding:3px 7px;font-size:12px;position:absolute;top:12px;left:12px}.exercise-arrow{color:#fff;background:#15191c;border-radius:50%;place-items:center;width:31px;height:31px;display:grid;position:absolute;bottom:12px;right:12px}.exercise-text{padding:21px}.exercise-text .eyebrow{font-size:12px}.exercise-text h3{min-height:48px;margin:9px 0 20px;font-size:17px;line-height:1.4}.exercise-link{color:#5b6470;justify-content:space-between;align-items:center;gap:8px;font-size:12px;display:flex}.bottom-statement{background:#e2f1f8;border-radius:10px;justify-content:space-between;align-items:center;gap:24px;margin-top:38px;padding:30px;display:flex}.bottom-statement>span{letter-spacing:.1em;max-width:70px;font-size:12px}.bottom-statement p{font:500 20px/1.5 var(--heading);letter-spacing:-.03em}.bottom-statement strong{font-weight:750}.light{color:#121a21;background:#fff}.footer{border-top:1px solid var(--line);color:#6a727b;justify-content:space-between;gap:20px;margin-top:46px;padding:24px 0;font-size:12px;display:flex}.breadcrumb{color:#606a74;gap:12px;margin-bottom:32px;font-size:12px;display:flex}.breadcrumb a:hover{color:#14719c}.topic-heading{grid-template-columns:1.3fr 1fr;align-items:center;gap:36px;margin-bottom:38px;display:grid}.topic-heading h1{margin:15px 0 20px;font-size:clamp(3rem,4vw,4.6rem)}.topic-mark{color:#fff;background:#192229;border-radius:12px;flex-direction:column;justify-content:space-between;min-height:230px;padding:40px;display:flex}.topic-mark>span{letter-spacing:.19em;color:#a8bfce;font-size:12px}.topic-mark strong{font:750 clamp(2.3rem, 4vw, 4.5rem) var(--heading);letter-spacing:-.06em}.topic-mark strong span{color:var(--blue)}.topic-mark>div{color:#c1cdd4;border-top:1px solid #ffffff29;margin-top:18px;padding-top:15px;font-size:12px}.topic-toolbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;display:flex}.tabs{align-self:stretch;gap:25px;display:flex}.tabs>button{color:#66717b;background:0 0;border:0;border-bottom:3px solid #0000;padding:17px 0;font-size:14px}.tabs>button.selected{border-color:var(--blue);color:#17232c;font-weight:700}.tabs button>span{background:#e2eaf0;border-radius:3px;margin-left:7px;padding:2px 6px;font-size:12px}.search{color:#78848e;background:#fff;border:1px solid #dce2e7;border-radius:6px;align-items:center;gap:9px;max-width:255px;padding:7px 10px;display:flex}.search input{background:0 0;border:0;outline:none;width:100%;min-width:0;font-size:13px}.search button{background:0 0;border:0;place-items:center;padding:0;display:grid}.catalog-summary{justify-content:space-between;margin:22px 0;font-size:12px;display:flex}.catalog-summary>span{color:#727c85}.typographic-cover{color:#183444;background:#e8eef2;flex-direction:column;justify-content:center;align-items:center;padding:32px;display:flex}.typographic-cover>span:first-child{letter-spacing:.2em;font-size:12px}.typographic-cover>strong{font:750 66px/1.1 var(--heading);letter-spacing:-.07em}.typographic-cover>small{letter-spacing:.12em;color:#697e8c;font-size:12px}.guide{grid-template-columns:repeat(3,1fr);gap:24px;padding:35px 0;display:grid}.guide article{border:1px solid var(--line);background:#fff;border-radius:8px;padding:28px}.guide article>span{font:750 38px var(--heading);color:#237ba5}.guide h2{margin:24px 0 14px;font-size:21px}.guide p{color:#64717c;font-size:15px}.empty{text-align:center;padding:60px 20px}.empty>svg{margin:auto}.empty h2{margin:20px 0 10px}.empty p{margin-bottom:25px}.study-top{justify-content:space-between;align-items:center;gap:20px;margin-bottom:35px;display:flex}.study-grid{grid-template-columns:minmax(0,1fr) 310px;gap:28px;display:grid}.lesson h1{max-width:850px;margin:12px 0 23px;font-size:clamp(1.7rem,2.6vw,2.7rem);line-height:1.25}.player{color:#fff;background:#151b20;border-radius:10px;overflow:hidden}.player-stage{aspect-ratio:16/9;place-items:center;display:grid;position:relative;overflow:hidden}.player-stage>img{object-fit:contain;opacity:.15;background:#fff;width:100%;height:100%;padding:22px;position:absolute;inset:0}.player-message{text-align:center;flex-direction:column;align-items:center;padding:25px;display:flex;position:relative}.play-circle{background:var(--blue);color:#0b2431;border-radius:50%;place-items:center;width:63px;height:63px;margin-bottom:18px;display:grid}.player-message strong{font:650 21px var(--heading);margin-bottom:7px}.player-message>span:last-child{color:#c6d0d7;font-size:13px}.player-bottom{letter-spacing:.04em;border-top:1px solid #ffffff20;justify-content:space-between;gap:10px;padding:12px 18px;font-size:12px;display:flex}.player-bottom>span:first-child{align-items:center;gap:10px;display:flex}.player-wordmark{opacity:.15;width:40%;position:absolute}.lesson-details{border:1px solid var(--line);background:#fff;border-radius:8px;margin-top:32px;padding:25px}.lesson-details h2{margin:8px 0 20px;font-size:23px}.lesson-details p{white-space:pre-wrap;color:#4f5964;overflow-wrap:anywhere;font-size:15px;line-height:1.9}.lesson-list{border:1px solid var(--line);background:#fff;border-radius:10px;align-self:start;overflow:hidden}.lesson-list-head{border-bottom:1px solid var(--line);padding:25px}.lesson-list-head h2{margin:9px 0;font-size:23px}.lesson-list-head p{color:#6e7781;font-size:12px}.lesson-items{max-height:600px;overflow:auto}.lesson-items>button{text-align:left;background:#fff;border:0;border-bottom:1px solid #edf0f3;align-items:center;gap:11px;width:100%;padding:16px 15px;font-size:12px;line-height:1.5;display:flex}.lesson-items>button:hover{background:#f0f6f9}.lesson-items>button.current{background:#e5f3fa;box-shadow:inset 3px 0 #4ba9d6}.lesson-number{color:#84909c;align-self:flex-start;min-width:20px;font-size:12px}.lesson-items>button>span:nth-child(2){flex:1}.lesson-items small{color:#72808d;margin-top:3px;font-size:12px;display:block}.lesson-items svg{flex-shrink:0}.lesson-list-footer{border-top:1px solid var(--line);color:#61717e;align-items:center;gap:13px;padding:20px;font-size:12px;display:flex}.focus-mode .sidebar,.focus-mode .topbar,.focus-mode .lesson-list{display:none}.focus-mode .workspace{margin:0}.focus-mode main{max-width:1100px}.focus-mode .study-grid{grid-template-columns:1fr}.focus-mode .lesson h1{max-width:none}.mobile-menu{display:none}.icon-button{background:0 0;border:0;padding:6px;line-height:0}.scrim{display:none}@media (min-width:1600px){main{padding-top:55px}.welcome-portrait{height:410px}.welcome{gap:60px}.subject-card{min-height:300px}.exercise-image{height:210px}}@media (max-width:1150px){.sidebar{width:190px;padding:30px 14px}.brand{width:145px}.workspace{margin-left:190px}.sidebar nav a{gap:10px;font-size:12px}.topbar{padding:0 28px}main{padding:30px 28px 0}.welcome{gap:22px}.welcome h1{font-size:3rem}.welcome-portrait{height:340px}.subject-card{padding:20px 20px 0}.subject-card h3{font-size:21px}.study-grid{grid-template-columns:minmax(0,1fr) 270px;gap:20px}.section-heading h2{font-size:23px}.topic-mark{padding:25px}.bottom-statement{gap:15px;padding:23px}.bottom-statement p{font-size:17px}.button{gap:17px}}@media (max-width:900px){.top-subtitle,.top-divider,.section-number{display:none}.welcome{grid-template-columns:1fr .85fr}.welcome h1{font-size:2.5rem}.welcome-portrait{height:310px}.portrait-caption{padding:9px 13px;bottom:15px;left:13px}.portrait-caption strong{font-size:21px}.welcome-foot{gap:8px;font-size:12px}.welcome p{font-size:14px}.subject-grid,.exercise-preview-grid,.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.bottom-statement{flex-wrap:wrap}.bottom-statement>span{display:none}.study-grid{grid-template-columns:1fr}.lesson-items{max-height:340px}.topic-heading{grid-template-columns:1fr}.topic-mark{min-height:170px}.topic-mark strong{font-size:45px}.guide{grid-template-columns:1fr}.topic-toolbar{flex-wrap:wrap;gap:10px;padding-bottom:15px}.search{width:100%;max-width:none}}@media (max-width:650px){.sidebar{width:230px;transition:transform .2s;transform:translate(-100%)}.sidebar.is-open{transform:translate(0)}.sidebar nav a{font-size:14px}.workspace{margin-left:0}.scrim{z-index:20;background:#0008;border:0;display:block;position:fixed;inset:0}.mobile-menu{display:block}.topbar{gap:10px;height:65px;padding:0 17px}.top-left{gap:10px}.top-title{font-size:12px}.preview-label{gap:4px;font-size:12px}main{padding:28px 20px 0}.welcome{grid-template-columns:1fr;gap:28px;margin-bottom:37px}.welcome h1{margin:16px 0;font-size:clamp(2.6rem,10vw,3.6rem)}.welcome p{font-size:16px}.welcome .button{margin-top:21px}.welcome-foot{gap:14px;margin-top:22px;font-size:12px}.welcome-portrait{height:255px}.welcome-portrait>img{object-position:50% 43%}.photo-label{font-size:12px}.section-heading{align-items:flex-start;gap:15px}.section-heading h2{font-size:23px;line-height:1.3}.eyebrow{font-size:12px}.subject-grid{grid-template-columns:1fr;gap:14px}.subject-card{min-height:235px;padding:23px 