:root{--blue:#1865f2;--blue-dark:#1453c8;--link-hover:#1865f2;--tint:#eef4ff;--ink:#21242c;--gray:#5f6368;--line:#e0e0e0;--sborder:#909296;--bg-soft:#f7f8fa;--footer-bg:#0b2149;--footer-text:#8295ba;--gold:#ffb100;--green:#14bf96;--m-dominado:#594094;--m-proficiente:#948ebe;--m-familiar:#d77d0f;--m-tentativa:#c66024;--m-naoiniciado:#909296;--m-teste:#ededee;--ok:#0a8168;--danger:#e5484d;--serif:"Source Serif 4","Source Serif Pro",Georgia,serif;--sans:"Lato","Noto Sans",Helvetica,Arial,sans-serif;--fs-display:40px;--lh-display:1.1;--fs-h1:36px;--lh-heading:1.15;--fs-h2:30px;--fs-h3:22px;--fs-lead:18px;--fs-body:16px;--fs-small:14px;--fs-xsmall:13px;--fw-regular:400;--fw-bold:700;--fw-black:900;--container:928px;--pad-page:24px;--header-h:60px;--r-sm:4px;--r-md:8px;--r-lg:12px;--r-pill:20px;--shadow-card:0 1px 3px rgba(0,0,0,.08);--shadow-card-hover:0 6px 20px rgba(0,0,0,.12);--shadow-dropdown:0 8px 30px rgba(0,0,0,.16);--shadow-modal:0 20px 60px rgba(0,0,0,.3);--t-fast:.1s ease-in-out;--t-default:.15s ease}*{box-sizing:border-box;margin:0;padding:0}body,html{overflow-x:hidden}body{font-family:var(--sans);color:var(--ink);background:#fff;line-height:1.5;-webkit-font-smoothing:antialiased;padding-top:var(--header-h)}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font-family:inherit;cursor:pointer;border:none;background:none}.wrap{max-width:var(--container);margin:0 auto;padding:0 var(--pad-page)}.chev{width:16px;height:16px;flex-shrink:0}.btn-signup{background:var(--blue);color:#fff!important;border-radius:var(--r-sm);padding:0 16px;height:40px;font-weight:var(--fw-bold);font-size:15px;white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;transition:background-color var(--t-fast),box-shadow var(--t-fast)}.btn-signup:hover{background:var(--blue-dark);box-shadow:0 0 0 2px #fff,0 0 0 4px var(--blue)}header.k-head{position:fixed;top:0;left:0;right:0;z-index:200;height:var(--header-h);background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center}.head-inner{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--pad-page);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;grid-gap:16px;gap:16px}.head-left{justify-self:start;display:flex;align-items:center;gap:10px;min-width:0}.explore-wrap{position:relative;flex-shrink:0}.explore{display:flex;align-items:center;gap:6px;color:var(--blue);font-weight:var(--fw-bold);font-size:16px;padding:8px 6px;border-radius:2px}.explore .chev{transition:.2s}.explore-wrap.open .explore .chev{transform:rotate(180deg)}.k-search{position:relative;width:220px;max-width:100%}.k-search .mag{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--blue);line-height:0}.k-search input{width:100%;height:40px;border:1px solid var(--sborder);border-radius:var(--r-sm);padding:0 16px 0 44px;font-size:15px;font-weight:var(--fw-bold);font-family:var(--sans);outline:none;color:var(--blue);background:#fff}.k-search input::placeholder{color:var(--blue);font-weight:var(--fw-bold);opacity:1}.k-search input:focus{outline:2px solid var(--blue);outline-offset:2px;box-shadow:0 0 0 2px #fff}.k-logo{justify-self:center;display:flex;align-items:center;gap:8px;white-space:nowrap}.k-logo img{height:30px;width:auto}.k-logo .word{font-size:19px;color:var(--ink);letter-spacing:.3px;transition:color var(--t-fast)}.k-logo .word b{font-weight:var(--fw-black)}.k-logo .word span{font-weight:var(--fw-regular)}.k-logo:hover .word{color:var(--blue)}.head-right{justify-self:end;gap:32px}.head-right,.head-right .link{display:flex;align-items:center}.head-right .link{color:var(--blue);font-weight:var(--fw-bold);font-size:16px;padding:6px 0;gap:5px;border-radius:2px;background:none;border:none;cursor:pointer;font-family:inherit}.head-right .link:hover{text-decoration:underline;text-underline-offset:.2rem}.ext{font-size:12px}.hamb{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:var(--r-sm)}.hamb span{width:22px;height:2px;background:var(--blue);border-radius:2px;transition:transform .2s,opacity .2s}.hamb:hover{background:var(--tint)}.hamb.open span:first-child{transform:translateY(7px) rotate(45deg)}.hamb.open span:nth-child(2){opacity:0}.hamb.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.m-search{display:none;width:40px;height:40px;align-items:center;justify-content:center;color:var(--blue);border-radius:var(--r-sm)}.m-search:hover{background:var(--tint)}.explore-menu{display:none;position:absolute;top:52px;left:0;width:330px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-dropdown);padding:8px;z-index:300}.explore-wrap.open .explore-menu{display:block}.explore-menu a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:6px;font-size:15px;font-weight:var(--fw-regular);color:var(--ink)}.explore-menu a:hover{background:var(--tint)}.explore-menu a .ic{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff}.mobile-menu{display:none;position:fixed;top:var(--header-h);left:0;right:0;bottom:0;height:calc(100vh - var(--header-h));overflow-y:auto;background:#fff;box-shadow:0 12px 30px rgba(0,0,0,.14);z-index:190;padding:4px 16px 24px}.mobile-menu.open{display:block}.mobile-menu a.mm-link{display:block;padding:15px 4px;font-size:17px;font-weight:var(--fw-bold);color:var(--blue)}.mobile-menu a.mm-link:hover{text-decoration:underline;text-underline-offset:.2rem}.mm-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px 4px;border-top:1px solid var(--line);font-size:14px;font-weight:var(--fw-bold);text-transform:uppercase;letter-spacing:.3px;color:var(--ink);cursor:pointer;width:100%;text-align:left;background:none}.mm-row .chev{color:var(--gray)}.mm-list{margin-top:2px}.breadcrumb{max-width:var(--container);margin:0 auto;padding:18px var(--pad-page) 0;font-size:14px;color:var(--gray)}.breadcrumb a{color:var(--blue);font-weight:var(--fw-bold)}.breadcrumb a:hover{text-decoration:underline;text-underline-offset:.15rem}.breadcrumb .sep{margin:0 8px;color:#b6bcc2}.icon-badge{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff;background:var(--gold)}.subjects-section{background:var(--bg-soft);padding:32px 0 44px}.subjects{max-width:var(--container);margin:0 auto;padding:0 var(--pad-page);column-count:2;column-gap:48px}.acc{page-break-inside:avoid;break-inside:avoid;border-bottom:1px solid #dcdfe3}.acc,.acc-head{background:transparent}.acc-head{display:flex;align-items:center;gap:12px;padding:16px 4px;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;width:100%;text-align:left}.acc-head:hover h3{color:var(--blue)}.acc-head .sic{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff;background:var(--gold)}.acc-head h3{font-size:16px;font-weight:var(--fw-bold);flex:1 1;transition:color var(--t-fast)}.acc-head .chev{color:var(--gray);transition:.2s}.acc.open .acc-head .chev{transform:rotate(180deg)}.acc-body{display:none;padding:0 4px 14px 46px}.acc.open .acc-body{display:block}.acc-body .items{display:grid;grid-template-columns:1fr 1fr;grid-gap:0 20px;gap:0 20px}.acc-body a{display:block;padding:8px 0;font-size:15px;color:var(--blue)}.acc-body a:hover{text-decoration:underline;text-underline-offset:3px}.linklike{background:none;border:none;padding:0;margin:0;font:inherit;color:var(--blue);cursor:pointer;text-align:left}.linklike:hover{text-decoration:underline;text-underline-offset:.2rem}.acc-body .items .linklike{display:block;padding:8px 0;font-size:15px;width:100%}.have-acc .linklike{font-weight:700}.auth-wrap{max-width:1000px;margin:0 auto;padding:48px 24px;display:grid;grid-template-columns:1fr 1fr;grid-gap:56px;gap:56px;align-items:center;min-height:calc(100vh - 65px - 340px)}.auth-illus{position:relative}.auth-illus img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:center