/* ============================================================================
   PTCARGO · shared/css/utilities.css   (Design System · Layer 4 of 4)
   ----------------------------------------------------------------------------
   Single-purpose helper classes, keyed to the spacing tokens. Loaded LAST so
   a utility can nudge any component. No new colors are introduced here.
   Phase 1 does NOT touch any .html — utilities wait for batch migration.
   ========================================================================== */

/* ---- margin-top ---------------------------------------------------------- */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }

/* ---- margin-bottom ------------------------------------------------------- */
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }

/* ---- padding ------------------------------------------------------------- */
.p-0 { padding: 0; }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.px-4 { padding-inline: var(--space-4); }
.py-4 { padding-block: var(--space-4); }

/* ---- gap ----------------------------------------------------------------- */
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

/* ---- flexbox helpers ----------------------------------------------------- */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1 1 0%; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

/* ---- text ---------------------------------------------------------------- */
.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }
.text-muted  { color: var(--color-muted); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-danger  { color: var(--color-danger); }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.text-sm { font-size: var(--font-sm); }
.text-lg { font-size: var(--font-lg); }

/* ---- sizing -------------------------------------------------------------- */
.w-full { width: 100%; }
.h-full { height: 100%; }

/* ---- radius -------------------------------------------------------------- */
.rounded    { border-radius: var(--radius-md); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-pill { border-radius: var(--radius-pill); }

/* ---- visibility ---------------------------------------------------------- */
.hidden { display: none !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;
}