:root {
  --forest: #0d351c;
  --forest-deep: #082413;
  --forest-soft: #315f37;
  --leaf: #76a064;
  --mint: #d9e8cf;
  --cream: #fff8e9;
  --paper: #fffcf3;
  --ink: #163221;
  --muted: #61705e;
  --line: rgba(13, 53, 28, 0.14);
  --shadow: 0 18px 55px rgba(8, 36, 19, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Trebuchet MS", "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  background: linear-gradient(180deg, var(--cream), #f4f8ed 48%, var(--paper));
}

a {
  color: inherit;
  text-decoration: none;
}

/* Some conteúdo visualmente, mas continua audível para leitor de tela. */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

img {
  display: block;
  max-width: 100%;
}

/*
  Anel de foco único e consistente para todo elemento interativo do site.
  --leaf tem contraste suficiente sobre fundo escuro (header/hero) e claro
  (conteúdo), então um só valor cobre o site inteiro sem overrides por
  componente.
*/
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--leaf);
  outline-offset: 2px;
  border-radius: 0.25rem;
}

.site-header,
.course-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  background: var(--forest);
}

.brand-link img {
  width: min(38rem, 76vw);
  height: clamp(6rem, 13vw, 9.5rem);
  object-fit: contain;
}

.brand-link.compact img {
  width: 20rem;
  height: 5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.72rem 1rem;
  border-radius: 0.5rem;
  font-weight: 800;
  transition: filter 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.btn-light,
.btn-primary {
  background: var(--cream);
  color: var(--forest);
}

.btn-light:hover,
.btn-primary:hover {
  filter: brightness(0.94);
}

.btn-ghost {
  border: 1px solid rgba(255, 248, 233, 0.5);
  color: var(--cream);
}

.btn-ghost:hover {
  background: rgba(255, 248, 233, 0.14);
  border-color: rgba(255, 248, 233, 0.8);
}

.layout-home {
  background: var(--forest);
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.8fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  min-height: calc(100vh - 8.6rem);
  padding: clamp(2rem, 5vw, 5rem) clamp(1rem, 6vw, 6rem);
  color: var(--cream);
  background: linear-gradient(135deg, rgba(13, 53, 28, 0.95), rgba(8, 36, 19, 0.98));
}

.eyebrow,
.module-kicker {
  display: inline-block;
  margin-bottom: 0.7rem;
  color: var(--forest-soft);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.home-hero .eyebrow {
  color: var(--mint);
}

.hero-copy h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 5.7rem);
  line-height: 0.98;
}

.hero-copy p {
  max-width: 43rem;
  margin-top: 1.35rem;
  color: rgba(255, 248, 233, 0.86);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

/*
  Faixa de inscrições: informação real, mas deliberadamente fora do hero e
  com peso visual menor que os CTAs de aprendizagem — texto/link sublinhado
  em vez de botão sólido, para não competir com "Começar agora" na primeira
  tela nem soar como contagem regressiva.
*/
.enrollment-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1rem;
  padding: 0.9rem clamp(1rem, 6vw, 6rem);
  background: var(--mint);
  border-bottom: 1px solid var(--line);
}

.enrollment-banner .enrollment-tag {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: var(--leaf);
  color: var(--forest-deep);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.enrollment-banner p {
  margin: 0;
  color: var(--forest);
  font-size: 0.98rem;
}

.enrollment-link {
  margin-left: auto;
  color: var(--forest);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.enrollment-link:hover {
  color: var(--forest-deep);
}

.hero-panel {
  display: grid;
  gap: 1.25rem;
  padding: clamp(1rem, 3vw, 1.5rem);
  border-radius: 0.5rem;
  background: rgba(255, 248, 233, 0.96);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.hero-panel img {
  width: 100%;
  aspect-ratio: 16 / 10;
  padding: 1rem;
  border-radius: 0.4rem;
  background: var(--forest);
  object-fit: contain;
}

.course-note {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.course-note strong {
  display: block;
  color: var(--forest);
  font-size: 1.2rem;
}

.course-note span {
  color: var(--muted);
}

.content-band {
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 6vw, 6rem);
  background: var(--paper);
}

.section-heading {
  max-width: 44rem;
}

.section-heading h2 {
  margin: 0;
  color: var(--forest);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.05;
}

