[hidden]{display:none!important}
:root{--paper:#f7f8f3;--ink:#193d3a;--muted:#667773;--green:#245e52;--line:#dce3d9;--lime:#d5e78b;--white:#fff;--wash:#eaf0e6}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:'DM Sans',system-ui,sans-serif;font-size:15px;line-height:1.65}button,input,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}a{color:var(--green);text-underline-offset:4px}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #9dbe3d;outline-offset:4px}.skip{position:fixed;top:-80px;background:white;padding:12px;z-index:9}.skip:focus{top:8px}aside{position:fixed;inset:0 auto 0 0;width:250px;background:#edf1e8;border-right:1px solid var(--line);padding:34px 25px;display:flex;flex-direction:column}.brand{display:flex;gap:10px;text-decoration:none;align-items:center;font-size:20px;font-weight:800;letter-spacing:-1px}.drop{border:1px solid #8da89a;border-radius:50%;width:36px;height:42px;text-align:center;font-size:29px;line-height:35px;transform:rotate(-12deg)}.brand small{display:block;font-size:7px;letter-spacing:1.4px;margin-top:1px}.sideintro{font-size:12px;color:var(--muted);margin:30px 0 28px}nav{display:grid;gap:7px}nav a{padding:11px 14px;border-radius:6px;text-decoration:none;display:flex;gap:12px;font-size:13px}nav a.active{background:var(--green);color:white}nav a:hover{box-shadow:inset 0 0 0 1px #a9bdac}.progressbox{margin-top:auto;padding-top:34px;font-size:12px}.progressbox label{display:flex;justify-content:space-between}progress{width:100%;height:5px;accent-color:var(--green);display:block;margin:13px 0 8px}progress::-webkit-progress-bar{background:#d4dfce;border-radius:5px}progress::-webkit-progress-value{background:var(--green);border-radius:5px}.progressbox small{color:var(--muted);font-size:11px}.progressbox p{color:var(--muted);font-size:12px;margin-top:22px}aside footer{font-size:9px;letter-spacing:1px;border-top:1px solid var(--line);padding-top:18px;margin-top:20px;color:var(--muted)}.shell{margin-left:250px}header{height:75px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 48px;font-size:10px;letter-spacing:1.2px;color:var(--muted)}header button{background:transparent;border:0;color:var(--muted);font-size:11px;letter-spacing:0}main{padding:42px 48px 60px;max-width:1460px;margin:auto}h1,h2,h3{font-family:Manrope,system-ui,sans-serif;line-height:1.2}h1{font-size:clamp(36px,4.1vw,60px);font-weight:500;letter-spacing:-2.3px;margin:19px 0 22px}h2{font-size:26px;letter-spacing:-.9px;font-weight:600}h3{font-size:18px;letter-spacing:-.4px}.eyebrow{font-size:10px;letter-spacing:1.8px;text-transform:uppercase;font-weight:700}.badge{display:inline-block;background:#eaf0dc;border:1px solid #d7e2bc;padding:5px 10px;border-radius:20px;letter-spacing:.7px;font-size:9px}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:30px;align-items:center}.hero p{max-width:420px;color:var(--muted);font-size:15px}.hero h1 em{font-style:normal;color:#59806b}.heroart{background:#e6eddf;border-radius:10px;min-height:320px;position:relative;overflow:hidden}.heroart svg{width:100%;height:310px;display:block}.artcaption{font-size:9px;letter-spacing:1px;text-align:center;position:absolute;bottom:15px;width:100%;color:#5b7765}.btn{display:inline-block;background:var(--green);color:white;padding:12px 20px;border:1px solid var(--green);border-radius:5px;text-decoration:none;font-size:12px;font-weight:600}.btn.secondary{background:transparent;color:var(--green)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 16px}.tiny{font-size:11px;color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:36px 0;padding:20px 0}.stats>div{padding:0 23px;border-right:1px solid var(--line)}.stats>div:first-child{padding-left:0}.stats>div:last-child{border:0}.stats