23px 0}.subject-top{margin-bottom:23px}.subject-card h3{font-size:25px}.subject-card p{font-size:14px}.subject-category{font-size:12px}.subject-footer{font-size:13px}.practice-section{margin-top:37px}.practice-section .section-heading{flex-direction:column}.exercise-preview-grid,.catalog-grid{grid-template-columns:1fr;gap:18px}.exercise-image{height:215px}.exercise-text h3{min-height:0;font-size:19px}.exercise-text .eyebrow{font-size:12px}.exercise-link{font-size:13px}.bottom-statement{padding:24px;display:block}.bottom-statement p{font-size:21px}.bottom-statement .button{width:100%;margin-top:20px}.footer{flex-direction:column;gap:6px;margin-top:30px;font-size:12px}.breadcrumb{margin-bottom:23px;font-size:12px}.topic-heading h1{font-size:3rem}.topic-heading p{font-size:15px}.topic-heading{gap:23px;margin-bottom:25px}.topic-mark{min-height:160px;padding:23px}.topic-mark strong{font-size:43px}.tabs{gap:18px}.tabs button{font-size:13px}.tabs button>span{margin-left:3px}.catalog-summary{gap:10px;font-size:12px}.study-top{align-items:flex-start;gap:14px;margin-bottom:26px}.study-top .chip{max-width:165px;padding:6px 9px;font-size:12px}.study-top .text-link{font-size:12px}.study-grid{gap:24px}.lesson h1{font-size:29px}.player-message strong{font-size:16px}.player-message>span:last-child{font-size:12px}.play-circle{width:42px;height:42px;margin-bottom:12px}.player-message{padding:15px}.player-bottom{padding:10px;font-size:12px}.lesson-details{padding:20px}.lesson-details p{font-size:16px}.lesson-items>button{font-size:14px}.lesson-items small{font-size:12px}.lesson-list-head p{font-size:14px}.skip{left:10px}.focus-mode main{padding-top:20px}.guide p{font-size:16px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important;animation:none!important}}.management{max-width:1440px;margin:0 auto;padding:30px 5vw 70px}.manage-nav,.manage-nav>div,.manage-heading,.import-controls{justify-content:space-between;align-items:center;gap:20px;display:flex}.manage-nav{border-bottom:1px solid #dce3e8;padding-bottom:30px}.manage-nav img{width:118px}.manage-nav a{font-size:14px}.manage-heading{margin:42px 0 28px}.manage-heading h1{letter-spacing:-1.5px;margin:12px 0;font-size:clamp(30px,4vw,48px)}.manage-heading p,.manage-panel p{color:#53616b;line-height:1.65}.admin-notice{color:#164e69;background:#e2f2fa;border-radius:12px;padding:18px 22px;line-height:1.6}.manage-stats{grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0;display:grid}.manage-stats button{text-align:left;cursor:pointer;background:#fff;border:1px solid #d9e3ea;border-radius:14px;padding:24px}.manage-stats button.selected{background:#eef8fc;border-color:#12668d}.manage-stats strong{margin-bottom:8px;font-size:36px;display:block}.manage-stats span{font-size:16px}.manage-panel{background:#fff;border:1px solid #dde5ea;border-radius:16px;margin-bottom:24px;padding:28px}.manage-panel h2{letter-spacing:-.6px;margin-top:0;font-size:24px}.manage-panel h3{font-size:20px}.management .section-heading{gap:20px;margin-bottom:18px}.management label{gap:9px;font-size:14px;display:grid}.management input,.management textarea{color:#17252f;font:inherit;background:#fff;border:1px solid #bccbd4;border-radius:8px;width:100%;padding:12px}.management input[type=file]{max-width:100%}.import-controls{flex-wrap:wrap;justify-content:flex-start;align-items:flex-end;margin:20px 0}.import-controls label{flex:1;min-width:180px}.management button:disabled{opacity:.55;cursor:not-allowed}.admin-status{color:#12668d;min-height:24px}.admin-error{color:#902d28;background:#fff0ee;border-radius:10px;padding:18px 28px;line-height:1.6}.admin-hint{font-size:14px}.import-report{border-top:1px solid #dce5eb;margin-top:25px;padding-top:12px}.import-report details{margin:20px 0}.import-report summary{cursor:pointer;padding:10px 0}.table-scroll{max-height:540px;overflow:auto}.management table{border-collapse:collapse;text-align:left;width:100%;font-size:14px}.management th{color:#5a6a75;background:#f3f6f8;font-weight:600;position:sticky;top:0}.management td,.management th{border-bottom:1px solid #e7edf1;padding:15px 12px}.management td small{color:#697883;overflow-wrap:anywhere;margin-top:6px;display:block}.admin-search{min-width:240px}.record-editor{border-top:2px solid #4ba9d6;margin-top:30px;padding-top:24px}.record-editor label{margin:20px 0}.admin-empty{color:#53616b;padding:35px 0}.catalog-subjects{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:28px 0 34px;display:grid}.catalog-subject-option{--subject-accent:#258ab6;--subject-wash:#f1f9fc;border:1px solid #d3dfe8;border-top:4px solid var(--subject-accent);background:linear-gradient(180deg, var(--subject-wash), #fff 75%);border-radius:18px;min-width:0;height:102px;padding:8px 10px;transition:transform .16s,box-shadow .16s;display:block;position:relative;overflow:hidden;box-shadow:0 7px 18px #1525360d}.catalog-subject-option:hover{transform:translateY(-2px);box-shadow:0 11px 22px #1525361a}.catalog-subject-option:focus-visible{outline:3px solid var(--subject-accent);outline-offset:3px}.catalog-subject-option[aria-current=page]{border-color:var(--subject-accent);box-shadow:0 0 0 2px var(--subject-accent), 0 10px 24px #15253618}.catalog-page>.manage-heading>div{gap:8px;display:grid}.catalog-page>.manage-heading .eyebrow{color:var(--section-eyebrow);font-family:var(--heading);letter-spacing:.14em;font-size:12px;font-weight:700;line-height:1.5}.catalog-page>.manage-heading h1{color:var(--section-title);font-family:var(--heading);font-size:var(--section-title-size);letter-spacing:-1.5px;margin:0;font-weight:700;line-height:1}.catalog-page>.manage-heading p{color:var(--section-copy);margin:0;font-size:16px;line-height:1.45}@media (min-width:851px){.management.catalog-page{padding-top:0}.catalog-page>.manage-heading{min-height:250px;margin:0}.catalog-page>.manage-heading>div{min-width:0}.catalog-page>.catalog-subjects{margin-top:0}}.catalog-subject-label,.library-subject-label{width:100%;height:100%;display:block;position:relative;overflow:hidden}.catalog-subject-label img,.library-subject-label img{object-fit:cover;object-position:center 46%;width:100%;height:100%;display:block}.catalog-visually-hidden{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}.library-layout{grid-template-columns:310px 1fr;align-items:start;gap:28px;display:grid}.library-topics{--subject-accent:#258ab6;--subject-wash:#f1f9fc;border-top:4px solid var(--subject-accent);background:linear-gradient(180deg, var(--subject-wash), #fff 230px);padding:18px}.library-topics h2{font-size:20px}.library-topics p{color:var(--section-copy);margin:4px 8px 16px;font-size:14px;line-height:1.45}.library-subject-label{height:100px;margin:-2px 0 0}.library-topic-list{gap:8px;display:grid}.library-topics .library-topic-link{background:#fff;border:1px solid #d9e3e9;border-radius:12px;min-height:66px;padding:0;transition:border-color .15s,box-shadow .15s,transform .15s;display:block;position:relative;overflow:hidden;box-shadow:0 3px 10px #1525360a}.library-topics .library-topic-link:hover{border-color:var(--subject-accent);transform:translate(2px)}.library-topics .library-topic-link:focus-visible{outline:3px solid var(--subject-accent);outline-offset:2px}.library-topics .library-topic-link[aria-current=page]{border-color:var(--subject-accent);box-shadow:0 0 0 2px var(--subject-accent), 0 7px 16px #15253612}.catalog-topic-label{width:100%;height:72px;padding:4px;display:block;position:relative;overflow:hidden}.catalog-topic-label img{object-fit:contain;width:100%;height:100%;display:block}.catalog-topic-label img[src^="/catalogo/temas-sin-fondo/"]{object-fit:cover;object-position:center 46%}.catalog-topic-fallback{color:#fff;background:linear-gradient(110deg, var(--subject-accent), color-mix(in srgb, var(--subject-accent) 78%, #000));grid-template-columns:58px 1fr;align-items:center;min-height:66px;padding:7px 12px 7px 7px;display:grid;position:relative}.catalog-topic-fallback>span{z-index:1;border:8px solid color-mix(in srgb, var(--subject-accent) 78%, #fff);width:48px;height:48px;box-shadow:0 3px 0 color-mix(in srgb, var(--subject-accent) 70%, #000);background:radial-gradient(circle,#211b19 0 26%,#fff 27% 55%,#0000 56%);border-radius:50%;position:relative}.catalog-topic-fallback strong{z-index:1;text-transform:uppercase;font-size:12px;line-height:1.18;position:relative}.catalog-access{min-width:0}.catalog-access-heading{gap:6px;margin:4px 0 18px;display:grid}.catalog-access-heading .eyebrow{color:var(--section-eyebrow);font-family:var(--heading)}.catalog-access-heading h2{color:var(--section-title);font-family:var(--heading);font-size:var(--content-title-size);letter-spacing:-.8px;margin:0;font-weight:700;line-height:1.05}.catalog-mode-heading h2{font-size:var(--content-title-size);margin:7px 