/* Application Shell Structure */
.app-wrapper {
  display: flex;
  min-height: 100vh;
  background-color: var(--color-bg);
}

/* Sidebar Styling */
.app-sidebar {
  width: var(--sidebar-width);
  background-color: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: var(--z-drawer);
  transition: width var(--transition-normal), transform var(--transition-normal);
}

.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-subtle);
}

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

.brand-icon-wrapper {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: var(--shadow-primary);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Sidebar Navigation */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.nav-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-section-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0 var(--space-3) var(--space-2) var(--space-3);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-item:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-darker);
}

.nav-item.active {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-darker);
  font-weight: var(--font-weight-semibold);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3.5px;
  background-color: var(--color-primary);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}

.nav-item .nav-badge {
  margin-left: auto;
  background-color: var(--color-coral-soft);
  color: var(--color-coral-text);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  padding: 2px 6px;
  border-radius: var(--radius-full);
}

/* Sidebar Footer / User Profile */
.sidebar-footer {
  padding: var(--space-3);
  border-top: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface-secondary);
}

.user-profile-mini {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
  cursor: pointer;
}

.user-profile-mini:hover {
  background-color: var(--color-surface-tertiary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-soft);
  color: var(--color-primary-darker);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-primary);
}

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

.user-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-clinic {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Main Content Container */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-width: 0;
  transition: margin-left var(--transition-normal);
}

/* Topbar Styling */
.app-topbar {
  height: var(--topbar-height);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}

/* Global Search Trigger */
.global-search-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-surface-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-subtle);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.global-search-trigger:hover {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-focus);
}

.search-placeholder {
  flex: 1;
  text-align: left;
}

.search-kbd {
  font-size: 0.7rem;
  font-weight: var(--font-weight-semibold);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  padding: 2px 6px;
  color: var(--color-text-muted);
}

/* Topbar Right Actions */
.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.notification-btn {
  position: relative;
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.notification-btn:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
}

.notification-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 10px;
  height: 10px;
  background-color: var(--color-coral);
  border: 2px solid var(--color-surface);
  border-radius: var(--radius-full);
}

/* Topbar Cart Button */
.topbar-cart-btn {
  position: relative;
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.topbar-cart-btn:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
}

.topbar-cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  min-width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  border: 2px solid var(--color-surface);
}

/* Topbar Loyalty Points Pill */
.topbar-loyalty-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #fef3c7 0%, #fef9c3 100%);
  border: 1px solid #fde047;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-size: 0.775rem;
  font-weight: 700;
  color: #854d0e;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.topbar-loyalty-pill:hover {
  background: linear-gradient(135deg, #fde047 0%, #fef08a 100%);
  border-color: #eab308;
  color: #713f12;
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(234, 179, 8, 0.25);
}

.loyalty-icon-badge {
  color: #b45309;
  display: flex;
  align-items: center;
}

.loyalty-points-val {
  font-weight: 800;
  color: #78350f;
}

.loyalty-points-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: #92400e;
}

/* Topbar B2B Clinic Balance & Credit Pill */
.topbar-balance-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  border: 1px solid #a7f3d0;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-size: 0.775rem;
  font-weight: 700;
  color: #065f46;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.topbar-balance-pill:hover {
  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
  border-color: #34d399;
  color: #064e3b;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

.balance-icon-badge {
  color: #059669;
  display: flex;
  align-items: center;
}

.balance-pill-content {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.balance-val {
  font-weight: 800;
  color: #047857;
  letter-spacing: -0.01em;
}

.credit-sub-badge {
  font-size: 0.675rem;
  font-weight: 700;
  background: rgba(16, 185, 129, 0.18);
  color: #065f46;
  padding: 1px 6px;
  border-radius: 999px;
  border: 1px solid rgba(5, 150, 105, 0.25);
}

.balance-topup-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #059669;
  color: #ffffff;
  font-size: 11px;
  font-weight: 900;
  line-height: 1;
  transition: transform var(--transition-fast);
}

.topbar-balance-pill:hover .balance-topup-btn {
  transform: scale(1.15);
  background: #047857;
}

@media (max-width: 768px) {
  .topbar-balance-pill .credit-sub-badge {
    display: none;
  }
}

/* Topbar User Menu & Dropdown */
.topbar-user-wrapper {
  position: relative;
}

.topbar-user-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 8px 4px 4px;
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.topbar-user-trigger:hover,
.topbar-user-wrapper.open .topbar-user-trigger {
  background-color: var(--color-primary-soft);
  border-color: var(--color-primary);
}

.topbar-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  display: flex;
  align-items: center;
  justify-content: center;
}

.topbar-user-meta {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.1;
  padding-right: 4px;
}

.topbar-user-name {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-user-role {
  font-size: 0.68rem;
  color: var(--color-text-muted);
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 270px;
  background: #ffffff !important;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 36px -4px rgba(0, 0, 0, 0.16), 0 4px 12px -2px rgba(0, 0, 0, 0.08);
  padding: var(--space-2) 0;
  display: none;
  z-index: 99999;
}

.topbar-user-wrapper.open .topbar-user-dropdown {
  display: block !important;
  animation: topbarDropdownFade 0.15s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes topbarDropdownFade {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.topbar-dropdown-header {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.topbar-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.topbar-dropdown-item:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

.topbar-dropdown-item.text-danger:hover {
  background-color: var(--color-danger-soft);
  color: var(--color-danger);
}

.topbar-dropdown-divider {
  height: 1px;
  background-color: var(--color-border-subtle);
  margin: var(--space-1) 0;
}

/* Content Area */
.app-content {
  flex: 1;
  padding: var(--space-6);
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--mobile-nav-height);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  z-index: var(--z-sticky);
  padding: 0 var(--space-2);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
}

.mobile-nav-items {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-around;
}

.mobile-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  padding: var(--space-1) var(--space-2);
  flex: 1;
  transition: color var(--transition-fast);
}

.mobile-nav-link.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

.mobile-fab-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-primary);
  margin-top: -20px;
  border: 3px solid var(--color-surface);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.mobile-fab-btn:active {
  transform: scale(0.92);
}

/* Drawer Backdrop for Mobile */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(24, 32, 31, 0.4);
  backdrop-filter: blur(2px);
  z-index: calc(var(--z-drawer) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.drawer-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

/* Responsive Shell Breakpoints */
@media (max-width: 1024px) {
  .app-sidebar {
    transform: translateX(-100%);
  }

  .app-sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }

  .app-main {
    margin-left: 0;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .mobile-bottom-nav {
    display: block;
  }

  .app-content {
    padding: var(--space-4);
    padding-bottom: calc(var(--mobile-nav-height) + var(--space-4));
  }
}