/* ==========================================================================
   ANIMATIONS.CSS — Sagra San Giuseppe
   Keyframe animations, scroll reveal system, and motion utilities.
   ========================================================================== */

/* ==========================================================================
   1. KEYFRAMES
   ========================================================================== */

/* --------------------------------------------------------------------------
   Bounce — for scroll indicator chevron
   -------------------------------------------------------------------------- */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-8px);
  }
  60% {
    transform: translateY(-4px);
  }
}

/* --------------------------------------------------------------------------
   Fade In — simple opacity fade
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* --------------------------------------------------------------------------
   Fade In Up — opacity + upward slide
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   Fade In Down — opacity + downward slide
   -------------------------------------------------------------------------- */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   Bloom — scale up with opacity (like a flower opening)
   -------------------------------------------------------------------------- */
@keyframes bloom {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* --------------------------------------------------------------------------
   Petal Spin — rotation for page loader petals
   -------------------------------------------------------------------------- */
@keyframes petalSpin {
  0% {
    opacity: 0.3;
    transform: translate(-50%, -50%) rotate(var(--petal-rotation, 0deg)) translateY(-8px) scale(0.85);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(var(--petal-rotation, 0deg)) translateY(-8px) scale(1.1);
  }
  100% {
    opacity: 0.3;
    transform: translate(-50%, -50%) rotate(var(--petal-rotation, 0deg)) translateY(-8px) scale(0.85);
  }
}

/* --------------------------------------------------------------------------
   Shimmer — gradient sweep for loading states
   -------------------------------------------------------------------------- */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* --------------------------------------------------------------------------
   Pulse — gentle scale pulse
   -------------------------------------------------------------------------- */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* --------------------------------------------------------------------------
   Float — gentle up-down float (for decorative elements)
   -------------------------------------------------------------------------- */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* --------------------------------------------------------------------------
   Sway — gentle left-right sway (like a flower in the wind)
   -------------------------------------------------------------------------- */
@keyframes sway {
  0%, 100% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(2deg);
  }
  75% {
    transform: rotate(-2deg);
  }
}

/* --------------------------------------------------------------------------
   Spin — continuous rotation (for loading states)
   -------------------------------------------------------------------------- */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* --------------------------------------------------------------------------
   Count Up — for stat counters (visual only, JS drives the actual count)
   -------------------------------------------------------------------------- */
@keyframes countPop {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.15);
  }
  100% {
    transform: scale(1);
  }
}


/* ==========================================================================
   2. SCROLL REVEAL SYSTEM
   ==========================================================================
   Elements start hidden and transition to visible when they enter the
   viewport (triggered by IntersectionObserver in JS).
   ========================================================================== */

/* Base reveal state — hidden */
.reveal {
  opacity: 0;
  transform: translateY(20px) scale(0.97);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
  will-change: opacity, transform;
}

/* Visible state — shown */
.reveal.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Direction variants */
.reveal--left {
  transform: translateX(-30px) scale(0.97);
}

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

.reveal--right {
  transform: translateX(30px) scale(0.97);
}

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

.reveal--up {
  transform: translateY(30px) scale(0.97);
}

.reveal--up.visible {
  transform: translateY(0) scale(1);
}

.reveal--zoom {
  transform: scale(0.9);
}

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

/* --------------------------------------------------------------------------
   Staggered animation delays
   --------------------------------------------------------------------------
   Use data-delay attribute on elements for cascading reveal effects.
   Values represent stagger index (1-12).
   -------------------------------------------------------------------------- */
.reveal[data-delay="1"]  { transition-delay: 50ms;  }
.reveal[data-delay="2"]  { transition-delay: 100ms; }
.reveal[data-delay="3"]  { transition-delay: 150ms; }
.reveal[data-delay="4"]  { transition-delay: 200ms; }
.reveal[data-delay="5"]  { transition-delay: 250ms; }
.reveal[data-delay="6"]  { transition-delay: 300ms; }
.reveal[data-delay="7"]  { transition-delay: 350ms; }
.reveal[data-delay="8"]  { transition-delay: 400ms; }
.reveal[data-delay="9"]  { transition-delay: 450ms; }
.reveal[data-delay="10"] { transition-delay: 500ms; }
.reveal[data-delay="11"] { transition-delay: 550ms; }
.reveal[data-delay="12"] { transition-delay: 600ms; }


/* ==========================================================================
   3. ANIMATION UTILITY CLASSES
   ========================================================================== */

/* Apply shimmer loading effect */
.shimmer {
  background: linear-gradient(
    90deg,
    var(--color-cream) 25%,
    var(--color-primary-pale) 50%,
    var(--color-cream) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease infinite;
}

/* Apply floating effect */
.anim-float {
  animation: float 3s ease-in-out infinite;
}

/* Apply swaying effect */
.anim-sway {
  animation: sway 4s ease-in-out infinite;
  transform-origin: bottom center;
}

/* Apply pulsing effect */
.anim-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Apply spinning effect */
.anim-spin {
  animation: spin 1s linear infinite;
}

/* Apply count pop effect (for JS to trigger) */
.anim-count-pop {
  animation: countPop 0.4s ease;
}