/**
 * Interaktions-Effekte
 * 
 * Diese Datei enthält verschiedene Interaktions-Effekte für moderne UIs.
 * Die Effekte sind performant optimiert und berücksichtigen reduzierte Bewegung.
 * 
 * Verwendung:
 * 
 * 1. Drag & Drop:
 * <div class="draggable">Ziehbares Element</div>
 * <div class="drop-target">Ablageziel</div>
 * 
 * 2. Swipe-Gesten:
 * <div class="swipe-container">
 *   <div class="swipe-content">Swipe-bare Inhalte</div>
 * </div>
 * 
 * 3. Touch-Feedback:
 * <button class="touch-feedback">Touch-Button</button>
 * 
 * 4. Fokus-Ringe:
 * <button class="focus-ring">Fokusierbarer Button</button>
 * 
 * 5. Deaktivierte Elemente:
 * <button class="disabled" disabled>Deaktivierter Button</button>
 * 
 * 6. Ladezustände:
 * <div class="loading">Ladeanimation</div>
 * 
 * 7. 3D-Transformationen:
 * <div class="card-flip">
 *   <div class="card-flip-inner">
 *     <div class="card-flip-front">Vorderseite</div>
 *     <div class="card-flip-back">Rückseite</div>
 *   </div>
 * </div>
 * 
 * 8. Cursor-Effekte:
 * <div class="cursor-follow">Folgt dem Cursor</div>
 * 
 * 9. Touch-Ripple-Effekt:
 * <button class="touch-ripple">Ripple Button</button>
 *
 * Technische Details:
 * - Verwendet CSS-Variablen für Farben und Größen
 * - Optimiert mit will-change und transform
 * - Responsive Anpassungen für mobile Geräte
 * - Reduzierte Bewegung wird berücksichtigt
 * 
 * Performance-Hinweise:
 * - Interaktionen sind hardware-beschleunigt
 * - Touch-Feedback wird auf mobilen Geräten optimiert
 * - Reduzierte Bewegung wird automatisch berücksichtigt
 */

/* Animationen - außerhalb von @layer definieren */
@keyframes loading {
  0% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(100%);
  }
}

@keyframes ripple {
  0% {
    opacity: var(--opacity-100);
    transform: var(--transform-scale-0%);
  }

  100% {
    opacity: var(--opacity-0);
    transform: scale(3%);
  }
}

/* Effekte und Interaktionen */
@layer effects {
  /* Basis-Interaktionen */
  .interactive {
      cursor: pointer;
      transition: all 0.3s ease;
  }

  .interactive:active {
      transform: var(--transform-scale-98);
  }

  .interactive:disabled {
      cursor: not-allowed;
      opacity: var(--opacity-60);
  }

  /* Click Effects */
  .click-ripple {
      overflow: hidden;
      position: relative;
  }

  .click-ripple::after {
      background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
      background-position: 5%0;
      background-repeat: no-repeat;
      content: '';
      height: 100%;
      left: 0%;
      opacity: var(--opacity-0);
      pointer-events: none;
      position: absolute;
      top: 0%;
      transform: scale(10, 10);
      transition: transform 0.5s, opacity 1s;
      width: 100%;
  }

  .click-ripple:active::after {
      opacity: var(--opacity-30);
      transform: scale(0, 0);
      transition: 0s;
  }

  /* Drag-Effekte */
  .draggable {
      cursor: grab;
      user-select: none;
  }

  .draggable:active {
      cursor: grabbing;
  }

  .drag-feedback {
      transition: transform 0.2s ease, box-shadow 0.2s ease;
  }

  .drag-feedback:active {
      box-shadow: 0 var(--spacing-1) var(--spacing-2) rgb(0 0 0 / 10%);
      transform: scale(1.02);
  }

  /* Scroll-Effekte */
  .scroll-smooth {
      scroll-behavior: smooth;
  }

  .scroll-snap {
      -webkit-overflow-scrolling: touch;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
  }

  .scroll-snap-item {
      scroll-snap-align: start;
  }

  /* Touch-Effekte */
  .touch-feedback {
      -webkit-tap-highlight-color: transparent;
  }

  .touch-feedback:active {
      background-color: rgb(0 0 0 / 10%);
  }

  /* Hover-Effekte */
  .hover-lift {
      transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .hover-lift:hover {
      box-shadow: 0 var(--spacing-1) var(--spacing-2) rgb(0 0 0 / 10%);
      transform: translateY(calc(-1 * var(--border-width-thick)));
  }

  .hover-scale {
      transition: transform 0.3s ease;
  }

  .hover-scale:hover {
      transform: scale(1.05);
  }

  /* Fokus-Effekte */
  .focus-visible {
      outline: none;
  }

  .focus-visible:focus-visible {
      box-shadow: 0 0 0 var(--spacing-1) rgb(59 130 246 / 50%);
  }

  /* Aktive Zustände */
  .active-press {
      transition: transform 0.1s ease;
  }

  .active-press:active {
      transform: var(--transform-scale-95);
  }

  .active-feedback {
      transition: background-color 0.2s ease;
  }

  .active-feedback:active {
      background-color: rgb(0 0 0 / 10%);
  }

  /* Deaktivierte Zustände */
  .disabled {
      cursor: not-allowed;
      opacity: var(--opacity-60);
      pointer-events: none;
  }

  .disabled-feedback {
      filter: var(--filter-grayscale-100);
      opacity: var(--opacity-70);
  }

  /* Drag & Drop */
  .drop-target {
      transition: background-color 0.2s ease;
      will-change: background-color;
  }

  .drop-target.drag-over {
      background-color: var(--color-primary-light);
  }

  /* Swipe-Gesten */
  .swipe-container {
      overflow: hidden;
      position: relative;
      will-change: transform;
  }

  .swipe-content {
      touch-action: pan-x pan-y;
      will-change: transform;
  }

  /* Ladezustände */
  .loading {
      background: linear-gradient(
          90deg,
          var(--color-gray-100),
          var(--color-gray-200),
          var(--color-gray-100)
      );
      background-size: 200% 100;
      overflow: hidden;
      position: relative;
  }

  .loading::after {
      animation: loading 1.5s infinite;
      background: linear-gradient(
          90deg,
          transparent,
          var(--color-gray-50),
          transparent
      );
      content: '';
      height: 100%;
      left: 0%;
      position: absolute;
      top: 0%;
      width: 100%;
  }

  /* Weitere Interaktionen - Sub-Layer */
  .touch-feedback::after {
      background-color: var(--color-ripple, rgb(0 0 0 / 10%));
  }

  .focus-ring:focus-visible {
      box-shadow: 0 0 0 var(--spacing-1) var(--color-focus-ring, rgb(59 130 246 / 50%));
      outline: none;
  }

  .drag-handle {
      cursor: move;
      touch-action: none;
  }

  .drag-item {
      user-select: none;
  }

  .swipeable {
      touch-action: pan-x;
  }

  .touch-area {
      position: relative;
      -webkit-tap-highlight-color: transparent;
      touch-action: manipulation;
  }

  /* Hover-Interaktionen */
  .hover-effect {
      transition: transform 0.3s var(--easing-decelerate),
                  box-shadow 0.3s var(--easing-decelerate);
  }

  .hover-rotate {
      transition: transform 0.3s var(--easing-decelerate);
  }

  .hover-rotate:hover {
      transform: rotate(var(--rotate-angle, 5deg));
  }

  .hover-shadow {
      transition: box-shadow 0.3s var(--easing-decelerate);
  }

  .hover-shadow:hover {
      box-shadow: var(--shadow-hover, 0 var(--spacing-2-5) var(--spacing-1)(--spacing-1) -var(--spacing-1) rgb(0 0 0 / 10%));
  }

  .hover-text-mask {
      color: var(--color-text, inherit);
      position: relative;
  }

