/* ============================================================
   STUDIO Butter — Home Page Styles
   ============================================================ */

/* ============================================================
   1. HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.hero__bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.45;
}

/* Dark gradient overlay on hero image */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 10, 10, 0.85) 0%,
    rgba(10, 10, 10, 0.5) 40%,
    rgba(10, 10, 10, 0.7) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 1000px;
  padding: 0 var(--container-padding);
}

.hero__title {
  font-family: var(--font-body);
  font-weight: var(--fw-light);
  font-size: clamp(1.4rem, 2.8vw, 2.2rem);
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 1.2s var(--ease-out) 0.3s forwards;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-weight: var(--fw-thin);
  font-size: clamp(0.8rem, 1.4vw, 0.95rem);
  line-height: var(--lh-relaxed);
  letter-spacing: var(--ls-normal);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 1.2s var(--ease-out) 0.7s forwards;
}

.hero__cta {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 1.2s var(--ease-out) 1.1s forwards;
}

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll indicator */
.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  opacity: 0;
  animation: heroFadeIn 1s var(--ease-out) 1.8s forwards;
}

.hero__scroll-indicator span {
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: var(--ls-ultra);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(
    to bottom,
    var(--color-accent) 0%,
    transparent 100%
  );
  animation: scrollPulse 2s var(--ease-in-out) infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50%      { opacity: 1;   transform: scaleY(1); }
}


/* ============================================================
   2. CLIENTS SECTION
   ============================================================ */
.clients {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.clients__label {
  text-align: center;
  font-family: var(--font-display);
  font-size: var(--fs-caption);
  letter-spacing: var(--ls-ultra);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.clients__list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-xl);
}

.clients__logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.client-img {
  max-height: 45px;
  max-width: 160px;
  object-fit: contain;
  /* Light mode logo conversion */
  filter: grayscale(1);
  mix-blend-mode: multiply;
  opacity: 0.5;
  transition: opacity var(--duration-normal) var(--ease-out), filter var(--duration-normal) var(--ease-out);
}

.client-img:hover {
  opacity: 1;
}


/* ============================================================
   3. WORKS PREVIEW SECTION
   ============================================================ */
.works-preview {
  padding: var(--space-3xl) 0;
}

.works-preview__view-all {
  text-align: center;
  margin-top: var(--space-2xl);
}


/* ============================================================
   4. FEATURES SECTION
   ============================================================ */
.features {
  padding: var(--space-3xl) 0;
  background-color: var(--color-bg-elevated);
}

.features-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-4xl);
  padding: 0 var(--container-padding);
}

.features-intro__title {
  font-family: var(--font-body);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: var(--fw-light);
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.features-intro__text {
  font-size: var(--fs-small);
  line-height: var(--lh-relaxed);
  color: var(--color-text-secondary);
  font-weight: var(--fw-light);
}

.feature-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.feature-item + .feature-item {
  margin-top: var(--space-3xl);
}

/* Alternate layout: even items flip the order */
.feature-item:nth-child(even) {
  direction: rtl;
}

.feature-item:nth-child(even) > * {
  direction: ltr;
}

.feature-item__image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.feature-item__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slower) var(--ease-out);
}

.feature-item:hover .feature-item__image {
  transform: scale(1.03);
}

.feature-item__content {
  padding: var(--space-lg) 0;
  position: relative;
  z-index: 1;
}

.feature-item__number {
  position: absolute;
  top: -30px;
  left: -20px;
  font-family: var(--font-display);
  font-size: clamp(5rem, 10vw, 8rem);
  font-weight: var(--fw-light);
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.08;
  z-index: -1;
  user-select: none;
  letter-spacing: -0.02em;
}

.feature-item__title {
  position: relative;
  font-family: var(--font-body);
  font-weight: var(--fw-light);
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  letter-spacing: 0.06em;
  line-height: var(--lh-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.feature-item__description {
  font-size: var(--fs-small);
  font-weight: var(--fw-light);
  line-height: var(--lh-relaxed);
  color: var(--color-text-secondary);
}


/* ============================================================
   5. SERVICES & PRICE SECTION
   ============================================================ */
.services {
  padding: var(--space-3xl) 0;
}

.services__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.service-column__header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
  transition: border-color var(--duration-normal) var(--ease-out);
}

.service-column:hover .service-column__header {
  border-color: var(--color-accent);
}

.service-column__title {
  font-family: var(--font-display);
  font-size: var(--fs-small);
  letter-spacing: var(--ls-ultra);
  text-transform: uppercase;
  color: var(--color-text-primary);
}

.services__note {
  max-width: var(--container-narrow);
  margin: var(--space-2xl) auto 0;
  padding: 0 var(--container-padding);
  font-size: var(--fs-caption);
  line-height: var(--lh-relaxed);
  color: var(--color-text-muted);
  text-align: center;
}

.services__cta {
  text-align: center;
  margin-top: var(--space-2xl);
}




/* ============================================================
   Rental Banner
   ============================================================ */
.rental-banner {
  position: relative;
  padding: 120px 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  margin-top: var(--space-2xl);
}

.rental-banner__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(255, 255, 255, 0.85);
  z-index: 1;
}

.rental-banner__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: var(--fw-light);
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.rental-banner__text {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 600px;
  line-height: var(--lh-relaxed);
}

/* ============================================================
   7. ACCESS SECTION
   ============================================================ */
.access-section {
  padding: var(--space-3xl) 0;
  background-color: var(--color-bg);
}

.access-map {
  width: 100%;
  height: 400px;
  margin-bottom: var(--space-xl);
  border-radius: 4px;
  overflow: hidden;
  /* ライトテーマに合わせて少し彩度を落とす */
  filter: grayscale(80%) opacity(0.9);
}

.access-map iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.access-info {
  font-family: var(--font-body);
  color: var(--color-text-primary);
  line-height: var(--lh-relaxed);
  text-align: left;
}

.access-info__name {
  font-size: var(--fs-h3);
  font-weight: var(--fw-light);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.access-info__address,
.access-info__hours {
  font-size: var(--fs-base);
  font-weight: var(--fw-light);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.access-info__notes {
  list-style: none;
  padding: 0;
  margin-top: var(--space-lg);
}

.access-info__notes li {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
  opacity: 0.8;
}

/* ============================================================
   RESPONSIVE: Home Page
   ============================================================ */
@media (max-width: 1024px) {
  .feature-item {
    gap: var(--space-xl);
  }

  .services__grid {
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .hero__content {
    padding: 0 var(--space-md);
  }

  .clients__list {
    gap: var(--space-xs);
  }

  .feature-item {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .feature-item:nth-child(even) {
    direction: ltr;
  }

  .feature-item__content {
    padding: 0;
  }

  .services__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}