/* ========== q_nav.css (v3.1) ========== */
/* Componente de navegación responsive (por viewport y por contenedor) */
/* - Mantiene compatibilidad con v2.x
   - Añade colapso por ANCHO DEL NAV (ResizeObserver vía q_nav.js)
   - Arregla split/center-split en móvil (evita superposición)
   - Incluye fallbacks si no existe _globales.css */

/* -------- Variables / fallbacks -------- */
:root{
  /* Medidas */
  --nav-height: 3rem;
  --nav-gap: var(--global-gap-sm, .5rem);
  --nav-padding-x: var(--global-padding-md, 1rem);
  --nav-padding-y: var(--global-padding-sm, .5rem);
  --nav-radius: var(--global-border-radius-lg, .75rem);
  --nav-item-pad-x: .85rem;
  --nav-item-pad-y: .50rem;
  --nav-underline: 2px;
  --nav-breakpoint: 992px; /* usado por @media; JS puede forzar colapso con .is-collapsed */

  /* Fallbacks de color/tokens (si no usas _globales.css) */
  --qnav-color-text: var(--color-text, #111827);
  --qnav-color-bg: var(--color-bg, #ffffff);
  --qnav-color-border: var(--color-border, rgba(17,24,39,.12));
  --qnav-color-primary: var(--color-primary, #2563eb);
  --qnav-color-accent: var(--color-accent, #f59e0b);

  --qnav-hover-neutral: var(--global-hover-neutral, rgba(17,24,39,.06));
  --qnav-shadow-sm: var(--shadow-sm, 0 2px 10px rgba(0,0,0,.06));
  --qnav-shadow-md: var(--shadow-md, 0 8px 24px rgba(0,0,0,.12));
  --qnav-shadow-lg: var(--shadow-lg, 0 16px 40px rgba(0,0,0,.18));
}

/* -------- Base -------- */
.q_nav{
  color: var(--qnav-color-text);
  background: var(--qnav-color-bg);
  border: 1px solid var(--qnav-color-border);
  box-shadow: var(--qnav-shadow-sm);

  min-height: var(--nav-height);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto; /* minmax(0,1fr) evita overflow en grid */
  align-items: center;
  gap: var(--nav-gap);

  padding:
    calc(var(--nav-padding-y) + env(safe-area-inset-top, 0px))
    calc(var(--nav-padding-x) + env(safe-area-inset-right, 0px));
  padding-left: calc(var(--nav-padding-x) + env(safe-area-inset-left, 0px));

  border-radius: var(--nav-radius);
  position: relative;
  overflow: visible;
}

.q_nav.header{ width: 100%; border-radius: 0; border-left: 0; border-right: 0; }
.q_nav.sticky{ position: sticky; top: 0; z-index: 100; }
.q_nav.internal{ box-shadow: none; }

/* -------- Elementos -------- */
.q_nav .brand{
  display: inline-flex;
  align-items: center;
  gap: var(--global-gap-xs, .25rem);
  text-decoration: none;
  color: inherit;
  font-weight: var(--global-font-weight-semibold, 600);
  white-space: nowrap;
  min-width: 0;
}
.q_nav .brand img{
  display: block;
  max-height: calc(var(--nav-height) - var(--nav-padding-y)*2);
  width: auto;
}

.q_nav .list{
  display: flex;
  align-items: center;
  gap: var(--nav-gap);
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.q_nav .item{ display: block; }

.q_nav .link{
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: var(--nav-item-pad-y) var(--nav-item-pad-x);
  border-radius: var(--global-border-radius-md, .5rem);
  text-decoration: none;
  color: currentColor;
  line-height: 1;
  transition: background .18s, color .18s, transform .18s;
  white-space: nowrap;
  min-width: 0;
}
.q_nav .link:hover{ background: var(--qnav-hover-neutral); }
.q_nav .link:active{ transform: translateY(1px); }

.q_nav .link.active,
.q_nav .link[aria-current="page"],
.q_nav .link[aria-selected="true"]{
  color: var(--qnav-color-primary);
}

/* Acciones */
.q_nav .actions{
  display: inline-flex;
  gap: var(--nav-gap);
  align-items: center;
  justify-self: end;
  min-width: 0;
}

