/* ============================================================
   CRIÉE CÔTE D'ALBÂTRE — animations.css
   Animations, transitions et effets scroll
   ============================================================ */

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

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-32px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(4,153,154,0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(4,153,154,0);
  }
}

@keyframes pulseWhite {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(255,255,255,0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(255,255,255,0);
  }
}

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

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ── RÉVÉLATION AU SCROLL ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

.reveal.scale {
  transform: scale(0.94);
}

.reveal.is-visible {
  opacity: 1;
  transform: translate(0, 0) scale(1);
}

/* Délai en cascade via data-delay */
.reveal[data-delay="100"] { transition-delay: 0.1s; }
.reveal[data-delay="150"] { transition-delay: 0.15s; }
.reveal[data-delay="200"] { transition-delay: 0.2s; }
.reveal[data-delay="250"] { transition-delay: 0.25s; }
.reveal[data-delay="300"] { transition-delay: 0.3s; }
.reveal[data-delay="350"] { transition-delay: 0.35s; }
.reveal[data-delay="400"] { transition-delay: 0.4s; }
.reveal[data-delay="500"] { transition-delay: 0.5s; }
.reveal[data-delay="600"] { transition-delay: 0.6s; }

/* ── HERO ANIMATIONS ────────────────────────────────────────── */
.hero__content > * {
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.hero__content .hero__eyebrow  { animation-delay: 0.1s; }
.hero__content h1              { animation-delay: 0.25s; }
.hero__content .hero__text     { animation-delay: 0.4s; }
.hero__content .btn-group      { animation-delay: 0.55s; }

/* ── NAVIGATION ─────────────────────────────────────────────── */
/* Underline animée sur les liens nav */
.nav__link {
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-spring);
  border-radius: var(--radius-full);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
}

/* ── HEADER SCROLLED ────────────────────────────────────────── */
.site-header {
  transition:
    background-color var(--transition-base),
    box-shadow var(--transition-base),
    backdrop-filter var(--transition-base);
}

.site-header.scrolled {
  background-color: rgba(250,247,242,0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}

/* ── COUNTER ANIMATION ──────────────────────────────────────── */
.stat-number.counting {
  animation: scaleIn 0.4s ease both;
}

/* ── MOBILE MENU ANIMATION ──────────────────────────────────── */
.mobile-menu {
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-overlay {
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-overlay.is-open {
  opacity: 1;
  pointer-events: all;
}

/* ── ACCORDION ANIMATION ────────────────────────────────────── */
.accordion__icon {
  transition: transform var(--transition-base), background-color var(--transition-fast);
}

/* ── HOVER SUR CARD ─────────────────────────────────────────── */
.card-hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* ── DONUT / GRAPH ──────────────────────────────────────────── */
.donut-chart circle.track {
  transition: stroke-dasharray 0s;
}

.donut-chart circle.fill {
  stroke-dasharray: 0 100;
  transition: stroke-dasharray 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.donut-chart.is-animated circle.fill {
  stroke-dasharray: var(--fill-value, 0) 100;
}

/* ── PAGE TRANSITIONS ───────────────────────────────────────── */
.page-enter {
  animation: fadeIn 0.4s ease both;
}

/* ── PULSE CTA ──────────────────────────────────────────────── */
.btn--pulse {
  animation: pulse 2.5s ease infinite;
}

.btn--pulse-white {
  animation: pulseWhite 2.5s ease infinite;
}

/* ── SKELETON LOADING ───────────────────────────────────────── */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-warm) 25%,
    var(--color-border) 50%,
    var(--color-bg-warm) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ── SCROLL INDICATOR ───────────────────────────────────────── */
.hero__scroll-arrow {
  animation: bounceArrow 2s ease-in-out infinite;
}

/* ── IMAGE REVEAL ───────────────────────────────────────────── */
.img-reveal {
  overflow: hidden;
}

.img-reveal img {
  transition: transform var(--transition-slow);
}

.img-reveal:hover img {
  transform: scale(1.04);
}

/* ── RÉDUCTION DES ANIMATIONS (accessibilité) ───────────────── */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal.from-left,
  .reveal.from-right,
  .reveal.scale {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero__content > * {
    animation: none;
  }

  .hero__scroll-arrow {
    animation: none;
  }

  .btn--pulse,
  .btn--pulse-white {
    animation: none;
  }

  .mobile-menu {
    transition: none;
  }

  .site-header {
    transition: none;
  }

  .accordion__answer {
    transition: none;
  }

  .donut-chart circle.fill {
    transition: none;
  }
}