/* ==================================================================
   METTA INDEX PAGE STYLES
   One-glance index with all chapters visible, mobile-friendly
   ================================================================== */

@import url('/js/header-footer.css');

/* ===== Hero Section ===== */
.metta-index-hero {
  padding: 2rem 1rem;
  background: linear-gradient(135deg, var(--mt-bg-secondary) 0%, var(--mt-bg-primary) 100%);
  text-align: center;
}

.metta-hero-container {
  max-width: var(--mt-maxw);
  margin: 0 auto;
}

.metta-index-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--mt-text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.metta-hero-subtitle {
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: var(--mt-text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.metta-hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ===== Chapter Grid ===== */
.metta-chapters-grid {
  padding: 2rem 1rem;
  max-width: var(--mt-maxw);
  margin: 0 auto;
}

.metta-section-title {
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  color: var(--mt-text-primary);
  text-align: center;
  margin-bottom: 0.5rem;
}

.metta-section-desc {
  text-align: center;
  color: var(--mt-text-secondary);
  margin-bottom: 2rem;
  font-size: clamp(0.85rem, 1.2vw, 0.95rem);
}

.metta-chapter-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

/* ===== Chapter Cards ===== */
.chapter-card {
  background: var(--mt-bg-primary);
  border: 1px solid var(--mt-border);
  border-radius: 12px;
  padding: 1.2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.chapter-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--mt-shadow);
  border-color: var(--mt-accent);
}

.chapter-card-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.chapter-num {
  font-size: clamp(0.7rem, 1.5vw, 0.85rem);
  color: var(--mt-text-secondary);
  font-weight: 600;
  opacity: 0.8;
}

.chapter-title {
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: var(--mt-text-primary);
  margin: 0;
  font-weight: 700;
  line-height: 1.3;
}

.chapter-subtitle {
  font-size: clamp(0.75rem, 1.2vw, 0.85rem);
  color: var(--mt-text-secondary);
  line-height: 1.4;
  margin: 0;
  flex: 1;
}

.chapter-type {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  font-size: clamp(0.6rem, 0.8vw, 0.75rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  color: rgba(255, 255, 255, 0.9);
}

/* ===== Mobile optimizations ===== */
@media (max-width: 600px) {
  .metta-chapter-list {
    grid-template-columns: 1fr;
  }

  .chapter-card {
    padding: 1rem;
  }

  .metta-hero-actions {
    justify-content: center;
  }
}

/* ===== Safari/iOS fixes ===== */
@supports (-webkit-appearance: none) {
  .chapter-card {
    -webkit-tap-highlight-color: transparent;
  }
}

/* ===== Hover/focus states for accessibility ===== */
.chapter-card-link:hover .chapter-title,
.chapter-card-link:focus-visible .chapter-title {
  color: var(--mt-accent);
}