/* =========================================================
   AHA COMFORTS — utilities.css
   Scroll-reveal system + small helpers.
   ========================================================= */

.text-center { text-align: center; }
.mt-0 { margin-top: 0 !important; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Scroll-reveal: elements fade + rise into place via IntersectionObserver
   (see animations.js). Reduced-motion users see content immediately —
   handled in base.css global media query, which disables the transition. */

[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 900ms cubic-bezier(0.22,1,0.36,1),
              transform 900ms cubic-bezier(0.22,1,0.36,1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="fade"] { transform: none; }

[data-reveal-group] > * { transition-delay: calc(var(--i, 0) * 90ms); }

/* Parallax layer helper, transform applied via JS on scroll */
[data-parallax] { will-change: transform; }

.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-champagne), transparent);
}

.divider--vertical {
  width: 1px;
  align-self: stretch;
  background: var(--color-champagne);
}

.tag-gold {
  display: inline-block;
  font-family: var(--font-button);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold-deep);
  background: var(--color-gold-glow);
  padding: 0.32rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(233, 220, 192, 0.65);
}

.stagger-in > * { opacity: 0; }