/* ==========================================================================
   LUMIÈRE BEAUTY STUDIO - ANIMATIONS & MICRO-INTERACTIONS
   Senior Frontend Developer Level Transitions & Keyframes
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. KEYFRAME DEFINITIONS
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes floatSoft {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 15px rgba(140, 83, 77, 0.2);
  }
  50% {
    box-shadow: 0 0 28px rgba(140, 83, 77, 0.45);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

@keyframes rotateSubtle {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* --------------------------------------------------------------------------
   2. SCROLL REVEAL UTILITY CLASSES (INTERSECTION OBSERVER)
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-35px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(35px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered Children Delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }

/* --------------------------------------------------------------------------
   3. CREATIVE MICRO-INTERACTIONS
   -------------------------------------------------------------------------- */
/* Floating quote card */
.floating-soft {
  animation: floatSoft 5s ease-in-out infinite;
}

/* Primary buttons hover glow effect */
.btn-primary {
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -60%;
  width: 20%;
  height: 200%;
  background: rgba(255, 255, 255, 0.25);
  transform: rotate(30deg);
  transition: none;
}

.btn-primary:hover::after {
  left: 140%;
  transition: left 0.75s ease-in-out;
}

/* Magnetic subtle hover for service cards */
.service-card {
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
              box-shadow 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
              border-color 0.3s ease;
}

/* Pulsing effect for WhatsApp floating button */
.float-wa {
  animation: pulseGlow 3s infinite;
}

/* Smooth tab fade transition */
.price-content-fade {
  animation: fadeIn 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Interactive Before/After divider pulse */
.ba-handle {
  animation: pulseGlow 2.5s infinite;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: #D8CCC3;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}