/* ═══════════════════════════════════════════════════════
   STEINKERNEL SYSTEMS — Animations
   ═══════════════════════════════════════════════════════ */

/* ─── Scroll Reveal Base ─── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

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

/* Stagger delays */
.reveal[data-delay="1"] { transition-delay: 100ms; }
.reveal[data-delay="2"] { transition-delay: 200ms; }
.reveal[data-delay="3"] { transition-delay: 300ms; }
.reveal[data-delay="4"] { transition-delay: 400ms; }
.reveal[data-delay="5"] { transition-delay: 500ms; }
.reveal[data-delay="6"] { transition-delay: 600ms; }
.reveal[data-delay="7"] { transition-delay: 700ms; }
.reveal[data-delay="8"] { transition-delay: 800ms; }
.reveal[data-delay="9"] { transition-delay: 900ms; }
.reveal[data-delay="10"] { transition-delay: 1000ms; }

/* ─── Reveal Variants ─── */
.reveal--left {
  opacity: 0;
  transform: translateX(-40px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

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

.reveal--right {
  opacity: 0;
  transform: translateX(40px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

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

.reveal--scale {
  opacity: 0;
  transform: scale(0.92);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

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

/* ─── Hero Entry Animations ─── */
@keyframes heroLineReveal {
  0% { transform: translateY(105%); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

.hero.loaded .hero__eyebrow {
  animation: fadeSlideUp 0.6s var(--ease-out) 0.2s both;
}

.hero.loaded .hero__title .line-inner:nth-child(1),
.hero.loaded .hero__title .line:nth-child(1) .line-inner {
  animation: heroLineReveal 0.8s var(--ease-out) 0.4s both;
}

.hero.loaded .hero__title .line:nth-child(2) .line-inner {
  animation: heroLineReveal 0.8s var(--ease-out) 0.55s both;
}

.hero.loaded .hero__title .line:nth-child(3) .line-inner {
  animation: heroLineReveal 0.8s var(--ease-out) 0.7s both;
}

.hero.loaded .hero__subtitle {
  animation: fadeSlideUp 0.8s var(--ease-out) 0.9s both;
}

.hero.loaded .hero__actions {
  animation: fadeSlideUp 0.8s var(--ease-out) 1.1s both;
}

.hero.loaded .hero__scroll-indicator {
  animation: fadeSlideUp 0.8s var(--ease-out) 1.5s both;
}

/* ─── Common Keyframes ─── */
@keyframes fadeSlideUp {
  0% {
    opacity: 0;
    transform: translateY(24px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes slideInRight {
  0% {
    opacity: 0;
    transform: translateX(30px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ─── Accent Line Draw ─── */
@keyframes drawLine {
  0% { width: 0; }
  100% { width: 48px; }
}

.accent-line.animate {
  width: 0;
  animation: drawLine 0.6s var(--ease-out) forwards;
}

/* ─── Pulse (for live indicators) ─── */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.1); }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* ─── Data Flow (horizontal particle) ─── */
@keyframes dataFlow {
  0% {
    transform: translateX(-100%);
    opacity: 0;
  }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% {
    transform: translateX(200%);
    opacity: 0;
  }
}

/* ─── CSS Scroll-Driven Animations (Progressive Enhancement) ─── */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes scrollFadeUp {
      from {
        opacity: 0;
        transform: translateY(40px);
      }
    }

    @keyframes scrollFadeOut {
      to {
        opacity: 0;
        transform: translateY(-20px);
      }
    }

    .scroll-animate {
      animation:
        scrollFadeUp auto linear backwards,
        scrollFadeOut auto linear forwards;
      animation-timeline: view();
      animation-range: entry 10% entry 100%, exit 0% exit 50%;
    }
  }
}

/* ─── Hover Micro-Interactions ─── */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

/* ─── Shimmer Effect (for loading states / accents) ─── */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(198, 120, 50, 0.08) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 3s linear infinite;
}

/* ─── System Map Animations ─── */
@keyframes mapNodeIn {
  from {
    opacity: 0;
    transform: scale(0.94) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes mapSignalFlow {
  to {
    stroke-dashoffset: -40;
  }
}