.study-app{--study-accent:var(--ink,#171717);--study-bg:var(--wash,#f7f7f5);--study-surface:var(--paper,#fff);--study-text:var(--ink,#171717);--study-muted:var(--ink-2,#525252);--study-rule:var(--rule,#deded9);--study-soft:var(--rule-2,#efefec);--study-danger:var(--seal,#ad2424);color:var(--study-text);background:var(--study-bg);font-family:var(--font-body,system-ui, sans-serif);margin:0;font-size:16px;line-height:1.6}.study-app *,.study-admin *{box-sizing:border-box}.study-app [hidden],.study-admin [hidden]{display:none!important}.study-app :is(h1,h2,h3,p){margin:0}.study-app :is(h1,h2,h3){font-family:var(--font-display,system-ui, sans-serif);text-wrap:pretty}.study-app h1{letter-spacing:-.035em;font-size:clamp(26px,3vw,36px);line-height:1.22}.study-app h2{font-size:19px;line-height:1.4}.study-app h3{font-size:16px;line-height:1.45}.study-app a{color:inherit;text-decoration:none}.study-app :is(button,input,select,textarea),.study-admin :is(button,input,select,textarea){font:inherit}.study-app :is(button,select,summary),.study-admin :is(button,select,summary){cursor:pointer}.study-app :is(a,button,input,select,textarea,summary):focus-visible,.study-admin :is(a,button,input,select,textarea,summary):focus-visible{outline:3px solid var(--study-accent,var(--ink));outline-offset:3px}.study-app :is(input,select,textarea),.study-admin :is(input:not([type=checkbox]),select,textarea){background:var(--study-surface,#fff);min-height:44px;color:var(--study-text,var(--ink));border:1px solid var(--study-rule,var(--rule));border-radius:6px;max-width:100%;padding:9px 12px}.study-app svg{flex:none}.study-sr-only{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}.study-skip{z-index:60;background:var(--study-surface);border:2px solid var(--study-text);padding:12px 20px;position:absolute;top:-80px;left:16px}.study-skip:focus{top:8px}.study-topbar{background:var(--study-surface);border-bottom:1px solid var(--study-rule);justify-content:space-between;align-items:center;gap:20px;min-height:76px;padding:12px clamp(16px,3vw,40px);display:flex}.study-brand{align-items:center;gap:18px;min-width:0;min-height:44px;display:inline-flex}.study-brand>span:last-child{border-left:1px solid var(--study-rule);letter-spacing:-.02em;padding-left:18px;font-weight:600}.study-brand .brand-logo{max-width:172px}.study-account{align-items:center;gap:16px;font-size:14px;display:flex}.study-account>a{align-items:center;min-height:44px;font-weight:600;display:inline-flex}.study-account-menu{position:relative}.study-account-menu summary{justify-content:center;align-items:center;min-width:44px;min-height:44px;list-style:none;display:flex}.study-account-menu summary::-webkit-details-marker{display:none}.study-avatar{width:38px;height:38px;color:var(--study-surface);background:var(--study-text);border-radius:50%;place-items:center;font-weight:600;display:grid}.study-account-menu>div{z-index:25;background:var(--study-surface);border:1px solid var(--study-rule);border-radius:10px;width:min(260px,80vw);padding:12px;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 12px 32px #00000012}.study-account-menu :is(p,a,button){text-align:left;overflow-wrap:anywhere;width:100%;min-height:44px;padding:10px;display:block}.study-account-menu p{border-bottom:1px solid var(--study-rule);font-weight:600}.study-account-menu button{background:0 0;border:0}.study-main{min-width:0}.study-footer{border-top:1px solid var(--study-rule);color:var(--study-text);background:var(--study-surface);padding:32px 16px 24px;font-size:14px}.study-footer__inner{gap:28px;width:min(1160px,100%);margin-inline:auto;display:grid}.study-footer__inner>*{min-width:0}.study-footer h2{margin-bottom:10px;font-size:16px}.study-footer p,.study-footer address{color:var(--study-muted);overflow-wrap:anywhere}.study-footer__business>p+p,.study-footer address{margin-top:8px}.study-footer