top;display:block;border-radius:16px;box-shadow:0 14px 40px rgba(0,0,0,.15)}.auth-illus .tip{margin-top:20px;color:var(--gray);font-size:15px;line-height:1.6}.auth-illus .tip b{color:var(--ink)}.auth-form h1{font-family:var(--serif);font-size:30px;font-weight:700;margin-bottom:22px}.social-primary{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;height:48px;border:1px solid var(--sborder);border-radius:6px;background:#fff;font-weight:700;font-size:16px;color:var(--ink);cursor:pointer}.social-primary:hover{background:var(--bg-soft)}.social-primary[disabled]{opacity:.55;cursor:not-allowed}.social-row{display:flex;gap:12px;margin-top:12px}.social-row button{flex:1 1;height:48px;border:1px solid var(--sborder);border-radius:6px;background:#fff;font-size:18px;cursor:pointer}.social-row button:hover{background:var(--bg-soft)}.divider{display:flex;align-items:center;gap:12px;color:var(--gray);font-size:13px;margin:20px 0}.divider:after,.divider:before{content:"";height:1px;background:var(--line);flex:1 1}.field{margin-bottom:16px}.field .lab{display:flex;justify-content:space-between;font-size:14px;font-weight:700;margin-bottom:6px}.field .req{color:var(--gray);font-weight:400}.field .hint{font-size:12px;color:var(--gray);margin-bottom:6px}.field input,.field select{width:100%;height:44px;border:1px solid var(--sborder);border-radius:6px;padding:0 14px;font-size:15px;font-family:var(--sans);outline:none}.field input:focus,.field select:focus{border-color:var(--blue);box-shadow:0 0 0 2px rgba(24,101,242,.25)}.field.invalid input{border-color:var(--danger)}.field .err{color:var(--danger);font-size:13px;margin-top:6px}.pwd-wrap{position:relative}.pwd-wrap input{padding-right:44px}.pwd-toggle{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:32px;height:32px;border:none;background:none;cursor:pointer;color:var(--gray);font-size:16px}.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;margin-bottom:16px}.check-row input{width:18px;height:18px;margin-top:2px}.auth-submit{width:100%;height:48px;border-radius:6px;font-size:16px;font-weight:700;background:var(--blue);color:#fff;border:none;cursor:pointer;transition:background-color var(--t-fast)}.auth-submit:hover:not([disabled]){background:var(--blue-dark)}.auth-submit[disabled]{background:#e2e5e9;color:var(--gray);cursor:not-allowed}.auth-notice{background:#fff8e1;border:1px solid #ffe08a;color:#7a5b00;font-size:13px;border-radius:8px;padding:10px 12px;margin-bottom:18px}.auth-msg{border-radius:8px;padding:12px 14px;font-size:14px;margin-bottom:16px}.auth-msg.err{background:#fdecec;color:#9b1c1f;border:1px solid #f5c2c3}.auth-msg.ok{background:#eafaf0;color:#0a6b52;border:1px solid #bfe8d5}.auth-foot{font-size:14px;margin-top:18px;color:var(--gray)}.auth-foot .linklike,.auth-foot a{color:var(--blue);font-weight:700}.auth-links{display:flex;gap:16px;margin-top:8px;flex-wrap:wrap}@media(max-width:760px){.auth-wrap{grid-template-columns:1fr;gap:32px}.auth-illus{display:none}}.statepage{max-width:560px;margin:0 auto;padding:80px 24px;text-align:center;min-height:calc(100vh - var(--header-h) - 200px);display:flex;flex-direction:column;align-items:center;justify-content:center}.statepage .sp-emoji{font-size:56px;margin-bottom:16px}.statepage h1{font-family:var(--serif);font-size:32px;font-weight:700;margin-bottom:10px}.statepage p{color:var(--gray);font-size:16px;line-height:1.6;margin-bottom:26px}.statepage .sp-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.statepage .sp-secondary{display:inline-flex;align-items:center;height:40px;padding:0 16px;border:1px solid var(--sborder);border-radius:var(--r-sm);font-weight:700;font-size:15px;color:var(--ink);background:#fff;cursor:pointer}.statepage .sp-secondary:hover{background:var(--bg-soft)}.spinner{width:40px;height:40px;border-radius:50%;border:4px solid var(--line);border-top-color:var(--blue);animation:sp-rot .8s linear infinite;margin-bottom:16px}@keyframes sp-rot{to{transform:rotate(1turn)}}.user-menu{position:relative}.avatar{width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;font-size:14px;display:flex;align-items:center;justify-content:center;cursor:pointer;border:none}.avatar:hover{background:var(--blue-dark)}.avatar:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.user-dropdown{display:none;position:absolute;top:50px;right:0;width:240px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow-dropdown);padding:8px;z-index:300}.user-menu.open .user-dropdown{display:block}.user-head{padding:10px 12px 12px;border-bottom:1px solid var(--line);margin-bottom:6px}.user-head b{display:block;font-size:15px}.user-head span{font-size:13px;color:var(--gray)}.user-dropdown a,.user-dropdown button{display:block;width:100%;text-align:left;padding:10px 12px;border-radius:6px;font-size:15px;color:var(--ink);background:none;border:none;cursor:pointer;font-family:inherit}.user-dropdown a:hover,.user-dropdown button:hover{background:var(--tint);color:var(--blue)}.user-dropdown .danger{color:var(--danger)}.user-dropdown .danger:hover{background:#fdecec;color:var(--danger)}.user-sep{height:1px;background:var(--line);margin:6px 4px}.nav-inline{display:flex;align-items:center;gap:22px}.nav-inline a{color:var(--ink);font-weight:700;font-size:15px}.nav-inline a:hover{color:var(--blue)}@media(max-width:760px){.nav-inline{display:none}}.busca-wrap{max-width:var(--container);margin:0 auto;padding:32px 24px 60px}.busca-box{display:flex;align-items:center;gap:10px;border:1px solid var(--sborder);border-radius:8px;padding:0 14px;height:52px;color:var(--blue)}.busca-box:focus-within{border-color:var(--blue);box-shadow:0 0 0 2px rgba(24,101,242,.25)}.busca-box input{flex:1 1;border:none;outline:none;font-size:17px;font-family:var(--sans);color:var(--ink);background:none}.busca-hint{color:var(--gray);font-size:15px;margin-top:20px}.busca-count{color:var(--gray);font-size:14px;margin:22px 0 12px}.busca-results{list-style:none}.result-card{display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--line);border-radius:8px;margin-bottom:10px;color:inherit;transition:var(--t-fast)}.result-card:hover{border-color:var(--blue);background:var(--bg-soft)}.result-tag{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;padding:4px 8px;border-radius:20px;flex-shrink:0}.result-tag.curso{background:#eafaf0;color:var(--green)}.result-tag.aula{background:#e7f0ff;color:var(--blue)}.result-tag.exercicio{background:#fff4e0;color:#c98a00}.result-title{font-weight:700;font-size:15px}.result-course{margin-left:auto;color:var(--gray);font-size:13px}.busca-empty{text-align:center;padding:56px 20px}.busca-empty .e{font-size:44px;margin-bottom:12px}.busca-empty h2{font-family:var(--serif);font-size:24px;margin-bottom:6px}.busca-empty p{color:var(--gray);margin-bottom:20px}@media(max-width:560px){.result-course{display:none}}.area-wrap{max-width:var(--container);margin:0 auto;padding:0 24px 60px}.area-banner{background:var(--footer-bg);color:#fff;border-radius:12px;padding:32px;margin:8px 0 24px}.area-banner h1{font-family:var(--serif);font-size:32px;font-weight:700;margin-bottom:6px}.area-banner p{color:#cdd8df;font-size:16px}.area-collections{display:flex;flex-direction:column;gap:16px}.area-collection{border:1px solid var(--line);border-radius:12px;padding:22px 26px}.area-collection h2{font-size:18px;font-weight:700;margin-bottom:14px}.area-course-list{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);grid-gap:8px 24px;gap:8px 24px}.area-course-list a{color:var(--blue);font-size:15px;padding:6px 0;display:inline-block}.area-course-list