/* Caminhos da Água — identidade visual inspirada no climaSUS (tema Aurora):
   floresta + creme, Newsreader (display) + IBM Plex Sans (corpo) + IBM Plex Mono (rótulos). */
:root {
  --paper: #f7fbf8; --surface: #ffffff; --ink: #052e2b; --muted: #5e7772; --rule: #d9e8e2;
  --accent: #0e7a5f; --accent-dark: #052e2b; --accent-soft: #e5f4ee;
  --blue: #1d9bf0; --green: #42d392; --coral: #ff6b4a; --warm: #d85b3f; --warm-soft: #fff0eb;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body { max-width: 48rem; margin: 0 auto; padding: 1.25rem 1rem 6rem; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 1rem; line-height: 1.55; }
h1, h2, h3, .kicker, .eyebrow, button, label, .topbar, .evidencia-status, .helper-text, .pill, .steps { font-family: var(--sans); }
h1 { margin: .25rem 0 .5rem; color: var(--accent-dark); font-family: var(--serif); font-weight: 600; font-size: clamp(2.4rem, 9vw, 4.4rem); line-height: .98; letter-spacing: 0; }
.accent-word { color: var(--accent); font-style: italic; font-weight: 500; }
h2 { margin: .15rem 0 .55rem; color: var(--accent-dark); font-family: var(--serif); font-weight: 500; font-size: 1.55rem; line-height: 1.15; letter-spacing: 0; }
h3 { margin: 1.25rem 0 .45rem; font-size: 1.05rem; line-height: 1.25; }
p { margin: .5rem 0; }
a { color: var(--accent-dark); }
button, input, textarea, select { min-height: 2.75rem; }
button { font-size: .92rem; font-weight: 650; line-height: 1.25; }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, a:focus-visible { outline: 3px solid #efb366; outline-offset: 2px; }
.hidden { display: none !important; }
.start-shell { padding-top: 3vh; }
.brand-block { padding: 1rem 0 1.2rem; }
.kicker, .eyebrow { display: flex; align-items: center; gap: .55rem; margin: 0; color: var(--accent); font-family: var(--mono); font-size: .72rem; font-weight: 500; letter-spacing: .18em; text-transform: uppercase; }
.kicker::before, .eyebrow::before { content: ""; width: 1.4rem; height: 1px; background: currentColor; display: inline-block; flex: 0 0 auto; }
.lede { max-width: 42rem; color: var(--muted); font-family: var(--serif); font-size: 1.12rem; }
.helper-text { color: var(--muted); font-size: .88rem; }
.card { margin: 1rem 0; padding: 1.1rem 1.2rem; border: 1px solid var(--rule); border-radius: 18px; background: var(--surface); box-shadow: 0 4px 14px rgba(5, 46, 43, .045); }
.card h3:first-child { margin-top: 0; }
.welcome-card { border-top: 4px solid var(--green); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; margin-top: 1rem; }
.step { display: flex; gap: .55rem; align-items: flex-start; padding: .6rem; border: 1px solid var(--rule); border-radius: 12px; background: #fbfcfb; font-size: .82rem; line-height: 1.35; }
.step span { display: grid; flex: 0 0 1.65rem; place-items: center; width: 1.65rem; height: 1.65rem; border-radius: 50%; background: var(--accent); color: #fff; font-family: var(--mono); font-weight: 600; }
.step p { margin: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; padding-bottom: .8rem; border-bottom: 1px solid var(--rule); color: var(--muted); font-size: .82rem; }
.topbar-brand { color: var(--accent-dark); font-family: var(--serif); font-size: 1.1rem; font-weight: 600; text-decoration: none; white-space: nowrap; }
.topbar strong { overflow: hidden; color: var(--accent); font-family: var(--mono); font-size: .74rem; font-weight: 500; letter-spacing: .02em; text-overflow: ellipsis; white-space: nowrap; }
.topbar .text-button { flex: 0 0 auto; margin: 0; padding: .35rem .55rem; font-size: .76rem; }
#view:focus { outline: none; }
nav.tabs { position: fixed; z-index: 10; right: 0; bottom: 0; left: 0; display: flex; padding: .25rem max(.25rem, env(safe-area-inset-left)) max(.35rem, env(safe-area-inset-bottom)); border-top: 1px solid var(--rule); background: rgba(255, 255, 255, .97); box-shadow: 0 -3px 14px rgba(23, 50, 58, .08); font-family: var(--sans); }
nav.tabs button { display: flex; flex: 1; min-height: 3.3rem; flex-direction: column; align-items: center; justify-content: center; gap: .12rem; padding: .3rem .15rem; border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: .68rem; }
nav.tabs button span:first-child { font-size: 1.1rem; line-height: 1; }