address{max-width:52ch;font-style:normal}.study-footer__policies ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 16px;margin:0;padding:0;list-style:none;display:grid}.study-footer a{text-underline-offset:3px;overflow-wrap:anywhere;align-items:center;min-height:44px;text-decoration:underline;display:inline-flex}.study-footer a:hover{color:var(--study-sales-blue,#0b4ea2)}.study-footer__support>a{max-width:100%;font-weight:700}.study-footer__support{flex-direction:column;align-items:flex-start;display:flex}.study-footer__support>p+p{margin-top:8px}.study-app .study-whatsapp-help{color:#fff;background:#086b3d;border:1px solid #086b3d;border-radius:8px;justify-content:center;align-items:center;gap:8px;max-width:100%;min-height:44px;padding:10px 14px;font-size:14px;font-weight:700;line-height:1.4;text-decoration:none;display:inline-flex}.study-app .study-whatsapp-help:hover{color:#fff;background:#05552f}.study-app .study-whatsapp-help--floating{z-index:32;right:16px;bottom:calc(20px + env(safe-area-inset-bottom));position:fixed;box-shadow:0 4px 16px #071a3d24}.study-temporary-login{border:1px solid var(--study-rule);text-align:left;border-radius:8px;margin-block:20px;padding:14px}.study-temporary-login summary{min-height:44px;padding-block:10px;font-weight:700}@media (width<=899px){.study-app--sales:not(.study-app--checkout) .study-whatsapp-help--floating{bottom:calc(100px + env(safe-area-inset-bottom))}}@media print{.study-whatsapp-help{display:none!important}}.study-footer .study-footer__copyright{border-top:1px solid var(--study-rule);width:min(1160px,100%);margin:24px auto 0;padding-top:16px;font-size:12px}.study-app--sales .study-sales-page{padding-bottom:40px}.study-app--sales .study-footer{padding-bottom:calc(104px + env(safe-area-inset-bottom))}@media (width>=900px){.study-footer{padding:40px}.study-footer__inner{grid-template-columns:minmax(0,1.15fr) minmax(0,1.1fr) minmax(0,.8fr);gap:36px}.study-app--sales .study-footer{padding-bottom:24px}}.study-button{border:1px solid var(--study-rule,var(--rule));background:var(--study-surface,#fff);min-height:44px;color:var(--study-text,var(--ink));text-align:center;border-radius:7px;justify-content:center;align-items:center;gap:8px;padding:9px 15px;font-weight:600;line-height:1.4;text-decoration:none;transition:background .15s,border-color .15s;display:inline-flex;font-size:14px!important}.study-button:hover,.study-account-menu :is(a,button):hover{background:var(--study-soft,#efefec)}.study-button--primary{border-color:var(--study-accent,var(--ink));background:var(--study-accent,var(--ink));color:var(--study-surface,#fff)!important}.study-button--primary:hover{background:#343434}.study-button:disabled{cursor:not-allowed;opacity:.45}.study-icon-button{min-width:44px;padding-inline:10px}.study-eyebrow{font-family:var(--font-mono,monospace);text-transform:uppercase;letter-spacing:.1em;color:var(--study-muted,var(--ink-2));font-size:11px;font-weight:600}.study-muted{color:var(--study-muted,var(--ink-2));font-size:14px}.study-actions{flex-wrap:wrap;gap:12px;display:flex}.study-text-link{font-size:14px;font-weight:600}.study-landing{width:min(1140px,100%);margin-inline:auto;padding:clamp(32px,7vw,88px) clamp(20px,4vw,40px)}.study-intro{max-width:740px}.study-intro h1{margin-top:20px;font-size:clamp(36px,5.4vw,62px);line-height:1.13}.study-lede{max-width:64ch;color:var(--study-muted);font-size:18px;margin-block:24px!important}.study-intro>.study-muted{margin-top:16px}.study-features{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-block:52px 24px;display:grid}.study-features article{border:1px solid var(--study-rule);background:var(--study-surface);border-radius:12px;padding:28px}.study-feature-icon{margin-bottom:24px;display:flex}.study-features h2{margin-bottom:12px}.study-features p,.study-reading-note p{color:var(--study-muted);font-size:14px}.study-reading-note{border:1px