/**
 * Utility Classes - Modern Design
 *
 * Atomic CSS utilities following modern design system
 * Clean, functional, and consistent aesthetic
 *
 * @version 5.0.0
 * @theme Dark
 */

/* =============================================================================
   Display & Layout
   ============================================================================= */

/* Display */
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-grid { display: grid; }
.d-none { display: none; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.flex-1 { flex: 1; }
.flex-auto { flex: auto; }
.flex-none { flex: none; }

/* Grid Template Columns */
.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-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-7 { grid-template-columns: repeat(7, minmax(0, 1fr)); }
.grid-cols-8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
.grid-cols-9 { grid-template-columns: repeat(9, minmax(0, 1fr)); }
.grid-cols-10 { grid-template-columns: repeat(10, minmax(0, 1fr)); }
.grid-cols-11 { grid-template-columns: repeat(11, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.grid-cols-none { grid-template-columns: none; }

/* Grid Template Rows */
.grid-rows-1 { grid-template-rows: repeat(1, minmax(0, 1fr)); }
.grid-rows-2 { grid-template-rows: repeat(2, minmax(0, 1fr)); }
.grid-rows-3 { grid-template-rows: repeat(3, minmax(0, 1fr)); }
.grid-rows-4 { grid-template-rows: repeat(4, minmax(0, 1fr)); }
.grid-rows-5 { grid-template-rows: repeat(5, minmax(0, 1fr)); }
.grid-rows-6 { grid-template-rows: repeat(6, minmax(0, 1fr)); }
.grid-rows-none { grid-template-rows: none; }

/* Grid Column Span */
.col-auto { grid-column: auto; }
.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-5 { grid-column: span 5 / span 5; }
.col-span-6 { grid-column: span 6 / span 6; }
.col-span-7 { grid-column: span 7 / span 7; }
.col-span-8 { grid-column: span 8 / span 8; }
.col-span-9 { grid-column: span 9 / span 9; }
.col-span-10 { grid-column: span 10 / span 10; }
.col-span-11 { grid-column: span 11 / span 11; }
.col-span-12 { grid-column: span 12 / span 12; }
.col-span-full { grid-column: 1 / -1; }

/* Grid Row Span */
.row-auto { grid-row: auto; }
.row-span-1 { grid-row: span 1 / span 1; }
.row-span-2 { grid-row: span 2 / span 2; }
.row-span-3 { grid-row: span 3 / span 3; }
.row-span-4 { grid-row: span 4 / span 4; }
.row-span-5 { grid-row: span 5 / span 5; }
.row-span-6 { grid-row: span 6 / span 6; }
.row-span-full { grid-row: 1 / -1; }

/* Grid Auto Flow */
.grid-flow-row { grid-auto-flow: row; }
.grid-flow-col { grid-auto-flow: column; }
.grid-flow-dense { grid-auto-flow: dense; }
.grid-flow-row-dense { grid-auto-flow: row dense; }
.grid-flow-col-dense { grid-auto-flow: column dense; }

/* Grid Auto Columns */
.auto-cols-auto { grid-auto-columns: auto; }
.auto-cols-min { grid-auto-columns: min-content; }
.auto-cols-max { grid-auto-columns: max-content; }
.auto-cols-fr { grid-auto-columns: minmax(0, 1fr); }

/* Grid Auto Rows */
.auto-rows-auto { grid-auto-rows: auto; }
.auto-rows-min { grid-auto-rows: min-content; }
.auto-rows-max { grid-auto-rows: max-content; }
.auto-rows-fr { grid-auto-rows: minmax(0, 1fr); }

/* Justify Content */
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

/* Align Items */
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.items-stretch { align-items: stretch; }

/* Align Self */
.self-start { align-self: flex-start; }
.self-end { align-self: flex-end; }
.self-center { align-self: center; }
.self-stretch { align-self: stretch; }

/* Gap */
.gap-0 { gap: 0; }
.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-5 { gap: var(--spacing-5); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }
.gap-10 { gap: var(--spacing-10); }
.gap-12 { gap: var(--spacing-12); }
.gap-16 { gap: var(--spacing-16); }

/* Gap X (horizontal) */
.gap-x-0 { column-gap: 0; }
.gap-x-1 { column-gap: var(--spacing-1); }
.gap-x-2 { column-gap: var(--spacing-2); }
.gap-x-3 { column-gap: var(--spacing-3); }
.gap-x-4 { column-gap: var(--spacing-4); }
.gap-x-5 { column-gap: var(--spacing-5); }
.gap-x-6 { column-gap: var(--spacing-6); }
.gap-x-8 { column-gap: var(--spacing-8); }

/* Gap Y (vertical) */
.gap-y-0 { row-gap: 0; }
.gap-y-1 { row-gap: var(--spacing-1); }
.gap-y-2 { row-gap: var(--spacing-2); }
.gap-y-3 { row-gap: var(--spacing-3); }
.gap-y-4 { row-gap: var(--spacing-4); }
.gap-y-5 { row-gap: var(--spacing-5); }
.gap-y-6 { row-gap: var(--spacing-6); }
.gap-y-8 { row-gap: var(--spacing-8); }

/* Space Between - Apply margin to children (Tailwind-style) */
.space-x-0 > * + * { margin-left: 0; }
.space-x-1 > * + * { margin-left: var(--spacing-1); }
.space-x-2 > * + * { margin-left: var(--spacing-2); }
.space-x-3 > * + * { margin-left: var(--spacing-3); }
.space-x-4 > * + * { margin-left: var(--spacing-4); }
.space-x-5 > * + * { margin-left: var(--spacing-5); }
.space-x-6 > * + * { margin-left: var(--spacing-6); }
.space-x-8 > * + * { margin-left: var(--spacing-8); }

.space-y-0 > * + * { margin-top: 0; }
.space-y-1 > * + * { margin-top: var(--spacing-1); }
.space-y-2 > * + * { margin-top: var(--spacing-2); }
.space-y-3 > * + * { margin-top: var(--spacing-3); }
.space-y-4 > * + * { margin-top: var(--spacing-4); }
.space-y-5 > * + * { margin-top: var(--spacing-5); }
.space-y-6 > * + * { margin-top: var(--spacing-6); }
.space-y-8 > * + * { margin-top: var(--spacing-8); }

/* Space Reverse - For RTL layouts */
.space-x-reverse > * + * { margin-left: 0; margin-right: calc(var(--spacing, 0) * 1); }
.space-y-reverse > * + * { margin-top: 0; margin-bottom: calc(var(--spacing, 0) * 1); }

/* =============================================================================
   Spacing
   ============================================================================= */

/* Margin */
.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-1); }
.m-2 { margin: var(--spacing-2); }
.m-3 { margin: var(--spacing-3); }
.m-4 { margin: var(--spacing-4); }
.m-5 { margin: var(--spacing-5); }
.m-6 { margin: var(--spacing-6); }
.m-8 { margin: var(--spacing-8); }
.m-10 { margin: var(--spacing-10); }
.m-12 { margin: var(--spacing-12); }
.m-16 { margin: var(--spacing-16); }
.m-auto { margin: auto; }