.section-heading p {
  color: var(--muted);
  font-size: 1.08rem;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.module-card {
  min-height: 12rem;
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: #fff;
  box-shadow: 0 12px 32px rgba(13, 53, 28, 0.08);
}

.module-card:hover {
  border-color: rgba(49, 95, 55, 0.4);
  box-shadow: var(--shadow);
}

.module-card h3 {
  margin: 0;
  color: var(--forest);
  font-size: 1.45rem;
  line-height: 1.15;
}

.module-card p {
  color: var(--muted);
}

/*
  Módulo recomendado para começar: diferenciado por inversão de valor
  (cartão sólido verde-mata), não por uma segunda cor de destaque — o
  Broto-Verde já é usado pela tag de inscrição nesta mesma página.
*/
.module-card--featured {
  background: var(--forest);
  border-color: var(--forest);
}

.module-card--featured:hover {
  background: var(--forest-deep);
  border-color: var(--forest-deep);
}

.module-card--featured .module-kicker {
  color: var(--mint);
}

.module-card--featured h3 {
  color: var(--cream);
}

.module-card--featured p {
  color: rgba(255, 248, 233, 0.78);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding: 1.2rem clamp(1rem, 6vw, 6rem);
  background: var(--forest-deep);
  color: rgba(255, 248, 233, 0.82);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

/* Indica que o link sai do site (abre em nova aba) sem depender só do texto. */
.external-icon {
  margin-left: 0.3em;
  vertical-align: -0.1em;
}

.site-footer a:hover {
  color: var(--cream);
}

.page-wrapper {
  display: grid;
  grid-template-columns: minmax(16rem, 19rem) minmax(0, 1fr);
  min-height: calc(100vh - 5.8rem);
  position: relative;
}

.sidebar-modulos {
  height: calc(100vh - 5.8rem);
  padding: 1.4rem;
  position: sticky;
  top: 0;
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: #f1f7ea;
}

.sidebar-modulos h2 {
  margin: 0 0 0.5rem;
  color: var(--forest);
  font-size: 1rem;
  text-transform: uppercase;
}

.sidebar-hint {
  margin: 0 0 1.1rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.4;
}

.dropdown-modulo {
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--line);
}

.dropdown-modulo summary {
  padding: 0.65rem 0.55rem;
  border-radius: 0.4rem;
  color: var(--forest);
  cursor: pointer;
  font-weight: 800;
}

.dropdown-modulo summary:hover {
  background: rgba(118, 160, 100, 0.16);
}

.topicos-lista {
  display: grid;
  gap: 0.25rem;
  margin: 0.2rem 0 0.7rem;
  padding-left: 1rem;
  list-style: none;
}

.topicos-lista a {
  display: block;
  padding: 0.46rem 0.55rem;
  border-radius: 0.35rem;
  color: var(--muted);
}

.topicos-lista a:hover {
  background: rgba(255, 248, 233, 0.95);
  color: var(--forest);
}

/* Tópico da aula que está sendo lida agora — resposta ao "onde estou". */
.topicos-lista a.active {
  background: rgba(118, 160, 100, 0.22);
  color: var(--forest);
  font-weight: 800;
}

.conteudo-aula {
  width: 100%;
  max-width: 52rem;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4rem);
}

.sobre-page {
  width: 100%;
  max-width: 52rem;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4rem);
}

.sobre-hero {
  margin-bottom: 2rem;
  padding-bottom: 1.3rem;
  border-bottom: 1px solid var(--line);
}

.sobre-hero h1 {
  margin: 0;
  color: var(--forest);
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.05;
}

.sobre-conteudo {
  padding: clamp(1.4rem, 4vw, 2.4rem);
}

.cabecalho-aula {
  margin-bottom: 2rem;
  padding-bottom: 1.3rem;
  border-bottom: 1px solid var(--line);
}

.cabecalho-aula h1 {
  margin: 0;
  color: var(--forest);
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.05;
}

.corpo-aula {
  padding: clamp(1.4rem, 4vw, 2.4rem);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 16px 45px rgba(13, 53, 28, 0.08);
}

.corpo-aula h1,
.corpo-aula h2,
.corpo-aula h3 {
  color: var(--forest);
}

.corpo-aula p,
.corpo-aula li {
  color: #253929;
  font-size: 1.2rem;
}

/*justifica o texto do conteúdo da aula*/
.corpo-aula p {
  text-align: justify;
  text-indent: 2rem;
}

