/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Corpo */
body {
  font-family: Arial, sans-serif;
  font-size: 20px;
  line-height: 1.6;
  color: #333;
  background-color: #f4f4f4;
  padding: 10px 10px 0;
}

@media (max-width: 900px) {
  body {
    padding: 5px 4px 0;
  }
}

@media (max-width: 600px) {
  body {
    padding: 5px;
  }
}

/* Cabeçalhos */
h2, h3 {
  margin: 20px 0 10px;
  color: #444;
}

/* Layout */
main {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.text-center {
  text-align: center;
}

.text-content {
  text-align: justify;
}

.text-content p {
  text-indent: 2em;
}

.text-content ul {
  margin-left: 5em;
  margin-top: 1em;
  margin-bottom: 1em;
}

/* Listas de navegação (catálogo e página) */
.catalog ul,
.page-nav ul {
  list-style: none;
  justify-content: left;
  gap: 1.5rem;
  padding: 0;
  margin: 0;
}

.catalog li a,
.page-nav li a {
  text-decoration: none;
  color: #333;
  padding: 0.5rem;
  transition: background-color 0.3s;
}

.catalog li a {
  font-weight: bold;
}

.page-nav li a {
  font-style: italic;
}

.catalog li a:hover,
.page-nav li a:hover {
  background-color: #8c8b8b;
  border-radius: 4px;
}

#text-tools {
  position: sticky;
  top: 0;
  background: #f4f4f4; /* Cor de fundo para não “cortar” o texto */
  z-index: 999; /* Para aparecer acima do conteúdo */
  padding: 0.5em 1em;
}

.buttons-bar {
  display: flex;
  gap: 1rem;
  margin-top: 1em;
}

.buttons-bar li {
  list-style: none;
}

blockquote {
  padding: 1em 2.5em 1em 2.5em;
  font-style: italic;
}

@media (max-width: 600px) {
  blockquote {
    padding: 1em 2em;
  }
}

/* Botões */
button {
  background-color: #243d4a;
  color: #fff;
  border: none;
  padding: 10px 20px;
  cursor: pointer;
  border-radius: 5px;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #212121;
}

/* Links de referência */
.ref-link {
  font-size: 0.6em;
  color: #022c7c;
  text-decoration: none;
}

/* Tooltip flutuante */
#ref-tooltip {
  position: absolute;
  z-index: 9999;
  background: #fffbe7;
  color: #333;
  border: 1px solid #d3cfc7;
  border-radius: 6px;
  padding: 10px 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  font-size: 0.95em;
  max-width: 260px;
  min-width: 120px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

#ref-tooltip.active {
  opacity: 1;
  visibility: visible;
}

@media (hover: none) and (pointer: coarse) {
  #ref-tooltip {
    font-size: 1.1em;
    padding: 5px 10px;
  }
}

/* Slider */
#padding-slider-container {
  margin: 1em 0;
  display: flex;
  align-items: center;
  gap: 0.5em;
}

/* Destaques */
.highlighted {
  background: yellow;
  color: inherit;
}

.img-centralizada {
  display: block;
  margin: 0 auto;
  justify-content: center;
}

/* ==== Voltar ao Hub ==== */
.voltar {
  margin-top: 0.75rem;
}

.voltar a {
  color: #333;
  text-decoration: none;
  font-weight: bold;
  display: inline-block;
  padding: 0.25rem 0.5rem;
  margin-left: -0.5rem;
  border-radius: 4px;
  transition: background-color 0.3s;
}

.voltar a:hover {
  background-color: #8c8b8b;
}