solid var(--study-rule);border-radius:10px;padding:22px}.study-reading-note p{margin-top:6px}.study-library-shell{width:min(1440px,100%);margin:auto}.study-library-nav{border-right:1px solid var(--study-rule);padding:32px 20px}.study-library-nav>a{border-radius:7px;align-items:center;gap:12px;min-height:48px;margin-top:16px;padding:12px;font-size:14px;display:flex}.study-library-nav>a[aria-current]{background:var(--study-text);color:var(--study-surface);font-weight:600}.study-nav-note{color:var(--study-muted);padding:24px 12px;font-size:13px}.study-library-content{min-width:0;padding:30px clamp(20px,3vw,40px) 60px}.study-library-heading{grid-template-columns:minmax(220px,1fr) minmax(260px,560px);align-items:center;gap:24px;display:grid}.study-library-heading h1{margin:0;font-size:clamp(26px,2.5vw,32px)}.study-search{min-width:0}.study-search>label{margin-bottom:7px;font-size:13px;font-weight:600;display:block}.study-search>div{background:var(--study-surface);border:1px solid var(--study-rule);border-radius:8px;align-items:center;gap:10px;padding-left:14px;display:flex}.study-search input{background:0 0;border:0;width:100%;min-width:0;padding-inline:0}.study-search .study-button{margin:4px}.study-library-toolbar,.study-section-heading{justify-content:space-between;align-items:center;gap:16px;display:flex}.study-library-toolbar{border-bottom:1px solid var(--study-rule);margin-top:20px;padding-block:8px}.study-breadcrumb{flex-wrap:wrap;align-items:center;gap:4px;margin:0;padding:0;font-size:13px;list-style:none;display:flex}.study-breadcrumb li{overflow-wrap:anywhere;align-items:center;min-width:0;display:flex}.study-breadcrumb li+li:before{content:"/";color:var(--study-muted,var(--ink-2));padding-inline:10px}.study-breadcrumb a{align-items:center;min-height:44px;display:inline-flex}.study-breadcrumb [aria-current]{font-weight:600}.study-view-toggle{flex:none;gap:8px;display:flex}.study-view-toggle .study-button[aria-current]{background:var(--study-text);border-color:var(--study-text);color:var(--study-surface)}.study-section{margin-top:24px}.study-section-heading{margin-bottom:18px}.study-topic-list{flex-wrap:wrap;align-items:center;gap:8px;padding-top:18px;display:flex}.study-topic-chip{border:1px solid var(--study-rule);background:var(--study-surface);border-radius:24px;align-items:center;gap:9px;max-width:100%;min-height:44px;padding:8px 15px;font-size:13px;font-weight:600;transition:background .15s,border-color .15s;display:inline-flex}.study-topic-chip span{overflow-wrap:anywhere}.study-topic-chip:hover{border-color:var(--study-text);background:var(--study-soft)}.study-results-heading{flex-wrap:wrap;align-items:baseline;gap:6px 12px;min-width:0;display:flex}.study-results-heading h2{overflow-wrap:anywhere}.study-results-heading>.study-muted{white-space:nowrap;font-size:13px}.study-clear-search{text-underline-offset:3px;flex:none;align-items:center;min-height:44px;font-size:13px;display:inline-flex;text-decoration:underline!important}.study-folder-grid,.study-recent-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.study-folder{border:1px solid var(--study-rule);background:var(--study-surface);border-radius:9px;align-items:center;gap:16px;min-height:94px;padding:20px;display:flex}.study-folder span{min-width:0}.study-folder strong,.study-folder small{overflow-wrap:anywhere;display:block}.study-folder small{color:var(--study-muted);margin-top:4px;font-size:12px}.study-resume-card{background:var(--study-surface);border:1px solid var(--study-rule);border-radius:9px;gap:10px;padding:22px;display:grid}.study-resume-card progress{appearance:none;background:var(--study-soft);border:0;border-radius:8px;width:100%;height:5px}.study-resume-card progress::-webkit-progress-bar{background:var(--study-soft);border-radius:8px}.study-resume-card progress::-webkit-progress-value{background:var(--study-text);border-radius:8px}.study-resume-card