/* ============================================
   ATLAS COM — Animations CSS
   ============================================ */

/* --- Reveal au scroll --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Délais stagger pour les enfants */
.stagger-child { opacity: 0; transform: translateY(32px); }
.stagger-child.visible { opacity: 1; transform: translateY(0); }
.stagger-child:nth-child(1) { transition-delay: 0ms; }
.stagger-child:nth-child(2) { transition-delay: 80ms; }
.stagger-child:nth-child(3) { transition-delay: 160ms; }
.stagger-child:nth-child(4) { transition-delay: 240ms; }
.stagger-child:nth-child(5) { transition-delay: 320ms; }
.stagger-child:nth-child(6) { transition-delay: 400ms; }
.stagger-child { transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }

/* Fade in depuis la gauche */
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Fade in depuis la droite */
.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale in */
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* --- Glow pulse sur les éléments accent --- */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 229, 255, 0.2); }
  50% { box-shadow: 0 0 40px rgba(0, 229, 255, 0.5); }
}

.glow-pulse {
  animation: glowPulse 3s ease-in-out infinite;
}

/* --- Float animation --- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.float {
  animation: float 5s ease-in-out infinite;
}

/* --- Shimmer gradient --- */
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.shimmer {
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(0, 229, 255, 0.1) 50%,
    transparent 100%
  );
  background-size: 200% auto;
  animation: shimmer 3s linear infinite;
}

/* --- Bordure animée --- */
@keyframes borderGlow {
  0%, 100% { border-color: rgba(0, 229, 255, 0.12); }
  50% { border-color: rgba(0, 229, 255, 0.35); }
}

/* --- Rotation lente pour les icônes décoratives --- */
@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* --- Apparition hero (séquentielle) --- */
.hero-animate-1 {
  animation: heroFadeUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.1s both;
}

.hero-animate-2 {
  animation: heroFadeUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.25s both;
}

.hero-animate-3 {
  animation: heroFadeUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s both;
}

.hero-animate-4 {
  animation: heroFadeUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.55s both;
}

.hero-animate-5 {
  animation: heroFadeUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.7s both;
}

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

/* --- Timeline reveal --- */
.timeline-step {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-step.visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-step:nth-child(1) { transition-delay: 0ms; }
.timeline-step:nth-child(2) { transition-delay: 150ms; }
.timeline-step:nth-child(3) { transition-delay: 300ms; }
.timeline-step:nth-child(4) { transition-delay: 450ms; }

/* --- Gradient border animation --- */
@keyframes gradientRotate {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* --- Typing cursor --- */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.cursor-blink::after {
  content: '|';
  color: var(--accent-primary);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}

/* --- Page load overlay --- */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  animation: loaderPulse 1.2s ease-in-out infinite;
}

@keyframes loaderPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* --- Smooth scroll progress bar --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--accent-gradient);
  z-index: 9997;
  transform-origin: left;
  transition: transform 0.1s;
}