a:hover{text-decoration:underline;text-underline-offset:.15rem}@media(max-width:760px){.area-course-list{grid-template-columns:1fr 1fr}}@media(max-width:480px){.area-course-list{grid-template-columns:1fr}}.unit-wrap{max-width:760px;margin:0 auto;padding:0 24px 60px}.unit-title{font-family:var(--serif);font-size:30px;font-weight:700;margin:6px 0}.unit-desc{color:var(--gray);font-size:16px;margin-bottom:24px}.lgroup{border:1px solid var(--line);border-radius:12px;padding:20px 24px;margin-bottom:16px}.lgroup h2{font-size:19px;font-weight:700}.lgroup-sub{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--gray);margin:4px 0 12px}.lgroup-items{list-style:none;display:flex;flex-direction:column;gap:6px}.litem{display:flex;align-items:center;gap:14px;padding:12px;border-radius:8px;color:inherit}.litem:hover{background:var(--bg-soft)}.litem-ic{width:38px;height:38px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.litem-ic.video{background:#e7f0ff;color:var(--blue)}.litem-ic.artigo{background:#fff4e0;color:#c98a00}.litem-ic.exercicio{background:#eafaf0;color:var(--green)}.litem-body b{font-weight:700;font-size:15px;display:block}.litem-body span{font-size:13px;color:var(--gray)}.content-layout{max-width:1180px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:300px 1fr}.content-main{padding:0 32px 40px;min-width:0}.content-side{border-right:1px solid var(--line);background:#fff;position:-webkit-sticky;position:sticky;top:60px;align-self:start;max-height:calc(100vh - 60px);overflow-y:auto}.side-badge{gap:12px;padding:16px 18px;border-bottom:1px solid var(--line)}.side-badge,.side-badge .ic{display:flex;align-items:center}.side-badge .ic{width:38px;height:38px;border-radius:8px;justify-content:center;color:#fff;flex-shrink:0;background:var(--green)}.side-badge b{font-size:15px;font-weight:700;line-height:1.2}.side-ctx{padding:12px 18px;border-bottom:1px solid var(--line)}.side-ctx .lbl{font-size:11px;text-transform:uppercase;letter-spacing:.4px;color:var(--blue);font-weight:800}.side-ctx b{display:block;font-size:14px;margin-top:2px}.video-embed-wrap{position:relative;width:100%;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#000}.video-embed{width:100%;height:100%;border:0;display:block}video.video-embed{aspect-ratio:16/9;border-radius:12px}.content-share{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 0 6px;border-bottom:1px solid var(--line);margin-bottom:6px}.cshare-tag{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;color:var(--gray)}.cshare-btn{display:inline-flex;align-items:center;gap:7px;height:40px;padding:0 6px;border:none;border-radius:4px;font-weight:400;font-size:16px;color:var(--blue);background:none;cursor:pointer}.cshare-btn:first-of-type{margin-left:auto}.cshare-btn:hover{text-decoration:underline;text-underline-offset:.2rem}.cshare-btn.wa{color:#0a8a3f}.content-desc{font-size:15px;color:#3b3e46;line-height:1.7;margin-top:8px}.dev-note{background:#fff8e1;border:1px solid #ffe08a;color:#7a5b00;font-size:13px;border-radius:8px;padding:10px 12px;margin-top:12px}.dev-note code{background:#fff;padding:1px 5px;border-radius:4px}.prose{max-width:680px}.prose .article-sub{color:var(--gray);font-size:17px;margin:6px 0 20px}.prose h2{font-family:var(--sans);font-size:20px;font-weight:700;margin:24px 0 10px}.prose p{font-size:16px;line-height:1.75;color:#2b2e36;margin-bottom:14px}.content-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:28px;flex-wrap:wrap}.cn-btn{display:inline-flex;align-items:center;height:44px;padding:0 18px;border:1px solid var(--line);border-radius:8px;font-weight:700;font-size:15px;color:var(--ink);background:#fff;cursor:pointer}.cn-btn:hover{background:var(--bg-soft)}.cn-btn.cn-primary{background:var(--blue);color:#fff;border-color:var(--blue)}.cn-btn.cn-primary:hover{background:var(--blue-dark)}.cn-btn.is-done{color:var(--green);border-color:var(--green)}@media(max-width:860px){.content-layout{grid-template-columns:1fr}.content-main{padding:0 16px 30px}.content-side{position:static;border-right:none;border-bottom:1px solid var(--line);max-height:none;order:2}}.exp-wrap{max-width:var(--container);margin:0 auto;padding:36px 24px 60px}.exp-wrap h1{font-family:var(--serif);font-size:34px;font-weight:700;margin-bottom:6px}.exp-lead{color:var(--gray);font-size:16px;margin-bottom:24px}.exp-grid{display:grid;grid-template-columns:300px 1fr;border:1px solid var(--line);border-radius:12px;overflow:hidden;min-height:360px}.exp-cats{border-right:1px solid var(--line);background:var(--bg-soft);padding:8px}.exp-cat{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;text-align:left;padding:14px;border-radius:8px;font-weight:700;font-size:15px;color:var(--ink);background:none;cursor:pointer}.exp-cat.active,.exp-cat:hover{background:#fff;color:var(--blue)}.exp-cat .chev{color:var(--gray)}.exp-cat.active .chev{color:var(--blue)}.exp-panel{padding:22px 26px}.exp-panel-title{font-size:14px;text-transform:uppercase;letter-spacing:.5px;color:var(--gray);margin-bottom:14px}.exp-courses{list-style:none;display:flex;flex-direction:column;gap:4px}.exp-course{display:flex;align-items:center;gap:12px;padding:12px 10px;border-radius:8px;color:inherit}.exp-course:hover{background:var(--bg-soft)}.exp-ic{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}.exp-course b{font-weight:700;font-size:15px;display:block}.exp-meta{font-size:13px;color:var(--gray)}.exp-accordion{display:none}.exp-acc{border-bottom:1px solid var(--line)}.exp-acc-head{display:flex;align-items:center;justify-content:space-between;width:100%;text-align:left;padding:16px 4px;font-weight:700;font-size:16px;background:none;cursor:pointer}.exp-acc.open .exp-acc-head .chev{transform:rotate(180deg)}.exp-acc-body{padding:0 4px 12px}@media(max-width:760px){.exp-grid{display:none}.exp-accordion{display:block}}.prog-wrap{max-width:var(--container);margin:0 auto;padding:36px 24px 60px}.prog-wrap h1{font-family:var(--serif);font-size:32px;font-weight:700;margin-bottom:8px}.prog-last{color:var(--gray);font-size:15px;margin-bottom:20px}.prog-last a{color:var(--blue);font-weight:700}.prog-sec{font-size:14px;text-transform:uppercase;letter-spacing:.5px;color:var(--gray);margin:26px 0 12px}.prog-card{display:flex;align-items:center;gap:16px;padding:16px;border:1px solid var(--line);border-radius:8px;margin-bottom:10px;color:inherit}.prog-card:hover{border-color:var(--blue);background:var(--bg-soft)}.prog-title{font-weight:700;font-size:15px;flex:1 1;min-width:0}.prog-card .bar{width:160px;flex-shrink:0}.prog-pct{font-size:13px;font-weight:800;color:var(--green);white-space:nowrap}.prog-empty{padding:40px 0;text-align:center;color:var(--gray)}.prog-empty p{margin-bottom:18px}@media(max-width:560px){.prog-card .bar{display:none}}.dash-wrap{max-width:var(--container);margin:0 auto;padding:36px 24px 60px}.dash-wrap h1{font-family:var(--serif);font-size:32px;font-weight:700;margin-bottom:20px}.dash-sec{font-size:14px;text-transform:uppercase;letter-spacing:.5px;color:var(--gray);margin:28px 0 12px}.dash-continue{display:flex;align-items:center;gap:16px;padding:20px;border-radius:12px;background:var(--footer-bg);color:#fff;margin-bottom:8px}.dash-continue:hover{filter:brightness(1.08)}.dash-continue .dc-label{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:#9fb2d6;display:block;margin-bottom:4px}.dash-continue b{font-size:16px}.dash-continue .dc-cta{margin-left:auto;font-weight:700;color:#fff;white-space:nowrap}.dash-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px}.dash-card{display:flex;flex-direction:column;gap:8px;border:1px solid var(--line);border-radius:10px;padding:18px;color:inherit}.dash-card:hover{border-color:var(--blue);box-shadow:var(--shadow-card-hover)}.dash-card