/* =============================================================================
 * The Lupaxa Project Portal
 * Catalogue Filters
 * ============================================================================= */

/*
 * Expanded layouts (collapsed = Filters + summary only):
 *   Projects:   search
 *               organisation | category
 *               status | sort | clear
 *   Articles:   search
 *               tag | All/New | Sort | clear
 *   Orgs:       search
 *               category | sort | clear
 *   Policies:   search
 *               category | All/New/Updated | clear
 */
.filter-panel {
  display: grid;
  grid-template-columns:
    minmax(9rem, 1.4fr)
    minmax(7rem, 1fr)
    minmax(7rem, 1fr)
    minmax(7rem, 1fr)
    auto;
  gap: 0.75rem;
  align-items: end;
  margin: 0 0 1.5rem;
  padding: 0.9rem 1rem;
  background:
    color-mix(
      in srgb,
      var(--md-default-bg-color) 96%,
      var(--lupaxa-blue)
    );
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 0.5rem;
  box-shadow: var(--md-shadow-z1);
}

.filter-panel.filter-panel--with-sort {
  grid-template-columns:
    minmax(8rem, 1.2fr)
    minmax(6.5rem, 1fr)
    minmax(6.5rem, 1fr)
    minmax(6.5rem, 1fr)
    minmax(6.5rem, 1fr)
    auto;
}

/*
 * Projects (expanded):
 *   search (full width)
 *   organisation | category
 *   status | sort | clear
 */
.filter-panel[data-project-filters] {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  column-gap: 1rem;
  row-gap: 0.9rem;
}

.filter-panel[data-project-filters] > .filter-panel-toolbar,
.filter-panel[data-project-filters] > .filter-panel-search {
  grid-column: 1 / -1;
}

.filter-panel[data-project-filters] > .filter-panel-select:nth-child(3) {
  grid-column: 1 / 4;
}

.filter-panel[data-project-filters] > .filter-panel-select:nth-child(4) {
  grid-column: 4 / 7;
}

.filter-panel[data-project-filters] > .filter-panel-select:nth-child(5) {
  grid-column: 1 / 3;
}

.filter-panel[data-project-filters] > .filter-panel-toggle {
  grid-column: 3 / 5;
}

.filter-panel[data-project-filters] > .filter-panel-actions {
  grid-column: 5 / 7;
  justify-self: stretch;
  justify-content: flex-start;
}

.filter-panel[data-project-filters] .filter-panel-clear {
  width: 100%;
  min-width: 0;
}

/*
 * Articles (expanded):
 *   search (full width)
 *   tag | All/New | Sort | clear
 */
.filter-panel[data-article-filters] {
  grid-template-columns:
    minmax(0, 1fr)
    minmax(8rem, 1fr)
    minmax(8rem, 1fr)
    auto;
  column-gap: 1rem;
  row-gap: 0.9rem;
}

.filter-panel[data-article-filters] > .filter-panel-toolbar,
.filter-panel[data-article-filters] > .filter-panel-search {
  grid-column: 1 / -1;
}

.filter-panel[data-article-filters] > .filter-panel-select,
.filter-panel[data-article-filters] > .filter-panel-toggle,
.filter-panel[data-article-filters] > .filter-panel-actions {
  grid-column: auto;
}

.filter-panel[data-article-filters] > .filter-panel-actions {
  justify-self: stretch;
  justify-content: flex-start;
}

.filter-panel[data-article-filters] .filter-panel-clear {
  width: 100%;
  min-width: 0;
}

.filter-panel-toolbar {
  display: flex;
  grid-column: 1 / -1;
  flex-wrap: nowrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-width: 0;
}

.filter-panel-toolbar .filter-panel-summary,
.md-typeset .filter-panel-toolbar .filter-panel-summary {
  grid-column: auto;
  flex: 1 1 auto;
  justify-self: unset;
  width: auto;
  min-width: 0;
  margin-top: 0;
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.filter-panel-expand {
  display: inline-flex;
  box-sizing: border-box;
  flex: 0 0 auto;
  gap: 0.4rem;
  min-width: 9.5rem;
  min-height: 2.25rem;
  align-items: center;
  justify-content: center;
  padding: 0.42rem 0.85rem;
  font-size: 0.82rem;
  line-height: 1.3;
  white-space: nowrap;
}

.filter-panel-expand__icon {
  display: none;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 1.05em;
  height: 1.05em;
}

.filter-panel-expand__icon--show {
  display: inline-flex;
}

.filter-panel--expanded .filter-panel-expand__icon--show {
  display: none;
}

.filter-panel--expanded .filter-panel-expand__icon--hide {
  display: inline-flex;
}