/* -------- Posicionamiento del brand -------- */
.q_nav.center-brand{ grid-template-columns: 1fr auto 1fr; }
.q_nav.center-brand .brand{ grid-column: 2; justify-self: center; }

.q_nav.brand-left .brand{ grid-column: 1; justify-self: start; }
.q_nav.brand-right{ grid-template-columns: 1fr minmax(0,1fr) auto; }
.q_nav.brand-right .brand{ grid-column: 3; justify-self: end; }

.q_nav.brand-left-row{ grid-template-columns: auto minmax(0,1fr); }
.q_nav.brand-left-row .brand{ grid-column: 1; }
.q_nav.brand-left-row .list{ grid-column: 2; justify-self: end; }

.q_nav.brand-right-row{ grid-template-columns: minmax(0,1fr) auto; }
.q_nav.brand-right-row .list{ grid-column: 1; justify-self: end; }
.q_nav.brand-right-row .brand{ grid-column: 2; justify-self: end; }

/* Split */
.q_nav.split{ grid-template-columns: auto minmax(0,1fr) auto; }
.q_nav.split .list.left{ grid-column: 1; justify-self: start; }
.q_nav.split .list.right{ grid-column: 3; justify-self: end; }
.q_nav.split .brand{ grid-column: 2; justify-self: center; }

/* Center split */
.q_nav.center-split{ grid-template-columns: minmax(0,1fr) auto minmax(0,1fr); }
.q_nav.center-split .brand{ grid-column: 2; justify-self: center; }
.q_nav.center-split .list.left{ grid-column: 1; justify-self: start; }
.q_nav.center-split .list.right{ grid-column: 3; justify-self: end; }

/* -------- Variantes -------- */
.q_nav.underline .link{ border-radius: 0; border-bottom: var(--nav-underline) solid transparent; }
.q_nav.underline .link.active,
.q_nav.underline .link[aria-current="page"],
.q_nav.underline .link[aria-selected="true"]{
  border-color: var(--qnav-color-primary);
  color: var(--qnav-color-primary);
}

.q_nav.pill .link{ background: transparent; }
.q_nav.pill .link:hover{ background: var(--qnav-hover-neutral); }
.q_nav.pill .link.active{
  background: color-mix(in srgb, var(--qnav-color-primary) 10%, transparent);
  border: 1px solid var(--qnav-color-border);
}

.q_nav.tabs{
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  border: 0;
  border-bottom: 1px solid var(--qnav-color-border);
}
.q_nav.tabs .list{ gap: 0; }
.q_nav.tabs .link{ border-radius: 0; border-bottom: 2px solid transparent; }
.q_nav.tabs .link.active{
  border-bottom-color: var(--qnav-color-primary);
  color: var(--qnav-color-primary);
}

/* Tamaños */
.q_nav.sm .link{ font-size: var(--global-font-size-sm, .875rem); }
.q_nav.md .link{ font-size: var(--global-font-size-md, 1rem); }
.q_nav.lg .link{ font-size: var(--global-font-size-lg, 1.125rem); }

/* Utilidades */
.q_nav.gap-0{ --nav-gap: 0; }
.q_nav.gap-sm{ --nav-gap: var(--global-gap-sm, .5rem); }
.q_nav.gap-md{ --nav-gap: var(--global-gap-md, .75rem); }
.q_nav.gap-lg{ --nav-gap: var(--global-gap-lg, 1rem); }

.q_nav.wrap .list{ flex-wrap: wrap; }
.q_nav.nowrap .list{ flex-wrap: nowrap; }
.q_nav.items-center .list{ justify-content: center; }
.q_nav.items-end .list{ justify-content: flex-end; }
.q_nav.items-start .list{ justify-content: flex-start; }

/* Scroll horizontal opcional */
.q_nav.scroll .list{
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.q_nav.scroll .list::-webkit-scrollbar{ height: 8px; }