b{font-size:15px;font-weight:700}.dash-pct{font-size:13px;font-weight:800;color:var(--green)}.dash-muted{font-size:13px;color:var(--gray)}.dash-empty{padding:32px 0;color:var(--gray)}.dash-empty p{margin-bottom:18px}@media(max-width:820px){.dash-grid{grid-template-columns:1fr 1fr}}@media(max-width:560px){.dash-grid{grid-template-columns:1fr}}.account-wrap{max-width:720px;margin:0 auto;padding:36px 24px 60px}.account-wrap h1{font-family:var(--serif);font-size:32px;font-weight:700;margin-bottom:16px}.profile-head{display:flex;align-items:center;gap:16px;margin-bottom:20px}.avatar.lg{width:64px;height:64px;font-size:22px}.profile-head h1{font-size:26px;margin-bottom:2px}.account-sec{font-size:14px;text-transform:uppercase;letter-spacing:.5px;color:var(--gray);margin:26px 0 12px}.account-list{display:flex;flex-direction:column;gap:8px}.account-row{display:flex;align-items:center;gap:10px;padding:14px 16px;border:1px solid var(--line);border-radius:8px;color:inherit;font-weight:700;font-size:15px}.account-row:hover{border-color:var(--blue);background:var(--bg-soft)}.btn-outline{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 16px;border:1px solid var(--sborder);border-radius:var(--r-sm);font-weight:700;font-size:15px;color:var(--ink);background:#fff}.btn-outline:hover{background:var(--bg-soft)}.profile-head .btn-outline{margin-left:auto}.settings-card{border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:16px}.settings-card h2{font-size:17px;font-weight:700;margin-bottom:14px}.set-field{display:block;margin-bottom:12px}.set-field span{display:block;font-size:13px;font-weight:700;margin-bottom:6px}.set-field input{width:100%;height:44px;border:1px solid var(--sborder);border-radius:6px;padding:0 14px;font-size:15px;font-family:var(--sans)}.set-check{display:flex;align-items:center;gap:10px;font-size:15px;margin-bottom:10px}.set-note{font-size:13px;margin-top:8px}.set-actions{display:flex;gap:12px;flex-wrap:wrap}.btn-danger{height:40px;padding:0 16px;border:1px solid #f0b3b4;border-radius:var(--r-sm);font-weight:700;font-size:15px;color:var(--danger);background:#fff;cursor:pointer}.btn-danger:hover{background:#fdecec}.btn-signup[disabled]{background:#e2e5e9;color:var(--gray);cursor:not-allowed;box-shadow:none}.cert-row{display:flex;align-items:center;gap:14px;padding:16px;border:1px solid var(--line);border-radius:10px}.cert-emoji{font-size:22px}.cert-title{font-weight:700;font-size:15px;flex:1 1}.cert-row .btn-signup{margin-left:auto}.certificate{border:3px solid var(--footer-bg);border-radius:14px;padding:44px 32px;text-align:center;background:#fff;box-shadow:var(--shadow-card)}.cert-brand{font-size:20px;color:var(--green);margin-bottom:24px}.cert-brand b{font-weight:900;color:var(--ink)}.cert-pre{color:var(--gray);font-size:15px}.cert-name{font-family:var(--serif);font-size:34px;font-weight:700;margin:8px 0;color:var(--footer-bg)}.cert-course{font-size:17px;margin-bottom:28px}.cert-foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--gray);border-top:1px solid var(--line);padding-top:16px}.cert-actions{display:flex;align-items:center;gap:16px;margin-top:20px}@media print{.cert-actions,footer.k-foot,header.k-head{display:none}.account-wrap{padding:0}}.admin-top{position:fixed;top:0;left:0;right:0;height:60px;background:var(--footer-bg);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:200}.admin-brand{font-size:18px;color:#fff}.admin-brand b{font-weight:900}.admin-brand span{color:#9fb2d6;font-weight:400;font-size:14px}.admin-exit{color:#cdd8df;font-weight:700;font-size:14px}.admin-exit:hover{color:#fff}.admin-body{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 60px)}.admin-side{border-right:1px solid var(--line);padding:16px 0;background:var(--bg-soft)}.admin-side a{display:block;padding:12px 24px;font-weight:700;font-size:15px;color:var(--ink)}.admin-side a:hover{background:#fff;color:var(--blue)}.admin-main{padding:28px 32px 50px;min-width:0}.admin-main h1{font-family:var(--serif);font-size:28px;font-weight:700;margin-bottom:8px}.admin-lead{color:var(--gray);font-size:15px;margin:6px 0 20px}.admin-stats{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:16px;gap:16px}.admin-stat{border:1px solid var(--line);border-radius:10px;padding:18px}.admin-stat b{font-size:28px;font-weight:800;display:block}.admin-stat span{color:var(--gray);font-size:14px}.admin-stat em{display:block;font-style:normal;font-size:12px;color:#c98a00;margin-top:4px}.admin-head-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table td,.admin-table th{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}.admin-table th{font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--gray)}.admin-mono{font-family:ui-monospace,monospace;color:var(--gray)}.admin-actions-cell{display:flex;gap:14px}@media(max-width:760px){.admin-body{grid-template-columns:1fr}.admin-side{display:flex;gap:8px;border-right:none;border-bottom:1px solid var(--line);padding:8px 12px;overflow-x:auto}.admin-side a{padding:8px 12px;white-space:nowrap}.admin-stats{grid-template-columns:1fr 1fr}}.role-card{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;margin-bottom:14px;transition:var(--t-default);cursor:pointer;background:#fff;width:100%;text-align:left}.role-card:hover{border-color:var(--blue);box-shadow:0 2px 10px rgba(0,0,0,.08)}.role-card b{font-weight:var(--fw-bold);font-size:17px;display:block}.role-card span{font-size:14px}.role-card .chev,.role-card span{color:var(--gray)}.bar{width:180px;height:10px;border-radius:5px;background:#e2e5e9;overflow:hidden}.bar i{display:block;height:100%;background:var(--green)}.mastery-label{gap:10px;font-size:13px;color:var(--gray);font-weight:var(--fw-bold)}.mastery-label,.sq{display:flex;align-items:center}.sq{width:22px;height:22px;border-radius:var(--r-sm);border:2px solid var(--m-naoiniciado);background:#fff;flex-shrink:0;justify-content:center;font-size:12px}.legend{display:flex;flex-wrap:wrap;gap:14px 22px;margin-bottom:32px}.legend .item{display:flex;align-items:center;gap:8px;font-size:14px}.legend .sq.dominado{border-color:var(--m-dominado);color:var(--m-dominado)}.legend .sq.proficiente{border-color:var(--m-proficiente);color:var(--m-proficiente)}.legend .sq.familiar{border-color:var(--m-familiar)}.legend .sq.tentativa{border-color:var(--m-tentativa)}.legend .sq.naoiniciado{border-color:var(--m-naoiniciado)}.legend .sq.teste,.legend .sq.testeu{background:var(--m-teste);border-color:var(--m-teste);color:var(--gray)}.grid{display:flex;flex-wrap:wrap;gap:8px}.grid .sq{width:34px;height:34px;border-radius:6px;cursor:pointer;transition:var(--t-fast)}.grid .sq:hover{transform:scale(1.12);box-shadow:0 2px 8px rgba(0,0,0,.18)}.grid .sq.dominado{background:var(--m-dominado);border-color:var(--m-dominado);color:#fff}.grid .sq.proficiente{background:var(--m-proficiente);border-color:var(--m-proficiente);color:#fff}.grid .sq.familiar{background:var(--m-familiar);border-color:var(--m-familiar);color:#fff}.grid .sq.tentativa{background:#fff;border-color:var(--m-tentativa)}.grid .sq.naoiniciado{background:#fff;border-color:var(--m-naoiniciado)}.grid .sq.teste{color:var(--gray)}.grid .sq.star,.grid .sq.teste{background:var(--m-teste);border-color:var(--m-teste)}.grid .sq.star{color:#e08600;font-size:16px}.lesson-row{display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:10px;cursor:pointer;transition:var(--t-fast);background:#fff;color:inherit}.lesson-row:hover{border-color:var(--blue);background:var(--bg-soft)}.lesson-row .type{width:40px;height:40px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;flex-shrink:0}.type.video{background:#e7f0ff;color:var(--blue)}.type.exercise{background:#eafaf0;color:var(--green)}.type.article{background:#fff4e0;color:#c98a00}.lesson-row .info{flex:1 1;min-width:0}.lesson-row .info b{font-weight:var(--fw-bold);font-size:15px;display:block}.lesson-row .info span,.lesson-row .state{font-size:13px;color:var(--gray)}.lesson-row .state{font-weight:var(--fw-bold);white-space:nowrap}.lesson-row .state.ok{color:var(--green)}.tabs{display:flex;border-bottom:1px solid var(--line);margin-bottom:20px}.tabs button{padding:12px 18px;font-weight:var(--fw-bold);font-size:15px;color:var(--gray);border-bottom:3px solid transparent;margin-bottom:-1px}.tabs button.active{color:var(--blue);border-color:var(--blue)}.tabpane{display:none;font-size:15px;color:#3b3e46;line-height:1.7}.tabpane.active{display:block}.tabpane p{margin-bottom:14px}footer.k-foot{background:var(--footer-bg);color:var(--footer-text);padding:48px 0 30px;margin-top:40px}.foot-inner{max-width:var(--container);margin:0 auto;padding:0 var(--pad-page)}.