.filter-panel-expand__icon svg {
  display: block;
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.filter-panel-expand__label {
  display: inline-block;
}

.filter-panel.filter-panel--compact {
  grid-template-columns:
    minmax(12rem, 1.6fr)
    minmax(10rem, 1fr)
    auto;
}

.filter-panel.filter-panel--compact:has(
  .filter-panel-select + .filter-panel-select
) {
  grid-template-columns:
    minmax(10rem, 1.4fr)
    minmax(8rem, 1fr)
    minmax(8rem, 1fr)
    auto;
}

/*
 * Policies (expanded):
 *   search (full width)
 *   category | All/New/Updated | clear
 */
.filter-panel[data-policy-filters] {
  grid-template-columns:
    minmax(0, 1fr)
    minmax(12rem, 1.3fr)
    auto;
  column-gap: 1rem;
  row-gap: 0.9rem;
}

.filter-panel[data-policy-filters] > .filter-panel-toolbar,
.filter-panel[data-policy-filters] > .filter-panel-search {
  grid-column: 1 / -1;
}

.filter-panel[data-policy-filters] > .filter-panel-select,
.filter-panel[data-policy-filters] > .filter-panel-toggle,
.filter-panel[data-policy-filters] > .filter-panel-actions {
  grid-column: auto;
}

.filter-panel[data-policy-filters] > .filter-panel-actions {
  justify-self: stretch;
  justify-content: flex-start;
}

/*
 * Organisations (expanded):
 *   search (full width)
 *   category | sort | clear
 */
.filter-panel[data-organisation-filters] {
  grid-template-columns:
    minmax(0, 1.2fr)
    minmax(10rem, 1fr)
    auto;
  column-gap: 1rem;
  row-gap: 0.9rem;
}

.filter-panel[data-organisation-filters] > .filter-panel-toolbar,
.filter-panel[data-organisation-filters] > .filter-panel-search {
  grid-column: 1 / -1;
}

.filter-panel[data-organisation-filters] > .filter-panel-select,
.filter-panel[data-organisation-filters] > .filter-panel-toggle,
.filter-panel[data-organisation-filters] > .filter-panel-actions {
  grid-column: auto;
}

.filter-panel[data-organisation-filters] > .filter-panel-actions {
  justify-self: stretch;
  justify-content: flex-start;
}

.filter-panel:not(.filter-panel--expanded) > .filter-panel-search,
.filter-panel:not(.filter-panel--expanded) > .filter-panel-select,
.filter-panel:not(.filter-panel--expanded) > .filter-panel-toggle,
.filter-panel:not(.filter-panel--expanded) > .filter-panel-actions {
  display: none;
}

/* Collapsed: only the toolbar row (Filters + Showing X) */
.filter-panel:not(.filter-panel--expanded),
.filter-panel.filter-panel--with-sort:not(.filter-panel--expanded),
.filter-panel.filter-panel--compact:not(.filter-panel--expanded),
.filter-panel[data-project-filters]:not(.filter-panel--expanded),
.filter-panel[data-article-filters]:not(.filter-panel--expanded),
.filter-panel[data-organisation-filters]:not(.filter-panel--expanded),
.filter-panel[data-policy-filters]:not(.filter-panel--expanded) {
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}

article.md-content__inner:has(> .filter-panel:first-child)::before {
  content: "";
  display: block;
  height: 1.5rem;
}

.filter-panel-search,
.filter-panel-select,
.filter-panel-toggle {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.3rem;
}

/*
 * Segmented toggle column (Status All|New, Sort A–Z|Newest) — same
 * footprint as a filter-panel-select.
 */
.filter-panel-toggle__options {
  display: flex;
  width: 100%;
  min-height: 2.25rem;
}

.filter-panel-toggle__option {
  box-sizing: border-box;
  display: inline-flex;
  flex: 1 1 0;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 2.25rem;
  height: 2.25rem;
  padding: 0 0.45rem;
  color: var(--md-default-fg-color);
  font: inherit;
  font-size: 0.82rem;
  line-height: 1;
  white-space: nowrap;
  background: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  cursor: pointer;
  appearance: none;
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease,
    background-color 150ms ease,
    color 150ms ease;
}

.filter-panel-toggle__option:first-child {
  border-radius: 0.3rem 0 0 0.3rem;
}

.filter-panel-toggle__option + .filter-panel-toggle__option {
  margin-left: -1px;
}

