/* ============================================================
   YBT Management Software — Layout System
   App shell, sidebar, topbar, main content, and responsiveness
   ============================================================ */

/* ---------- App Shell ---------- */
.app-shell {
  display: flex;
  min-height: 100vh;
  background-color: var(--color-bg);
  color: var(--color-text);
  position: relative;
}

.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition);
}

.sidebar.collapsed ~ .main-wrapper {
  margin-left: var(--sidebar-compact-width);
}

/* ---------- Main Content Area ---------- */
.main-content {
  flex: 1;
  padding: var(--space-6) var(--space-8);
  min-height: calc(100vh - var(--topbar-height) - 50px);
}

.content-container {
  max-width: var(--content-max-width);
  margin: 0 auto;
  width: 100%;
}

/* ---------- App Footer ---------- */
.app-footer {
  height: 50px;
  padding: 0 var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer-right .text-separator {
  margin: 0 var(--space-2);
}

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

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

/* Sidebar Brand Header */
.sidebar-header {
  height: var(--topbar-height);
  padding: 0 var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  overflow: hidden;
}

.brand-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(14, 165, 233, 0.35);
}

.brand-text {
  display: flex;
  flex-direction: column;
  white-space: nowrap;
  transition: opacity var(--transition);
}

.brand-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.brand-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sidebar-toggle-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

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

.sidebar.collapsed .sidebar-brand .brand-text {
  display: none;
}

.sidebar.collapsed .sidebar-toggle-btn i {
  transform: rotate(180deg);
}

/* Sidebar Business Info Banner */
.sidebar-business-info {
  padding: var(--space-3) var(--space-4);
  margin: var(--space-3) var(--space-3) var(--space-1);
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  overflow: hidden;
  transition: padding var(--transition);
}

.business-badge-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.business-badge-details {
  overflow: hidden;
  white-space: nowrap;
}

.business-name {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role-tag {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
}

.sidebar.collapsed .sidebar-business-info {
  padding: var(--space-2);
  justify-content: center;
  margin: var(--space-2);
}

.sidebar.collapsed .business-badge-details {
  display: none;
}

/* Sidebar Navigation Items */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-2) var(--space-3);
}

.sidebar-nav::-webkit-scrollbar {
  width: 4px;
}
.sidebar-nav::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section-title {
  padding: var(--space-3) var(--space-3) var(--space-1);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.sidebar.collapsed .nav-section-title {
  display: none;
}

.nav-item {
  list-style: none;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.5625rem 0.75rem;
  border-radius: var(--radius);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

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

.nav-link.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.nav-link.active .nav-icon {
  color: var(--color-primary);
}

.nav-icon {
  font-size: 1.125rem;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav-link:hover .nav-icon {
  color: var(--color-primary);
}

.nav-label {
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.nav-badge {
  font-size: 0.6875rem;
  font-weight: var(--font-weight-bold);
  padding: 0.125rem 0.4rem;
  border-radius: var(--radius-full);
  margin-left: auto;
}

.sidebar.collapsed .nav-label,
.sidebar.collapsed .nav-badge,
.sidebar.collapsed .badge {
  display: none;
}

.sidebar.collapsed .nav-link {
  justify-content: center;
  padding: 0.625rem 0;
}

.sidebar.collapsed .nav-icon {
  margin: 0;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.sidebar-logout-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.5rem var(--space-2);
  color: var(--color-error);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius);
  transition: background var(--transition-fast);
}

.sidebar-logout-link:hover {
  background: var(--color-error-light);
}

.sidebar.collapsed .logout-label {
  display: none;
}
.sidebar.collapsed .sidebar-logout-link {
  justify-content: center;
}

/* ---------- Topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--topbar-height);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  box-shadow: var(--shadow-sm);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex: 1;
  max-width: 540px;
}

.mobile-menu-toggle {
  display: none;
}

/* Global Search Component */
.global-search-container {
  position: relative;
  width: 100%;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.search-input-wrapper .search-icon {
  position: absolute;
  left: 0.75rem;
  color: var(--color-text-muted);
  font-size: 1rem;
  pointer-events: none;
}

.global-search-input {
  width: 100%;
  height: 38px;
  padding: 0 2.5rem 0 2.25rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  outline: none;
  transition: all var(--transition-fast);
}

.global-search-input:focus {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.search-shortcut {
  position: absolute;
  right: 0.75rem;
  padding: 0.125rem 0.375rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  pointer-events: none;
}

.search-dropdown-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-height: 380px;
  overflow-y: auto;
  z-index: var(--z-dropdown);
  padding: var(--space-2);
}

.search-result-item {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  transition: background var(--transition-fast);
}

.search-result-item:hover {
  background: var(--color-surface-hover);
}

.search-item-type {
  font-size: 0.6875rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  color: var(--color-primary);
}

.search-item-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.search-item-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* User Menu Dropdown */
.user-avatar-btn {
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.user-avatar-btn:hover {
  transform: scale(1.05);
}

.user-profile-card {
  width: 240px;
  padding: var(--space-3);
}

.user-menu-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
}

.user-menu-info .user-name {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.user-menu-info .user-email {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ---------- Grid System Utilities ---------- */
.grid {
  display: grid;
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }

.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-5 { grid-column: span 5 / span 5; }
.col-span-6 { grid-column: span 6 / span 6; }

/* ---------- KPI Grid Layout ---------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

@media (max-width: 1200px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Pipeline Kanban Layout ---------- */
.pipeline-kanban-board {
  display: grid;
  grid-template-columns: repeat(6, minmax(220px, 1fr));
  gap: var(--space-4);
  overflow-x: auto;
  padding-bottom: var(--space-4);
}

.kanban-column {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  min-height: 500px;
}

.kanban-column-header {
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-border);
}

.kanban-cards-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* ---------- Mobile Overlay ---------- */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  z-index: calc(var(--z-sticky) - 1);
}

.mobile-overlay.active {
  display: block;
}