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;grid-gap:36px;gap:36px}.foot-mission{font-size:15px;line-height:1.6}.foot-mission p{margin-bottom:18px}.foot-mission a{color:#5c9bff;font-weight:var(--fw-bold)}.foot-col h4{color:#fff;font-size:13px;font-weight:var(--fw-bold);text-transform:uppercase;letter-spacing:.6px;margin-bottom:14px}.foot-col a{display:block;font-size:14px;padding:5px 0;color:var(--footer-text)}.foot-col a:hover{color:#fff;text-decoration:underline}.apps{margin-top:22px}.apps .h{color:#fff;font-size:13px;font-weight:var(--fw-bold);text-transform:uppercase;letter-spacing:.6px;margin-bottom:12px}.badge{display:inline-flex;align-items:center;gap:8px;background:#000;border:1px solid #3a4a6b;border-radius:6px;padding:8px 12px;margin:0 8px 8px 0;color:#fff;font-size:14px}.foot-bottom{border-top:1px solid #26385f;margin-top:40px;padding-top:24px}.foot-lang{display:flex;flex-direction:column;gap:10px;font-size:14px;margin-bottom:20px}.foot-lang select{background:transparent;color:#fff;border:1px solid #3a4a6b;border-radius:var(--r-sm);padding:6px 10px;font-family:var(--sans);font-size:14px;max-width:220px}.flags{gap:14px}.flags,.foot-legal{display:flex;align-items:center;flex-wrap:wrap}.foot-legal{gap:18px;font-size:13px}.foot-legal a:hover{color:#fff;text-decoration:underline}.foot-legal .social{margin-left:auto;display:flex;gap:14px}.foot-legal .social a{width:34px;height:34px;border-radius:50%;background:hsla(0,0%,100%,.08);display:flex;color:#fff;font-size:15px}.foot-legal .social a,.overlay{align-items:center;justify-content:center}.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:500;padding:20px}.overlay.show{display:flex}.modal{background:#fff;border-radius:var(--r-lg);max-width:380px;width:100%;padding:32px;box-shadow:var(--shadow-modal)}.modal h3{font-family:var(--serif);font-size:24px;margin-bottom:6px}.modal p{color:var(--gray);font-size:14px;margin-bottom:20px}.modal input{width:100%;height:44px;border:1px solid var(--sborder);border-radius:6px;padding:0 14px;font-size:15px;margin-bottom:12px;font-family:var(--sans)}.modal .btn-signup{width:100%;height:46px;font-size:16px;border-radius:6px}.modal .close{float:right;font-size:22px;color:var(--gray);cursor:pointer;line-height:1}.modal .muted{text-align:center;font-size:13px;color:var(--gray);margin-top:14px}@media(max-width:920px){.k-search{width:160px}.head-right{gap:16px}.explore{padding:8px 4px}}@media(max-width:760px){.k-search{width:140px}.subjects{column-count:1;column-gap:0}.acc-body .items{grid-template-columns:1fr}}@media(max-width:600px){.head-inner{display:flex;align-items:center;gap:4px}.head-left{display:none}.k-logo{justify-self:auto;margin-right:auto}.k-logo img{height:28px}.k-logo .word{font-size:18px}.head-right{gap:2px}.head-right .btn-signup,.head-right .link{display:none}.hamb,.m-search{display:flex}}@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}.foot-legal .social{margin-left:0}}@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}.course-split{max-width:1248px;margin:0 auto;display:grid;grid-template-columns:340px 1fr;align-items:start;min-height:calc(100vh - var(--header-h))}.c-side{position:-webkit-sticky;position:sticky;top:var(--header-h);align-self:start;border-right:1px solid var(--line);padding:16px 0;max-height:calc(100vh - var(--header-h));overflow-y:auto}.c-badge{gap:14px;padding:14px 24px;margin:0 12px 8px}.c-badge,.c-badge .ic{display:flex;align-items:center}.c-badge .ic{width:52px;height:52px;border-radius:10px;background:var(--gold);justify-content:center;flex-shrink:0;color:#fff}.c-badge b{font-size:18px;font-weight:700;display:block;line-height:1.2}.c-badge span{font-size:12px;color:var(--gray);text-transform:uppercase;letter-spacing:.4px;font-weight:700}.u-link{display:block;padding:14px 24px;border-left:4px solid transparent;cursor:pointer;color:inherit}.u-link:hover{background:var(--bg-soft)}.u-link.active{background:#e7f0ff;border-left-color:var(--blue)}.u-link .lbl{font-size:12px;color:var(--gray);text-transform:uppercase;letter-spacing:.5px;font-weight:700;margin-bottom:3px}.u-link .ttl{font-size:15px;color:var(--ink)}.u-link.active .ttl{color:var(--blue);font-weight:700}.c-main{padding:28px 40px 50px;min-width:0}.c-main .breadcrumb{padding:0;margin:0}.text-muted{color:var(--gray)}.c-main h1{font-family:var(--sans);font-weight:700;font-size:var(--fs-h1);letter-spacing:-.3px;margin:6px 0}.c-points{font-size:16px;color:var(--ink);margin-bottom:22px;display:flex;align-items:center;gap:8px}.c-points .i{width:18px;height:18px;border-radius:50%;border:1.5px solid var(--gray);color:var(--gray);font-size:12px;display:inline-flex;align-items:center;justify-content:center;font-style:italic}.units{column-count:2;column-gap:48px}.unit{page-break-inside:avoid;break-inside:avoid;margin-bottom:26px}.unit .uh{display:flex;align-items:baseline;gap:10px;margin-bottom:12px}.unit .uh .n{font-size:15px;font-weight:700}.unit .uh a{font-size:13px;color:var(--blue);font-weight:700;margin-left:auto}.unit .uh a:hover{text-decoration:underline;text-underline-offset:.15rem}.player{max-width:1180px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1fr 330px;min-height:calc(100vh - var(--header-h))}.player-main{padding:18px 32px 40px}.player-side{border-left:1px solid var(--line);background:var(--bg-soft)}.video{aspect-ratio:16/9;background:#0b0f14;border-radius:12px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}.video .field{position:absolute;bottom:0;left:0;right:0;height:38%;background:linear-gradient(0deg,#1a5c3f,#2e8b57)}.video .pl{width:76px;height:76px;border-radius:50%;background:hsla(0,0%,100%,.95);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.3);z-index:2;cursor:pointer;transition:var(--t-default)}.video .pl:hover{transform:scale(1.06)}.video .pl:after{content:"";border-left:24px solid var(--green);border-top:15px solid transparent;border-bottom:15px solid transparent;margin-left:6px}.video .ctrl{position:absolute;bottom:0;left:0;right:0;height:44px;background:linear-gradient(0deg,rgba(0,0,0,.7),transparent);display:flex;align-items:center;gap:12px;padding:0 16px;color:#fff;font-size:13px;z-index:3}.video .prog{flex:1 1;height:4px;background:hsla(0,0%,100%,.3);border-radius:2px;overflow:hidden}.video .prog i{display:block;width:35%;height:100%;background:var(--green)}.lesson-title{font-family:var(--serif);margin:22px 0 6px;font-size:28px;font-weight:700}.lesson-sub{color:var(--gray);font-size:14px;margin-bottom:18px}.lesson-nav{display:flex;gap:12px;margin-bottom:22px}.lesson-nav