/* ══════════════════════════════════════════════════════
   animations.css — Keyframes, Reveals, Loader
   Ресничное бюро
══════════════════════════════════════════════════════ */

/* ── Keyframes ──────────────────────────────────────── */

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

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

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

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

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes scrollHint {
  0%   { opacity: 0.55; transform: translateY(0); }
  50%  { opacity: 0.2;  transform: translateY(12px); }
  100% { opacity: 0.55; transform: translateY(0); }
}

/* Loader bar fill */
@keyframes loaderFill {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* Loader logo clip-path reveal */
@keyframes logoReveal {
  from { clip-path: inset(0 100% 0 0); }
  to   { clip-path: inset(0 0% 0 0); }
}

/* Loader fade out */
@keyframes loaderExit {
  from { opacity: 1; }
  to   { opacity: 0; }
}

/* Shimmer for skeleton / loading */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ── Loader ─────────────────────────────────────────── */
#loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background-color: var(--c-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease;
}

#loader.loader--exit {
  opacity: 0;
  pointer-events: none;
}

.loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.loader__logo-wrap {
  overflow: hidden;
}

.loader__logo {
  height: 60px;
  width: auto;
  max-width: 320px;
  animation: logoReveal 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.loader__bar {
  width: 180px;
  height: 1.5px;
  background-color: rgba(201, 169, 110, 0.2);
  border-radius: 2px;
  overflow: hidden;
}

.loader__bar-fill {
  height: 100%;
  background-color: var(--c-gold);
  transform-origin: left;
  animation: loaderFill 0.7s 0.6s ease-out forwards;
  transform: scaleX(0);
}

/* ── Scroll Reveals ─────────────────────────────────── */

/* Base hidden state — applied to all .reveal elements */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.72s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.72s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.72s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.72s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.72s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.72s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

/* Visible state — added by IntersectionObserver */
.reveal.visible,
.reveal-left.visible,
.reveal-right.visible {
  opacity: 1;
  transform: translate(0);
}

/* Staggered delays for child elements */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ── Mobile nav animation ───────────────────────────── */
@keyframes navLinkIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Header scroll line animation ───────────────────── */
.hero__scroll-line {
  animation: scrollHint 2.2s ease-in-out infinite;
}

/* ── Pulse for float CTA ────────────────────────────── */
@keyframes pulse {
  0%   { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45); }
  50%  { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.70); }
  100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45); }
}

.float-cta {
  animation: pulse 2.8s ease-in-out infinite;
}

/* ── prefers-reduced-motion ─────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-left,
  .reveal-right {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .hero__bg {
    animation: none !important;
  }

  .carousel__track {
    transition: none !important;
  }

  .loader__logo {
    animation: none !important;
    clip-path: none !important;
  }

  .loader__bar-fill {
    animation: none !important;
    transform: scaleX(1) !important;
  }

  .float-cta {
    animation: none !important;
  }

  .hero__scroll-line {
    animation: none !important;
  }

  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}