:root {
  --bg-shell: #090d16;
  --bg-topbar: rgba(15, 23, 42, 0.85);
  --border-shell: rgba(255, 255, 255, 0.08);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.3);
  --card-bg: rgba(30, 41, 59, 0.7);
  --card-hover: rgba(51, 65, 85, 0.8);
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --topbar-height: 56px;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono-family: 'JetBrains Mono', monospace;
}

[data-theme="light"] {
  --bg-shell: #f1f5f9;
  --bg-topbar: rgba(255, 255, 255, 0.88);
  --border-shell: rgba(0, 0, 0, 0.08);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-glow: rgba(37, 99, 235, 0.2);
  --card-bg: rgba(255, 255, 255, 0.95);
  --card-hover: #ffffff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body, html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-family);
  background-color: var(--bg-shell);
  color: var(--text-main);
  transition: background-color 0.2s, color 0.2s;
}

.shell-layout {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
}

/* Topbar */
.shell-topbar {
  height: var(--topbar-height);
  background: var(--bg-topbar);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-shell);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 100;
  user-select: none;
}

.topbar-left, .topbar-right, .topbar-center {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text-main);
  padding: 6px 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.topbar-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-shell);
}

.app-switcher-trigger {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.25);
  color: #60a5fa;
  font-weight: 600;
  font-size: 13px;
}

.app-switcher-trigger:hover {
  background: rgba(59, 130, 246, 0.22);
}

.icon-grid {
  width: 16px;
  height: 16px;
}

.icon {
  width: 18px;
  height: 18px;
}

/* Brand */
.brand-container {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 6px;
}

.brand-emblem {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-title {
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.06em;
}

.brand-subtitle {
  font-size: 10px;
  color: var(--text-muted);
}

/* Active App Pill */
.active-app-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-shell);
  border-radius: 9999px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

.active-mode-badge {
  font-size: 10px;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--text-muted);
}

/* Global Search */
.global-search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 280px;
}

.search-icon {
  position: absolute;
  left: 10px;
  width: 14px;
  height: 14px;
  color: var(--text-muted);
}

#globalSearchInput {
  width: 100%;
  padding: 6px 32px 6px 30px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-shell);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 12px;
  outline: none;
  transition: all 0.2s;
}

#globalSearchInput:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.search-kbd {
  position: absolute;
  right: 8px;
  font-size: 10px;
  font-family: var(--mono-family);
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 5px;
  border-radius: 4px;
  color: var(--text-muted);
  pointer-events: none;
}

/* Event Bus Indicator */
.event-bus-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 6px;
  font-size: 11px;
  color: #34d399;
}

.bus-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.7; }
}

/* Notification badge */
.notification-wrapper {
  position: relative;
}

.notification-counter {
  position: absolute;
  top: 2px;
  right: 4px;
  background: var(--danger);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 9999px;
}

/* Dropdown panels */
.dropdown-panel {
  position: absolute;
  top: calc(var(--topbar-height) + 6px);
  right: 0;
  background: var(--bg-topbar);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-shell);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  z-index: 200;
}

.notification-panel {
  width: 320px;
  padding: 14px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.panel-header h3 {
  font-size: 13px;
  font-weight: 600;
}

.text-btn {
  background: none;
  border: none;
  font-size: 11px;
  color: var(--accent);
  cursor: pointer;
}

.notification-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 280px;
  overflow-y: auto;
}

.notification-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  font-size: 12px;
  border-left: 3px solid var(--accent);
}

.empty-state {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  padding: 24px 0;
}

/* User Menu */
.user-menu-wrapper {
  position: relative;
}

.user-profile-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid transparent;
  padding: 4px 8px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-main);
}

.user-profile-btn:hover {
  background: rgba(255, 255, 255, 0.05);
}

.avatar-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-weight: 700;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-brief {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.u-name {
  font-size: 12px;
  font-weight: 600;
}

.u-role-tag {
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.chevron-down {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
}

.user-panel {
  width: 240px;
  padding: 12px;
}

.user-panel-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 8px;
}

.user-full-name {
  font-size: 13px;
  font-weight: 600;
}

.user-full-email {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--mono-family);
}

.user-roles-container {
  display: flex;
  gap: 4px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.role-badge {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
}

.role-badge.admin { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.role-badge.staff { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.role-badge.member { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }

.menu-divider {
  height: 1px;
  background: var(--border-shell);
  margin: 6px 0;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-main);
  text-decoration: none;
  background: none;
  border: none;
  width: 100%;
  cursor: pointer;
  text-align: left;
}

.menu-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.menu-item-danger {
  color: #f87171;
}

.menu-item-danger:hover {
  background: rgba(239, 68, 68, 0.1);
}

.menu-icon {
  width: 15px;
  height: 15px;
}

/* App Switcher Modal */
.switcher-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.switcher-modal {
  background: var(--bg-topbar);
  border: 1px solid var(--border-shell);
  border-radius: 16px;
  width: 100%;
  max-width: 680px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.switcher-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-shell);
}

.switcher-title-group h2 {
  font-size: 18px;
  font-weight: 700;
}

.switcher-title-group p {
  font-size: 12px;
  color: var(--text-muted);
}

.code-tag {
  font-family: var(--mono-family);
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 5px;
  border-radius: 4px;
}

.icon-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
}

.switcher-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 12px;
  border-bottom: 1px solid var(--border-shell);
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  padding: 20px 24px;
  max-height: 380px;
  overflow-y: auto;
}

.app-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border-shell);
  border-radius: 12px;
  padding: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.app-card:hover {
  background: var(--card-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.app-card.locked {
  opacity: 0.6;
  cursor: not-allowed;
  filter: grayscale(0.5);
}

.app-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-card-title {
  font-size: 14px;
  font-weight: 600;
}

.app-card-desc {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--mono-family);
}

.app-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  font-size: 10px;
}

.mode-tag {
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  font-weight: 600;
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
}

.required-roles-tag {
  color: var(--text-muted);
}

.switcher-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  border-top: 1px solid var(--border-shell);
  background: rgba(255, 255, 255, 0.02);
  font-size: 11px;
  color: var(--text-muted);
}

.registry-link {
  color: var(--accent);
  text-decoration: none;
}

/* Viewport Main */
.shell-viewport {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--bg-shell);
}

.managed-app-frame {
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
  display: block;
}

.iframe-loading {
  position: absolute;
  inset: 0;
  background: var(--bg-shell);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 50;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(59, 130, 246, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-text {
  font-size: 13px;
  color: var(--text-muted);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.hidden {
  display: none !important;
}