/* ==========================================================================
   Sección: Header Sticky Styles (Piscinas Fiji)
   ========================================================================== */

:root {
  --header-height: 70px;
}

@media (min-width: 768px) {
  :root {
    --header-height: 90px;
  }
}

@media (min-width: 1024px) {
  :root {
    --header-height: 100px;
  }
}

.header-principal {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  max-width: 100%;
  height: var(--header-height, 70px);
  background-color: rgba(234, 245, 255, 0.94); /* Espuma #EAF5FF translúcido */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-borde);
  z-index: 900;
  display: flex;
  align-items: center;
  transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
  box-sizing: border-box;
}

.header-principal.scrolled {
  box-shadow: 0 4px 20px rgba(6, 33, 58, 0.08);
  background-color: rgba(255, 255, 255, 0.98);
}

.header-contenedor {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  max-width: 1200px;
  box-sizing: border-box;
}

.header-logo-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.logo-desktop {
  display: none;
}

.logo-mobile {
  display: block;
  width: 40px;
  height: 40px;
}

/* Navegación Desktop */
.header-nav-desktop {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

.header-nav-link {
  font-family: var(--font-etiquetas);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-azul-noche);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.header-nav-link:hover {
  color: var(--color-azul-fiji);
  background-color: rgba(6, 147, 255, 0.08);
}

.header-nav-link:focus-visible {
  outline: 2px solid var(--color-azul-fiji);
  outline-offset: 2px;
}

/* Acciones en Header */
.header-acciones {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* Botón Hamburguesa */
.header-hamburguesa {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  background-color: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--color-borde);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  gap: 5px;
  transition: all var(--transition-fast);
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

.header-hamburguesa:hover {
  background-color: rgba(6, 147, 255, 0.08);
  border-color: var(--color-azul-fiji);
}

.header-hamburguesa:focus-visible {
  outline: 2px solid var(--color-azul-fiji);
  outline-offset: 2px;
}

.linea-hamburguesa {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-azul-noche);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease, background-color 0.25s ease;
  transform-origin: center;
}

/* Animación del botón hamburguesa activo (X) */
.header-principal.menu-activo .linea-1 {
  transform: translateY(7px) rotate(45deg);
}

.header-principal.menu-activo .linea-2 {
  opacity: 0;
  transform: scaleX(0);
}

.header-principal.menu-activo .linea-3 {
  transform: translateY(-7px) rotate(-45deg);
}

.header-principal.menu-activo .header-hamburguesa {
  background-color: rgba(6, 147, 255, 0.12);
  border-color: var(--color-azul-fiji);
}

/* Menú Mobile Desplegable */
.header-menu-mobile {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--color-borde);
  box-shadow: 0 16px 36px rgba(6, 33, 58, 0.15);
  max-height: 0;
  opacity: 0;
  visibility: hidden;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease, visibility 0.25s ease;
  z-index: 950;
  box-sizing: border-box;
}

.header-principal.menu-activo .header-menu-mobile {
  max-height: 85vh;
  opacity: 1;
  visibility: visible;
  overflow-y: auto;
}

.menu-mobile-contenedor {
  padding-top: 1rem;
  padding-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.menu-mobile-nav {
  display: flex;
  flex-direction: column;
}

.menu-mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem 0.5rem;
  font-family: var(--font-etiquetas);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-azul-noche);
  text-decoration: none;
  border-bottom: 1px solid rgba(6, 33, 58, 0.06);
  transition: all var(--transition-fast);
}

.menu-mobile-link:hover,
.menu-mobile-link:active {
  color: var(--color-azul-fiji);
  padding-left: 0.85rem;
  background-color: rgba(6, 147, 255, 0.04);
}

.menu-link-flecha {
  color: var(--color-texto-secundario);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.menu-mobile-link:hover .menu-link-flecha {
  color: var(--color-azul-fiji);
  transform: translateX(4px);
}

.menu-mobile-cta {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding-top: 0.25rem;
}

.boton-menu-mobile-wa {
  width: 100%;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  border-radius: 8px;
}

.menu-mobile-microcopy {
  font-size: 0.8rem;
  text-align: center;
  color: var(--color-texto-secundario);
  margin: 0;
  font-weight: 500;
}

/* Backdrop Overlay */
.header-backdrop {
  position: fixed;
  top: var(--header-height, 70px);
  left: 0;
  width: 100vw;
  height: calc(100vh - var(--header-height, 70px));
  background-color: rgba(6, 33, 58, 0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 850;
}

.header-principal.menu-activo .header-backdrop {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Evitar scroll del fondo cuando el menú está abierto */
body.menu-abierto {
  overflow: hidden;
}

/* ==========================================================================
   Media Queries (Responsive)
   ========================================================================== */

@media (min-width: 768px) {
  .logo-desktop {
    display: block;
    height: 60px;
    width: auto;
  }

  .logo-mobile {
    display: none;
  }

  .header-nav-desktop {
    display: flex;
  }

  .header-hamburguesa {
    display: none;
  }

  .header-menu-mobile,
  .header-backdrop {
    display: none !important;
  }
}

@media (min-width: 1024px) {
  .logo-desktop {
    height: 70px;
  }

  .header-nav-desktop {
    gap: 0.75rem;
  }

  .header-nav-link {
    font-size: 1rem;
    padding: 0.6rem 1.15rem;
  }
}