/* ================================================================
   ORBIT HUB ARCHITECTURE (SIDEBAR RETRÁTIL & TOPBAR CONTEXTUAL)
   High-performance workspace layout with collapsible left navigation
   ================================================================ */

/* Master Layout Container */
.app-layout {
  display: flex;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--color-bg);
}

/* ================================================================
   1. APP SIDEBAR (HUB NAVIGATION)
   ================================================================ */
.app-sidebar {
  width: var(--sidebar-width-expanded);
  height: 100%;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-shrink: 0;
  transition: width var(--transition);
  z-index: 100;
  user-select: none;
  overflow: hidden;
}

.app-sidebar.collapsed {
  width: var(--sidebar-width-collapsed);
}

/* Sidebar Top Brand Header */
.sidebar-brand-header {
  height: var(--topbar-height);
  padding: 0 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  overflow: hidden;
  white-space: nowrap;
}

.brand-logo-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
  position: relative;
  box-shadow: 0 0 10px var(--color-primary-glow);
}

.brand-title {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--color-text-primary);
  font-family: var(--font-display);
  transition: opacity var(--transition-fast);
}

.app-sidebar.collapsed .brand-title {
  opacity: 0;
  pointer-events: none;
}

/* Sidebar Navigation Items */
.sidebar-nav-container {
  flex: 1;
  padding: 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-section {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-section-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--color-text-placeholder);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0 10px 4px;
  white-space: nowrap;
  transition: opacity var(--transition-fast);
}

.app-sidebar.collapsed .sidebar-section-title {
  opacity: 0;
  height: 0;
  padding: 0;
  margin: 0;
  overflow: hidden;
}

.sidebar-nav-item {
  width: 100%;
  height: 38px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.sidebar-nav-item i,
.sidebar-nav-item svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
}

.sidebar-nav-item:hover {
  color: var(--color-text-primary);
  background: var(--color-surface-subtle);
}

.sidebar-nav-item.active {
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  border-color: rgba(43, 89, 222, 0.15);
}

.sidebar-nav-label {
  transition: opacity var(--transition-fast);
}

.app-sidebar.collapsed .sidebar-nav-label {
  opacity: 0;
  pointer-events: none;
}

/* Tooltips in Collapsed Sidebar */
.app-sidebar.collapsed .sidebar-nav-item[title]:hover::after {
  content: attr(title);
  position: absolute;
  left: calc(var(--sidebar-width-collapsed) + 6px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-text-primary);
  color: var(--color-bg);
  padding: 5px 10px;
  font-size: 11.5px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  z-index: 200;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Sidebar Footer (Collapse Toggle) */
.sidebar-footer {
  padding: 10px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.app-sidebar.collapsed .sidebar-footer {
  justify-content: center;
}

.sidebar-toggle-btn {
  width: 100%;
  height: 36px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  cursor: pointer;
  background: transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  font-size: 12.5px;
  font-weight: 500;
}

.app-sidebar.collapsed .sidebar-toggle-btn {
  justify-content: center;
  padding: 0;
  width: 38px;
}

.sidebar-toggle-btn:hover {
  color: var(--color-text-primary);
  background: var(--color-surface-subtle);
}

/* ================================================================
   2. MAIN CONTENT AREA & TOPBAR CONTEXTUAL
   ================================================================ */
.app-main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  position: relative;
  background: var(--color-bg);
}

/* Contextual Topbar */
.app-topbar {
  height: var(--topbar-height);
  width: 100%;
  background: var(--color-frosted);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 90;
  flex-shrink: 0;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-hub {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.breadcrumb-separator {
  color: var(--color-border-hover);
  font-size: 12px;
}

.breadcrumb-current {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-primary);
  font-family: var(--font-display);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sync-status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--color-text-tertiary);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-subtle);
}

.sync-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 6px var(--color-success);
  transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.sync-dot.syncing {
  background: var(--color-warning);
  box-shadow: 0 0 6px var(--color-warning);
  animation: pulseGlow 1s ease-in-out infinite;
}

.sync-dot.offline {
  background: var(--color-danger);
  box-shadow: 0 0 6px var(--color-danger);
}

.icon-action-btn {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.icon-action-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
  background: var(--color-surface-subtle);
}

/* ================================================================
   3. MODULE WORKSPACE CONTAINERS
   ================================================================ */
.layout-root {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
  height: calc(100vh - var(--topbar-height));
}

.module-container {
  flex: 1;
  display: none;
  grid-template-columns: 440px 1fr;
  overflow: hidden;
  background: var(--color-bg);
  animation: fadeInModule 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.module-container.active {
  display: grid;
}

@keyframes fadeInModule {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Mobile Sub-Navigation */
.mobile-subnav {
  display: none;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  padding: 4px 8px;
  gap: 4px;
}

.subnav-btn {
  flex: 1;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 13px;
  color: var(--color-text-tertiary);
  cursor: pointer;
  text-align: center;
  border-radius: var(--radius-sm);
  background: transparent;
  transition: all var(--transition-fast);
}

.subnav-btn.active {
  color: var(--color-primary);
  background: var(--color-surface-alt);
}

/* Sidebar Columns (Module Settings Pane) */
.sidebar {
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-subtle) transparent;
}

.sidebar::-webkit-scrollbar {
  width: 5px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--color-border-subtle);
  border-radius: var(--radius-pill);
}

.sidebar-header {
  padding: 18px 28px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.sidebar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.form-panel {
  padding: 18px 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Main View Output */
.main-view {
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.toolbar {
  padding: 14px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: 12px;
}

.toolbar-info h2 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.filters {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

/* Responsive Queries */
@media (max-width: 1100px) {
  .module-container {
    grid-template-columns: 390px 1fr;
  }
}

@media (max-width: 860px) {
  .app-sidebar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100vw !important;
    height: 56px;
    border-right: none;
    border-top: 1px solid var(--color-border);
    flex-direction: row;
    align-items: center;
    z-index: 200;
    padding: 0 8px;
  }

  .sidebar-brand-header,
  .sidebar-section-title,
  .sidebar-footer {
    display: none;
  }

  .sidebar-nav-container {
    flex-direction: row;
    padding: 0;
    gap: 6px;
    width: 100%;
    justify-content: space-around;
  }

  .sidebar-section {
    flex-direction: row;
    gap: 6px;
  }

  .sidebar-nav-item {
    padding: 0 10px;
    height: 40px;
    justify-content: center;
  }

  .app-main-content {
    margin-bottom: 56px;
  }

  .layout-root {
    height: calc(100vh - var(--topbar-height) - 56px);
  }

  .module-container.active {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
  }

  .mobile-subnav {
    display: flex;
  }

  .sidebar {
    display: none;
    border-right: none;
    flex: 1;
  }

  .main-view {
    display: none;
    flex: 1;
  }

  .sidebar.active,
  .main-view.active {
    display: flex;
  }

  .toolbar {
    padding: 14px 16px;
  }

  .filters {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
  }

  .filters .input-wrap, .filter-select {
    width: 100%;
  }
}