/* ============================================
   SECTION: Differentiation — 2026 refresh
   Asymmetric feature grid + portrait visual + quote card
============================================ */

.diff {
  background:
    linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg-soft) 100%);
  position: relative;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.diff__layout {
  display: grid;
  gap: var(--space-9);
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) {
  .diff__layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: var(--space-11);
    align-items: start;
  }
}

/* ---- Feature grid ---- */
.diff__features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 640px) {
  .diff__features { grid-template-columns: repeat(2, 1fr); }
}

.diff-feature {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--r-xl);
  padding: var(--space-6);
  transition:
    transform var(--t-med),
    box-shadow var(--t-med),
    border-color var(--t-med),
    background var(--t-med);
  position: relative;
  overflow: hidden;
  contain: layout paint;
}
.diff-feature:nth-child(2) .diff-feature__icon { background: var(--color-blue-quiet); }
.diff-feature:nth-child(3) .diff-feature__icon { background: var(--color-clay-soft); }
.diff-feature::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 50%, rgba(47, 79, 151, 0.08) 100%);
  opacity: 0;
  transition: opacity var(--t-med) var(--ease-out);
  pointer-events: none;
}
@media (hover: hover) {
  .diff-feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--sh-3);
    border-color: var(--color-border-strong);
    background: var(--color-surface);
  }
  .diff-feature:hover::before { opacity: 1; }
  .diff-feature:hover .diff-feature__icon { transform: scale(1.05); background: var(--color-accent); }
}
.diff-feature__icon {
  width: 48px; height: 48px;
  background: var(--color-accent-soft);
  color: var(--color-primary);
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  transition: transform var(--t-med), background var(--t-med);
  position: relative;
}
.diff-feature__icon::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, transparent 60%);
  pointer-events: none;
}
.diff-feature__icon .icon { width: 22px; height: 22px; }
.diff-feature__title {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  letter-spacing: var(--tracking-normal);
  line-height: 1.3;
}
.diff-feature__text {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ---- Right column ---- */
.diff__right {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
.diff__visual {
  position: relative;
  border-radius: var(--r-2xl);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-accent-soft) 0%, var(--color-bg-sand) 100%);
  box-shadow: var(--sh-3);
}
.diff__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 52%;
}
@media (max-width: 767px) {
  .diff__visual { aspect-ratio: 4 / 5; }
}
.diff__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

/* Quote card overlap */
.diff__quote {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  border-radius: var(--r-xl);
  padding: var(--space-7);
  position: relative;
  box-shadow: var(--sh-4);
  margin-top: -56px;
  margin-left: var(--space-4);
  margin-right: var(--space-4);
  z-index: 1;
}
@media (min-width: 1024px) {
  .diff__quote {
    margin-top: -72px;
    margin-left: -40px;
    margin-right: var(--space-7);
  }
}
.diff__quote::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.diff__quote-icon {
  width: 30px; height: 30px;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.diff__quote-text {
  font-family: var(--font-headline);
  font-style: italic;
  font-size: 1.375rem;
  font-weight: var(--fw-semibold);
  line-height: 1.4;
  color: var(--color-text-on-primary);
  letter-spacing: 0;
}
.diff__quote-attrib {
  margin-top: var(--space-5);
  font-size: var(--fs-tagline);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}