/* ============================================================
   UTILITIES.CSS - Helper Classes & Animations
   AVGC XR Solutions Design System v3.0
   ============================================================ */

/* ---------- Spacing Utilities ---------- */
/* Margin */
.m-0 { margin: 0; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.ml-0 { margin-left: 0; }
.mr-0 { margin-right: 0; }

.m-1 { margin: var(--spacing-1); }
.mt-1 { margin-top: var(--spacing-1); }
.mb-1 { margin-bottom: var(--spacing-1); }
.ml-1 { margin-left: var(--spacing-1); }
.mr-1 { margin-right: var(--spacing-1); }

.m-2 { margin: var(--spacing-2); }
.mt-2 { margin-top: var(--spacing-2); }
.mb-2 { margin-bottom: var(--spacing-2); }
.ml-2 { margin-left: var(--spacing-2); }
.mr-2 { margin-right: var(--spacing-2); }

.m-3 { margin: var(--spacing-3); }
.mt-3 { margin-top: var(--spacing-3); }
.mb-3 { margin-bottom: var(--spacing-3); }
.ml-3 { margin-left: var(--spacing-3); }
.mr-3 { margin-right: var(--spacing-3); }

.m-4 { margin: var(--spacing-4); }
.mt-4 { margin-top: var(--spacing-4); }
.mb-4 { margin-bottom: var(--spacing-4); }
.ml-4 { margin-left: var(--spacing-4); }
.mr-4 { margin-right: var(--spacing-4); }

.m-5 { margin: var(--spacing-5); }
.mt-5 { margin-top: var(--spacing-5); }
.mb-5 { margin-bottom: var(--spacing-5); }
.ml-5 { margin-left: var(--spacing-5); }
.mr-5 { margin-right: var(--spacing-5); }

.m-6 { margin: var(--spacing-6); }
.mt-6 { margin-top: var(--spacing-6); }
.mb-6 { margin-bottom: var(--spacing-6); }
.ml-6 { margin-left: var(--spacing-6); }
.mr-6 { margin-right: var(--spacing-6); }

.m-auto { margin: auto; }
.mt-auto { margin-top: auto; }
.mb-auto { margin-bottom: auto; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

/* Padding */
.p-0 { padding: 0; }
.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }
.pl-0 { padding-left: 0; }
.pr-0 { padding-right: 0; }

.p-1 { padding: var(--spacing-1); }
.pt-1 { padding-top: var(--spacing-1); }
.pb-1 { padding-bottom: var(--spacing-1); }
.pl-1 { padding-left: var(--spacing-1); }
.pr-1 { padding-right: var(--spacing-1); }

.p-2 { padding: var(--spacing-2); }
.pt-2 { padding-top: var(--spacing-2); }
.pb-2 { padding-bottom: var(--spacing-2); }
.pl-2 { padding-left: var(--spacing-2); }
.pr-2 { padding-right: var(--spacing-2); }

.p-3 { padding: var(--spacing-3); }
.pt-3 { padding-top: var(--spacing-3); }
.pb-3 { padding-bottom: var(--spacing-3); }
.pl-3 { padding-left: var(--spacing-3); }
.pr-3 { padding-right: var(--spacing-3); }

.p-4 { padding: var(--spacing-4); }
.pt-4 { padding-top: var(--spacing-4); }
.pb-4 { padding-bottom: var(--spacing-4); }
.pl-4 { padding-left: var(--spacing-4); }
.pr-4 { padding-right: var(--spacing-4); }

.p-5 { padding: var(--spacing-5); }
.pt-5 { padding-top: var(--spacing-5); }
.pb-5 { padding-bottom: var(--spacing-5); }
.pl-5 { padding-left: var(--spacing-5); }
.pr-5 { padding-right: var(--spacing-5); }

.p-6 { padding: var(--spacing-6); }
.pt-6 { padding-top: var(--spacing-6); }
.pb-6 { padding-bottom: var(--spacing-6); }
.pl-6 { padding-left: var(--spacing-6); }
.pr-6 { padding-right: var(--spacing-6); }

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

.text-uppercase { text-transform: uppercase; }
.text-lowercase { text-transform: lowercase; }
.text-capitalize { text-transform: capitalize; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.text-white { color: var(--color-white); }
.text-muted { color: var(--color-text-secondary); }

.font-light { font-weight: var(--font-weight-light); }
.font-regular { 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); }
.font-extrabold { font-weight: var(--font-weight-extrabold); }

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

@media (max-width: 768px) {
  .d-sm-none { display: none; }
  .d-sm-block { display: block; }
  .d-sm-flex { display: flex; }
}

@media (max-width: 992px) {
  .d-md-none { display: none; }
  .d-md-block { display: block; }
  .d-md-flex { display: flex; }
}

/* Flex Utilities */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.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; }

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

.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); }

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

.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

/* ---------- Sizing Utilities ---------- */
.w-100 { width: 100%; }
.w-75 { width: 75%; }
.w-50 { width: 50%; }
.w-25 { width: 25%; }
.w-auto { width: auto; }

.h-100 { height: 100%; }
.h-auto { height: auto; }

/* ---------- Border Utilities ---------- */
.border { border: 1px solid var(--color-border); }
.border-top { border-top: 1px solid var(--color-border); }
.border-bottom { border-bottom: 1px solid var(--color-border); }
.border-none { border: none; }

.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: var(--radius-full); }

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

/* ---------- Overflow Utilities ---------- */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-scroll { overflow: scroll; }
.overflow-visible { overflow: visible; }

/* ---------- Z-Index Utilities ---------- */
.z-negative { z-index: var(--z-negative); }
.z-elevate { z-index: var(--z-elevate); }
.z-dropdown { z-index: var(--z-dropdown); }
.z-sticky { z-index: var(--z-sticky); }
.z-header { z-index: var(--z-header); }
.z-modal { z-index: var(--z-modal); }

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

/* ---------- Animations ---------- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Animation Classes */
.animate-fade-in {
  animation: fadeIn 0.6s cubic-bezier(0.2, 0.9, 0.4, 1.1) forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.7s cubic-bezier(0.2, 0.9, 0.4, 1.1) forwards;
}

.animate-fade-in-left {
  animation: fadeInLeft 0.6s cubic-bezier(0.2, 0.9, 0.4, 1.1) forwards;
}

.animate-fade-in-right {
  animation: fadeInRight 0.6s cubic-bezier(0.2, 0.9, 0.4, 1.1) forwards;
}

.animate-scale-in {
  animation: scaleIn 0.5s cubic-bezier(0.2, 0.9, 0.4, 1.1) forwards;
}

/* Animation Delays */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }
.delay-600 { animation-delay: 600ms; }

/* Scroll Reveal */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.2, 0.9, 0.4, 1.1),
              transform 0.6s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

.scroll-reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Hover Effects ---------- */
.hover-lift {
  transition: transform var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
}

.hover-scale {
  transition: transform var(--transition-base);
}

.hover-scale:hover {
  transform: scale(1.02);
}

.hover-shadow {
  transition: box-shadow var(--transition-base);
}

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

/* ---------- Background Utilities ---------- */
.bg-white { background-color: var(--color-white); }
.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-surface { background-color: var(--color-surface); }
.bg-transparent { background-color: transparent; }

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

/* ---------- 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;
}