/* ==========================================================================
   BATHHUB - KEYFRAME ANIMATIONS & SCROLL REVEAL STYLES
   ========================================================================== */

/* --- KEYFRAME ANIMATIONS --- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(35px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-12px) rotate(1deg);
  }
  100% {
    transform: translateY(0px) rotate(0deg);
  }
}

@keyframes floatSlow {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-18px) rotate(-1.5deg);
  }
  100% {
    transform: translateY(0px) rotate(0deg);
  }
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.18);
    opacity: 0;
  }
  100% {
    transform: scale(1.18);
    opacity: 0;
  }
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

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

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* --- SCROLL-TRIGGERED REVEAL SYSTEM --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.75s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.75s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-45px);
  transition: opacity 0.75s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.75s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(45px);
  transition: opacity 0.75s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.75s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.75s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.75s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered Children Delays */
.stagger-children > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.12s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.19s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.26s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.33s; }
.stagger-children > *:nth-child(6) { transition-delay: 0.40s; }
.stagger-children > *:nth-child(7) { transition-delay: 0.47s; }
.stagger-children > *:nth-child(8) { transition-delay: 0.54s; }
.stagger-children > *:nth-child(9) { transition-delay: 0.61s; }
.stagger-children > *:nth-child(10) { transition-delay: 0.68s; }
.stagger-children > *:nth-child(11) { transition-delay: 0.75s; }
.stagger-children > *:nth-child(12) { transition-delay: 0.82s; }

/* --- HERO SPECIFIC ANIMATIONS --- */
.hero-title .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
  animation-delay: var(--delay, 0ms);
}

.animate-float-1 {
  animation: float 6s ease-in-out infinite;
}

.animate-float-2 {
  animation: floatSlow 8s ease-in-out infinite;
  animation-delay: -2s;
}

.animate-float-3 {
  animation: float 7s ease-in-out infinite;
  animation-delay: -4s;
}