/* === Model Combobox Component === */

.model-combobox {
  position: relative;
  width: 100%;
}

.model-combobox-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.model-combobox-trigger:hover:not(:disabled) {
  border-color: var(--text-dim);
}

.model-combobox-trigger:focus {
  border-color: var(--todo);
  box-shadow: var(--focus-ring);
}

.model-combobox-trigger:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.model-combobox-trigger-text {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: left;
}

.model-combobox-trigger-icon {
  display: inline-flex;
  margin-right: var(--space-sm);
  flex-shrink: 0;
}

.model-combobox-trigger-arrow {
  font-size: 10px;
  color: var(--text-muted);
  margin-left: 8px;
  transition: transform 0.15s;
}

.model-combobox-trigger[aria-expanded="true"] .model-combobox-trigger-arrow {
  transform: rotate(180deg);
}

.model-combobox-dropdown {
  position: fixed;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  /* Must sit above floating dashboard panels and the shared floating-window stack (10100+). */
  z-index: 11000;
  max-height: 320px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.model-combobox-search-wrapper {
  position: relative;
  flex-shrink: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.model-combobox-search {
  width: 100%;
  padding: 10px 36px 10px 12px;
  background: var(--bg);
  border: none;
  border-radius: var(--radius) var(--radius) 0 0;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
}

.model-combobox-search::placeholder {
  color: var(--text-dim);
}

.model-combobox-search:focus {
  background: var(--card);
}

.model-combobox-clear {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
  transition: color var(--transition-fast);
}

.model-combobox-clear:hover {
  color: var(--text);
}

.model-combobox-results-count {
  flex-shrink: 0;
  padding: 6px 12px;
  font-size: calc(var(--space-sm) + var(--space-xs) * 0.75);
  color: var(--text-muted);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.model-combobox-thinking {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
  padding: var(--space-sm) var(--space-md);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.model-combobox-thinking-label {
  flex: 1;
  min-width: 0;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.model-combobox-thinking-select {
  flex: 1;
  min-width: 0;
}

/*
FNXC:Settings-ThinkingLevel 2026-07-10-00:00:
The inline Thinking Level <select> had no CSS and rendered as the OS-default white control on the dark model dropdown across all model-picker surfaces, including the quick-add QuickEntryBox executor submenu and InlineCreateCard ModelSelectionModal. Mirror the canonical dark select tokens so reasoning-effort selection matches the surrounding combobox everywhere.

FNXC:Settings-ThinkingLevel 2026-07-10-00:00:
The Thinking Level <select> renders inside the createPortal dropdown (.model-combobox-dropdown), not under the trigger wrapper (.model-combobox). Scope the select rules to the portal container so Android/mobile and desktop model pickers receive the dark-theme tokens wherever CustomModelDropdown is used.
*/
.model-combobox-dropdown .thinking-level-select {
  width: 100%;
  padding: var(--space-xs) calc(var(--space-lg) + var(--space-md)) var(--space-xs) var(--space-sm);
  background: var(--surface);
  border: var(--btn-border-width) solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: var(--font-size-sm);
  font-family: var(--font-primary);
  line-height: 1.4;
  outline: none;
  cursor: pointer;
  appearance: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.model-combobox-dropdown .thinking-level-select:hover:not(:focus):not(:disabled) {
  border-color: var(--text-dim);
}

.model-combobox-dropdown .thinking-level-select:focus {
  border-color: var(--todo);
  box-shadow: var(--focus-ring);
}

.model-combobox-dropdown .thinking-level-select:disabled {
  opacity: var(--opacity-disabled, 0.6);
  cursor: not-allowed;
}

.model-combobox-dropdown .thinking-level-select option {
  background: var(--surface);
  color: var(--text);
  padding: var(--space-xs) var(--space-sm);
}

.model-combobox-dropdown .thinking-level-select optgroup {
  background: var(--surface);
  color: var(--text-muted);
  font-weight: 600;
}

.model-combobox-thinking::after {
  content: "";
  position: absolute;
  right: calc(var(--space-md) + var(--space-sm));
  width: var(--space-xs);
  height: var(--space-xs);
  border: solid var(--text-muted);
  border-width: 0 var(--btn-border-width) var(--btn-border-width) 0;
  pointer-events: none;
  transform: rotate(45deg) translateY(calc(var(--space-xs) * -1));
}

.model-combobox-thinking-badge {
  flex-shrink: 0;
  margin-left: var(--space-sm);
  max-width: 45%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/*
FNXC:ModelDropdown 2026-07-09-00:00:
FN-7760 requires the portaled model list to remain the touch-scroll owner on mobile. The global mobile lockdown keeps body/root overflow hidden and defaults touch gestures to vertical panning, so this fixed-position scroller needs its own iOS momentum scrolling, contained overscroll, and explicit vertical pan contract.

