/* ===========================================
   Config Page - Carbon Design System
   =========================================== */

/* Layout Container */
.config-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  height: calc(100vh - var(--shell-topbar-height, 52px));
  margin: -12px -14px -24px;
  border-radius: 0;
  border: none;
  border-top: 1px solid var(--border);
  background: var(--panel);
  overflow: hidden; /* fallback for older browsers */
  overflow: clip;
}

/* Mobile: adjust margins to match mobile .content padding (4px 4px 16px) */
@media (max-width: 600px) {
  .config-layout {
    margin: 0; /* safest: no negative margin cancellation on mobile */
  }
}

/* Small mobile: even smaller padding */
@media (max-width: 400px) {
  .config-layout {
    margin: 0;
  }
}

/* ===========================================
   Sidebar
   =========================================== */

.config-sidebar {
  display: flex;
  flex-direction: column;
  background: var(--bg-accent);
  border-right: 1px solid var(--border);
  min-height: 0;
  overflow: hidden;
}

.config-sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  min-height: 55px;
  border-bottom: 1px solid var(--border);
}

.config-sidebar__title {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.config-sidebar__header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.config-sidebar__collapse-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease;
}

.config-sidebar__collapse-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.config-sidebar__collapse-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.config-sidebar__version {
  padding: 8px 18px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.config-sidebar__version-text {
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  font-family: var(--mono);
  letter-spacing: 0.01em;
}

.config-sidebar__footer {
  margin-top: auto;
  padding: 14px;
  border-top: 1px solid var(--border);
}

/* Search */
.config-search {
  position: relative;
  padding: 14px;
  min-height: 70px;
  border-bottom: 1px solid var(--border);
}

.config-search__icon {
  position: absolute;
  left: 28px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--muted);
  pointer-events: none;
}

.config-search__input {
  width: 100%;
  padding: 11px 36px 11px 42px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  font-size: 14px;
  outline: none;
  transition:
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease,
    background var(--duration-fast) ease;
}

.config-search__input::placeholder {
  color: var(--muted);
}

.config-search__input:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
  background: var(--bg-hover);
}

.config-search__clear {
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--bg-hover);
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease;
}

.config-search__clear:hover {
  background: var(--border-strong);
  color: var(--text);
}

/* Navigation */
.config-nav {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
}

.config-nav__item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 11px 14px;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease;
}

.config-nav__item:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.config-nav__item.active {
  background: var(--accent-subtle);
  color: var(--accent);
}

.config-nav__icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  opacity: 0.7;
}

.config-nav__item:hover .config-nav__icon,
.config-nav__item.active .config-nav__icon {
  opacity: 1;
}

.config-nav__icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
}

.config-nav__label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Category groups */
.config-nav__category {
  margin-top: 4px;
}

.config-nav__category:first-of-type {
  margin-top: 2px;
}

.config-nav__category-header {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 6px 14px;
  border: none;
  background: color-mix(in srgb, var(--panel) 50%, transparent);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: left;
  cursor: pointer;
  user-select: none;
  transition:
    color var(--duration-fast) ease,
    background var(--duration-fast) ease;
}

.config-nav__category-header:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--panel) 75%, transparent);
}

.config-nav__category-chevron {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  transition: transform var(--duration-fast) ease;
}

.config-nav__category.collapsed .config-nav__category-chevron {
  transform: rotate(-90deg);
}

.config-nav__category.collapsed .config-nav__category-items {
  display: none;
}

/* Mode Toggle */
.config-mode-toggle {
  display: flex;
  padding: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.config-mode-toggle__btn {
  flex: 1;
  padding: 9px 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.config-mode-toggle__btn:hover {
  color: var(--text);
}

.config-mode-toggle__btn.active {
  background: var(--accent);
  color: var(--accent-foreground);
  box-shadow: var(--shadow-sm);
}

/* ===========================================
   Main Content
   =========================================== */

.config-main {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  background: var(--panel);
  overflow: hidden; /* fallback for older browsers */
  overflow: clip;
}

