/*
 * ╔══════════════════════════════════════════════════════╗
 * ║  SEMENTES DE FÉ — ANIMATIONS                         ║
 * ║  04-animations.css                                    ║
 * ║                                                       ║
 * ║  Keyframes + scroll-reveal system.                    ║
 * ║  One orchestrated entrance per section.               ║
 * ║  Never scatter animations — use staggered delays.     ║
 * ╚══════════════════════════════════════════════════════╝
 */


/* ─── KEYFRAMES ─── */

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

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.94);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slide-right {
  from {
    opacity: 0;
    transform: translateX(-18px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slide-left {
  from {
    opacity: 0;
    transform: translateX(18px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse-ring {
  0%   { transform: scale(1);   opacity: 0.6; }
  60%  { transform: scale(1.18); opacity: 0; }
  100% { transform: scale(1.18); opacity: 0; }
}

@keyframes sprout {
  0%   { transform: scale(0) rotate(-20deg); opacity: 0; }
  60%  { transform: scale(1.15) rotate(5deg); opacity: 1; }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

@keyframes draw-line {
  from { stroke-dashoffset: 200; }
  to   { stroke-dashoffset: 0; }
}


/* ─── HERO ENTRANCE ─── */
/* Elements in hero animate in on load, staggered */

.hero-anim > * {
  animation: fade-up var(--duration-slower) var(--ease-out) both;
}
.hero-anim > *:nth-child(1) { animation-delay: 60ms; }
.hero-anim > *:nth-child(2) { animation-delay: 140ms; }
.hero-anim > *:nth-child(3) { animation-delay: 220ms; }
.hero-anim > *:nth-child(4) { animation-delay: 290ms; }
.hero-anim > *:nth-child(5) { animation-delay: 360ms; }

.hero-anim--vsl {
  animation: scale-in 700ms var(--ease-out) 440ms both;
}

/* SVG underline draws in */
.svg-underline path {
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
  animation: draw-line 800ms var(--ease-out) 300ms forwards;
}


/* ─── SCROLL REVEAL ─── */
/* JS adds .is-visible when element enters viewport */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity  var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--left {
  opacity: 0;
  transform: translateX(-20px);
  transition:
    opacity  var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}
.reveal--left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal--right {
  opacity: 0;
  transform: translateX(20px);
  transition:
    opacity  var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}
.reveal--right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal--scale {
  opacity: 0;
  transform: scale(0.95);
  transition:
    opacity  var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-spring);
}
.reveal--scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays for grid children */
.stagger > *:nth-child(1) { transition-delay: 0ms; }
.stagger > *:nth-child(2) { transition-delay: 80ms; }
.stagger > *:nth-child(3) { transition-delay: 160ms; }
.stagger > *:nth-child(4) { transition-delay: 240ms; }
.stagger > *:nth-child(5) { transition-delay: 320ms; }
.stagger > *:nth-child(6) { transition-delay: 400ms; }

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal--left,
  .reveal--right,
  .reveal--scale,
  .hero-anim > *,
  .hero-anim--vsl {
    animation: none;
    transition: none;
    opacity: 1;
    transform: none;
  }
}