/* landing-page/css/curriculum.css */
#curriculo {
  background-color: var(--color-bg);
}

/* Accordion rows */
.curriculum__accordion {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.curriculum__accordion-row {
  /* state handled by .is-open class via JS */
}

.curriculum__accordion-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s ease;
}

.curriculum__accordion-header:hover {
  border-color: rgba(245, 197, 24, 0.4);
}

.curriculum__accordion-row.is-open .curriculum__accordion-header {
  border-color: var(--color-accent);
  border-bottom-color: transparent;
}

.curriculum__act-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

.curriculum__act-name span {
  color: var(--color-text-muted);
  font-weight: 400;
  font-size: 0.9rem;
  margin-left: 12px;
  font-family: var(--font-body);
}

.curriculum__accordion-row.is-open .curriculum__act-name {
  color: var(--color-accent);
}

.curriculum__toggle-icon {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  transition: transform 0.3s ease, color 0.2s ease;
  line-height: 1;
  font-style: normal;
}

.curriculum__accordion-row.is-open .curriculum__toggle-icon {
  transform: rotate(180deg);
  color: var(--color-accent);
}

/* Accordion content */
.curriculum__accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0, 1, 0, 1);
  border-left: 1px solid var(--color-accent);
  border-right: 1px solid var(--color-accent);
  border-bottom: 1px solid var(--color-border);
}

.curriculum__accordion-row.is-open .curriculum__accordion-content {
  max-height: 600px;
  transition: max-height 0.6s ease-in-out;
}

/* Minimal gold grid inside accordion — 1px gap = editorial thin lines */
.curriculum__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background-color: var(--color-border);
  padding: 0;
}

.curriculum__card {
  background: #1a1a1a;
  padding: 36px 28px;
  transition: background-color 0.3s ease;
  position: relative;
}

.curriculum__card:hover {
  background: #201f1f;
}

.curriculum__card:hover .curriculum__number {
  transform: translateY(-4px);
  text-shadow: 0 0 20px rgba(245, 197, 24, 0.3);
}

.curriculum__number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 20px;
  display: block;
  transition: transform 0.4s ease;
}

.curriculum__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
}

/* For acts with fewer than 4 lessons (span adjustment) */
.curriculum__grid--2col {
  grid-template-columns: repeat(2, 1fr);
}

.curriculum__grid--3col {
  grid-template-columns: repeat(3, 1fr);
}

.curriculum__footer {
  text-align: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-text-muted);
  margin-top: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
}