/* Lessons Preview Cards (index.html) */
.lessons-preview .grid--3 .card {
  text-align: center;
}

.lessons-preview .card__icon {
  margin-left: auto;
  margin-right: auto;
}

/* Lesson Tier Sections (lezioni.html) */
.lesson-tier {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  position: relative;
}

.lesson-tier:nth-child(even) {
  background-color: var(--color-bg-alt);
}

.lesson-tier .grid {
  align-items: center;
  gap: var(--space-3xl);
}

.lesson-tier__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  background: var(--color-bg-alt);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
}

.lesson-tier:nth-child(even) .lesson-tier__icon {
  background: white;
}

.lesson-tier__icon svg {
  width: 140px;
  height: 140px;
}

/* Mini Chessboard */
.lesson-tier__board {
  display: flex;
  align-items: center;
  justify-content: center;
}

.mini-board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  width: 280px;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 2px solid var(--color-border);
  gap: 0;
}

.sq {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  line-height: 1;
  user-select: none;
  aspect-ratio: 1;
}

.sq--l {
  background: #f0d9b5;
}

.sq--d {
  background: #b58863;
}

.lesson-tier__content {
  max-width: 600px;
}

.lesson-tier__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent-warm);
  margin-bottom: var(--space-sm);
}

.lesson-tier__label::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--color-accent-warm);
}

.lesson-tier__title {
  margin-bottom: var(--space-xs);
}

.lesson-tier__subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-light);
  font-style: italic;
  margin-bottom: var(--space-xl);
}

.lesson-tier__text {
  margin-bottom: var(--space-xl);
}

.lesson-tier__text p {
  margin-bottom: var(--space-md);
}

.lesson-tier__ideal {
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent-warm);
}

.lesson-tier:nth-child(even) .lesson-tier__ideal {
  background: white;
}

.lesson-tier__ideal h4 {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

/* Lessons Intro */
.lessons-intro-section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-sm);
}

.lessons-intro {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.lessons-intro p {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-style: italic;
  line-height: var(--lh-loose);
  color: var(--color-text-light);
  position: relative;
}

.lessons-intro p::before,
.lessons-intro p::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-accent-warm);
  margin: 0 auto var(--space-lg);
}

.lessons-intro p::after {
  margin: var(--space-lg) auto 0;
}

/* CTA Banner */
.cta-banner {
  background: var(--gradient-dark);
  color: white;
  text-align: center;
  padding: var(--space-5xl) 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  pointer-events: none;
}

.cta-banner .container {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  color: white;
  margin-bottom: var(--space-lg);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-2xl);
  font-size: var(--fs-md);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner .btn {
  background: var(--color-accent-warm);
  color: var(--color-text-inverse);
  border-color: var(--color-accent-warm);
}

.cta-banner .btn:hover {
  background: var(--color-accent-warm-light);
  border-color: var(--color-accent-warm-light);
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .lesson-tier .grid {
    grid-template-columns: 1fr 2fr;
  }

  .lesson-tier--alt .grid {
    grid-template-columns: 2fr 1fr;
  }

  .lesson-tier--alt .lesson-tier__icon,
  .lesson-tier--alt .lesson-tier__board {
    order: 2;
  }

  .lesson-tier--alt .lesson-tier__content {
    order: 1;
  }
}