/* Shared F-10 resource presentation. Lesson content and activity engines stay local. */
.skillr-resource {
  --resource-ink: #203047;
  --resource-blue: #2457d6;
  --resource-heading: #173968;
  --resource-line: #d7e3f2;
  --resource-soft: #f5f8ff;
  background: #f4f7fb;
  color: var(--resource-ink);
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  letter-spacing: 0;
}

.skillr-resource :where(h1, h2, h3, h4, summary, .eyebrow, .curriculum-eyebrow) {
  letter-spacing: 0;
  overflow-wrap: break-word;
}

.skillr-resource :is(.curriculum-page, .static-topic-page, .display-shell, .container) {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding: 20px 24px 40px;
  border: 0;
  border-radius: 0;
  background: #fff;
  box-shadow: none;
}

.skillr-resource :where(.main-nav, .breadcrumb) {
  margin-block: 0 12px;
}

.skillr-resource :is(.curriculum-hero, .static-topic-hero, .page-hero) {
  margin: 0 0 24px;
  padding: 20px 0 24px;
  border: 0;
  border-bottom: 2px solid var(--resource-line);
  border-radius: 0;
  background: #fff;
  box-shadow: none;
}

.skillr-resource :is(.curriculum-hero, .static-topic-hero, .page-hero) h1 {
  max-width: 38ch;
  margin: 8px 0 12px;
  color: var(--resource-heading);
  font-size: 1.875rem;
  line-height: 1.25;
  text-wrap: balance;
}

.skillr-resource :is(.curriculum-hero__lead, .static-topic-hero__lead, .page-hero p) {
  color: var(--resource-ink);
  max-width: 75ch;
  font-size: 1rem;
  line-height: 1.6;
}

/* White topic headers must override the pale labels from the blue hero theme. */
.skillr-resource .static-topic-hero .curriculum-eyebrow {
  color: var(--resource-heading);
}

.skillr-resource :where(.eyebrow, .curriculum-eyebrow, .display-eyebrow) {
  font-size: .875rem;
  font-weight: 700;
}

.skillr-resource .resource-actions {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 8px;
  max-width: none;
  margin: 16px 0 0;
  padding: 0;
}

.skillr-resource .resource-actions > a,
.skillr-resource .worksheet-resource-actions a,
.skillr-resource .hero-actions .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 44px;
  width: auto;
  margin: 0;
  padding: 10px 14px;
  border: 1px solid var(--resource-line);
  border-radius: 8px;
  background: #fff;
  color: var(--resource-heading);
  font-size: .9375rem;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  white-space: normal;
  overflow-wrap: anywhere;
  box-shadow: none;
}

.skillr-resource .resource-actions > a[aria-current="page"],
.skillr-resource .hero-actions .button:not(.secondary) {
  border-color: var(--resource-blue);
  background: var(--resource-blue);
  color: #fff;
}

.skillr-resource .resource-actions > a:hover,
.skillr-resource .worksheet-resource-actions a:hover,
.skillr-resource .hero-actions .button:hover {
  border-color: var(--resource-blue);
  background: #eaf1ff;
  color: var(--resource-heading);
  transform: none;
}

.skillr-resource a:focus-visible,
.skillr-resource button:focus-visible,
.skillr-resource summary:focus-visible {
  outline: 3px solid var(--resource-blue);
  outline-offset: 3px;
}

.skillr-resource--topic :is(.curriculum-layout, .static-topic-grid) {
  grid-template-columns: minmax(0, 1fr);
  width: 100%;
  max-width: 980px;
  margin-inline: auto;
}

.skillr-resource--topic :where(.curriculum-layout, .static-topic-grid) > * {
  min-width: 0;
}

.skillr-resource--topic :is(.curriculum-topic-section, .static-topic-summary) {
  margin: 0 0 16px;
  border: 1px solid var(--resource-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: none;
  overflow: visible;
}

.skillr-resource--topic :is(details.curriculum-topic-section, details.static-topic-summary) {
  padding: 0;
}

.skillr-resource--topic :is(.curriculum-topic-section, .static-topic-summary) > summary,
.skillr-resource .worksheet-strand > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 16px 18px;
  border-radius: 8px;
  background: var(--resource-soft);
  color: var(--resource-heading);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.45;
  list-style: none;
  cursor: pointer;
}

.skillr-resource--topic :is(.curriculum-topic-section, .static-topic-summary) > summary::-webkit-details-marker,
.skillr-resource .worksheet-strand > summary::-webkit-details-marker {
  display: none;
}

.skillr-resource--topic :is(.curriculum-topic-section, .static-topic-summary) > summary::after,
.skillr-resource .worksheet-strand > summary::after {
  content: "+";
  display: grid;
  place-items: center;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border: 1px solid var(--resource-line);
  border-radius: 50%;
  background: #fff;
  font-size: 1rem;
  line-height: 1;
}

.skillr-resource--topic :is(.curriculum-topic-section, .static-topic-summary)[open] > summary::after,
.skillr-resource .worksheet-strand[open] > summary::after {
  content: "-";
}

.skillr-resource--topic :is(.curriculum-detail-body, .static-topic-panel) {
  max-width: none;
  padding: 20px;
}