progress::-moz-progress-bar{background:var(--study-text)}.study-materials--grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;display:grid}.study-material-card{background:var(--study-surface);border:1px solid var(--study-rule);border-radius:9px;min-width:0;transition:border-color .15s,box-shadow .15s;overflow:hidden}.study-materials--grid .study-material-card{flex-direction:column;display:flex}.study-material-cover{--study-cover-bg:var(--study-text);--study-cover-ink:var(--study-surface);isolation:isolate;aspect-ratio:16/9;background:var(--study-cover-bg);color:var(--study-cover-ink);flex-direction:column;justify-content:space-between;align-items:flex-start;gap:12px;padding:24px;display:flex;position:relative;overflow:hidden}.study-material-cover--1{--study-cover-bg:color-mix(in srgb, var(--study-soft) 78%, #a8b5a3);--study-cover-ink:var(--study-text)}.study-material-cover--2{--study-cover-bg:color-mix(in srgb, var(--study-text) 72%, #865c35)}.study-material-cover--3{--study-cover-bg:color-mix(in srgb, var(--study-soft) 78%, #b1bbcc);--study-cover-ink:var(--study-text)}.study-material-cover:before{content:"";z-index:-1;opacity:.13;border:1px 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h3{letter-spacing:-.018em;font-size:17px;line-height:1.4}.study-material-meta{color:var(--study-muted);flex-wrap:wrap;align-items:center;gap:4px 10px;margin-top:10px;font-size:12px;display:flex}.study-material-meta>span+span:before{content:"·";margin-right:10px}.study-material-progress{gap:5px;margin-top:17px;display:grid}.study-material-progress>span{color:var(--study-muted);font-size:12px}.study-material-progress progress{appearance:none;background:var(--study-soft);border:0;border-radius:4px;width:100%;height:4px;display:block;overflow:hidden}.study-material-progress progress::-webkit-progress-bar{background:var(--study-soft)}.study-material-progress progress::-webkit-progress-value{background:var(--study-text)}.study-material-progress progress::-moz-progress-bar{background:var(--study-text)}.study-card-open{border-top:1px solid var(--study-soft);justify-content:space-between;align-items:center;gap:12px;min-height:48px;margin-top:auto;padding:12px 18px;font-size:13px;font-weight:600;display:flex}.study-material-card:hover,.study-folder:hover,.study-resume-card:hover{border-color:var(--study-text)}.study-material-card:hover{box-shadow:0 4px 16px #00000008}.study-materials--list{gap:14px;display:grid}.study-materials--list .study-material-card{grid-template-columns:240px minmax(0,1fr) 180px;align-items:center;display:grid}.study-materials--list .study-material-cover{aspect-ratio:auto;align-self:stretch;min-height:170px;padding:20px}.study-materials--list .study-material-cover>strong{font-size:21px}.study-materials--list .study-material-details{padding:20px 24px}.study-materials--list .study-material-progress{max-width:350px}.study-materials--list .study-card-open{border-top:0;margin:0}.study-course-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start;gap:18px;padding-top:18px;display:grid}.study-course-card{border:1px solid var(--study-rule);background:var(--study-surface);border-radius:9px;min-width:0;overflow:hidden}.study-course-card--with-cover>.study-course-cover{aspect-ratio:auto;height:170px}.study-course-card:hover{border-color:var(--study-text)}.study-course-name{overflow-wrap:anywhere;padding:14px 16px;font-size:15px;font-weight:600;display:block}.study-course-card--no-cover{align-items:center;gap:10px;min-height:44px;padding:0 14px;display:flex}.study-course-card--no-cover .study-course-name{padding:10px 0}.study-course-icon{flex:none;display:flex}.study-course-cover{aspect-ratio:2/3;background:var(--study-soft,#efefec);width:100%;position:relative;overflow:hidden}.study-course-cover-image{object-fit:contain;object-position:center;width:100%;height:100%;display:block}.study-material-card--with-cover .study-course-cover.study-material-cover{aspect-ratio:auto;background:0 0;align-self:start;height:170px;min-height:0;padding:0;display:block}.study-course-cover.study-material-cover:before{content:none}.study-course-grid--list{grid-template-columns:minmax(0,1fr);gap:12px}.study-course-grid--list .study-course-card--with-cover{grid-template-columns:100px minmax(0,1fr);align-items:center;display:grid}.study-course-cover--preview{border:1px solid var(--study-rule,#deded9);border-radius:6px;max-width:120px;margin-bottom:12px}.study-admin__cover-fields>label{margin-top:12px}.study-admin__cover-fields>.study-muted{margin-block:6px 10px;font-size:12px}@media (width>=1280px){.study-course-grid--grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (width<=960px){.study-course-grid--grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=540px){.study-course-grid--grid{grid-template-columns:minmax(0,1fr)}}.study-empty{border:1px solid var(--study-rule);background:var(--study-surface);text-align:center;border-radius:9px;justify-items:center;gap:10px;padding:48px 24px;display:grid}.study-empty p{max-width:55ch;color:var(--study-muted);font-size:14px}.study-pagination{margin-top:28px}.study-pagination :is(a,span[aria-current]){min-height:44px}.study-reader{max-width:1800px;margin:auto;padding:20px clamp(12px,2.5vw,32px) 32px}.study-reader-heading{justify-content:space-between;align-items:center;gap:20px;padding-bottom:20px;display:flex}.study-reader-heading>div{min-width:0}.study-reader-heading h1{overflow-wrap:anywhere;margin-bottom:6px;font-size:clamp(21px,2.4vw,29px)}.study-back{align-items:center;gap:8px;min-height:44px;font-size:13px;display:inline-flex}.study-reader-grid{grid-template-columns:250px minmax(0,1fr);align-items:start;gap:22px;display:grid}.study-reader-sidebar{background:var(--study-surface);border:1px solid var(--study-rule);border-radius:9px;max-height:calc(100dvh - 32px);position:sticky;top:16px;overflow-y:auto}.study-chapters>summary{border-bottom:1px solid var(--study-rule);min-height:48px;padding:14px;font-size:14px;font-weight:600}.study-chapters-body{padding:16px 12px}.study-chapters h2{margin:20px 4px 8px;font-size:13px}.study-chapters ol{margin:0;padding:0;list-style:none}.study-chapters button,.study-bookmark-link{text-align:left;overflow-wrap:anywhere;background:0 0;border:0;border-radius:6px;justify-content:space-between;align-items:center;gap:12px;width:100%;min-height:44px;padding:10px;display:flex;font-size:13px!important}.study-chapters button:hover,.study-chapters button[aria-current]{background:var(--study-soft)}.study-reader-security{color:var(--study-muted);border-top:1px solid var(--study-rule);padding-top:16px;font-size:12px;margin:24px 4px 0!important}.study-reader-main{min-width:0}.study-reader-toolbar{border:1px solid var(--study-rule);background:var(--study-surface);border-radius:9px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:10px;display:flex}.study-page-controls,.study-page-controls form,.study-reader-options{align-items:center;gap:8px;display:flex}.study-page-controls form{font-size:13px}.study-page-controls input{text-align:center;width:65px;padding-inline:6px}.study-reader-options select{width:auto;padding-right:24px;font-size:13px}.study-zoom-control{align-items:center;gap:6px;min-width:0;display:flex}.study-zoom-field{width:76px;display:block;position:relative}.study-zoom-field input[type=number]{font-variant-numeric:tabular-nums;text-align:right;width:100%;min-height:44px;padding:9px 25px 9px 8px;font-size:14px}.study-zoom-field>span{color:var(--study-muted);pointer-events:none;font-size:13px;position:absolute;top:50%;right:9px;transform:translateY(-50%)}.study-zoom-hint{color:var(--study-muted);white-space:nowrap;font-size:11px}.study-reader-options 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