/* encabezado y navegación */
.encabezado-principal {
  background-color: var(--color-encabezado);
  padding: 12px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-borde);
  box-shadow: 0 8px 24px rgba(23, 36, 43, 0.05);
  backdrop-filter: blur(18px);
  transition: background-color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.encabezado-principal nav {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
  }

/* Contenedor del logo */
.logo-marca {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: bold;
  color: var(--color-acento);
  font-size: 1.2rem;
}

/* Enlaces del centro */
.encabezado-principal nav ul {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
}

.encabezado-principal nav ul li a {
  display: block;
  padding: 9px 13px;
  border-radius: var(--radio-pildora);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--color-texto-secundario);
  transition:
    color 0.2s ease,
    background-color 0.2s ease,
    transform 0.2s ease;
}

.encabezado-principal nav ul li a:hover {
  color: var(--color-acento);
  background-color: rgba(194, 98, 66, 0.1);
  transform: translateY(-1px);
}

.boton-menu {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-borde);
  border-radius: 12px;
  background-color: var(--color-blanco);
  color: var(--color-primario);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(23, 36, 43, 0.08);
  transition:
    color 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease;
}

.boton-menu:hover {
  color: var(--color-acento);
  border-color: rgba(194, 98, 66, 0.35);
  transform: translateY(-1px);
}
.logo-navegacion {
  display: block;
  width: 142px;
  height: 48px;
  object-fit: contain;
  flex: 0 0 auto;
  filter: drop-shadow(0.5px 2px 2px rgba(23, 36, 43, 0.32));
}

.encabezado-desplazado {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}