/**
 * Nordic Corporate Design System - Layout Components
 * App Shell, Sidebar, Header, Grid System
 */

/* =============================================
   APP LAYOUT SHELL
   ============================================= */

.nordic-app {
  display: flex;
  min-height: 100vh;
  background: var(--nordic-bg-base);
}

.nordic-app-content {
  flex: 1;
  margin-left: var(--nordic-sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--nordic-duration-normal) var(--nordic-ease-default);
}

.nordic-app--sidebar-collapsed .nordic-app-content {
  margin-left: var(--nordic-sidebar-collapsed);
}

@media (max-width: 1024px) {
  .nordic-app-content {
    margin-left: 0;
  }
}

/* =============================================
   SIDEBAR NAVIGATION
   ============================================= */

.nordic-sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--nordic-sidebar-width);
  background: var(--nordic-bg-surface);
  border-right: 1px solid var(--nordic-border-light);
  display: flex;
  flex-direction: column;
  z-index: var(--nordic-z-fixed);
  transition: width var(--nordic-duration-normal) var(--nordic-ease-default),
              transform var(--nordic-duration-normal) var(--nordic-ease-default);
}

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

.nordic-sidebar--collapsed .nordic-sidebar__logo-text,
.nordic-sidebar--collapsed .nordic-nav__label,
.nordic-sidebar--collapsed .nordic-nav__badge,
.nordic-sidebar--collapsed .nordic-nav__section-title {
  opacity: 0;
  visibility: hidden;
  width: 0;
}

.nordic-sidebar--collapsed .nordic-sidebar__toggle svg {
  transform: rotate(180deg);
}

@media (max-width: 1024px) {
  .nordic-sidebar {
    transform: translateX(-100%);
  }

  .nordic-sidebar--open {
    transform: translateX(0);
  }
}

/* Sidebar Header */
.nordic-sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--nordic-space-5);
  border-bottom: 1px solid var(--nordic-border-light);
  min-height: var(--nordic-header-height);
}

.nordic-sidebar__logo {
  display: flex;
  align-items: center;
  gap: var(--nordic-space-3);
  text-decoration: none;
  color: var(--nordic-text-primary);
  overflow: hidden;
  cursor: pointer;
}

.nordic-sidebar__logo:hover {
  color: var(--nordic-primary);
}

.nordic-sidebar__logo-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--nordic-radius-lg);
  background: linear-gradient(135deg, var(--nordic-primary), var(--nordic-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--nordic-text-inverse);
}

.nordic-sidebar__logo-icon svg {
  width: 24px;
  height: 24px;
}

.nordic-sidebar__logo-text {
  font-family: var(--nordic-font-display);
  font-size: var(--nordic-text-xl);
  white-space: nowrap;
  transition: opacity var(--nordic-duration-fast), visibility var(--nordic-duration-fast);
}

.nordic-sidebar__toggle {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: var(--nordic-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--nordic-text-muted);
  transition: all var(--nordic-duration-fast);
}

.nordic-sidebar__toggle:hover {
  background: var(--nordic-bg-warm);
  color: var(--nordic-text-primary);
}

.nordic-sidebar__toggle svg {
  width: 20px;
  height: 20px;
  transition: transform var(--nordic-duration-normal) var(--nordic-ease-default);
}

/* Sidebar Navigation */
.nordic-sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--nordic-space-3);
}

.nordic-nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nordic-nav__item {
  margin-bottom: var(--nordic-space-1);
}

.nordic-nav__link {
  display: flex;
  align-items: center;
  gap: var(--nordic-space-3);
  padding: var(--nordic-space-3) var(--nordic-space-4);
  border-radius: var(--nordic-radius-lg);
  color: var(--nordic-text-secondary);
  text-decoration: none;
  font-size: var(--nordic-text-sm);
  font-weight: var(--nordic-weight-medium);
  transition: all var(--nordic-duration-fast) var(--nordic-ease-default);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.nordic-nav__link:hover {
  background: var(--nordic-primary-subtle);
  color: var(--nordic-primary);
}

.nordic-nav__link--active {
  background: var(--nordic-primary-subtle);
  color: var(--nordic-primary);
}

.nordic-nav__link--active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--nordic-primary);
  border-radius: 0 var(--nordic-radius-full) var(--nordic-radius-full) 0;
}

.nordic-nav__icon {
  width: 20px;
  height: 20px;
  min-width: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nordic-nav__icon svg {
  width: 20px;
  height: 20px;
}

