:root {
  --accent-dark: #0f766e;
  --activity-container: 980px;
}

.activity-page a {
  color: var(--accent-dark);
}

.activity-page .container {
  width: min(calc(100% - 3rem), var(--activity-container));
  margin: 0 auto;
}

.activity-page.page {
  padding: 2.5rem 0 4rem;
}

.activity-page .hero-card,
.activity-page .content-card,
.activity-page .diagram-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}

.activity-page .hero-card {
  padding: 2rem;
}

.activity-page .eyebrow {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: #fff7df;
  color: #8a5a00;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.activity-page .eyebrow-boy {
  background: #e0f2fe;
  color: #0c4a6e;
}

.activity-page h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--text-strong);
}

.activity-page .summary {
  margin: 1rem 0 0;
  max-width: 44rem;
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 1.06rem;
}

.activity-page .meta-grid,
.activity-page .content-grid {
  display: grid;
  gap: 1rem;
}

.activity-page .meta-grid {
  margin-top: 1.5rem;
}

.activity-page .meta-item {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: #fffdf8;
}

.activity-page .meta-label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.activity-page .content-grid {
  margin-top: 1.5rem;
}

.activity-page .content-card,
.activity-page .diagram-card {
  padding: 1.5rem;
}

.activity-page h2 {
  margin: 0 0 0.9rem;
  font-size: 1.35rem;
  color: var(--text-strong);
}

.activity-page p,
.activity-page li {
  line-height: 1.75;
}

.activity-page ul,
.activity-page ol {
  margin: 0;
  padding-left: 1.25rem;
}

.activity-page .diagram {
  display: grid;
  gap: 0.6rem;
  margin-top: 1rem;
}

.activity-page .diagram-image {
  margin-top: 1rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

.activity-page .diagram-image img {
  display: block;
  width: 100%;
  height: auto;
}

.activity-page .diagram-row {
  padding: 0.85rem 1rem;
  border-radius: 0.9rem;
  background: #f8fafc;
  border: 1px solid var(--border);
  font-weight: 600;
}

.activity-page .seo-note {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.activity-page .full-width-card {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}

.activity-page .section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.activity-page .tabs {
  margin-top: 1rem;
}

.activity-page .tab-list {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.activity-page .tab-button {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: #ffffff;
  color: var(--text-strong);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.activity-page .tab-button.is-active {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #ffffff;
}

.activity-page .tab-panel {
  margin-top: 1.25rem;
}

.activity-page .tab-panel[hidden] {
  display: none;
}

.activity-page .equal-columns {
  grid-template-columns: 1fr;
}

.activity-page .print-button {
  border: 0;
  border-radius: 999px;
  padding: 0.8rem 1.1rem;
  background: var(--accent-dark);
  color: #ffffff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.activity-page .print-button:hover,
.activity-page .print-button:focus-visible {
  background: #115e59;
}

.activity-page .callout {
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--accent);
  background: #fff9ea;
  border-radius: 0.8rem;
}

.activity-page .print-sheet {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.activity-page .print-card {
  padding: 1rem;
  border: 1px dashed #94a3b8;
  border-radius: 0.9rem;
  background: #ffffff;
}

.activity-page .uniform-print-cards .print-card {
  min-height: 9.25rem;
}

.activity-page .leader-key-sheet .print-card {
  min-height: auto;
}

.activity-page .compact-choice-grid {
  grid-template-columns: 1fr;
}

.activity-page .fill-in-card p {
  line-height: 1.95;
}

.activity-page .print-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  color: var(--text-strong);
}

.activity-page .print-card p {
  margin: 0;
}

.activity-page .bingo-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 1rem;
  border: 1px solid var(--border);
}

.activity-page .bingo-cell {
  min-height: 110px;
  padding: 0.75rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  line-height: 1.45;
  background: #ffffff;
}

.activity-page .bingo-cell:nth-child(5n) {
  border-right: 0;
}

.activity-page .bingo-cell:nth-last-child(-n + 5) {
  border-bottom: 0;
}

.activity-page .bingo-free {
  background: #fff7df;
  font-weight: 700;
  text-align: center;
}

.activity-page .print-note {
  margin-top: 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .activity-page .meta-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .activity-page .content-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .activity-page .content-grid.equal-columns {
    grid-template-columns: 1fr 1fr;
  }

  .activity-page .compact-choice-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media print {
  .site-header,
  .site-footer,
  .activity-page .print-button {
    display: none;
  }

  .activity-page.page {
    padding: 0;
  }

  .activity-page .hero-card,
  .activity-page .content-card,
  .activity-page .diagram-card,
  .activity-page .full-width-card {
    box-shadow: none;
    break-inside: avoid;
  }
}