/* ==========================================================================
   REWIND Vorher/Nachher
   Ebenen: Bilder 0, Beschriftung 2, Regler 3, Griff 4 (nicht klickbar)
   ========================================================================== */
.rw-compare{
  --pos:    50%;
  --ratio:  3/2;
  --line-c: #fff;
  --line-w: 2px;
  --grip:   52px;

  position: relative;
  width: 100%;
  max-width: 100%;      /* kann nie breiter werden als der Container */
  min-width: 0;         /* darf in einem Flex-Elternteil schrumpfen */
  flex: 0 0 auto;       /* und wird von ihm nicht in der Hoehe gestaucht */
  overflow: hidden;
  isolation: isolate;
  line-height: 0;
  background: #14161c;
  user-select: none;
  -webkit-user-select: none;
}

/* ---------------------------------------------------------------------
   Standard: die Hoehe kommt vom Nachher-Bild selbst.
   Kein aspect-ratio, keine Rechnung - kann weder ueberlaufen noch
   abgeschnitten werden, und es wird nichts beschnitten.
   --------------------------------------------------------------------- */
.rw-compare__pane{ z-index: 0 }

.rw-compare__pane--after{
  position: relative;                 /* im Fluss: gibt die Hoehe vor */
}
.rw-compare__pane--after .rw-compare__img{
  width: 100%;
  height: auto;                       /* natuerliches Seitenverhaeltnis */
}

.rw-compare__pane--before{
  position: absolute;
  inset: 0;
  clip-path: inset(0 calc(100% - var(--pos)) 0 0);
}
.rw-compare__pane--before .rw-compare__img{
  width: 100%;
  height: 100%;
  object-fit: cover;                  /* passt sich dem Nachher-Bild an */
}

.rw-compare__img{
  display: block;
  pointer-events: none;
}

/* ---------------------------------------------------------------------
   Nur wenn im Widget ein festes Seitenverhaeltnis gewaehlt wurde.
   --------------------------------------------------------------------- */
.rw-compare.has-ratio{
  aspect-ratio: var(--ratio);
}
.rw-compare.has-ratio .rw-compare__pane{
  position: absolute;
  inset: 0;
}
.rw-compare.has-ratio .rw-compare__img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Beschriftung -------------------------------------------------------- */
.rw-compare__label{
  position: absolute;
  top: 14px;
  z-index: 2;
  pointer-events: none;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(0,0,0,.45);
  color: #fff;
  font: 600 .8rem/1 Arial, Helvetica, sans-serif;
  letter-spacing: .02em;
  -webkit-backdrop-filter: blur(6px) saturate(160%);
          backdrop-filter: blur(6px) saturate(160%);
}
.rw-compare__label--before{ left: 14px; }
.rw-compare__label--after { right: 14px; }

/* --- Der eigentliche Regler ---------------------------------------------
   Ein echtes <input type="range">, nur unsichtbar ueber die ganze Flaeche.
   Damit funktionieren Maus, Touch, Tastatur und Screenreader ohne Extracode.
   ------------------------------------------------------------------------ */
.rw-compare__range{
  position: absolute;
  inset: 0;
  z-index: 3;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  opacity: 0;
  cursor: ew-resize;
  -webkit-appearance: none;
          appearance: none;
  touch-action: pan-y;          /* senkrechtes Scrollen bleibt moeglich */
}
.rw-compare__range::-webkit-slider-thumb{
  -webkit-appearance: none;
  width: var(--grip);
  height: 100%;
}
.rw-compare__range::-moz-range-thumb{
  width: var(--grip);
  height: 100%;
  border: 0;
  border-radius: 0;
}
.rw-compare__range::-moz-range-track{ background: transparent; border: 0 }

/* --- Trennlinie und Griff ------------------------------------------------ */
.rw-compare__handle{
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos);
  z-index: 4;
  width: 0;
  pointer-events: none;
}
.rw-compare__handle::before{
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  left: calc(var(--line-w) / -2);
  width: var(--line-w);
  background: var(--line-c);
  box-shadow: 0 0 12px rgba(0,0,0,.45);
}

.rw-compare__grip{
  position: absolute;
  top: 50%;
  left: 0;
  transform: translate(-50%, -50%);
  width: var(--grip);
  height: var(--grip);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--line-c);
  background: rgba(255,255,255,.14);
  box-shadow:
    0 6px 20px rgba(0,0,0,.40),
    inset 0 0 16px rgba(255,255,255,.10);
  transition: transform .18s cubic-bezier(.2,.8,.3,1), background-color .2s ease;
}
.rw-compare__grip svg{
  width: 46%;
  height: 46%;
  display: block;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,.45));
}

/* Glas-Variante: Milchglas plus Kantenring, passend zum Rest der Seite */
.rw-compare.is-glass .rw-compare__grip{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  -webkit-backdrop-filter: blur(6px) saturate(185%);
          backdrop-filter: blur(6px) saturate(185%);
}
.rw-compare.is-glass .rw-compare__grip::before{
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1.3px;
  pointer-events: none;
  background: linear-gradient(140deg,
    rgba(255,255,255,.85)    0%,
    rgba(255,205,235,.42)   15%,
    rgba(255,255,255,.05)   39%,
    rgba(255,255,255,.02)   61%,
    rgba(180,235,255,.38)   84%,
    rgba(255,255,255,.68)  100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask-composite: exclude;
}
.rw-compare.is-glass .rw-compare__grip::after{
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  pointer-events: none;
  mix-blend-mode: screen;
  background: radial-gradient(80% 150% at 26% -22%, rgba(255,255,255,.30), transparent 62%);
}

/* Rueckmeldung beim Ziehen und bei Tastaturfokus */
.rw-compare__range:hover  ~ .rw-compare__handle .rw-compare__grip,
.rw-compare__range:active ~ .rw-compare__handle .rw-compare__grip{
  background-color: rgba(255,255,255,.22);
  transform: translate(-50%, -50%) scale(1.06);
}
.rw-compare__range:focus-visible ~ .rw-compare__handle .rw-compare__grip{
  outline: 2px solid var(--line-c);
  outline-offset: 4px;
}

/* --- Kleinere Schirme ---------------------------------------------------- */
@media (max-width: 600px){
  .rw-compare{ --grip: 42px; }
  .rw-compare__label{ top: 10px; padding: 5px 10px; font-size: .72rem }
  .rw-compare__label--before{ left: 10px }
  .rw-compare__label--after { right: 10px }
}

/* --- Systemeinstellungen ------------------------------------------------- */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){
  .rw-compare__label{ background: rgba(0,0,0,.62) }
  .rw-compare.is-glass .rw-compare__grip{ background: rgba(20,24,34,.72) }
}
@media (prefers-reduced-transparency: reduce){
  .rw-compare__label,
  .rw-compare.is-glass .rw-compare__grip{
    -webkit-backdrop-filter: none; backdrop-filter: none;
  }
  .rw-compare.is-glass .rw-compare__grip{ background: rgba(20,24,34,.88) }
  .rw-compare.is-glass .rw-compare__grip::after{ display: none }
}
@media (prefers-reduced-motion: reduce){
  .rw-compare__grip{ transition: none }
  .rw-compare__range:hover  ~ .rw-compare__handle .rw-compare__grip,
  .rw-compare__range:active ~ .rw-compare__handle .rw-compare__grip{
    transform: translate(-50%, -50%);
  }
}