.nordic-nav__label {
  flex: 1;
  white-space: nowrap;
  transition: opacity var(--nordic-duration-fast), visibility var(--nordic-duration-fast), width var(--nordic-duration-fast);
}

.nordic-nav__badge {
  background: var(--nordic-accent);
  color: var(--nordic-text-inverse);
  font-size: var(--nordic-text-xs);
  font-weight: var(--nordic-weight-semibold);
  padding: 2px 8px;
  border-radius: var(--nordic-radius-full);
  transition: opacity var(--nordic-duration-fast), visibility var(--nordic-duration-fast);
}

/* Navigation Sections */
.nordic-nav__section {
  margin-top: var(--nordic-space-6);
  padding-top: var(--nordic-space-4);
  border-top: 1px solid var(--nordic-border-light);
}

.nordic-nav__section-title {
  display: block;
  padding: 0 var(--nordic-space-4);
  margin-bottom: var(--nordic-space-2);
  font-size: var(--nordic-text-xs);
  font-weight: var(--nordic-weight-semibold);
  color: var(--nordic-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--nordic-tracking-wider);
  white-space: nowrap;
  transition: opacity var(--nordic-duration-fast), visibility var(--nordic-duration-fast);
}

/* Sidebar Footer */
.nordic-sidebar__footer {
  padding: var(--nordic-space-3);
  border-top: 1px solid var(--nordic-border-light);
}

/* =============================================
   HEADER
   ============================================= */

.nordic-header {
  position: fixed;
  top: 0;
  left: var(--nordic-sidebar-width);
  right: 0;
  height: var(--nordic-header-height);
  background: var(--nordic-glass-bg);
  backdrop-filter: var(--nordic-glass-blur);
  -webkit-backdrop-filter: var(--nordic-glass-blur);
  border-bottom: 1px solid var(--nordic-border-light);
  display: flex;
  align-items: center;
  padding: 0 var(--nordic-space-6);
  z-index: var(--nordic-z-sticky);
  transition: left var(--nordic-duration-normal) var(--nordic-ease-default);
}

.nordic-app--sidebar-collapsed .nordic-header {
  left: var(--nordic-sidebar-collapsed);
}

@media (max-width: 1024px) {
  .nordic-header {
    left: 0;
  }
}

/* Header Left - Breadcrumb & Mobile Menu */
.nordic-header__left {
  display: flex;
  align-items: center;
  gap: var(--nordic-space-4);
}

.nordic-header__menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--nordic-radius-md);
  align-items: center;
  justify-content: center;
  color: var(--nordic-text-secondary);
  transition: all var(--nordic-duration-fast);
}

.nordic-header__menu-btn:hover {
  background: var(--nordic-primary-subtle);
  color: var(--nordic-primary);
}

@media (max-width: 1024px) {
  .nordic-header__menu-btn {
    display: flex;
  }
}

/* Breadcrumb */
.nordic-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--nordic-space-2);
  font-size: var(--nordic-text-sm);
}

.nordic-breadcrumb__item {
  color: var(--nordic-text-muted);
  text-decoration: none;
  transition: color var(--nordic-duration-fast);
  cursor: pointer;
}

.nordic-breadcrumb__item:hover {
  color: var(--nordic-primary);
  text-decoration: underline;
}

.nordic-breadcrumb__item--current {
  color: var(--nordic-text-primary);
  font-weight: var(--nordic-weight-medium);
}

.nordic-breadcrumb__separator {
  color: var(--nordic-border-medium);
}

@media (max-width: 768px) {
  .nordic-breadcrumb {
    display: none;
  }
}

/* Header Center - Search */
.nordic-header__center {
  flex: 1;
  display: flex;
  justify-content: center;
  max-width: 480px;
  margin: 0 var(--nordic-space-6);
}

/* Header Right - Actions */
.nordic-header__right {
  display: flex;
  align-items: center;
  gap: var(--nordic-space-3);
}

/* Header Icon Button */
.nordic-header__icon-btn {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--nordic-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--nordic-text-secondary);
  transition: all var(--nordic-duration-fast);
}

.nordic-header__icon-btn:hover {
  background: var(--nordic-primary-subtle);
  color: var(--nordic-primary);
}

