/**
 * Dripex Utility Classes & Accessibility Styles (Phase 7).
 * Layout, Grids, Flex, Badges, Focus-visible, Skip Links, Toasts, and Ripples.
 *
 * @package storefront-child
 */

/* ==========================================================================
   1. ACCESSIBILITY & FOCUS STYLES (WCAG 2.1 AA)
   ========================================================================== */
.dripex-skip-link {
  position: absolute;
  top: -120px;
  left: 20px;
  background: var(--color-navy, #0D1B3E);
  color: #FFFFFF !important;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 800;
  font-size: 14px;
  z-index: 999999;
  text-decoration: none !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  border: 2px solid var(--color-blue, #2F6FED);
  transition: top 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

.dripex-skip-link:focus,
.dripex-skip-link:focus-visible {
  top: 20px;
  outline: 3px solid var(--color-blue, #2F6FED);
  outline-offset: 3px;
}

/* Accessible focus ring on all interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2.5px solid var(--color-blue, #2F6FED) !important;
  outline-offset: 3px !important;
}

/* ==========================================================================
   2. LAYOUT & SPACING UTILITIES
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max, 1280px);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(16px, 3vw, 32px);
  padding-right: clamp(16px, 3vw, 32px);
  box-sizing: border-box;
}

.section-padding {
  padding-top: clamp(40px, 5vw, 72px);
  padding-bottom: clamp(40px, 5vw, 72px);
}

.section-padding-sm {
  padding-top: clamp(24px, 3vw, 40px);
  padding-bottom: clamp(24px, 3vw, 40px);
}

/* ==========================================================================
   3. RESPONSIVE GRID UTILITIES
   ========================================================================== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(16px, 2.5vw, 28px);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2.5vw, 28px);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(16px, 2.5vw, 28px);
}

@media (max-width: 1023px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   4. FLEX UTILITIES
   ========================================================================== */
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-start {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-1 { gap: var(--space-1, 4px); }
.gap-2 { gap: var(--space-2, 8px); }
.gap-3 { gap: var(--space-3, 12px); }
.gap-4 { gap: var(--space-4, 16px); }
.gap-6 { gap: var(--space-6, 24px); }
.gap-8 { gap: var(--space-8, 32px); }

/* ==========================================================================
   5. BADGE UTILITIES
   ========================================================================== */
.badge-red,
.badge-green,
.badge-navy,
.badge-blue,
.badge-amber {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 9999px;
  line-height: 1.3;
}

.badge-red { background: #FEF2F2; color: #DC2626; border: 1px solid #FECACA; }
.badge-green { background: #F0FDF4; color: #16A34A; border: 1px solid #BBF7D0; }
.badge-navy { background: #EEF2F6; color: #0D1B3E; border: 1px solid #CBD5E1; }
.badge-blue { background: #EFF6FF; color: #2563EB; border: 1px solid #BFDBFE; }
.badge-amber { background: #FFFBEB; color: #D97706; border: 1px solid #FDE68A; }

/* ==========================================================================
   6. TOAST NOTIFICATION CONTAINER & STYLES
   ========================================================================== */
.dripex-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--z-toast, 1400);
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 380px;
  width: calc(100% - 48px);
  pointer-events: none;
}

.dripex-toast {
  pointer-events: auto;
  background: var(--color-navy, #0D1B3E);
  color: #FFFFFF;
  border-radius: 14px;
  padding: 14px 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13.5px;
  font-weight: 600;
  transform: translateY(20px) scale(0.95);
  opacity: 0;
  transition: all 250ms cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.dripex-toast.is-visible {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.dripex-toast__icon {
  width: 24px;
  height: 24px;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.dripex-toast__icon svg {
  width: 14px;
  height: 14px;
}

.dripex-toast--success .dripex-toast__icon { background: #22C55E; color: #FFFFFF; }
.dripex-toast--error .dripex-toast__icon { background: #E63946; color: #FFFFFF; }
.dripex-toast--info .dripex-toast__icon { background: #2F6FED; color: #FFFFFF; }

.dripex-toast__msg {
  flex-grow: 1;
  line-height: 1.4;
}

.dripex-toast__close {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  font-size: 18px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  transition: color 150ms ease;
}

.dripex-toast__close:hover {
  color: #FFFFFF;
}

/* ==========================================================================
   7. BUTTON RIPPLE EFFECT
   ========================================================================== */
.dripex-has-ripple {
  position: relative;
  overflow: hidden;
}

.dripex-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transform: scale(0);
  animation: dripex-ripple-anim 600ms linear;
  pointer-events: none;
}

@keyframes dripex-ripple-anim {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ==========================================================================
   8. SCROLL REVEAL ANIMATIONS (IntersectionObserver)
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  .dxs-fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1), transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
  }

  .dxs-fade-up.is-in-view {
    opacity: 1;
    transform: translateY(0);
  }
}