/* ============ SCROLL FEATURES SECTION ============ */
.scroll-features-section {
  position: relative;
  height: 200vh; 
  padding: 0;
}

.scroll-features-sticky {
  position: sticky;
  top: 0;
  height: 100vh; 
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-top: 10rem;
}

.scroll-features-header {
  text-align: center;
  flex-shrink: 0;
  z-index: 2;
  position: relative;
}

.scroll-features-viewport {
  position: relative;
  width: 100%;
  flex: 1;
}

.scroll-feature-item {
  position: absolute;
  top: 45%;
  left: 50%;
  transform: translate(-50%, calc(-50% + 40px));
  opacity: 0;
  text-align: center;
  width: 100%;
  max-width: 580px;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  padding: 3.1rem 1rem;
}

.scroll-feature-item.active {
  transform: translate(-50%, -50%);
  opacity: 1;
  pointer-events: auto;
}

.scroll-feature-item.past {
  transform: translate(-50%, calc(-50% - 40px));
  opacity: 0;
}

.sf-icon {
  width: 64px;
  height: 64px;
  background: #111814;
  border: 1px solid #1a241e;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin: 0 auto 2rem;
}

.sf-icon svg {
  width: 28px;
  height: 28px;
}

.sf-title {
  font-family: var(--sans);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.sf-desc {
  font-size: 1.05rem;
  color: var(--fg-3);
  line-height: 1.6;
}