:root {
  --crema: #FAF7F2;
  --crema-osc: #F0EAE0;
  --tinta: #2A2622;
  --tinta-suave: #5C564D;
  --acento: #8C6A4F;
  --linea: #E2D9CA;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--crema);
  color: var(--tinta);
  overflow-x: hidden;
  font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
}

header {
  display: flex;
  align-items: center;
  padding: 28px 40px;
  border-bottom: 1px solid var(--linea);
}

.buttonInicio {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 13px;
  letter-spacing: 0.5px;
  color: var(--tinta-suave);
  background: transparent;
  border: 1px solid var(--linea);
  border-radius: 2px;
  padding: 8px 18px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.buttonInicio:hover {
  border-color: var(--acento);
  color: var(--acento);
}

.tituloInfo {
  flex: 1;
  text-align: center;
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 600;
  font-style: italic;
  font-size: 26px;
  margin: 0;
  margin-right: 96px;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 70px 40px 100px;
}

.seccionInfo {
  display: flex;
  align-items: flex-start;
  gap: 64px;
}

.divInfoImg {
  flex: 0 0 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.divInfoImg img {
  width: 100%;
  height: auto;
  max-height: 540px;
  object-fit: contain;
  display: block;
}

.divInfoLibro {
  flex: 1;
  padding-top: 8px;
}

.tituloLibroInfo {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-weight: 600;
  font-size: 36px;
  margin: 0 0 28px;
  line-height: 1.3;
}

.fichaTecnica {
  border-top: 1px solid var(--linea);
  padding-top: 24px;
}

.filaFicha {
  display: flex;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--linea);
}

.filaFicha:last-child {
  border-bottom: none;
}

.etiquetaFicha {
  flex: 0 0 130px;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 12px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--acento);
  padding-top: 2px;
}

.valorFicha {
  flex: 1;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 16px;
  font-style: italic;
  color: var(--tinta);
  line-height: 1.5;
}

@media screen and (max-width: 768px) {
  header {
    padding: 22px 24px;
  }

  .tituloInfo {
    font-size: 19px;
    margin-right: 0;
  }

  main {
    padding: 48px 24px 70px;
  }

  .seccionInfo {
    flex-direction: column;
    align-items: center;
    gap: 36px;
  }

  .divInfoImg {
    flex: 0 0 auto;
    width: 100%;
    max-width: 280px;
  }

  .divInfoLibro {
    width: 100%;
    padding-top: 0;
  }

  .tituloLibroInfo {
    font-size: 27px;
    text-align: center;
  }
}