/* Actions Bar */
.config-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 22px;
  min-height: 55px;
  background: var(--bg-accent);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.config-actions__left,
.config-actions__right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.config-top-tabs {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 22px;
  background: var(--bg-accent);
  border-bottom: 1px solid var(--border);
  min-height: 56px;
}

.config-top-tabs__scroller {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  flex: 1;
  min-width: 0;
}

.config-top-tabs__scroller::-webkit-scrollbar {
  display: none;
}

.config-top-tabs__tab {
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 2px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition:
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease;
}

.config-top-tabs__tab:hover {
  color: var(--text);
}

.config-top-tabs__tab.active {
  color: var(--text-strong);
  border-bottom-color: var(--accent);
}

.config-top-tabs__right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.config-top-tabs__version {
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  font-family: var(--mono);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.config-search--top {
  padding: 0;
  min-height: 0;
  border-bottom: none;
  width: min(360px, 42vw);
  flex: 0 0 auto;
}

.config-search--top .config-search__icon {
  left: 14px;
}

.config-search--top .config-search__input {
  padding: 9px 34px 9px 38px;
  font-size: 12px;
  font-weight: 600;
  cursor: text;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.config-search--top .config-search__input:focus-visible {
  outline: none;
  border-color: var(--ring);
  box-shadow: var(--focus-ring);
}

.config-search--top .config-search__clear {
  right: 10px;
}

.config-changes-badge {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--accent-subtle);
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
}

.config-status {
  font-size: 13px;
  color: var(--muted);
}

/* Validity Warning */
.config-validity-warning {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 10px 22px;
  background: color-mix(in srgb, var(--warning, #f59e0b) 12%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--warning, #f59e0b) 30%, transparent);
  color: var(--warning, #f59e0b);
  font-size: 13px;
  font-weight: 500;
}

.config-validity-warning__icon {
  flex-shrink: 0;
}

.config-validity-warning__text {
  flex: 1;
}

/* Diff Panel */
.config-diff {
  margin: 18px 22px 0;
  border: 1px solid color-mix(in srgb, var(--danger) 25%, transparent);
  border-radius: var(--radius-lg);
  background: var(--accent-subtle);
  overflow: hidden;
}

.config-diff__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  list-style: none;
}

.config-diff__summary::-webkit-details-marker {
  display: none;
}

.config-diff__chevron {
  width: 16px;
  height: 16px;
  transition: transform var(--duration-normal) var(--ease-out);
}

.config-diff__chevron svg {
  width: 100%;
  height: 100%;
}

.config-diff[open] .config-diff__chevron {
  transform: rotate(180deg);
}

.config-diff__content {
  padding: 0 18px 18px;
  display: grid;
  gap: 10px;
}

.config-diff__item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  font-size: 12px;
  font-family: var(--mono);
}

.config-diff__path {
  font-weight: 600;
  color: var(--text);
  flex-shrink: 0;
}

.config-diff__values {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
  flex-wrap: wrap;
}

.config-diff__from {
  color: var(--danger);
  opacity: 0.85;
}

.config-diff__arrow {
  color: var(--muted);
}

.config-diff__to {
  color: var(--ok);
}

/* Section Hero */
.config-section-hero {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 22px;
  min-height: 70px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-accent);
}

.config-section-hero__icon {
  width: 30px;
  height: 30px;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.config-section-hero__icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
}

.config-section-hero__text {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.config-section-hero__title {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.config-section-hero__desc {
  font-size: 14px;
  color: var(--muted);
}

/* Subsection Nav */
.config-subnav {
  display: flex;
  gap: 8px;
  padding: 12px 22px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-accent);
  overflow-x: auto;
}

.config-subnav__item {
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  padding: 7px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg-elevated);
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease;
  white-space: nowrap;
}

.config-subnav__item:hover {
  color: var(--text);
  border-color: var(--border);
}

.config-subnav__item.active {
  color: var(--accent);
  border-color: rgba(255, 77, 77, 0.4);
  background: var(--accent-subtle);
}

