.u-text-center { text-align: center; }
.u-text-left { text-align: left; }
.u-text-right { text-align: right; }

.u-mt-0 { margin-top: 0; }
.u-mt-1 { margin-top: var(--spacing-1); }
.u-mt-2 { margin-top: var(--spacing-2); }
.u-mt-3 { margin-top: var(--spacing-3); }
.u-mt-4 { margin-top: var(--spacing-4); }

.u-mb-0 { margin-bottom: 0; }
.u-mb-1 { margin-bottom: var(--spacing-1); }
.u-mb-2 { margin-bottom: var(--spacing-2); }
.u-mb-3 { margin-bottom: var(--spacing-3); }
.u-mb-4 { margin-bottom: var(--spacing-4); }

.u-mx-auto { margin-left: auto; margin-right: auto; }

.u-pt-0 { padding-top: 0; }
.u-pb-0 { padding-bottom: 0; }

.u-hidden { display: none !important; }
.u-block { display: block; }
.u-inline { display: inline; }
.u-inline-flex { display: inline-flex; }

.u-text-primary { color: var(--color-primary-700); }
.u-text-neutral-600 { color: var(--color-neutral-600); }
.u-text-neutral-500 { color: var(--color-neutral-500); }
.u-text-white { color: var(--color-neutral-0); }

.u-bg-neutral-50 { background: var(--color-neutral-50); }
.u-bg-neutral-100 { background: var(--color-neutral-100); }
.u-bg-primary-50 { background: var(--color-primary-50); }
.u-bg-primary-700 { background: var(--color-primary-700); }

.u-font-serif { font-family: var(--font-serif); }
.u-font-sans { font-family: var(--font-sans); }

.u-font-small { font-size: 0.875rem; }
.u-font-smaller { font-size: 0.75rem; }
.u-font-large { font-size: 1.125rem; }
.u-font-larger { font-size: 1.25rem; }

.u-font-weight-normal { font-weight: 400; }
.u-font-weight-medium { font-weight: 500; }
.u-font-weight-semibold { font-weight: 600; }
.u-font-weight-bold { font-weight: 700; }

.u-leading-relaxed { line-height: 1.7; }
.u-leading-loose { line-height: 1.8; }

.u-rounded { border-radius: var(--radius-md); }
.u-rounded-lg { border-radius: var(--radius-lg); }
.u-rounded-full { border-radius: var(--radius-full); }

.u-shadow-sm { box-shadow: var(--shadow-sm); }
.u-shadow-md { box-shadow: var(--shadow-md); }
.u-shadow-lg { box-shadow: var(--shadow-lg); }

.u-flex { display: flex; }
.u-flex-col { flex-direction: column; }
.u-items-center { align-items: center; }
.u-justify-center { justify-content: center; }
.u-justify-between { justify-content: space-between; }
.u-flex-wrap { flex-wrap: wrap; }
.u-gap-1 { gap: var(--spacing-1); }
.u-gap-2 { gap: var(--spacing-2); }
.u-gap-3 { gap: var(--spacing-3); }

.u-list-unstyled { list-style: none; margin: 0; padding: 0; }
.u-text-decoration-none { text-decoration: none; }

.u-maxw-narrow { max-width: var(--container-narrow); }
.u-maxw-wide { max-width: var(--container-wide); }

.u-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;
}

.u-w-full { width: 100%; }
.u-h-full { height: 100%; }

.u-min-vh-60 { min-height: 60vh; }

@media (max-width: 768px) {
  .u-md-hidden { display: none !important; }
  .u-md-block { display: block; }
  .u-md-text-center { text-align: center; }
}

@media (min-width: 769px) {
  .u-sm-hidden { display: none !important; }
}

@keyframes u-fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.u-animate-fade-in { animation: u-fade-in 0.6s ease forwards; }

@keyframes u-fade-in-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.u-animate-fade-in-up { animation: u-fade-in-up 0.7s ease forwards; }

.u-animate-delay-1 { animation-delay: 0.1s; animation-fill-mode: both; }
.u-animate-delay-2 { animation-delay: 0.2s; animation-fill-mode: both; }
.u-animate-delay-3 { animation-delay: 0.3s; animation-fill-mode: both; }
.u-animate-delay-4 { animation-delay: 0.4s; animation-fill-mode: both; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}