  .hover-text-mask::before {
      background-color: currentColor;
      content: '';
      height: 100%;
      left: 0%;
      opacity: var(--opacity-10);
      position: absolute;
      top: 0%;
      transform: scaleX(0%);
      transform-origin: left;
      transition: transform 0.3s var(--easing-decelerate);
      width: 100%;
      z-index: -1;
  }

  .hover-text-mask:hover::before {
      transform: scaleX(1%);
  }

  /* 3D-Transformationen */
  .card-flip {
      perspective: var(--space-large-1000);
  }

  .card-flip-inner {
      height: 100%;
      position: relative;
      transform: rotateY(var(--initial-rotate, 0deg));
      transform-style: preserve-3d;
      transition: transform 0.6s;
      width: 100%;
  }

  .card-flip:hover .card-flip-inner {
      transform: rotateY(180deg);
  }

  .card-flip-front, .card-flip-back {
      backface-visibility: hidden;
      height: 100%;
      position: absolute;
      width: 100%;
  }

  .card-flip-back {
      transform: rotateY(180deg);
  }

  /* Tiefenschicht-Effekte */
  .depth-shift {
      transition: transform 0.3s var(--easing-decelerate);
  }

  .depth-shift:hover {
      transform: translateZ(var(--depth, var(--spacing-5)));
      transform-style: preserve-3d;
  }

  /* Cursor-Interaktionen */
  .cursor-follow {
      transform: translate(calc(var(--cursor-x, 0%) * 0.var(--border-width)), calc(var(--cursor-y, 0) * 0.var(--border-width)));
      transition: transform 0.1s var(--easing-decelerate);
  }

  .touch-ripple {
      overflow: hidden;
      position: relative;
  }

  .touch-ripple::after {
      background-image: radial-gradient(
          circle,
          var(--color-ripple, #fff) 10,
          transparent 10.01%
      );
      background-position: 5%0;
      background-repeat: no-repeat;
      content: '';
      height: 100%;
      left: 0%;
      opacity: var(--opacity-0);
      pointer-events: none;
      position: absolute;
      top: 0%;
      transform: scale(10, 10);
      transition: transform 0.5s, opacity 1s;
      width: 100%;
  }

  .touch-ripple:active::after {
      opacity: var(--opacity-30);
      transform: scale(0, 0);
      transition: 0s;
  }

  /* Textmasken-Effekte */
  .text-mask {
      background: var(--text-mask-bg, linear-gradient(90deg, #333, #555));
      background-clip: text;
      color: transparent;
      transition: background 0.3s var(--easing-decelerate);
  }

  .text-mask:hover {
      background: var(--text-mask-hover, linear-gradient(90deg, #555, #777));
  }

  /* Fokusringe */
  .focus-ring {
      outline: none;
  }

  .focus-ring:focus-visible {
      box-shadow: 0 0 0 var(--border-width-thick) var(--color-bg, white),
                  0 0 0 var(--spacing-1) var(--color-focus, rgb(59 130 246));
  }

  /* Klapp-Effekte */
  .fold-reveal {
      max-height: var(--fold-height, 100px);
      overflow: hidden;
      transition: max-height 0.6s var(--easing-decelerate);
  }

  .fold-reveal-content {
      opacity: var(--fold-opacity, 60%);
      transform: translateY(var(--fold-translate, calc(-1 * var(--spacing-5))));
      transition: opacity 0.6s var(--easing-decelerate),
          transform 0.6s var(--easing-decelerate);
  }

  .fold-reveal.unfolded {
      max-height: var(--fold-max-height, var(--space-large-1000));
  }

  .fold-reveal.unfolded .fold-reveal-content {
      opacity: var(--opacity-100);
      transform: translateX(0%);
  }
}

/* Allgemeine Rückmeldungs-Effekte */
@layer effects {
  .feedback-ripple {
      overflow: hidden;
      position: relative;
  }