.mx-0 { margin-left: 0; margin-right: 0; }
.mx-1 { margin-left: var(--spacing-1); margin-right: var(--spacing-1); }
.mx-2 { margin-left: var(--spacing-2); margin-right: var(--spacing-2); }
.mx-3 { margin-left: var(--spacing-3); margin-right: var(--spacing-3); }
.mx-4 { margin-left: var(--spacing-4); margin-right: var(--spacing-4); }
.mx-auto { margin-left: auto; margin-right: auto; }

.my-0 { margin-top: 0; margin-bottom: 0; }
.my-1 { margin-top: var(--spacing-1); margin-bottom: var(--spacing-1); }
.my-2 { margin-top: var(--spacing-2); margin-bottom: var(--spacing-2); }
.my-3 { margin-top: var(--spacing-3); margin-bottom: var(--spacing-3); }
.my-4 { margin-top: var(--spacing-4); margin-bottom: var(--spacing-4); }
.my-5 { margin-top: var(--spacing-5); margin-bottom: var(--spacing-5); }
.my-6 { margin-top: var(--spacing-6); margin-bottom: var(--spacing-6); }
.my-8 { margin-top: var(--spacing-8); margin-bottom: var(--spacing-8); }
.my-10 { margin-top: var(--spacing-10); margin-bottom: var(--spacing-10); }
.my-12 { margin-top: var(--spacing-12); margin-bottom: var(--spacing-12); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-5 { margin-top: var(--spacing-5); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-10 { margin-top: var(--spacing-10); }
.mt-12 { margin-top: var(--spacing-12); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-5 { margin-bottom: var(--spacing-5); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-10 { margin-bottom: var(--spacing-10); }
.mb-12 { margin-bottom: var(--spacing-12); }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: var(--spacing-1); }
.ml-2 { margin-left: var(--spacing-2); }
.ml-3 { margin-left: var(--spacing-3); }
.ml-4 { margin-left: var(--spacing-4); }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: var(--spacing-1); }
.mr-2 { margin-right: var(--spacing-2); }
.mr-3 { margin-right: var(--spacing-3); }
.mr-4 { margin-right: var(--spacing-4); }

/* Padding */
.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-1); }
.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }
.p-5 { padding: var(--spacing-5); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }
.p-10 { padding: var(--spacing-10); }
.p-12 { padding: var(--spacing-12); }

.px-0 { padding-left: 0; padding-right: 0; }
.px-1 { padding-left: var(--spacing-1); padding-right: var(--spacing-1); }
.px-2 { padding-left: var(--spacing-2); padding-right: var(--spacing-2); }
.px-3 { padding-left: var(--spacing-3); padding-right: var(--spacing-3); }
.px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }
.px-6 { padding-left: var(--spacing-6); padding-right: var(--spacing-6); }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: var(--spacing-1); padding-bottom: var(--spacing-1); }
.py-2 { padding-top: var(--spacing-2); padding-bottom: var(--spacing-2); }
.py-3 { padding-top: var(--spacing-3); padding-bottom: var(--spacing-3); }
.py-4 { padding-top: var(--spacing-4); padding-bottom: var(--spacing-4); }
.py-5 { padding-top: var(--spacing-5); padding-bottom: var(--spacing-5); }
.py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }
.py-8 { padding-top: var(--spacing-8); padding-bottom: var(--spacing-8); }
.py-10 { padding-top: var(--spacing-10); padding-bottom: var(--spacing-10); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--spacing-1); }
.pt-2 { padding-top: var(--spacing-2); }
.pt-3 { padding-top: var(--spacing-3); }
.pt-4 { padding-top: var(--spacing-4); }
.pt-5 { padding-top: var(--spacing-5); }
.pt-6 { padding-top: var(--spacing-6); }
.pt-8 { padding-top: var(--spacing-8); }
.pt-10 { padding-top: var(--spacing-10); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--spacing-1); }
.pb-2 { padding-bottom: var(--spacing-2); }
.pb-3 { padding-bottom: var(--spacing-3); }
.pb-4 { padding-bottom: var(--spacing-4); }
.pb-5 { padding-bottom: var(--spacing-5); }
.pb-6 { padding-bottom: var(--spacing-6); }
.pb-8 { padding-bottom: var(--spacing-8); }
.pb-10 { padding-bottom: var(--spacing-10); }

.pl-0 { padding-left: 0; }
.pl-1 { padding-left: var(--spacing-1); }
.pl-2 { padding-left: var(--spacing-2); }
.pl-3 { padding-left: var(--spacing-3); }
.pl-4 { padding-left: var(--spacing-4); }

.pr-0 { padding-right: 0; }
.pr-1 { padding-right: var(--spacing-1); }
.pr-2 { padding-right: var(--spacing-2); }
.pr-3 { padding-right: var(--spacing-3); }
.pr-4 { padding-right: var(--spacing-4); }

/* =============================================================================
   Typography
   ============================================================================= */

/* Text Size */
.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-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); }

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

/* Text Color */
.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-disabled { color: var(--color-text-disabled); }
.text-inverse { color: var(--color-text-inverse); }

.text-brand { color: var(--color-brand-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }
.text-info { color: var(--color-info); }

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

/* Text Transform */
.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }
.normal-case { text-transform: none; }

/* Text Decoration */
.underline { text-decoration: underline; }
.line-through { text-decoration: line-through; }
.no-underline { text-decoration: none; }

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

/* Letter Spacing */
.tracking-tight { letter-spacing: var(--letter-spacing-tight); }
.tracking-normal { letter-spacing: var(--letter-spacing-normal); }
.tracking-wide { letter-spacing: var(--letter-spacing-wide); }

/* White Space */
.whitespace-normal { white-space: normal; }
.whitespace-nowrap { white-space: nowrap; }
.whitespace-pre { white-space: pre; }
.whitespace-pre-line { white-space: pre-line; }
.whitespace-pre-wrap { white-space: pre-wrap; }

/* Word Break */
.break-normal { overflow-wrap: normal; word-break: normal; }
.break-words { overflow-wrap: break-word; }
.break-all { word-break: break-all; }

/* Truncate */
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* =============================================================================
   Backgrounds
   ============================================================================= */

.bg-transparent { background-color: transparent; }
.bg-primary { background-color: var(--color-bg-primary); }
.bg-secondary { background-color: var(--color-bg-secondary); }
.bg-tertiary { background-color: var(--color-bg-tertiary); }

.bg-surface-base { background-color: var(--color-surface-base); }
.bg-surface-raised { background-color: var(--color-surface-raised); }
.bg-surface-overlay { background-color: var(--color-surface-overlay); }

.bg-brand { background-color: var(--color-brand-primary); }
.bg-success { background-color: var(--color-success); }
.bg-warning { background-color: var(--color-warning); }
.bg-error { background-color: var(--color-error); }
.bg-info { background-color: var(--color-info); }

/* =============================================================================
   Borders
   ============================================================================= */

/* Border Width */
.border-0 { border-width: 0; }
.border { border-width: 1px; }
.border-2 { border-width: 2px; }

.border-t { border-top-width: 1px; }
.border-r { border-right-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-l { border-left-width: 1px; }

/* Border Style */
.border-solid { border-style: solid; }
.border-none { border-style: none; }

