/* ============================================
   FEATURE LIST — Vertical text list + image swap
   Left: stacked items separated by lines
   Right: product screenshot that swaps on hover
   ============================================ */

.feature-list {
  padding: var(--spacing-3xl) var(--spacing-xl);
  background: var(--color-surface);
}

.feature-list__inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--spacing-3xl);
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

/* --- Left: text items --- */
.feature-list__items {
  display: flex;
  flex-direction: column;
}

.feature-list__item {
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--color-border);
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.feature-list__item:last-child {
  border-bottom: 1px solid var(--color-border);
}

/* Dim non-active items when one is active */
.feature-list__items:hover .feature-list__item:not(:hover) {
  opacity: 0.4;
}

.feature-list__item-title {
  font-family: var(--font-family-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.feature-list__item-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 480px;
}

/* --- Right: image area --- */
.feature-list__media {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 16px;
  overflow: hidden;
  background: var(--color-bg);
  box-shadow: var(--shadow-lg);
}

.feature-list__image {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  opacity: 0;
  transform: scale(0.98);
  transition: opacity 500ms ease, transform 500ms ease;
  pointer-events: none;
}

.feature-list__image.is-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.feature-list__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Placeholder backgrounds */
.feature-list__image:nth-child(1) { background: #F5F0EB; }
.feature-list__image:nth-child(2) { background: #EBF0F5; }
.feature-list__image:nth-child(3) { background: #F0F5EB; }

/* --- Mobile (<=768px) --- */
@media (max-width: 768px) {
  .feature-list {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .feature-list__inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .feature-list__media {
    aspect-ratio: 16 / 10;
    border-radius: 12px;
  }

  .feature-list__item {
    padding: var(--spacing-lg) 0;
  }

  .feature-list__item-title {
    font-size: 1.125rem;
  }

  .feature-list__item-desc {
    font-size: 0.9375rem;
  }
}