/* ============================================
   CURRICULUM SECTION
   Dark navy bg, 2-col levels with module timeline
   ============================================ */

.curriculum {
  position: relative;
  background: var(--color-midnight-indigo);
  color: #fff;
  padding: var(--spacing-section) 0;
  overflow: hidden;
}

.curriculum__inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--margin);
}


/* --- Sidebar Label --- */
.curriculum__sidebar-label {
  position: absolute;
  left: clamp(12px, 2vw, 32px);
  top: 50%;
  transform: rotate(180deg);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.06);
  z-index: 1;
  user-select: none;
}


/* --- Decorative --- */
.curriculum__shapes {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.curriculum__circle {
  position: absolute;
  width: clamp(120px, 16vw, 240px);
  aspect-ratio: 1;
  background: var(--color-teal-blue);
  border-radius: 50%;
  top: -4%;
  right: -3%;
  opacity: 0.04;
}

.curriculum__triangle {
  position: absolute;
  width: 0;
  height: 0;
  border-left: clamp(50px, 8vw, 120px) solid transparent;
  border-right: clamp(50px, 8vw, 120px) solid transparent;
  border-bottom: clamp(80px, 14vw, 200px) solid var(--color-lime-green);
  bottom: -2%;
  left: 8%;
  opacity: 0.04;
}


/* --- Section Opener --- */
.curriculum__opener {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: end;
  margin-bottom: var(--spacing-xxl);
}

.curriculum__title-col {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.curriculum__label {
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-teal-blue);
}

.curriculum__headline {
  display: flex;
  flex-direction: column;
}

.curriculum__headline span {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: clamp(48px, 9vw, 110px);
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: #fff;
}

.curriculum__intro-col {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
}

.curriculum__lead {
  font-family: var(--font-sub);
  font-weight: var(--fw-medium);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.3;
  color: var(--color-teal-blue);
}

.curriculum__body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
  max-width: 480px;
}


/* --- Two-Column Levels --- */
.curriculum__levels {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}


/* --- Level Card --- */
.curriculum__level {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-card);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.curriculum__level--advanced {
  border-color: rgba(10, 158, 157, 0.15);
}

.curriculum__level-header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.curriculum__level-badge {
  display: inline-block;
  width: fit-content;
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-teal-blue);
  color: #fff;
}

.curriculum__level-badge--adv {
  background: var(--color-teal-blue);
  color: #fff;
}

.curriculum__level-title {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.15;
  color: #fff;
}

.curriculum__level-desc {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}


/* --- Final Output Highlight --- */
.curriculum__level-output {
  background: rgba(10, 158, 157, 0.08);
  border-left: 3px solid var(--color-teal-blue);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 0 8px 8px 0;
}

.curriculum__output-label {
  display: block;
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-teal-blue);
  margin-bottom: 4px;
}

.curriculum__level-output p {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
}


/* --- Module Timeline --- */
.curriculum__modules {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: none;
  list-style: none;
}

.curriculum__module {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition-fast), padding-left var(--transition-fast);
}

.curriculum__module:last-child {
  border-bottom: none;
}

.curriculum__module:hover {
  background: rgba(255, 255, 255, 0.03);
  padding-left: 8px;
}

.curriculum__module-num {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.2);
  min-width: 28px;
}

.curriculum__module-name {
  font-family: var(--font-body);
  font-weight: var(--fw-regular);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}


/* --- Tech Tags --- */
.curriculum__tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: var(--spacing-xs);
}

.curriculum__tag {
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: 12px;
  letter-spacing: 0.02em;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(10, 158, 157, 0.15);
  color: var(--color-teal-blue);
}

.curriculum__level--advanced .curriculum__tag {
  background: rgba(10, 158, 157, 0.15);
  color: var(--color-teal-blue);
}


/* --- Progression Arrow --- */
.curriculum__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--spacing-xxl);
  color: rgba(255, 255, 255, 0.2);
}

.curriculum__arrow svg {
  width: 32px;
  height: 100px;
}


/* --- Responsive --- */
@media (max-width: 1024px) {
  .curriculum__opener {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .curriculum__levels {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .curriculum__arrow {
    padding-top: 0;
    transform: rotate(90deg);
  }

  .curriculum__arrow svg {
    width: 24px;
    height: 64px;
  }

  .curriculum__sidebar-label {
    display: none;
  }
}

@media (max-width: 768px) {
  .curriculum {
    padding: var(--spacing-xxl) 0;
  }

  .curriculum__level {
    padding: var(--spacing-md);
  }

  .curriculum__headline span {
    font-size: clamp(40px, 14vw, 64px);
  }

  .curriculum__arrow {
    display: none;
  }
}