/* -------- Burger + toggle -------- */
.q_nav .toggle{ display: none; }
.q_nav .burger{
  --size: 1.25rem;
  display: none;
  width: var(--size);
  height: var(--size);
  border-radius: var(--global-border-radius-sm, .375rem);
  border: 1px solid var(--qnav-color-border);
  background:
    linear-gradient(currentColor, currentColor) center 35%/70% 2px no-repeat,
    linear-gradient(currentColor, currentColor) center/70% 2px no-repeat,
    linear-gradient(currentColor, currentColor) center 65%/70% 2px no-repeat;
  cursor: pointer;
  color: currentColor;
  flex-shrink: 0;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* Trigger responsive: 
   - .responsive (explícito)
   - .header (por defecto en headers)
   - [data-responsive] (explícito)
   - NO si lleva .no-responsive */
.q_nav:is(.responsive, .header, [data-responsive]):not(.no-responsive) .burger{ display: none; }

/* -------- Colapso (por viewport) -------- */
@media (max-width: var(--nav-breakpoint)){
  .q_nav:is(.responsive, .header, [data-responsive]):not(.no-responsive){
    grid-template-columns: auto minmax(0,1fr) auto;
  }
  .q_nav:is(.responsive, .header, [data-responsive]):not(.no-responsive) .burger{
    display: inline-flex;
    grid-column: 3;
    justify-self: end;
  }
  .q_nav:is(.responsive, .header, [data-responsive]):not(.no-responsive) .brand{
    grid-column: 1;
    justify-self: start;
  }
  .q_nav:is(.responsive, .header, [data-responsive]):not(.no-responsive) .list{
    display: none;
    grid-column: 1 / -1;
    grid-row: 2;
    margin-top: .5rem;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .q_nav:is(.responsive, .header, [data-responsive]):not(.no-responsive) .toggle:checked ~ .list{
    display: flex;
  }

  /* Split / center-split: apilar left y right (evita superposición) */
  .q_nav:is(.responsive, .header, [data-responsive]).split:not(.no-responsive) .list.left{ grid-row: 2; }
  .q_nav:is(.responsive, .header, [data-responsive]).split:not(.no-responsive) .list.right{ grid-row: 3; margin-top: .25rem; }
  .q_nav:is(.responsive, .header, [data-responsive]).center-split:not(.no-responsive) .list.left{ grid-row: 2; }
  .q_nav:is(.responsive, .header, [data-responsive]).center-split:not(.no-responsive) .list.right{ grid-row: 3; margin-top: .25rem; }

  /* Acciones: visibles solo si data-collapse y el menú está abierto */
  .q_nav:is(.responsive, .header, [data-responsive]):not(.no-responsive) .actions[data-collapse]{
    display: none;
    grid-column: 1 / -1;
    grid-row: 4;
    margin-top: .5rem;
    justify-content: center;
    width: 100%;
  }
  .q_nav:is(.responsive, .header, [data-responsive]):not(.no-responsive) .toggle:checked ~ .actions[data-collapse]{
    display: inline-flex;
  }
  .q_nav:is(.responsive, .header, [data-responsive]):not(.no-responsive) .actions:not([data-collapse]){
    display: none;
  }

  /* center-brand en móvil mantiene brand centrado */
  .q_nav:is(.responsive, .header, [data-responsive]).center-brand:not(.no-responsive){
    grid-template-columns: 1fr auto 1fr;
  }
  .q_nav:is(.responsive, .header, [data-responsive]).center-brand:not(.no-responsive) .brand{
    grid-column: 2;
    justify-self: center;
  }
}

/* -------- Colapso (por contenedor / JS) -------- */
/* q_nav.js añade .is-collapsed cuando el ancho del nav <= breakpoint, incluso si el viewport es grande */
.q_nav.is-collapsed:not(.no-responsive){
  grid-template-columns: auto minmax(0,1fr) auto;
}
.q_nav.is-collapsed:not(.no-responsive) .burger{
  display: inline-flex;
  grid-column: 3;
  justify-self: end;
}
.q_nav.is-collapsed:not(.no-responsive) .brand{
  grid-column: 1;
  justify-self: start;
}
.q_nav.is-collapsed:not(.no-responsive) .list{
  display: none;
  grid-column: 1 / -1;
  grid-row: 2;
  margin-top: .5rem;
  flex-direction: column;
  align-items: stretch;
  width: 100%;
}
.q_nav.is-collapsed:not(.no-responsive) .toggle:checked ~ .list{ display: flex; }

