@charset "UTF-8";
:root {
  --text-color: #1a1a1a;
  --color-text-main: var(--text-color);
  --nav-gradient-stop: rgba(0, 0, 0, 0.65);
}

body.home {
  background-color: #000;
  color: #fff;
  font-family: var(--font-sans);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

body.home .site-header::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: calc(var(--header-h) + 2.5rem);
  pointer-events: none;
  z-index: -1;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.78) 0%, rgba(255, 255, 255, 0.38) 70%, rgba(255, 255, 255, 0) 100%);
}

.bg-container {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: #050505;
  pointer-events: none;
}

.bg-container::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 35% 72%, rgba(255, 240, 225, 0.14) 0%, rgba(255, 240, 225, 0.08) 30%, rgba(255, 255, 255, 0) 58%);
  mix-blend-mode: screen;
  opacity: 0;
  transform: scale(1);
  transition: opacity 0.62s ease, transform 0.62s ease;
  pointer-events: none;
}

.bg-slide {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.12;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.bg-slide.active {
  opacity: 1;
  z-index: 1;
  animation: kenBurns 16s ease-in-out forwards;
}

.bg-slide picture,
.bg-slide img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.bg-slide img {
  object-fit: cover;
  transition: filter 0.62s ease;
  transform: scale(1.05);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

html.ambient-pulse .bg-slide.active img {
  filter: brightness(1.06) saturate(1.03);
}

html.ambient-pulse .bg-container::after {
  opacity: 0.1;
  transform: scale(1.02);
}

.bg-overlay-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse at bottom left, rgba(0, 0, 0, 0.45) 0%, rgba(0, 0, 0, 0.25) 20%, rgba(0, 0, 0, 0) 45%);
}

@keyframes kenBurns {
  0% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1.15);
  }
}
.nav-container {
  position: absolute;
  bottom: 2.25rem;
  left: 2.25rem;
  z-index: 30;
}

.style-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}

.style-item {
  position: relative;
  cursor: pointer;
  padding-left: 0.4rem;
  transition: padding 0.28s var(--ui-ease);
}

.style-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2rem;
  bottom: 0.2rem;
  width: 1px;
  background: rgba(255, 255, 255, 0.85);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.28s var(--ui-ease);
  opacity: 1;
}

.style-item.active {
  padding-left: 0.9rem;
}

.style-item:hover::before,
.style-item.active::before {
  transform: scaleY(1);
}

.style-item a {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
  transition: color 0.24s var(--ui-ease), letter-spacing 0.24s var(--ui-ease);
  padding: 0.25rem 0;
  font-weight: 500;
  line-height: 1.25;
}

/* li内の全要素を同一リンクにする */
.style-item .style-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
}

.style-item .style-name {
  display: inline-block;
}

.style-item:hover a,
.style-item.active a {
  color: #fff;
  letter-spacing: 0.17em;
}

.style-item.active a {
  font-weight: 600;
}

.view-link {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.26s var(--ui-ease), transform 0.26s var(--ui-ease);
  margin-left: 0.8rem;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 400;
  font-size: 0.7rem;
}

.style-item.active .view-link {
  opacity: 1;
  transform: translateX(0);
}

.view-link .pipe {
  font-size: 0.68rem;
  opacity: 0.6;
}

.view-link .text {
  font-family: var(--font-serif-italic);
  font-style: italic;
  font-size: 0.8rem;
  text-transform: lowercase;
  letter-spacing: 0.08em;
}

.view-link .arrow {
  font-size: 0.75rem;
  transition: transform 0.3s ease;
}

.style-item.active:hover .arrow {
  transform: translateX(4px);
}

@media (max-width: 768px) {
  .bg-overlay-scrim {
    background: radial-gradient(ellipse at bottom left, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.3) 25%, rgba(0, 0, 0, 0) 50%);
  }
  .nav-container {
    bottom: calc(1.25rem + var(--home-footer-offset, 0px));
    left: 1.25rem;
  }
  .style-list {
    gap: 0.35rem;
  }
  .style-item {
    padding-left: 0.35rem;
  }
  .style-item.active {
    padding-left: 0.75rem;
  }
  .style-item a {
    font-size: 0.78rem;
    padding: 0.3rem 0;
    letter-spacing: 0.13em;
    color: rgba(255, 255, 255, 0.7);
  }
  .view-link {
    font-size: 0.72rem;
  }
  .view-link .text {
    font-size: 0.78rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  html.ambient-pulse .bg-slide.active img {
    filter: none;
  }
  html.ambient-pulse .bg-container::after {
    opacity: 0;
  }
}