/* anyVersum — Theme-Umschalter (geteilte Komponente)
   Wird von der Startseite und den Rechtsseiten genutzt. Der Dunkelmodus greift,
   sobald ein Vorfahre die Klasse .av-dark trägt (Startseite: .scene, sonst: html). */

.toggle {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 5;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

.toggle__track {
  position: relative;
  display: block;
  width: 66px;
  height: 32px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(120, 150, 185, 0.5);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: background 300ms var(--ease-out);
  animation: av-breathe 4.8s ease-in-out infinite;
}
.av-dark .toggle__track {
  border-color: var(--border-strong);
  background: rgba(26, 33, 64, 0.7);
  animation: av-breathe-dark 4.8s ease-in-out infinite;
}

.toggle__hint {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  transition: opacity 260ms var(--ease-out);
}
.toggle__hint--sun {
  left: 9px;
  color: var(--gold-500);
  opacity: 0;
}
.toggle__hint--moon {
  right: 9px;
  color: var(--ink-400);
  opacity: 0.55;
}
.av-dark .toggle__hint--sun { opacity: 0.55; }
.av-dark .toggle__hint--moon { opacity: 0; }

.toggle__knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(16, 20, 43, 0.35);
  transform: translateX(0);
  transition: transform 260ms var(--ease-out);
}
.av-dark .toggle__knob {
  background: var(--paper-50);
  transform: translateX(34px);
}

.toggle__knob-icon { color: var(--ink-900); }
.toggle__knob-icon--sun { display: flex; }
.toggle__knob-icon--moon { display: none; }
.av-dark .toggle__knob-icon--sun { display: none; }
.av-dark .toggle__knob-icon--moon { display: flex; }

.toggle:focus-visible .toggle__track {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

@keyframes av-breathe {
  0%, 100% { box-shadow: var(--shadow-card), 0 0 0 0 rgba(125, 106, 230, 0); }
  50%      { box-shadow: var(--shadow-card), 0 0 0 7px rgba(125, 106, 230, 0.14); }
}
@keyframes av-breathe-dark {
  0%, 100% { box-shadow: 0 0 0 0 rgba(157, 142, 245, 0), 0 0 0 0 rgba(157, 142, 245, 0); }
  50%      { box-shadow: 0 0 22px 2px rgba(157, 142, 245, 0.55), 0 0 0 8px rgba(157, 142, 245, 0.22); }
}

@media (prefers-reduced-motion: reduce) {
  .toggle__track { animation: none; }
}