/* Utility Classes for Common Patterns */

/* === LAYOUT UTILITIES === */

/* Flexbox Utilities */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

/* Flex Alignment */
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

/* Flex Grow/Shrink */
.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }
.grow { flex-grow: 1; }
.shrink { flex-shrink: 1; }
.shrink-0 { flex-shrink: 0; }

/* Grid Utilities */
.grid { display: grid; }
.inline-grid { display: inline-grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-auto { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* Gap Utilities */
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* === SPACING UTILITIES === */

/* Margin */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }
.m-auto { margin: auto; }

/* 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-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

/* 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-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Padding */
.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

/* Padding X (horizontal) */
.px-0 { padding-left: 0; padding-right: 0; }
.px-1 { padding-left: var(--space-1); padding-right: var(--space-1); }
.px-2 { padding-left: var(--space-2); padding-right: var(--space-2); }
.px-3 { padding-left: var(--space-3); padding-right: var(--space-3); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }

/* Padding Y (vertical) */
.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: var(--space-1); padding-bottom: var(--space-1); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }

/* === TEXT UTILITIES === */

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

/* Font Sizes */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-md { 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); }

/* Font Weights */
.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

/* Line Heights */
.leading-tight { line-height: var(--line-height-tight); }
.leading-normal { line-height: var(--line-height-normal); }
.leading-relaxed { line-height: var(--line-height-relaxed); }
.leading-loose { line-height: var(--line-height-loose); }

/* Text Colors */
.text-primary { color: var(--theme-text-primary); }
.text-secondary { color: var(--theme-text-secondary); }
.text-tertiary { color: var(--theme-text-tertiary); }
.text-brand { color: var(--color-ivey-green); }
.text-accent { color: var(--color-western-purple); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.text-warning { color: var(--color-warning); }
.text-info { color: var(--color-info); }

/* === BACKGROUND UTILITIES === */

/* Background Colors */
.bg-primary { background-color: var(--theme-bg-primary); }
.bg-secondary { background-color: var(--theme-bg-secondary); }
.bg-tertiary { background-color: var(--theme-bg-tertiary); }
.bg-brand { background-color: var(--color-ivey-green); }
.bg-accent { background-color: var(--color-western-purple); }
.bg-success { background-color: var(--color-success); }
.bg-error { background-color: var(--color-error); }
.bg-warning { background-color: var(--color-warning); }
.bg-info { background-color: var(--color-info); }
.bg-transparent { background-color: transparent; }

/* === BORDER UTILITIES === */

/* Border */
.border { border: var(--border-thin) solid var(--theme-border-primary); }
.border-0 { border: 0; }
.border-t { border-top: var(--border-thin) solid var(--theme-border-primary); }
.border-b { border-bottom: var(--border-thin) solid var(--theme-border-primary); }
.border-l { border-left: var(--border-thin) solid var(--theme-border-primary); }
.border-r { border-right: var(--border-thin) solid var(--theme-border-primary); }

/* Border Radius */
.rounded-none { border-radius: var(--radius-none); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-base); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* === SHADOW UTILITIES === */

.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--theme-shadow-light); }
.shadow { box-shadow: var(--theme-shadow-medium); }
.shadow-lg { box-shadow: var(--theme-shadow-heavy); }

/* === POSITION UTILITIES === */

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.static { position: static; }

/* === DISPLAY UTILITIES === */

.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.hidden { display: none; }

/* === OVERFLOW UTILITIES === */

.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }
.overflow-visible { overflow: visible; }
.overflow-scroll { overflow: scroll; }

/* === OPACITY UTILITIES === */

.opacity-0 { opacity: 0; }
.opacity-25 { opacity: 0.25; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* === CURSOR UTILITIES === */

.cursor-auto { cursor: auto; }
.cursor-default { cursor: default; }
.cursor-pointer { cursor: pointer; }
.cursor-wait { cursor: wait; }
.cursor-text { cursor: text; }
.cursor-move { cursor: move; }
.cursor-not-allowed { cursor: not-allowed; }

/* === TRANSFORM UTILITIES === */

.transform { transform: var(--transform); }
.scale-0 { --transform: scale(0); }
.scale-50 { --transform: scale(0.5); }
.scale-75 { --transform: scale(0.75); }
.scale-90 { --transform: scale(0.9); }
.scale-95 { --transform: scale(0.95); }
.scale-100 { --transform: scale(1); }
.scale-105 { --transform: scale(1.05); }
.scale-110 { --transform: scale(1.1); }
.scale-125 { --transform: scale(1.25); }

/* === TRANSITION UTILITIES === */

.transition-none { transition: none; }
.transition-all { transition: all var(--duration-normal) var(--ease-in-out); }
.transition-colors { 
  transition: color var(--duration-normal) var(--ease-in-out),
              background-color var(--duration-normal) var(--ease-in-out),
              border-color var(--duration-normal) var(--ease-in-out); 
}
.transition-opacity { transition: opacity var(--duration-normal) var(--ease-in-out); }
.transition-transform { transition: transform var(--duration-normal) var(--ease-in-out); }

/* Duration Modifiers */
.duration-fast { transition-duration: var(--duration-fast); }
.duration-normal { transition-duration: var(--duration-normal); }
.duration-slow { transition-duration: var(--duration-slow); }

/* === ACCESSIBILITY UTILITIES === */

/* 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: 0;
}

/* Focus Visible */
.focus-visible:focus-visible {
  outline: 2px solid var(--color-turquoise);
  outline-offset: 2px;
}

/* === RESPONSIVE UTILITIES === */

/* Show/Hide at breakpoints */
@media (max-width: 767px) {
  .hidden-mobile { display: none !important; }
}

@media (min-width: 768px) {
  .hidden-tablet { display: none !important; }
  .show-tablet { display: block !important; }
}

@media (min-width: 1024px) {
  .hidden-desktop { display: none !important; }
  .show-desktop { display: block !important; }
}

/* === COMPONENT UTILITIES === */

/* Container */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--layout-padding-mobile);
  padding-right: var(--layout-padding-mobile);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
    padding-left: var(--layout-padding-tablet);
    padding-right: var(--layout-padding-tablet);
  }
}

@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
    padding-left: var(--layout-padding-desktop);
    padding-right: var(--layout-padding-desktop);
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Button Base */
.btn-base {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-in-out);
  user-select: none;
  white-space: nowrap;
}

.btn-base:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Input Base */
.input-base {
  display: block;
  width: 100%;
  padding: var(--input-padding-y) var(--input-padding-x);
  border: var(--input-border-width) solid var(--theme-border-primary);
  border-radius: var(--radius-base);
  background-color: var(--theme-bg-primary);
  color: var(--theme-text-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  transition: border-color var(--duration-normal) var(--ease-in-out),
              box-shadow var(--duration-normal) var(--ease-in-out);
}

.input-base:focus {
  outline: none;
  border-color: var(--color-turquoise);
  box-shadow: 0 0 0 var(--input-focus-ring-width) 
              rgba(var(--color-turquoise-rgb), var(--input-focus-ring-opacity));
}

/* Card Base */
.card-base {
  background-color: var(--theme-bg-primary);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  padding: var(--card-padding);
}