/* =============================================
   TOPページ専用スタイル
   ============================================= */

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 64px;
  background: var(--color-gray-100);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  height: 100%;
  gap: 8px;
  padding: 8px;
  padding-top: 72px;
}

.hero__bg-img {
  overflow: hidden;
}

.hero__bg-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 10s ease;
}

.hero:hover .hero__bg-img img {
  transform: scale(1.03);
}

.hero__bg-sub {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 8px;
}

.hero__bg-overlay {
  position: absolute;
  inset: 0;
  background: rgba(240,238,234,0.6);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: var(--spacing-lg) var(--spacing-md);
  max-width: 600px;
  margin-left: calc((100vw - var(--max-width)) / 2);
  margin-left: max(var(--spacing-md), calc((100vw - var(--max-width)) / 2));
}

.hero__label {
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--color-text-light);
  font-family: var(--font-en-sans);
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.hero__title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.03em;
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 0 40px rgba(240,238,234,0.9);
}

.hero__sub {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: var(--spacing-md);
}

.hero__actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* --- About Teaser --- */
.about-teaser__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-teaser__image img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.about-teaser__overline {
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--color-text-light);
  font-family: var(--font-en-sans);
  margin-bottom: var(--spacing-sm);
}

.about-teaser__title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.02em;
}

.about-teaser__text {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-light);
}

/* --- Reasons --- */
.reasons__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.reason-card {
  background: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-md);
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.reason-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.08);
}

.reason-card__icon {
  font-size: 32px;
  color: var(--color-black);
  margin-bottom: var(--spacing-md);
}

.reason-card__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.02em;
}

.reason-card__text {
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-text-light);
}

/* --- Works Grid --- */
.works-teaser__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.works-teaser__link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-black);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.work-card {
  display: block;
  transition: opacity var(--transition);
}

.work-card:hover {
  opacity: 1;
}

.work-card:hover .work-card__img img {
  transform: scale(1.05);
}

.work-card__img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-gray-200);
}

.work-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.work-card__tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-white);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 4px 10px;
}

.work-card__body {
  padding: var(--spacing-sm) 0 0;
}

.work-card__meta {
  font-size: 12px;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.work-card__title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

/* --- Full Width Image --- */
.fullwidth-image {
  position: relative;
  height: 480px;
  overflow: hidden;
}

.fullwidth-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fullwidth-image__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
}

.fullwidth-image__copy {
  color: var(--color-white);
  font-size: clamp(18px, 3vw, 28px);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-align: center;
}

/* --- News Teaser --- */
.news-teaser__grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.news-teaser__list {
  border-top: 1px solid var(--color-border);
}

.news-item {
  display: grid;
  grid-template-columns: 100px 1fr 40px;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}

.news-item:hover .news-item__arrow {
  transform: translateX(4px);
}

.news-item__meta time {
  font-size: 12px;
  color: var(--color-text-light);
  font-family: var(--font-en-sans);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.news-item__title {
  font-size: 14px;
  line-height: 1.6;
  font-weight: 500;
}

.news-item__arrow {
  display: flex;
  justify-content: flex-end;
  transition: transform var(--transition);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero__bg-grid {
    grid-template-columns: 1fr;
  }
  .hero__bg-sub {
    display: none;
  }
  .hero__content {
    margin-left: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: 80vh;
  }
  .hero__bg-grid {
    padding-top: 64px;
  }
  .about-teaser__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  .about-teaser__image img {
    height: 300px;
  }
  .reasons__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  .works-teaser__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  .works-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
  }
  .fullwidth-image {
    height: 280px;
  }
  .news-teaser__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  .news-item {
    grid-template-columns: 90px 1fr 30px;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
  }
  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }
  .works-grid {
    grid-template-columns: 1fr;
  }
  .news-item {
    grid-template-columns: 80px 1fr;
  }
  .news-item__arrow {
    display: none;
  }
}