nav.tabs button.active { color: var(--accent); font-weight: 800; }
nav.tabs button.active span:first-child { transform: translateY(-1px); }
label { display: block; margin-top: .7rem; color: var(--muted); font-size: .82rem; font-weight: 700; }
label span { font-weight: 400; }
textarea, input[type=text], select { display: block; width: 100%; margin: .25rem 0 .7rem; padding: .68rem .72rem; border: 1px solid #b9cbc7; border-radius: 10px; background: #fff; color: var(--ink); font-family: var(--sans); font-size: 1rem; }
textarea { min-height: 5rem; resize: vertical; }
button.primary, button.secondary { margin: .25rem 0; padding: .72rem 1.35rem; border-radius: 100px; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
button.primary { border: 1px solid var(--accent); background: var(--accent); color: #fff; }
button.primary:hover { background: var(--accent-dark); box-shadow: 0 10px 24px rgba(5, 46, 43, .18); transform: translateY(-1px); }
button.secondary { border: 1px solid #aebfbc; background: #fff; color: var(--ink); }
button.secondary:hover { border-color: var(--accent); background: var(--accent-soft); }
.text-button { border: 0; background: transparent; color: var(--blue); text-decoration: underline; text-underline-offset: .15em; cursor: pointer; }
.text-button:hover { color: var(--warm); }
button:disabled { opacity: .5; cursor: not-allowed; }
.action-stack { display: grid; gap: .5rem; margin-top: .5rem; }
.teacher-tools { margin-top: .8rem; padding-top: .7rem; border-top: 1px solid var(--rule); }
.teacher-tools summary { color: var(--muted); cursor: pointer; font-size: .86rem; font-weight: 700; }
.mission-context { border-left: 4px solid var(--blue); }
.center-text { text-align: center; }
.guided-path { display: grid; gap: .55rem; }
.guided-step { display: flex; align-items: center; gap: .7rem; min-height: 4.2rem; padding: .7rem .8rem; border: 1px solid var(--rule); border-radius: 8px; background: var(--surface); color: var(--ink); text-decoration: none; box-shadow: 0 2px 8px rgba(5, 46, 43, .035); }
.guided-step:hover { border-color: var(--blue); background: #fbfefd; }
.guided-step > span:nth-child(2) { display: grid; gap: .08rem; }
.guided-step strong { font-size: .95rem; }
.guided-step small { color: var(--muted); font-size: .8rem; }
.guided-number { display: grid; flex: 0 0 2rem; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: var(--accent-soft); color: var(--accent-dark); font-family: var(--sans); font-weight: 800; }
.guided-step.done .guided-number { background: var(--green); color: var(--accent-dark); }
.guided-arrow { margin-left: auto; color: var(--blue); font-size: 1.25rem; }
.guided-progress { height: .35rem; margin: 1rem 0 1.25rem; overflow: hidden; border-radius: 99px; background: var(--accent-soft); }
.guided-progress span { display: block; height: 100%; background: var(--blue); }
.course-summary { border-top: 4px solid var(--green); }
.module-list { display: grid; gap: .55rem; }
.module-item { display: flex; align-items: center; gap: .7rem; min-height: 4rem; padding: .65rem .75rem; border: 1px solid var(--rule); border-radius: 8px; background: var(--surface); color: var(--ink); text-decoration: none; box-shadow: 0 2px 8px rgba(5, 46, 43, .035); }
.module-item:hover { border-color: var(--blue); background: #fbfefd; }
.module-item.done { border-left: 4px solid var(--green); }
.module-item > span:nth-child(2) { display: grid; gap: .08rem; }
.module-item strong { font-size: .93rem; }
.module-item small { color: var(--muted); font-size: .78rem; }
.module-number { display: grid; flex: 0 0 2.15rem; place-items: center; width: 2.15rem; height: 2.15rem; border-radius: 50%; background: var(--accent-soft); color: var(--accent-dark); font-family: var(--mono); font-size: .72rem; font-weight: 700; }
.module-item.done .module-number { background: var(--green); }
.module-lesson { border-left: 4px solid var(--blue); }
.module-desafio { border-left: 4px solid var(--warm); }
.module-quiz { border-top: 4px solid var(--coral); }
.quiz-options { display: grid; gap: .55rem; margin-top: .8rem; }
.quiz-option { width: 100%; text-align: left; }
.quiz-option.quiz-correct { border-color: var(--accent); background: var(--accent-soft); }
