*,
*::before,
*::after {
  box-sizing: inherit;
}

/* ── Typography scale (3 levels only) ── */
h1 { font-size: 2.4rem;  font-weight: 700; margin: 0 0 0.4em; }
h2 { font-size: 1.6rem;  font-weight: 600; margin: 0 0 0.3em; }
h3, h4, h5, h6 { font-size: 1.2rem; font-weight: 600; margin: 0 0 0.25em; }
p, li, label, td, th { font-size: 1.05rem; line-height: 1.6; }
small, .text-sm { font-size: 0.92rem; }

body {
  font-family: "Arial", sans-serif;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  background-image: url(../Imagens/fundo.jpg);
  background-color: #f4f4f4;
  display: flex;
  flex-direction: column;
  align-items: stretch; /* ensures all children fill full width consistently across browsers */
  min-height: 100vh;
}

nav {
  background-color: #2c3e50; /* Agora a cor de fundo do cabeçalho é a mesma do rodapé */
  color: #ecf0f1; /* Cor de texto no cabeçalho */
  padding: 1em;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

main {
  width: 90%;
  max-width: 1200px;
  padding: 20px;
  margin-left: auto;
  margin-right: auto;
}

nav ul {
  list-style: none;
  display: flex;
}

a.nav-link {
  text-decoration: none;
  color: #ecf0f1;
  padding: 1em;
  margin: 0 10px;
  font-size: 1.15rem;
}

.hero {
  text-align: center;
  padding: 1em;
  background-color: #27ae60;
  color: #ecf0f1;
}

.hero h1 { font-size: 2.4rem; }
.hero h2 { font-size: 1.2rem; font-weight: 400; opacity: 0.88; }

.hero2 {
  text-align: center;
  padding: 1em;
  background-color: #27ae60;
  color: #ecf0f1;
}

.hero2 p { font-size: 1.15rem; margin: 0 0 0.75em; }

.cta-button {
  display: inline-block;
  padding: 10px 20px;
  font-size: 1.2em;
  text-decoration: none;
  color: #ecf0f1; /* Cor do texto do botão */
  background-color: #3498db; /* Cor de fundo do botão */
  border-radius: 5px;
}

footer {
  text-align: center;
  padding: 1em;
  background-color: #2c3e50; /* Verde escuro para o rodapé */
  color: #ecf0f1; /* Cor de texto no rodapé */
  position: relative;
  bottom: 0;
  width: 100%;
  margin-top: auto; /* Empurra o rodapé para o final da página */
}

#carouselExampleAutoplaying {
  overflow: hidden;
}

#carouselExampleAutoplaying .carousel-item img {
  width: 100%;
  height: auto;
  display: block;
}

/* Quiz slide acompanha a proporção das imagens do Canva (1841×517) */
#carouselExampleAutoplaying .quiz-slide {
  aspect-ratio: 1841 / 517;
}

#carouselExampleAutoplaying .quiz-slide > div {
  height: 100%;
  width: 100%;
}