/* ============================================
   RUDEK Côte d'Azur — Animations
   ============================================ */

/* --- Intersection Observer: Reveal on Scroll --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* Stagger delays for child elements */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-stagger--visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(7) { transition-delay: 0.6s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(8) { transition-delay: 0.7s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(9) { transition-delay: 0.8s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(10) { transition-delay: 0.9s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(11) { transition-delay: 1.0s; opacity: 1; transform: translateY(0); }
.reveal-stagger--visible > *:nth-child(12) { transition-delay: 1.1s; opacity: 1; transform: translateY(0); }

/* Reveal from left */
.reveal--left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* Reveal from right */
.reveal--right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* Reveal scale */
.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);
}

/* --- Hero Animations --- */
.hero__logo {
  opacity: 0;
  animation: heroFadeIn 1s ease-out 0.3s forwards;
}

.hero__title {
  opacity: 0;
  animation: heroSlideUp 1s ease-out 0.6s forwards;
}

.hero__subtitle {
  opacity: 0;
  animation: heroSlideUp 1s ease-out 0.9s forwards;
}

.hero .btn {
  opacity: 0;
  animation: heroSlideUp 1s ease-out 1.2s forwards;
}

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

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

/* --- Counter Animation --- */
.counter {
  display: inline-block;
}

/* --- Page Transition --- */
.page-enter {
  opacity: 0;
}

.page-enter--visible {
  opacity: 1;
  transition: opacity 0.4s ease-out;
}

/* --- Card Hover Effects --- */
.project-card {
  transition: box-shadow var(--transition-fast);
}

.project-card:hover {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

/* --- Gold Line Animations --- */
.gold-line {
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width 0.8s ease-out;
}

.gold-line--visible {
  width: 60px;
}

.gold-line--center {
  margin: 24px auto;
}

/* --- Loading Animation --- */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* --- Parallax --- */
.parallax-bg {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* --- Prefers Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal,
  .reveal--left,
  .reveal--right,
  .reveal--scale {
    opacity: 1;
    transform: none;
  }

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

  .hero__logo,
  .hero__title,
  .hero__subtitle,
  .hero .btn {
    opacity: 1;
    animation: none;
  }

  .suppliers-marquee__track {
    animation: none;
  }

  html {
    scroll-behavior: auto;
  }
}