b{font-size:22px;display:block;font-family:Manrope,sans-serif;font-weight:600}.stats span{font-size:11px;color:var(--muted)}.sectionhead{display:flex;align-items:end;justify-content:space-between;margin:34px 0 20px;gap:20px}.sectionhead h2{margin:7px 0 0}.sectionhead p{font-size:12px;color:var(--muted);max-width:290px;margin:0}.modules{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.module{background:#fff;border:1px solid var(--line);border-radius:7px;overflow:hidden}.modtop{height:92px;background:#e9eee3;position:relative;padding:15px 20px;display:flex;justify-content:space-between;align-items:center}.modtop span{font-size:10px;letter-spacing:1px}.modtop svg{width:90px;height:65px}.modbody{padding:20px}.modbody h3{margin:0 0 9px;font-size:16px}.modbody p{font-size:12px;color:var(--muted);margin:0 0 18px;min-height:40px}.modbody a{font-size:11px;text-decoration:none;border-top:1px solid var(--line);padding-top:14px;display:flex;justify-content:space-between}.callout{background:#e9efdf;border:1px solid #d7e2c5;border-radius:6px;padding:22px 26px;margin:28px 0}.callout h3{margin-top:0}.callout p:last-child{margin-bottom:0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.steps p{font-size:12px;color:var(--muted)}.steps b{font-size:13px}.lessonlayout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:32px}.lessonlist{border-right:1px solid var(--line);padding-right:18px}.lessonlist input{width:100%;border:1px solid var(--line);background:white;padding:9px;border-radius:4px;font-size:12px;margin-bottom:18px}.lessonlist h3{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--muted);margin-top:24px}.lessonlist a{display:block;font-size:11px;text-decoration:none;padding:7px 8px;border-radius:4px;line-height:1.5}.lessonlist a.current{background:#dce8cf;font-weight:700}.lessonlist a:hover{background:var(--wash)}.lesson h1{font-size:38px;letter-spacing:-1.3px;margin-top:13px}.lesson .lead{font-size:16px;color:var(--muted)}.lesson p{max-width:780px}.lesson .bodytext p{font-size:16px;line-height:1.9}.hook{border-left:3px solid #9cbb64;padding:12px 20px;background:#edf2e7;margin:25px 0;font-size:19px}.formula{border:1px solid #cedbc7;background:#f0f4e9;padding:20px;border-radius:5px;font-family:Consolas,monospace;overflow-wrap:anywhere;font-size:14px;margin:22px 0}.example{background:white;border:1px solid var(--line);padding:22px 25px;border-radius:6px;margin:22px 0}.example .eyebrow{color:#718b48}.example p{margin-bottom:0}.diagram{margin:24px 0;background:#edf2e7;border-radius:8px;padding:10px}.diagram svg{display:block;width:100%;height:230px}.diagram figcaption{font-size:11px;color:var(--muted);text-align:center;padding:8px}.exercise{border:1px solid #cad7bb;background:#fff;border-radius:7px;padding:25px;margin:25px 0}.exercise input{max-width:180px;width:100%;padding:10px;border:1px solid #b8cbb9;border-radius:4px;background:#f9fbf6}.exercise label{display:block;font-size:12px;margin-bottom:8px}.exercise button{margin:5px}.feedback{font-size:13px;min-height:22px}details{border-top:1px solid var(--line);padding-top:14px;margin-top:15px}summary{cursor:pointer;color:var(--green);font-weight:600;font-size:13px}details p{font-size:14px}.errornote{font-size:13px;color:#79613a;border-left:3px solid #c7ab68;padding-left:16px}.lesson textarea,.notepad{width:100%;min-height:130px;border:1px solid var(--line);border-radius:5px;background:#fff;padding:14px;resize:vertical;color:var(--ink)}.lessonnav{display:flex;justify-content:space-between;gap:14px;margin:28px 0}.source{font-size:11px;color:var(--muted)}.bottom{border-top:1px solid var(--line);padding:22px 48px;font-size:11px;display:flex;justify-content:space-between;color:var(--muted)}table{width:100%;border-collapse:collapse;font-size:13px;background:#fff;margin:20px 