/* Utility Classes */

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Text Colors */
.text-red { color: var(--color-red); }
.text-red-dark { color: var(--color-red-dark); }
.text-black { color: var(--color-black); }
.text-grey { color: var(--color-grey); }
.text-grey-dark { color: var(--color-grey-dark); }
.text-white { color: var(--color-white); }

/* Background Colors */
.bg-white { background-color: var(--color-white); }
.bg-secondary { background-color: var(--color-bg-secondary); }
.bg-red { background-color: var(--color-red); }
.bg-black { background-color: var(--color-black); }

/* Display */
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.hidden { display: none; }

/* Visibility */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Width */
.w-full { width: 100%; }
.w-auto { width: auto; }

/* Max Width */
.max-w-sm { max-width: 640px; }
.max-w-md { max-width: 768px; }
.max-w-lg { max-width: 1024px; }
.max-w-xl { max-width: 1280px; }

/* Margin Auto */
.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* Font Weight */
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* Font Size */
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-md); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }
.text-4xl { font-size: var(--font-size-4xl); }

/* Border Radius */
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: 9999px; }

/* Shadow */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-none { box-shadow: none; }

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

/* Responsive Utilities */
@media (max-width: 768px) {
  .mobile-hidden { display: none; }
  .mobile-block { display: block; }
}

@media (min-width: 769px) {
  .desktop-hidden { display: none; }
  .desktop-block { display: block; }
}