/* =========================================================================
   ANIMATIONS — keyframes, états de révélation, réduction des animations
   ========================================================================= */

@keyframes ping {
  75%, 100% {
    transform: scale(2.4);
    opacity: 0;
  }
}

@keyframes blink {
  0%, 45% { opacity: 1; }
  50%, 95% { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes lineUp {
  to { transform: translateY(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: none; }
}

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

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: none; }
}

@keyframes slideLeft {
  from { opacity: 0; transform: translateX(-16px); }
  to { opacity: 1; transform: none; }
}

@keyframes flow {
  0% { transform: translateY(-12px); opacity: 0; }
  35% { opacity: 1; }
  100% { transform: translateY(26px); opacity: 0; }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

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

@keyframes bootLine {
  from { opacity: 0; transform: translateX(-6px); }
  to { opacity: 1; transform: none; }
}

@keyframes breathe {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

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

@keyframes glowPulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

@keyframes pf-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.82); }
}

@keyframes gridDrift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 68px 68px, 68px 68px; }
}

@keyframes waveIn {
  0% { transform: scaleY(0.2); opacity: 0; }
  100% { transform: scaleY(1); opacity: 1; }
}

@keyframes typingCursor {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* ---------------------------- Révélation au scroll ---------------------------- */
/* Les états initiaux sont scopés à `.js` : sans JavaScript, tout reste visible. */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 780ms var(--ease-out),
    transform 780ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

.js [data-reveal="left"] {
  transform: translateX(-28px);
}

.js [data-reveal="right"] {
  transform: translateX(28px);
}

.js [data-reveal="scale"] {
  transform: scale(0.96);
}

.js [data-reveal="fade"] {
  transform: none;
}

.is-revealed {
  opacity: 1 !important;
  transform: none !important;
}

/* Révélation en cascade : chaque enfant a son propre délai */
.js .stagger > * {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 700ms var(--ease-out),
    transform 700ms var(--ease-out);
}

.stagger.is-revealed > * {
  opacity: 1;
  transform: none;
}

.stagger.is-revealed > *:nth-child(1) { transition-delay: 40ms; }
.stagger.is-revealed > *:nth-child(2) { transition-delay: 110ms; }
.stagger.is-revealed > *:nth-child(3) { transition-delay: 180ms; }
.stagger.is-revealed > *:nth-child(4) { transition-delay: 250ms; }
.stagger.is-revealed > *:nth-child(5) { transition-delay: 320ms; }
.stagger.is-revealed > *:nth-child(6) { transition-delay: 390ms; }
.stagger.is-revealed > *:nth-child(7) { transition-delay: 460ms; }
.stagger.is-revealed > *:nth-child(8) { transition-delay: 530ms; }
.stagger.is-revealed > *:nth-child(9) { transition-delay: 600ms; }
.stagger.is-revealed > *:nth-child(10) { transition-delay: 670ms; }
.stagger.is-revealed > *:nth-child(11) { transition-delay: 740ms; }
.stagger.is-revealed > *:nth-child(12) { transition-delay: 810ms; }

/* ---------------------------- Textes animés ---------------------------- */

.js .reveal-text span {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.6em) rotateX(-45deg);
  transition: opacity 620ms var(--ease-out), transform 620ms var(--ease-out);
}

.reveal-text.is-revealed span {
  opacity: 1;
  transform: none;
}

.reveal-text.is-revealed span:nth-child(1) { transition-delay: 30ms; }
.reveal-text.is-revealed span:nth-child(2) { transition-delay: 90ms; }
.reveal-text.is-revealed span:nth-child(3) { transition-delay: 150ms; }
.reveal-text.is-revealed span:nth-child(4) { transition-delay: 210ms; }
.reveal-text.is-revealed span:nth-child(5) { transition-delay: 270ms; }
.reveal-text.is-revealed span:nth-child(6) { transition-delay: 330ms; }
.reveal-text.is-revealed span:nth-child(7) { transition-delay: 390ms; }
.reveal-text.is-revealed span:nth-child(8) { transition-delay: 450ms; }
.reveal-text.is-revealed span:nth-child(9) { transition-delay: 510ms; }
.reveal-text.is-revealed span:nth-child(10) { transition-delay: 570ms; }
.reveal-text.is-revealed span:nth-child(11) { transition-delay: 630ms; }
.reveal-text.is-revealed span:nth-child(12) { transition-delay: 690ms; }

/* ---------------------------- Décoration ---------------------------- */

.grid-drift {
  animation: gridDrift 22s linear infinite;
}

.glow-pulse {
  animation: glowPulse 3.4s var(--ease-in-out) infinite;
}

.skeleton {
  background: linear-gradient(
    100deg,
    var(--surface-inset) 30%,
    color-mix(in srgb, var(--accent) 8%, var(--surface-inset)) 50%,
    var(--surface-inset) 70%
  );
  background-size: 200% 100%;
  animation: shimmer 1.6s linear infinite;
  border-radius: var(--r-sm);
}

/* ---------------------------- Impression ---------------------------- */

@media print {
  .bg-layer,
  .cursor-glow,
  .scroll-progress,
  .boot,
  .to-top,
  .palette,
  .site-header,
  .marquee {
    display: none !important;
  }

  .js [data-reveal],
  .js .stagger > *,
  .js .reveal-text span {
    opacity: 1 !important;
    transform: none !important;
  }

  .section {
    padding-block: 1.5rem;
    break-inside: avoid;
  }

  body {
    background: #fff;
    color: #000;
  }
}

/* ---------------------------- Réduction des animations ---------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal],
  .stagger > *,
  .reveal-text span {
    opacity: 1 !important;
    transform: none !important;
  }

  .js .hero__title .line > span {
    transform: none;
  }

  .marquee__track {
    animation: none;
  }

  .bg-layer__glow {
    animation: none;
  }
}