/* ===== Slider ===== */
.slider {
  position: relative;
  width: min(500px, 90%);
  margin: 0 auto;
  user-select: none;
}

.slider-viewport {
  overflow: hidden;
  border-radius: 14px;
  background: #f3f3f3;
}

.slider-track {
  display: flex;
  transition: transform 0.35s ease;
  will-change: transform;
}

.slide {
  min-width: 100%;
  margin: 0;
}

.slide img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1/ 1;   /* 好みで変更OK（例：1/1） */
  object-fit: cover;
}
/* Buttons */
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 999px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 28px;
  line-height: 44px;
  cursor: pointer;
  z-index: 2;
}

.slider-btn:hover { background: rgba(0,0,0,0.70); }
.slider-btn:active { transform: translateY(-50%) scale(0.98); }

.slider-btn.prev { left: 10px; }
.slider-btn.next { right: 10px; }

/* Dots */
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: none;
  background: #cfcfcf;
  cursor: pointer;
}

.slider-dot.is-active {
  background: #333;
}

/* Small screens */
@media (max-width: 480px) {
  .slider-btn {
    width: 38px;
    height: 38px;
    font-size: 24px;
    line-height: 38px;
  }
}