/* ==========================================================================
   Phone Floating Button
   ========================================================================== */

.phone-float {
  position: fixed;
  bottom: calc(var(--space-6) + 70px); /* Above Zalo button */
  right: var(--space-6);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Tooltip - positioned to the left of button */
.phone-tooltip {
  background: var(--color-white);
  color: var(--color-black);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
  opacity: 0;
  transform: translateX(10px);
  transition: all var(--duration-normal) var(--ease-out-quart);
  pointer-events: none;
  order: -1;
}

.phone-float:hover .phone-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* Main Button */
.phone-btn {
  width: 60px;
  height: 60px;
  background: #22C55E;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.4);
  transition: all var(--duration-normal) var(--ease-out-quart);
  position: relative;
  cursor: pointer;
  text-decoration: none;
  flex-shrink: 0;
}

.phone-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(34, 197, 94, 0.5);
}

.phone-btn:active {
  transform: scale(1.05);
}

/* Phone Icon */
.phone-btn svg {
  width: 28px;
  height: 28px;
  fill: white;
  stroke: white;
}

/* Pulse Animation */
.phone-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #22C55E;
  animation: phonePulse 2s ease-out infinite;
  animation-delay: 1s;
  z-index: -1;
}

@keyframes phonePulse {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

/* Ringing animation on icon */
.phone-btn svg {
  animation: phoneRing 3s ease-in-out infinite;
}

@keyframes phoneRing {
  0%, 100% {
    transform: rotate(0deg);
  }
  5%, 15% {
    transform: rotate(-15deg);
  }
  10%, 20% {
    transform: rotate(15deg);
  }
  25% {
    transform: rotate(0deg);
  }
}

/* Mobile adjustments */
@media (max-width: 767px) {
  .phone-float {
    bottom: calc(var(--space-4) + 66px);
    right: var(--space-4);
  }
  
  .phone-btn {
    width: 56px;
    height: 56px;
  }
  
  .phone-btn svg {
    width: 24px;
    height: 24px;
  }
  
  .phone-tooltip {
    display: none;
  }
}

/* Hide when mobile menu is open */
body.menu-open .phone-float {
  opacity: 0;
  pointer-events: none;
}