/* =====================================================
   WHATSAPP CRO & ADS SIGNAL QUALITY
   Sticky mobile FAB + qualifying micro-step dialog.
   Isolated file (per design) so either lever can be
   reverted independently from styles.css.
   ===================================================== */

/* =====================================================
   1. STICKY MOBILE FAB
   Hidden by default (desktop suppressed); shown only
   under the mobile breakpoint, matching the project's
   existing desktop-first override convention.
   ===================================================== */
.wa-fab {
  display: none;
  position: fixed;
  right: var(--space-4);
  bottom: var(--space-4);
  bottom: calc(var(--space-4) + env(safe-area-inset-bottom));
  width: 56px;
  height: 56px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-light) 100%
  );
  color: var(--text-on-primary);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-fixed);
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.wa-fab svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.wa-fab:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.wa-fab::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  box-shadow: 0 0 0 0 rgba(45, 106, 79, 0.45);
  animation: waFabPulse 2.4s ease-out infinite;
  pointer-events: none;
}

@keyframes waFabPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(45, 106, 79, 0.35);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(45, 106, 79, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(45, 106, 79, 0);
  }
}

@media (max-width: 768px) {
  .wa-fab {
    display: flex;
  }
}

/* =====================================================
   2. QUALIFYING MICRO-STEP DIALOG
   Centered modal, mirrors .blog-modal (css/styles.css)
   for visual/weight consistency.
   ===================================================== */
.wa-dialog-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-modal-backdrop);
  background: rgba(0, 0, 0, 0.6);
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.wa-dialog-backdrop:not([hidden]) {
  display: flex;
}

.wa-dialog {
  position: relative;
  z-index: var(--z-modal);
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  max-width: 420px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-8);
  box-shadow: var(--shadow-xl);
  animation: waDialogIn var(--transition-slow) ease-out;
}

@keyframes waDialogIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.wa-dialog__close {
  position: absolute;
  right: var(--space-4);
  top: var(--space-4);
  width: 40px;
  height: 40px;
  border: none;
  background: var(--surface-2);
  border-radius: 50%;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.wa-dialog__close:hover {
  background: var(--color-primary);
  color: var(--text-on-primary);
}

.wa-dialog__title {
  font-size: var(--text-xl);
  color: var(--color-primary-dark);
  margin-bottom: var(--space-6);
  padding-right: var(--space-8);
}

.wa-dialog__chips {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.wa-dialog__chip {
  display: block;
  width: 100%;
  text-align: left;
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  background: var(--bg-white);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.wa-dialog__chip:hover {
  background: var(--color-primary);
  color: var(--text-on-primary);
}

.wa-dialog__skip {
  display: block;
  width: 100%;
  text-align: center;
  background: none;
  border: none;
  padding: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  text-decoration: underline;
  cursor: pointer;
}

.wa-dialog__skip:hover {
  color: var(--text-secondary);
}

/* =====================================================
   3. REDUCED MOTION
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
  .wa-fab {
    transition: none;
  }

  .wa-fab::after {
    animation: none;
  }

  .wa-dialog {
    animation: none;
  }
}