/* ==========================================================================
   DIALLO HRMS — LAYOUT & NAVIGATION SHELL
   ========================================================================== */

/* Main App Container */
.app-container {
  display: flex;
  min-height: 100vh;
  background-color: var(--bg-app);
}

/* ----------------------------------------------------
   TOP HEADER
   ---------------------------------------------------- */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 40;
  box-sizing: border-box;
  max-width: 100vw;
  transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  min-width: 0;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
  user-select: none;
  min-width: 0;
}

.brand-icon-box {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.35);
  overflow: hidden;
}
.brand-icon-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brand-name {
  display: flex;
  align-items: center;
  gap: 4px;
}
.brand-name span.hrms-tag {
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--primary-light);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
  margin-left: 2px;
}

.sidebar-toggle-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: transparent;
  transition: all var(--transition-speed);
}
.sidebar-toggle-btn:hover {
  background: var(--bg-hover);
  color: var(--text-main);
}

/* Header Center: Global Search */
.header-center {
  flex: 1;
  max-width: 260px;
  margin: 0 12px;
  min-width: 0;
}

.global-search-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background-color: var(--bg-hover);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-speed);
}
.global-search-trigger:hover {
  border-color: var(--border-dark);
  background-color: var(--bg-card);
  color: var(--text-secondary);
}
.search-shortcut-badge {
  font-size: 0.68rem;
  background: var(--bg-card);
  border: 1px solid var(--border-main);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--text-muted);
  font-family: monospace;
}

/* Header Right */
.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 1;
  min-width: 0;
}

.header-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  height: 34px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-main);
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 500;
  transition: all var(--transition-speed);
  max-width: 160px;
}
.header-dropdown-btn span.label-text {
  max-width: 90px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.header-dropdown-btn:hover {
  background-color: var(--bg-hover);
  border-color: var(--border-dark);
}

.header-icon-btn {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  border: 1px solid var(--border-main);
  background-color: var(--bg-card);
  transition: all var(--transition-speed);
  flex-shrink: 0;
}
.header-icon-btn:hover {
  background-color: var(--bg-hover);
  color: var(--text-main);
}
.notification-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--danger);
  border: 2px solid var(--bg-header);
}

/* User Profile Trigger */
.user-profile-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 10px 3px 4px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-main);
  background-color: var(--bg-card);
  cursor: pointer;
  transition: all var(--transition-speed);
  max-width: 170px;
  flex-shrink: 0;
}
.user-profile-trigger:hover {
  background-color: var(--bg-hover);
}
.avatar-img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  flex-shrink: 0;
}
.user-name-label {
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-main);
  max-width: 90px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.2;
}
.user-role-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  max-width: 90px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.2;
}

/* ----------------------------------------------------
   LEFT SIDEBAR
   ---------------------------------------------------- */
.app-sidebar {
  position: fixed;
  top: var(--header-height);
  bottom: 0;
  left: 0;
  width: var(--sidebar-width);
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-main);
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 12px;
  z-index: 30;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: width var(--transition-speed) var(--transition-ease),
              transform var(--transition-speed) var(--transition-ease),
              background-color var(--transition-speed);
}

.sidebar-nav-section {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sidebar-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 10px 12px 4px 12px;
  user-select: none;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s ease;
  position: relative;
  user-select: none;
}

.nav-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: currentColor;
}

.nav-link:hover {
  background-color: var(--bg-hover);
  color: var(--text-main);
}

/* Active State: subtle blue background + blue text/icon */
.nav-link.active {
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background-color: var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.nav-badge {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background-color: var(--bg-hover);
  color: var(--text-secondary);
}
.nav-link.active .nav-badge {
  background-color: var(--primary);
  color: #ffffff;
}

/* Sidebar Footer / Collapse Info */
.sidebar-footer {
  padding-top: 16px;
  border-top: 1px solid var(--border-main);
  margin-top: 16px;
}
.workspace-status {
  padding: 8px 12px;
  background: var(--bg-hover);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
}

/* Collapsed Sidebar Mode */
.app-container.sidebar-collapsed .app-sidebar {
  width: var(--sidebar-collapsed-width);
}
.app-container.sidebar-collapsed .app-sidebar .sidebar-section-title,
.app-container.sidebar-collapsed .app-sidebar .nav-text,
.app-container.sidebar-collapsed .app-sidebar .nav-badge,
.app-container.sidebar-collapsed .app-sidebar .sidebar-footer {
  display: none;
}
.app-container.sidebar-collapsed .app-sidebar .nav-link {
  justify-content: center;
  padding: 10px;
}
.app-container.sidebar-collapsed .main-wrapper {
  margin-left: var(--sidebar-collapsed-width);
}

/* ----------------------------------------------------
   MAIN CONTENT WRAPPER
   ---------------------------------------------------- */
.main-wrapper {
  margin-left: var(--sidebar-width);
  margin-top: var(--header-height);
  flex: 1;
  min-width: 0;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition-speed) var(--transition-ease);
}

.main-content {
  flex: 1;
  padding: 24px 32px 48px 32px;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
}

/* Breadcrumbs & Page Headers */
.page-header {
  margin-bottom: 24px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb-separator {
  color: var(--text-muted);
}
.breadcrumb-current {
  color: var(--text-main);
  font-weight: 500;
}

.page-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.page-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-main);
}
.page-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 2px;
}
.page-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Sidebar Backdrop on Mobile */
.sidebar-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-overlay);
  z-index: 25;
  display: none;
  opacity: 0;
  transition: opacity var(--transition-speed);
}