/* Split apilado */
.q_nav.is-collapsed.split:not(.no-responsive) .list.left{ grid-row: 2; }
.q_nav.is-collapsed.split:not(.no-responsive) .list.right{ grid-row: 3; margin-top: .25rem; }
.q_nav.is-collapsed.center-split:not(.no-responsive) .list.left{ grid-row: 2; }
.q_nav.is-collapsed.center-split:not(.no-responsive) .list.right{ grid-row: 3; margin-top: .25rem; }

/* Acciones colapsables */
.q_nav.is-collapsed:not(.no-responsive) .actions[data-collapse]{
  display: none;
  grid-column: 1 / -1;
  grid-row: 4;
  margin-top: .5rem;
  justify-content: center;
  width: 100%;
}
.q_nav.is-collapsed:not(.no-responsive) .toggle:checked ~ .actions[data-collapse]{ display: inline-flex; }
.q_nav.is-collapsed:not(.no-responsive) .actions:not([data-collapse]){ display: none; }

/* center-brand en colapso mantiene brand centrado */
.q_nav.is-collapsed.center-brand:not(.no-responsive){
  grid-template-columns: 1fr auto 1fr;
}
.q_nav.is-collapsed.center-brand:not(.no-responsive) .brand{
  grid-column: 2;
  justify-self: center;
}

/* -------- Accesibilidad -------- */
.q_nav .link:focus-visible{
  outline: 2px solid var(--qnav-color-accent);
  outline-offset: 2px;
}
.q_nav .link.disabled{
  opacity: .5;
  pointer-events: none;
  cursor: not-allowed;
}

/* Separación */
.q_nav + .q_nav{ margin-top: .5rem; }

/* Paletas (si existen tokens globales, se verán mejor) */
.q_nav.primary{ background: var(--color-bg-primary, #1d4ed8); color: var(--color-bg-primary-text, #fff); }
.q_nav.secondary{ background: var(--color-bg-secondary, #6d28d9); color: var(--color-bg-secondary-text, #fff); }
.q_nav.success{ background: var(--color-bg-success, #16a34a); color: var(--color-bg-success-text, #fff); }
.q_nav.warning{ background: var(--color-bg-warning, #f59e0b); color: var(--color-bg-warning-text, #111827); }
.q_nav.danger{ background: var(--color-bg-danger, #dc2626); color: var(--color-bg-danger-text, #fff); }
.q_nav.neutral{ background: var(--color-bg-neutral, #111827); color: var(--color-bg-neutral-text, #fff); }

.q_nav.elevated{ box-shadow: var(--qnav-shadow-md); }
.q_nav.glass{
  background: color-mix(in srgb, var(--qnav-color-bg) 75%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
}

/* Dropdown opcional */
.q_nav .dropdown{ position: relative; }
.q_nav .dropdown-content{
  position: absolute;
  top: calc(100% + .25rem);
  left: 0;
  min-width: 200px;
  background: var(--qnav-color-bg);
  color: var(--qnav-color-text);
  border: 1px solid var(--qnav-color-border);
  border-radius: var(--global-border-radius-md, .5rem);
  box-shadow: var(--qnav-shadow-md);
  padding: .5rem;
  display: none;
  z-index: 1000;
}
.q_nav .dropdown:hover .dropdown-content{ display: block; }
.q_nav .dropdown-content .link{
  display: block;
  width: 100%;
  border-radius: var(--global-border-radius-sm, .375rem);
}

/* Micro-ajustes */
@media (max-width: 480px){
  .q_nav{
    --nav-padding-x: .75rem;
    --nav-item-pad-x: .75rem;
  }
}

/* ========== INTEGRACIÓN Q_DROPDOWN ========== */

/* Dropdowns dentro del nav */
.q_nav .q_dropdown_container {
  position: relative;
  display: inline-block;
}

/* Toggle de dropdown en nav */
.q_nav .link.q_dropdown_toggle {
  cursor: pointer;
  position: relative;
  padding-right: 1.75rem !important;
  user-select: none;
}

.q_nav .link.q_dropdown_toggle::after {
  content: '';
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  width: 6px;
  height: 6px;
  transform: translateY(-30%) rotate(45deg);
  transition: transform 0.2s ease;
  pointer-events: none;
}