.quiz-option.quiz-wrong { border-color: var(--warm); background: var(--warm-soft); }
.quiz-feedback { margin-top: .8rem; padding: .7rem .8rem; border-radius: 8px; font-size: .9rem; }
.quiz-feedback.correct { background: var(--accent-soft); color: #175b43; }
.quiz-feedback.wrong { background: var(--warm-soft); color: #8b471e; }
.unit-journey { margin: 1.5rem 0 2rem; }
.unit-heading { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .75rem; margin-bottom: .7rem; }
.unit-heading .eyebrow { margin-bottom: .2rem; }
.unit-heading h3 { margin: 0; font-family: var(--serif); font-size: 1.35rem; font-weight: 500; }
.unit-heading .helper-text { margin: .2rem 0 0; }
.unit-marker { display: grid; flex: 0 0 2.45rem; place-items: center; width: 2.45rem; height: 2.45rem; border: 2px solid var(--accent); border-radius: 50%; background: var(--surface); color: var(--accent); font-family: var(--mono); font-weight: 700; }
.unit-count { align-self: start; padding-top: .25rem; color: var(--muted); font-family: var(--mono); font-size: .72rem; }
.module-tag { display: inline-block; width: fit-content; margin-top: .22rem; color: var(--warm); font-family: var(--mono); font-size: .68rem; text-transform: uppercase; }
.lab-brief { border-top: 4px solid var(--coral); }
.lab-controls { border-left: 4px solid var(--blue); }
.lab-control { margin: 1rem 0 1.25rem; }
.lab-control label { display: flex; align-items: center; justify-content: space-between; gap: .7rem; margin-top: 0; }
.lab-control output { color: var(--accent); font-family: var(--mono); font-size: .75rem; font-weight: 600; text-transform: uppercase; }
input[type=range] { display: block; width: 100%; min-height: 2.75rem; accent-color: var(--accent); cursor: pointer; }
.lab-results-card { border-top: 4px solid var(--green); }
.lab-result { margin: 1rem 0; }
.lab-result-head { display: flex; justify-content: space-between; gap: 1rem; font-size: .9rem; }
.lab-result-head span { color: var(--muted); font-family: var(--mono); font-size: .75rem; }
.lab-meter { height: .65rem; margin: .4rem 0 .25rem; overflow: hidden; border-radius: 99px; background: var(--accent-soft); }
.lab-meter span { display: block; height: 100%; border-radius: inherit; }
.meter-warm { background: var(--blue); }
.meter-blue { background: #4b9ed8; }
.meter-green { background: var(--green); }
.meter-coral { background: var(--coral); }
.lab-result small, .scenario-log small { display: block; color: var(--muted); font-size: .78rem; line-height: 1.4; }
.lab-reading { margin-top: 1.1rem; padding: .8rem; border-radius: 8px; background: #f5f8f7; font-family: var(--serif); font-size: 1.05rem; }
.scenario-log { display: flex; align-items: center; justify-content: space-between; gap: .8rem; margin: .6rem 0; padding: .8rem 1rem; }
.scenario-log strong { font-size: .9rem; }
.evidence-choice { margin: .75rem 0; padding: .9rem; border: 1px solid var(--rule); border-radius: 8px; background: var(--surface); }
.evidence-choice h3 { margin-top: .65rem; }
.evidence-choice-top { display: flex; align-items: center; gap: .25rem; }
.step-actions { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; margin: 1.25rem 0; }
.step-actions button { margin: 0; }
.connection-choice { margin: .75rem 0; border-left: 4px solid var(--blue); }
.pill { display: inline-block; margin-right: .3rem; padding: .18rem .6rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent-dark); font-family: var(--mono); font-size: .68rem; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }
.pill.warn { background: var(--warm-soft); color: #8b471e; }
.pill.dentro-fora { background: var(--warm); color: #fff; }
.evidencia-status { color: var(--muted); font-size: .82rem; }
.rubrica { font-family: var(--sans); font-size: .85rem; }
.rubrica li.ok { color: #2a6b3a; }
.rubrica li.pendente { color: #8b471e; }
.pontos-tipo { display: grid; grid-template-columns: 1fr auto; gap: .25rem 1rem; font-family: var(--sans); font-size: .85rem; }
.report-actions { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0; }
.report-actions button { margin: 0; }
.report-card { margin: 1rem 0 1.6rem; padding: 1.2rem; border: 1px solid var(--rule); border-radius: 8px; background: #fff; box-shadow: 0 8px 24px rgba(5, 46, 43, .06); }