a{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--blue);border:1px solid var(--line);border-radius:6px;padding:8px 14px}.lesson-nav a:hover{background:var(--tint)}.lesson-nav button{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;border:1px solid var(--line);border-radius:6px;padding:8px 14px;background:#fff;cursor:pointer;color:var(--green)}.lesson-nav button.concluir{background:var(--green);color:#fff;border-color:var(--green)}.lesson-nav button.concluir:hover{filter:brightness(.95)}.side-h{padding:16px 20px;font-weight:800;text-transform:uppercase;letter-spacing:.4px;color:var(--gray)}.side-h,.side-item{border-bottom:1px solid var(--line);font-size:14px}.side-item{display:flex;gap:12px;align-items:center;padding:14px 20px;cursor:pointer;color:inherit}.side-item:hover{background:#fff}.side-item.current{background:#e7f0ff;border-left:4px solid var(--blue)}.side-item .ic{width:30px;height:30px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}.side-item .ic.video{background:#dbe8ff;color:var(--blue)}.side-item .ic.exercise{background:#daf5e8;color:var(--green)}.side-item .ic.article{background:#fff0d6;color:#c98a00}.side-item b{font-weight:700;display:block}.side-item span{font-size:12px;color:var(--gray)}.side-item .done{margin-left:auto;color:var(--green);font-weight:800}.quiz-wrap{max-width:760px;margin:0 auto;padding:32px 20px 60px}.quiz-top{display:flex;align-items:center;gap:14px;margin-bottom:26px;flex-wrap:wrap}.quiz-top a.exit{color:var(--blue);font-weight:700;font-size:14px}.quiz-top a.exit:hover{text-decoration:underline;text-underline-offset:.15rem}.dots{display:flex;gap:8px}.dots i{width:26px;height:8px;border-radius:4px;background:#e2e5e9}.dots i.done{background:var(--green)}.dots i.cur{background:var(--gold)}.streak{margin-left:auto;font-weight:800;color:#e08600;display:flex;align-items:center;gap:6px}.qcard{border:1px solid var(--line);border-radius:14px;padding:32px;box-shadow:var(--shadow-card)}.qcard .tag{display:inline-block;font-size:12px;font-weight:800;color:var(--green);text-transform:uppercase;letter-spacing:.5px;margin-bottom:12px}.qcard h1{font-family:var(--serif);font-size:24px;font-weight:700;margin-bottom:6px;line-height:1.3}.qcard .ctx{color:var(--gray);margin-bottom:24px;font-size:15px}.options{display:flex;flex-direction:column;gap:12px}.opt{display:flex;align-items:center;gap:14px;padding:16px 18px;border:2px solid var(--line);border-radius:10px;cursor:pointer;font-size:16px;font-weight:600;transition:var(--t-fast);background:#fff;text-align:left;width:100%}.opt:hover{border-color:var(--blue)}.opt .letter{width:32px;height:32px;border-radius:50%;border:2px solid var(--line);display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0;color:var(--gray)}.opt.selected{border-color:var(--blue);background:var(--tint)}.opt.selected .letter{border-color:var(--blue);background:var(--blue);color:#fff}.opt.correct{border-color:var(--green);background:#eafaf0}.opt.correct .letter{background:var(--green);border-color:var(--green);color:#fff}.opt.wrong{border-color:var(--danger);background:#fdecec}.opt.wrong .letter{background:var(--danger);border-color:var(--danger);color:#fff}.opt.disabled{pointer-events:none;opacity:.8}.quiz-foot{display:flex;align-items:center;gap:16px;margin-top:26px;flex-wrap:wrap}.feedback{font-weight:800;font-size:16px}.feedback.ok{color:var(--ok)}.feedback.no{color:var(--danger)}.btn-verify{margin-left:auto;padding:0 30px;height:48px;font-size:16px;border-radius:8px;background:#e2e5e9;color:var(--gray);font-weight:800;pointer-events:none;transition:var(--t-fast)}.btn-verify.on{background:var(--blue);color:#fff;pointer-events:auto}.btn-verify.on:hover{background:var(--blue-dark);box-shadow:0 0 0 2px #fff,0 0 0 4px var(--blue)}@media(max-width:1000px){.units{column-count:1}}@media(max-width:860px){.player{grid-template-columns:1fr}.player-main{padding:16px 18px 30px}.player-side{border-left:none;border-top:1px solid var(--line)}.lesson-title{font-size:23px}}.enroll-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:14px 18px;border:1px solid var(--line);border-radius:10px;background:var(--bg-soft);margin-bottom:22px}.enroll-bar.done{background:#eafaf0;border-color:#bfe8d5}.enroll-bar .enroll-msg{font-weight:700;font-size:15px}.enroll-bar .enroll-pct{font-weight:800;color:var(--green);font-size:14px}.enroll-bar .btn-signup{margin-left:auto}@media(max-width:820px){.course-split{grid-template-columns:1fr}.c-side{position:static;border-right:none;border-bottom:1px solid var(--line);max-height:none}.c-main{padding:24px 20px 40px}.c-main h1{font-size:28px}.enroll-bar .btn-signup{margin-left:0}}@media(max-width:520px){.qcard{padding:22px}.btn-verify{margin-left:0;width:100%}}.af-hint{font-size:13px;color:var(--muted,#6b7280)}.af-grid{display:grid;grid-template-columns:1fr 300px;grid-gap:24px;gap:24px;align-items:start}.af-card{background:#fff;border:1px solid #e6e6e6;border-radius:8px;padding:24px}.af-sec{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#6b7280;margin:24px 0 12px}.af-sec:first-child{margin-top:0}.af-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.af-field>span{font-size:14px;font-weight:600;color:#21242c}.af-field code{background:#f3f4f6;border-radius:3px;padding:1px 4px;font-size:12px}.af-field input,.af-field select,.af-field textarea,.af-optfb,.af-opttext{font:inherit;font-size:15px;color:#21242c;border:1px solid #d0d0d0;border-radius:6px;padding:9px 11px;background:#fff;width:100%}.af-field textarea{resize:vertical;line-height:1.5}.af-field input:focus,.af-field select:focus,.af-field textarea:focus,.af-optfb:focus,.af-opttext:focus{outline:none;border-color:#1865f2;box-shadow:0 0 0 3px rgba(24,101,242,.15)}.af-row2{display:grid;grid-template-columns:180px;grid-gap:14px;gap:14px}.af-row3{display:grid;grid-template-columns:1fr 1fr 1fr;grid-gap:12px;gap:12px}.af-types{display:flex;gap:8px}.af-type{font:inherit;font-size:14px;font-weight:600;padding:8px 16px;border:1px solid #d0d0d0;border-radius:20px;background:#fff;color:#21242c;cursor:pointer}.af-type.on{background:#1865f2;border-color:#1865f2;color:#fff}.af-opts{margin-bottom:14px}.af-optlbl{display:block;font-size:14px;font-weight:600;color:#21242c;margin-bottom:8px}.af-optlbl em{font-weight:400;color:#6b7280;font-style:normal}.af-opt{display:grid;grid-template-columns:auto auto 1fr 1fr auto;grid-gap:8px;gap:8px;align-items:center;margin-bottom:8px}.af-letter{font-weight:700;color:#6b7280;width:16px;text-align:center}.af-optfb,.af-opttext{margin:0}.af-optrm{border:none;background:none;color:#c66024;font-size:15px;cursor:pointer;padding:4px}.af-optrm:disabled{color:#ccc;cursor:not-allowed}.af-add{font:inherit;font-size:14px;font-weight:600;color:#1865f2;background:none;border:none;cursor:pointer;padding:4px 0}.af-status{display:flex;gap:12px;flex-wrap:wrap}.af-radio{display:flex;align-items:center;gap:6px;font-size:14px;padding:8px 14px;border:1px solid #d0d0d0;border-radius:6px;cursor:pointer}.af-radio.on{border-color:#1865f2;background:#f3f7ff}.af-radio em{color:#6b7280;font-style:normal;font-size:13px}.af-actions{margin-top:20px}.af-msg{margin-top:16px;padding:12px 14px;border-radius:6px;font-size:14px}.af-msg.ok{background:#eafaf1;color:#1a7f46;border:1px solid #b7e4c7}.af-msg.ok a{color:#1a7f46;font-weight:700;margin-left:6px}.af-msg.err{background:#fdecea;color:#c0392b;border:1px solid #f5b7b1}.af-side{background:#fff;border:1px solid #e6e6e6;border-radius:8px;padding:18px;position:-webkit-sticky;position:sticky;top:20px}.af-sidesub{font-size:13px;color:#6b7280;margin:0 0 