.filter-panel-toggle__option:not(:first-child):not(:last-child) {
  border-radius: 0;
}

.filter-panel-toggle__option:last-child {
  border-radius: 0 0.3rem 0.3rem 0;
}

.filter-panel-toggle__option:hover {
  z-index: 1;
  border-color: var(--lupaxa-light-blue);
}

.filter-panel-toggle__option:focus-visible {
  z-index: 1;
  border-color: var(--lupaxa-light-blue);
  outline: none;
  box-shadow:
    0 0 0 0.12rem
    color-mix(
      in srgb,
      var(--lupaxa-light-blue) 24%,
      transparent
    );
}

.filter-panel-toggle__option[aria-pressed="true"] {
  z-index: 1;
  color: var(--lupaxa-white);
  background: var(--lupaxa-blue);
  border-color: var(--lupaxa-blue);
}

/* Beat Material .md-typeset button defaults */
.md-typeset .filter-panel-toggle__option {
  margin: 0;
  max-height: 2.25rem;
  text-align: center;
}

.filter-panel label {
  color: var(--md-default-fg-color);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  line-height: 1.2;
  opacity: 0.8;
  text-transform: uppercase;
}

.filter-panel input,
.filter-panel select {
  width: 100%;
  min-width: 0;
  min-height: 2.25rem;
  padding: 0.42rem 0.65rem;
  color: var(--md-default-fg-color);
  font: inherit;
  font-size: 0.82rem;
  line-height: 1.3;
  background: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 0.3rem;
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease,
    background-color 150ms ease;
}

.filter-panel input::placeholder {
  color: var(--md-default-fg-color--light);
  opacity: 0.75;
}

.filter-panel input:hover,
.filter-panel select:hover {
  border-color: var(--lupaxa-light-blue);
}

.filter-panel input:focus,
.filter-panel select:focus {
  border-color: var(--lupaxa-light-blue);
  outline: none;
  box-shadow:
    0 0 0 0.12rem
    color-mix(
      in srgb,
      var(--lupaxa-light-blue) 24%,
      transparent
    );
}

.filter-panel-actions {
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  min-width: 0;
}

/*
 * Visual styles (colour, hover, active, disabled) are shared with
 * .md-button.lupaxa-button in buttons.css. Layout-specific sizing stays here.
 */
.filter-panel-clear {
  display: inline-flex;
  box-sizing: border-box;
  min-width: 8.5rem;
  min-height: 2.25rem;
  align-items: center;
  justify-content: center;
  padding: 0.42rem 0.85rem;
  font-size: 0.82rem;
  line-height: 1.3;
  white-space: nowrap;
  transition:
    color var(--lupaxa-transition-fast),
    background-color var(--lupaxa-transition-fast),
    border-color var(--lupaxa-transition-fast),
    transform var(--lupaxa-transition-fast);
}

.filter-panel-summary {
  box-sizing: border-box;
  color: var(--md-default-fg-color--light);
  font-size: 0.74rem;
  line-height: 1.3;
  text-align: right;
}

/* Summary lives in the toolbar — keep it on the Filters row */
.md-typeset .filter-panel .filter-panel-toolbar .filter-panel-summary,
.md-typeset
  .filter-panel.filter-panel--compact
  .filter-panel-toolbar
  .filter-panel-summary,
.filter-panel-toolbar .filter-panel-summary {
  grid-column: auto;
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
  margin-top: 0;
  text-align: right;
}

[data-md-color-scheme="slate"] .filter-panel {
  background:
    color-mix(
      in srgb,
      var(--md-default-bg-color) 94%,
      var(--lupaxa-light-blue)
    );
}

/* =============================================================================
 * Responsive — aligned with site breakpoints in 90-responsive.css
 *
 * Breakpoints (16px root):
 *   ≤76.234375em (~1220px)  tablet / laptop narrow — keep desktop row plans
 *   ≤59.984375em (~960px)   tablet portrait — tighten crowded rows
 *   ≤44.984375em (~720px)   mobile — full stack
 *
 * Prefer [data-*-filters] so catalogue rules don’t fight each other.
 * ============================================================================= */

/* Shared: Clear stretches in multi-control rows */
.filter-panel[data-project-filters] .filter-panel-clear,
.filter-panel[data-article-filters] .filter-panel-clear,
.filter-panel[data-organisation-filters] .filter-panel-clear,
.filter-panel[data-policy-filters] .filter-panel-clear {
  flex: 1 1 auto;
  width: 100%;
  min-width: 0;
}

