/* Activity Styles - Meadow Math */

/* ========== ACTIVITY GRID ========== */

.activities-container {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: var(--space-6) 0;
}

.activities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-6);
}

/* ========== ACTIVITY CARD ========== */

.activity-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: 0 5px 0 rgba(0, 0, 0, 0.1), 0 8px 20px rgba(0, 0, 0, 0.08);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: pointer;
  min-height: 280px;
  position: relative;
  overflow: hidden;
  border: 3px solid rgba(255, 255, 255, 0.8);
}

.activity-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 8px 0 rgba(0, 0, 0, 0.12), 0 16px 40px rgba(0, 0, 0, 0.12);
  border-color: var(--color-secondary);
}

.activity-card:active {
  transform: translateY(2px) scale(1);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.08);
}

.activity-icon {
  width: var(--activity-icon-size);
  height: var(--activity-icon-size);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--icon-3xl);
  transition: transform var(--duration-medium) var(--ease-out);
}

.activity-card:hover .activity-icon {
  transform: scale(1.1) rotate(5deg);
}

.activity-title {
  font-family: var(--font-secondary);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-neutral-900);
  margin-bottom: var(--space-3);
  line-height: var(--leading-snug);
}

.activity-description {
  font-size: var(--text-base);
  color: var(--color-neutral-600);
  line-height: var(--leading-relaxed);
  flex: 1;
}

/* ========== LEVEL SECTIONS ========== */

.level-section {
  margin-bottom: var(--space-12);
}

.level-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.level-title {
  font-family: var(--font-secondary);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  color: var(--color-neutral-900);
  margin: 0;
}

.level-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  background: linear-gradient(to bottom, #72d0ff, #4fc1ff);
  color: white;
  font-family: var(--font-secondary);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  border-radius: var(--radius-full);
  box-shadow: 0 3px 0 #2a9ad8, 0 4px 8px rgba(0, 0, 0, 0.15);
  border: 2px solid white;
  text-shadow: 1px 1px 0 #2a9ad8;
}

/* ========== TAB SYSTEM ========== */

.tabs-container {
  margin-bottom: var(--space-8);
}

.tabs-list {
  display: flex;
  gap: var(--space-2);
  border-bottom: 2px solid var(--color-neutral-200);
  margin-bottom: var(--space-6);
}

.tab-button {
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-secondary);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-neutral-600);
  background: linear-gradient(to bottom, #f8f8f8, #f0f0f0);
  border: 2px solid #ddd;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  border-bottom: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  bottom: -2px;
  box-shadow: 0 -3px 0 #ddd inset;
  text-shadow: 1px 1px 0 #fff;
}

.tab-button:hover {
  color: var(--color-primary);
  background: linear-gradient(to bottom, #fff, #f8f8f8);
  transform: translateY(-2px);
}

.tab-button.active {
  color: white;
  background: linear-gradient(to bottom, #72d0ff, #4fc1ff);
  border-color: #4fc1ff;
  box-shadow: 0 -3px 0 #2a9ad8 inset;
  text-shadow: 1px 1px 0 #2a9ad8;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeIn var(--duration-slow) var(--ease-out);
}

/* ========== LEARN MORE SECTION ========== */

.learn-more-content {
  max-width: 800px;
}

/* Learn More Cards Layout */
.learn-more-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.learn-more-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.06), 0 6px 16px rgba(0, 0, 0, 0.06);
  border: 2px solid rgba(0, 201, 201, 0.1);
  transition: all 0.2s ease;
}

.learn-more-card:hover {
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.08), 0 10px 24px rgba(0, 0, 0, 0.08);
  border-color: rgba(0, 201, 201, 0.2);
}

.learn-more-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-neutral-100);
}

.learn-more-card-icon {
  font-size: var(--text-2xl);
  line-height: 1;
}

.learn-more-card-title {
  font-family: var(--font-secondary);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-neutral-800);
  margin: 0;
}

.learn-more-card-content {
  color: var(--color-neutral-700);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

.learn-more-card-content p {
  margin: 0;
}

/* Learn More Bullets (What to Notice) */
.learn-more-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.learn-more-bullets li {
  position: relative;
  padding-left: var(--space-6);
}

.learn-more-bullets li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: var(--weight-bold);
  font-size: var(--text-lg);
}

/* Try at Home Items - Simple format with bold title and description */
.try-at-home-item {
  margin-bottom: var(--space-4);
}

