.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 5vw, 3rem);
}

section {
  padding: clamp(4rem, 10vh, 8rem) 0;
}

.section-header {
  margin-bottom: 48px;
}

/* Scroll-entry animation system */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Hero entry animation */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-fade-in {
  animation: fadeUp 0.6s ease forwards;
  opacity: 0;
}