/* ============================================================
   BIDIRECTIONAL SCROLL ANIMATIONS
   - Animationen erscheinen beim Runterscrollen
   - Animationen verschwinden beim Hochscrollen
   - Mobile & Desktop optimiert
   ============================================================ */

/* ===== BASE STATE - HIDDEN ===== */
[data-scroll] {
  opacity: 0;
  will-change: transform, opacity;
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===== VISIBLE STATE ===== */
[data-scroll].is-visible {
  opacity: 1;
  transform: translate(0, 0) scale(1) rotate(0deg) !important;
}

/* ===== FADE ANIMATIONS ===== */
[data-scroll="fade-up"] {
  transform: translateY(50px);
}

[data-scroll="fade-down"] {
  transform: translateY(-50px);
}

[data-scroll="fade-left"] {
  transform: translateX(60px);
}

[data-scroll="fade-right"] {
  transform: translateX(-60px);
}

[data-scroll="fade"] {
  transform: translateY(0);
}

/* ===== ZOOM ANIMATIONS ===== */
[data-scroll="zoom-in"] {
  transform: scale(0.85);
}

[data-scroll="zoom-out"] {
  transform: scale(1.1);
}

[data-scroll="zoom-rotate"] {
  transform: scale(0.9) rotate(-5deg);
}

/* ===== SLIDE ANIMATIONS (mit Spring-Effekt) ===== */
[data-scroll="slide-up"] {
  transform: translateY(80px);
  transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-scroll="slide-down"] {
  transform: translateY(-80px);
  transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-scroll="slide-left"] {
  transform: translateX(100px);
  transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-scroll="slide-right"] {
  transform: translateX(-100px);
  transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===== FLIP ANIMATIONS (3D Perspektive) ===== */
[data-scroll="flip-up"] {
  transform: perspective(800px) rotateX(12deg) translateY(30px);
  transform-origin: bottom center;
}

[data-scroll="flip-down"] {
  transform: perspective(800px) rotateX(-12deg) translateY(-30px);
  transform-origin: top center;
}

/* ===== STAGGER DELAYS ===== */
[data-scroll-stagger] > *:nth-child(1) { transition-delay: 0ms; }
[data-scroll-stagger] > *:nth-child(2) { transition-delay: 80ms; }
[data-scroll-stagger] > *:nth-child(3) { transition-delay: 160ms; }
[data-scroll-stagger] > *:nth-child(4) { transition-delay: 240ms; }
[data-scroll-stagger] > *:nth-child(5) { transition-delay: 320ms; }
[data-scroll-stagger] > *:nth-child(6) { transition-delay: 400ms; }
[data-scroll-stagger] > *:nth-child(7) { transition-delay: 480ms; }
[data-scroll-stagger] > *:nth-child(8) { transition-delay: 560ms; }

/* Fast stagger for grids */
[data-scroll-stagger="fast"] > * { transition-delay: 0ms !important; }
[data-scroll-stagger="fast"] > *:nth-child(1) { transition-delay: 0ms !important; }
[data-scroll-stagger="fast"] > *:nth-child(2) { transition-delay: 50ms !important; }
[data-scroll-stagger="fast"] > *:nth-child(3) { transition-delay: 100ms !important; }
[data-scroll-stagger="fast"] > *:nth-child(4) { transition-delay: 150ms !important; }
[data-scroll-stagger="fast"] > *:nth-child(5) { transition-delay: 200ms !important; }
[data-scroll-stagger="fast"] > *:nth-child(6) { transition-delay: 250ms !important; }

/* ===== MOBILE OPTIMIERUNGEN ===== */
@media (max-width: 768px) {
  [data-scroll] {
    transition-duration: 0.5s;
  }

  /* Kürzere Distanzen auf Mobile */
  [data-scroll="fade-up"],
  [data-scroll="slide-up"] {
    transform: translateY(30px);
  }

  [data-scroll="fade-down"],
  [data-scroll="slide-down"] {
    transform: translateY(-30px);
  }

  [data-scroll="fade-left"],
  [data-scroll="slide-left"] {
    transform: translateX(30px);
  }

  [data-scroll="fade-right"],
  [data-scroll="slide-right"] {
    transform: translateX(-30px);
  }

  [data-scroll="zoom-in"] {
    transform: scale(0.92);
  }

  [data-scroll="flip-up"],
  [data-scroll="flip-down"] {
    transform: translateY(25px);
  }

  /* Schnellere Stagger auf Mobile */
  [data-scroll-stagger] > *:nth-child(n) { transition-delay: 0ms !important; }
  [data-scroll-stagger] > *:nth-child(1) { transition-delay: 0ms !important; }
  [data-scroll-stagger] > *:nth-child(2) { transition-delay: 40ms !important; }
  [data-scroll-stagger] > *:nth-child(3) { transition-delay: 80ms !important; }
  [data-scroll-stagger] > *:nth-child(4) { transition-delay: 120ms !important; }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  [data-scroll] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}