/* Content Area */
.config-content {
  flex: 1;
  overflow-y: auto;
  padding: 22px;
  display: flex;
  flex-direction: column;
}

.config-raw-field {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.config-raw-field textarea {
  flex: 1;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
}

/* Loading State */
.config-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 80px 24px;
  color: var(--muted);
}

.config-loading__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: var(--radius-full);
  animation: spin 0.75s linear infinite;
}

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

/* Empty State */
.config-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 80px 24px;
  text-align: center;
}

.config-empty__icon {
  font-size: 56px;
  opacity: 0.35;
}

.config-empty__text {
  color: var(--muted);
  font-size: 15px;
}

/* ===========================================
   Section Cards
   =========================================== */

.config-form--modern {
  display: grid;
  gap: 26px;
}

.config-section-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  overflow: hidden;
  transition: border-color var(--duration-fast) ease;
}

.config-section-card:hover {
  border-color: var(--border-strong);
}

.config-section-card__header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 22px;
  background: var(--bg-accent);
  border-bottom: 1px solid var(--border);
}

.config-section-card__icon {
  width: 34px;
  height: 34px;
  color: var(--accent);
  flex-shrink: 0;
}

.config-section-card__icon svg {
  width: 100%;
  height: 100%;
}

.config-section-card__titles {
  flex: 1;
  min-width: 0;
}

.config-section-card__title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.config-section-card__desc {
  margin: 5px 0 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.45;
}

.config-section-card__content {
  padding: 22px;
}

/* ===========================================
   Form Fields
   =========================================== */

.cfg-fields {
  display: grid;
  gap: 22px;
}

.cfg-field {
  display: grid;
  gap: 8px;
}

.cfg-field--error {
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--danger-subtle);
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
}

.cfg-field__label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.cfg-field__help {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.45;
}

.cfg-field__error {
  font-size: 13px;
  color: var(--danger);
}

/* Text Input */
.cfg-input-wrap {
  display: flex;
  gap: 10px;
}

.cfg-input {
  flex: 1;
  padding: 11px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-accent);
  font-size: 14px;
  outline: none;
  transition:
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease,
    background var(--duration-fast) ease;
}

.cfg-input::placeholder {
  color: var(--muted);
  opacity: 0.7;
}

.cfg-input:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
  background: var(--bg-hover);
}

.cfg-input--sm {
  padding: 9px 12px;
  font-size: 13px;
}

.cfg-input__reset {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  color: var(--muted);
  font-size: 14px;
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease;
}

.cfg-input__reset:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text);
}

.cfg-input__reset:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Textarea */
.cfg-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-accent);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  resize: vertical;
  outline: none;
  transition:
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.cfg-textarea:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.cfg-textarea--sm {
  padding: 10px 12px;
  font-size: 12px;
}

/* Number Input */
.cfg-number {
  display: inline-flex;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-accent);
}

.cfg-number__btn {
  width: 44px;
  border: none;
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 18px;
  font-weight: 300;
  cursor: pointer;
  transition: background var(--duration-fast) ease;
}

.cfg-number__btn:hover:not(:disabled) {
  background: var(--bg-hover);
}

.cfg-number__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.cfg-number__input {
  width: 85px;
  padding: 11px;
  border: none;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  background: transparent;
  font-size: 14px;
  text-align: center;
  outline: none;
  -moz-appearance: textfield;
}

.cfg-number__input::-webkit-outer-spin-button,
.cfg-number__input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Select */
.cfg-select {
  padding: 11px 40px 11px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background-color: var(--bg-accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  font-size: 14px;
  cursor: pointer;
  outline: none;
  appearance: none;
  transition:
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.cfg-select:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

/* Segmented Control */
.cfg-segmented {
  display: inline-flex;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-accent);
}

.cfg-segmented__btn {
  padding: 9px 18px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.cfg-segmented__btn:hover:not(:disabled):not(.active) {
  color: var(--text);
}

