/**
 * Utilities CSS
 * Mobile-First UI/UX Redesign
 * 
 * Helper classes for spacing, typography, display, and responsive visibility.
 * Uses design system tokens from design-system.css.
 */

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

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

.mt-0  { margin-top: var(--space-0) !important; }
.mt-1  { margin-top: var(--space-1) !important; }
.mt-2  { margin-top: var(--space-2) !important; }
.mt-3  { margin-top: var(--space-3) !important; }
.mt-4  { margin-top: var(--space-4) !important; }
.mt-6  { margin-top: var(--space-6) !important; }
.mt-8  { margin-top: var(--space-8) !important; }

.mb-0  { margin-bottom: var(--space-0) !important; }
.mb-1  { margin-bottom: var(--space-1) !important; }
.mb-2  { margin-bottom: var(--space-2) !important; }
.mb-3  { margin-bottom: var(--space-3) !important; }
.mb-4  { margin-bottom: var(--space-4) !important; }
.mb-6  { margin-bottom: var(--space-6) !important; }
.mb-8  { margin-bottom: var(--space-8) !important; }

.ms-0  { margin-left: var(--space-0) !important; }
.ms-2  { margin-left: var(--space-2) !important; }
.ms-4  { margin-left: var(--space-4) !important; }
.ms-auto { margin-left: auto !important; }

.me-0  { margin-right: var(--space-0) !important; }
.me-2  { margin-right: var(--space-2) !important; }
.me-4  { margin-right: var(--space-4) !important; }
.me-auto { margin-right: auto !important; }

.mx-auto { margin-left: auto !important; margin-right: auto !important; }

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

.pt-0  { padding-top: var(--space-0) !important; }
.pt-2  { padding-top: var(--space-2) !important; }
.pt-4  { padding-top: var(--space-4) !important; }
.pt-6  { padding-top: var(--space-6) !important; }

.pb-0  { padding-bottom: var(--space-0) !important; }
.pb-2  { padding-bottom: var(--space-2) !important; }
.pb-4  { padding-bottom: var(--space-4) !important; }
.pb-6  { padding-bottom: var(--space-6) !important; }

.ps-0  { padding-left: var(--space-0) !important; }
.ps-4  { padding-left: var(--space-4) !important; }
.ps-6  { padding-left: var(--space-6) !important; }

.pe-0  { padding-right: var(--space-0) !important; }
.pe-4  { padding-right: var(--space-4) !important; }
.pe-6  { padding-right: var(--space-6) !important; }

.px-4  { padding-left: var(--space-4) !important; padding-right: var(--space-4) !important; }
.px-6  { padding-left: var(--space-6) !important; padding-right: var(--space-6) !important; }
.py-2  { padding-top: var(--space-2) !important; padding-bottom: var(--space-2) !important; }
.py-3  { padding-top: var(--space-3) !important; padding-bottom: var(--space-3) !important; }
.py-4  { padding-top: var(--space-4) !important; padding-bottom: var(--space-4) !important; }

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

.text-center  { text-align: center !important; }
.text-left    { text-align: left !important; }
.text-right   { text-align: right !important; }

.fw-normal    { font-weight: var(--font-weight-normal) !important; }
.fw-medium    { font-weight: var(--font-weight-medium) !important; }
.fw-semibold  { font-weight: var(--font-weight-semibold) !important; }
.fw-bold      { font-weight: var(--font-weight-bold) !important; }

.text-xs      { font-size: var(--font-size-xs) !important; }
.text-sm      { font-size: var(--font-size-sm) !important; }
.text-base    { font-size: var(--font-size-base) !important; }
.text-md      { font-size: var(--font-size-md) !important; }
.text-lg      { font-size: var(--font-size-lg) !important; }
.text-xl      { font-size: var(--font-size-xl) !important; }
.text-2xl     { font-size: var(--font-size-2xl) !important; }

.text-primary   { color: var(--color-text-primary) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-tertiary  { color: var(--color-text-tertiary) !important; }
.text-inverse   { color: var(--color-text-inverse) !important; }
.text-link      { color: var(--color-text-link) !important; }
.text-success   { color: var(--color-success-600) !important; }
.text-danger    { color: var(--color-danger-500) !important; }
.text-warning   { color: var(--color-warning-600) !important; }

.text-truncate {
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  white-space: nowrap !important;
}