0 0}.catalog-access-options{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.catalog-access-option{--mode-color:#00afd7;--mode-wash:#eefaff;border:1px solid #cbd8df;border-left:5px solid var(--mode-color);color:#0d2330;cursor:pointer;min-width:0;min-height:172px;font:inherit;text-align:left;background:#fff;border-radius:18px;grid-template-columns:48px minmax(0,1fr);gap:12px;padding:18px;transition:border-color .16s,box-shadow .16s,transform .16s;display:grid;box-shadow:0 6px 18px #1327380d}.catalog-access-option[data-mode=rental]{--mode-color:#0a9f42;--mode-wash:#effaf3}.catalog-access-option[data-mode=subscription]{--mode-color:#ff9f0a;--mode-wash:#fff8e9}.catalog-access-option:hover{border-color:var(--mode-color);transform:translateY(-2px);box-shadow:0 10px 24px #13273818}.catalog-access-option:focus-visible{outline:3px solid var(--mode-color);outline-offset:3px}.catalog-access-option[aria-selected=true]{border-color:var(--mode-color);background:var(--mode-wash);box-shadow:0 0 0 2px var(--mode-color), 0 10px 24px #13273818}.catalog-access-icon{width:48px;height:48px;color:var(--mode-color);background:var(--mode-wash);border-radius:14px;place-items:center;display:grid}.catalog-access-icon svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2px;width:30px;height:30px}.catalog-access-copy{flex-direction:column;gap:4px;min-width:0;display:flex}.catalog-access-copy>span{color:var(--mode-color);letter-spacing:.11em;font-size:11px;font-weight:800}.catalog-access-copy strong{color:var(--section-title);font-family:var(--heading);font-size:var(--content-card-title-size);line-height:1.18}.catalog-access-copy small{color:var(--section-copy);font-size:var(--content-body-size);margin-top:3px;line-height:1.35}.catalog-access-action{color:var(--mode-color);grid-column:1/-1;align-self:end;font-size:13px;font-weight:800}.catalog-access-panel{min-width:0;margin-top:18px}.catalog-access-panel[hidden]{display:none}.catalog-access-panel:focus{outline:none}.catalog-access-panel .catalog-free .focus-sample{margin-top:0}.catalog-rental-section,.catalog-subscription-section{background:#fff;border:1px solid #d3dfe8;border-radius:22px;padding:30px;box-shadow:0 8px 22px #1525360c}.catalog-rental-section{--rental-green:#07983c}.catalog-rental-hero{border-bottom:1px solid color-mix(in srgb, var(--subject-accent) 26%, #d3dfe8);background:linear-gradient(120deg, var(--subject-wash) 0 54%, #fff 78%);border-radius:22px 22px 0 0;grid-template-columns:minmax(0,1fr) 250px;min-height:330px;margin:-30px -30px 28px;display:grid;position:relative;overflow:hidden}.catalog-rental-hero:before{content:"";background:var(--subject-accent);width:6px;position:absolute;inset:0 auto 0 0}.catalog-rental-hero-copy{z-index:1;align-self:center;padding:34px 16px 34px 36px;position:relative}.catalog-rental-hero-copy h2{max-width:690px;margin:8px 0 12px;font-size:clamp(27px,3vw,38px);line-height:1.06}.catalog-rental-hero-copy>p{color:#405867;max-width:650px;margin:0;font-size:16px;line-height:1.5}.catalog-rental-promises{flex-wrap:wrap;gap:9px;margin:22px 0 0;padding:0;list-style:none;display:flex}.catalog-rental-promises li{color:#176234;background:#fff;border:1px solid #b9daca;border-radius:999px;padding:9px 12px 9px 31px;font-size:12px;font-weight:800;position:relative}.catalog-rental-promises li:before{content:"✓";color:var(--rental-green);font-weight:900;position:absolute;left:12px}.catalog-rental-portrait{background:0 0;min-width:0;position:relative}.catalog-rental-portrait img{object-fit:contain;object-position:center bottom;width:100%;height:100%;position:absolute;inset:0}.catalog-rental-portrait img.is-santi,.catalog-subscriber-hero .catalog-rental-portrait img.is-santi{object-fit:contain;object-position:center bottom}.catalog-mode-heading{max-width:760px;margin-bottom:24px}.catalog-mode-heading p{color:#536577;margin:12px 0 0;line-height:1.55}.catalog-mode-empty{color:#536577;background:#f4f7f9;border-radius:14px;padding:22px}.catalog-commercial-cta{--mode-color:#0a9f42;border-left:5px solid var(--mode-color);background:#f4f8fa;border-radius:16px;justify-content:space-between;align-items:center;gap:22px;margin-top:24px;padding:20px 22px;display:flex}.catalog-commercial-cta[data-mode=subscription]{--mode-color:#ff9f0a}.catalog-commercial-cta>div{gap:4px;display:grid}.catalog-commercial-cta strong{font-size:18px}.catalog-commercial-cta span{color:#536577;font-size:14px}.catalog-commercial-cta a{border:2px solid var(--mode-color);color:var(--mode-color);border-radius:999px;flex:none;padding:13px 18px;font-weight:800;text-decoration:none}.catalog-commercial-cta a:hover{color:#fff;background:var(--mode-color)}.catalog-subscription-section{--subscription-orange:#ff9f0a;--subscription-ink:#a85f00;background:#fff;overflow:hidden}.catalog-subscription-hero{background:linear-gradient(118deg,#fffaf0 0 58%,#fff 78%);border-bottom:1px solid #f2d6a4;border-radius:22px 22px 0 0;grid-template-columns:minmax(0,1fr) 300px;min-height:390px;margin:-30px -30px 28px;display:grid;position:relative;overflow:hidden}.catalog-subscription-hero:before{content:"";z-index:2;background:var(--subscription-orange);width:6px;position:absolute;inset:0 auto 0 0}.catalog-subscription-hero-copy{z-index:1;align-self:center;padding:34px 24px 34px 36px;position:relative}.catalog-subscription-hero-copy .eyebrow{color:var(--subscription-ink)}.catalog-subscription-hero-copy h2{max-width:610px;margin:8px 0 12px;font-size:clamp(29px,3vw,39px);line-height:1.06}.catalog-subscription-hero-copy>p{color:#405867;max-width:630px;font-size:16px;line-height:1.5}.catalog-subscription-offer{background:#fff;border:1px solid #f0d29b;border-radius:17px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;max-width:650px;margin-top:24px;padding:16px 17px;display:grid;box-shadow:0 8px 24px #92580012}.catalog-subscription-price{flex-direction:column;min-width:0;display:flex}.catalog-subscription-price small{color:#536577;font-size:11px;font-weight:750}.catalog-subscription-price strong{color:#142a36;font-family:var(--heading);font-variant-numeric:tabular-nums;letter-spacing:-.035em;margin-top:3px;font-size:30px;line-height:1}.catalog-subscription-price>span{color:var(--subscription-ink);margin-top:7px;font-size:11px;font-weight:750;line-height:1.35}.catalog-subscription-offer .cart-add button{border:2px solid var(--subscription-orange);color:#fff;background:var(--subscription-orange);text-align:center;border-radius:999px;padding:13px 17px;font-size:13px;font-weight:850}.catalog-subscription-offer .cart-add button:hover,.catalog-subscription-offer .cart-add button:focus-visible{color:var(--subscription-ink);background:#fff}.catalog-subscription-section .cart-add button[aria-pressed=true]{color:#754300;background:#fff0d4;border-color:#b86c00}.catalog-subscription-section .cart-add a,.catalog-subscription-section .catalog-plan-extras>a,.catalog-plan-topics-heading>a,.catalog-plan-topic-copy>a{color:#925400}.catalog-plan-extras{background:#fffaf0;border:1px solid #efd7aa;border-radius:17px;gap:12px;max-width:650px;margin-top:16px;padding:20px;display:grid}.catalog-plan-extras>.eyebrow,.catalog-plan-topics .eyebrow{color:var(--subscription-ink)}.catalog-plan-extras>p,.catalog-plan-topics-heading p{color:#526473;margin:0;font-size:13px;line-height:1.45}.catalog-combo-tiers{grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;display:grid}.catalog-combo-tiers>span{background:#fff;border:1px solid #ead9bc;border-radius:12px;gap:5px;padding:12px;display:grid}.catalog-combo-tiers strong{color:#18313e;font-size:13px}.catalog-combo-tiers small{color:#526473;font-size:11px;line-height:1.4}@media (max-width:680px){.catalog-combo-tiers{grid-template-columns:1fr}}.catalog-plan-extra{background:#fff;border:1px solid #ead9bc;border-radius:13px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:15px;padding:14px;display:grid}.catalog-plan-extra>div,.catalog-plan-topic-copy{gap:5px;min-width:0;display:grid}.catalog-plan-extra strong,.catalog-plan-topic h4{color:#18313e;font-size:15px}.catalog-plan-extra span,.catalog-plan-topic small{color:#526473;font-size:12px;line-height:1.4}.catalog-plan-extra small{color:#925400;font-size:12px;font-weight:800}.catalog-plan-extras .cart-add button,.catalog-plan-topic .cart-add button{color:#865000;background:#fff9ed;border-color:#cb7900;min-height:40px}.catalog-plan-extra .cart-add button{text-align:center;justify-content:center;align-items:center;display:inline-flex}.catalog-plan-extras .cart-add button:hover,.catalog-plan-topic .cart-add button:hover{background:#fff0d4}.catalog-plan-extras>a,.catalog-plan-topics-heading>a,.catalog-plan-topic-copy>a{font-size:13px;font-weight:800;text-decoration:none}.catalog-plan-extras>a:hover,.catalog-plan-topics-heading>a:hover,.catalog-plan-topic-copy>a:hover{text-decoration:underline}.catalog-plan-topics{margin:0 