/* ==========================================================
   ANIMATIONS — Keyframes, Motion Utilities
   ========================================================== */

/* --- Keyframes --- */
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-18px); }
}

@keyframes floatX {
  0%, 100% { transform: translateX(0); }
  50%       { transform: translateX(10px); }
}

@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes spinSlowReverse {
  from { transform: rotate(360deg); }
  to   { transform: rotate(0deg); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.06); opacity: 0.85; }
}

@keyframes 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% 60% 40% 60%; }
  75%       { border-radius: 60% 40% 60% 30% / 70% 30% 60% 40%; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeLeft {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeRight {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 1; transform: scale(1); }
}

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

@keyframes blobDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -20px) scale(1.05); }
  66%       { transform: translate(-20px, 15px) scale(0.97); }
}

@keyframes dotBounce {
  0%, 80%, 100% { transform: scale(0); }
  40%           { transform: scale(1); }
}

@keyframes drawLine {
  from { stroke-dashoffset: 1000; }
  to   { stroke-dashoffset: 0; }
}

/* --- Scroll Reveal Classes (populated by JS IntersectionObserver) --- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--t-slow) var(--ease-out) var(--delay, 0s),
    transform var(--t-slow) var(--ease-out) var(--delay, 0s);
}

.reveal.from-left {
  transform: translateX(-28px);
}

.reveal.from-right {
  transform: translateX(28px);
}

.reveal.scale {
  transform: scale(0.92);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* --- Background Blobs (Hero decoration) --- */
.blob {
  position: absolute;
  border-radius: 50%;
  animation: blobDrift var(--blob-duration, 20s) ease-in-out infinite var(--blob-delay, 0s);
  pointer-events: none;
  will-change: transform;
}

/* --- Float Animation (Hero illustration) --- */
.float {
  animation: floatY 4s ease-in-out infinite;
  will-change: transform;
}

.float-slow {
  animation: floatY 6s ease-in-out infinite;
  will-change: transform;
}

/* --- Spin --- */
.spin-slow {
  animation: spinSlow 18s linear infinite;
}

.spin-slow-reverse {
  animation: spinSlowReverse 24s linear infinite;
}

/* --- Pulse --- */
.pulse {
  animation: pulse 3s ease-in-out infinite;
}

/* --- Morph --- */
.morph {
  animation: morph 12s ease-in-out infinite;
}

/* --- Stagger children --- */
.stagger > *:nth-child(1) { --delay: 0s; }
.stagger > *:nth-child(2) { --delay: 0.1s; }
.stagger > *:nth-child(3) { --delay: 0.2s; }
.stagger > *:nth-child(4) { --delay: 0.3s; }
.stagger > *:nth-child(5) { --delay: 0.4s; }
.stagger > *:nth-child(6) { --delay: 0.5s; }
.stagger > *:nth-child(7) { --delay: 0.6s; }

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.15s !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.15s;
  }
}