12px}.af-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.af-listitem{display:flex;align-items:center;gap:8px;font-size:14px}.af-badge{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;padding:2px 6px;border-radius:4px;color:#fff;flex:none}.af-badge.video{background:#1865f2}.af-badge.artigo{background:#0d923f}.af-badge.exercicio{background:#d77d0f}.af-listtitle{flex:1 1;color:#21242c;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.af-draft{font-size:11px;color:#c66024;background:#fff3e6;padding:1px 5px;border-radius:3px}.af-view{color:#1865f2;text-decoration:none;font-weight:700}@media(max-width:920px){.af-grid,.af-row3{grid-template-columns:1fr}.af-opt{grid-template-columns:auto auto 1fr;grid-auto-flow:row}.af-side{position:static}}.ka-lesson{display:grid;grid-template-columns:325px 1fr;grid-gap:28px;gap:28px;max-width:1400px;margin:0 auto;padding:20px 24px 90px;align-items:start}.ka-lesson.side-collapsed{grid-template-columns:24px 1fr}.ka-lesson.side-collapsed .kl-side-card{display:none}.kl-side{position:-webkit-sticky;position:sticky;top:76px;display:flex;align-items:flex-start}.kl-side-card{flex:1 1;background:#fff;border:1px solid #dbdcdd;border-radius:8px;overflow:hidden}.kl-course{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid #ececf1}.kl-course b{font-size:16px;color:#21242c}.kl-course-ic{width:32px;height:32px;border-radius:7px;background:#1865f2;color:#fff;display:flex;align-items:center;justify-content:center;flex:none}.kl-ctx{padding:10px 12px;border-bottom:1px solid #ececf1;text-align:center}.kl-ctx-links{font-size:11px;letter-spacing:.04em;text-transform:uppercase}.kl-ctx-links a{color:#1865f2;text-decoration:none;font-weight:700}.kl-ctx-links a:hover{text-decoration:underline}.kl-ctx-links .gt{color:#6b7280;margin:0 4px}.kl-ctx-lesson{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-top:6px}.kl-ctx-lesson b{font-size:14px;color:#21242c;flex:1 1}.kl-ctx-lesson .arr{color:#6b7280;font-size:18px;text-decoration:none;padding:0 6px;border-radius:4px}.kl-ctx-lesson a.arr:hover{background:#f0f1f2;color:#1865f2}.kl-ctx-lesson .arr.off{opacity:.25}.kl-items{list-style:none;margin:0;padding:0}.kl-items li+li{border-top:1px solid #ececf1}.kl-item{display:flex;gap:12px;align-items:center;padding:14px 14px 14px 18px;text-decoration:none;border-left:4px solid transparent}.kl-item:hover{background:#f7f8fa}.kl-item.current{border-left-color:#1865f2;background:#f1f6ff}.kl-item.current .t{color:#1865f2;font-weight:700}.kl-item-ic{width:24px;height:24px;border:1.5px solid #babec2;border-radius:5px;display:flex;align-items:center;justify-content:center;color:#3b3e40;flex:none;background:#fff}.kl-item.current .kl-item-ic{border-color:#1865f2;color:#1865f2}.kl-item-tx{display:flex;flex-direction:column;min-width:0}.kl-item-tx .t{font-size:14px;color:#21242c;line-height:1.3}.kl-item-tx .s{font-size:12px;color:#6b7280;margin-top:2px}.kl-collapse{width:28px;height:28px;border-radius:50%;border:1px solid #dbdcdd;background:#fff;color:#3b3e40;cursor:pointer;font-size:15px;line-height:1;margin-left:-14px;margin-top:180px;box-shadow:0 1px 3px rgba(33,36,44,.12);z-index:2}.kl-collapse:hover{background:#f0f1f2}.kl-main{max-width:1000px;width:100%;margin:0 auto}.kl-title{font-size:26px;font-weight:700;color:#21242c;text-align:center;margin:6px 0}.kl-meta{display:flex;align-items:center;justify-content:center;gap:18px;margin-bottom:16px}.kl-meta-type{font-size:13px;color:#6b7280}.kl-share{display:inline-flex;align-items:center;gap:6px;font:inherit;font-size:14px;font-weight:700;color:#1865f2;background:none;border:none;cursor:pointer;padding:2px 4px}.kl-share:hover{text-decoration:underline}.kl-player-wrap{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:6px;overflow:hidden}.kl-player-wrap.empty{display:flex;align-items:center;justify-content:center;background:#f0f1f2;color:#6b7280}.kl-player{position:absolute;inset:0;width:100%;height:100%;border:0}video.kl-player{position:static;border-radius:6px}.kl-about{max-width:820px;margin:22px auto 0;font-size:14px;color:#3b3e40;line-height:1.6}.kl-article{max-width:820px;margin:10px auto 0}.kl-explain{margin-top:14px;font-size:14px;color:#3b3e40}.kl-quiz{margin-top:8px}.kl-next{position:fixed;right:28px;bottom:24px;background:#1865f2;color:#fff;font-size:14px;font-weight:700;text-decoration:none;padding:11px 18px;border-radius:5px;box-shadow:0 2px 8px rgba(11,33,73,.25);z-index:50}.kl-next:hover{background:#1557d0}@media(max-width:920px){.ka-lesson{grid-template-columns:1fr;padding:14px 14px 90px}.kl-side{position:static}.kl-collapse{display:none}}.kc-layout{display:grid;grid-template-columns:325px 1fr;grid-gap:0;gap:0;max-width:1465px;margin:0 auto;align-items:start}.kc-side{position:-webkit-sticky;position:sticky;top:60px;border-right:1px solid #ececf1;min-height:calc(100vh - 60px);background:#fff}.kc-badge{gap:12px;padding:18px 16px}.kc-badge,.kc-badge-ic{display:flex;align-items:center}.kc-badge-ic{width:40px;height:40px;border-radius:9px;color:#fff;font-weight:800;font-size:18px;justify-content:center;flex:none}.kc-badge b{display:block;font-size:15px;color:#21242c;line-height:1.25}.kc-badge span{display:block;font-size:11px;color:#6b7280;letter-spacing:.04em;margin-top:3px}.kc-side-units{display:flex;flex-direction:column}.kc-side-unit{display:block;padding:12px 16px;text-decoration:none;border-top:1px solid #ececf1;border-left:4px solid transparent}.kc-side-unit:hover{background:#f7f8fa}.kc-side-unit .lbl{display:block;font-size:11px;color:#6b7280;letter-spacing:.06em}.kc-side-unit .ttl{display:block;font-size:14px;color:#21242c;margin-top:2px;line-height:1.3}.kc-side-unit.active{border-left-color:#1865f2;background:#f1f6ff}.kc-side-unit.active .ttl{color:#1865f2}.kc-main{padding:22px 32px 60px;min-width:0}.kc-crumb{display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:10px}.kc-crumb a{color:#1865f2;text-decoration:none;font-weight:600}.kc-crumb a:hover{text-decoration:underline}.kc-crumb .home{font-size:16px}.kc-crumb .dot{color:#6b7280}.kc-title{font-size:36px;font-weight:700;color:#21242c;margin:2px 0 4px}.kc-points{font-size:14px;color:#6b7280;margin:0 0 16px}.kc-info{font-size:12px;border:1px solid #6b7280;border-radius:50%;width:15px;height:15px;display:inline-flex;align-items:center;justify-content:center;margin-left:2px}.kc-legend{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-bottom:18px;font-size:13px;color:#3b3e40}.kc-legend .it{gap:6px}.kc-legend .chip,.kc-legend .it{display:inline-flex;align-items:center}.kc-legend .chip{width:20px;height:20px;border-radius:5px;justify-content:center;font-size:12px;color:#fff}.kc-legend .chip.mastered{background:#594094}.kc-legend .chip.proficient{background:#a396c9}.kc-legend .chip.familiar{background:linear-gradient(0deg,#d77d0f 55%,#fff 0);border:2px solid #d77d0f}.kc-legend .chip.attempted{border:2px solid #d77d0f;background:#fff}.kc-legend .chip.notstarted{border:2px solid #babec2;background:#fff}.kc-legend .glyph{color:#3b3e40;background:#f0f1f2;border-radius:5px;width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-style:normal}.kc-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:0 40px;gap:0 40px;align-items:start}.kc-col{display:flex;flex-direction:column}.kc-unit{display:flex;gap:14px;align-items:flex-start;padding:12px 10px;border-bottom:1px solid #ececf1}.kc-unit.next{background:#eef3fe;border-radius:8px;border-bottom-color:transparent;padding:14px 12px}.kc-unit-head{width:96px;flex:none;display:flex;flex-direction:column;gap:4px}.kc-unit-name{font-size:14px;font-weight:700;color:#21242c;text-decoration:none;white-space:nowrap}.kc-unit-name:hover{color:#1865f2}.kc-next-chip{font-size:11px;font-weight:700;color:#5f6368;letter-spacing:.03em;white-space:nowrap}.kc-cells{display:flex;flex-wrap:wrap;gap:5px;align-items:center}.kc-sq{width:21px;height:26px;border:2px