/*
 * ╔═══════════════════════════════════════════════════════════╗
 * ║  GALAPPXY — Layout System                                 ║
 * ║  App Shell · Sidebar · Topbar · Panels                    ║
 * ╚═══════════════════════════════════════════════════════════╝
 *
 * ESTRUCTURA:
 * ┌───┬──────────────────────────────────────────┬───┐
 * │ S │  Topbar                                   │ R │
 * │ I ├──────────────────────────────────────────┤ I │
 * │ D │                                           │ G │
 * │ E │  Content Area                             │ H │
 * │ B │                                           │ T │
 * │ A │                                           │   │
 * │ R │                                           │ P │
 * │   │                                           │ A │
 * └───┴──────────────────────────────────────────┴───┘
 */

/* ─── APP SHELL ──────────────────────────────────────────── */
.gx-app {
  display: grid;
  grid-template-columns: var(--gx-sidebar-width) 1fr;
  grid-template-rows: var(--gx-topbar-height) 1fr;
  grid-template-areas:
    "sidebar topbar"
    "sidebar content";
  min-height: 100vh;
  width: 100%;
}

/* Estado: child sidebar abierto */
.gx-app.gx-child-open {
  grid-template-columns: var(--gx-sidebar-width) var(--gx-childsidebar-width) 1fr;
  grid-template-areas:
    "sidebar childsidebar topbar"
    "sidebar childsidebar content";
}


/* ─── MAIN SIDEBAR (Izquierdo, íconos) ──────────────────── */
.gx-sidebar {
  grid-area: sidebar;
  background: var(--gx-sidebar-bg);
  width: var(--gx-sidebar-width);
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--gx-z-sidebar);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--gx-sp-3) 0;
  overflow-y: auto;
  overflow-x: hidden;
}

.gx-sidebar::-webkit-scrollbar { width: 0; }

/* Logo */
.gx-sidebar__logo {
  width: 44px;
  height: 44px;
  margin-bottom: var(--gx-sp-4);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gx-sidebar__logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: var(--gx-radius-md);
}

/* Nav items */
.gx-sidebar__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gx-sp-1);
  width: 100%;
  flex-grow: 1;
}

.gx-sidebar__item {
  width: 52px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--gx-sp-2) 0;
  border-radius: var(--gx-radius-md);
  color: var(--gx-sidebar-text);
  cursor: pointer;
  transition: all var(--gx-duration-base) var(--gx-ease-default);
  position: relative;
  text-decoration: none;
}

.gx-sidebar__item:hover {
  background: var(--gx-sidebar-bg-hover);
  color: var(--gx-sidebar-text-active);
}

.gx-sidebar__item.is-active {
  background: var(--gx-sidebar-bg-active);
  color: var(--gx-sidebar-text-active);
}

.gx-sidebar__item.is-active::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: var(--gx-sidebar-accent);
  border-radius: 0 var(--gx-radius-full) var(--gx-radius-full) 0;
}

.gx-sidebar__icon {
  font-size: 20px;
  line-height: 1;
  opacity: 0.75;
}

.gx-sidebar__item:hover .gx-sidebar__icon,
.gx-sidebar__item.is-active .gx-sidebar__icon {
  opacity: 1;
}

.gx-sidebar__label {
  font-size: 10px;
  font-weight: var(--gx-weight-medium);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 60px;
  opacity: 0.7;
}

.gx-sidebar__item:hover .gx-sidebar__label,
.gx-sidebar__item.is-active .gx-sidebar__label {
  opacity: 1;
}

/* Sidebar divider */
.gx-sidebar__divider {
  width: 32px;
  height: 1px;
  background: var(--gx-sidebar-divider);
  margin: var(--gx-sp-2) 0;
  flex-shrink: 0;
}

/* Sidebar footer section (bottom items) */
.gx-sidebar__footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gx-sp-1);
  padding-bottom: var(--gx-sp-2);
}


/* ─── CHILD SIDEBAR (Submenú expandible) ─────────────────── */
.gx-childsidebar {
  grid-area: childsidebar;
  background: var(--gx-childsidebar-bg);
  width: var(--gx-childsidebar-width);
  height: 100vh;
  position: fixed;
  top: 0;
  left: var(--gx-sidebar-width);
  z-index: calc(var(--gx-z-sidebar) - 1);
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform var(--gx-duration-medium) var(--gx-ease-default);
  overflow-y: auto;
}

.gx-childsidebar.is-open {
  transform: translateX(0);
}

.gx-childsidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--gx-sp-4) var(--gx-sp-4) var(--gx-sp-3);
  flex-shrink: 0;
}

.gx-childsidebar__title {
  font-size: var(--gx-text-md);
  font-weight: var(--gx-weight-semibold);
  color: var(--gx-sidebar-text-active);
}

