/* ==========================================================================
   トップページ ヒーローセクション

   対象: 動画背景ヒーロー、スクロールダウンアニメーション、予約ボタン
   関連HTML: front-page.php / src/index.html
   ブレークポイント: 768px以下 → モバイル表示
   ========================================================================== */

.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 600px;
  overflow: hidden;
}

.hero-link {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.hero-video-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  z-index: -1;
  overflow: hidden;
}

.hero-video {
  width: 100%;
  height: 100vh;
  height: 100dvh;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.2);
  pointer-events: none;
}

.hero-content {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}

.scroll-down {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: white;
}

.scroll-text {
  font-size: 0.8rem;
  font-family: var(--font-english);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.scroll-icon {
  display: block;
  width: 1px;
  height: 50px;
  background: white;
  position: relative;
  animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-icon::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 8px;
  height: 8px;
  border-right: 1px solid white;
  border-bottom: 1px solid white;
  transform: translateX(-50%) rotate(45deg);
}

@keyframes scrollBounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(10px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-icon {
    animation: none;
  }
}

/* Hero Value Proposition */
.hero-value-proposition {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  text-align: center;
  color: white;
  pointer-events: none;
}

.hero-logo-text {
  font-family: var(--font-english);
  font-size: 4rem;
  letter-spacing: 0.3em;
  padding-left: 0.3em;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  margin-bottom: 0.75rem;
  font-weight: 300;
}

.hero-sub-copy {
  font-size: 1rem;
  letter-spacing: 0.2em;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
  opacity: 0.9;
}

/* Hero Reservation Button */
.hero-reservation-btn {
  position: absolute;
  bottom: 2.5rem;
  right: 2.5rem;
  z-index: 10;
}

.hero-reservation-btn span {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background-color: var(--color-primary);
  color: white;
  font-size: 1.1rem;
  padding: 1rem 2.5rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  min-width: 240px;
}

.hero-link:hover .hero-reservation-btn span {
  background-color: #006666;
}

/* Hero Responsive */
@media (max-width: 768px) {
  .hero-logo-text {
    font-size: 2.5rem;
  }

  .hero-sub-copy {
    font-size: 0.8rem;
  }

  .hero-content {
    bottom: 2rem;
  }

  .scroll-down {
    transform: scale(0.9);
  }

  .hero-reservation-btn {
    bottom: 7.5rem;
    right: 0rem;
  }

  .hero-reservation-btn span {
    font-size: 0.9rem;
    padding: 0.8rem 1.5rem;
    min-width: 180px;
  }
}