/* Border Color */
.border-transparent { border-color: transparent; }
.border-default { border-color: var(--color-border-default); }
.border-subtle { border-color: var(--color-border-subtle); }
.border-strong { border-color: var(--color-border-strong); }
.border-active { border-color: var(--color-border-active); }

.border-brand { border-color: var(--color-brand-primary); }
.border-success { border-color: var(--color-success); }
.border-warning { border-color: var(--color-warning); }
.border-error { border-color: var(--color-error); }

/* Border Radius */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-md); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: 50%; }

/* Ring (Modern Focus Style - Tailwind approach) */
.ring-0 { box-shadow: 0 0 0 0 rgba(0, 0, 0, 0); }
.ring-1 { box-shadow: 0 0 0 1px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.ring-2 { box-shadow: 0 0 0 2px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.ring-4 { box-shadow: 0 0 0 4px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.ring-8 { box-shadow: 0 0 0 8px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.ring { box-shadow: 0 0 0 3px var(--ring-color, rgba(47, 129, 247, 0.5)); }

/* Ring Color */
.ring-brand { --ring-color: rgba(47, 129, 247, 0.5); }
.ring-success { --ring-color: rgba(46, 160, 67, 0.5); }
.ring-warning { --ring-color: rgba(187, 128, 9, 0.5); }
.ring-error { --ring-color: rgba(248, 81, 73, 0.5); }
.ring-white { --ring-color: rgba(255, 255, 255, 0.5); }

/* Ring Offset */
.ring-offset-0 { box-shadow: 0 0 0 0 var(--color-bg-primary), 0 0 0 3px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.ring-offset-1 { box-shadow: 0 0 0 1px var(--color-bg-primary), 0 0 0 4px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.ring-offset-2 { box-shadow: 0 0 0 2px var(--color-bg-primary), 0 0 0 5px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.ring-offset-4 { box-shadow: 0 0 0 4px var(--color-bg-primary), 0 0 0 7px var(--ring-color, rgba(47, 129, 247, 0.5)); }

/* Divide (Borders between children - Tailwind approach) */
.divide-x > * + * { border-left-width: 1px; border-left-style: solid; border-left-color: var(--color-border-default); }
.divide-y > * + * { border-top-width: 1px; border-top-style: solid; border-top-color: var(--color-border-default); }
.divide-x-2 > * + * { border-left-width: 2px; border-left-style: solid; border-left-color: var(--color-border-default); }
.divide-y-2 > * + * { border-top-width: 2px; border-top-style: solid; border-top-color: var(--color-border-default); }
.divide-x-0 > * + * { border-left-width: 0; }
.divide-y-0 > * + * { border-top-width: 0; }

/* Divide Color */
.divide-transparent > * + * { border-color: transparent; }
.divide-default > * + * { border-color: var(--color-border-default); }
.divide-subtle > * + * { border-color: var(--color-border-subtle); }
.divide-strong > * + * { border-color: var(--color-border-strong); }

/* =============================================================================
   Sizing
   ============================================================================= */

/* Width */
.w-auto { width: auto; }
.w-full { width: 100%; }
.w-screen { width: 100vw; }
.w-min { width: min-content; }
.w-max { width: max-content; }
.w-fit { width: fit-content; }

/* Height */
.h-auto { height: auto; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }
.h-min { height: min-content; }
.h-max { height: max-content; }
.h-fit { height: fit-content; }

/* Min/Max Width */
.min-w-0 { min-width: 0; }
.min-w-full { min-width: 100%; }
.max-w-full { max-width: 100%; }
.max-w-screen { max-width: 100vw; }

/* Min/Max Height */
.min-h-0 { min-height: 0; }
.min-h-full { min-height: 100%; }
.min-h-screen { min-height: 100vh; }
.max-h-full { max-height: 100%; }
.max-h-screen { max-height: 100vh; }

/* Aspect Ratio */
.aspect-auto { aspect-ratio: auto; }
.aspect-square { aspect-ratio: 1 / 1; }
.aspect-video { aspect-ratio: 16 / 9; }
.aspect-4-3 { aspect-ratio: 4 / 3; }
.aspect-21-9 { aspect-ratio: 21 / 9; }

/* Object Fit */
.object-contain { object-fit: contain; }
.object-cover { object-fit: cover; }
.object-fill { object-fit: fill; }
.object-none { object-fit: none; }
.object-scale-down { object-fit: scale-down; }

/* Object Position */
.object-bottom { object-position: bottom; }
.object-center { object-position: center; }
.object-left { object-position: left; }
.object-left-bottom { object-position: left bottom; }
.object-left-top { object-position: left top; }
.object-right { object-position: right; }
.object-right-bottom { object-position: right bottom; }
.object-right-top { object-position: right top; }
.object-top { object-position: top; }

/* =============================================================================
   Position
   ============================================================================= */

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

/* Placement */
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

.top-auto { top: auto; }
.right-auto { right: auto; }
.bottom-auto { bottom: auto; }
.left-auto { left: auto; }

/* =============================================================================
   Overflow
   ============================================================================= */

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

.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-hidden { overflow-y: hidden; }

/* =============================================================================
   Z-Index
   ============================================================================= */

.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }
.z-auto { z-index: auto; }

/* =============================================================================
   Opacity
   ============================================================================= */

.opacity-0 { opacity: 0; }
.opacity-5 { opacity: 0.05; }
.opacity-10 { opacity: 0.1; }
.opacity-20 { opacity: 0.2; }
.opacity-25 { opacity: 0.25; }
.opacity-30 { opacity: 0.3; }
.opacity-40 { opacity: 0.4; }
.opacity-50 { opacity: 0.5; }
.opacity-60 { opacity: 0.6; }
.opacity-70 { opacity: 0.7; }
.opacity-75 { opacity: 0.75; }
.opacity-80 { opacity: 0.8; }
.opacity-90 { opacity: 0.9; }
.opacity-95 { opacity: 0.95; }
.opacity-100 { opacity: 1; }

/* =============================================================================
   Shadows
   ============================================================================= */

.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-md); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* =============================================================================
   Interactivity
   ============================================================================= */

/* Cursor */
.cursor-auto { cursor: auto; }
.cursor-default { cursor: default; }
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* User Select */
.select-none { user-select: none; }
.select-text { user-select: text; }
.select-all { user-select: all; }
.select-auto { user-select: auto; }

/* Pointer Events */
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

/* =============================================================================
   Transitions
   ============================================================================= */

/* Transition Property */
.transition-none { transition-property: none; }
.transition-all { transition-property: all; transition-timing-function: var(--ease-out); transition-duration: var(--duration-default); }
.transition { transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform; transition-timing-function: var(--ease-out); transition-duration: var(--duration-default); }
.transition-colors { transition-property: background-color, border-color, color, fill, stroke; transition-timing-function: var(--ease-out); transition-duration: var(--duration-default); }
.transition-opacity { transition-property: opacity; transition-timing-function: var(--ease-out); transition-duration: var(--duration-default); }
.transition-shadow { transition-property: box-shadow; transition-timing-function: var(--ease-out); transition-duration: var(--duration-default); }
.transition-transform { transition-property: transform; transition-timing-function: var(--ease-out); transition-duration: var(--duration-default); }