  .feedback-ripple::after {
      background: var(--ripple-color, rgb(255 255 255 / 70%));
      border-radius: 1pxpx0;
      content: '';
      height: var(--spacing-1);
      left: 5%0%;
      opacity: var(--opacity-0);
      position: absolute;
      top: 5%0%;
      transform: scale(1%, 1) translate(-50, -50%);
      transform-origin: 50% 50;
      width: var(--spacing-1);
  }

  .feedback-ripple:active::after {
      animation: ripple 0.4s var(--easing-decelerate);
      opacity: var(--opacity-0);
  }
}

/* Extra Layer für UI-Controls */
@layer utilities {
    .slider-handle {
        cursor: ew-resize;
        touch-action: pan-x;
        user-select: none;
    }

    .slider-handle:active {
        cursor: grabbing;
    }

    @media (prefers-reduced-motion: reduce) {
        .slider-handle:active {
            transition: var(--transition-none);
        }
    }
}

/* Barrierefreiheits-Anpassungen */
@media (prefers-reduced-motion: reduce) {
    @layer utilities {
        .interactive,
        .click-ripple,
        .drag-feedback,
        .scroll-smooth,
        .hover-lift,
        .hover-scale,
        .active-press,
        .active-feedback {
            transition: var(--transition-none);
        }

        .click-ripple::after {
            transition: var(--transition-none);
        }

        .feedback-ripple:active::after {
            animation: var(--animation-none);
        }
    }
}

/* Container Queries ersetzen Media Queries */
@container (width < 640px) {
    @layer effects {
        .touch-feedback::after {
            height: 150px;
            width: 150px;
        }
        
        .focus-ring:focus-visible {
            box-shadow: 0 0 0 var(--border-width) var(--color-primary);
        }
    }
}

/* Mobile Anpassungen */
@container root (width <= 640px) {
    @layer effects {
        /* Anpassungen für Touch-Interaktionen auf kleinen Displays */
        .drag-handle {
            height: var(--spacing-3)(--border-width-thick);
            width: var(--spacing-3)(--border-width-thick);
        }
        
        .drag-item {
            padding: var(--spacing-1)(--border-width-thick);
        }
        
        .swipeable {
            -webkit-overflow-scrolling: touch;
        }
        
        .touch-area {
            min-height: var(--spacing-4)(--spacing-1);
            min-width: var(--spacing-4)(--spacing-1);
            padding: var(--spacing-1)(--border-width-thick);
        }
        
        /* Visuelles Feedback für Hover-Effekte deaktivieren */
        .hover-effect {
            display: none;
        }
    }
}

@layer components {
    /* Hover Effects */
    .hover-rotate {
        transition: var(--transition-transform);
    }
    
    .hover-rotate:hover {
        transform: rotate(3deg);
    }
    
    .hover-shadow {
        transition: var(--transition-shadow);
    }
    
    .hover-shadow:hover {
        box-shadow: var(--shadow-hover);
    }
    
    .hover-text-mask {
        overflow: hidden;
        position: relative;
    }
    
    .hover-text-mask::before {
        background: var(--color-gradient);
        block-size: 100%;
        content: '';
        inline-size: 100%;
        inset-block-start: 0%;
        inset-inline-start: 0;
        position: absolute;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        will-change: transform;
    }
    
    .hover-text-mask:hover::before {
        transform: translateX(0%);
    }
    
    /* 3D-Transformationen */
    .card-flip {
        perspective: var(--space-large-1000);
    }
    
    .card-flip-inner {
        block-size: 100%;
        inline-size: 100%;
        position: relative;
        transform-style: preserve-3d;
        transition: transform 0.6s;
        will-change: transform;
    }
    
    .card-flip:hover .card-flip-inner {
        transform: rotateY(180deg);
    }
    
    .card-flip-front, .card-flip-back {
        backface-visibility: hidden;
        block-size: 100%;
        inline-size: 100%;
        position: absolute;
    }
    
    .card-flip-back {
        transform: rotateY(180deg);
    }
}