0 24px}.catalog-plan-topics-heading{justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px;display:flex}.catalog-plan-topics-heading h3{color:#18313e;margin:5px 0 7px;font-size:clamp(20px,2vw,25px)}.catalog-plan-topic-list{gap:10px;display:grid}.catalog-plan-topic{background:#fffdf9;border:1px solid #e5d4b4;border-radius:14px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;padding:15px 17px;display:grid}.catalog-plan-topic h4{margin:0}.catalog-plan-topic-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:9px;display:flex}.catalog-plan-topic-actions .cart-add{justify-content:flex-end}.exercise-cart-option{border-top:1px solid #f1d29b;gap:8px;margin-top:14px;padding-top:14px;display:grid}.exercise-cart-option small{color:#58707c;font-size:11px;line-height:1.4}.catalog-subscription-unavailable,.exercise-access-unavailable{color:#6c7780;text-align:center;font-size:13px;font-weight:750}.catalog-subscription-portrait{background:0 0;min-width:0;margin:0;position:relative;overflow:hidden}.catalog-subscription-portrait img{object-fit:cover;object-position:56% center;width:100%;height:85%;position:absolute;bottom:0;left:0;right:0}.catalog-subscription-portrait img.is-santi{object-fit:contain;object-position:center bottom;width:150%;max-width:none;height:100%;left:-25%;right:auto}.catalog-subscription-portrait figcaption{color:#704500;background:#fffaf0eb;border:1px solid #f3d6a3;border-radius:13px;padding:11px 13px;font-size:12px;font-weight:800;line-height:1.35;position:absolute;bottom:16px;left:16px;right:16px;box-shadow:0 6px 18px #1726331c}.catalog-subscription-preview{background:#fffaf0;border:1px solid #ecd9b7;border-radius:16px;justify-content:space-between;align-items:center;gap:20px;margin-top:18px;padding:17px 19px;display:flex}.catalog-subscription-preview>div{gap:3px;display:grid}.catalog-subscription-preview span{color:var(--subscription-ink);letter-spacing:.12em;font-size:10px;font-weight:900}.catalog-subscription-preview strong{color:#18313e;font-size:15px}.catalog-subscription-preview small{color:#657783;font-size:11px}.catalog-subscription-preview button,.catalog-subscriber-previewbar button{color:#a85f00;cursor:pointer;font:inherit;background:#fff;border:2px solid #ff9f0a;border-radius:999px;flex:none;padding:11px 15px;font-size:12px;font-weight:850}.catalog-subscription-preview button:hover,.catalog-subscription-preview button:focus-visible,.catalog-subscriber-previewbar button:hover,.catalog-subscriber-previewbar button:focus-visible{color:#fff;background:#ff9f0a}.catalog-subscriber-section{--rental-green:#ff9f0a;--subject-accent:#ff9f0a!important;--subject-wash:#fff7e8!important}.catalog-subscriber-hero{background:linear-gradient(120deg,#fff8eb 0 54%,#fffdf8 100%)}.catalog-subscriber-hero .eyebrow{color:#a85f00}.catalog-subscriber-hero .catalog-rental-portrait{background:0 0}.catalog-subscriber-hero .catalog-rental-portrait img{object-fit:contain}.catalog-subscriber-hero .catalog-rental-promises li{color:#795000;border-color:#efd4a4}.catalog-subscriber-previewbar{color:#795000;background:#fffaf0;border:1px solid #efd9b1;border-radius:14px;justify-content:space-between;align-items:center;gap:18px;margin-bottom:20px;padding:11px 14px 11px 17px;font-size:12px;font-weight:800;display:flex}.catalog-subscriber-previewbar button{border-width:1px;padding:8px 12px;font-size:11px}.library-exercises{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.library-exercises-classes{grid-template-columns:1fr}.library-exercise{border:1px solid #d3dfe8;border-top:4px solid var(--subject-accent);color:#0d2330;background:#fff;border-radius:18px;grid-template-rows:188px minmax(0,1fr);min-width:0;margin:0;text-decoration:none;transition:border-color .18s,box-shadow .18s,transform .18s;display:grid;overflow:hidden;box-shadow:0 7px 20px #1525360b}.library-exercise:hover{border-color:var(--subject-accent);transform:translateY(-3px);box-shadow:0 14px 28px #15253618}.library-exercise[data-format=complete-class]{grid-template-rows:minmax(258px,auto);grid-template-columns:minmax(0,42%) minmax(0,1fr)}.library-exercise[data-format=complete-class] .library-exercise-visual{border-bottom:0;border-right:1px solid #dce6ec}.library-exercise[data-format=complete-class] .library-exercise-visual>img{object-fit:contain;padding:0}.library-exercise[data-format=complete-class] .library-exercise-copy{padding:24px}.library-exercise:focus-visible{outline:3px solid var(--subject-accent);outline-offset:3px}.library-exercise-visual{background:linear-gradient(145deg, var(--subject-wash), #fff);border-bottom:1px solid #dce6ec;place-items:center;min-width:0;display:grid;position:relative;overflow:hidden}.library-exercise-visual>img{object-fit:contain;width:100%;height:100%;padding:13px}.library-exercise-placeholder{width:100%;height:100%;color:var(--subject-accent);text-align:center;place-items:center;gap:7px;padding:24px;display:grid}.library-exercise-placeholder>span{letter-spacing:.2em;font-size:11px;font-weight:900}.library-exercise-placeholder>strong{text-transform:uppercase;max-width:280px;font-size:18px;line-height:1.2}.library-exercise-author{color:#fff;background:#102b3be8;border-radius:999px;padding:7px 10px;font-size:11px;font-weight:800;position:absolute;bottom:10px;right:12px;box-shadow:0 3px 10px #0002}.library-exercise-copy{flex-direction:column;min-width:0;padding:19px;display:flex}.library-exercise-meta{color:#5b6e7c;letter-spacing:.11em;justify-content:space-between;align-items:center;gap:12px;font-size:10px;font-weight:850;display:flex}.library-exercise-meta span:last-child:not(:first-child){color:var(--rental-green);letter-spacing:.08em;background:#edf9f1;border-radius:999px;padding:5px 8px}.library-exercise[data-access=subscription] .library-exercise-meta span:last-child:not(:first-child){color:#a85f00;background:#fff3dc}.library-exercise-title{margin-top:10px;font-size:21px;line-height:1.13}.library-exercise-statement{color:#4d606d;-webkit-line-clamp:3;-webkit-box-orient:vertical;min-height:64px;margin-top:10px;font-size:13px;line-height:1.58;display:-webkit-box;overflow:hidden}.library-exercise-class-info{color:#4d606d;margin-top:12px;font-size:13px;font-weight:650}.library-exercise-price{border-top:1px solid #dfe8e3;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:16px;margin-top:16px;padding-top:14px;display:grid}.library-exercise-price-copy{flex-direction:column;gap:2px;min-width:0;display:flex}.library-exercise-price-copy>span{color:#18313e;font-size:12px;font-weight:800}.library-exercise-price-copy>small{color:#08732e;font-size:11px;font-weight:650;line-height:1.35}.library-exercise-price>strong{color:#0d2330;font-family:var(--heading);font-variant-numeric:tabular-nums;letter-spacing:-.025em;white-space:nowrap;font-size:23px;font-weight:700;line-height:1}.library-exercise-features{flex-wrap:wrap;gap:7px;margin-top:9px;display:flex}.library-exercise-features>span{color:#b96a00;background:#fff7e8;border-radius:999px;padding:5px 8px;font-size:11px;font-weight:750}.library-exercise[data-access=subscription] .library-exercise-features>span{color:#a85f00;background:#fff3dc}.library-exercise-action{color:var(--rental-green);margin-top:auto;padding-top:18px;font-size:13px;font-weight:850}.catalog-subscription-prompt{background:linear-gradient(110deg,#fff9eb 0 62%,#fff 62%);border:1px solid #f0d49e;border-left:6px solid #ff9f0a;border-radius:18px;grid-column:1/-1;grid-template-columns:minmax(0,1fr) 230px;min-height:210px;display:grid;position:relative;overflow:hidden}.catalog-subscription-prompt>div{align-self:center;padding:26px 18px 26px 28px}.catalog-subscription-prompt .eyebrow{color:#d97d00}.catalog-subscription-prompt h3{margin:7px 0;font-size:25px;line-height:1.08}.catalog-subscription-prompt p{color:#566975;max-width:600px;margin:0;line-height:1.48}.catalog-subscription-prompt button{color:#b96a00;cursor:pointer;font:inherit;background:#fff;border:2px solid #ff9f0a;border-radius:999px;margin-top:17px;padding:11px 15px;font-size:13px;font-weight:850}.catalog-subscription-prompt button:hover,.catalog-subscription-prompt button:focus-visible{color:#fff;background:#ff9f0a}.catalog-subscription-prompt>img{object-fit:cover;object-position:70% center;width:100%;height:100%}.catalog-subscription-prompt>img.is-santi{object-fit:contain;object-position:center bottom}.catalog-rental-help{margin-top:28px}.exercise-detail-page{--rental-green:#07983c;--subscription-orange:#ff9f0a;--subscription-ink:#a85f00;max-width:1320px;padding-top:24px}.exercise-detail-nav{color:#435865;border-bottom:1px solid #dce3e8;justify-content:space-between;align-items:center;gap:20px;padding:13px 0 22px;font-size:13px;display:flex}.exercise-detail-nav a{color:var(--subject-accent);font-weight:850}.exercise-detail-nav