/* ============================================
   KLIMATE KONTROL — Scroll Reveal Animations
   ============================================ */

/* --- Base Reveal States --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: transform 0.8s var(--ease-out), opacity 0.6s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: transform 0.8s var(--ease-out), opacity 0.6s ease;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: transform 0.8s var(--ease-out), opacity 0.6s ease;
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: transform 0.8s var(--ease-out), opacity 0.6s ease;
}

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

/* --- Stagger Delays --- */
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }
.delay-5 { transition-delay: 0.4s; }
.delay-6 { transition-delay: 0.48s; }

/* --- Hero entrance animation --- */
@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-animate {
  animation: heroFadeUp 0.9s var(--ease-out) forwards;
  opacity: 0;
}

.hero-animate-delay-1 { animation-delay: 0.15s; }
.hero-animate-delay-2 { animation-delay: 0.3s; }
.hero-animate-delay-3 { animation-delay: 0.45s; }
.hero-animate-delay-4 { animation-delay: 0.6s; }

/* --- Scroll Indicator Bounce --- */
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

.scroll-indicator {
  animation: scrollBounce 2s ease-in-out infinite;
}

/* --- Counter animation --- */
@keyframes countPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.counter-animate {
  animation: countPulse 0.4s var(--ease-spring);
}

/* --- Nav link underline slide --- */
@keyframes slideUnderline {
  from { transform: scaleX(0); transform-origin: left; }
  to { transform: scaleX(1); transform-origin: left; }
}

/* --- Subtle float for decorative elements --- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.float {
  animation: float 4s ease-in-out infinite;
}

/* --- Grain texture animation for dark sections --- */
@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-1%, -1%); }
  20% { transform: translate(1%, 0%); }
  30% { transform: translate(-1%, 1%); }
  40% { transform: translate(0%, -1%); }
  50% { transform: translate(-1%, 0%); }
  60% { transform: translate(1%, 1%); }
  70% { transform: translate(0%, -1%); }
  80% { transform: translate(-1%, 0%); }
  90% { transform: translate(1%, 1%); }
}

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

  .hero-animate {
    animation: none;
    opacity: 1;
  }

  .scroll-indicator,
  .float {
    animation: none;
  }
}