/* Duration */
.duration-75 { transition-duration: 75ms; }
.duration-100 { transition-duration: 100ms; }
.duration-150 { transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }
.duration-500 { transition-duration: 500ms; }
.duration-700 { transition-duration: 700ms; }
.duration-1000 { transition-duration: 1000ms; }

/* Timing Function */
.ease-linear { transition-timing-function: linear; }
.ease-in { transition-timing-function: cubic-bezier(0.4, 0, 1, 1); }
.ease-out { transition-timing-function: cubic-bezier(0, 0, 0.2, 1); }
.ease-in-out { transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }

/* =============================================================================
   Transforms
   ============================================================================= */

/* Transform */
.transform { transform: translateX(var(--tw-translate-x, 0)) translateY(var(--tw-translate-y, 0)) rotate(var(--tw-rotate, 0)) skewX(var(--tw-skew-x, 0)) skewY(var(--tw-skew-y, 0)) scaleX(var(--tw-scale-x, 1)) scaleY(var(--tw-scale-y, 1)); }
.transform-none { transform: none; }

/* Translate */
.translate-x-0 { --tw-translate-x: 0; transform: translateX(0); }
.translate-y-0 { --tw-translate-y: 0; transform: translateY(0); }
.translate-x-1 { transform: translateX(var(--spacing-1)); }
.translate-x-2 { transform: translateX(var(--spacing-2)); }
.translate-x-4 { transform: translateX(var(--spacing-4)); }
.-translate-x-1 { transform: translateX(calc(var(--spacing-1) * -1)); }
.-translate-x-2 { transform: translateX(calc(var(--spacing-2) * -1)); }
.-translate-x-4 { transform: translateX(calc(var(--spacing-4) * -1)); }
.translate-y-1 { transform: translateY(var(--spacing-1)); }
.translate-y-2 { transform: translateY(var(--spacing-2)); }
.translate-y-4 { transform: translateY(var(--spacing-4)); }
.-translate-y-1 { transform: translateY(calc(var(--spacing-1) * -1)); }
.-translate-y-2 { transform: translateY(calc(var(--spacing-2) * -1)); }
.-translate-y-4 { transform: translateY(calc(var(--spacing-4) * -1)); }

/* Scale */
.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); }
.scale-150 { transform: scale(1.5); }

/* Rotate */
.rotate-0 { transform: rotate(0deg); }
.rotate-45 { transform: rotate(45deg); }
.rotate-90 { transform: rotate(90deg); }
.rotate-180 { transform: rotate(180deg); }
.rotate-270 { transform: rotate(270deg); }
.-rotate-45 { transform: rotate(-45deg); }
.-rotate-90 { transform: rotate(-90deg); }
.-rotate-180 { transform: rotate(-180deg); }

/* Transform Origin */
.origin-center { transform-origin: center; }
.origin-top { transform-origin: top; }
.origin-top-right { transform-origin: top right; }
.origin-right { transform-origin: right; }
.origin-bottom-right { transform-origin: bottom right; }
.origin-bottom { transform-origin: bottom; }
.origin-bottom-left { transform-origin: bottom left; }
.origin-left { transform-origin: left; }
.origin-top-left { transform-origin: top left; }

/* =============================================================================
   Visibility
   ============================================================================= */

.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* =============================================================================
   Accessibility
   ============================================================================= */

/* Screen Reader Only - Hide visually but keep for screen readers */
.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;
}

/* Not Screen Reader Only - Show element */
.not-sr-only {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* Focus Visible - Only show focus when keyboard navigation */
.focus-visible-ring:focus-visible {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* =============================================================================
   Container
   ============================================================================= */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-6);
    padding-right: var(--spacing-6);
}

@media (max-width: 768px) {
    .container {
        padding-left: var(--spacing-4);
        padding-right: var(--spacing-4);
    }
}

/* =============================================================================
   State Modifiers - Hover, Focus, Active
   ============================================================================= */

/* Hover States */
.hover\:bg-primary:hover { background-color: var(--color-bg-primary); }
.hover\:bg-secondary:hover { background-color: var(--color-bg-secondary); }
.hover\:bg-tertiary:hover { background-color: var(--color-bg-tertiary); }
.hover\:bg-surface-base:hover { background-color: var(--color-surface-base); }
.hover\:bg-surface-raised:hover { background-color: var(--color-surface-raised); }
.hover\:bg-surface-overlay:hover { background-color: var(--color-surface-overlay); }
.hover\:bg-brand:hover { background-color: var(--color-brand-primary-hover); }
.hover\:bg-success:hover { background-color: var(--color-success-hover); }
.hover\:bg-warning:hover { background-color: var(--color-warning-hover); }
.hover\:bg-error:hover { background-color: var(--color-error-hover); }

.hover\:text-primary:hover { color: var(--color-text-primary); }
.hover\:text-secondary:hover { color: var(--color-text-secondary); }
.hover\:text-brand:hover { color: var(--color-brand-primary-hover); }
.hover\:text-success:hover { color: var(--color-success); }
.hover\:text-warning:hover { color: var(--color-warning); }
.hover\:text-error:hover { color: var(--color-error); }

.hover\:border-brand:hover { border-color: var(--color-brand-primary-hover); }
.hover\:border-active:hover { border-color: var(--color-border-active); }
.hover\:border-strong:hover { border-color: var(--color-border-strong); }

.hover\:opacity-50:hover { opacity: 0.5; }
.hover\:opacity-60:hover { opacity: 0.6; }
.hover\:opacity-70:hover { opacity: 0.7; }
.hover\:opacity-80:hover { opacity: 0.8; }
.hover\:opacity-90:hover { opacity: 0.9; }
.hover\:opacity-100:hover { opacity: 1; }

.hover\:scale-105:hover { transform: scale(1.05); }
.hover\:scale-110:hover { transform: scale(1.1); }
.hover\:-translate-y-1:hover { transform: translateY(calc(var(--spacing-1) * -1)); }
.hover\:-translate-y-2:hover { transform: translateY(calc(var(--spacing-2) * -1)); }

.hover\:shadow:hover { box-shadow: var(--shadow-md); }
.hover\:shadow-md:hover { box-shadow: var(--shadow-md); }
.hover\:shadow-lg:hover { box-shadow: var(--shadow-lg); }
.hover\:shadow-xl:hover { box-shadow: var(--shadow-xl); }

/* Focus States */
.focus\:outline-none:focus { outline: none; }
.focus\:outline:focus { outline: 2px solid var(--color-brand-primary); }

.focus\:ring:focus { box-shadow: 0 0 0 3px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.focus\:ring-4:focus { box-shadow: 0 0 0 4px var(--ring-color, rgba(47, 129, 247, 0.5)); }

.focus\:ring-brand:focus { --ring-color: rgba(47, 129, 247, 0.5); box-shadow: 0 0 0 3px var(--ring-color); }
.focus\:ring-success:focus { --ring-color: rgba(46, 160, 67, 0.5); box-shadow: 0 0 0 3px var(--ring-color); }
.focus\:ring-error:focus { --ring-color: rgba(248, 81, 73, 0.5); box-shadow: 0 0 0 3px var(--ring-color); }

.focus\:border-brand:focus { border-color: var(--color-brand-primary); }
.focus\:border-active:focus { border-color: var(--color-border-active); }