a:hover{text-underline-offset:4px;text-decoration:underline}.exercise-detail-nav>span{text-align:right;align-items:center;gap:8px;display:flex}.exercise-detail-nav b{color:#a2b0b9}.exercise-detail-hero{border:1px solid color-mix(in srgb, var(--subject-accent) 23%, #d5dfe6);background:linear-gradient(118deg, var(--subject-wash) 0 58%, #fff 88%);border-radius:22px;margin:26px 0 22px;padding:34px 38px 36px;position:relative;overflow:hidden;box-shadow:0 10px 30px #1525360b}.exercise-detail-hero:before{content:"";background:var(--subject-accent);width:6px;position:absolute;inset:0 auto 0 0}.exercise-detail-hero .eyebrow{color:var(--subject-accent)}.exercise-detail-hero h1{max-width:950px;margin:9px 0 12px;font-size:clamp(34px,4vw,52px);line-height:1.04}.exercise-detail-hero>p{color:#405867;max-width:770px;font-size:16px;line-height:1.55}.exercise-detail-badges{flex-wrap:wrap;gap:9px;margin:21px 0 0;padding:0;list-style:none;display:flex}.exercise-detail-badges li{border:1px solid color-mix(in srgb, var(--subject-accent) 28%, #ccd8df);color:#27404e;background:#fff;border-radius:999px;padding:8px 12px 8px 30px;font-size:12px;font-weight:800;position:relative}.exercise-detail-badges li:before{content:"✓";color:var(--subject-accent);font-weight:900;position:absolute;left:11px}.exercise-detail-layout{grid-template-columns:minmax(0,1fr) minmax(330px,390px);align-items:start;gap:22px;display:grid}.exercise-detail-layout.is-unlocked{grid-template-columns:minmax(0,1fr)}.exercise-statement-card,.exercise-access-card,.exercise-detail-benefits,.exercise-sibling-nav a{background:#fff;border:1px solid #d7e1e7;box-shadow:0 8px 24px #1525360b}.exercise-statement-card{border-radius:22px;min-width:0;overflow:hidden}.exercise-statement-card>header{justify-content:space-between;align-items:flex-start;gap:22px;padding:27px 30px 20px;display:flex}.exercise-statement-card h2{margin-top:5px;font-size:clamp(24px,2.4vw,31px)}.exercise-number-chip{color:var(--subject-accent);background:var(--subject-wash);letter-spacing:.04em;text-transform:uppercase;border-radius:999px;flex:none;padding:8px 11px;font-size:11px;font-weight:850}.exercise-statement-text{white-space:pre-wrap;color:#253842;padding:0 30px 26px;font-size:16px;line-height:1.65}.exercise-statement-figure{background:linear-gradient(145deg, var(--subject-wash), #fff 70%);border-top:1px solid #e0e8ed;place-items:center;min-height:320px;margin:0;padding:24px;display:grid}.exercise-statement-figure img{object-fit:contain;width:100%;max-height:650px}.exercise-statement-original{background:#fff;gap:14px}.exercise-statement-original figcaption{color:#445863;justify-self:start;font-size:14px;font-weight:700}.exercise-statement-empty{color:#667984;text-align:center;background:#f3f6f8;border-radius:15px;margin:0 30px 30px;padding:28px}.exercise-access-card{border-radius:22px;align-self:start;position:sticky;top:98px;overflow:hidden}.exercise-access-intro{border-bottom:1px solid color-mix(in srgb, var(--subject-accent) 24%, #dae4ea);background:linear-gradient(112deg, var(--subject-wash) 0 45%, #fff 100%);align-items:center;min-height:164px;padding:25px 140px 24px 24px;display:flex;position:relative;overflow:hidden}.exercise-access-intro>div{z-index:1;position:relative}.exercise-access-intro .eyebrow{color:var(--subject-accent)}.exercise-access-intro h2{margin:7px 0 8px;font-size:26px;line-height:1.02}.exercise-access-intro p{color:#536773;font-size:13px;line-height:1.45}.exercise-access-intro img{object-fit:contain;object-position:center bottom;width:175px;height:164px;position:absolute;bottom:0;right:0}.exercise-access-intro img.is-santi{object-fit:contain;object-position:center bottom}.exercise-access-option{border:1px solid #d7e3dc;border-radius:17px;margin:16px;padding:20px}.exercise-access-option[data-mode=rental]{background:linear-gradient(145deg,#fff,#f3fbf6);border-color:#b9dfc8}.exercise-access-option[data-mode=subscription]{background:linear-gradient(145deg,#fff,#fff9ed);border-color:#f1d29b}.exercise-access-option[data-mode=pending]{background:#f4f7f8}.exercise-access-option[data-mode=unlocked]{background:linear-gradient(145deg,#fff,#fff8ea);border-color:#efcc8c}.exercise-access-kicker{color:#526975;letter-spacing:.12em;font-size:10px;font-weight:900}.exercise-access-option[data-mode=rental] .exercise-access-kicker{color:var(--rental-green)}.exercise-access-option[data-mode=subscription] .exercise-access-kicker,.exercise-access-option[data-mode=unlocked] .exercise-access-kicker{color:var(--subscription-ink)}.exercise-access-price{justify-content:space-between;align-items:flex-end;gap:14px;margin-top:9px;display:flex}.exercise-access-price strong{color:#102936;font-family:var(--heading);font-variant-numeric:tabular-nums;letter-spacing:-.04em;font-size:31px;line-height:1}.exercise-access-price span{color:#58707c;text-align:right;font-size:11px;font-weight:750}.exercise-access-option ul{gap:7px;margin:17px 0;padding:0;list-style:none;display:grid}.exercise-access-option li{color:#405864;padding-left:21px;font-size:12px;line-height:1.45;position:relative}.exercise-access-option li:before{content:"✓";color:var(--rental-green);font-weight:900;position:absolute;left:0}.exercise-access-option[data-mode=subscription] li:before,.exercise-access-option[data-mode=unlocked] li:before{color:var(--subscription-orange)}.exercise-access-option h3{margin:7px 0 5px}.exercise-access-option>p{color:#60727d;font-size:13px}.exercise-access-option a{text-align:center;border:2px solid;border-radius:999px;justify-content:center;align-items:center;min-height:46px;padding:11px 15px;font-size:13px;font-weight:850;display:flex}.exercise-access-option[data-mode=rental] a{color:#fff;border-color:var(--rental-green);background:var(--rental-green)}.exercise-access-option[data-mode=subscription] a{color:var(--subscription-ink);border-color:var(--subscription-orange);background:#fff}.exercise-access-option[data-mode=rental] a:hover,.exercise-access-option[data-mode=rental] a:focus-visible{color:var(--rental-green);background:#fff}.exercise-access-option[data-mode=subscription] a:hover,.exercise-access-option[data-mode=subscription] a:focus-visible{color:#fff;background:var(--subscription-orange)}.exercise-access-note{color:#71828b;text-align:center;margin:0 20px 20px;font-size:11px;line-height:1.45}.exercise-video-card{--access-color:var(--rental-green);--access-wash:#eefaf2;border:1px solid color-mix(in srgb, var(--access-color) 34%, #d7e1e7);background:#fff;border-radius:22px;margin-top:22px;overflow:hidden;box-shadow:0 8px 24px #1525360b}.exercise-video-card[data-access=subscription]{--access-color:var(--subscription-orange);--access-wash:#fff7e8}.exercise-video-card[data-access=owner]{--access-color:#008eaf;--access-wash:#effaff}.exercise-video-card>header{border-left:6px solid var(--access-color);background:linear-gradient(110deg, var(--access-wash), #fff 72%);justify-content:space-between;align-items:flex-start;gap:28px;padding:24px 28px;display:flex}.exercise-video-card .eyebrow{color:var(--access-color)}.exercise-video-card h2{margin:6px 0 5px;font-size:clamp(25px,2.7vw,34px)}.exercise-video-card header p{color:#506571;font-size:14px}.exercise-video-card header a{border:1px solid color-mix(in srgb, var(--access-color) 55%, #d6e0e6);color:color-mix(in srgb, var(--access-color) 78%, #263e49);border-radius:999px;flex:none;padding:10px 14px;font-size:12px;font-weight:850}.exercise-video-card header a:hover,.exercise-video-card header a:focus-visible{color:#fff;background:var(--access-color)}.exercise-video-frame{aspect-ratio:16/9;text-align:center;color:#fff;background:radial-gradient(circle at 50% 35%, color-mix(in srgb, var(--access-color) 22%, transparent), transparent 34%), linear-gradient(145deg, #173744, #0b1f29);place-content:center;place-items:center;min-height:420px;padding:34px;display:grid}.exercise-video-frame video{aspect-ratio:16/9;object-fit:contain;background:#091923;width:100%;height:100%;max-height:min(72vh,760px);display:block}.exercise-video-frame:has(video){min-height:0;padding:0;display:block}.exercise-video-play{color:#fff;background:var(--access-color);width:74px;height:74px;box-shadow:0 12px 36px color-mix(in srgb, var(--access-color) 36%, transparent);border-radius:50%;place-items:center;margin-bottom:20px;padding-left:5px;font-size:26px;display:grid}.exercise-video-frame strong{font-family:var(--heading);font-size:clamp(23px,3vw,36px)}.exercise-video-frame small{color:#bed0d8;max-width:560px;margin-top:9px;font-size:12px;line-height:1.5}.exercise-video-card>footer{color:#405965;background:var(--access-wash);flex-wrap:wrap;gap:10px 24px;padding:16px 