.gx-childsidebar__close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gx-sidebar-text);
  background: none;
  border: none;
  border-radius: var(--gx-radius-sm);
  cursor: pointer;
  transition: all var(--gx-duration-fast) var(--gx-ease-default);
}

.gx-childsidebar__close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--gx-sidebar-text-active);
}

/* Child sidebar menu */
.gx-childsidebar__menu {
  padding: 0 var(--gx-sp-2);
  flex-grow: 1;
}

.gx-childsidebar__group {
  margin-bottom: var(--gx-sp-1);
}

.gx-childsidebar__group-title {
  display: flex;
  align-items: center;
  gap: var(--gx-sp-3);
  padding: var(--gx-sp-3) var(--gx-sp-3);
  color: var(--gx-childsidebar-text);
  border-radius: var(--gx-radius-md);
  cursor: pointer;
  transition: all var(--gx-duration-fast) var(--gx-ease-default);
  font-size: var(--gx-text-sm);
  font-weight: var(--gx-weight-medium);
}

.gx-childsidebar__group-title:hover {
  background: var(--gx-childsidebar-hover);
  color: var(--gx-sidebar-text-active);
}

.gx-childsidebar__group-title .gx-icon {
  font-size: 18px;
  opacity: 0.65;
  width: 20px;
  text-align: center;
}

.gx-childsidebar__subitems {
  padding-left: calc(var(--gx-sp-3) + 20px + var(--gx-sp-3));
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--gx-duration-medium) var(--gx-ease-default);
}

.gx-childsidebar__group.is-expanded .gx-childsidebar__subitems {
  max-height: 300px;
}

.gx-childsidebar__subitem {
  display: flex;
  align-items: center;
  gap: var(--gx-sp-2);
  padding: var(--gx-sp-2) var(--gx-sp-3);
  color: var(--gx-childsidebar-text);
  font-size: var(--gx-text-sm);
  border-radius: var(--gx-radius-sm);
  cursor: pointer;
  transition: all var(--gx-duration-fast) var(--gx-ease-default);
}

.gx-childsidebar__subitem:hover {
  background: var(--gx-childsidebar-hover);
  color: var(--gx-sidebar-text-active);
}

.gx-childsidebar__subitem.is-locked {
  opacity: 0.45;
  cursor: not-allowed;
}

.gx-childsidebar__subitem.is-locked .gx-icon-lock {
  font-size: 12px;
  margin-left: var(--gx-sp-2);
  color: var(--gx-warning);
}


/* ─── TOPBAR ─────────────────────────────────────────────── */
.gx-topbar {
  grid-area: topbar;
  background: var(--gx-topbar-bg);
  height: var(--gx-topbar-height);
  position: sticky;
  top: 0;
  z-index: var(--gx-z-sticky);
  display: flex;
  align-items: center;
  padding: 0 var(--gx-sp-4);
  border-bottom: 1px solid var(--gx-topbar-border);
  gap: var(--gx-sp-3);
}

/* Hamburger toggle para child sidebar */
.gx-topbar__toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gx-topbar-icon);
  border-radius: var(--gx-radius-md);
  cursor: pointer;
  transition: all var(--gx-duration-fast) var(--gx-ease-default);
  flex-shrink: 0;
}

.gx-topbar__toggle:hover {
  background: var(--gx-bg-surface-hover);
  color: var(--gx-topbar-icon-hover);
}

/* Logo mobile */
.gx-topbar__logo {
  display: none; /* Solo mobile */
  width: 32px;
  height: 32px;
}

.gx-topbar__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Search */
.gx-topbar__search {
  flex-grow: 1;
  max-width: 420px;
  position: relative;
}

.gx-topbar__search-input {
  width: 100%;
  height: var(--gx-input-height);
  padding: 0 var(--gx-sp-4) 0 var(--gx-sp-10);
  background: var(--gx-bg-surface-alt);
  border: 1px solid transparent;
  border-radius: var(--gx-radius-full);
  font-size: var(--gx-text-sm);
  color: var(--gx-text-primary);
  transition: all var(--gx-duration-base) var(--gx-ease-default);
  outline: none;
}

.gx-topbar__search-input::placeholder {
  color: var(--gx-text-muted);
}

.gx-topbar__search-input:focus {
  background: var(--gx-bg-surface);
  border-color: var(--gx-border-focus);
  box-shadow: 0 0 0 3px rgba(var(--gx-primary-rgb), 0.1);
}

.gx-topbar__search-icon {
  position: absolute;
  left: var(--gx-sp-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--gx-text-muted);
  font-size: 16px;
  pointer-events: none;
}

/* Right actions */
.gx-topbar__actions {
  display: flex;
  align-items: center;
  gap: var(--gx-sp-1);
  margin-left: auto;
}

