/* ============================================================
   KEYFRAMES
   ============================================================ */

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

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideRight {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulseRing {
  0%   { box-shadow: 0 0 0 0 rgba(196, 98, 45, 0.4); }
  70%  { box-shadow: 0 0 0 14px rgba(196, 98, 45, 0); }
  100% { box-shadow: 0 0 0 0 rgba(196, 98, 45, 0); }
}

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


/* ============================================================
   SCROLL REVEAL
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

/* Stagger delays */
.reveal-delay-1 { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }
.reveal-delay-3 { transition-delay: 0.36s; }
.reveal-delay-4 { transition-delay: 0.48s; }


/* ============================================================
   HERO ENTRANCE
   ============================================================ */

/* Hero section: reset reveal for initial load, use animation instead */
.section-hero .hero-content.is-visible {
  animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.section-hero .hero-visual.is-visible {
  animation: scaleIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.15s both;
}


/* ============================================================
   STAT NUMBER COUNT-UP EFFECT
   ============================================================ */
.stat-number.is-visible {
  animation: fadeIn 0.5s ease forwards;
}


/* ============================================================
   CTA PULSE (pour le bouton principal hero)
   ============================================================ */
.btn-primary.btn-lg:not(:hover) {
  animation: pulseRing 2.5s cubic-bezier(0.455, 0.03, 0.515, 0.955) 3s infinite;
}

/* Arrêter le pulse au hover */
.btn-primary.btn-lg:hover {
  animation: none;
}


/* ============================================================
   HEADER FADE-IN ON LOAD
   ============================================================ */
.site-header {
  animation: fadeIn 0.6s ease 0.1s both;
}


/* ============================================================
   STEP NUMBER (stagger visuel)
   ============================================================ */
.step-card:nth-child(1) { transition-delay: 0s; }
.step-card:nth-child(2) { transition-delay: 0.12s; }
.step-card:nth-child(3) { transition-delay: 0.24s; }


/* ============================================================
   BENEFIT CARD HOVER GLOW
   ============================================================ */
.benefit-card:hover .benefit-icon {
  transform: scale(1.08) rotate(-4deg);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.benefit-icon {
  transition: transform 0.3s ease;
}


/* ============================================================
   TESTIMONIAL CARD ENTRANCE
   ============================================================ */
.testimonial-card.is-visible {
  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}


/* ============================================================
   SHIMMER LOADING (pour images placeholder)
   ============================================================ */
.hero-img-placeholder,
.step-img-placeholder,
.product-img-placeholder {
  background: linear-gradient(
    90deg,
    var(--color-linen) 25%,
    var(--color-cream) 50%,
    var(--color-linen) 75%
  );
  background-size: 200% auto;
  animation: shimmer 1.8s linear infinite;
}


/* ============================================================
   ECO STATS ENTRANCE
   ============================================================ */
.eco-stat {
  transition: background var(--transition-normal), transform var(--transition-slow), opacity var(--transition-slow);
}

.eco-stat.reveal.is-visible:nth-child(1) { transition-delay: 0s; }
.eco-stat.reveal.is-visible:nth-child(3) { transition-delay: 0.15s; }
.eco-stat.reveal.is-visible:nth-child(5) { transition-delay: 0.3s; }


/* ============================================================
   MOBILE: RÉDUIRE LES ANIMATIONS
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-badge-float { animation: none; }
  .btn-primary.btn-lg:not(:hover) { animation: none; }

  .hero-img-placeholder,
  .step-img-placeholder,
  .product-img-placeholder {
    animation: none;
    background: var(--color-linen);
  }
}