.text-uppercase { text-transform: uppercase !important; }
.text-capitalize { text-transform: capitalize !important; }
.text-nowrap { white-space: nowrap !important; }

.lh-tight   { line-height: var(--line-height-tight) !important; }
.lh-normal  { line-height: var(--line-height-normal) !important; }
.lh-relaxed { line-height: var(--line-height-relaxed) !important; }

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

.d-none    { display: none !important; }
.d-block   { display: block !important; }
.d-inline  { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex    { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid    { display: grid !important; }

/* ============================================
   FLEX UTILITIES
   ============================================ */

.flex-row      { flex-direction: row !important; }
.flex-col      { flex-direction: column !important; }
.flex-wrap     { flex-wrap: wrap !important; }
.flex-nowrap   { flex-wrap: nowrap !important; }
.flex-1        { flex: 1 1 0% !important; }
.flex-auto     { flex: 1 1 auto !important; }
.flex-none     { flex: none !important; }
.flex-shrink-0 { flex-shrink: 0 !important; }

.items-start   { align-items: flex-start !important; }
.items-center  { align-items: center !important; }
.items-end     { align-items: flex-end !important; }
.items-stretch { align-items: stretch !important; }

.justify-start   { justify-content: flex-start !important; }
.justify-center  { justify-content: center !important; }
.justify-end     { justify-content: flex-end !important; }
.justify-between { justify-content: space-between !important; }
.justify-around  { justify-content: space-around !important; }

.self-start  { align-self: flex-start !important; }
.self-center { align-self: center !important; }
.self-end    { align-self: flex-end !important; }

/* ============================================
   GAP UTILITIES
   ============================================ */

.gap-0  { gap: var(--space-0) !important; }
.gap-1  { gap: var(--space-1) !important; }
.gap-2  { gap: var(--space-2) !important; }
.gap-3  { gap: var(--space-3) !important; }
.gap-4  { gap: var(--space-4) !important; }
.gap-6  { gap: var(--space-6) !important; }
.gap-8  { gap: var(--space-8) !important; }

/* ============================================
   WIDTH / HEIGHT UTILITIES
   ============================================ */

.w-full  { width: 100% !important; }
.w-auto  { width: auto !important; }
.h-full  { height: 100% !important; }
.min-h-screen { min-height: 100vh !important; }

/* ============================================
   BORDER & RADIUS UTILITIES
   ============================================ */

.rounded-none { border-radius: var(--radius-none) !important; }
.rounded-sm   { border-radius: var(--radius-sm) !important; }
.rounded      { border-radius: var(--radius-base) !important; }
.rounded-md   { border-radius: var(--radius-md) !important; }
.rounded-lg   { border-radius: var(--radius-lg) !important; }
.rounded-xl   { border-radius: var(--radius-xl) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

.border-0      { border: none !important; }
.border        { border: 1px solid var(--color-border-default) !important; }
.border-subtle { border: 1px solid var(--color-border-subtle) !important; }

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

.shadow-none { box-shadow: none !important; }
.shadow-xs   { box-shadow: var(--shadow-xs) !important; }
.shadow-sm   { box-shadow: var(--shadow-sm) !important; }
.shadow      { box-shadow: var(--shadow-base) !important; }
.shadow-md   { box-shadow: var(--shadow-md) !important; }
.shadow-lg   { box-shadow: var(--shadow-lg) !important; }

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

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

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

.relative { position: relative !important; }
.absolute { position: absolute !important; }
.fixed    { position: fixed !important; }
.sticky   { position: sticky !important; }

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

.cursor-pointer  { cursor: pointer !important; }
.cursor-default  { cursor: default !important; }
.cursor-not-allowed { cursor: not-allowed !important; }

/* ============================================
   RESPONSIVE VISIBILITY
   ============================================ */

/* Hide on mobile (<768px), show on tablet+ */
@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
}

/* Show on mobile only (<768px) */
@media (min-width: 768px) {
  .show-mobile-only { display: none !important; }
}

/* Hide on desktop (>=1024px) */
@media (min-width: 1024px) {
  .hide-desktop { display: none !important; }
}

/* Show on desktop only */
@media (max-width: 1023px) {
  .show-desktop-only { display: none !important; }
}

/* ============================================
   SCREEN READER ONLY
   ============================================ */

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