.skillr-resource--topic :is(.curriculum-topic-section, .static-topic-summary) h2,
.skillr-resource--worksheet .content-section > h2 {
  color: var(--resource-heading);
  font-size: 1.375rem;
  line-height: 1.4;
}

.skillr-resource--topic :is(.curriculum-topic-section, .static-topic-summary) h3 {
  font-size: 1.125rem;
  line-height: 1.45;
}

/* Accordion classroom pages can grow; fixed slide artwork is never resized here. */
.skillr-resource--classroom .display-board {
  display: block;
  aspect-ratio: auto;
  min-height: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  overflow: visible;
}

.skillr-resource--classroom .display-header {
  margin: 20px 0;
  padding: 24px;
  border-radius: 8px;
  background: var(--resource-heading);
}

.skillr-resource--classroom .display-header h1 {
  max-width: 38ch;
  font-size: 2rem;
  line-height: 1.25;
}

.skillr-resource--classroom .display-content {
  padding: 0;
  overflow: visible;
}

.skillr-resource--classroom .section-stack > details {
  border: 1px solid var(--resource-line);
  border-radius: 8px;
  box-shadow: none;
}

.skillr-resource--classroom .section-stack > details > summary {
  min-height: 60px;
  padding: 16px 18px;
  background: var(--resource-soft);
  font-size: 1.25rem;
  line-height: 1.45;
}

.skillr-resource--classroom .content-block h2 {
  max-width: none;
  font-size: 1.5rem;
  line-height: 1.4;
}

.skillr-resource--classroom .content-block h3 {
  font-size: 1.25rem;
  line-height: 1.45;
}

.skillr-resource--classroom .content-block :where(p, li, dt, dd) {
  font-size: 1.25rem;
  line-height: 1.6;
}

.skillr-resource--classroom .content-block {
  border-radius: 8px;
}

.skillr-resource--worksheet .content-section {
  margin-block: 28px;
}

.skillr-resource .worksheet-navigation {
  display: grid;
  gap: 12px;
  margin-block: 0 24px;
}

.skillr-resource .worksheet-navigation nav {
  gap: 6px;
  margin: 0;
  padding: 0;
}

.skillr-resource .worksheet-navigation a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--resource-line);
  border-radius: 8px;
  font-size: .9375rem;
  line-height: 1.4;
}

.skillr-resource .worksheet-navigation a[aria-current="page"] {
  background: var(--resource-heading);
  color: #fff;
}

.skillr-resource .worksheet-strand {
  margin-block: 12px;
  border: 1px solid var(--resource-line);
  border-radius: 8px;
}

.skillr-resource .worksheet-strand > summary > span:first-child {
  flex: 1;
}

.skillr-resource .worksheet-strand-count,
.skillr-resource .worksheet-resource-code {
  color: #53657d;
  font-size: .875rem;
  font-weight: 600;
}

.skillr-resource .worksheet-resource-list {
  margin: 0;
  padding: 0 18px;
  list-style: none;
}

.skillr-resource .worksheet-resource-list > li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  align-items: center;
  gap: 12px 24px;
  padding-block: 18px;
}

.skillr-resource .worksheet-resource-list > li + li {
  border-top: 1px solid var(--resource-line);
}

.skillr-resource .worksheet-resource-list h3 {
  margin: 4px 0 0;
  font-size: 1rem;
  line-height: 1.5;
}

.skillr-resource .worksheet-resource-list h3 a {
  color: var(--resource-heading);
  text-decoration: none;
}

.skillr-resource .worksheet-resource-list h3 a:hover {
  text-decoration: underline;
}

.skillr-resource .worksheet-resource-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.skillr-resource .worksheet-resource-actions a {
  padding: 8px 10px;
  font-size: .875rem;
}

.skillr-resource .worksheet-year-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--resource-line);
  border-radius: 8px;
  background: #fff;
}

.skillr-resource .worksheet-year-card h3 {
  margin: 0 0 12px;
  font-size: 1.125rem;
  color: var(--resource-heading);
}

.skillr-resource :is(.worksheet-intent-grid, .worksheet-sample-grid, .worksheet-note-grid) {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
}

.skillr-resource :is(.worksheet-note-card, .worksheet-sample-card, .worksheet-route-card, .worksheet-faq details) {
  border-radius: 8px;
  box-shadow: none;
}

.skillr-resource .worksheet-faq summary {
  min-height: 44px;
  padding-block: 8px;
}

@media (max-width: 760px) {
  .skillr-resource :is(.curriculum-page, .static-topic-page, .display-shell, .container) {
    padding: 16px;
  }

  .skillr-resource :is(.curriculum-hero, .static-topic-hero, .page-hero) h1,
  .skillr-resource--classroom .display-header h1 {
    font-size: 1.5rem;
  }

  .skillr-resource .resource-actions > a {
    flex: 1 1 140px;
  }

  .skillr-resource .worksheet-resource-list > li {
    grid-template-columns: minmax(0, 1fr);
  }

  .skillr-resource .worksheet-strand > summary {
    flex-wrap: wrap;
  }

  .skillr-resource--classroom .display-header {
    padding: 20px;
  }

  .skillr-resource--topic :is(.curriculum-detail-body, .static-topic-panel) {
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .skillr-resource a {
    transition: none;
  }
}