0}th,td{text-align:left;padding:11px 13px;border-bottom:1px solid var(--line)}th{background:#e8eee1;font-weight:600}.tablewrap{overflow-x:auto}.reading{max-width:900px}.reading h1{font-size:42px}.reading p{max-width:800px}.reading li{margin:9px 0}.reading h2{margin-top:35px}.tag{font-size:10px;border:1px solid var(--line);border-radius:4px;padding:4px 8px}.projectmap svg{width:100%;height:auto}.checklist label{display:block;border-bottom:1px solid var(--line);padding:12px}.checklist input{margin-right:10px}.toolrow{display:flex;gap:10px;flex-wrap:wrap}.status{font-size:12px;color:var(--muted)}@media(min-width:1500px){main{padding-top:55px}.heroart{min-height:360px}.heroart svg{height:350px}}@media(max-width:1150px){aside{width:215px;padding:28px 18px}.shell{margin-left:215px}main{padding:32px 28px}.hero{gap:15px}.hero h1{font-size:42px}.heroart{min-height:290px}.heroart svg{height:280px}.lessonlayout{grid-template-columns:180px minmax(0,1fr);gap:22px}header{padding:0 28px}.modules{gap:10px}.modbody{padding:16px}}@media(max-width:800px){aside{position:relative;width:100%;padding:15px 20px;border-bottom:1px solid var(--line)}.brand{font-size:18px}.brand small{font-size:7px}.sideintro,.progressbox,aside footer{display:none}nav{display:flex;gap:4px;overflow:auto;margin-top:15px}nav a{white-space:nowrap;padding:8px;font-size:11px;gap:5px}.shell{margin-left:0}header{height:48px;padding:0 20px;font-size:8px;letter-spacing:.5px}header button{font-size:10px}main{padding:28px 20px}.hero{grid-template-columns:1fr}.hero h1{font-size:46px}.heroart{min-height:260px}.heroart svg{height:270px}.modules{grid-template-columns:repeat(2,1fr)}.sectionhead{display:block}.sectionhead p{margin-top:12px;max-width:none}.stats{grid-template-columns:repeat(2,1fr);gap:18px}.stats>div{border:none;padding:0}.lessonlayout{display:flex;flex-direction:column}.lessonlist{border:1px solid var(--line);padding:12px;max-height:210px;overflow:auto}.lessonlist h3{margin:15px 0 6px}.lesson h1{font-size:32px}.steps{grid-template-columns:1fr}.bottom{padding:18px 20px;gap:20px}.reading h1{font-size:34px}th,td{padding:9px;font-size:12px}}@media(max-width:450px){.modules{grid-template-columns:1fr}nav a{font-size:10px}.hero h1{font-size:39px}.heroart{min-height:220px}.heroart svg{height:230px}.lessonnav{flex-wrap:wrap}.stats b{font-size:20px}}@media print{aside,header,.bottom,.lessonlist,.actions,.lessonnav,button,.exercise input,.exercise label,.toolrow{display:none!important}.shell{margin:0}main{padding:0;max-width:none}.lessonlayout{display:block}body{background:white;color:black;font-size:11pt}.lesson h1,.reading h1{font-size:26pt}.heroart{max-width:500px}.module,.exercise,.example,.diagram{break-inside:avoid}.modules{display:block}.module{margin:12px 0}.notepad,textarea{min-height:80px}details>*{display:block!important}details{break-inside:avoid}.lesson .bodytext p{font-size:11pt}a{color:black}.reading{max-width:none}}
/* Controles reais de navegação: sem URLs de fragmento no Google Sites. */
button[data-route]{background:none;border:0;color:var(--green);text-align:left;cursor:pointer;padding:0;font:inherit}
nav button[data-route]{padding:11px 14px;border-radius:6px;display:flex;gap:12px;font-size:13px;width:100%}
nav button.active{background:var(--green);color:#fff}
button.brand{display:flex;font-size:20px;font-weight:800;letter-spacing:-1px}
.actions button.btn,.lessonnav button.btn{display:inline-block;background:var(--green);color:#fff;padding:12px 20px;border:1px solid var(--green);border-radius:5px;font-size:12px;font-weight:600}
.actions button.secondary,.lessonnav button.secondary{background:transparent;color:var(--green)}
