/* ============================================================
   LAYOUT UTILITIES — Carter & Associates
   Containers, sections, grid systems, spacing helpers
   ============================================================ */

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--sp-6);
}

.container--sm {
  max-width: var(--container-sm);
}

.container--lg {
  max-width: var(--container-lg);
}

/* ---- Section Spacing ---- */
.section {
  padding-block: var(--sp-20);
}

.section--lg {
  padding-block: var(--sp-32);
}

.section--sm {
  padding-block: var(--sp-12);
}

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: var(--sp-16);
}

.section-header--left {
  text-align: left;
  margin-inline: 0;
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-3);
}

.section-title {
  font-size: clamp(var(--fs-2xl), 3.5vw, var(--fs-4xl));
  color: var(--color-text-light);
  margin-bottom: var(--sp-4);
}

.section-title--dark {
  color: var(--color-text-dark);
}

.section-subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  line-height: var(--lh-loose);
}

.section-subtitle--dark {
  color: #555;
}

/* ---- Gold Divider ---- */
.gold-divider {
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  border-radius: var(--radius-full);
  margin: var(--sp-4) auto var(--sp-6);
}

.gold-divider--left {
  margin-inline: 0;
}

/* ---- Grid Utilities ---- */
.grid {
  display: grid;
  gap: var(--sp-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); }

.grid-auto-sm {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-auto-md {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

/* ---- Flex Utilities ---- */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }

.gap-2 { gap: var(--sp-2); }
.gap-4 { gap: var(--sp-4); }
.gap-6 { gap: var(--sp-6); }
.gap-8 { gap: var(--sp-8); }

/* ---- Page hero offset (accounts for fixed navbar) ---- */
.page-offset {
  padding-top: var(--navbar-height);
}

/* ---- Dark / Light section variants ---- */
.bg-dark    { background-color: var(--color-bg-dark); }
.bg-primary { background-color: var(--color-primary); }
.bg-surface { background-color: var(--color-surface); color: var(--color-text-dark); }
.bg-surface-alt { background-color: var(--color-surface-alt); color: var(--color-text-dark); }
.bg-surface-dark { background-color: var(--color-surface-dark); }

/* ---- Scroll animation base ---- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* staggered children delay */
.stagger > *:nth-child(1) { transition-delay: 0s; }
.stagger > *:nth-child(2) { transition-delay: 0.1s; }
.stagger > *:nth-child(3) { transition-delay: 0.2s; }
.stagger > *:nth-child(4) { transition-delay: 0.3s; }
.stagger > *:nth-child(5) { transition-delay: 0.4s; }
.stagger > *:nth-child(6) { transition-delay: 0.5s; }

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

@media (max-width: 768px) {
  .container { padding-inline: var(--sp-4); }
  .section { padding-block: var(--sp-12); }
  .section--lg { padding-block: var(--sp-20); }
  .section-header { margin-bottom: var(--sp-10); }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .grid-auto-md { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
}