.focus\:bg-surface-raised:focus { background-color: var(--color-surface-raised); }
.focus\:bg-surface-overlay:focus { background-color: var(--color-surface-overlay); }

/* Active States */
.active\:bg-brand:active { background-color: var(--color-brand-primary-active); }
.active\:bg-surface-overlay:active { background-color: var(--color-surface-overlay); }

.active\:scale-95:active { transform: scale(0.95); }
.active\:scale-100:active { transform: scale(1); }

.active\:opacity-80:active { opacity: 0.8; }

/* Focus Visible (keyboard navigation only) */
.focus-visible\:outline-none:focus-visible { outline: none; }
.focus-visible\:ring:focus-visible { box-shadow: 0 0 0 3px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.focus-visible\:ring-2:focus-visible { box-shadow: 0 0 0 2px var(--ring-color, rgba(47, 129, 247, 0.5)); }
.focus-visible\:ring-brand:focus-visible { --ring-color: rgba(47, 129, 247, 0.5); box-shadow: 0 0 0 3px var(--ring-color); }

/* Disabled States */
.disabled\:opacity-50:disabled { opacity: 0.5; }
.disabled\:opacity-60:disabled { opacity: 0.6; }
.disabled\:cursor-not-allowed:disabled { cursor: not-allowed; }
.disabled\:pointer-events-none:disabled { pointer-events: none; }

/* =============================================================================
   Responsive Modifiers - Mobile First Breakpoints
   ============================================================================= */

/* Small devices (sm) - 640px and up */
@media (min-width: 640px) {
    /* Display */
    .sm\:d-block { display: block; }
    .sm\:d-inline-block { display: inline-block; }
    .sm\:d-flex { display: flex; }
    .sm\:d-inline-flex { display: inline-flex; }
    .sm\:d-grid { display: grid; }
    .sm\:d-none { display: none; }

    /* Flex Direction */
    .sm\:flex-row { flex-direction: row; }
    .sm\:flex-column { flex-direction: column; }

    /* Grid */
    .sm\:grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .sm\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .sm\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .sm\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

    /* Gap */
    .sm\:gap-0 { gap: 0; }
    .sm\:gap-2 { gap: var(--spacing-2); }
    .sm\:gap-3 { gap: var(--spacing-3); }
    .sm\:gap-4 { gap: var(--spacing-4); }
    .sm\:gap-6 { gap: var(--spacing-6); }
    .sm\:gap-8 { gap: var(--spacing-8); }

    /* Justify & Align */
    .sm\:justify-start { justify-content: flex-start; }
    .sm\:justify-center { justify-content: center; }
    .sm\:justify-between { justify-content: space-between; }
    .sm\:items-start { align-items: flex-start; }
    .sm\:items-center { align-items: center; }
    .sm\:items-end { align-items: flex-end; }

    /* Spacing */
    .sm\:m-0 { margin: 0; }
    .sm\:m-auto { margin: auto; }
    .sm\:mx-auto { margin-left: auto; margin-right: auto; }
    .sm\:my-0 { margin-top: 0; margin-bottom: 0; }
    .sm\:mt-0 { margin-top: 0; }
    .sm\:mt-4 { margin-top: var(--spacing-4); }
    .sm\:mt-6 { margin-top: var(--spacing-6); }
    .sm\:mb-0 { margin-bottom: 0; }
    .sm\:mb-4 { margin-bottom: var(--spacing-4); }
    .sm\:mb-6 { margin-bottom: var(--spacing-6); }

    .sm\:p-0 { padding: 0; }
    .sm\:p-4 { padding: var(--spacing-4); }
    .sm\:p-6 { padding: var(--spacing-6); }
    .sm\:px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }
    .sm\:px-6 { padding-left: var(--spacing-6); padding-right: var(--spacing-6); }
    .sm\:py-4 { padding-top: var(--spacing-4); padding-bottom: var(--spacing-4); }
    .sm\:py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }

    /* Typography */
    .sm\:text-xs { font-size: var(--font-size-xs); }
    .sm\:text-sm { font-size: var(--font-size-sm); }
    .sm\:text-base { font-size: var(--font-size-base); }
    .sm\:text-lg { font-size: var(--font-size-lg); }
    .sm\:text-xl { font-size: var(--font-size-xl); }
    .sm\:text-2xl { font-size: var(--font-size-2xl); }
    .sm\:text-left { text-align: left; }
    .sm\:text-center { text-align: center; }
    .sm\:text-right { text-align: right; }

    /* Width/Height */
    .sm\:w-auto { width: auto; }
    .sm\:w-full { width: 100%; }
    .sm\:h-auto { height: auto; }
    .sm\:h-full { height: 100%; }
}

/* Medium devices (md) - 768px and up */
@media (min-width: 768px) {
    /* Display */
    .md\:d-block { display: block; }
    .md\:d-inline-block { display: inline-block; }
    .md\:d-flex { display: flex; }
    .md\:d-inline-flex { display: inline-flex; }
    .md\:d-grid { display: grid; }
    .md\:d-none { display: none; }

    /* Flex Direction */
    .md\:flex-row { flex-direction: row; }
    .md\:flex-column { flex-direction: column; }

    /* Grid */
    .md\:grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .md\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .md\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

    /* Gap */
    .md\:gap-0 { gap: 0; }
    .md\:gap-2 { gap: var(--spacing-2); }
    .md\:gap-3 { gap: var(--spacing-3); }
    .md\:gap-4 { gap: var(--spacing-4); }
    .md\:gap-6 { gap: var(--spacing-6); }
    .md\:gap-8 { gap: var(--spacing-8); }

    /* Justify & Align */
    .md\:justify-start { justify-content: flex-start; }
    .md\:justify-center { justify-content: center; }
    .md\:justify-between { justify-content: space-between; }
    .md\:items-start { align-items: flex-start; }
    .md\:items-center { align-items: center; }
    .md\:items-end { align-items: flex-end; }

    /* Spacing */
    .md\:m-0 { margin: 0; }
    .md\:m-auto { margin: auto; }
    .md\:mx-auto { margin-left: auto; margin-right: auto; }
    .md\:my-0 { margin-top: 0; margin-bottom: 0; }
    .md\:mt-0 { margin-top: 0; }
    .md\:mt-4 { margin-top: var(--spacing-4); }
    .md\:mt-6 { margin-top: var(--spacing-6); }
    .md\:mt-8 { margin-top: var(--spacing-8); }
    .md\:mb-0 { margin-bottom: 0; }
    .md\:mb-4 { margin-bottom: var(--spacing-4); }
    .md\:mb-6 { margin-bottom: var(--spacing-6); }
    .md\:mb-8 { margin-bottom: var(--spacing-8); }

    .md\:p-0 { padding: 0; }
    .md\:p-4 { padding: var(--spacing-4); }
    .md\:p-6 { padding: var(--spacing-6); }
    .md\:p-8 { padding: var(--spacing-8); }
    .md\:px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }
    .md\:px-6 { padding-left: var(--spacing-6); padding-right: var(--spacing-6); }
    .md\:px-8 { padding-left: var(--spacing-8); padding-right: var(--spacing-8); }
    .md\:py-4 { padding-top: var(--spacing-4); padding-bottom: var(--spacing-4); }
    .md\:py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }
    .md\:py-8 { padding-top: var(--spacing-8); padding-bottom: var(--spacing-8); }