28px;font-size:12px;font-weight:800;display:flex}.exercise-detail-benefits[data-access=subscription]{background:linear-gradient(145deg,#fff,#fffaf1);border-color:#efd5a5}.exercise-detail-benefits[data-access=subscription] article>span{color:#a85f00;background:#fff0d4}.exercise-detail-benefits[data-access=rental]{background:linear-gradient(145deg,#fff,#f4fbf6);border-color:#bde1c9}.exercise-detail-benefits[data-access=rental] article>span{color:var(--rental-green);background:#e9f8ee}.exercise-detail-benefits[data-access=owner]{background:linear-gradient(145deg,#fff,#f1fbff);border-color:#bde6f2}.exercise-detail-benefits[data-access=owner] article>span{color:#008eaf;background:#e4f7fd}.exercise-detail-benefits{border-radius:22px;margin-top:22px;padding:27px 30px 30px}.exercise-detail-benefits>header{max-width:680px}.exercise-detail-benefits h2{margin-top:5px;font-size:clamp(24px,2.5vw,32px)}.exercise-detail-benefits>div{grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-top:22px;display:grid}.exercise-detail-benefits article{background:#fbfcfd;border:1px solid #e0e8ed;border-radius:15px;grid-template-columns:28px minmax(0,1fr);gap:4px 11px;padding:18px;display:grid}.exercise-detail-benefits article>span{width:27px;height:27px;color:var(--subject-accent);background:var(--subject-wash);border-radius:50%;grid-row:1/3;place-items:center;font-weight:900;display:grid}.exercise-detail-benefits h3{color:#18313e;align-self:end;font-size:16px}.exercise-detail-benefits p{color:#5c6f7a;font-size:12px;line-height:1.45}.exercise-sibling-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:22px;display:grid}.exercise-sibling-nav a{border-radius:16px;align-content:center;min-height:92px;padding:18px 20px;transition:border-color .18s,transform .18s;display:grid}.exercise-sibling-nav a:hover{border-color:var(--subject-accent);transform:translateY(-2px)}.exercise-sibling-nav a>span{color:var(--subject-accent);letter-spacing:.1em;font-size:10px;font-weight:900}.exercise-sibling-nav a>strong{color:#1b3441;margin-top:5px;font-size:14px;line-height:1.3}.exercise-sibling-nav .is-next{text-align:right}.exercise-mobile-rental{display:none}@media (max-width:1050px){.exercise-detail-layout{grid-template-columns:minmax(0,1fr) 340px}.exercise-access-intro{padding-right:118px}.exercise-access-intro img{width:165px;right:0}}@media (max-width:850px){.exercise-detail-layout{grid-template-columns:1fr}.exercise-access-card{position:static}.exercise-detail-benefits>div{grid-template-columns:1fr}.catalog-subjects{scroll-snap-type:x proximity;scrollbar-width:none;grid-template-columns:none;grid-auto-columns:minmax(210px,72vw);grid-auto-flow:column;padding:3px 3px 16px;display:grid;overflow-x:auto}.catalog-subjects::-webkit-scrollbar{display:none}.library-topic-list::-webkit-scrollbar{display:none}.catalog-subject-option{scroll-snap-align:start;aspect-ratio:778/253;height:auto;padding:6px 8px}.library-layout{grid-template-columns:1fr}.library-topics{max-height:none;overflow:hidden}.library-subject-label,.catalog-topic-label{aspect-ratio:778/253;height:auto}.catalog-topic-label{padding:2px}.library-topic-list{scroll-snap-type:x proximity;scrollbar-width:none;grid-template-columns:none;grid-auto-columns:minmax(220px,74vw);grid-auto-flow:column;padding:3px 3px 14px;overflow-x:auto}.library-topics .library-topic-link{scroll-snap-align:start}.manage-heading{flex-direction:column;align-items:flex-start}.catalog-access-options{grid-template-columns:1fr}.catalog-access-option{min-height:0}.catalog-rental-hero{grid-template-columns:minmax(0,1fr) 210px}.catalog-rental-hero-copy{padding-left:30px}.catalog-subscription-hero{grid-template-columns:minmax(0,1fr) 230px}.catalog-subscription-hero-copy{padding-left:30px}.catalog-subscription-offer{grid-template-columns:1fr}.catalog-subscription-offer .cart-add{justify-self:start}.catalog-subscription-preview{flex-direction:column;align-items:flex-start}.catalog-plan-topic{grid-template-columns:1fr}.catalog-plan-topic-actions,.catalog-plan-topic-actions .cart-add{justify-content:flex-start}}@media (max-width:560px){.management{padding:20px 18px 45px}.exercise-detail-page{padding-bottom:110px}.exercise-detail-nav{align-items:flex-start;padding-top:4px}.exercise-detail-nav>span{display:none}.exercise-detail-hero{border-radius:18px;margin-top:18px;padding:25px 21px 27px}.exercise-detail-hero h1{font-size:32px}.exercise-detail-hero>p{font-size:14px}.exercise-detail-badges{grid-template-columns:1fr;display:grid}.exercise-statement-card,.exercise-access-card,.exercise-detail-benefits{border-radius:18px}.exercise-statement-card>header{padding:22px 20px 16px;display:grid}.exercise-number-chip{justify-self:start}.exercise-statement-text{padding:0 20px 21px;font-size:15px}.exercise-statement-figure{min-height:220px;padding:14px}.exercise-access-intro{min-height:150px;padding:22px 125px 22px 20px}.exercise-access-intro img{width:155px;height:150px;right:0}.exercise-access-option{margin:13px;padding:18px}.exercise-detail-benefits{padding:22px 18px}.exercise-video-card{border-radius:18px}.exercise-video-card>header{flex-direction:column;align-items:stretch;gap:17px;padding:22px 20px}.exercise-video-card header a{align-self:flex-start}.exercise-video-frame{min-height:250px;padding:24px 18px}.exercise-video-play{width:60px;height:60px;margin-bottom:15px;font-size:21px}.exercise-video-card>footer{gap:8px;padding:15px 20px;display:grid}.exercise-sibling-nav{grid-template-columns:1fr}.exercise-sibling-nav>span[aria-hidden=true]{display:none}.exercise-sibling-nav .is-next{text-align:left}.exercise-mobile-rental{z-index:40;color:#fff;background:var(--rental-green);border:2px solid #fff;border-radius:18px;justify-content:space-between;align-items:center;gap:15px;min-height:58px;padding:13px 18px;font-size:13px;font-weight:800;display:flex;position:fixed;bottom:14px;left:14px;right:14px;box-shadow:0 12px 35px #102b3b4d}.exercise-mobile-rental strong{font-family:var(--heading);font-size:21px}.manage-stats{gap:8px}.manage-stats button{padding:16px 10px}.manage-stats strong{font-size:28px}.manage-panel{padding:20px}.management .section-heading{flex-direction:column;align-items:flex-start}.admin-search{width:100%;min-width:0}.library-exercises{grid-template-columns:1fr}.catalog-access-heading h2,.catalog-mode-heading h2{font-size:24px}.catalog-access-option{border-radius:15px;grid-template-columns:42px minmax(0,1fr);padding:15px}.catalog-access-icon{border-radius:12px;width:42px;height:42px}.catalog-access-icon svg{width:26px;height:26px}.catalog-rental-section,.catalog-subscription-section{border-radius:18px;padding:20px 16px}.catalog-rental-hero{border-radius:18px 18px 0 0;grid-template-columns:1fr;min-height:0;margin:-20px -16px 22px}.catalog-rental-hero-copy{padding:27px 22px 10px}.catalog-rental-hero-copy h2{font-size:27px}.catalog-rental-promises{grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.catalog-rental-promises li{border-radius:14px;align-items:center;min-height:46px;display:flex}.catalog-rental-portrait{height:240px}.catalog-rental-portrait img{object-fit:contain;object-position:center bottom}.catalog-subscription-hero{border-radius:18px 18px 0 0;grid-template-columns:1fr;min-height:0;margin:-20px -16px 22px}.catalog-subscription-hero-copy{padding:27px 22px 22px}.catalog-subscription-hero-copy h2{font-size:28px}.catalog-subscription-offer .cart-add button{width:100%}.catalog-plan-extra{grid-template-columns:1fr}.catalog-plan-topics-heading{flex-direction:column;align-items:flex-start}.catalog-plan-topic-actions{flex-direction:column;align-items:stretch}.catalog-plan-topic-actions .cart-add,.catalog-plan-topic-actions .cart-add button,.catalog-subscription-preview button{width:100%}.catalog-subscription-portrait{height:270px}.catalog-subscription-portrait img{object-position:56% 40%;height:100%}.catalog-subscription-portrait img.is-santi{object-position:center bottom;width:100%;max-width:100%;left:0}.library-exercise{grid-template-rows:178px minmax(0,1fr)}.library-exercise[data-format=complete-class]{grid-template-rows:190px minmax(0,1fr);grid-template-columns:1fr}.library-exercise[data-format=complete-class] .library-exercise-visual{border-bottom:1px solid #dce6ec;border-right:0}.library-exercise[data-format=complete-class] .library-exercise-copy{padding:19px}.library-exercise-copy{padding:17px}.library-exercise-title{font-size:20px}.catalog-subscription-prompt{background:#fff9eb;grid-template-columns:1fr}.catalog-subscription-prompt>div{padding:24px 20px 8px}.catalog-subscription-prompt>img{object-fit:contain;object-position:center bottom;background:0 0;height:190px}.catalog-subscription-prompt>img.is-santi{object-fit:contain;object-position:center bottom}.catalog-subscriber-previewbar{flex-direction:column;align-items:stretch}.catalog-subscriber-previewbar button{width:100%}.catalog-commercial-cta{flex-direction:column;align-items:stretch;padding:18px}.catalog-commercial-cta