/* ============================================================
   ANIMATIONS — VisionForge Technologies
   Global keyframes and reusable animation classes.
   All animations respect prefers-reduced-motion.
   ============================================================ */

/* ─────────────────────────────────────────────
   KEYFRAMES
───────────────────────────────────────────── */

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

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

/* Slide + Fade */
@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDownFade {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideLeftFade {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideRightFade {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scale */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.94);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes scaleOut {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.94);
  }
}

/* Gradient shift */
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

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

/* Pulse */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

/* Ping (ripple) */
@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}

/* Shimmer (skeleton loading) */
@keyframes shimmer {
  from { background-position: -200% center; }
  to   { background-position: 200% center; }
}

/* Float */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

/* Float — reduced travel for top-positioned cards */
@keyframes float-sm {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-7px); }
}

/* Glow pulse */
@keyframes glowPulse {
  0%, 100% {
    filter: drop-shadow(0 0 20px rgba(27, 142, 248, 0.40));
  }
  50% {
    filter: drop-shadow(0 0 40px rgba(27, 142, 248, 0.70));
  }
}

/* Counter */
@keyframes countUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Blink cursor */
@keyframes blink {
  0%, 50%  { opacity: 1; }
  51%, 100%{ opacity: 0; }
}

/* Text reveal clip */
@keyframes textReveal {
  from { clip-path: inset(0 100% 0 0); }
  to   { clip-path: inset(0 0% 0 0); }
}

/* Underline grow */
@keyframes underlineGrow {
  from { transform: scaleX(0); transform-origin: left; }
  to   { transform: scaleX(1); transform-origin: left; }
}

/* Scroll indicator */
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50%       { transform: translateY(6px); opacity: 0.5; }
}

/* ─────────────────────────────────────────────
   ANIMATION UTILITY CLASSES
───────────────────────────────────────────── */

/* Entrance animations — triggered by .is-visible or direct class */
.anim-fade-in {
  animation: fadeIn var(--duration-slow) var(--ease-out) both;
}

.anim-slide-up {
  animation: slideUpFade var(--duration-slow) var(--ease-out) both;
}

.anim-slide-down {
  animation: slideDownFade var(--duration-moderate) var(--ease-out) both;
}

.anim-slide-left {
  animation: slideLeftFade var(--duration-slow) var(--ease-out) both;
}

.anim-slide-right {
  animation: slideRightFade var(--duration-slow) var(--ease-out) both;
}

.anim-scale-in {
  animation: scaleIn var(--duration-moderate) var(--ease-bounce) both;
}

/* Loop animations */
.anim-spin {
  animation: spin var(--duration-slower) var(--ease-linear) infinite;
}

.anim-pulse {
  animation: pulse 2.4s var(--ease-in-out) infinite;
}

.anim-float {
  animation: float 4s var(--ease-in-out) infinite;
}

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

.anim-gradient {
  background-size: 200% 200%;
  animation: gradientShift 4s var(--ease-in-out) infinite;
}

/* Scroll hint */
.anim-scroll-bounce {
  animation: scrollBounce 1.6s var(--ease-in-out) infinite;
}

/* ─────────────────────────────────────────────
   DELAY HELPERS
───────────────────────────────────────────── */
.anim-delay-100 { animation-delay: 100ms; }
.anim-delay-200 { animation-delay: 200ms; }
.anim-delay-300 { animation-delay: 300ms; }
.anim-delay-400 { animation-delay: 400ms; }
.anim-delay-500 { animation-delay: 500ms; }
.anim-delay-600 { animation-delay: 600ms; }
.anim-delay-700 { animation-delay: 700ms; }
.anim-delay-800 { animation-delay: 800ms; }
.anim-delay-900 { animation-delay: 900ms; }
.anim-delay-1000{ animation-delay: 1000ms; }

/* ─────────────────────────────────────────────
   SCROLL REVEAL (JS-driven)
   Elements start invisible; JS adds .is-visible
───────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-moderate) var(--ease-out),
              transform var(--duration-moderate) var(--ease-out);
}

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

.reveal--left {
  transform: translateX(-20px);
}

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

.reveal--right {
  transform: translateX(20px);
}

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

.reveal--scale {
  transform: scale(0.95);
}

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

/* Stagger (used with JS data attributes) */
.reveal[data-stagger="1"] { transition-delay: 60ms; }
.reveal[data-stagger="2"] { transition-delay: 120ms; }
.reveal[data-stagger="3"] { transition-delay: 180ms; }
.reveal[data-stagger="4"] { transition-delay: 240ms; }
.reveal[data-stagger="5"] { transition-delay: 300ms; }
.reveal[data-stagger="6"] { transition-delay: 360ms; }
.reveal[data-stagger="7"] { transition-delay: 420ms; }
.reveal[data-stagger="8"] { transition-delay: 480ms; }

/* ─────────────────────────────────────────────
   SKELETON LOADING
───────────────────────────────────────────── */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-elevated) 0%,
    var(--color-bg-raised) 50%,
    var(--color-bg-elevated) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.8s var(--ease-in-out) infinite;
  border-radius: var(--radius-sm);
}

/* ─────────────────────────────────────────────
   HOVER TRANSITIONS (non-animated defaults)
───────────────────────────────────────────── */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.hover-scale {
  transition: transform var(--duration-normal) var(--ease-bounce);
}

.hover-scale:hover {
  transform: scale(1.03);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow-md);
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

/* ─────────────────────────────────────────────
   REDUCED MOTION OVERRIDE
───────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .anim-fade-in,
  .anim-slide-up,
  .anim-slide-down,
  .anim-slide-left,
  .anim-slide-right,
  .anim-scale-in {
    animation: fadeIn var(--duration-quick) var(--ease-out) both;
  }

  .anim-spin,
  .anim-pulse,
  .anim-float,
  .anim-glow-pulse,
  .anim-gradient,
  .anim-scroll-bounce,
  .ap-team-card {
    animation: none;
  }

  .reveal,
  .reveal--left,
  .reveal--right,
  .reveal--scale {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hover-lift:hover,
  .hover-scale:hover {
    transform: none;
  }

  .skeleton {
    animation: none;
    background: var(--color-bg-elevated);
  }
}