    /* Typography */
    .md\:text-xs { font-size: var(--font-size-xs); }
    .md\:text-sm { font-size: var(--font-size-sm); }
    .md\:text-base { font-size: var(--font-size-base); }
    .md\:text-lg { font-size: var(--font-size-lg); }
    .md\:text-xl { font-size: var(--font-size-xl); }
    .md\:text-2xl { font-size: var(--font-size-2xl); }
    .md\:text-3xl { font-size: var(--font-size-3xl); }
    .md\:text-left { text-align: left; }
    .md\:text-center { text-align: center; }
    .md\:text-right { text-align: right; }

    /* Width/Height */
    .md\:w-auto { width: auto; }
    .md\:w-full { width: 100%; }
    .md\:h-auto { height: auto; }
    .md\:h-full { height: 100%; }
}

/* Large devices (lg) - 1024px and up */
@media (min-width: 1024px) {
    /* Display */
    .lg\:d-block { display: block; }
    .lg\:d-inline-block { display: inline-block; }
    .lg\:d-flex { display: flex; }
    .lg\:d-inline-flex { display: inline-flex; }
    .lg\:d-grid { display: grid; }
    .lg\:d-none { display: none; }

    /* Flex Direction */
    .lg\:flex-row { flex-direction: row; }
    .lg\:flex-column { flex-direction: column; }

    /* Grid */
    .lg\:grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .lg\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .lg\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .lg\:grid-cols-8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
    .lg\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

    /* Gap */
    .lg\:gap-0 { gap: 0; }
    .lg\:gap-2 { gap: var(--spacing-2); }
    .lg\:gap-3 { gap: var(--spacing-3); }
    .lg\:gap-4 { gap: var(--spacing-4); }
    .lg\:gap-6 { gap: var(--spacing-6); }
    .lg\:gap-8 { gap: var(--spacing-8); }
    .lg\:gap-10 { gap: var(--spacing-10); }

    /* Justify & Align */
    .lg\:justify-start { justify-content: flex-start; }
    .lg\:justify-center { justify-content: center; }
    .lg\:justify-between { justify-content: space-between; }
    .lg\:justify-around { justify-content: space-around; }
    .lg\:items-start { align-items: flex-start; }
    .lg\:items-center { align-items: center; }
    .lg\:items-end { align-items: flex-end; }

    /* Spacing */
    .lg\:m-0 { margin: 0; }
    .lg\:m-auto { margin: auto; }
    .lg\:mx-auto { margin-left: auto; margin-right: auto; }
    .lg\:my-0 { margin-top: 0; margin-bottom: 0; }
    .lg\:mt-0 { margin-top: 0; }
    .lg\:mt-6 { margin-top: var(--spacing-6); }
    .lg\:mt-8 { margin-top: var(--spacing-8); }
    .lg\:mt-10 { margin-top: var(--spacing-10); }
    .lg\:mb-0 { margin-bottom: 0; }
    .lg\:mb-6 { margin-bottom: var(--spacing-6); }
    .lg\:mb-8 { margin-bottom: var(--spacing-8); }
    .lg\:mb-10 { margin-bottom: var(--spacing-10); }

    .lg\:p-0 { padding: 0; }
    .lg\:p-6 { padding: var(--spacing-6); }
    .lg\:p-8 { padding: var(--spacing-8); }
    .lg\:p-10 { padding: var(--spacing-10); }
    .lg\:px-6 { padding-left: var(--spacing-6); padding-right: var(--spacing-6); }
    .lg\:px-8 { padding-left: var(--spacing-8); padding-right: var(--spacing-8); }
    .lg\:px-10 { padding-left: var(--spacing-10); padding-right: var(--spacing-10); }
    .lg\:py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }
    .lg\:py-8 { padding-top: var(--spacing-8); padding-bottom: var(--spacing-8); }
    .lg\:py-10 { padding-top: var(--spacing-10); padding-bottom: var(--spacing-10); }

    /* Typography */
    .lg\:text-sm { font-size: var(--font-size-sm); }
    .lg\:text-base { font-size: var(--font-size-base); }
    .lg\:text-lg { font-size: var(--font-size-lg); }
    .lg\:text-xl { font-size: var(--font-size-xl); }
    .lg\:text-2xl { font-size: var(--font-size-2xl); }
    .lg\:text-3xl { font-size: var(--font-size-3xl); }
    .lg\:text-4xl { font-size: var(--font-size-4xl); }
    .lg\:text-left { text-align: left; }
    .lg\:text-center { text-align: center; }
    .lg\:text-right { text-align: right; }

    /* Width/Height */
    .lg\:w-auto { width: auto; }
    .lg\:w-full { width: 100%; }
    .lg\:h-auto { height: auto; }
    .lg\:h-full { height: 100%; }
}

/* Extra Large devices (xl) - 1280px and up */
@media (min-width: 1280px) {
    /* Display */
    .xl\:d-block { display: block; }
    .xl\:d-inline-block { display: inline-block; }
    .xl\:d-flex { display: flex; }
    .xl\:d-inline-flex { display: inline-flex; }
    .xl\:d-grid { display: grid; }
    .xl\:d-none { display: none; }

    /* Flex Direction */
    .xl\:flex-row { flex-direction: row; }
    .xl\:flex-column { flex-direction: column; }

    /* Grid */
    .xl\:grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
    .xl\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .xl\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .xl\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .xl\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .xl\:grid-cols-8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
    .xl\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

    /* Gap */
    .xl\:gap-0 { gap: 0; }
    .xl\:gap-3 { gap: var(--spacing-3); }
    .xl\:gap-4 { gap: var(--spacing-4); }
    .xl\:gap-6 { gap: var(--spacing-6); }
    .xl\:gap-8 { gap: var(--spacing-8); }
    .xl\:gap-10 { gap: var(--spacing-10); }
    .xl\:gap-12 { gap: var(--spacing-12); }

    /* Justify & Align */
    .xl\:justify-start { justify-content: flex-start; }
    .xl\:justify-center { justify-content: center; }
    .xl\:justify-between { justify-content: space-between; }
    .xl\:justify-around { justify-content: space-around; }
    .xl\:items-start { align-items: flex-start; }
    .xl\:items-center { align-items: center; }
    .xl\:items-end { align-items: flex-end; }

    /* Spacing */
    .xl\:m-0 { margin: 0; }
    .xl\:m-auto { margin: auto; }
    .xl\:mx-auto { margin-left: auto; margin-right: auto; }
    .xl\:my-0 { margin-top: 0; margin-bottom: 0; }
    .xl\:mt-0 { margin-top: 0; }
    .xl\:mt-8 { margin-top: var(--spacing-8); }
    .xl\:mt-10 { margin-top: var(--spacing-10); }
    .xl\:mt-12 { margin-top: var(--spacing-12); }
    .xl\:mb-0 { margin-bottom: 0; }
    .xl\:mb-8 { margin-bottom: var(--spacing-8); }
    .xl\:mb-10 { margin-bottom: var(--spacing-10); }
    .xl\:mb-12 { margin-bottom: var(--spacing-12); }

    .xl\:p-0 { padding: 0; }
    .xl\:p-8 { padding: var(--spacing-8); }
    .xl\:p-10 { padding: var(--spacing-10); }
    .xl\:p-12 { padding: var(--spacing-12); }
    .xl\:px-8 { padding-left: var(--spacing-8); padding-right: var(--spacing-8); }
    .xl\:px-10 { padding-left: var(--spacing-10); padding-right: var(--spacing-10); }
    .xl\:px-12 { padding-left: var(--spacing-12); padding-right: var(--spacing-12); }
    .xl\:py-8 { padding-top: var(--spacing-8); padding-bottom: var(--spacing-8); }
    .xl\:py-10 { padding-top: var(--spacing-10); padding-bottom: var(--spacing-10); }
    .xl\:py-12 { padding-top: var(--spacing-12); padding-bottom: var(--spacing-12); }

    /* Typography */
    .xl\:text-base { font-size: var(--font-size-base); }
    .xl\:text-lg { font-size: var(--font-size-lg); }
    .xl\:text-xl { font-size: var(--font-size-xl); }
    .xl\:text-2xl { font-size: var(--font-size-2xl); }
    .xl\:text-3xl { font-size: var(--font-size-3xl); }
    .xl\:text-4xl { font-size: var(--font-size-4xl); }
    .xl\:text-5xl { font-size: var(--font-size-5xl); }
    .xl\:text-left { text-align: left; }
    .xl\:text-center { text-align: center; }
    .xl\:text-right { text-align: right; }

    /* Width/Height */
    .xl\:w-auto { width: auto; }
    .xl\:w-full { width: 100%; }
    .xl\:h-auto { height: auto; }
    .xl\:h-full { height: 100%; }
}

/* =============================================================================
   Dark Mode Support
   ============================================================================= */

/*
 * Dark mode is applied using a .dark-mode class on the root element
 * Usage: Add 'dark-mode' class to <html> or <body>
 * Example: <html class="dark-mode">
 */

/* Background Colors - Dark Mode */
.dark\:bg-primary:is(.dark-mode *) { background-color: var(--color-bg-primary-dark, #1a1a1a); }
.dark\:bg-secondary:is(.dark-mode *) { background-color: var(--color-bg-secondary-dark, #2d2d2d); }
.dark\:bg-tertiary:is(.dark-mode *) { background-color: var(--color-bg-tertiary-dark, #3a3a3a); }
.dark\:bg-surface-base:is(.dark-mode *) { background-color: var(--color-surface-base-dark, #1a1a1a); }
.dark\:bg-surface-raised:is(.dark-mode *) { background-color: var(--color-surface-raised-dark, #2d2d2d); }
.dark\:bg-surface-overlay:is(.dark-mode *) { background-color: var(--color-surface-overlay-dark, #3a3a3a); }

/* Text Colors - Dark Mode */
.dark\:text-primary:is(.dark-mode *) { color: var(--color-text-primary-dark, #e0e0e0); }
.dark\:text-secondary:is(.dark-mode *) { color: var(--color-text-secondary-dark, #b0b0b0); }
.dark\:text-tertiary:is(.dark-mode *) { color: var(--color-text-tertiary-dark, #808080); }
.dark\:text-white:is(.dark-mode *) { color: #ffffff; }
.dark\:text-gray-100:is(.dark-mode *) { color: #f5f5f5; }
.dark\:text-gray-200:is(.dark-mode *) { color: #e0e0e0; }
.dark\:text-gray-300:is(.dark-mode *) { color: #d0d0d0; }
.dark\:text-gray-400:is(.dark-mode *) { color: #a0a0a0; }

/* Border Colors - Dark Mode */
.dark\:border-default:is(.dark-mode *) { border-color: var(--color-border-default-dark, #404040); }
.dark\:border-subtle:is(.dark-mode *) { border-color: var(--color-border-subtle-dark, #333333); }
.dark\:border-strong:is(.dark-mode *) { border-color: var(--color-border-strong-dark, #606060); }

/* Opacity for Dark Mode transitions */
.dark\:opacity-80:is(.dark-mode *) { opacity: 0.8; }
.dark\:opacity-90:is(.dark-mode *) { opacity: 0.9; }
.dark\:opacity-100:is(.dark-mode *) { opacity: 1; }

/* =============================================================================
   Group & Peer Utilities (Parent-Child Interactions)
   ============================================================================= */

/*
 * Group utilities allow child elements to respond to parent state
 * Usage: Add 'group' class to parent, then use group-hover:, group-focus: on children
 * Example: <div class="group"><span class="group-hover:text-brand">Text</span></div>
 */

/* Group Hover States */
.group:hover .group-hover\:bg-primary { background-color: var(--color-bg-primary); }
.group:hover .group-hover\:bg-secondary { background-color: var(--color-bg-secondary); }
.group:hover .group-hover\:bg-surface-raised { background-color: var(--color-surface-raised); }
.group:hover .group-hover\:bg-brand { background-color: var(--color-brand-primary-hover); }

.group:hover .group-hover\:text-primary { color: var(--color-text-primary); }
.group:hover .group-hover\:text-brand { color: var(--color-brand-primary-hover); }
.group:hover .group-hover\:text-success { color: var(--color-success); }
.group:hover .group-hover\:text-warning { color: var(--color-warning); }
.group:hover .group-hover\:text-error { color: var(--color-error); }

.group:hover .group-hover\:opacity-50 { opacity: 0.5; }
.group:hover .group-hover\:opacity-75 { opacity: 0.75; }
.group:hover .group-hover\:opacity-100 { opacity: 1; }

.group:hover .group-hover\:scale-105 { transform: scale(1.05); }
.group:hover .group-hover\:scale-110 { transform: scale(1.1); }
.group:hover .group-hover\:-translate-y-1 { transform: translateY(calc(var(--spacing-1) * -1)); }
.group:hover .group-hover\:-translate-y-2 { transform: translateY(calc(var(--spacing-2) * -1)); }
.group:hover .group-hover\:translate-x-1 { transform: translateX(var(--spacing-1)); }
.group:hover .group-hover\:translate-x-2 { transform: translateX(var(--spacing-2)); }

.group:hover .group-hover\:visible { visibility: visible; }
.group:hover .group-hover\:invisible { visibility: hidden; }

.group:hover .group-hover\:shadow-md { box-shadow: var(--shadow-md); }
.group:hover .group-hover\:shadow-lg { box-shadow: var(--shadow-lg); }

/* Group Focus States */
.group:focus .group-focus\:bg-surface-raised { background-color: var(--color-surface-raised); }
.group:focus .group-focus\:text-brand { color: var(--color-brand-primary); }
.group:focus .group-focus\:opacity-100 { opacity: 1; }

/* Peer States (Sibling element interaction) */
/*
 * Peer utilities allow sibling elements to respond to each other's state
 * Usage: Add 'peer' class to first element, then use peer-*: modifiers on siblings
 * Example: <input class="peer" /><label class="peer-focus:text-brand">Label</label>
 */

.peer:hover ~ .peer-hover\:bg-surface-raised { background-color: var(--color-surface-raised); }
.peer:hover ~ .peer-hover\:text-brand { color: var(--color-brand-primary-hover); }
.peer:hover ~ .peer-hover\:opacity-100 { opacity: 1; }