/*
 * Tablet / laptop narrow (~1220px): same expanded layouts as desktop.
 * (Desktop rules above already use full-width search + control rows.)
 */
@media screen and (max-width: 76.234375em) {
  .filter-panel-summary {
    text-align: right;
  }

  /* Collapsed: only toolbar */
  .filter-panel:not(.filter-panel--expanded),
  .filter-panel.filter-panel--with-sort:not(.filter-panel--expanded),
  .filter-panel.filter-panel--compact:not(.filter-panel--expanded),
  .filter-panel[data-project-filters]:not(.filter-panel--expanded),
  .filter-panel[data-article-filters]:not(.filter-panel--expanded),
  .filter-panel[data-organisation-filters]:not(.filter-panel--expanded),
  .filter-panel[data-policy-filters]:not(.filter-panel--expanded) {
    grid-template-columns: minmax(0, 1fr);
    align-items: center;
  }
}

/*
 * Tablet portrait (~960px):
 *   Projects:      search / org|category / status|sort|clear  (unchanged)
 *   Articles:      search / tag|All-New / Sort|Clear
 *   Organisations: search / category|sort / clear
 *   Policies:      search / category|All-New-Updated / clear
 */
@media screen and (max-width: 59.984375em) {
  /* --- Projects: keep 3-row plan --- */
  .filter-panel[data-project-filters] {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    column-gap: 0.85rem;
    row-gap: 0.85rem;
  }

  .filter-panel[data-project-filters] > .filter-panel-toolbar,
  .filter-panel[data-project-filters] > .filter-panel-search {
    grid-column: 1 / -1;
  }

  .filter-panel[data-project-filters] > .filter-panel-select:nth-child(3) {
    grid-column: 1 / 4;
  }

  .filter-panel[data-project-filters] > .filter-panel-select:nth-child(4) {
    grid-column: 4 / 7;
  }

  .filter-panel[data-project-filters] > .filter-panel-select:nth-child(5) {
    grid-column: 1 / 3;
  }

  .filter-panel[data-project-filters] > .filter-panel-toggle {
    grid-column: 3 / 5;
  }

  .filter-panel[data-project-filters] > .filter-panel-actions {
    grid-column: 5 / 7;
    justify-self: stretch;
    justify-content: flex-start;
  }

  /* --- Articles: search; tag | view; sort | clear --- */
  .filter-panel[data-article-filters] {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: 0.85rem;
    row-gap: 0.85rem;
  }

  .filter-panel[data-article-filters] > .filter-panel-toolbar,
  .filter-panel[data-article-filters] > .filter-panel-search {
    grid-column: 1 / -1;
  }

  .filter-panel[data-article-filters] > .filter-panel-select,
  .filter-panel[data-article-filters] > .filter-panel-toggle,
  .filter-panel[data-article-filters] > .filter-panel-actions {
    grid-column: auto;
  }

  .filter-panel[data-article-filters] > .filter-panel-actions {
    justify-self: stretch;
    justify-content: flex-start;
  }

  /* --- Organisations: search; category | sort; clear --- */
  .filter-panel[data-organisation-filters] {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: 0.85rem;
    row-gap: 0.85rem;
  }

  .filter-panel[data-organisation-filters] > .filter-panel-toolbar,
  .filter-panel[data-organisation-filters] > .filter-panel-search {
    grid-column: 1 / -1;
  }

  .filter-panel[data-organisation-filters] > .filter-panel-select,
  .filter-panel[data-organisation-filters] > .filter-panel-toggle {
    grid-column: auto;
  }

  .filter-panel[data-organisation-filters] > .filter-panel-actions {
    grid-column: 1 / -1;
    justify-self: stretch;
    justify-content: flex-start;
  }

  /* --- Policies: search; category | toggle; clear --- */
  .filter-panel[data-policy-filters] {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    column-gap: 0.85rem;
    row-gap: 0.85rem;
  }

  .filter-panel[data-policy-filters] > .filter-panel-toolbar,
  .filter-panel[data-policy-filters] > .filter-panel-search {
    grid-column: 1 / -1;
  }

  .filter-panel[data-policy-filters] > .filter-panel-select,
  .filter-panel[data-policy-filters] > .filter-panel-toggle {
    grid-column: auto;
  }

  .filter-panel[data-policy-filters] > .filter-panel-actions {
    grid-column: 1 / -1;
    justify-self: stretch;
    justify-content: flex-start;
  }

  .filter-panel[data-policy-filters] .filter-panel-toggle__option {
    padding: 0 0.35rem;
    font-size: 0.78rem;
  }

