/* ============================================================
   ZERO DRIVER — Utilities
   ============================================================ */

/* ── CONTAINER ───────────────────────────────────────────── */
.zd-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-margin-desktop);
}

@media (max-width: 767px) {
  .zd-container {
    padding: 0 var(--space-margin-mobile);
  }
}

/* ── SECTION PADDING ─────────────────────────────────────── */
.zd-section {
  padding: var(--space-xl) 0;
}

.zd-section--lg {
  padding: 6rem 0;
}

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

/* ── GRID ────────────────────────────────────────────────── */
.zd-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

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

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

/* ── TEXT ALIGN ──────────────────────────────────────────── */
.zd-text-center { text-align: center; }
.zd-text-left   { text-align: left; }

/* ── DISPLAY ─────────────────────────────────────────────── */
.zd-flex        { display: flex; }
.zd-flex-center { display: flex; align-items: center; justify-content: center; }
.zd-flex-between{ display: flex; align-items: center; justify-content: space-between; }
.zd-flex-col    { display: flex; flex-direction: column; }
.zd-gap-sm      { gap: var(--space-sm); }
.zd-gap-md      { gap: var(--space-md); }
.zd-gap-lg      { gap: var(--space-lg); }

/* ── IMAGES ──────────────────────────────────────────────── */
.zd-img-grayscale {
  filter: grayscale(1);
  transition: filter var(--transition-image);
}

.zd-img-grayscale:hover {
  filter: grayscale(0);
}

.zd-img-hero {
  filter: grayscale(1) brightness(0.6);
}

/* ── SECTION HEADING BLOCK ───────────────────────────────── */
.zd-section-heading {
  margin-bottom: var(--space-xl);
}

.zd-section-heading--center {
  text-align: center;
}

.zd-section-heading h2 {
  font-family: var(--font-display);
  font-size: var(--text-headline-lg);
  font-weight: var(--weight-regular);
  color: var(--color-text);
  line-height: var(--leading-headline);
  letter-spacing: var(--tracking-tight);
  margin-bottom: 0.75rem;
}

.zd-section-heading p {
  font-size: var(--text-body-lg);
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
}

/* ── VISIBILITY HELPERS ──────────────────────────────────── */
.zd-hide-mobile  { display: block; }
.zd-show-mobile  { display: none; }

@media (max-width: 767px) {
  .zd-hide-mobile { display: none; }
  .zd-show-mobile { display: block; }
}

/* ── GOLD RULE ───────────────────────────────────────────── */
.zd-rule {
  width: 6rem;
  height: 1px;
  background: var(--color-gold);
  opacity: 0.5;
  margin: 1rem auto 0;
  display: block;
}

/* ── PULSING RING (map / coverage) ──────────────────────── */
@keyframes zd-pulse-ring {
  0%   { transform: scale(1);   opacity: 0.6; }
  100% { transform: scale(1.15); opacity: 0; }
}

.zd-pulse-ring {
  border: 1px solid var(--color-gold-20);
  border-radius: 50%;
  animation: zd-pulse-ring 2s ease-out infinite;
}