/* ==========================================================================
   Filter Bar — Unified search/filter bar component
   Uses design tokens from field-guide.css
   BEM naming: .filter-bar__*
   ========================================================================== */

/* --------------------------------------------------------------------------
   Main container
   -------------------------------------------------------------------------- */
.filter-bar {
  position: relative;
}

/* The visible input area: chips + text input combined */
.filter-bar__input {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  min-height: 42px;
  padding: 4px 8px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--white);
  cursor: text;
  transition: border-color 0.1s;
}

.filter-bar__input:focus-within {
  border-color: var(--blue);
  outline: 2px solid var(--blue);
  outline-offset: -1px;
}

/* The raw text input inside the chip+input area */
.filter-bar__text-input {
  flex: 1;
  min-width: 120px;
  background: transparent;
  border: none;
  outline: none;
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  font-size: 13px;
  color: var(--gray-900);
  padding: 2px 4px;
  line-height: 1.55;
}

.filter-bar__text-input::placeholder {
  color: var(--gray-400);
}

/* --------------------------------------------------------------------------
   Chips
   -------------------------------------------------------------------------- */
.filter-bar__chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 6px 3px 10px;
  border-radius: 14px;
  color: var(--on-accent);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  line-height: 1.4;
  user-select: none;
  white-space: nowrap;
  transition: opacity 0.1s;
}

.filter-bar__chip:hover {
  opacity: 0.9;
}

/* Category color variants */
.filter-bar__chip--properties {
  background: var(--red);
}

.filter-bar__chip--stats {
  background: var(--accent-alt);
}

.filter-bar__chip--collection {
  background: var(--blue);
}

.filter-bar__chip--raw {
  background: var(--gray-500);
}

/* Editing state */
.filter-bar__chip--editing {
  background: var(--gray-100);
  color: var(--gray-900);
  border: 1px solid var(--blue);
}

.filter-bar__chip-label {
  white-space: nowrap;
}

/* Small dismiss/remove button inside chip */
.filter-bar__chip-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: 3px;
  padding: 2px 3px;
  font-size: 11px;
  color: inherit;
  cursor: pointer;
  line-height: 1;
  opacity: 0.6;
  transition: opacity 0.1s;
}

.filter-bar__chip-btn:hover {
  opacity: 1;
}

.filter-bar__chip--editing .filter-bar__chip-btn {
  background: rgba(0, 0, 0, 0.08);
}

/* Pencil glyph shown at the start of the inline chip text-edit row */
.filter-bar__chip-edit-icon {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  opacity: 0.6;
}

/* --------------------------------------------------------------------------
   Scryfall syntax recognition / inline underline feedback
   -------------------------------------------------------------------------- */
.filter-bar__underline--valid {
  border-bottom: 2px solid var(--blue);
}

.filter-bar__underline--invalid {
  border-bottom: 2px solid var(--red);
}

/* Transparent input used when editing a chip inline */
.filter-bar__edit-input {
  background: transparent;
  border: none;
  outline: none;
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  font-size: 12px;
  color: inherit;
  min-width: 60px;
  width: auto;
}

/* --------------------------------------------------------------------------
   Dropdown panel
   -------------------------------------------------------------------------- */
.filter-bar__panel {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.10);
  z-index: 50;
  padding: 20px;
}

.filter-bar__panel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.filter-bar__panel-column {
  display: flex;
  flex-direction: column;
}

.filter-bar__panel-category {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 10px;
}

.filter-bar__panel-category--properties {
  color: var(--red);
}

.filter-bar__panel-category--stats {
  color: var(--accent-alt);
}

.filter-bar__panel-category--collection {
  color: var(--blue);
}

/* Individual filter items in the panel */
.filter-bar__panel-item {
  display: flex;
  align-items: center;
  width: 100%;
  text-align: left;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  font-family: var(--font);
  font-size: 13px;
  color: var(--gray-700);
  cursor: pointer;
  gap: 0;
  transition: background 0.1s;
}

.filter-bar__panel-item:hover {
  background: var(--gray-100);
}

.filter-bar__panel-item:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}

.filter-bar__panel-icon {
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  margin-right: 8px;
  color: var(--gray-400);
}

.filter-bar__panel-name {
  flex: 1;
}

.filter-bar__panel-shortcode {
  margin-left: auto;
  padding-left: 8px;
  color: var(--gray-400);
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  font-size: 11px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Popovers (per-filter edit overlay)
   -------------------------------------------------------------------------- */
.filter-bar__popover-container {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 50;
}

.filter-bar__popover {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.10);
  max-width: 320px;
  min-width: 240px;
}

.filter-bar__popover-title {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 12px;
}

.filter-bar__popover-title--properties {
  color: var(--red);
}

.filter-bar__popover-title--stats {
  color: var(--accent-alt);
}

.filter-bar__popover-title--collection {
  color: var(--blue);
}

.filter-bar__popover-label {
  display: block;
  color: var(--gray-500);
  font-size: 12px;
  margin-bottom: 6px;
}

.filter-bar__popover-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 14px;
  gap: 8px;
}

.filter-bar__popover-apply {
  display: inline-flex;
  align-items: center;
  background: var(--blue);
  color: var(--on-accent);
  border: none;
  border-radius: var(--radius);
  padding: 6px 20px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.1s;
}

.filter-bar__popover-apply:hover {
  background: var(--blue-dark);
}

/* --------------------------------------------------------------------------
   Sortable Table Headers
   -------------------------------------------------------------------------- */

.sortable-header {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: color 0.1s;
}

