/* ============================================
   ANIMATIONS — Keyframes, Scroll Effects
   ============================================ */

/* ─── Fade In Up (Scroll Reveal) ─── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ─── Fade In Down ─── */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ─── Fade In Scale ─── */
@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ─── Slide In Right ─── */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ─── Slide In Left ─── */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ─── Scroll Reveal Classes ─── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out),
              transform 0.6s var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s var(--ease-out),
              transform 0.6s var(--ease-out);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s var(--ease-out),
              transform 0.6s var(--ease-out);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s var(--ease-out),
              transform 0.6s var(--ease-out);
}

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

/* Staggered Children */
.stagger-children .reveal:nth-child(1) { transition-delay: 0ms; }
.stagger-children .reveal:nth-child(2) { transition-delay: 100ms; }
.stagger-children .reveal:nth-child(3) { transition-delay: 200ms; }
.stagger-children .reveal:nth-child(4) { transition-delay: 300ms; }
.stagger-children .reveal:nth-child(5) { transition-delay: 400ms; }
.stagger-children .reveal:nth-child(6) { transition-delay: 500ms; }
.stagger-children .reveal:nth-child(7) { transition-delay: 600ms; }
.stagger-children .reveal:nth-child(8) { transition-delay: 700ms; }

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

/* ─── Bounce ─── */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* ─── Glow Pulse ─── */
@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.3), 0 0 60px rgba(6, 182, 212, 0.1);
  }
  50% {
    box-shadow: 0 0 30px rgba(6, 182, 212, 0.5), 0 0 80px rgba(6, 182, 212, 0.2);
  }
}

/* ─── Gradient Border Rotation ─── */
@keyframes gradientBorder {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ─── Typewriter Effect ─── */
.typewriter {
  overflow: hidden;
  white-space: nowrap;
  animation: typewriter 2s steps(40, end);
}

@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

/* ─── Counter Animation ─── */
.count-up {
  transition: all 2s var(--ease-out);
}

/* ─── Smooth Content Switch ─── */
.content-fade-enter {
  animation: contentFadeIn 0.4s var(--ease-out) forwards;
}

@keyframes contentFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.content-fade-exit {
  animation: contentFadeOut 0.2s var(--ease-out) forwards;
}

@keyframes contentFadeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}