.gx-topbar__action {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gx-topbar-icon);
  border-radius: var(--gx-radius-md);
  cursor: pointer;
  transition: all var(--gx-duration-fast) var(--gx-ease-default);
  position: relative;
  border: none;
  background: none;
}

.gx-topbar__action:hover {
  background: var(--gx-bg-surface-hover);
  color: var(--gx-topbar-icon-hover);
}

.gx-topbar__action .gx-icon {
  font-size: 20px;
}


/* ─── CONTENT AREA ───────────────────────────────────────── */
.gx-content {
  grid-area: content;
  padding: var(--gx-sp-6);
  overflow-y: auto;
  min-height: 0;
  max-width: 100%;
}

.gx-content__inner {
  max-width: var(--gx-content-max-width);
  margin: 0 auto;
}


/* ─── RIGHT PANEL SYSTEM ─────────────────────────────────── */

/* Trigger strip (botones pegados al borde derecho) */
.gx-right-trigger {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: var(--gx-z-panel);
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--gx-panel-trigger-bg);
  border-radius: var(--gx-radius-lg) 0 0 var(--gx-radius-lg);
  padding: var(--gx-sp-2) var(--gx-sp-1);
  box-shadow: var(--gx-shadow-lg);
}

.gx-right-trigger__btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gx-panel-trigger-icon);
  cursor: pointer;
  border-radius: var(--gx-radius-sm);
  transition: all var(--gx-duration-fast) var(--gx-ease-default);
  border: none;
  background: none;
}

.gx-right-trigger__btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.gx-right-trigger__btn .gx-icon {
  font-size: 18px;
}

/* Right panel (quickview) */
.gx-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--gx-right-panel-width);
  height: 100vh;
  background: var(--gx-panel-bg);
  z-index: var(--gx-z-panel);
  box-shadow: var(--gx-shadow-float);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--gx-duration-medium) var(--gx-ease-default);
}

.gx-panel.is-open {
  transform: translateX(0);
}

.gx-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--gx-sp-4) var(--gx-sp-4);
  background: var(--gx-panel-header-bg);
  color: var(--gx-panel-header-text);
  flex-shrink: 0;
}

.gx-panel__title {
  display: flex;
  align-items: center;
  gap: var(--gx-sp-2);
  font-size: var(--gx-text-md);
  font-weight: var(--gx-weight-semibold);
}

.gx-panel__title .gx-icon {
  font-size: 18px;
  opacity: 0.85;
}

.gx-panel__subtitle {
  font-size: var(--gx-text-xs);
  opacity: 0.65;
  margin-top: 2px;
}

.gx-panel__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--gx-radius-sm);
  transition: background var(--gx-duration-fast) var(--gx-ease-default);
  border: none;
  background: none;
  color: inherit;
}

.gx-panel__close:hover {
  background: rgba(255, 255, 255, 0.15);
}

.gx-panel__body {
  flex-grow: 1;
  overflow-y: auto;
  padding: var(--gx-sp-4);
}

.gx-panel__footer {
  padding: var(--gx-sp-3) var(--gx-sp-4);
  border-top: 1px solid var(--gx-border-color);
  flex-shrink: 0;
}

/* Panel overlay backdrop */
.gx-panel-backdrop {
  position: fixed;
  inset: 0;
  background: var(--gx-bg-overlay);
  z-index: calc(var(--gx-z-panel) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--gx-duration-medium) var(--gx-ease-default);
}

.gx-panel-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}


/* ─── PAGE LOADER ────────────────────────────────────────── */
.gx-pageloader {
  position: fixed;
  inset: 0;
  z-index: var(--gx-z-loader);
  background: var(--gx-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--gx-duration-slow) var(--gx-ease-out),
              visibility 0s var(--gx-duration-slow);
}

.gx-pageloader.is-hidden {
  opacity: 0;
  visibility: hidden;
}


/* ─── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .gx-app {
    grid-template-columns: 1fr;
    grid-template-areas:
      "topbar"
      "content";
  }

  .gx-app.gx-child-open {
    grid-template-columns: 1fr;
    grid-template-areas:
      "topbar"
      "content";
  }

  .gx-sidebar {
    transform: translateX(-100%);
    transition: transform var(--gx-duration-medium) var(--gx-ease-default);
  }

  .gx-sidebar.is-mobile-open {
    transform: translateX(0);
  }

  .gx-childsidebar {
    left: 0;
    width: 100%;
    max-width: 300px;
  }

  .gx-topbar__logo { display: flex; }
  .gx-topbar__search { max-width: none; }

  .gx-content {
    padding: var(--gx-sp-4);
  }

  .gx-panel {
    width: 100%;
    max-width: 360px;
  }

  .gx-right-trigger {
    display: none;
  }
}

@media (max-width: 480px) {
  .gx-content { padding: var(--gx-sp-3); }
  .gx-panel { max-width: 100%; }
}