/**
 * WooCommerce Quantity Multiples - Frontend Styles
 */

:root {
  --wc-qm-primary: #1e293b;
  --wc-qm-accent: #3b82f6;
  --wc-qm-accent-light: #eff6ff;
  --wc-qm-border: #e2e8f0;
  --wc-qm-border-hover: #cbd5e1;
  --wc-qm-bg-subtle: #f8fafc;
  --wc-qm-text-muted: #64748b;
  --wc-qm-text-dark: #0f172a;
  --wc-qm-danger: #ef4444;
  --wc-qm-danger-bg: #fef2f2;
  --wc-qm-radius: 8px;
  --wc-qm-radius-sm: 6px;
  --wc-qm-transition: 150ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Container */
.wc-qm-wrapper {
  margin: 1.25rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 420px;
}

/* Badge / Pack Info Pill */
.wc-qm-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.825rem;
  font-weight: 500;
  line-height: 1.2;
  color: #1e40af;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  width: fit-content;
  user-select: none;
}

.wc-qm-badge svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Modern Stepper Wrapper */
.wc-qm-stepper {
  display: inline-flex;
  align-items: center;
  background: #ffffff;
  border: 1.5px solid var(--wc-qm-border);
  border-radius: var(--wc-qm-radius);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: border-color var(--wc-qm-transition), box-shadow var(--wc-qm-transition);
  width: fit-content;
}

.wc-qm-stepper:focus-within {
  border-color: var(--wc-qm-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.wc-qm-stepper.is-invalid {
  border-color: var(--wc-qm-danger) !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
}

/* Stepper +/- Buttons */
.wc-qm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 44px;
  background: var(--wc-qm-bg-subtle);
  border: none;
  color: var(--wc-qm-text-dark);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: background var(--wc-qm-transition), color var(--wc-qm-transition), transform var(--wc-qm-transition);
}

.wc-qm-btn:hover:not(:disabled) {
  background: #f1f5f9;
  color: var(--wc-qm-accent);
}

.wc-qm-btn:active:not(:disabled) {
  transform: scale(0.92);
}

.wc-qm-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Overriding the input inside stepper */
.wc-qm-stepper input.qty {
  width: 70px !important;
  height: 44px !important;
  border: none !important;
  background: transparent !important;
  text-align: center !important;
  font-size: 1.05rem !important;
  font-weight: 600 !important;
  color: var(--wc-qm-text-dark) !important;
  padding: 0 !important;
  margin: 0 !important;
  box-shadow: none !important;
  appearance: textfield !important;
  -moz-appearance: textfield !important;
}

.wc-qm-stepper input.qty::-webkit-outer-spin-button,
.wc-qm-stepper input.qty::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Quick Selection Chips */
.wc-qm-chips {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.wc-qm-chips-label {
  font-size: 0.775rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--wc-qm-text-muted);
  margin-right: 0.2rem;
}

.wc-qm-chip {
  background: #ffffff;
  border: 1px solid var(--wc-qm-border);
  color: var(--wc-qm-text-dark);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.3rem 0.65rem;
  border-radius: var(--wc-qm-radius-sm);
  cursor: pointer;
  transition: all var(--wc-qm-transition);
  user-select: none;
}

.wc-qm-chip:hover {
  border-color: var(--wc-qm-border-hover);
  background: var(--wc-qm-bg-subtle);
}

.wc-qm-chip:active {
  transform: scale(0.95);
}

.wc-qm-chip.is-active {
  background: var(--wc-qm-primary);
  border-color: var(--wc-qm-primary);
  color: #ffffff;
}

/* Live Pack Summary */
.wc-qm-summary {
  font-size: 0.85rem;
  color: var(--wc-qm-text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.wc-qm-summary strong {
  color: var(--wc-qm-text-dark);
}

/* Error/Warning Notice with Quick Snap */
.wc-qm-warning {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: var(--wc-qm-danger-bg);
  border: 1px solid #fecaca;
  color: #991b1b;
  padding: 0.5rem 0.75rem;
  border-radius: var(--wc-qm-radius);
  font-size: 0.825rem;
  animation: wcQmSlideDown 180ms ease-out;
}

.wc-qm-warning-snap-btn {
  background: #ffffff;
  border: 1px solid #fca5a5;
  color: #991b1b;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--wc-qm-radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--wc-qm-transition), transform var(--wc-qm-transition);
}

.wc-qm-warning-snap-btn:hover {
  background: #fee2e2;
}

.wc-qm-warning-snap-btn:active {
  transform: scale(0.95);
}

/* Cart Table Badge */
.wc-qm-cart-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: #475569;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-top: 0.35rem;
}

/* Shake animation for invalid submit */
@keyframes wcQmShake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-4px); }
  40%, 80% { transform: translateX(4px); }
}

.wc-qm-shake {
  animation: wcQmShake 350ms cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes wcQmSlideDown {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .wc-qm-warning,
  .wc-qm-shake,
  .wc-qm-btn,
  .wc-qm-chip {
    animation: none !important;
    transition: none !important;
  }
}