/* all-resources.css — styles for /curriculum/all-resources/.
 * Colour comes from the shared curriculum tokens (--unit-1 … --unit-10 in
 * assets/curriculum-system.css); nothing here re-declares a unit hue. Every
 * selector is scoped under .ar / .ar-page so nothing leaks onto other pages.
 * Light-only, like the rest of the curriculum. */

/* The shared system paints body and ::before from --course-paper (with !important),
 * so the warm paper is set on the token. High-contrast modes keep their own white. */
body.ar-page.curriculum-product:not(.high-contrast, .hub-high-contrast) {
  --course-paper: #fbf9f2;
}

.ar {
  --ar-ink: #17324d;
  --ar-muted: #4a5b69;
  --ar-line: #d9d4c6;
  --ar-card: #ffffff;
  --ar-accent: #175da0;
  --ar-accent-ink: #0f4a82;
  --ar-radius: 10px;
  --u: var(--ar-accent);
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 16px 72px;
  color: var(--ar-ink);
  font-family: "Hanken Grotesk", system-ui, sans-serif;
}

.ar [data-unit] {
  --u: var(--ar-accent);
}
.ar [data-unit="1"] {
  --u: var(--unit-1, #316f62);
}
.ar [data-unit="2"] {
  --u: var(--unit-2, #2f6fa3);
}
.ar [data-unit="3"] {
  --u: var(--unit-3, #b5562b);
}
.ar [data-unit="4"] {
  --u: var(--unit-4, #b3402a);
}
.ar [data-unit="5"] {
  --u: var(--unit-5, #2f8a8a);
}
.ar [data-unit="6"] {
  --u: var(--unit-6, #a8792a);
}
.ar [data-unit="7"] {
  --u: var(--unit-7, #3f6db5);
}
.ar [data-unit="8"] {
  --u: var(--unit-8, #a34a6b);
}
.ar [data-unit="9"] {
  --u: var(--unit-9, #557a2f);
}
.ar [data-unit="10"] {
  --u: var(--unit-10, #5b6470);
}

.ar-sprite {
  position: absolute;
  width: 0;
  height: 0;
}

.ar-ico {
  width: 20px;
  height: 20px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ar-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ---- header ---- */
.ar-head {
  margin-bottom: 24px;
}
.ar-eyebrow {
  margin: 0 0 4px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ar-accent-ink);
}
.ar-page .ar h1 {
  margin: 0 0 8px;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--ar-ink);
}
.ar-lede {
  max-width: 44rem;
  margin: 0;
  font-size: 1.125rem;
  color: var(--ar-muted);
}
.ar-note {
  padding: 12px 16px;
  border: 1px solid var(--ar-line);
  border-radius: var(--ar-radius);
  background: var(--ar-card);
}

/* ---- toolbar ---- */
.ar-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 16px 24px;
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--ar-line);
}
.ar-search {
  flex: 1 1 320px;
}
.ar-search label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.875rem;
  font-weight: 700;
}
.ar-search-field {
  position: relative;
}
.ar-search-field .ar-ico {
  position: absolute;
  inset-block: 0;
  inset-inline-start: 14px;
  margin-block: auto;
  color: var(--ar-muted);
  pointer-events: none;
}
.ar input[type="search"] {
  width: 100%;
  min-height: 48px;
  padding: 10px 14px 10px 44px;
  border: 1.5px solid #9aa6ad;
  border-radius: var(--ar-radius);
  background: var(--ar-card);
  color: var(--ar-ink);
  font: inherit;
  font-size: 1rem;
}
.ar input[type="search"]::placeholder {
  color: #5d6c78;
}
.ar-views {
  display: inline-flex;
  padding: 4px;
  gap: 4px;
  border: 1px solid var(--ar-line);
  border-radius: 12px;
  background: #f2eee2;
}
.ar-view {
  min-height: 44px;
  padding: 8px 16px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ar-ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.ar-view[aria-pressed="true"] {
  background: var(--ar-ink);
  color: #fff;
}

/* ---- layout ---- */
.ar-layout {
  display: grid;
  grid-template-columns: 288px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}
.ar-filters {
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow: auto;
  padding: 4px 4px 4px 0;
}
.ar-filters > summary {
  display: none;
}
.ar-facet {
  margin: 0 0 20px;
  padding: 0;
  border: 0;
}
.ar-facet legend {
  margin-bottom: 8px;
  padding: 0;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ar-muted);
}
.ar-chip {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 44px;
  margin-bottom: 4px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-inline-start: 4px solid var(--u, transparent);
  border-radius: 8px;
  background: transparent;
  color: var(--ar-ink);
  font: inherit;
  text-align: start;
  cursor: pointer;
}
.ar-chip:hover {
  background: #f2eee2;
}
.ar-chip[aria-pressed="true"] {
  border-color: var(--ar-ink);
  background: var(--ar-card);
  font-weight: 700;
}
.ar-chip[data-empty="true"] {
  color: #6a7783;
  cursor: default;
}
.ar-count {
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  color: var(--ar-muted);
}