.nordic-header__icon-btn svg {
  width: 20px;
  height: 20px;
}

.nordic-header__icon-btn .nordic-badge-dot {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 8px;
  height: 8px;
  background: var(--nordic-accent);
  border-radius: var(--nordic-radius-full);
  border: 2px solid var(--nordic-bg-surface);
}

/* =============================================
   SEARCH BAR (Glassmorphism)
   ============================================= */

.nordic-search {
  position: relative;
  width: 100%;
}

.nordic-search__input-wrapper {
  display: flex;
  align-items: center;
  background: var(--nordic-glass-bg-light);
  backdrop-filter: var(--nordic-glass-blur);
  -webkit-backdrop-filter: var(--nordic-glass-blur);
  border: 1px solid var(--nordic-border-light);
  border-radius: var(--nordic-radius-full);
  padding: var(--nordic-space-2) var(--nordic-space-4);
  transition: all var(--nordic-duration-fast) var(--nordic-ease-default);
}

.nordic-search__input-wrapper:focus-within {
  background: var(--nordic-bg-surface);
  border-color: var(--nordic-primary);
  box-shadow: var(--nordic-shadow-focus);
}

.nordic-search__icon {
  width: 20px;
  height: 20px;
  color: var(--nordic-text-muted);
  flex-shrink: 0;
}

.nordic-search__input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--nordic-font-body);
  font-size: var(--nordic-text-sm);
  padding: var(--nordic-space-2);
  outline: none;
  color: var(--nordic-text-primary);
  min-width: 200px;
}

.nordic-search__input::placeholder {
  color: var(--nordic-text-muted);
}

.nordic-search__shortcut {
  background: var(--nordic-bg-warm);
  border-radius: var(--nordic-radius-sm);
  padding: 2px 8px;
  font-size: var(--nordic-text-xs);
  color: var(--nordic-text-muted);
  font-family: var(--nordic-font-body);
  white-space: nowrap;
}

/* Search Dropdown */
.nordic-search__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--nordic-bg-surface);
  border-radius: var(--nordic-radius-xl);
  box-shadow: var(--nordic-shadow-xl);
  border: 1px solid var(--nordic-border-light);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--nordic-duration-fast) var(--nordic-ease-out);
  z-index: var(--nordic-z-dropdown);
}

.nordic-search:focus-within .nordic-search__dropdown,
.nordic-search__dropdown:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nordic-search__results {
  max-height: 320px;
  overflow-y: auto;
}

.nordic-search__result {
  display: flex;
  align-items: center;
  gap: var(--nordic-space-3);
  padding: var(--nordic-space-3) var(--nordic-space-4);
  cursor: pointer;
  transition: background var(--nordic-duration-fast);
}

.nordic-search__result:hover {
  background: var(--nordic-primary-subtle);
}

.nordic-search__result-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--nordic-radius-md);
  object-fit: cover;
}

.nordic-search__result-info {
  flex: 1;
  min-width: 0;
}

.nordic-search__result-name {
  font-weight: var(--nordic-weight-medium);
  color: var(--nordic-text-primary);
  font-size: var(--nordic-text-sm);
}

.nordic-search__result-position {
  font-size: var(--nordic-text-xs);
  color: var(--nordic-text-muted);
}

.nordic-search__footer {
  padding: var(--nordic-space-3) var(--nordic-space-4);
  border-top: 1px solid var(--nordic-border-light);
  background: var(--nordic-bg-warm);
  font-size: var(--nordic-text-xs);
  color: var(--nordic-text-muted);
  text-align: center;
}

/* =============================================
   USER MENU (Dropdown)
   ============================================= */

.nordic-user-menu {
  position: relative;
}

.nordic-user-menu__trigger {
  display: flex;
  align-items: center;
  gap: var(--nordic-space-2);
  padding: var(--nordic-space-1) var(--nordic-space-3) var(--nordic-space-1) var(--nordic-space-1);
  border-radius: var(--nordic-radius-full);
  transition: background var(--nordic-duration-fast);
}

.nordic-user-menu__trigger:hover {
  background: var(--nordic-bg-warm);
}

.nordic-user-menu__avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--nordic-radius-full);
  object-fit: cover;
}

.nordic-user-menu__name {
  font-size: var(--nordic-text-sm);
  font-weight: var(--nordic-weight-medium);
  color: var(--nordic-text-primary);
}

@media (max-width: 640px) {
  .nordic-user-menu__name {
    display: none;
  }
}

.nordic-user-menu__chevron {
  width: 16px;
  height: 16px;
  color: var(--nordic-text-muted);
  transition: transform var(--nordic-duration-fast);
}

.nordic-user-menu__trigger[aria-expanded="true"] .nordic-user-menu__chevron {
  transform: rotate(180deg);
}

/* User Dropdown */
.nordic-user-menu__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 220px;
  background: var(--nordic-bg-surface);
  border-radius: var(--nordic-radius-xl);
  box-shadow: var(--nordic-shadow-xl);
  border: 1px solid var(--nordic-border-light);
  padding: var(--nordic-space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--nordic-duration-fast) var(--nordic-ease-out);
  z-index: var(--nordic-z-dropdown);
}

.nordic-user-menu__trigger[aria-expanded="true"] + .nordic-user-menu__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nordic-user-menu__item {
  display: flex;
  align-items: center;
  gap: var(--nordic-space-3);
  padding: var(--nordic-space-3);
  border-radius: var(--nordic-radius-md);
  font-size: var(--nordic-text-sm);
  color: var(--nordic-text-secondary);
  text-decoration: none;
  transition: all var(--nordic-duration-fast);
}

.nordic-user-menu__item:hover {
  background: var(--nordic-primary-subtle);
  color: var(--nordic-text-primary);
}

.nordic-user-menu__item svg {
  width: 16px;
  height: 16px;
}

.nordic-user-menu__item--danger {
  color: var(--nordic-error);
}

.nordic-user-menu__item--danger:hover {
  background: var(--nordic-error-bg);
  color: var(--nordic-error);
}

.nordic-user-menu__divider {
  height: 1px;
  background: var(--nordic-border-light);
  margin: var(--nordic-space-2) 0;
}

/* =============================================
   MAIN CONTENT AREA
   ============================================= */

.nordic-main {
  padding-top: var(--nordic-header-height);
  min-height: 100vh;
}

.nordic-main__content {
  padding: var(--nordic-space-6);
}

@media (max-width: 768px) {
  .nordic-main__content {
    padding: var(--nordic-space-4);
  }
}

/* =============================================
   PAGE HEADER
   ============================================= */

.nordic-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--nordic-space-6);
  padding-bottom: var(--nordic-space-5);
  border-bottom: 1px solid var(--nordic-border-light);
}

.nordic-page-header__title {
  display: flex;
  align-items: baseline;
  gap: var(--nordic-space-4);
}

.nordic-page-header__title h1 {
  font-family: var(--nordic-font-display);
  font-size: var(--nordic-text-3xl);
  color: var(--nordic-text-primary);
}

.nordic-page-header__count {
  font-size: var(--nordic-text-sm);
  color: var(--nordic-text-muted);
}

.nordic-page-header__actions {
  display: flex;
  align-items: center;
  gap: var(--nordic-space-3);
}

/* =============================================
   CONTAINER & GRID
   ============================================= */

.nordic-container {
  width: 100%;
  max-width: var(--nordic-container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--nordic-space-4);
  padding-right: var(--nordic-space-4);
}

.nordic-container--sm { max-width: var(--nordic-container-sm); }
.nordic-container--md { max-width: var(--nordic-container-md); }
.nordic-container--lg { max-width: var(--nordic-container-lg); }
.nordic-container--2xl { max-width: var(--nordic-container-2xl); }
.nordic-container--full { max-width: 100%; }

/* Grid */
.nordic-grid {
  display: grid;
  gap: var(--nordic-space-6);
}

.nordic-grid--cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.nordic-grid--cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.nordic-grid--cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.nordic-grid--cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Auto-fit grid */
.nordic-grid--auto-fill {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.nordic-grid--auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

@media (max-width: 768px) {
  .nordic-grid--cols-2,
  .nordic-grid--cols-3,
  .nordic-grid--cols-4 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .nordic-grid--cols-3,
  .nordic-grid--cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Two-column layout with sidebar */
.nordic-layout-2col {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--nordic-space-6);
}

@media (max-width: 1024px) {
  .nordic-layout-2col {
    grid-template-columns: 1fr;
  }
}

/* =============================================
   MOBILE SIDEBAR OVERLAY
   ============================================= */

.nordic-sidebar-overlay {
  position: fixed;
  inset: 0;
  background: var(--nordic-bg-overlay);
  z-index: calc(var(--nordic-z-fixed) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--nordic-duration-normal);
}

.nordic-sidebar-overlay--visible {
  opacity: 1;
  visibility: visible;
}