.cfg-segmented__btn.active {
  background: var(--accent);
  color: var(--accent-foreground);
  box-shadow: var(--shadow-sm);
}

.cfg-segmented__btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Toggle Row */
.cfg-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-accent);
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    border-color var(--duration-fast) ease;
}

.cfg-toggle-row:hover:not(.disabled) {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

.cfg-toggle-row.disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.cfg-toggle-row__content {
  flex: 1;
  min-width: 0;
}

.cfg-toggle-row__label {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}

.cfg-toggle-row__help {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.45;
}

/* Toggle Switch */
.cfg-toggle {
  position: relative;
  flex-shrink: 0;
}

.cfg-toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.cfg-toggle__track {
  display: block;
  width: 50px;
  height: 28px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  position: relative;
  transition:
    background var(--duration-normal) ease,
    border-color var(--duration-normal) ease;
}

.cfg-toggle__track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: var(--text);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--duration-normal) var(--ease-out),
    background var(--duration-normal) ease;
}

.cfg-toggle input:checked + .cfg-toggle__track {
  background: var(--ok-subtle);
  border-color: color-mix(in srgb, var(--ok) 40%, transparent);
}

.cfg-toggle input:checked + .cfg-toggle__track::after {
  transform: translateX(22px);
  background: var(--ok);
}

.cfg-toggle input:focus + .cfg-toggle__track {
  box-shadow: var(--focus-ring);
}

/* Object (collapsible) */
.cfg-object {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-accent);
  overflow: hidden;
}

.cfg-object__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  transition: background var(--duration-fast) ease;
}

.cfg-object__header:hover {
  background: var(--bg-hover);
}

.cfg-object__header::-webkit-details-marker {
  display: none;
}

.cfg-object__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.cfg-object__chevron {
  width: 18px;
  height: 18px;
  color: var(--muted);
  transition: transform var(--duration-normal) var(--ease-out);
}

.cfg-object__chevron svg {
  width: 100%;
  height: 100%;
}

.cfg-object[open] .cfg-object__chevron {
  transform: rotate(180deg);
}

.cfg-object__help {
  padding: 0 18px 14px;
  font-size: 12px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}

.cfg-object__content {
  padding: 18px;
  display: grid;
  gap: 18px;
}

/* Array */
.cfg-array {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cfg-array__header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--bg-accent);
  border-bottom: 1px solid var(--border);
}

.cfg-array__label {
  flex: 1;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.cfg-array__count {
  font-size: 12px;
  color: var(--muted);
  padding: 4px 10px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
}

.cfg-array__add {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--duration-fast) ease;
}

.cfg-array__add:hover:not(:disabled) {
  background: var(--bg-hover);
}

.cfg-array__add:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.cfg-array__add-icon {
  width: 14px;
  height: 14px;
}

.cfg-array__add-icon svg {
  width: 100%;
  height: 100%;
}

.cfg-array__help {
  padding: 12px 18px;
  font-size: 12px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}

.cfg-array__empty {
  padding: 36px 18px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.cfg-array__items {
  display: grid;
  gap: 1px;
  background: var(--border);
}

.cfg-array__item {
  background: var(--panel);
}

.cfg-array__item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: var(--bg-accent);
  border-bottom: 1px solid var(--border);
}

.cfg-array__item-index {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cfg-array__item-remove {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease;
}

.cfg-array__item-remove svg {
  width: 16px;
  height: 16px;
}

.cfg-array__item-remove:hover:not(:disabled) {
  background: var(--danger-subtle);
  color: var(--danger);
}

.cfg-array__item-remove:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.cfg-array__item-content {
  padding: 18px;
}

/* Map (custom entries) */
.cfg-map {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cfg-map__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 18px;
  background: var(--bg-accent);
  border-bottom: 1px solid var(--border);
}

.cfg-map__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.cfg-map__add {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--duration-fast) ease;
}