.report-card h1 { margin-bottom: .25rem; font-size: 2rem; line-height: 1.1; }
.report-card h2 { margin-top: 1.4rem; padding-top: 1rem; border-top: 1px solid var(--rule); font-family: var(--sans); font-size: 1rem; font-weight: 800; }
.report-meta, .report-empty { color: var(--muted); font-size: .9rem; }
.report-list { padding-left: 1.2rem; }
.report-list li { margin: .55rem 0; }
.tutorial-backdrop { position: fixed; z-index: 30; inset: 0; display: grid; place-items: center; padding: 1rem; background: rgba(5, 46, 43, .58); }
.tutorial { width: min(100%, 30rem); max-height: min(90vh, 40rem); overflow: auto; padding: 1.25rem; border: 1px solid var(--rule); border-radius: 18px; background: var(--surface); box-shadow: 0 18px 50px rgba(16, 42, 47, .25); }
.tutorial-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.tutorial-close { min-height: 2.25rem; padding: .35rem .55rem; border: 1px solid var(--rule); border-radius: 8px; background: #fff; color: var(--muted); cursor: pointer; }
.tutorial-step { display: grid; place-items: center; width: 2.3rem; height: 2.3rem; margin: .8rem 0; border-radius: 50%; background: var(--coral); color: #fff; font-family: var(--mono); font-weight: 600; }
.tutorial h2 { max-width: 23rem; }
.tutorial p { color: var(--muted); }
.tutorial-progress { height: .35rem; margin: 1rem 0; overflow: hidden; border-radius: 99px; background: var(--accent-soft); }
.tutorial-progress span { display: block; height: 100%; background: var(--accent); transition: width .2s ease; }
.tutorial-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem; margin-top: 1.2rem; }
.tutorial-actions .text-button { margin-right: auto; }
/* ---------- v2: Unidade II ---------- */
body.sem-abas nav.tabs, body.sem-abas .topbar { display: none; }
.voltar { display: inline-block; margin: 0 0 .6rem; padding: 0; }
.problema-card { border-top: 4px solid var(--coral); }
.problema-card h2, .pergunta { font-family: var(--serif); font-size: 1.35rem; line-height: 1.25; color: var(--accent-dark); }
.titulo-encontro { font-size: 2rem; }
.ideias { margin: .4rem 0 0; padding-left: 1.3rem; }
.ideias li { margin: .45rem 0; font-size: 1.02rem; }
.botao-link { display: inline-block; margin: .5rem 0; padding: .72rem 1.35rem; border-radius: 100px; background: var(--accent); color: #fff; font-weight: 650; font-size: .92rem; text-decoration: none; }
.botao-link:hover { background: var(--accent-dark); }
.concluido { margin-top: 1rem; background: var(--green); }
.sim-card canvas { display: block; width: 100%; height: auto; aspect-ratio: 1; border-radius: 12px; cursor: crosshair; touch-action: manipulation; }
.legenda { margin: .6rem 0 0; color: var(--muted); font-size: .8rem; }
.aviso { margin: .6rem 0 0; padding: .6rem .8rem; border-radius: 8px; background: var(--warm-soft); color: #8b471e; font-size: .88rem; }
.controles { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.controles select { width: auto; flex: 1 1 10rem; margin: 0; }
.controles button { margin: 0; }
.medidas { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; margin: .6rem 0; }
.medidas div { padding: .6rem; border-radius: 10px; background: var(--accent-soft); }
.medidas b { display: block; font-family: var(--serif); font-size: 1.5rem; font-weight: 600; line-height: 1.1; }
.medidas span { color: var(--muted); font-size: .76rem; }
.tabela-wrap { overflow-x: auto; }
.tabela { width: 100%; border-collapse: collapse; font-size: .88rem; }
.tabela th, .tabela td { padding: .45rem .5rem; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
.tabela thead th { color: var(--muted); font-family: var(--mono); font-size: .7rem; font-weight: 500; text-transform: uppercase; letter-spacing: .06em; }
.tabela .num, .tabela b.num { font-family: var(--mono); white-space: nowrap; }
.tabela small { color: var(--muted); }
.tabela abbr { text-decoration: none; font-family: var(--mono); }
.tabela.entrada input { width: 100%; min-width: 6rem; margin: 0; padding: .45rem .5rem; border: 1px solid #b9cbc7; border-radius: 8px; font: inherit; }
.tabela.entrada th[scope=row] { font-weight: 500; font-size: .84rem; }
.grafico { display: block; width: 100%; height: auto; }
.grafico .eixo { stroke: #9fb3ae; stroke-width: 1; }
