/* =================================================================
   Octofusion UI - Layout Styles
   Sidebar, Header, Footer, and main layout structure
   ================================================================= */

/* =================================================================
   App Layout Container
   ================================================================= */
.app-layout {
  display: flex;
  min-height: 100vh;
  background-color: var(--bg-secondary);
}

.app-layout__wrapper {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  transition: margin-left var(--transition-normal);
}

.app-layout__wrapper--with-sidebar {
  margin-left: var(--sidebar-width);
}

.app-layout__wrapper--with-sidebar-collapsed {
  margin-left: var(--sidebar-width-collapsed);
}

.app-layout__main {
  flex: 1;
  padding: var(--spacing-xl);
  margin-top: var(--header-height);
  margin-bottom: var(--footer-height);
  min-height: calc(100vh - var(--header-height) - var(--footer-height));
}

/* =================================================================
   Sidebar
   ================================================================= */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background-color: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: width var(--transition-normal), transform var(--transition-normal);
  z-index: var(--z-fixed);
  overflow: hidden;
}

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

.sidebar--collapsed:hover {
  width: var(--sidebar-width);
  box-shadow: var(--shadow-xl);
}

/* Sidebar Logo */
.sidebar__header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.sidebar__hamburger {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background-color: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.sidebar__hamburger:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
  transform: scale(1.05);
}

.sidebar__hamburger-icon {
  font-size: var(--font-size-xl);
  font-style: normal;
  transition: transform var(--transition-normal);
}

.sidebar--collapsed .sidebar__hamburger-icon {
  transform: rotate(90deg);
}

.sidebar__logo {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
}

.sidebar__logo-image {
  width: auto;
  transition: opacity var(--transition-fast);
}

.sidebar__logo-image--full {
  opacity: 1;
}

.sidebar__logo-image--collapsed {
  opacity: 0;
  position: absolute;
}

.sidebar--collapsed .sidebar__logo-image--full {
  opacity: 0;
  position: absolute;
}

.sidebar--collapsed .sidebar__logo-image--collapsed {
  opacity: 1;
  position: relative;
}

.sidebar--collapsed:hover .sidebar__logo-image--full {
  opacity: 1;
  position: relative;
}

.sidebar--collapsed:hover .sidebar__logo-image--collapsed {
  opacity: 0;
  position: absolute;
}

/* Sidebar Toggle Button - Removed, using hamburger instead */

/* Sidebar Navigation */
.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--spacing-sm) 0;
}

/* Menu Items */
.sidebar__menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar__menu-item {
  position: relative;
}

.sidebar__menu-link {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  user-select: none;
  position: relative;
  font-size: 14px;
  border-radius: var(--radius-full);
  margin: 3px 12px;
  font-weight: var(--font-weight-medium);
  gap: 12px;
}

.sidebar__menu-link:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar__menu-link--active,
.sidebar__submenu-link--active {
  color: #FFFFFF !important;
  background-color: var(--color-primary-600) !important;
  font-weight: var(--font-weight-semibold);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.35);
}

.sidebar__menu-link--active .sidebar__menu-icon,
.sidebar__submenu-link--active .sidebar__menu-icon {
  opacity: 1 !important;
  color: #FFFFFF !important;
}

:root[data-theme="dark"] .sidebar__menu-link--active,
:root[data-theme="dark"] .sidebar__submenu-link--active {
  background-color: var(--color-primary-600) !important;
  color: #FFFFFF !important;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.4);
}

.sidebar__menu-link--parent {
  /* Parent menu items with submenu */
}

.sidebar__menu-icon {
  font-size: 18px;
  font-style: normal;
  opacity: 0.5;
  flex-shrink: 0;
  line-height: 1;
  width: 22px;
  text-align: center;
}

.sidebar__menu-link:hover .sidebar__menu-icon {
  opacity: 0.85;
}

.sidebar__menu-text {
  flex: 1;
  white-space: nowrap;
  opacity: 1;
  transition: opacity var(--transition-fast);
  font-size: 14px;
  font-weight: inherit;
  font-style: normal;
}

.sidebar--collapsed .sidebar__menu-text {
  opacity: 0;
  width: 0;
  margin: 0;
}

.sidebar--collapsed:hover .sidebar__menu-text {
  opacity: 1;
  width: auto;
  margin-left: var(--spacing-md);
}

/* Collapsed: hide arrow; restore on hover */
.sidebar--collapsed .sidebar__menu-arrow {
  display: none;
}

.sidebar--collapsed:hover .sidebar__menu-arrow {
  display: block;
}

/* Collapsed: force open submenus closed; restore on hover */
.sidebar--collapsed .sidebar__submenu-wrapper.sidebar__submenu-wrapper--open {
  grid-template-rows: 0fr;
}

.sidebar--collapsed:hover .sidebar__submenu-wrapper.sidebar__submenu-wrapper--open {
  grid-template-rows: 1fr;
}

.sidebar__menu-arrow {
  font-size: 12px;
  transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1);
  margin-left: auto;
  font-style: normal;
  opacity: 0.35;
  font-weight: var(--font-weight-normal);
}

.sidebar__menu-item.open > .sidebar__menu-link .sidebar__menu-arrow,
.sidebar__menu-item.open > div.sidebar__menu-link .sidebar__menu-arrow {
  transform: rotate(90deg);
  opacity: 0.6;
}

/* Submenu - animated with CSS grid trick */
.sidebar__submenu-wrapper {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar__submenu-wrapper.sidebar__submenu-wrapper--open {
  grid-template-rows: 1fr;
}

.sidebar__submenu {
  list-style: none;
  padding: 0;
  margin: 0;
  background-color: transparent;
  overflow: hidden;
  min-height: 0;
}

.sidebar__submenu-item {
  /* Submenu items */
}

.sidebar__submenu-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px 7px 26px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  transition: all var(--transition-fast);
  border-radius: var(--radius-full);
  margin: 1px 12px;
  font-weight: var(--font-weight-normal);
  font-style: normal;
}

/* Level 2 (nested inside a submenu) - indented + left accent */
.sidebar__submenu .sidebar__submenu-wrapper {
  margin-left: 10px;
  padding-left: 8px;
  border-left: 2px solid var(--border-color);
}

/* Level 3 (deeper nesting) */
.sidebar__submenu .sidebar__submenu .sidebar__submenu-wrapper {
  margin-left: 6px;
  padding-left: 6px;
  border-left: 2px dashed var(--border-color);
}

/* Nested menu-link inside submenus - compact */
.sidebar__submenu .sidebar__menu-link {
  padding: 7px 14px;
  font-size: 13px;
  margin: 1px 8px;
  gap: 10px;
}

.sidebar__submenu .sidebar__menu-icon {
  font-size: 15px;
  width: 18px;
}

.sidebar__submenu .sidebar__submenu .sidebar__menu-link {
  padding: 6px 12px;
  font-size: 12.5px;
  margin: 1px 4px;
}

.sidebar__submenu .sidebar__submenu .sidebar__menu-icon {
  font-size: 13px;
  width: 16px;
}

.sidebar__submenu .sidebar__submenu .sidebar__submenu-link {
  font-size: 12.5px;
  padding: 6px 10px 6px 16px;
  margin: 1px 4px;
}

/* Ensure no italics in sidebar */
.sidebar i,
.sidebar em,
.sidebar .sidebar__menu-icon {
  font-style: normal !important;
}

.sidebar__submenu-link:hover {
  background-color: var(--color-primary-50);
  color: var(--color-primary-700);
}

:root[data-theme="dark"] .sidebar__submenu-link:hover {
  background-color: rgba(99, 102, 241, 0.08);
  color: var(--color-primary-300);
}

/* Menu section header */
.sidebar__menu-header-text {
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Sidebar Footer */
.sidebar__footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  flex-shrink: 0;
}

/* =================================================================
   Header
   ================================================================= */
.header {
  position: fixed;
  top: 0;
  right: 0;
  left: var(--sidebar-width);
  height: var(--header-height);
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-xl);
  gap: var(--spacing-lg);
  z-index: var(--z-sticky);
  transition: left var(--transition-normal);
}

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

.header__spacer {
  flex: 1;
}

/* Project Logo in Header */
.header__project-logo-wrapper {
  display: flex;
  align-items: center;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  height: 100%;
}

.header__project-logo {
  height: calc(var(--header-height) - 28px);
  max-width: 160px;
  width: auto;
  object-fit: contain;
  object-position: left center;
  display: block;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Header Button Base */
.header__button {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  background-color: transparent;
}

.header__button:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.header__button-icon {
  font-size: var(--font-size-xl);
  font-style: normal;
  line-height: 1;
  color: inherit;
}

/* Theme toggle icon: show moon in light mode, sun in dark mode */
.theme-icon--dark {
  display: none;
}

[data-theme="dark"] .theme-icon--light {
  display: none;
}

[data-theme="dark"] .theme-icon--dark {
  display: inline-flex;
}

/* Notification Badge */
.header__badge {
  position: absolute;
  top: 6px;
  right: 6px;
  min-width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-error);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  padding: 0 4px;
}

/* Project Selector */
.header__project-selector {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: all var(--transition-fast);
  cursor: pointer;
  height: 40px;
}

.header__project-selector:hover {
  background-color: var(--bg-hover);
  border-color: var(--border-color-hover);
}

.header__project-icon {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary-100);
  color: var(--color-primary-600);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.header__project-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  max-width: 150px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header__project-arrow {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  font-style: normal;
}

/* User Profile */
.header__user {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  background-color: var(--bg-primary);
  min-width: 0;
}

.header__user:hover {
  background-color: var(--bg-hover);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-sm);
}

.header__user-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--color-primary-200);
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.header__user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
  flex: 1;
}

.header__user-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.header__user-role {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.header__user-chevron {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  margin-left: var(--spacing-xs);
  transition: transform var(--transition-fast);
  font-style: normal;
}

.header__user:hover .header__user-chevron {
  transform: translateY(2px);
}

/* =================================================================
   Footer
   ================================================================= */
.footer {
  position: fixed;
  bottom: 0;
  right: 0;
  left: var(--sidebar-width);
  height: var(--footer-height);
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-xl);
  z-index: var(--z-sticky);
  transition: left var(--transition-normal);
}

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

/* Left side: copyright + separator + links */
.footer__left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  white-space: nowrap;
}

.footer__sep {
  color: var(--border-color-hover);
  font-size: var(--font-size-sm);
  user-select: none;
}

.footer__links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__link {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-primary-600);
}

/* Right side: version + brand logo */
.footer__right {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex-shrink: 0;
}

.footer__version {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.footer__brand {
  display: flex;
  align-items: center;
}

.footer__brand-logo {
  height: 22px;
  width: auto;
  object-fit: contain;
}

/* Show light logo in light mode, dark logo in dark mode */
.footer__brand-logo--dark {
  display: none;
}

[data-theme="dark"] .footer__brand-logo--light {
  display: none;
}

[data-theme="dark"] .footer__brand-logo--dark {
  display: block;
}

/* =================================================================
   Responsive Design
   ================================================================= */

/* Tablet */
@media (max-width: 1024px) {
  .app-layout__main {
    padding: var(--spacing-lg);
  }

  .header__user-info {
    display: none;
  }

  .header__user-chevron {
    display: none;
  }

  .header__project-name {
    max-width: 100px;
  }

  .dropdown__menu--user {
    min-width: 260px;
    max-width: 280px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

  .app-layout__wrapper--with-sidebar,
  .app-layout__wrapper--with-sidebar-collapsed {
    margin-left: 0;
  }

  .header {
    left: 0;
  }

  .header--sidebar-collapsed {
    left: 0;
  }

  .footer {
    left: 0;
  }

  .footer--sidebar-collapsed {
    left: 0;
  }

  .app-layout__main {
    padding: var(--spacing-md);
  }

  .header__project-selector {
    padding: var(--spacing-sm);
  }

  .header__project-name,
  .header__project-arrow {
    display: none;
  }

  .footer__left {
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: flex-start;
  }

  .footer__sep {
    display: none;
  }

  .footer__links {
    gap: var(--spacing-sm);
  }

  /* Dropdown adjustments for mobile */
  .dropdown__menu {
    max-width: calc(100vw - 32px);
    left: 50%;
    right: auto;
    transform: translateX(-50%) translateY(-10px);
  }

  .dropdown__menu--visible {
    transform: translateX(-50%) translateY(0);
  }

  .notifications-dropdown {
    min-width: calc(100vw - 32px);
    max-width: calc(100vw - 32px);
  }

  .dropdown__menu--user {
    min-width: calc(100vw - 32px);
    max-width: calc(100vw - 32px);
  }
}

/* Mobile - Sidebar Overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-fixed) - 1);
}

.sidebar-overlay--visible {
  display: block;
}

/* Hamburger menu - Always visible for better UX */
.header__hamburger {
  display: none; /* Hide header hamburger, we use sidebar hamburger */
}

@media (max-width: 768px) {
  .header__hamburger {
    display: flex;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    background-color: transparent;
    border: none;
    cursor: pointer;
  }

  .header__hamburger:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
  }

  .sidebar__hamburger {
    display: none; /* Hide desktop hamburger on mobile */
  }
}

@media (min-width: 769px) {
  .header__hamburger {
    display: none;
  }

  .sidebar__hamburger {
    display: flex; /* Show sidebar hamburger on desktop */
  }

  /* Safety net: always force-hide overlay on desktop regardless of JS state */
  .sidebar-overlay {
    display: none !important;
  }
}

/* Mobile close button (shown only on mobile) */
.sidebar__mobile-close {
  display: none;
}

@media (max-width: 768px) {
  .sidebar__mobile-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background-color: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    font-size: var(--font-size-lg);
  }

  .sidebar__mobile-close:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
  }
}