.cfg-map__add:hover:not(:disabled) {
  background: var(--bg-hover);
}

.cfg-map__add-icon {
  width: 14px;
  height: 14px;
}

.cfg-map__add-icon svg {
  width: 100%;
  height: 100%;
}

.cfg-map__empty {
  padding: 28px 18px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.cfg-map__items {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.cfg-map__item {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  gap: 10px;
  align-items: start;
}

.cfg-map__item-key {
  min-width: 0;
}

.cfg-map__item-value {
  min-width: 0;
}

.cfg-map__item-remove {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease;
}

.cfg-map__item-remove svg {
  width: 16px;
  height: 16px;
}

.cfg-map__item-remove:hover:not(:disabled) {
  background: var(--danger-subtle);
  color: var(--danger);
}

/* Pill variants */
.pill--sm {
  padding: 5px 12px;
  font-size: 11px;
}

.pill--ok {
  border-color: color-mix(in srgb, var(--ok) 35%, transparent);
  color: var(--ok);
}

.pill--danger {
  border-color: rgba(239, 68, 68, 0.35);
  color: var(--danger);
}

/* ===========================================
   Collapsed Sidebar
   =========================================== */

.config-layout--sidebar-collapsed {
  grid-template-columns: 48px minmax(0, 1fr);
}

.config-layout--sidebar-collapsed .config-sidebar__title,
.config-layout--sidebar-collapsed .config-sidebar__header-right .pill,
.config-layout--sidebar-collapsed .config-search,
.config-layout--sidebar-collapsed .config-nav__label,
.config-layout--sidebar-collapsed .config-nav__category-header,
.config-layout--sidebar-collapsed .config-sidebar__footer {
  display: none;
}

.config-layout--sidebar-collapsed .config-sidebar__version {
  padding: 6px 4px;
}

.config-layout--sidebar-collapsed .config-sidebar__version-text {
  font-size: 10px;
}

.config-layout--sidebar-collapsed .config-sidebar__header {
  justify-content: center;
  padding: 10px 4px;
}

.config-layout--sidebar-collapsed .config-sidebar__header-right {
  gap: 0;
}

.config-layout--sidebar-collapsed .config-nav {
  padding: 4px;
  align-items: center;
}

.config-layout--sidebar-collapsed .config-nav__item {
  justify-content: center;
  padding: 8px;
  gap: 0;
  border-bottom: 1px solid var(--border);
}

.config-layout--sidebar-collapsed .config-nav__item:last-child {
  border-bottom: none;
}

.config-layout--sidebar-collapsed .config-nav__icon {
  width: 20px;
  height: 20px;
}

.config-layout {
  transition: grid-template-columns var(--duration-normal) var(--ease-out);
}

.config-sidebar {
  transition: width var(--duration-normal) var(--ease-out);
}

/* Mobile back button (hidden on desktop) */
.config-mobile-back {
  display: none;
}

/* ===========================================
   Mobile Responsiveness
   =========================================== */

@media (max-width: 768px) {
  .config-layout {
    grid-template-columns: 1fr;
  }

  .config-top-tabs {
    flex-wrap: wrap;
    padding: 10px 16px;
    gap: 10px;
    min-height: auto;
  }

  .config-search--top {
    width: 100%;
  }

  .config-actions {
    flex-wrap: wrap;
    padding: 14px 16px;
  }

  .config-actions__left,
  .config-actions__right {
    width: 100%;
    justify-content: center;
  }

  .config-section-hero {
    padding: 14px 16px;
  }

  .config-subnav {
    padding: 10px 16px 12px;
  }

  .config-content {
    padding: 18px;
  }

  .config-section-card__header {
    padding: 16px 18px;
  }

  .config-section-card__content {
    padding: 18px;
  }

  .cfg-toggle-row {
    padding: 14px 16px;
  }

  .cfg-map__item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .cfg-map__item-remove {
    justify-self: end;
  }
}

@media (max-width: 480px) {
  .config-nav__icon {
    width: 26px;
    height: 26px;
    font-size: 17px;
  }