.peer:focus ~ .peer-focus\:bg-surface-raised { background-color: var(--color-surface-raised); }
.peer:focus ~ .peer-focus\:text-brand { color: var(--color-brand-primary); }
.peer:focus ~ .peer-focus\:opacity-100 { opacity: 1; }
.peer:focus ~ .peer-focus\:ring-2 { box-shadow: 0 0 0 2px var(--ring-color, rgba(47, 129, 247, 0.5)); }

.peer:checked ~ .peer-checked\:bg-brand { background-color: var(--color-brand-primary); }
.peer:checked ~ .peer-checked\:text-brand { color: var(--color-brand-primary); }
.peer:checked ~ .peer-checked\:opacity-100 { opacity: 1; }
.peer:checked ~ .peer-checked\:visible { visibility: visible; }

.peer:disabled ~ .peer-disabled\:opacity-50 { opacity: 0.5; }
.peer:disabled ~ .peer-disabled\:cursor-not-allowed { cursor: not-allowed; }

/* =============================================================================
   Animations & Keyframes
   ============================================================================= */

/* Keyframe Definitions */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(-25%);
        animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }
    50% {
        transform: translateY(0);
        animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Animation Utilities */
.animate-none { animation: none; }

.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-ping {
    animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out;
}

.animate-fade-out {
    animation: fadeOut 0.3s ease-out;
}

.animate-slide-in-up {
    animation: slideInUp 0.3s ease-out;
}

.animate-slide-in-down {
    animation: slideInDown 0.3s ease-out;
}

.animate-slide-in-left {
    animation: slideInLeft 0.3s ease-out;
}

.animate-slide-in-right {
    animation: slideInRight 0.3s ease-out;
}

/* =============================================================================
   Accessibility - Motion Preferences
   ============================================================================= */

/*
 * Respects user's motion preferences for accessibility
 * Automatically disables animations for users who prefer reduced motion
 */

@media (prefers-reduced-motion: reduce) {
    .motion-reduce\:transition-none {
        transition-property: none !important;
    }

    .motion-reduce\:animate-none {
        animation: none !important;
    }

    /* Disable all animations by default for reduced motion */
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Motion-safe: Only apply animations when motion is safe */
@media (prefers-reduced-motion: no-preference) {
    .motion-safe\:animate-spin {
        animation: spin 1s linear infinite;
    }

    .motion-safe\:animate-pulse {
        animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    }

    .motion-safe\:transition-all {
        transition-property: all;
        transition-timing-function: var(--ease-out);
        transition-duration: var(--duration-default);
    }
}

/* =============================================================================
   Pseudo-class Utilities (First, Last, Odd, Even)
   ============================================================================= */

/*
 * Utilities for styling based on element position in parent
 * Useful for lists, tables, and repeating elements
 */

/* First Child */
.first\:mt-0:first-child { margin-top: 0; }
.first\:mb-0:first-child { margin-bottom: 0; }
.first\:pt-0:first-child { padding-top: 0; }
.first\:pb-0:first-child { padding-bottom: 0; }
.first\:border-t-0:first-child { border-top-width: 0; }
.first\:rounded-t-lg:first-child { border-top-left-radius: var(--radius-lg); border-top-right-radius: var(--radius-lg); }

/* Last Child */
.last\:mt-0:last-child { margin-top: 0; }
.last\:mb-0:last-child { margin-bottom: 0; }
.last\:pt-0:last-child { padding-top: 0; }
.last\:pb-0:last-child { padding-bottom: 0; }
.last\:border-b-0:last-child { border-bottom-width: 0; }
.last\:rounded-b-lg:last-child { border-bottom-left-radius: var(--radius-lg); border-bottom-right-radius: var(--radius-lg); }

/* Odd Children (Zebra striping) */
.odd\:bg-primary:nth-child(odd) { background-color: var(--color-bg-primary); }
.odd\:bg-secondary:nth-child(odd) { background-color: var(--color-bg-secondary); }
.odd\:bg-surface-base:nth-child(odd) { background-color: var(--color-surface-base); }
.odd\:bg-surface-raised:nth-child(odd) { background-color: var(--color-surface-raised); }

/* Even Children (Zebra striping) */
.even\:bg-primary:nth-child(even) { background-color: var(--color-bg-primary); }
.even\:bg-secondary:nth-child(even) { background-color: var(--color-bg-secondary); }
.even\:bg-surface-base:nth-child(even) { background-color: var(--color-surface-base); }
.even\:bg-surface-raised:nth-child(even) { background-color: var(--color-surface-raised); }

/* Only Child */
.only\:rounded-lg:only-child { border-radius: var(--radius-lg); }
.only\:border-0:only-child { border-width: 0; }

/* Empty State */
.empty\:hidden:empty { display: none; }
.empty\:d-none:empty { display: none; }
.empty\:d-block:empty { display: block; }

/* Not Empty */
.not-empty\:d-block:not(:empty) { display: block; }
.not-empty\:d-none:not(:empty) { display: none; }

/* =============================================================================
   Placeholder & Selection Styling
   ============================================================================= */

/*
 * Style input placeholder text and text selection
 */

/* Placeholder Colors */
.placeholder\:text-primary::placeholder { color: var(--color-text-primary); }
.placeholder\:text-secondary::placeholder { color: var(--color-text-secondary); }
.placeholder\:text-tertiary::placeholder { color: var(--color-text-tertiary); }
.placeholder\:text-disabled::placeholder { color: var(--color-text-disabled); }
.placeholder\:text-gray-400::placeholder { color: #9ca3af; }
.placeholder\:text-gray-500::placeholder { color: #6b7280; }

/* Placeholder Opacity */
.placeholder\:opacity-50::placeholder { opacity: 0.5; }
.placeholder\:opacity-60::placeholder { opacity: 0.6; }
.placeholder\:opacity-75::placeholder { opacity: 0.75; }
.placeholder\:opacity-100::placeholder { opacity: 1; }

/* Placeholder Styles */
.placeholder\:italic::placeholder { font-style: italic; }
.placeholder\:uppercase::placeholder { text-transform: uppercase; }

/* Selection Styling */
.selection\:bg-brand::selection {
    background-color: var(--color-brand-primary);
    color: white;
}

.selection\:bg-primary::selection {
    background-color: var(--color-bg-primary);
}

.selection\:bg-success::selection {
    background-color: var(--color-success);
    color: white;
}

.selection\:text-primary::selection {
    color: var(--color-text-primary);
}

.selection\:text-white::selection {
    color: white;
}

/* Default Selection Styling for Better UX */
::selection {
    background-color: var(--color-brand-primary);
    color: white;
}

/* =============================================================================
   Print Utilities
   ============================================================================= */

/*
 * Utilities for print media - hide/show elements when printing
 */

@media print {
    .print\:hidden { display: none !important; }
    .print\:d-none { display: none !important; }
    .print\:d-block { display: block !important; }
    .print\:d-inline { display: inline !important; }
    .print\:d-inline-block { display: inline-block !important; }

    .print\:text-black { color: #000 !important; }
    .print\:bg-white { background-color: #fff !important; }

    /* Remove shadows and effects for print */
    .print\:shadow-none { box-shadow: none !important; }
    .print\:border-0 { border-width: 0 !important; }
}