FNXC:ModelDropdown 2026-07-15-00:00:
FN-8212 refines FN-8193 by removing the scroller's top padding. A sticky provider header anchors at the list top, so top padding exposed scrolling model rows in a seam between the fixed header stack and that header. Bottom token spacing preserves the list's trailing rhythm.
*/
.model-combobox-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  touch-action: pan-y;
  padding: 0 0 var(--space-xs);
}

.model-combobox-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  transition: background 0.1s;
  overflow: hidden;
}

.model-combobox-option:hover,
.model-combobox-option--highlighted {
  background: var(--card-hover);
}

.model-combobox-option--selected {
  background: color-mix(in srgb, var(--todo) 15%, transparent);
}

.model-combobox-option--selected:hover,
.model-combobox-option--selected.model-combobox-option--highlighted {
  background: color-mix(in srgb, var(--todo) 25%, transparent);
}

.model-combobox-option-main {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 0;
  flex: 1;
}

.model-combobox-option-icon {
  display: inline-flex;
  flex-shrink: 0;
}

.model-combobox-option-text {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  color: var(--text);
}

.model-combobox-option-text--default {
  color: var(--text-muted);
  font-style: italic;
}

.model-combobox-option-id {
  font-size: 11px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  margin-left: 8px;
  flex-shrink: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 40%;
}

.model-combobox-group {
  border-bottom: 1px solid var(--border);
}

.model-combobox-group:last-child {
  border-bottom: none;
}

/*
FNXC:ModelDropdown 2026-07-15-00:00:
Provider headers must remain visible while their long model groups scroll in the shared list. Sticky positioning is scoped to the list scroller, so it cannot overlap the search, result-count, or thinking controls above it.
*/
.model-combobox-optgroup {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: var(--bg);
  cursor: default;
  overflow: hidden;
}

.model-combobox-optgroup-text {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Provider favorite star (in optgroup header) */
.model-combobox-optgroup-favorite {
  padding: 2px 4px;
  font-size: 14px;
  color: var(--star-idle);
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
  flex-shrink: 0;
}
.model-combobox-optgroup-favorite:hover {
  color: var(--star-active);
}
.model-combobox-optgroup-favorite--active {
  color: var(--star-active);
}

.model-combobox-optgroup-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs);
  color: var(--text-muted);
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
  line-height: 1;
  flex-shrink: 0;
  transition: color var(--transition-fast), transform var(--transition-fast), background var(--transition-fast);
  transform: rotate(-90deg);
}

.model-combobox-optgroup-toggle:hover,
.model-combobox-optgroup-toggle:focus-visible {
  color: var(--text);
  background: var(--card-hover);
  outline: none;
}

.model-combobox-optgroup-toggle--expanded {
  transform: rotate(0);
}

/* Model favorite star (inside option row) */
.model-combobox-option-favorite {
  padding: 2px 4px;
  font-size: 12px;
  color: var(--star-idle);
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
  margin-left: auto;
  flex-shrink: 0;
}
.model-combobox-option-favorite:hover {
  color: var(--star-active);
}
.model-combobox-option-favorite--active {
  color: var(--star-active);
}

/* Favorited model pinned row */
.model-combobox-option--favorite {
  padding-left: 12px;
  background: var(--bg-secondary);
}

.model-combobox-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.model-combobox-no-results {
  padding: 16px 12px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  font-style: italic;
}

/* Mobile responsive model dropdown */
@media (max-width: 768px) {
  .model-combobox-dropdown {
    max-height: 50vh;
    max-height: 50dvh; /* Use dynamic viewport height where supported */
    width: min(360px, calc(100vw - 32px));
  }

  .model-combobox-search {
    font-size: 16px;
  }

  .model-combobox-option,
  .model-combobox-optgroup-toggle {
    min-height: calc(var(--space-lg) * 2 + var(--space-xs));
  }
}

@media (max-width: 640px) {
  .model-combobox-dropdown {
    max-height: 50vh;
    max-height: 50dvh;
    width: min(360px, calc(100vw - 32px));
  }
}