/* ═══════════════════════════════════════════════════════════════
   ANIMATIONS
   Keyframes, Reveal System, Micro-interactions
   ═══════════════════════════════════════════════════════════════ */

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

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  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 fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

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

@keyframes slideUp {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.6; }
}

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

@keyframes float-slow {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(-8px) rotate(2deg); }
}

@keyframes gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes counter-fill {
  from { width: 0; }
}

@keyframes blob-morph {
  0%, 100% {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  }
  25% {
    border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
  }
  50% {
    border-radius: 50% 60% 30% 60% / 30% 40% 70% 60%;
  }
  75% {
    border-radius: 60% 30% 60% 40% / 70% 50% 40% 60%;
  }
}


/* ── Reveal System (Intersection Observer) ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--duration-slower) var(--ease-out-expo),
    transform var(--duration-slower) var(--ease-out-expo);
  will-change: opacity, transform;
}

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

/* Direction Variants */
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition:
    opacity var(--duration-slower) var(--ease-out-expo),
    transform var(--duration-slower) var(--ease-out-expo);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition:
    opacity var(--duration-slower) var(--ease-out-expo),
    transform var(--duration-slower) var(--ease-out-expo);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition:
    opacity var(--duration-slower) var(--ease-out-expo),
    transform var(--duration-slower) var(--ease-out-expo);
}

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

/* Stagger Delays */
.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }
.reveal-delay-5 { transition-delay: 500ms; }
.reveal-delay-6 { transition-delay: 600ms; }
.reveal-delay-7 { transition-delay: 700ms; }
.reveal-delay-8 { transition-delay: 800ms; }

/* ── Hero Animations ── */
.hero-animate {
  animation: fadeInUp 1s var(--ease-out-expo) forwards;
  opacity: 0;
}

.hero-animate-delay-1 { animation-delay: 0.15s; }
.hero-animate-delay-2 { animation-delay: 0.3s; }
.hero-animate-delay-3 { animation-delay: 0.45s; }
.hero-animate-delay-4 { animation-delay: 0.6s; }

/* ── Gradient Background Animation ── */
.animated-gradient {
  background-size: 200% 200%;
  animation: gradient-shift 8s ease infinite;
}

/* ── Blob Decoration ── */
.blob {
  position: absolute;
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  animation: blob-morph 10s ease-in-out infinite;
  filter: blur(60px);
  opacity: 0.15;
  pointer-events: none;
}

/* ── Shimmer Effect ── */
.shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.08) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 3s 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;
  }

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

  .hero-animate {
    opacity: 1;
    animation: none;
  }
}