:root {
  --angle: 12deg; /* 10–15deg по ТЗ, выбрано 12deg */
  --side-scale: 0.6; /* 60% размера */
  --side-opacity: 0.5; /* 50% прозрачности */
  --gap: 42%; /* сдвиг prev/next */
  --dur: 420ms;
  --easing: cubic-bezier(0.2, 0.7, 0.2, 1);
}
.slider-wrapper {
  position: relative;
  width: min(100%, 92vw);
  aspect-ratio: 16/9;
  margin: auto;
  perspective: 1200px;
  overflow: visible;
  user-select: none;
}
.slider {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
}
.slide {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font:
    700 clamp(24px, 6vw, 48px) / 1 system-ui,
    sans-serif;
  color: #fff;
  opacity: 0;
  pointer-events: none;

  transform-origin: center center;
  will-change: transform, opacity;
  transition: filter var(--dur) var(--easing);
}
.slide img {
  max-width: 100%;
  width: 100%;
  transform: scale(0.8);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  transition: none;
  height: auto;
  object-fit: cover;
}

/* ---------- states (статичные позиции) ---------- */
.slide.off-left {
  opacity: 0;
  transform: translateX(calc(-1.5 * var(--gap))) scale(0.5)
    rotateY(var(--angle));
  pointer-events: none;
}
.slide.off-right {
  opacity: 0;
  transform: translateX(calc(1.5 * var(--gap))) scale(0.5)
    rotateY(calc(-1 * var(--angle)));
  pointer-events: none;
}

.slide.prev {
  opacity: var(--side-opacity);
  transform: translateX(calc(-1 * var(--gap))) scale(var(--side-scale))
    rotateY(var(--angle));
  z-index: 1;
}
.slide.current {
  opacity: 1;
  transform: translateX(0%) rotateY(0deg) scale(1);
  z-index: 3;
}
.slide.next {
  opacity: var(--side-opacity);
  transform: translateX(var(--gap)) scale(var(--side-scale))
    rotateY(calc(-1 * var(--angle)));
  z-index: 2;
}

/* Переход к следующему (вправо): prev->off-left, current->prev, next->current, off-right->next */
.slider.to-next .prev {
  animation: prevToOffLeft var(--dur) var(--easing) both;
}
.slider.to-next .current {
  animation: curToPrev var(--dur) var(--easing) both;
}
.slider.to-next .next {
  animation: nextToCur var(--dur) var(--easing) both;
}
.slider.to-next .off-right {
  animation: offRightToNext var(--dur) var(--easing) both;
}

/* Переход к предыдущему (влево): next->off-right, current->next, prev->current, off-left->prev */
.slider.to-prev .next {
  animation: nextToOffRight var(--dur) var(--easing) both;
}
.slider.to-prev .current {
  animation: curToNext var(--dur) var(--easing) both;
}
.slider.to-prev .prev {
  animation: prevToCur var(--dur) var(--easing) both;
}
.slider.to-prev .off-left {
  animation: offLeftToPrev var(--dur) var(--easing) both;
}

/* --- keyframes (0%,50%,100%) --- */
@keyframes prevToOffLeft {
  0% {
    transform: translateX(calc(-1 * var(--gap))) scale(var(--side-scale))
      rotateY(var(--angle));
    opacity: var(--side-opacity);
  }
  50% {
    transform: translateX(calc(-1.25 * var(--gap))) scale(0.55)
      rotateY(var(--angle));
  }
  100% {
    transform: translateX(calc(-1.5 * var(--gap))) scale(0.5)
      rotateY(var(--angle));
    opacity: 0;
  }
}
@keyframes curToPrev {
  0% {
    transform: translateX(0%) scale(1) rotateY(0deg);
    opacity: 1;
  }
  50% {
    transform: translateX(calc(-0.5 * var(--gap))) scale(0.8)
      rotateY(calc(0.5 * var(--angle)));
  }
  100% {
    transform: translateX(calc(-1 * var(--gap))) scale(var(--side-scale))
      rotateY(var(--angle));
    opacity: var(--side-opacity);
  }
}
@keyframes nextToCur {
  0% {
    transform: translateX(var(--gap)) scale(var(--side-scale))
      rotateY(calc(-1 * var(--angle)));
    opacity: var(--side-opacity);
  }
  50% {
    transform: translateX(calc(0.5 * var(--gap))) scale(0.8)
      rotateY(calc(-0.5 * var(--angle)));
  }
  100% {
    transform: translateX(0%) scale(1) rotateY(0deg);
    opacity: 1;
  }
}
@keyframes offRightToNext {
  0% {
    transform: translateX(calc(1.5 * var(--gap))) scale(0.5)
      rotateY(calc(-1 * var(--angle)));
    opacity: 0;
  }
  50% {
    transform: translateX(calc(1.25 * var(--gap))) scale(0.55)
      rotateY(calc(-1 * var(--angle)));
  }
  100% {
    transform: translateX(var(--gap)) scale(var(--side-scale))
      rotateY(calc(-1 * var(--angle)));
    opacity: var(--side-opacity);
  }
}

/* зеркальные для to-prev */
@keyframes nextToOffRight {
  0% {
    transform: translateX(var(--gap)) scale(var(--side-scale))
      rotateY(calc(-1 * var(--angle)));
    opacity: var(--side-opacity);
  }
  50% {
    transform: translateX(calc(1.25 * var(--gap))) scale(0.55)
      rotateY(calc(-1 * var(--angle)));
  }
  100% {
    transform: translateX(calc(1.5 * var(--gap))) scale(0.5)
      rotateY(calc(-1 * var(--angle)));
    opacity: 0;
  }
}
@keyframes curToNext {
  0% {
    transform: translateX(0%) scale(1) rotateY(0deg);
    opacity: 1;
  }
  50% {
    transform: translateX(calc(0.5 * var(--gap))) scale(0.8)
      rotateY(calc(-0.5 * var(--angle)));
  }
  100% {
    transform: translateX(var(--gap)) scale(var(--side-scale))
      rotateY(calc(-1 * var(--angle)));
    opacity: var(--side-opacity);
  }
}
@keyframes prevToCur {
  0% {
    transform: translateX(calc(-1 * var(--gap))) scale(var(--side-scale))
      rotateY(var(--angle));
    opacity: var(--side-opacity);
  }
  50% {
    transform: translateX(calc(-0.5 * var(--gap))) scale(0.8)
      rotateY(calc(0.5 * var(--angle)));
  }
  100% {
    transform: translateX(0%) scale(1) rotateY(0deg);
    opacity: 1;
  }
}
@keyframes offLeftToPrev {
  0% {
    transform: translateX(calc(-1.5 * var(--gap))) scale(0.5)
      rotateY(var(--angle));
    opacity: 0;
  }
  50% {
    transform: translateX(calc(-1.25 * var(--gap))) scale(0.55)
      rotateY(var(--angle));
  }
  100% {
    transform: translateX(calc(-1 * var(--gap))) scale(var(--side-scale))
      rotateY(var(--angle));
    opacity: var(--side-opacity);
  }
}

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid #ccc;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #007fff;
}
.slider-arrow:hover {
  color: #e11229;
}
.slider-arrow.prev {
  left: 0;
  transform: translateX(-100%);
}
.slider-arrow.next {
  right: 0;
  transform: translateX(100%);
}
@media (prefers-reduced-motion: reduce) {
  .slide * {
    animation: none !important;
    transition: none !important;
  }
}
html,
body {
  overflow-x: hidden;
}
@media (max-width: 1023px) {
  .slider-arrow.prev {
    left: 10%;
  }
  .slider-arrow.next {
    right: 10%;
  }
}