.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
@media (max-width: 768px) {
  .container { padding: 0 var(--space-4); }
}

.section {
  padding: var(--space-24) 0;
}
@media (max-width: 768px) {
  .section { padding: var(--space-16) 0; }
}

.section--sm { padding: var(--space-16) 0; }
.section--lg { padding: var(--space-32) 0; }

.section--navy {
  background: var(--color-navy);
  color: var(--color-white);
}
.section--navy h2,
.section--navy h3,
.section--navy h4,
.section--navy strong {
  color: var(--color-white);
}
.section--navy p {
  color: rgba(255,255,255,0.75);
}

.section--grey {
  background: var(--color-off-white);
}

.section--graphite {
  background: var(--color-graphite);
  color: var(--color-white);
}
.section--graphite h2,
.section--graphite h3,
.section--graphite h4,
.section--graphite strong {
  color: var(--color-white);
}
.section--graphite p {
  color: rgba(255,255,255,0.75);
}

.grid {
  display: grid;
  gap: var(--space-8);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
}

.flex { display: flex; }
.flex-center { align-items: center; justify-content: center; }
.flex-between { align-items: center; justify-content: space-between; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }