/* =========================================================
   Synapse · animations.css
   Scroll-reveal, hover-Effekte, dekorative Animationen.
   ========================================================= */

/* ---------- Reveal-on-Scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-fast { transition-duration: 0.5s; }
.reveal-slow { transition-duration: 1.1s; }

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* Stagger-Delays für Grids */
.reveal[data-delay="100"] { transition-delay: 0.1s; }
.reveal[data-delay="200"] { transition-delay: 0.2s; }
.reveal[data-delay="300"] { transition-delay: 0.3s; }
.reveal[data-delay="400"] { transition-delay: 0.4s; }
.reveal[data-delay="500"] { transition-delay: 0.5s; }
.reveal[data-delay="600"] { transition-delay: 0.6s; }

/* ---------- Hero "Synapse"-Linien (BG) ---------- */
.hero-network {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
}
.hero-network .node {
  position: absolute;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
  animation: nodePulse 3s ease-in-out infinite;
}
@keyframes nodePulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.4); }
}

/* ---------- Type-effect für Hero-Stichwort ---------- */
.typewriter {
  display: inline-block;
  border-right: 2px solid var(--accent);
  animation: blink-caret 0.8s step-end infinite;
}
@keyframes blink-caret {
  from, to { border-color: transparent; }
  50%      { border-color: var(--accent); }
}

/* ---------- Stroke-Drawing-Animation im Notebook-Mock ---------- */
.draw-path {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawStroke 3s ease-out forwards;
}
.draw-path.d1 { animation-delay: 0.4s; }
.draw-path.d2 { animation-delay: 1.2s; }
.draw-path.d3 { animation-delay: 2.0s; }
.draw-path.d4 { animation-delay: 2.8s; }
@keyframes drawStroke {
  to { stroke-dashoffset: 0; }
}

/* ---------- Counter-Glow für Stats ---------- */
@keyframes counterGlow {
  0%, 100% { text-shadow: 0 0 0 transparent; }
  50%      { text-shadow: 0 0 20px var(--accent-glow); }
}
.stat.visible .num { animation: counterGlow 3s ease-in-out infinite; }

/* ---------- Magnetic-Hover für Cards ---------- */
.magnetic {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Floating particles BG (für Sections) ---------- */
.particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}
.particles span {
  position: absolute;
  display: block;
  width: 4px; height: 4px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.15;
  animation: particle-float 20s linear infinite;
}
@keyframes particle-float {
  0%   { transform: translateY(100vh) scale(0.5); opacity: 0; }
  10%  { opacity: 0.2; }
  90%  { opacity: 0.2; }
  100% { transform: translateY(-10vh) scale(1.2); opacity: 0; }
}

/* ---------- Glow-Pulse für CTAs ---------- */
@keyframes ctaGlow {
  0%, 100% { box-shadow: 0 4px 16px var(--accent-glow); }
  50%      { box-shadow: 0 4px 32px var(--accent-glow), 0 0 48px var(--accent-glow); }
}
.btn-primary.pulse { animation: ctaGlow 2.5s ease-in-out infinite; }

/* ---------- Wave SVG-Divider (zwischen Sections) ---------- */
.wave-divider {
  display: block;
  width: 100%;
  height: 80px;
  fill: var(--bg-soft);
}

/* ---------- Loader Spinner ---------- */
.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- Reduced-Motion: alle Animationen deaktivieren ---------- */
@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;
  }
  .reveal, .reveal-left, .reveal-right, .reveal-scale {
    opacity: 1 !important;
    transform: none !important;
  }
}