/* ============================================
   SAMSAKTI — Animations
   Scroll reveal + Hover effects
   ============================================ */

/* ========== LOADER ========== */

.loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--color-bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader--hidden {
  opacity: 0;
  visibility: hidden;
}

.loader__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.loader__logo {
  width: 80px;
  height: 80px;
  animation: loaderPulse 1.4s ease-in-out infinite;
}

.loader__text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0;
  animation: loaderTextIn 0.8s ease-out 0.3s forwards;
}

@keyframes loaderPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.1);
    opacity: 1;
  }
}

@keyframes loaderTextIn {
  to {
    opacity: 1;
  }
}

/* --- Scroll Reveal : état initial (invisible) --- */
/* ========== HERO FADE UP (utilisé sur toutes les pages) ========== */

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

/* ========== HERO DIVIDER (ligne courbée entre titre et sous-titre) ========== */

.hero-divider-wrapper {
  display: block;
  width: 100%;
  max-width: 800px;
  margin: 1rem auto 1.25rem;
  opacity: 0;
  transform: scaleX(0.3);
  animation: heroDividerScale 1s ease-out 0.3s forwards;
}

.hero-divider {
  display: block;
  width: 100%;
  height: auto;
}

@keyframes heroDividerScale {
  to {
    opacity: 0.85;
    transform: scaleX(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-divider-wrapper {
    animation: none;
    opacity: 0.85;
    transform: scaleX(1);
  }
}

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

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

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

/* --- Stagger : délai progressif pour les enfants --- */
.reveal-stagger > .reveal:nth-child(1) { transition-delay: 0s; }
.reveal-stagger > .reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger > .reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger > .reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal-stagger > .reveal:nth-child(5) { transition-delay: 0.4s; }

/* --- Variantes de reveal --- */
.reveal--left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

.reveal--right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

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

.reveal--scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

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

/* --- Accessibilité : désactiver les animations --- */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal--left,
  .reveal--right,
  .reveal--scale {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .reveal-stagger > .reveal {
    transition-delay: 0s;
  }

  .loader {
    display: none;
  }

  .loader__logo {
    animation: none;
  }

  .loader__text {
    animation: none;
    opacity: 1;
  }
}