.q_nav .q_dropdown_container:hover .link.q_dropdown_toggle::after,
.q_nav .q_dropdown.open ~ .link.q_dropdown_toggle::after {
  transform: translateY(30%) rotate(-135deg);
}

/* Ajustes para modo colapsado (móvil) */
.q_nav.is-collapsed .q_dropdown_container {
  width: 100%;
}

.q_nav.is-collapsed .link.q_dropdown_toggle {
  width: 100%;
  text-align: left;
  padding-right: 2.5rem !important;
}

.q_nav.is-collapsed .link.q_dropdown_toggle::after {
  right: 1rem;
  transform: translateY(-50%) rotate(45deg);
  transition: transform 0.3s ease;
}

.q_nav.is-collapsed .q_dropdown.open ~ .link.q_dropdown_toggle::after {
  transform: translateY(0%) rotate(-135deg);
}

/* Dropdown en modo colapsado (accordion) */
.q_nav.is-collapsed .q_dropdown {
  position: static !important;
  display: none;
  width: 100% !important;
  max-width: 100% !important;
  box-shadow: none !important;
  border: none !important;
  background: transparent !important;
  margin: 0 !important;
  padding-left: 1rem !important;
  animation: none !important;
  opacity: 1 !important;
  transform: none !important;
  overflow: visible !important;
}

.q_nav.is-collapsed .q_dropdown.open {
  display: block !important;
}

.q_nav.is-collapsed .q_dropdown .item {
  display: block;
  width: 100%;
  padding: 0.625rem 1rem !important;
  border-radius: 0.375rem;
  margin-bottom: 0.125rem;
}

.q_nav.is-collapsed .q_dropdown .item:hover {
  background: var(--qnav-hover-neutral) !important;
}

.q_nav.is-collapsed .q_dropdown .separator {
  margin: 0.5rem 0;
  background: var(--qnav-color-border);
}

/* Submenús en modo colapsado */
.q_nav.is-collapsed .q_dropdown .submenu {
  position: static !important;
  display: none;
  width: 100% !important;
  box-shadow: none !important;
  border: none !important;
  margin-left: 1rem !important;
  margin-top: 0.25rem;
  animation: none !important;
  opacity: 1 !important;
}

.q_nav.is-collapsed .q_dropdown .submenu.open {
  display: block !important;
}

.q_nav.is-collapsed .q_dropdown .has-submenu.open .submenu {
  display: block !important;
}

/* Ajustes para items con submenús en móvil */
.q_nav.is-collapsed .q_dropdown .has-submenu {
  position: relative;
}

.q_nav.is-collapsed .q_dropdown .has-submenu::after {
  content: '';
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  width: 6px;
  height: 6px;
  transition: transform 0.3s ease;
}

.q_nav.is-collapsed .q_dropdown .has-submenu.open::after {
  transform: translateY(0%) rotate(-135deg);
}

/* Accesibilidad */
.q_nav .link.q_dropdown_toggle:focus-visible {
  outline: 2px solid var(--qnav-color-accent);
  outline-offset: 2px;
}

.q_nav.is-collapsed .link.q_dropdown_toggle[aria-expanded="true"] {
  background: var(--qnav-hover-neutral);
}

/* Transiciones suaves */
.q_nav.is-collapsed .q_dropdown,
.q_nav.is-collapsed .submenu {
  transition: max-height 0.3s ease, opacity 0.3s ease;
  max-height: 0;
  overflow: hidden;
}

.q_nav.is-collapsed .q_dropdown.open,
.q_nav.is-collapsed .submenu.open {
  max-height: 500px;
}

/* Ajustes para diferentes variantes del nav */
.q_nav.underline .link.q_dropdown_toggle::after {
  border-color: currentColor;
}

.q_nav.pill .link.q_dropdown_toggle.active {
  background: color-mix(in srgb, var(--qnav-color-primary) 10%, transparent);
}

/* Media query para pantallas muy pequeñas */
@media (max-width: 480px) {
  .q_nav.is-collapsed .q_dropdown {
    padding-left: 0.75rem !important;
  }
  
  .q_nav.is-collapsed .q_dropdown .item {
    padding: 0.5rem 0.75rem !important;
  }
}