.grafico .linha { fill: none; stroke: var(--blue); stroke-width: 2.5; stroke-linejoin: round; }
.grafico text { fill: var(--muted); font-family: var(--mono); font-size: 11px; }
.jogo-area svg { display: block; width: 100%; height: auto; }
.trecho { cursor: pointer; }
.trecho .alvo { stroke: transparent; stroke-width: 44; }
.trecho .rio { stroke: var(--blue); stroke-width: 5; stroke-linecap: round; }
.trecho circle { fill: #fff; stroke: var(--blue); stroke-width: 2; }
.trecho text { fill: var(--ink); font-family: var(--mono); font-size: 21px; font-weight: 600; pointer-events: none; }
.trecho:focus { outline: none; }
.trecho:focus circle, .trecho:hover circle { stroke-width: 3.5; }
.trecho.certo circle { fill: var(--accent-soft); stroke: var(--accent); }
.trecho.errado circle { fill: var(--warm-soft); stroke: var(--warm); }
.nascente { fill: var(--accent); }
.rotulo { fill: var(--muted); font-family: var(--mono); font-size: 12px; }
.duas-colunas { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .8rem; }
.grande { font-family: var(--serif); font-size: 2rem; font-weight: 600; margin: .2rem 0; }
.ferramenta { margin-bottom: .55rem; }
.roteiro summary { display: flex; align-items: center; gap: .7rem; cursor: pointer; list-style: none; }
.roteiro summary::-webkit-details-marker { display: none; }
.roteiro summary > span:nth-child(2) { display: grid; }
.roteiro summary small { color: var(--muted); font-size: .78rem; }
.passos { margin: .8rem 0 0; padding: 0; list-style: none; }
.passos li { display: flex; gap: .6rem; align-items: flex-start; padding: .45rem 0; border-top: 1px solid var(--rule); }
.passos input[type=checkbox] { flex: 0 0 auto; width: 1.25rem; height: 1.25rem; min-height: 0; margin: .15rem 0 0; accent-color: var(--accent); }
.passos label { margin: 0; color: var(--ink); font-size: .92rem; font-weight: 400; line-height: 1.45; }
.ajuda { border: 1px solid #bfe0f7; background: #f3faff; }
.ajuda summary { display: flex; align-items: center; gap: .6rem; cursor: pointer; font-weight: 700; color: var(--accent-dark); list-style: none; }
.ajuda summary::-webkit-details-marker { display: none; }
.ajuda summary::after { content: "mostrar"; margin-left: auto; color: var(--blue); font-family: var(--mono); font-size: .7rem; font-weight: 500; }
.ajuda[open] summary::after { content: "ocultar"; }
.ajuda-icone { display: grid; flex: 0 0 1.6rem; place-items: center; width: 1.6rem; height: 1.6rem; border-radius: 50%; background: var(--blue); color: #fff; font-family: var(--mono); font-size: .85rem; }
.ajuda-passos { margin: .7rem 0 0; padding-left: 1.3rem; }
.ajuda-passos li { margin: .4rem 0; font-size: .93rem; }
.ajuda-sub { margin: .9rem 0 0; color: var(--accent); font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.ajuda-dica { margin: .8rem 0 0; padding: .6rem .75rem; border-radius: 8px; background: #fff; color: var(--muted); font-size: .88rem; }
.ajuda-dica::before { content: "Dica: "; color: var(--accent-dark); font-weight: 700; }
.explica { margin: .2rem 0 .6rem; color: var(--muted); font-size: .86rem; font-style: italic; }
.dica-campo { display: block; margin-top: .15rem; color: var(--muted); font-size: .72rem; font-weight: 400; line-height: 1.3; }
@media (max-width: 520px) { .medidas { grid-template-columns: repeat(2, 1fr); } .duas-colunas { grid-template-columns: 1fr; } body { padding: .9rem .75rem 6rem; } .start-shell { padding-top: 1vh; } .steps { grid-template-columns: 1fr; } .step { min-height: 3rem; } .topbar { align-items: flex-start; flex-direction: column; gap: .15rem; } .topbar strong { max-width: 100%; } .card { padding: .9rem; } }
@media (min-width: 700px) { body { padding-top: 2.5rem; } .start-shell { padding-top: 4vh; } .action-stack { display: flex; flex-wrap: wrap; align-items: center; } }
@media print {
  body { max-width: none; padding: 0; background: #fff; color: #000; }
  .topbar, nav.tabs, .report-actions, .tutorial-backdrop { display: none !important; }
  .report-card { margin: 0; padding: 0; border: 0; box-shadow: none; }
  .report-card h1 { color: #000; font-size: 26pt; }
  .report-card h2 { break-after: avoid; color: #000; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }