/**
 * SAM-17: Estilos de navegacion principal
 * Scope: front-end
 * Incluir en style.css del tema o cargar via wp_enqueue_style
 */

/* ===== Variables de navegacion ===== */
:root {
  --nav-bg: #ffffff;
  --nav-text: #1a1a1a;
  --nav-text-hover: #0066cc;
  --nav-dropdown-bg: #ffffff;
  --nav-dropdown-shadow: 0 4px 12px rgba(0,0,0,0.15);
  --nav-border: #e0e0e0;
  --nav-mobile-bg: #f8f9fa;
  --nav-hamburger-color: #1a1a1a;
  --nav-z-index: 1000;
  --nav-transition: all 0.25s ease;
}

/* ===== Contenedor principal ===== */
.main-navigation {
  position: relative;
  background: var(--nav-bg);
  z-index: var(--nav-z-index);
}

/* ===== Menu toggle (hamburguesa mobile) ===== */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: transparent;
  border: 2px solid var(--nav-border);
  border-radius: 6px;
  cursor: pointer;
  transition: var(--nav-transition);
}

.menu-toggle:hover,
.menu-toggle:focus {
  border-color: var(--nav-text-hover);
  outline: none;
}

.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  margin: 3px 0;
  background: var(--nav-hamburger-color);
  border-radius: 1px;
  transition: var(--nav-transition);
}

/* ===== Menu desktop ===== */
.menu-primary-container {
  display: flex;
  justify-content: center;
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0;
}

.nav-menu > li {
  position: relative;
}

.nav-menu > li > a {
  display: block;
  padding: 16px 20px;
  color: var(--nav-text);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: var(--nav-transition);
  white-space: nowrap;
}

.nav-menu > li > a:hover,
.nav-menu > li > a:focus,
.nav-menu > li.current-menu-item > a,
.nav-menu > li.current-menu-parent > a {
  color: var(--nav-text-hover);
}

.nav-menu > li > a:focus {
  outline: 2px solid var(--nav-text-hover);
  outline-offset: -2px;
}

/* ===== Dropdown ===== */
.sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--nav-dropdown-bg);
  box-shadow: var(--nav-dropdown-shadow);
  border-radius: 0 0 8px 8px;
  list-style: none;
  margin: 0;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--nav-transition);
  z-index: calc(var(--nav-z-index) + 1);
}

.nav-menu > li:hover > .sub-menu,
.nav-menu > li:focus-within > .sub-menu,
.nav-menu > li.has-dropdown > a[aria-expanded="true"] + .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sub-menu li {
  display: block;
}

.sub-menu li a {
  display: block;
  padding: 10px 20px;
  color: var(--nav-text);
  text-decoration: none;
  font-size: 14px;
  transition: var(--nav-transition);
}

.sub-menu li a:hover,
.sub-menu li a:focus {
  background: #f0f4f8;
  color: var(--nav-text-hover);
}

/* ===== Responsive: Mobile <= 1024px ===== */
@media (max-width: 1024px) {
  .menu-toggle {
    display: flex;
  }

  .menu-primary-container {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    background: var(--nav-mobile-bg);
    box-shadow: -4px 0 20px rgba(0,0,0,0.2);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    padding-top: 60px;
    z-index: calc(var(--nav-z-index) + 2);
    justify-content: flex-start;
  }

  .menu-primary-container.is-open {
    transform: translateX(0);
  }

  .nav-menu {
    flex-direction: column;
    width: 100%;
  }

  .nav-menu > li > a {
    padding: 14px 24px;
    border-bottom: 1px solid var(--nav-border);
  }

  .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-radius: 0;
    display: none;
    padding: 0;
    background: transparent;
    border-left: 3px solid var(--nav-text-hover);
    margin-left: 16px;
  }

  .sub-menu.is-visible {
    display: block;
  }

  .sub-menu li a {
    padding: 12px 24px;
    border-bottom: 1px solid var(--nav-border);
  }

  /* Overlay cuando menu mobile abierto */
  .main-navigation::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    opacity: 0;
    visibility: hidden;
    transition: var(--nav-transition);
    z-index: calc(var(--nav-z-index) - 1);
  }

  .main-navigation:has(.menu-primary-container.is-open)::before {
    opacity: 1;
    visibility: visible;
  }
}

/* ===== Reduce motion ===== */
@media (prefers-reduced-motion: reduce) {
  .menu-toggle,
  .hamburger-bar,
  .menu-primary-container,
  .sub-menu,
  .nav-menu > li > a,
  .sub-menu li a {
    transition: none;
  }
}

/* ===== Focus visible para accesibilidad ===== */
.nav-menu a:focus-visible {
  outline: 2px solid var(--nav-text-hover);
  outline-offset: 2px;
}