  .config-nav__label {
    display: none;
  }

  .config-section-card__icon {
    width: 30px;
    height: 30px;
  }

  .config-section-card__title {
    font-size: 16px;
  }

  .cfg-segmented {
    flex-wrap: wrap;
  }

  .cfg-segmented__btn {
    flex: 1 0 auto;
    min-width: 70px;
  }
}

/* ===========================================
   Environment Values Blur + Peek Toggle
   =========================================== */

.config-env-values--blurred .cfg-input,
.config-env-values--blurred .cfg-number__input,
.config-env-values--blurred textarea {
  color: transparent;
  text-shadow: 0 0 8px var(--text);
}

.config-env-values--blurred .cfg-input::placeholder,
.config-env-values--blurred textarea::placeholder {
  text-shadow: none;
  color: var(--muted);
  opacity: 0.7;
}

.config-env-values--blurred .cfg-input:focus,
.config-env-values--blurred .cfg-number__input:focus,
.config-env-values--blurred textarea:focus {
  color: transparent;
  text-shadow: 0 0 8px var(--text);
}

.config-env-values--visible.config-env-values--blurred .cfg-input,
.config-env-values--visible.config-env-values--blurred .cfg-number__input,
.config-env-values--visible.config-env-values--blurred textarea {
  color: var(--text);
  text-shadow: none;
}

.config-env-values--visible.config-env-values--blurred .cfg-input:focus,
.config-env-values--visible.config-env-values--blurred .cfg-number__input:focus,
.config-env-values--visible.config-env-values--blurred textarea:focus {
  color: var(--text);
  text-shadow: none;
}

.config-env-peek-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-fast) ease;
  flex-shrink: 0;
  margin-left: auto;
}

.config-env-peek-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--bg-hover);
}

.config-env-peek-btn--active {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.config-env-peek-btn svg {
  flex-shrink: 0;
}

/* Raw JSON redaction blur */

.config-raw-redacted {
  color: transparent !important;
  text-shadow: 0 0 8px var(--text);
  transition:
    color var(--duration-normal, 250ms) ease,
    text-shadow var(--duration-normal, 250ms) ease;
}

/* ============================
   Appearance / Settings section
   ============================ */

.settings-appearance {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding: 8px 0;
}

.settings-appearance__section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.settings-appearance__heading {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin: 0;
  letter-spacing: 0.01em;
}

.settings-appearance__hint {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
  line-height: 1.4;
}

/* Theme card grid */

.settings-theme-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.settings-theme-card {
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  min-height: 44px;
  border-radius: var(--radius-md, 10px);
  border: 1px solid var(--border);
  background: var(--panel);
  cursor: pointer;
  transition:
    border-color var(--duration-fast, 120ms) ease,
    box-shadow var(--duration-fast, 120ms) ease,
    transform var(--duration-fast, 120ms) ease;
}

.settings-theme-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.settings-theme-card--active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--panel));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent);
}

.settings-theme-card__icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  flex: 0 0 auto;
}

.settings-theme-card__icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7px;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.settings-theme-card--active .settings-theme-card__icon {
  color: var(--accent);
}

.settings-theme-card__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-theme-card__desc {
  display: none;
}

.settings-theme-card__check {
  margin-left: auto;
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex: 0 0 auto;
}

.settings-theme-card__check svg {
  width: 16px;
  height: 16px;
}

.settings-theme-card:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

@media (max-width: 900px) {
  .settings-theme-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .settings-theme-grid {
    grid-template-columns: 1fr;
  }
}

/* Connection info grid */

.settings-info-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md, 8px);
  overflow: hidden;
}

.settings-info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
}

.settings-info-row:last-child {
  border-bottom: none;
}

.settings-info-row__label {
  color: var(--muted);
  font-weight: 500;
}

.settings-info-row__value {
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.settings-info-row__value.mono {
  font-family: var(--font-mono, monospace);
  font-size: 12px;
}

.settings-status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
}

.settings-status-dot--ok {
  background: var(--green, #22c55e);
  box-shadow: 0 0 6px color-mix(in srgb, var(--green, #22c55e) 50%, transparent);
}