/**
 * [sf_course_slider] 用の Splide カスタム見た目。
 * - Splide 既定 CSS の上に被せる程度の最小差分
 * - モバイル/PC 共通
 */

.sf-course-slider {
  --sf-slide-h: 120px;
  --sf-slide-radius: 12px;
  margin: clamp(16px, 3vw, 32px) auto;
  padding: 0;
  max-width: 100%;
  overflow: hidden;
}

.sf-course-slider .splide__track {
  overflow: hidden;
}

.sf-course-slider .splide__list {
  align-items: stretch;
}

.sf-course-slider .sf-course-slide {
  width: auto;
  flex-shrink: 0;
}

.sf-course-slider .sf-course-slide__link {
  display: block;
  position: relative;
  height: var(--sf-slide-h);
  aspect-ratio: 16 / 9;
  border-radius: var(--sf-slide-radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 52, 80, 0.10), 0 4px 12px -4px rgba(0, 52, 80, 0.08);
  text-decoration: none;
  color: #fff;
  background: #0b4a6f;
  transition: transform .35s cubic-bezier(.4,0,.2,1),
              box-shadow .35s cubic-bezier(.4,0,.2,1);
}

.sf-course-slider .sf-course-slide__link:hover,
.sf-course-slider .sf-course-slide__link:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(0, 52, 80, 0.18);
  outline: none;
}

.sf-course-slider .sf-course-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

.sf-course-slider .sf-course-slide__title {
  position: absolute;
  inset: auto 0 0 0;
  padding: 22px 10px 8px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.35;
  color: #fff;
  background: linear-gradient(
    to top,
    rgba(0, 30, 48, 0.82) 0%,
    rgba(0, 30, 48, 0.55) 60%,
    rgba(0, 30, 48, 0) 100%
  );
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
  border-radius: 0 0 var(--sf-slide-radius) var(--sf-slide-radius);
}

/* フォーカスリングを Splide デフォルトより見やすく */
.sf-course-slider .sf-course-slide__link:focus-visible {
  box-shadow:
    0 0 0 3px rgba(28, 176, 248, 0.55),
    0 6px 24px rgba(0, 52, 80, 0.18);
}

/* Splide 既定の translateZ(0) によるぼやけ回避 */
.sf-course-slider .splide__slide img {
  image-rendering: auto;
}

@media (max-width: 768px) {
  .sf-course-slider {
    --sf-slide-h: 96px;
    --sf-slide-radius: 10px;
  }
  .sf-course-slider .sf-course-slide__title {
    font-size: 11px;
    padding: 18px 8px 6px;
  }
}

/* 表示出し分け (only="sp" / only="pc") */
@media (min-width: 769px) {
  div.sf-course-slider-only-sp {
    display: none;
  }
}
@media (max-width: 768px) {
  div.sf-course-slider-only-pc {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sf-course-slider .sf-course-slide__link {
    transition: none;
  }
}