.corpo-aula p:first-child {
  text-indent: 0;
}

/*deixa os titulos mais bonitos*/
.corpo-aula h1 {
  color: var(--forest);
  font-size: 2.2rem;
  margin-top: 0;
  margin-bottom: 1rem;
}

.corpo-aula h2 {
  color: var(--forest);
  font-size: 1.6rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.4rem;
}

.corpo-aula h3 {
  color: var(--forest-soft);
  font-size: 1.4rem;
  font-weight: 800;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.corpo-aula strong {
  color: var(--forest);
  font-weight: 800;
}

/*
  Links dentro do conteúdo de aula herdavam `text-decoration: none` do
  reset global e ficavam visualmente idênticos ao texto ao redor —
  nada indicava que eram clicáveis.
*/
.corpo-aula a {
  color: var(--forest-soft);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.corpo-aula a:hover {
  color: var(--forest);
}

.corpo-aula blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-left: 5px solid var(--leaf);
  background: #f1f7ea;
  color: var(--forest);
  border-radius: 0.4rem;
}

@media (max-width: 860px) {
  .site-header,
  .course-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .home-hero,
  .page-wrapper {
    grid-template-columns: 1fr;
  }

  .sidebar-modulos {
    height: auto;
    position: static;
  }

  .page-wrapper,
  .page-wrapper.sidebar-collapsed {
    grid-template-columns: 1fr;
  }

  .sidebar-icon-toggle {
    left: 1rem;
    top: 1rem;
    transform: none;
  }
}

@media (max-width: 560px) {
  .brand-link img,
  .brand-link.compact img {
    width: min(100%, 18rem);
    height: auto;
  }

  .btn,
  .header-actions {
    width: 100%;
  }

  .conteudo-aula {
    padding: 1.2rem;
  }
}
.sidebar-icon-toggle {
  position: absolute;
  left: 19rem;
  top: 1rem;
  transform: translateX(-50%);
  z-index: 20;

  min-height: 2.75rem;
  padding: 0.6rem 1rem;
  border: 0;
  border-radius: 0.5rem;

  background: var(--forest);
  color: var(--cream);
  cursor: pointer;

  display: inline-flex;
  align-items: center;
  gap: 0.5rem;

  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 800;
  white-space: nowrap;

  transition: background-color 0.15s ease;
}

.sidebar-icon-toggle:hover {
  background: var(--forest-deep);
}

.page-wrapper.sidebar-collapsed .sidebar-icon-toggle {
  left: 1.5rem;
  top: 1rem;
  transform: none;
}

.icon-sidebar-closed {
  display: none;
}

.page-wrapper.sidebar-collapsed {
  grid-template-columns: minmax(0, 1fr);
}

.page-wrapper.sidebar-collapsed .sidebar-modulos {
  display: none;
}

.page-wrapper.sidebar-collapsed .conteudo-aula {
  max-width: 60rem;
}

.page-wrapper.sidebar-collapsed .icon-sidebar-open {
  display: none;
}

.page-wrapper.sidebar-collapsed .icon-sidebar-closed {
  display: inline;
}

/*formatando colunas*/
.corpo-aula table {
  width: 100%;
  margin: 2rem 0;
  border-collapse: collapse;
  font-size: 1rem;
}

.corpo-aula th {
  background: var(--forest);
  color: var(--cream);
  text-align: left;
  padding: 0.9rem 1rem;
}

.corpo-aula td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.corpo-aula tr:nth-child(even) td {
  background: #f1f7ea;
}

/*botão de anterior e próximo*/
.aula-footer-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.footer-nav-left {
  justify-self: start;
}

.footer-nav-right {
  justify-self: end;
}

.footer-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--forest);
  border-radius: 0.5rem;
  color: var(--forest);
  background: transparent;
  font-weight: 800;
  text-align: center;
}

.footer-nav-btn:hover {
  background: var(--forest);
  color: var(--cream);
}

/*mobile*/
@media (max-width: 700px) {
  .aula-footer-nav {
    grid-template-columns: 1fr;
  }

  .footer-nav-left,
  .footer-nav-right {
    justify-self: stretch;
  }

  .footer-nav-btn {
    width: 100%;
  }
}