.try-at-home-item:last-child {
  margin-bottom: 0;
}

.try-at-home-item > strong {
  display: block;
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-neutral-800);
  margin-bottom: var(--space-1);
}

.try-at-home-item p {
  margin: 0;
  color: var(--color-neutral-700);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

/* Legacy Try at Home Games - kept for backwards compatibility */
.try-at-home-game {
  padding: var(--space-4);
  background: linear-gradient(135deg, #f0fdf4, #ecfdf5);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  border-left: 4px solid var(--color-success);
}

.try-at-home-game:last-child {
  margin-bottom: 0;
}

.try-at-home-game > strong {
  display: block;
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-neutral-800);
  margin-bottom: var(--space-2);
}

.try-at-home-game p {
  margin: 0;
  color: var(--color-neutral-600);
  font-size: var(--text-sm);
}

/* Card Type Color Variants */

/* Big Idea Card - Yellow/Gold */
.learn-more-card-big-idea {
  background: linear-gradient(135deg, #fffef0 0%, white 50%);
  border-left: 4px solid #facc15;
}

.learn-more-card-big-idea:hover {
  border-color: rgba(250, 204, 21, 0.3);
}

.learn-more-card-big-idea .learn-more-card-header {
  border-bottom-color: rgba(250, 204, 21, 0.3);
}

/* What to Notice Card - Blue */
.learn-more-card-notice {
  background: linear-gradient(135deg, #f0f7ff 0%, white 50%);
  border-left: 4px solid #60a5fa;
}

.learn-more-card-notice:hover {
  border-color: rgba(96, 165, 250, 0.3);
}

.learn-more-card-notice .learn-more-card-header {
  border-bottom-color: rgba(96, 165, 250, 0.3);
}

/* Try at Home Card - Green */
.learn-more-card-home {
  background: linear-gradient(135deg, #f0fff4 0%, white 50%);
  border-left: 4px solid #4ade80;
}

.learn-more-card-home:hover {
  border-color: rgba(74, 222, 128, 0.3);
}

.learn-more-card-home .learn-more-card-header {
  border-bottom-color: rgba(74, 222, 128, 0.3);
}

/* Optional Videos Card - Amber/Orange */
.learn-more-card-videos {
  background: linear-gradient(135deg, #fff7ed 0%, white 50%);
  border-left: 4px solid #f87171;
}

.learn-more-card-videos:hover {
  border-color: rgba(248, 113, 113, 0.3);
}

.learn-more-card-videos .learn-more-card-header {
  border-bottom-color: rgba(248, 113, 113, 0.3);
}

.videos-intro {
  font-weight: var(--weight-medium);
  color: var(--color-neutral-700);
  margin-bottom: var(--space-3) !important;
}

.youtube-search-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.youtube-search-list li {
  padding-left: var(--space-4);
  position: relative;
}

.youtube-search-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-neutral-500);
}

/* YouTube search links - bold with hover/click effects */
.youtube-search-link {
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.2s ease;
  border-bottom: 2px solid transparent;
  padding-bottom: 1px;
}

.youtube-search-link:hover {
  color: var(--color-primary-dark);
  border-bottom-color: var(--color-primary-dark);
}

.youtube-search-link:active {
  transform: scale(0.98);
}

/* Legacy resource list (kept for compatibility) */
.resource-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.resource-item {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.06);
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 2px solid rgba(0, 201, 201, 0.1);
}

.resource-item:hover {
  box-shadow: 0 5px 0 rgba(0, 0, 0, 0.08), 0 8px 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-3px) scale(1.01);
  border-color: var(--color-secondary);
}

.resource-title {
  font-family: var(--font-secondary);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-primary-dark);
  margin-bottom: var(--space-2);
}

.resource-description {
  font-size: var(--text-base);
  color: var(--color-neutral-600);
  margin-bottom: var(--space-3);
}

.resource-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary);
  font-weight: var(--weight-medium);
  transition: color var(--duration-normal) var(--ease-out);
}

.resource-link:hover {
  color: var(--color-primary-dark);
}

/* ========== MOBILE RESPONSIVE ========== */

@media (max-width: 767px) {
  .activities-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .activity-card {
    min-height: 250px;
  }
  
  .level-title {
    font-size: var(--text-2xl);
  }
  
  .tabs-list {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .tab-button {
    white-space: nowrap;
    font-size: var(--text-base);
  }
}

/* ========== TABLET RESPONSIVE ========== */

@media (min-width: 768px) and (max-width: 1023px) {
  .activities-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}