/* ============================================================
   実績（achievements）— トップ + gallery/achievements/
   ============================================================ */

.section-achievements .achievement-grid {
  margin-bottom: 0.5rem;
}

.section-achievements {
  background: var(--color-black-soft);
  border-top: 3px solid var(--color-orange);
}

/* --- トップページ実績（背景画像 + 補足テキスト）--- */
.section-achievements--home {
  background: #fff;
  color: var(--color-black);
  border-top: none;
  padding-top: clamp(3.5rem, 8vw, 5.5rem);
  padding-bottom: clamp(3.5rem, 8vw, 5.5rem);
}

.section-achievements--home .section-header {
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-achievements--home .section-title {
  color: var(--color-black);
}

.section-achievements--home .section-label {
  color: var(--color-orange);
}

.home-achievements-bg {
  position: relative;
  width: 100%;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #111 url("../assets/images/top-achievements-bg.png") center center / cover no-repeat;
  overflow: hidden;
}

.home-achievements-bg__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.52);
  pointer-events: none;
}

.home-achievements-bg__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 5rem) clamp(1.25rem, 4vw, 2rem);
}

.home-achievements-copy {
  text-align: center;
}

.home-achievements-copy__heading {
  margin: 0 0 clamp(1.25rem, 3vw, 1.75rem);
  font-size: clamp(1.35rem, 3.5vw, 1.75rem);
  font-weight: 900;
  line-height: 1.55;
  color: #fff;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.45);
}

.home-achievements-copy__body {
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  line-height: 2;
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.4);
}

.home-achievements-copy__body p {
  margin: 0 0 1.25rem;
}

.home-achievements-copy__body p:last-child {
  margin-bottom: 0;
}

.section-achievements--home .section-more {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

@media (max-width: 767px) {
  .home-achievements-bg {
    min-height: 100svh;
    background-position: center center;
  }

  .home-achievements-copy__body br {
    display: none;
  }
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 107, 0, 0.2);
  margin-bottom: 2.5rem;
}

.stat-card {
  background: var(--color-black-card);
  padding: 2rem 1.25rem;
  text-align: center;
  transition: background var(--transition);
}

.stat-card:hover {
  background: #222;
}

.stat-card__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.stat-card__unit {
  font-size: 0.55em;
  color: var(--color-orange);
  margin-left: 0.1em;
}

.stat-card__label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-gray);
  letter-spacing: 0.05em;
}

/* 後方互換 */
.stat-num { display: block; font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3rem); font-weight: 700; color: var(--color-white); line-height: 1.1; margin-bottom: 0.5rem; }
.stat-unit { font-size: 0.55em; color: var(--color-orange); margin-left: 0.1em; }
.stat-label { display: block; font-size: 0.85rem; color: var(--color-gray); letter-spacing: 0.05em; }

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
}

.achievement-item {
  background: var(--color-black-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.achievement-item:hover {
  border-color: rgba(255, 107, 0, 0.4);
  box-shadow: var(--shadow);
}

.achievement-item__link {
  display: block;
  color: inherit;
}

.achievement-item__link:hover {
  color: inherit;
}

.achievement-item__media {
  aspect-ratio: 16 / 10;
}

.achievement-item__body {
  padding: 1.5rem;
}

.achievement-item__title {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 700;
}

.achievement-item__text {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--color-gray);
}

.achievement-item__spec {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1rem;
}

.achievement-item__spec-label {
  color: var(--color-orange);
  font-weight: 700;
  margin-right: 0.35rem;
}

.btn-card-detail {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  background: transparent;
  border: 2px solid var(--color-orange);
  color: var(--color-orange);
  font-weight: 700;
  font-size: 0.88rem;
  border-radius: 2px;
  transition: background var(--transition), color var(--transition);
}

.achievement-item:hover .btn-card-detail {
  background: var(--color-orange);
  color: var(--color-black);
}

@media (max-width: 900px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .achievement-item:hover {
    transform: none;
  }
}

html.perf-touch .achievement-item:hover {
  transform: none;
  box-shadow: none;
}

/* --- 車種別カルーセル（トップ実績欄・実績ページ共通）--- */
.achievements-vehicle-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-bottom: 2rem;
}

.achievements-vehicle-block__header {
  margin-bottom: 1rem;
}

.achievements-vehicle-block__title {
  margin: 0.35rem 0 0;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 900;
  color: var(--color-white);
}

.section-achievements .achievements-works-heading {
  margin: 2rem 0 0.5rem;
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 900;
  color: var(--color-white);
}

.section-achievements .achievements-works-desc {
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
  color: var(--color-gray);
  line-height: 1.7;
}

.achievements-carousel {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 107, 0, 0.2);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
  background: var(--color-black);
}

.achievements-carousel__viewport {
  overflow: hidden;
  width: 100%;
}

.achievements-carousel__track {
  display: flex;
  gap: 0.75rem;
  width: max-content;
  will-change: transform;
}

.achievements-carousel__slide {
  flex: 0 0 auto;
  width: min(85vw, 520px);
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 10px;
}

.achievements-carousel__slide-link {
  display: block;
  width: 100%;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.achievements-carousel__slide-link:hover img {
  opacity: 0.9;
}

.achievements-carousel__slide-link:focus-visible {
  outline: 2px solid var(--color-orange);
  outline-offset: 3px;
}

.achievements-carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.2s ease;
}

@media (max-width: 767px) {
  .achievements-carousel__slide {
    width: min(88vw, 360px);
  }

  .achievements-vehicle-list {
    gap: 2rem;
  }
}