/* ============================================
   KVATASK SITE — MOTION
   @keyframes, scroll-driven анимации, reduced-motion overrides
   ============================================ */

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

@keyframes pulse-soft {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes card-drop {
  0% { opacity: 0; transform: scale(0.95) translateY(-10px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes fade-in-up {
  0% { opacity: 0; transform: translateY(24px); }
  100% { opacity: 1; transform: translateY(0); }
}

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

@keyframes aurora-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== Scroll reveal ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 0.08s; }
.animate-on-scroll.delay-2 { transition-delay: 0.16s; }
.animate-on-scroll.delay-3 { transition-delay: 0.24s; }
.animate-on-scroll.delay-4 { transition-delay: 0.32s; }
.animate-on-scroll.delay-5 { transition-delay: 0.40s; }
.animate-on-scroll.delay-6 { transition-delay: 0.48s; }
.animate-on-scroll.delay-7 { transition-delay: 0.56s; }

/* ===== Scroll-driven progress bar в navbar (по желанию подключается на странице) ===== */
@supports (animation-timeline: scroll()) {
  .nav-progress {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    background: var(--gradient-mcp);
    transform-origin: left;
    transform: scaleX(0);
    animation: nav-progress-grow linear;
    animation-timeline: scroll();
  }

  @keyframes nav-progress-grow {
    to { transform: scaleX(1); }
  }
}

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

  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}