/* ==========================================================================
   Animations & Keyframes - Sagra del Borgo Antico di Montefiore
   All keyframe definitions and scroll-reveal animation classes.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Keyframes: Fade In variants
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

/* --------------------------------------------------------------------------
   Keyframes: Scale In
   -------------------------------------------------------------------------- */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* --------------------------------------------------------------------------
   Keyframes: Float (subtle up-down bob)
   -------------------------------------------------------------------------- */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* --------------------------------------------------------------------------
   Keyframes: Shimmer (loading / decorative shine)
   -------------------------------------------------------------------------- */
@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

/* --------------------------------------------------------------------------
   Keyframes: Pulse
   -------------------------------------------------------------------------- */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.85;
  }
}

/* --------------------------------------------------------------------------
   Keyframes: Marquee (horizontal scroll for sponsor track)
   -------------------------------------------------------------------------- */
@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* --------------------------------------------------------------------------
   Keyframes: Flip Down (countdown digit flip)
   -------------------------------------------------------------------------- */
@keyframes flipDown {
  0% {
    transform: perspective(400px) rotateX(90deg);
    opacity: 0;
  }
  100% {
    transform: perspective(400px) rotateX(0deg);
    opacity: 1;
  }
}

/* --------------------------------------------------------------------------
   Keyframes: Gradient Shift (animated gradient backgrounds)
   -------------------------------------------------------------------------- */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

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

/* --------------------------------------------------------------------------
   Keyframes: Spin (loading spinner)
   -------------------------------------------------------------------------- */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* --------------------------------------------------------------------------
   Scroll-reveal classes
   Elements start hidden and animate into view when JS adds .visible.
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Directional variants */
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Scale variant */
.reveal-scale {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --------------------------------------------------------------------------
   Staggered delay attributes
   Apply data-delay="1" through data-delay="8" for 0.1s increments.
   -------------------------------------------------------------------------- */
[data-delay="1"] { transition-delay: 0.1s; }
[data-delay="2"] { transition-delay: 0.2s; }
[data-delay="3"] { transition-delay: 0.3s; }
[data-delay="4"] { transition-delay: 0.4s; }
[data-delay="5"] { transition-delay: 0.5s; }
[data-delay="6"] { transition-delay: 0.6s; }
[data-delay="7"] { transition-delay: 0.7s; }
[data-delay="8"] { transition-delay: 0.8s; }

/* --------------------------------------------------------------------------
   Reduced motion: disable all animations for accessibility
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }

  [data-delay] {
    transition-delay: 0s;
  }
}