/* ============================================
   ANIMATIONS — Keyframes & Scroll Reveals
   ============================================ */

/* ── Reveal States ── */
.reveal {
  opacity: 0;
  transform: translateY(1.875rem);
  transition: 
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-1.875rem);
  transition: 
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(1.875rem);
  transition: 
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: 
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

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

/* ── Stagger delays ── */
.stagger-1 { transition-delay: 0ms; }
.stagger-2 { transition-delay: 80ms; }
.stagger-3 { transition-delay: 160ms; }
.stagger-4 { transition-delay: 240ms; }
.stagger-5 { transition-delay: 320ms; }
.stagger-6 { transition-delay: 400ms; }
.stagger-7 { transition-delay: 480ms; }
.stagger-8 { transition-delay: 560ms; }

/* ── Keyframes ── */

/* Fade in up */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(1.875rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Scale in (spring) */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Float up and down (idle) */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-0.5rem); }
}

/* Pulse glow */
@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 1.25rem rgba(99, 102, 241, 0.2);
  }
  50% {
    box-shadow: 0 0 2.5rem rgba(99, 102, 241, 0.4);
  }
}

/* Scroll indicator bounce */
@keyframes scrollBounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-0.5rem);
  }
  60% {
    transform: translateY(-0.25rem);
  }
}

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

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

/* Mesh animation */
@keyframes meshMove {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(1.875rem, -1.25rem) scale(1.05);
  }
  66% {
    transform: translate(-1.25rem, 0.9375rem) scale(0.95);
  }
}

@keyframes meshMove2 {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(-1.5625rem, 0.9375rem) scale(0.95);
  }
  66% {
    transform: translate(1.25rem, -1.5625rem) scale(1.05);
  }
}

/* Spin (subtle, for decorative elements) */
@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Confetti burst */
@keyframes confettiFall {
  0% {
    opacity: 1;
    transform: translateY(0) rotate(0deg) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(100vh) rotate(720deg) scale(0.5);
  }
}

@keyframes confettiLaunch {
  0% {
    opacity: 0;
    transform: translateY(0) scale(0);
  }
  10% {
    opacity: 1;
    transform: translateY(-1.25rem) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(100vh) rotate(720deg) scale(0.3);
  }
}

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

/* Photo hover zoom */
@keyframes photoReveal {
  from {
    opacity: 0;
    transform: scale(1.1);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ── Utility Animation Classes ── */
.animate-float {
  animation: float 4s ease-in-out infinite;
}

.animate-pulse-glow {
  animation: pulseGlow 3s ease-in-out infinite;
}

.animate-spin-slow {
  animation: spinSlow 20s linear infinite;
}

.animate-shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 3s ease-in-out infinite;
}

/* ── Lightbox ── */
@keyframes lightboxIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes lightboxSlideFromRight {
  from {
    opacity: 0;
    transform: translateX(15%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes lightboxSlideFromLeft {
  from {
    opacity: 0;
    transform: translateX(-15%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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