.sortable-header:hover {
  color: var(--blue);
}

.filter-bar__popover-apply:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Color filter
   -------------------------------------------------------------------------- */
.filter-bar__color-buttons {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.filter-bar__color-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 2px solid transparent;
  font-weight: bold;
  font-size: 13px;
  cursor: pointer;
  opacity: 0.4;
  transition: opacity 0.1s, outline 0.1s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.filter-bar__color-btn:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.filter-bar__color-btn--active {
  opacity: 1;
  outline: 2px solid var(--blue);
  outline-offset: 1px;
}

/* Individual MTG color buttons */
.filter-bar__color-btn--w {
  background: #f8e7b9;
  color: #7a6010;
}

.filter-bar__color-btn--u {
  background: #a8d8ea;
  color: #1a4a6e;
}

.filter-bar__color-btn--b {
  background: #333;
  color: #ccc;
}

.filter-bar__color-btn--r {
  background: var(--red);
  color: white;
}

.filter-bar__color-btn--g {
  background: #2ecc71;
  color: white;
}

.filter-bar__color-btn--c {
  background: #888;
  color: white;
}

.filter-bar__color-btn--m {
  background: #d4af37;
  color: white;
}

/* Color match mode selector (exactly/including/at most) */
.filter-bar__mode-buttons {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.filter-bar__mode-btn {
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-200);
  background: var(--gray-100);
  font-family: var(--font);
  font-size: 12px;
  color: var(--gray-600);
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
}

.filter-bar__mode-btn:hover {
  background: var(--gray-200);
}

.filter-bar__mode-btn:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.filter-bar__mode-btn--active {
  background: var(--blue);
  color: var(--on-accent);
  border-color: var(--blue);
}

.filter-bar__mode-btn--active:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
}

/* --------------------------------------------------------------------------
   Range inputs (CMC, power/toughness, etc.)
   -------------------------------------------------------------------------- */
.filter-bar__range-inputs {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}

.filter-bar__range-field {
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Shared base for the three filter-bar text-style inputs (range, select
   search, free-text popover) — they only differ in padding/font-size/margin
   (issue #258). */
:is(.filter-bar__range-input, .filter-bar__select-search, .filter-bar__text-popover-input) {
  display: block;
  width: 100%;
  font-family: var(--font);
  color: var(--gray-900);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: border-color 0.1s;
  line-height: 1.55;
}

:is(.filter-bar__range-input, .filter-bar__text-popover-input) {
  padding: 0.45rem 0.75rem;
  font-size: 14px;
}

:is(.filter-bar__range-input, .filter-bar__select-search, .filter-bar__text-popover-input):focus {
  outline: 2px solid var(--blue);
  outline-offset: -1px;
  border-color: var(--blue);
}

:is(.filter-bar__range-input, .filter-bar__select-search, .filter-bar__text-popover-input)::placeholder {
  color: var(--gray-400);
}

/* --------------------------------------------------------------------------
   Select popover (set, format, rarity, type, etc.)
   -------------------------------------------------------------------------- */
.filter-bar__select-search {
  padding: 0.4rem 0.75rem;
  font-size: 13px;
  margin-bottom: 8px;
  line-height: normal;
}

.filter-bar__select-list {
  max-height: 200px;
  overflow-y: auto;
  margin: 0;
  padding: 0;
  list-style: none;
}

.filter-bar__select-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  cursor: pointer;
  font-size: 13px;
  color: var(--gray-700);
  transition: color 0.1s;
}

.filter-bar__select-option:hover {
  color: var(--gray-900);
}

.filter-bar__select-option input[type="checkbox"] {
  accent-color: var(--blue);
  cursor: pointer;
}

/* is / is-not mode selector (location popover only) — same look as the
   color match mode / format status selectors (.filter-bar__mode-btn above). */
.filter-bar__mode-toggle {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin: 0 0 10px;
}

.filter-bar__mode-option {
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-200);
  background: var(--gray-100);
  font-family: var(--font);
  font-size: 12px;
  color: var(--gray-600);
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
}

.filter-bar__mode-option:hover {
  background: var(--gray-200);
}

.filter-bar__mode-option:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.filter-bar__mode-option--active {
  background: var(--blue);
  color: var(--on-accent);
  border-color: var(--blue);
}

.filter-bar__mode-option--active:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
}

/* --------------------------------------------------------------------------
   Suggestion feedback (shown below input)
   -------------------------------------------------------------------------- */
.filter-bar__suggestion {
  font-size: 12px;
  margin-top: 4px;
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
}

.filter-bar__suggestion--valid {
  color: var(--green-text);
}

.filter-bar__suggestion--invalid {
  color: var(--red);
}

/* --------------------------------------------------------------------------
   Utility: screen-reader only
   (also defined in field-guide.css, which every page loads; duplicated here
   so pages that load filter-bar.css without this file's markup depending on
   field-guide's load order still get it — issue #248.)
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* --------------------------------------------------------------------------
   Responsive: single-column panel + full-width popovers on mobile
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  .filter-bar__panel-grid {
    grid-template-columns: 1fr;
  }

  .filter-bar__popover-container {
    left: 0;
    right: 0;
  }

  .filter-bar__popover {
    max-width: 100%;
  }
}

/* --------------------------------------------------------------------------
   Touch targets: invisible ::after hit-area expansion on coarse pointers,
   so the chip dismiss glyph stays visually compact (issue #244).
   -------------------------------------------------------------------------- */
@media (pointer: coarse) {
  .filter-bar__chip-btn::after {
    content: "";
    position: absolute;
    inset: -14px;
  }
}