solid #babec2;border-radius:5px;background:#fff;display:inline-block}.kc-sq.focus,.kc-sq:hover{border-color:#1865f2}.kc-sq.focus{box-shadow:inset 0 0 0 1.5px #1865f2}.kc-glyph{width:22px;height:24px;border-radius:5px;background:#f0f1f2;color:#3b3e40;display:inline-flex;align-items:center;justify-content:center;font-size:12px;text-decoration:none}.kc-glyph:hover{background:#e2e4e7}.kc-challenge{border:1px solid #dbdcdd;border-radius:8px;padding:14px 16px;margin-top:16px}.kc-challenge-lbl{font-size:12px;font-weight:700;letter-spacing:.05em;color:#21242c}.kc-challenge p{font-size:13px;color:#6b7280;margin:6px 0}.kc-challenge a{font-size:14px;font-weight:700;color:#1865f2;text-decoration:none}.kc-challenge a:hover{text-decoration:underline}.kc-welcome{margin-top:34px;max-width:720px}.kc-welcome h2{font-size:22px;color:#21242c;margin-bottom:8px}.kc-welcome p{font-size:14px;color:#3b3e40;line-height:1.6}@media(max-width:1024px){.kc-grid{grid-template-columns:1fr}}@media(max-width:920px){.kc-layout{grid-template-columns:1fr}.kc-side{position:static;min-height:0;border-right:0;border-bottom:1px solid #ececf1}}.ku-band{display:flex;flex-wrap:wrap;gap:5px;align-items:center;margin:2px 0 22px}.ku-card{background:#fff;border:1px solid #dbdcdd;border-radius:8px;padding:22px 26px;margin-bottom:22px}.ku-card h2{font-size:22px;font-weight:700;color:#21242c;margin:0 0 8px}.ku-card p{font-size:14px;color:#3b3e40;line-height:1.6;margin:0}.ku-cols{display:grid;grid-template-columns:1fr 1fr;grid-gap:32px;gap:32px;margin-top:12px}.ku-cols.single{grid-template-columns:1fr}.ku-col-lbl{display:block;font-size:14px;color:#6b7280;margin-bottom:10px}.ku-learn ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}.ku-item{display:flex;gap:12px;align-items:center;text-decoration:none}.ku-item span:last-child{font-size:14px;color:#21242c;line-height:1.35}.ku-item:hover span:last-child{color:#1865f2}.ku-item-ic{width:28px;height:28px;border:1.5px solid #babec2;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#3b3e40;flex:none;background:#fff}.ku-item:hover .ku-item-ic{border-color:#1865f2;color:#1865f2}.ku-ex{display:flex;border:1px solid #ececf1;border-radius:6px;background:#fafafa;margin-bottom:12px;overflow:hidden}.ku-ex.next{border-top:4px solid #1865f2}.ku-ex-body{flex:1 1;padding:12px 14px;display:flex;flex-direction:column;gap:4px}.ku-ex-next{font-size:13px;color:#1865f2;font-weight:700}.ku-ex-body b{font-size:15px;color:#21242c}.ku-ex-meta{font-size:13px;color:#3b3e40}.ku-ex-btn{align-self:flex-start;margin-top:6px;font-size:14px;font-weight:700;text-decoration:none;padding:7px 16px;border-radius:5px;border:2px solid #1865f2;color:#1865f2;background:#fff}.ku-ex-btn:hover{background:#f1f6ff}.ku-ex-btn.primary{background:#1865f2;color:#fff}.ku-ex-btn.primary:hover{background:#1557d0}.ku-ex-status{width:92px;flex:none;border-left:1px solid #ececf1;display:flex;align-items:center;justify-content:center;font-size:13px;color:#3b3e40;text-align:center;padding:8px}@media(max-width:1024px){.ku-cols{grid-template-columns:1fr}}.kl-summary{text-align:center;font-size:14px;color:#3b3e40;border-top:1px solid #dbdcdd;border-bottom:1px solid #dbdcdd;padding:14px 8px;margin:2px 0 26px}.kl-article{max-width:620px;margin:0 auto;font-size:16px;line-height:1.65;color:#21242c}.kl-article h2{font-size:28px;font-weight:700;color:#21242c;margin:26px 0 10px}.kl-article h3{font-size:20px;font-weight:700;margin:20px 0 8px}.kl-article p{margin:0 0 14px}.kl-article a{color:#1865f2}.kl-article img{max-width:100%;height:auto;border-radius:4px}.kl-article ol,.kl-article ul{margin:0 0 14px 22px}.ks-wrap{background:#fff;min-height:60vh}.ks-band{background:#0b2149;position:-webkit-sticky;position:sticky;top:60px;z-index:5}.ks-band h1{padding:26px 24px;color:#fff;font-size:28px;font-weight:700}.ks-band h1,.ks-body{max-width:840px;margin:0 auto}.ks-body{padding:28px 24px 60px}.ks-card{background:#fff;border:1px solid #dbdcdd;border-radius:8px;padding:24px 28px;margin-bottom:24px}.ks-card h2{margin:0 0 14px}.ks-card h2 a{font-size:20px;font-weight:700;color:#3b3e40;text-decoration:none}.ks-card h2 a:hover{color:#1865f2}.ks-units{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);grid-gap:10px 24px;gap:10px 24px}.ks-units a{font-size:14px;color:#21242c;text-decoration:none}.ks-units a:hover{color:#1865f2;text-decoration:underline}.ks-error{border:1px solid #dbdcdd;border-radius:8px;padding:18px;color:#3b3e40;font-size:14px;background:#fafafa}@media(max-width:768px){.ks-units{grid-template-columns:1fr 1fr}}@media(max-width:480px){.ks-units{grid-template-columns:1fr}}.legal-page{max-width:760px;margin:0 auto;padding:40px 20px 80px;font-family:Lato,Helvetica Neue,Helvetica,sans-serif;color:#21242c}.legal-page h1{font-size:32px;font-weight:700;margin:0 0 4px}.legal-page .legal-updated{color:#6b7280;font-size:14px;margin:0 0 28px}.legal-page h2{font-size:20px;font-weight:700;margin:28px 0 8px}.legal-page p{font-size:16px;line-height:1.6;margin:0 0 12px}.legal-page a{color:#1865f2;text-decoration:none}.legal-page a:hover{text-decoration:underline}.hero{padding:56px 0 60px}.hero-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:56px;gap:56px;align-items:start}.hero h1{font-family:var(--serif);font-weight:700;font-size:var(--fs-display);line-height:var(--lh-display);letter-spacing:-.5px;margin-bottom:18px;color:var(--ink)}.hero .lede{font-size:var(--fs-lead);color:var(--ink);max-width:440px;margin-bottom:26px}.hero-photo{position:relative;margin-top:6px;max-width:100%}.hero-photo img{width:100%;border-radius:16px;box-shadow:0 14px 40px rgba(0,0,0,.18);position:relative;z-index:2}.doodle{position:absolute;pointer-events:none;z-index:3}.doodle.star{left:-16px;top:42%;color:var(--gold);font-size:46px;font-weight:900;line-height:1}.doodle.diamond{right:-10px;top:-14px;width:28px;height:28px;border:4px solid #57bf88;transform:rotate(45deg)}.doodle.squig{left:20px;bottom:-24px;width:70%;height:40px}.signup-col h2{font-family:var(--serif);font-weight:700;font-size:var(--fs-h2);line-height:1.15;margin-bottom:20px}.have-acc{font-size:15px;margin-top:8px}.have-acc a{color:var(--blue);font-weight:700}.have-acc a:hover{text-decoration:underline;text-underline-offset:.2rem}.why{padding:64px 0 56px}.why h2{font-family:var(--serif);font-weight:700;font-size:32px;text-align:center;margin-bottom:44px;letter-spacing:-.3px}.why-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:40px;gap:40px;max-width:var(--container);margin:0 auto;padding:0 var(--pad-page)}.why-col{text-align:center}.why-col .ill{width:96px;height:96px;margin:0 auto 20px;border-radius:18px;background:#eafaf0;display:flex;align-items:center;justify-content:center;font-size:42px}.why-col h3{font-size:19px;font-weight:700;margin-bottom:10px}.why-col p{color:var(--gray);font-size:15px;line-height:1.6}.partners{padding:48px 0 60px;text-align:center;border-top:1px solid var(--line)}.partners .lbl{color:var(--gray);font-size:13px;letter-spacing:1px;text-transform:uppercase;margin-bottom:24px}.partners .row{display:flex;justify-content:center;align-items:center;gap:56px;flex-wrap:wrap}.partners .plogo{color:#9aa0a6;font-weight:900;font-size:20px;letter-spacing:1px;opacity:.85}@media(max-width:820px){.hero{padding:36px 0 40px}.hero-grid{grid-template-columns:1fr;gap:44px}.hero h1{font-size:32px}.hero-photo{max-width:460px}}@media(max-width:760px){.why-grid{grid-template-columns:1fr;gap:40px}.why{padding:44px 0}}