a{text-align:center}.manage-nav>div{flex-direction:column;align-items:flex-end;gap:10px}}.access-page{background:#edf3f6;place-items:center;min-height:100vh;padding:32px 20px 90px;display:grid}.access-card{background:#fff;border:1px solid #dce5eb;border-radius:22px;width:min(100%,500px);padding:42px;box-shadow:0 20px 80px #182c3910}.access-card>img{width:145px;margin-bottom:38px}.access-card h1{letter-spacing:-1px;font-size:clamp(28px,4vw,36px);line-height:1.2}.access-card p{color:#53616b;line-height:1.6}.access-card label{gap:9px;margin:22px 0;font-size:16px;display:grid}.access-card input{width:100%;font:inherit;color:#17252f;background:#fff;border:1px solid #aabac5;border-radius:8px;padding:13px}.access-card .button{width:100%;margin-top:25px}.access-card small,.access-card .access-note{color:#53616b;font-size:14px}.access-card button:disabled{opacity:.6;cursor:wait}@media (max-width:560px){.access-card{padding:28px 22px}}.management .focus-search-form{max-width:850px;margin:20px 0 30px}.management .focus-search-form label{margin-bottom:8px;display:block}.management .focus-search-form>div{gap:12px;display:flex}.management .focus-search-form input{background:#fff;border:1px solid #c3cbd2;border-radius:12px;width:100%;min-width:0;padding:15px}.management .focus-search-form button{color:#002232;background:#00b2dd;border-radius:12px;flex:none;gap:9px;padding:14px 24px;font-size:17px}.management .focus-search-form button:hover{background:#139cc2}.search-count{margin:25px 0}.search-results{gap:15px;display:grid}.search-result{margin:0;display:block}.search-result h2{margin:10px 0}.search-result:hover{border-color:#239dc0}.search-pagination{justify-content:center;align-items:center;gap:25px;margin:30px 0;display:flex}.physics-tracks{flex-wrap:wrap;gap:8px;margin:20px 0;display:flex}.library-topics .physics-tracks a{border-radius:20px;padding:6px 10px;font-size:13px}.landing-editor{max-width:1250px;margin:auto;padding-bottom:90px}.landing-editor fieldset{border:0;min-width:0;margin:0;padding:0}.free-editor-search{max-width:760px;margin:20px 0 26px}.free-editor-search>label{margin-bottom:8px;font-weight:700;display:block}.free-editor-search-row{gap:10px;display:flex}.free-editor-search-input{flex:1;min-width:0;position:relative}.free-editor-search-input>input{color:#17212b;width:100%;font:16px/1.4 var(--body);background:#fff;border:1px solid #c2cbd3;border-radius:10px;padding:13px 15px}.free-editor-search-row>button{flex:none;align-items:center;gap:8px;display:inline-flex}.free-editor-search-results{z-index:30;background:#fff;border:1px solid #bddce8;border-radius:12px;max-height:320px;padding:6px;position:absolute;top:calc(100% + 5px);left:0;right:0;overflow-y:auto;box-shadow:0 15px 30px #102c4540}.free-editor-search-results button{color:#17212b;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:8px;width:100%;padding:10px 12px;display:block}.free-editor-search-results button:hover,.free-editor-search-results button:focus-visible,.free-editor-search-results button.is-active{background:#e7f8fd}.free-editor-search-results strong,.free-editor-search-results span{display:block}.free-editor-search-results span{color:#526b7a;margin-top:3px;font-size:13px}.free-editor-search-results p{color:#526b7a;margin:7px}.landing-editor-topic-picker{background:#f1fbfe;border:1px solid #c7e7f1;border-radius:15px;margin-bottom:25px;padding:20px}.landing-editor-topic-picker h3{margin:0 0 8px}.landing-editor-topic-picker p{color:#496477;margin:0}.landing-editor-topic-picker .free-editor-search{margin-bottom:0}.landing-editor-exercise-overlay{z-index:1000;background:#102b3bcc;padding:20px;position:fixed;inset:0;overflow-y:auto}.landing-editor-exercise-overlay>.free-editor{background:#f7f8fa;border-radius:18px;max-width:1160px;min-height:100%;padding:24px 35px 65px;box-shadow:0 20px 60px #0003}@media (max-width:600px){.free-editor-search-row{flex-wrap:wrap}.free-editor-search-row>button{justify-content:center;width:100%}.landing-editor-exercise-overlay{padding:0}.landing-editor-exercise-overlay>.free-editor{border-radius:0;padding:16px 18px 50px}}.landing-editor-toolbar{z-index:20;background:#f7f8faf5;border-bottom:1px solid #dfe5e9;align-items:center;gap:12px;padding:16px 0;display:flex;position:sticky;top:0}.landing-editor-toolbar>span{margin-right:auto;font-size:14px}.landing-editor-hint{color:#596873;max-width:850px;margin:20px 0}.landing-editor-section{margin-bottom:18px}.landing-editor-section>summary{cursor:pointer;font-size:21px;font-weight:700}.landing-editor-section[open]>summary{margin-bottom:24px}.landing-editor-fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.landing-editor-fields label{flex-direction:column;gap:8px;font-size:14px;display:flex}.landing-editor-fields input:not([type=file]),.landing-editor-fields textarea{width:100%;min-width:0;font:16px/1.5 var(--body);color:#17212b;background:#fff;border:1px solid #c2cbd3;border-radius:9px;padding:12px}.landing-editor-fields textarea{resize:vertical}.landing-editor-equation{min-width:0}.landing-editor-equation label{flex-direction:column;gap:8px;display:flex}.landing-editor-equation small{color:#596873;margin-top:8px;display:block}.landing-editor-math-preview{background:#f3fbff;border:1px solid #bddce8;border-radius:12px;min-width:0;max-width:100%;margin-top:14px;padding:14px}.landing-editor-math-preview>strong{color:#12668d;margin-bottom:10px;font-size:13px;display:block}.landing-editor-math-preview .focus-equation-math{max-width:100%;font-size:18px;overflow-x:auto}.landing-editor-math-error{color:#a33131;margin:8px 0 0}.landing-editor-wide,.landing-editor-nested{grid-column:1/-1}.landing-editor-image{background:#edf0f3;border-radius:12px;min-width:0;padding:15px}.landing-editor-image>label{margin-bottom:10px;display:block}.landing-editor-image img{object-fit:contain;background:#26384b;border-radius:8px;max-width:100%;height:150px;margin-bottom:12px}.landing-editor-image input{max-width:100%;font-size:13px}.landing-editor-image small{color:#566673;margin-top:12px;display:block}.landing-editor-image-empty{color:#566673;margin:0 0 12px}.landing-editor-remove-image,.landing-editor-add{color:#07576e;font:inherit;cursor:pointer;background:#fff;border:1px solid #1888ab;border-radius:9px;padding:9px 13px;display:inline-block}.landing-editor-remove-image{margin-top:12px}.landing-editor-add{margin-top:18px}.landing-editor-item{border:1px solid #dbe2e7;border-radius:14px;margin-top:18px;padding:20px}.landing-editor-item-title{justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;display:flex}.landing-editor-item-title h3{font-size:18px}.landing-editor-item-title>div{flex-shrink:0;gap:8px;display:flex}.landing-editor-item-title button{background:#fff;border:1px solid #b5c6d2;border-radius:8px;padding:7px 12px;font-size:13px}.landing-editor-bottom{align-items:center;gap:25px;margin-top:25px;display:flex}.landing-editor button:disabled{opacity:.5;cursor:not-allowed}@media (max-width:760px){.landing-editor-fields{grid-template-columns:1fr}.landing-editor-toolbar{flex-wrap:wrap}.landing-editor-toolbar>span{width:100%;margin:0}.landing-editor-item{padding:14px}.landing-editor-item-title{flex-direction:column;align-items:flex-start;gap:12px}.landing-editor-bottom{flex-direction:column;align-items:flex-start}.search-pagination{gap:15px}.management .focus-search-form>div{gap:8px}.management .focus-search-form button{padding-inline:15px}.landing-editor .manage-nav>div{flex-wrap:wrap}}
.site-header{z-index:40;color:#fff;background:#000;height:100px;font:700 14px/1.4 FocusNexa,Arial,sans-serif;position:relative}.site-header__inner{grid-template-columns:225px minmax(0,1fr) auto 130px;align-items:center;gap:18px;width:min(1220px,100% - 40px);height:100%;margin-inline:auto;display:grid}.site-header__brand{flex:0 0 225px;display:block}.site-header__brand img{object-fit:contain;width:100%;height:auto;display:block}.site-header__desktop{white-space:nowrap;justify-content:center;align-items:center;gap:clamp(14px,1.35vw,20px);display:flex}.site-header a{color:#fff;text-decoration:none}.site-header__desktop a:hover,.site-header__mobile nav a:hover,.site-header__search summary:hover{color:#00b2dd}.site-header nav>a[aria-current=page]{color:#54d7f2}.site-header__desktop>a[aria-current=page]{text-underline-offset:9px;-webkit-text-decoration:underline #00b2dd;text-decoration:underline #00b2dd;text-decoration-thickness:3px}.site-header a:focus-visible,.site-header summary:focus-visible,.site-header__search input:focus-visible,.site-header__search button:focus-visible{outline-offset:4px;outline:3px solid #00b2dd}.site-header__search{position:static}.site-header__search>summary{cursor:pointer;white-space:nowrap;list-style:none}.site-header__search>summary::-webkit-details-marker{display:none}.site-header__search[open]>summary{color:#00b2dd}.site-header__search-panel{z-index:50;background:#07131a;border-top:1px