/* ============================================================================
   Animations & Scroll Reveal
   ============================================================================ */

/* ========================================================================
 * KEYFRAME DEFINITIONS
 * ======================================================================== */

/* Mesh gradient animation for hero background */
@keyframes meshGradient {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Fade and slide variations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@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);
  }
}

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

/* Pulse for CTA buttons */
@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(52, 211, 153, 0);
  }
}

/* Floating decorative elements */
@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-15px) rotate(3deg);
  }
}

/* Shimmer effect */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* Progress bar fill */
@keyframes progressFill {
  from {
    width: 0%;
  }
  to {
    width: 100%;
  }
}

/* Scroll hint bounce */
@keyframes scrollBounce {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.6;
  }
  50% {
    transform: translateY(8px);
    opacity: 1;
  }
}

/* Footer gradient border */
@keyframes footerGradient {
  0% { background-position: 0% 0; }
  100% { background-position: 200% 0; }
}

/* ========================================================================
 * SCROLL-TRIGGERED REVEAL SYSTEM
 * Elements start hidden, animate when .is-visible is added by JS
 * ======================================================================== */

/* Base state for all reveal elements */
[data-reveal] {
  opacity: 0;
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
}

/* Reveal from bottom (default) */
[data-reveal="up"] {
  transform: translateY(40px);
}

[data-reveal="up"].is-visible {
  transform: translateY(0);
}

/* Reveal from top */
[data-reveal="down"] {
  transform: translateY(-40px);
}

[data-reveal="down"].is-visible {
  transform: translateY(0);
}

/* Reveal from left */
[data-reveal="left"] {
  transform: translateX(-40px);
}

[data-reveal="left"].is-visible {
  transform: translateX(0);
}

/* Reveal from right */
[data-reveal="right"] {
  transform: translateX(40px);
}

[data-reveal="right"].is-visible {
  transform: translateX(0);
}

/* Scale in */
[data-reveal="scale"] {
  transform: scale(0.9);
}

[data-reveal="scale"].is-visible {
  transform: scale(1);
}

/* Fade only (no movement) */
[data-reveal="fade"] {
  /* Just opacity, no transform */
}

[data-reveal="fade"].is-visible {
  /* Just opacity */
}

/* ========================================================================
 * STAGGER DELAYS
 * ======================================================================== */

[data-reveal-delay="1"] { transition-delay: 100ms; }
[data-reveal-delay="2"] { transition-delay: 200ms; }
[data-reveal-delay="3"] { transition-delay: 300ms; }
[data-reveal-delay="4"] { transition-delay: 400ms; }
[data-reveal-delay="5"] { transition-delay: 500ms; }
[data-reveal-delay="6"] { transition-delay: 600ms; }

/* ========================================================================
 * UTILITY ANIMATION CLASSES
 * ======================================================================== */

.animate-pulse {
  animation: pulse 3s var(--ease-in-out) infinite;
}

.animate-pulse:hover {
  animation: none;
}

.animate-float {
  animation: float 6s var(--ease-in-out) infinite;
}

.animate-shimmer {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.15) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s linear infinite;
}

/* ========================================================================
 * REDUCED MOTION
 * ======================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

}