/* Book 2: Word Families - Additional Styles */

/* Intro section */
.intro-section {
  text-align: center;
  margin: 20px 0 30px;
}

.intro-section h2 {
  color: var(--navy);
  font-size: 28px;
  margin: 0 0 10px;
  font-weight: 800;
}

.intro-text {
  color: var(--muted);
  font-size: 16px;
  margin: 0;
}

/* Word Families Grid */
.families-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 20px;
  padding-bottom: 20px;
}

.family-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px 16px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

.family-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--teal), var(--violet));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.family-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(10, 20, 30, 0.12);
}

.family-card:hover::before {
  transform: scaleX(1);
}

.family-card.highlighted {
  background: linear-gradient(135deg, rgba(107, 92, 255, 0.08), rgba(0, 180, 199, 0.08));
  transform: scale(1.05);
  box-shadow: 0 16px 36px rgba(107, 92, 255, 0.2);
}

.family-card.highlighted::before {
  transform: scaleX(1);
}

.family-name {
  font-size: 36px;
  font-weight: 800;
  color: var(--violet);
  margin: 0 0 8px;
  line-height: 1;
}

.family-example {
  font-size: 14px;
  color: var(--muted);
  text-align: center;
  line-height: 1.4;
  margin-bottom: 12px;
}

/* Play button (matching Book 1 style) */
.family-card .play-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
}

.family-card .play-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(180deg, var(--coral), #ff4d47);
  color: #fff;
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(255, 111, 97, 0.3);
  transition: transform 0.14s ease;
  padding-left: 2px;
}

.family-card .play-btn:hover {
  transform: scale(1.05);
}

.family-card .play-btn.playing {
  animation: play-pulse 1200ms infinite;
}

.family-card .btn-label {
  font-size: 11px;
  color: var(--muted);
  min-height: 14px;
  text-align: center;
}

.family-card .play-btn:focus {
  outline: 4px solid rgba(0, 180, 199, 0.12);
}

.family-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--sun);
  color: var(--navy);
  font-size: 10px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.7;
}

/* Modal styles - placeholder for future features */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 42, 74, 0.6);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--card);
  border-radius: var(--radius);
  padding: 30px;
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  position: relative;
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: none;
  border: none;
  font-size: 32px;
  color: var(--muted);
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.2s ease, color 0.2s ease;
}

.modal-close:hover {
  background: rgba(107, 92, 255, 0.1);
  color: var(--navy);
}

.modal-title {
  color: var(--navy);
  font-size: 32px;
  font-weight: 800;
  margin: 0 0 20px;
}

.modal-body {
  color: var(--navy);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-placeholder {
  text-align: center;
  color: var(--muted);
  font-style: italic;
}

/* Accessibility */
.family-card:focus {
  outline: 4px solid rgba(107, 92, 255, 0.3);
  outline-offset: 2px;
}

/* Responsive adjustments */
@media (max-width: 520px) {
  .families-grid {
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 12px;
  }

  .family-card {
    padding: 20px 12px;
    min-height: 120px;
  }

  .family-name {
    font-size: 28px;
  }

  .family-example {
    font-size: 12px;
  }

  .family-card .play-btn {
    width: 44px;
    height: 44px;
    font-size: 16px;
  }

  .intro-section h2 {
    font-size: 22px;
  }

  .modal-content {
    padding: 24px;
  }

  .modal-title {
    font-size: 24px;
  }
}

@media (min-width: 768px) {
  .families-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}