/* ---- results ---- */
.ar-results-title {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}
.ar-status {
  margin: 0 0 16px;
  color: var(--ar-muted);
}
.ar-empty {
  padding: 32px;
  border: 1.5px dashed var(--ar-line);
  border-radius: var(--ar-radius);
  text-align: center;
  color: var(--ar-muted);
}

.ar-units {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.ar-unit {
  display: flex;
  width: 100%;
  min-height: 132px;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 16px;
  border: 1px solid var(--ar-line);
  border-top: 6px solid var(--u);
  border-radius: var(--ar-radius);
  background: var(--ar-card);
  color: var(--ar-ink);
  font: inherit;
  text-align: start;
  cursor: pointer;
}
.ar-unit:hover {
  border-color: var(--u);
  box-shadow: 0 2px 10px rgb(23 50 77 / 12%);
}
.ar-unit-num {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ar-ink);
}
.ar-unit-name {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.25rem;
  line-height: 1.2;
}
.ar-unit-count {
  margin-top: auto;
  color: var(--ar-muted);
  font-size: 0.875rem;
}

.ar-unit-block {
  margin-bottom: 32px;
}
.ar-unit-head {
  margin: 0 0 8px;
  padding: 10px 14px;
  border-inline-start: 6px solid var(--u);
  border-radius: 4px;
  background: #f2eee2;
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.375rem;
}
.ar-lesson {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  margin: 20px 0 6px;
  font-size: 1rem;
}
.ar-es {
  font-weight: 400;
  color: var(--ar-muted);
  font-size: 0.875rem;
}
.ar-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.ar-row {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--ar-line);
  border-radius: var(--ar-radius);
  margin-bottom: 6px;
  background: var(--ar-card);
}
.ar-ico--type {
  color: var(--u);
}
.ar-name {
  font-weight: 700;
  color: var(--ar-accent-ink);
  text-underline-offset: 0.2em;
}
.ar-meta {
  margin: 2px 0 0;
  font-size: 0.875rem;
  color: var(--ar-muted);
  overflow-wrap: anywhere;
}
.ar-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-inline-start: 8px;
  padding: 1px 8px;
  border: 1px solid var(--ar-line);
  border-radius: 999px;
  background: #f2eee2;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ar-ink);
  white-space: nowrap;
}
.ar-badge .ar-ico {
  width: 12px;
  height: 12px;
}
.ar-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}
.ar-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 14px;
  border: 1.5px solid var(--ar-ink);
  border-radius: 8px;
  background: var(--ar-ink);
  color: #fff;
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  white-space: nowrap;
}
.ar-btn--quiet {
  background: transparent;
  color: var(--ar-ink);
}
.ar-btn:hover {
  background: var(--ar-accent-ink);
  border-color: var(--ar-accent-ink);
  color: #fff;
}
.ar-more {
  display: block;
  min-height: 48px;
  margin: 24px auto 0;
  padding: 10px 28px;
  border: 1.5px solid var(--ar-ink);
  border-radius: 8px;
  background: var(--ar-card);
  color: var(--ar-ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.ar-more[hidden] {
  display: none;
}

.ar :is(a, button, input, summary):focus-visible {
  outline: 3px solid var(--ar-accent);
  outline-offset: 3px;
}

/* ---- small screens ---- */
@media (max-width: 860px) {
  .ar-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }
  .ar-filters {
    position: static;
    max-height: none;
    overflow: visible;
    border: 1px solid var(--ar-line);
    border-radius: var(--ar-radius);
    background: var(--ar-card);
  }
  .ar-filters > summary {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0 16px;
    font-weight: 700;
    cursor: pointer;
  }
  .ar-filter-body {
    padding: 0 12px 8px;
  }
  .ar-views {
    width: 100%;
  }
  .ar-view {
    flex: 1;
  }
  .ar-row {
    grid-template-columns: 24px minmax(0, 1fr);
  }
  .ar-actions {
    grid-column: 1 / -1;
    justify-content: stretch;
  }
  .ar-btn {
    flex: 1;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .ar-unit,
  .ar-btn,
  .ar-chip {
    transition:
      box-shadow 0.15s ease,
      background-color 0.15s ease,
      border-color 0.15s ease;
  }
}

@media (forced-colors: active) {
  .ar-chip[aria-pressed="true"],
  .ar-view[aria-pressed="true"] {
    outline: 2px solid Highlight;
  }
}