  /* Collapsed: only toolbar */
  .filter-panel:not(.filter-panel--expanded),
  .filter-panel.filter-panel--with-sort:not(.filter-panel--expanded),
  .filter-panel.filter-panel--compact:not(.filter-panel--expanded),
  .filter-panel[data-project-filters]:not(.filter-panel--expanded),
  .filter-panel[data-article-filters]:not(.filter-panel--expanded),
  .filter-panel[data-organisation-filters]:not(.filter-panel--expanded),
  .filter-panel[data-policy-filters]:not(.filter-panel--expanded) {
    grid-template-columns: minmax(0, 1fr);
    align-items: center;
  }
}

/*
 * Mobile (~720px): every catalogue stacks — one control per row.
 * Toolbar keeps Filters + Showing X on one row.
 */
@media screen and (max-width: 44.984375em) {
  .filter-panel,
  .filter-panel.filter-panel--with-sort,
  .filter-panel.filter-panel--compact,
  .filter-panel[data-project-filters],
  .filter-panel[data-article-filters],
  .filter-panel[data-organisation-filters],
  .filter-panel[data-policy-filters] {
    grid-template-columns: minmax(0, 1fr);
    column-gap: 0.7rem;
    row-gap: 0.7rem;
    gap: 0.7rem;
    padding: 0.85rem;
  }

  .filter-panel > .filter-panel-toolbar,
  .filter-panel > .filter-panel-search,
  .filter-panel > .filter-panel-select,
  .filter-panel > .filter-panel-toggle,
  .filter-panel > .filter-panel-actions,
  .filter-panel[data-project-filters] > .filter-panel-select:nth-child(3),
  .filter-panel[data-project-filters] > .filter-panel-select:nth-child(4),
  .filter-panel[data-project-filters] > .filter-panel-select:nth-child(5),
  .filter-panel[data-project-filters] > .filter-panel-toggle,
  .filter-panel[data-project-filters] > .filter-panel-actions,
  .filter-panel[data-article-filters] > .filter-panel-select,
  .filter-panel[data-article-filters] > .filter-panel-toggle,
  .filter-panel[data-article-filters] > .filter-panel-actions,
  .filter-panel[data-organisation-filters] > .filter-panel-select,
  .filter-panel[data-organisation-filters] > .filter-panel-toggle,
  .filter-panel[data-organisation-filters] > .filter-panel-actions,
  .filter-panel[data-policy-filters] > .filter-panel-select,
  .filter-panel[data-policy-filters] > .filter-panel-toggle,
  .filter-panel[data-policy-filters] > .filter-panel-actions {
    grid-column: 1 / -1;
    justify-self: stretch;
    width: 100%;
    min-width: 0;
  }

  .filter-panel-expand {
    width: auto;
    min-width: 9.5rem;
  }

  .filter-panel > .filter-panel-actions {
    /*
     * Reserve the same vertical slot as a field label + gap so Clear
     * isn’t tighter to the control above than Category/Status/etc.
     */
    justify-content: flex-start;
    padding-top: calc(0.68rem * 1.2 + 0.3rem);
  }

  .md-typeset .filter-panel .md-button.filter-panel-clear,
  .md-typeset .filter-panel .filter-panel-clear,
  .filter-panel-clear {
    flex: 1 1 auto;
    width: 100%;
    min-width: 0;
  }

  .filter-panel-toggle__options {
    width: 100%;
  }

  .filter-panel-toggle__option {
    flex: 1 1 0;
    min-width: 0;
    padding: 0 0.3rem;
    font-size: 0.78rem;
  }

  .filter-panel-toolbar .filter-panel-summary,
  .md-typeset .filter-panel-toolbar .filter-panel-summary {
    margin-top: 0;
    text-align: right;
  }

  /* Collapsed: only toolbar */
  .filter-panel:not(.filter-panel--expanded),
  .filter-panel.filter-panel--with-sort:not(.filter-panel--expanded),
  .filter-panel.filter-panel--compact:not(.filter-panel--expanded),
  .filter-panel[data-project-filters]:not(.filter-panel--expanded),
  .filter-panel[data-article-filters]:not(.filter-panel--expanded),
  .filter-panel[data-organisation-filters]:not(.filter-panel--expanded),
  .filter-panel[data-policy-filters]:not(.filter-panel--expanded) {
    grid-template-columns: minmax(0, 1fr);
    align-items: center;
  }

  .filter-panel:not(.filter-panel--expanded) > .filter-panel-actions {
    padding-top: 0;
  }
}