/**
 * MatrixSelect default theme. Everything is driven by CSS custom
 * properties (--ms-*) so consuming sites can override without touching
 * this file — see README "Theming".
 *
 * RTL: the panel position and option text alignment use CSS logical
 * properties (inset-inline-end, text-align: start), which mirror
 * automatically whenever an ancestor has dir="rtl". No JS branching.
 */
.matrix-select {
  --ms-font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --ms-fg: #1a2333;
  --ms-fg-muted: #6b7280;
  --ms-bg: #ffffff;
  --ms-bg-hover: #eef2ff;
  --ms-border: #d8dce3;
  --ms-border-strong: #b9c0cc;
  --ms-accent: #4338ca;
  --ms-accent-bg: #eef0fd;
  --ms-radius: 8px;
  --ms-shadow: 0 10px 30px -8px rgba(20, 24, 38, 0.25);
  --ms-panel-width: 19rem;
  --ms-panel-max-height: 20rem;

  position: relative;
  display: inline-block;
  font-family: var(--ms-font);
}

@media (prefers-color-scheme: dark) {
  .matrix-select {
    --ms-fg: #e7e9ee;
    --ms-fg-muted: #9aa1b0;
    --ms-bg: #1b2030;
    --ms-bg-hover: #2a3050;
    --ms-border: #333a4d;
    --ms-border-strong: #444d63;
    --ms-accent: #8b93ff;
    --ms-accent-bg: #262c4a;
    --ms-shadow: 0 10px 30px -8px rgba(0, 0, 0, 0.55);
  }
}
/* explicit override hook for apps with a manual light/dark toggle that
   stamps data-theme on a root element instead of relying on the OS setting */
:root[data-theme="dark"] .matrix-select {
  --ms-fg: #e7e9ee;
  --ms-fg-muted: #9aa1b0;
  --ms-bg: #1b2030;
  --ms-bg-hover: #2a3050;
  --ms-border: #333a4d;
  --ms-border-strong: #444d63;
  --ms-accent: #8b93ff;
  --ms-accent-bg: #262c4a;
  --ms-shadow: 0 10px 30px -8px rgba(0, 0, 0, 0.55);
}
:root[data-theme="light"] .matrix-select {
  --ms-fg: #1a2333;
  --ms-fg-muted: #6b7280;
  --ms-bg: #ffffff;
  --ms-bg-hover: #eef2ff;
  --ms-border: #d8dce3;
  --ms-border-strong: #b9c0cc;
  --ms-accent: #4338ca;
  --ms-accent-bg: #eef0fd;
  --ms-shadow: 0 10px 30px -8px rgba(20, 24, 38, 0.25);
}

.matrix-select__trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  max-width: 11rem;
  padding: 0.4rem 0.65rem;
  font: inherit;
  font-size: 0.85rem;
  color: var(--ms-fg-muted);
  background: transparent;
  border: 1px solid var(--ms-border-strong);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.matrix-select__trigger:hover,
.matrix-select__trigger[aria-expanded="true"] {
  border-color: var(--ms-accent);
  color: var(--ms-fg);
}
.matrix-select__trigger-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.matrix-select__chevron {
  flex-shrink: 0;
  transition: transform 0.15s ease;
}
.matrix-select__trigger[aria-expanded="true"] .matrix-select__chevron {
  transform: rotate(180deg);
}

.matrix-select__panel {
  position: absolute;
  inset-inline-end: 0;
  top: 100%;
  margin-top: 0.5rem;
  z-index: 50;
  width: var(--ms-panel-width);
  max-width: 88vw;
  overflow: hidden;
  background: var(--ms-bg);
  border: 1px solid var(--ms-border-strong);
  border-radius: var(--ms-radius);
  box-shadow: var(--ms-shadow);
}
.matrix-select__panel[hidden] {
  display: none;
}

.matrix-select__search-row {
  padding: 0.5rem;
  border-bottom: 1px solid var(--ms-border);
}
.matrix-select__search {
  width: 100%;
  padding: 0.4rem 0.6rem;
  font: inherit;
  font-size: 0.85rem;
  color: var(--ms-fg);
  background: var(--ms-bg);
  border: 1px solid var(--ms-border);
  border-radius: 6px;
}
.matrix-select__search:focus {
  outline: 2px solid var(--ms-accent);
  outline-offset: 1px;
}

.matrix-select__grid {
  display: grid;
  gap: 0.25rem;
  max-height: var(--ms-panel-max-height);
  overflow-y: auto;
  padding: 0.5rem;
}
.matrix-select__grid[hidden] {
  display: none;
}

.matrix-select__option {
  display: block;
  width: 100%;
  padding: 0.45rem 0.6rem;
  text-align: start;
  font: inherit;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.12s ease;
}
.matrix-select__option:hover {
  background: var(--ms-bg-hover);
}
.matrix-select__option.is-selected {
  background: var(--ms-accent-bg);
  border-color: var(--ms-accent);
}
.matrix-select__option[hidden] {
  display: none;
}
.matrix-select__option-label {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ms-fg);
}
.matrix-select__option-sublabel {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.68rem;
  color: var(--ms-fg-muted);
}

.matrix-select__empty {
  padding: 1.5rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--ms-fg-muted);
}
.matrix-select__empty[hidden] {
  display: none;
}