/* ============================================================
   Top Page (front-page.php)
   ============================================================ */

/* Hero */
.top-hero {
  position: relative;
  height: 100svh;
  min-height: 520px;
  max-height: 900px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-bg-dark);
}

.top-hero__video,
.top-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.top-hero__bg { background-size: cover; background-position: center; }

.top-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(10, 40, 70, .75) 0%,
    rgba(15, 70, 120, .55) 60%,
    rgba(15, 70, 120, .35) 100%
  );
}

.top-hero__content {
  position: relative;
  z-index: 1;
  color: #fff;
}

.top-hero__copy-en {
  font-family: var(--font-en);
  font-size: clamp(.9rem, 2vw, 1.15rem);
  font-style: italic;
  letter-spacing: .06em;
  opacity: .85;
  margin-bottom: .75em;
}

.top-hero__copy-ja {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .04em;
  text-shadow: 0 2px 20px rgba(0,0,0,.3);
}

/* Lead */
.top-lead {
  padding-block: var(--sp-xl);
}

.top-lead__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--sp-xl);
  align-items: start;
}

.top-lead__heading {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  margin-bottom: .3em;
}

.top-lead__heading-en {
  font-family: var(--font-en);
  font-size: .85rem;
  color: var(--color-text-sub);
  margin-bottom: 1.5em;
}

.top-lead__body {
  font-size: .95rem;
  line-height: 2;
  color: var(--color-text-sub);
}

.top-lead__more-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--color-bg-gray);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  font-size: .9rem;
  font-weight: 700;
  color: var(--color-text);
  min-width: 200px;
  transition: background var(--transition), border-color var(--transition);
  line-height: 1.5;
}

.top-lead__more-link:hover {
  background: var(--color-bg-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.top-lead__more-sub {
  display: block;
  font-size: .72rem;
  font-weight: 400;
  color: var(--color-text-sub);
  font-family: var(--font-en);
  letter-spacing: .03em;
  margin-top: .5em;
}

/* Quality Grid */
.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.quality-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.5rem 1.25rem;
  background: #fff;
  transition: background var(--transition);
}

.quality-card:hover { background: var(--color-bg-light); }

.quality-card__en {
  font-family: var(--font-en);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: .6em;
}

.quality-card__ja {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: .5em;
}

.quality-card__sub {
  font-size: .82rem;
  color: var(--color-text-sub);
  line-height: 1.55;
  margin: 0;
}

/* Fish Grid */
.fish-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .75rem;
}

.fish-item__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem;
  background: #2E3A48;
  border-radius: var(--radius);
  text-align: center;
  color: #fff;
  transition: background var(--transition);
  gap: .35em;
}

.fish-item__link:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

.fish-item__ja {
  font-size: 1rem;
  font-weight: 700;
}

.fish-item__en {
  font-family: var(--font-en);
  font-size: .72rem;
  opacity: .75;
  letter-spacing: .03em;
}

/* Banner Grid */
.top-banner-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.top-banner-grid .top-banner-item:nth-child(4),
.top-banner-grid .top-banner-item:nth-child(5) {
  /* 下段2アイテム：各1.5カラム幅 */
}

.top-banner-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1.5rem;
  background: #fff;
  min-height: 140px;
  transition: background var(--transition);
}

.top-banner-item:hover { background: var(--color-bg-light); }

.top-banner-item__ja {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: .3em;
}

.top-banner-item__en {
  font-family: var(--font-en);
  font-size: .72rem;
  color: var(--color-text-sub);
  letter-spacing: .06em;
}

/* News section on top */
.top-news__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--sp-md);
}

.top-news__head .sec-head { margin-bottom: 0; }

.top-news__social {
  margin-top: var(--sp-md);
  text-align: center;
  font-size: .85rem;
  color: var(--color-text-sub);
  padding-top: var(--sp-md);
  border-top: 1px solid var(--color-border-light);
}

/* Responsive */
@media (max-width: 900px) {
  .top-lead__inner { grid-template-columns: 1fr; }
  .top-lead__more-link { flex-direction: row; gap: 1rem; min-width: auto; }
  .quality-grid { grid-template-columns: repeat(2, 1fr); }
  .fish-grid { grid-template-columns: repeat(4, 1fr); }
  .top-banner-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .top-hero { height: 80svh; min-height: 420px; }
  .fish-grid { grid-template-columns: repeat(2, 1fr); }
  .top-news__head { flex-direction: column; align-items: flex-start; gap: var(--sp-sm); }
}