/* ============================================================
   css/animations.css — All Animations & Transitions
   NB Nexa | AI Automation Agency
   ============================================================ */

/* ── FADE IN UP ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── FADE IN DOWN ── */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── FADE IN ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── SLIDE IN LEFT ── */
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-32px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── SLIDE IN RIGHT ── */
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(32px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── SCALE IN ── */
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

/* ── SPIN SLOW ── */
@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.animate-spin-slow { animation: spin-slow 20s linear infinite; }

/* ── PULSE ── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}
.animate-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }

/* ── FLOAT ── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}
.animate-float { animation: float 6s ease-in-out infinite; }

/* ── GLOW PULSE ── */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 219, 233, 0.3); }
  50%       { box-shadow: 0 0 40px rgba(0, 219, 233, 0.6), 0 0 60px rgba(0, 219, 233, 0.2); }
}
.animate-glow { animation: glowPulse 3s ease-in-out infinite; }

/* ── GRADIENT SHIFT ── */
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.animate-gradient {
  background-size: 200% 200%;
  animation: gradientShift 4s ease infinite;
}

/* ── STAGGER UTILITY CLASSES ── */
.anim-1 { animation: fadeInUp 0.6s ease both; animation-delay: 0.1s; }
.anim-2 { animation: fadeInUp 0.6s ease both; animation-delay: 0.2s; }
.anim-3 { animation: fadeInUp 0.6s ease both; animation-delay: 0.3s; }
.anim-4 { animation: fadeInUp 0.6s ease both; animation-delay: 0.4s; }
.anim-5 { animation: fadeInUp 0.6s ease both; animation-delay: 0.5s; }

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── HOVER LIFT ── */
.hover-lift {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* ── SHIMMER ── */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}
.shimmer {
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.05) 50%, rgba(255,255,255,0) 100%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* ── TYPING CURSOR ── */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}
.cursor-blink { animation: blink 1s step-end infinite; }

/* ── COUNTER ── */
.counter-value {
  transition: all 0.5s ease;
}

/* ── TRANSITION PRESETS ── */
.transition-fast   { transition: all 0.15s ease; }
.transition-mid    { transition: all 0.3s ease; }
.transition-smooth { transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1); }

/* ── HEADING & SUBHEADING (scroll-in; toggled by js/main.js) ── */
.heading-anim {
  opacity: 0;
  transform: translate3d(0, 0.5em, 0);
  filter: blur(0.5px);
  transition:
    opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.75s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.6s ease;
  transition-delay: var(--heading-anim-delay, 0s);
  will-change: opacity, transform;
}
.heading-anim.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  filter: blur(0);
}
.heading-sub-anim {
  opacity: 0;
  transform: translate3d(0, 0.35em, 0);
  transition:
    opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1) 0.06s,
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1) 0.06s;
  transition-delay: var(--heading-sub-delay, 0s);
  will-change: opacity, transform;
}
.heading-sub-anim.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}
@media (prefers-reduced-motion: reduce) {
  .heading-anim,
  .heading-sub-anim {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
  }
}