/* =============================================================================
   NEFRA — WhatsApp Float Button CSS
   ============================================================================= */

.wa-float {
  position: fixed;
  right: 22px;
  bottom: 76px;
  z-index: 999;
  animation: wa-in .5s .9s cubic-bezier(.34,1.56,.64,1) both;
}

@keyframes wa-in {
  from { opacity: 0; transform: scale(.5) translateY(16px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.wa-btn {
  position: relative;
  width: 52px;
  height: 52px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 18px rgba(37,211,102,.4);
  text-decoration: none;
  transition: transform .2s;
  will-change: transform;
}
.wa-btn:hover {
  transform: scale(1.08);
}

.wa-btn svg {
  width: 28px;
  height: 28px;
  fill: #fff;
}

.wa-btn::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #25D366;
  opacity: 0;
  animation: wa-pulse 3.5s 2s ease-out infinite;
}

@keyframes wa-pulse {
  0%   { opacity: .55; transform: scale(1); }
  100% { opacity: 0;   transform: scale(1.5); }
}

/* Tooltip */
.wa-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--text);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.wa-tooltip::after {
  content: '';
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--text);
}
.wa-float:hover .wa-tooltip {
  opacity: 1;
}

/* Scroll-to-top button */
#scroll-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 999;
  width: 44px;
  height: 44px;
  background: var(--teal);
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .25s, transform .25s;
  box-shadow: var(--shadow-sm);
}
#scroll-top.show {
  opacity: 1;
  transform: translateY(0);
}
#scroll-top:hover {
  background: var(--teal-mid);
}