.modbody button[data-route]{font-size:11px;border-top:1px solid var(--line);padding-top:14px;display:flex;justify-content:space-between;width:100%}
.lessonlist button[data-route]{display:block;font-size:11px;padding:7px 8px;border-radius:4px;line-height:1.5;width:100%}
.lessonlist button.current{background:#dce8cf;font-weight:700}
.lessonlist button:hover{background:var(--wash)}
.prereq{padding:15px 19px;background:#eef2e6;border-radius:5px;margin:20px 0;font-size:12px}.prereq p{margin:6px 0}.prereq b{text-transform:uppercase;letter-spacing:1px;font-size:10px}
.worked{margin-top:22px;border-top:1px solid var(--line);padding-top:12px}.worked h3{font-size:16px}.worked ol{list-style:none;counter-reset:calc;padding:0}.worked li{counter-increment:calc;position:relative;padding:12px 10px 16px 42px;border-bottom:1px solid var(--line)}.worked li::before{content:counter(calc);position:absolute;left:0;top:12px;border-radius:50%;background:#dce8cd;width:26px;height:26px;text-align:center;line-height:26px;font-size:12px}.worked li b{font-size:13px}.operation{font-size:17px;line-height:2;padding-top:9px;overflow-x:auto;overflow-wrap:anywhere}
math{font-size:1.08em;vertical-align:middle;font-family:'Cambria Math',math,serif}math[display="block"]{max-width:100%;overflow-x:auto;margin:12px 0;padding:8px 0;text-align:left}.formula{font-family:inherit;line-height:2;overflow-x:auto}.formula math{font-size:20px}.bodytext math,.operation math{margin:0 4px}.learning-diagram svg{height:auto;max-height:330px}.diagram{overflow:hidden}.diagram figcaption{padding:10px 14px;font-size:12px;line-height:1.7}
.modules{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:800px){nav button[data-route]{width:auto;white-space:nowrap;padding:8px;font-size:11px;gap:5px}.lessonlist button[data-route]{font-size:12px}.formula math{font-size:17px}.learning-diagram{padding:5px}.worked li{padding-left:36px}.operation{font-size:15px}}@media(max-width:450px){.modules{grid-template-columns:1fr}nav button[data-route]{font-size:10px}.learning-diagram svg{min-height:140px}.diagram figcaption{font-size:11px}}
@media print{button[data-route]{color:#000}.worked li{break-inside:avoid}.prereq{break-inside:avoid}.modules{display:block}.operation{overflow:visible}math[display="block"]{overflow:visible}}

.conceptcheck{border-left:4px solid #83a68d;padding:12px 20px;margin:24px 0;background:#fff}.conceptcheck h3{font-size:16px}

.case-study{padding:22px 24px;background:#eaf1e1;border:1px solid #d1dfc3;border-radius:6px;margin:24px 0}.case-study p:last-child{margin-bottom:0}
.interpretation{margin:28px 0;padding:24px;background:#fff;border:1px solid #b8cda8;border-radius:7px}.interpretation h3{font-size:19px;line-height:1.5}.review-options{display:grid;gap:10px}.review-options button{background:#f7faf3;color:var(--ink);border:1px solid #c4d3bd;border-radius:5px;text-align:left;padding:12px 15px;line-height:1.6}.review-options button:hover,.review-options button.selected{background:#dfeccf;border-color:#5c8151}
.method-detail,.optional-exercise,.project-method{padding:17px 20px;background:#f1f4ed;border:1px solid #d4dfcb;border-radius:5px;margin:22px 0}.method-detail>summary,.optional-exercise>summary,.project-method>summary{font-size:14px}.method-detail .example{margin-bottom:0}.optional-exercise .exercise{margin-bottom:0}.reading .tablewrap,.lesson .tablewrap{max-width:100%}
@media(max-width:600px){.case-study,.interpretation{padding:18px}.method-detail,.optional-exercise,.project-method{padding:14px 12px}.interpretation h3{font-size:17px}.tablewrap table{min-width:540px}}@media print{.interpretation,.case-study{break-inside:avoid}.review-options button{display:block!important;margin:8px 0;width:100%}}
