/* Settings Panel */
.settings-backdrop {
  position: fixed;
  inset: 0;
  z-index: 199;
  background: transparent;
}

.settings-panel {
  position: fixed;
  left: var(--portal-sidebar-width, 200px);
  bottom: 80px;
  width: 320px;
  height: 460px;
  background: var(--mdb-color-bg);
  border: 1px solid var(--mdb-color-border);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  z-index: 200;
  display: none;
  flex-direction: column;
  overflow: hidden;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-width: 220px;
}
.settings-panel.open { display: flex; }

.settings-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--mdb-color-border);
  flex-shrink: 0;
}
.settings-header-title {
  font-size: 13px;
  font-weight: 500;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--mdb-color-text);
  flex-shrink: 0;
}

.settings-content {
  flex: 1;
  padding: 12px 14px;
  overflow-y: auto;
}
.settings-content::-webkit-scrollbar { width: 6px; }
.settings-content::-webkit-scrollbar-track { background: transparent; }
.settings-content::-webkit-scrollbar-thumb { background: var(--mdb-color-border); border-radius: 3px; }
.settings-content::-webkit-scrollbar-thumb:hover { background: var(--mdb-color-text-muted); }

.setting-group {
  margin-bottom: 16px;
}
.setting-group label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--mdb-color-text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.setting-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 14px;
  color: var(--mdb-color-text);
}
.setting-toggle-row span {
  flex: 1;
}
.setting-toggle {
  position: relative;
  width: 36px;
  height: 20px;
  flex-shrink: 0;
}
.setting-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}
.setting-toggle-track {
  position: absolute;
  inset: 0;
  background: var(--mdb-color-bg-tertiary);
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s;
}
.setting-toggle input:checked + .setting-toggle-track {
  background: var(--mdb-color-primary, #4a90d9);
}
.setting-toggle-track::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 14px;
  height: 14px;
  background: white;
  border-radius: 50%;
  transition: transform 0.2s;
}
.setting-toggle input:checked + .setting-toggle-track::after {
  transform: translateX(16px);
}

.theme-toggle {
  display: flex;
  gap: 4px;
  background: var(--mdb-color-bg-tertiary);
  padding: 4px;
  border-radius: var(--mdb-radius-md);
}
.theme-toggle button {
  flex: 1;
  padding: 4px 10px;
  border: none;
  background: transparent;
  color: var(--mdb-color-text-secondary);
  border-radius: var(--mdb-radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s ease;
}
.theme-toggle button:hover {
  color: var(--mdb-color-text);
}
.theme-toggle button.active {
  background: var(--mdb-color-bg);
  color: var(--mdb-color-text);
  box-shadow: var(--mdb-shadow-sm);
}

/* Custom Themes List */
.custom-themes-section {
  margin-top: 0;
}
.custom-theme-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 12px;
  background: var(--mdb-color-bg-tertiary);
  border-radius: var(--mdb-radius-md);
  margin-bottom: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.1s;
}
.custom-theme-item:hover {
  background: var(--mdb-color-bg);
}
.custom-theme-item:hover .theme-actions {
  opacity: 1;
}
.custom-theme-item--active {
  border-color: var(--mdb-color-primary);
  background: var(--mdb-color-bg);
}
.custom-theme-item--active .theme-name {
  font-weight: 600;
  color: var(--mdb-color-primary);
}
.custom-theme-item .theme-name {
  font-size: 14px;
  color: var(--mdb-color-text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.custom-theme-item .theme-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.1s;
  flex-shrink: 0;
}
.custom-theme-item button {
  padding: 4px;
  background: none;
  border: none;
  color: var(--mdb-color-text-secondary);
  cursor: pointer;
  border-radius: var(--mdb-radius-sm);
}
.custom-theme-item button:hover {
  background: var(--mdb-color-bg-tertiary);
  color: var(--mdb-color-text);
}
.theme-group-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mdb-color-text-muted);
  padding: 8px 4px 4px;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.theme-group-label:first-child { padding-top: 0; }