solid #173746;padding:22px 20px 25px;position:absolute;top:100%;left:0;right:0;box-shadow:0 14px 30px #0005}.site-header__search-panel form{width:min(720px,100%);margin:auto}.site-header__search-panel label{color:#fff;margin-bottom:8px;font-size:14px;display:block}.site-header__search-panel form>div{grid-template-columns:minmax(0,1fr) 118px;gap:10px;display:grid}.site-header__search-panel input,.site-header__search-panel button{min-height:48px;font:600 15px/1.2 var(--body);border:0;border-radius:12px}.site-header__search-panel input{color:#132631;background:#fff;width:100%;padding:0 17px}.site-header__search-panel button{cursor:pointer;color:#082531;background:#00b2dd;font-weight:700}.site-header__login{background:#00b2dd;border-radius:100px;flex:0 0 130px;place-items:center;height:40px;font-size:16px;display:grid;color:#082531!important}.site-header__login:hover{filter:brightness(.92)}.site-header__cart{white-space:nowrap;border:1px solid #3b879b;border-radius:999px;justify-content:center;align-items:center;gap:7px;min-height:40px;padding:0 11px;font-size:12px;display:inline-flex}.site-header__cart strong{color:#082531;background:#00b2dd;border-radius:50%;place-items:center;min-width:21px;height:21px;padding:0 4px;font-size:11px;display:grid}.site-header__cart:hover,.site-header__cart[aria-current=page]{background:#113843;border-color:#00b2dd}.site-header__cart svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:19px;height:19px;display:none}.site-header__mobile{display:none}@media (max-width:1160px){.site-header{height:76px}.site-header__inner{gap:8px;width:calc(100% - 36px);display:flex}.site-header__brand{flex-basis:125px}.site-header__desktop{display:none}.site-header__login{flex-basis:70px;height:36px;font-size:10px}.site-header__cart{flex:0 0 50px;min-height:36px;margin-left:auto;padding:0 5px}.site-header__cart>span{display:none}.site-header__cart svg{display:block}.site-header__cart strong{min-width:17px;height:17px;font-size:10px}.site-header__mobile{display:block}.site-header__mobile>summary{cursor:pointer;width:40px;height:44px;font:26px/1 var(--body);place-items:center;list-style:none;display:grid}.site-header__mobile>summary::-webkit-details-marker{display:none}.site-header__mobile>nav{background:#000;border-bottom:1px solid #254352;max-height:calc(100dvh - 76px);padding:14px 24px 20px;display:grid;position:absolute;top:76px;left:0;right:0;overflow-y:auto}.site-header__mobile nav a{align-items:center;min-height:48px;font-size:15px;display:flex}.site-header__mobile nav>a[aria-current=page]{background:#0d2029;border-left:3px solid #00b2dd;margin-inline:-12px;padding-inline:12px}.site-header__mobile .site-header__search{border-top:1px solid #173746}.site-header__mobile .site-header__search>summary{align-items:center;min-height:48px;font-size:15px;display:flex}.site-header__mobile .site-header__search-panel{box-shadow:none;margin:0 -24px -20px;padding:16px 24px 22px;position:static}.site-header__search-panel form>div{grid-template-columns:1fr}.sidebar{top:76px}}@media (min-width:1161px){.sidebar{top:100px}}@media (max-width:360px){.site-header__inner{gap:8px}.site-header__brand{flex-basis:110px}.site-header__login{flex-basis:65px}.site-header__cart{gap:4px}}
.cart-add{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.cart-add button{color:#006f8b;cursor:pointer;background:#eaf9fd;border:1px solid #00a9d1;border-radius:999px;min-height:42px;padding:9px 16px;font:800 13px/1.2 FocusNexa,Arial,sans-serif}.cart-add button[aria-pressed=true]{color:#05743a;background:#e8f8ed;border-color:#93d8ab}.cart-add button:disabled{opacity:.55;cursor:not-allowed}.cart-add a{color:#007c9e;font:800 13px/1.2 FocusNexa,Arial,sans-serif;text-decoration:none}.cart-add small{color:#637f8c;font-size:12px}.cart-add button:focus-visible,.cart-add a:focus-visible{outline-offset:3px;outline:3px solid #00b2dd}
@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(../media/KaTeX_AMS-Regular.25ieegmnh38ts.woff2)format("woff2"),url(../media/KaTeX_AMS-Regular.10y3kupq4t663.woff)format("woff"),url(../media/KaTeX_AMS-Regular.418dr7cz3fo2x.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(../media/KaTeX_Caligraphic-Bold.06b-ya9t43ioz.woff2)format("woff2"),url(../media/KaTeX_Caligraphic-Bold.2vmk2hva4ctha.woff)format("woff"),url(../media/KaTeX_Caligraphic-Bold.40ltxhe834pns.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(../media/KaTeX_Caligraphic-Regular.2eph4dlhid_m9.woff2)format("woff2"),url(../media/KaTeX_Caligraphic-Regular.3gxeetazf831f.woff)format("woff"),url(../media/KaTeX_Caligraphic-Regular.07-7u27-nhn_r.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(../media/KaTeX_Fraktur-Bold.2sasz-d-jtw8y.woff2)format("woff2"),url(../media/KaTeX_Fraktur-Bold.1alcy76__wdj2.woff)format("woff"),url(../media/KaTeX_Fraktur-Bold.19yqa_tc9d_gx.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(../media/KaTeX_Fraktur-Regular.2d10y4xmjvzlf.woff2)format("woff2"),url(../media/KaTeX_Fraktur-Regular.110oo81prr9n5.woff)format("woff"),url(../media/KaTeX_Fraktur-Regular.2qhy34r6a05dn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(../media/KaTeX_Main-Bold.3-rowy8o6_4ky.woff2)format("woff2"),url(../media/KaTeX_Main-Bold.0v1esh257kqpe.woff)format("woff"),url(../media/KaTeX_Main-Bold.0us_n0tnxlxu7.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(../media/KaTeX_Main-BoldItalic.14r2naom8mrec.woff2)format("woff2"),url(../media/KaTeX_Main-BoldItalic.13355ck5zr48q.woff)format("woff"),url(../media/KaTeX_Main-BoldItalic.3x_u9cepaced0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(../media/KaTeX_Main-Italic.0lig0v9j0700p.woff2)format("woff2"),url(../media/KaTeX_Main-Italic.0afv392dj4w59.woff)format("woff"),url(../media/KaTeX_Main-Italic.2hkw3230mfwcv.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(../media/KaTeX_Main-Regular.1ryvsdzh2w1_e.woff2)format("woff2"),url(../media/KaTeX_Main-Regular.15u8r3b2y7fv4.woff)format("woff"),url(../media/KaTeX_Main-Regular.0symfa7dqj6jd.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(../media/KaTeX_Math-BoldItalic.1oopuu636h4il.woff2)format("woff2"),url(../media/KaTeX_Math-BoldItalic.12pl58orkw9rg.woff)format("woff"),url(../media/KaTeX_Math-BoldItalic.0y5w36a5aq__2.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(../media/KaTeX_Math-Italic.32405s1aq8vas.woff2)format("woff2"),url(../media/KaTeX_Math-Italic.0w0b1ugh62cfr.woff)format("woff"),url(../media/KaTeX_Math-Italic.2vkekfblmz5nb.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(../media/KaTeX_SansSerif-Bold.0h3wi2z_eouyg.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Bold.1ovw5p-yjp56g.woff)format("woff"),url(../media/KaTeX_SansSerif-Bold.2d03q85pwxpti.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(../media/KaTeX_SansSerif-Italic.0wkjc4dm2kcit.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Italic.1qavw__2zz8gk.woff)format("woff"),url(../media/KaTeX_SansSerif-Italic.3i-q087b23-m8.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(../media/KaTeX_SansSerif-Regular.2peiewu59z3d-.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Regular.1i4afx8nk8n4r.woff)format("woff"),url(../media/KaTeX_SansSerif-Regular.31pbu25feko_c.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(../media/KaTeX_Script-Regular.11h14300o9pd0.woff2)format("woff2"),url(../media/KaTeX_Script-Regular.3110jb9c-bxna.woff)format("woff"),url(../media/KaTeX_Script-Regular.28p_x7iz71ofe.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size1-Regular.03lhvx36ekcou.woff2)format("woff2"),url(../media/KaTeX_Size1-Regular.1slf4bh0hc6vm.woff)format("woff"),url(../media/KaTeX_Size1-Regular.1y57-ck23ey8c.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size2-Regular.14s5gg-puz6h-.woff2)format("woff2"),url(../media/KaTeX_Size2-Regular.0-kwyvx03omo8.woff)format("woff"),url(../media/KaTeX_Size2-Regular.2u0s-b07k2o9m.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size3-Regular.1n1rgzz84z8r9.woff2)format("woff2"),url(../media/KaTeX_Size3-Regular.04o9a_02gu_e8.woff)format("woff"),url(../media/KaTeX_Size3-Regular.1pkn-dge4q0fv.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size4-Regular.2sgotkdv3dcyv.woff2)format("woff2"),url(../media/KaTeX_Size4-Regular.3p2r1l7xmebxv.woff)format("woff"),url(../media/KaTeX_Size4-Regular.2uelkfk2yna5e.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(../media/KaTeX_Typewriter-Regular.11gr2d2wuwz77.woff2)format("woff2"),url(../media/KaTeX_Typewriter-Regular.12f8myjij3617.woff)format("woff"),url(../media/KaTeX_Typewriter-Regular.3nee9kjfy6nm8.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.7"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .reflectbox{display:inline-block;transform:scaleX(-1)}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}