/* ============================================
   Top Page (index.html) Styles
============================================ */

/* First View with Video Background */
.fv {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fv-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: -1;
}

.fv-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.1);
  z-index: 0;
}

.fv-border {
  position: absolute;
  top: clamp(0.75em, 1.5vw, 1em);
  left: clamp(0.75em, 1.5vw, 1em);
  right: clamp(0.75em, 1.5vw, 1em);
  bottom: clamp(0.75em, 1.5vw, 1em);
  border: 1px solid rgba(255, 255, 255, 0.5);
  z-index: 1;
  pointer-events: none;
}

.fv-content {
  position: relative;
  z-index: 1;
  text-align: left;
  color: var(--color-text-white);
  padding: var(--spacing-md);
}

.fv-title {
  color: var(--color-text-white);
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  font-size: clamp(1.25rem, 3vw, 2rem);
  letter-spacing: 0.3em;
  font-family: 'Noto Serif JP', serif;
}

.fv-text {
  font-size: clamp(0.75rem, 1.5vw, 1rem);
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  font-family: 'Noto Serif JP', serif;
}

/* FV Scroll Button */
.fv-scroll-btn {
  position: absolute;
  left: 2em;
  bottom: 2em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  z-index: 1;
  transition: color var(--transition-base);
}

.fv-scroll-btn:hover {
  color: rgba(255, 255, 255, 1);
}

.fv-scroll-text {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  writing-mode: vertical-rl;
  text-orientation: upright;
}

.fv-scroll-line {
  position: relative;
  width: 1px;
  height: 60px;
  background: rgba(255, 255, 255, 0.3);
  overflow: hidden;
}

.fv-scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 30px;
  background: rgba(255, 255, 255, 0.8);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0% {
    transform: translateY(-30px);
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    transform: translateY(60px);
    opacity: 0;
  }
}

/* FV Pickup Movie */
.fv-pickup {
  position: absolute;
  right: 2em;
  bottom: 2em;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.8);
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  max-width: 400px;
  text-decoration: none;
  color: var(--color-text);
  z-index: 1;
  transition: all var(--transition-base);
}

.fv-pickup:hover {
  background: rgba(255,255,255,0.8);
  border-color: rgba(255, 255, 255, 0.8);
  transform: translateY(-4px);
}

.fv-pickup-thumbnail {
  position: relative;
  flex-shrink: 0;
  width: 120px;
  height: 68px;
  overflow: hidden;
  border-radius: 4px;
}

.fv-pickup-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fv-pickup-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.9);
  pointer-events: none;
  transition: transform var(--transition-base);
}

.fv-pickup:hover .fv-pickup-play {
  transform: translate(-50%, -50%) scale(1.1);
}

.fv-pickup-content {
  flex: 1;
  min-width: 0;
}

.fv-pickup-label {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
  opacity: 0.8;
}

.fv-pickup-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.fv-pickup-title {
  font-size: 0.75rem;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* FV Social Links */
.fv-social {
  position: absolute;
  right: 2em;
  top: 200px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  z-index: 1;
}

.fv-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: rgba(255, 255, 255, 0.8);
  transition: all var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.fv-social-link:hover {
  color: rgba(255, 255, 255, 1);
  border-color: rgba(255, 255, 255, 0.8);
  transform: scale(1.1);
  background-color: rgba(255, 255, 255, 0.1);
}

.fv-social-link svg,
.fv-social-link img {
  width: 20px;
  height: 20px;
}

/* Concept Section Icon */
.concept-section .section-subtitle::before {
  background-image: url('../../images/icon/camera-icon.svg');
}

/* Anchor offset for fixed header */
.concept-section {
  scroll-margin-top: calc(80px + 3rem);
}

/* Concept Layout */
.concept-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  margin-top: clamp(var(--spacing-md),5vw,var(--spacing-lg));
}

.concept-content {
  padding-right: var(--spacing-md);
}

.concept-heading {
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  line-height: var(--line-height-heading);
  margin-bottom: var(--spacing-md);
  font-family: 'Noto Serif JP', serif;
  letter-spacing: 0.1em;
}

.concept-text {
  margin-bottom: var(--spacing-sm);
  line-height: 1.9;
}

.concept-image {
  width: 100%;
  height: 100%;
  min-height: 400px;
}

.concept-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
}

/* Concept About Integration */
.concept-about {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.concept-about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.concept-about-heading {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--spacing-md);
  font-family: 'Noto Serif JP', serif;
  letter-spacing: 0.1em;
}

.concept-about-text {
  margin-bottom: var(--spacing-lg);
  line-height: 1.9;
  color: var(--color-text-light);
}

.concept-about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.concept-about-item {
  padding: var(--spacing-md);
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
}

.concept-about-item-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.concept-about-item-text {
  font-size: var(--font-size-sm);
  line-height: 1.8;
  color: var(--color-text-light);
}

.concept-about-link-wrapper {
  margin-top: var(--spacing-lg);
}

.concept-about-link {
  padding-top: var(--spacing-lg);
  text-align: center;
}
.plan-section .section-title{
  font-size: clamp(27px, 3vw, 32px);
  font-weight: 400;
}

.gallery-section .section-title{
  font-size: clamp(27px, 3vw, 32px);
  font-weight: 400;
}
.flow-section .section-title{
  font-size: clamp(27px, 3vw, 32px);
  font-weight: 400;
}
@media (max-width: 480px) {
  .plan-section .section-title{
    font-weight: 300;
  }
  .gallery-section .section-title{
    font-weight: 300;
  }
  .flow-section .section-title{
    font-weight: 300;
  }
}
/* Gallery Section Overrides (Top Page) */
.gallery-section .section-text {
  font-size: var(--font-size-base);
}

.gallery-section .instagram-notice-icon {
  width: clamp(1.25rem, 1vw, 1.5rem);
  height: clamp(1.25rem, 1vw, 1.5rem);
}

.gallery-section .instagram-notice-link {
  font-size: clamp(0.8rem, 0.7vw, 1rem);
}

/* Flow Section Icon */
.flow-section .section-subtitle::before {
  background-image: url('../../images/icon/flow-icon.svg');
}

/* Flow Section (Top Page) */
.flow-section {
  position: relative;
}

.flow-list {
  max-width: 800px;
  margin: clamp(var(--spacing-md),5vw,var(--spacing-xl)) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.flow-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background-color: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}

.flow-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.flow-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.flow-item-number {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.flow-item-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.flow-item-title {
  font-size: clamp(1rem, 1.7vw, 1.1rem);
  color: var(--color-text);
  margin: 0;
}

.flow-item-text {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-text-light);
  margin: 0;
}

.flow-cta {
  margin-top: var(--spacing-xl);
  text-align: center;
}

/* About Section Override (Top Page - dark background) */
.about-section {
  background-color: var(--color-primary);
  color: var(--color-text-white);
}

.about-section .section-title {
  color: var(--color-text-white);
}

.about-section .section-subtitle {
  color: var(--color-text-white);
}

.about-section .section-subtitle::before {
  background-color: var(--color-text-white);
}

.about-section .section-text {
  color: var(--color-text-white);
}

.about-section .card {
  background-color: var(--color-primary);
  color: var(--color-text-white);
}

.about-section .card-title {
  color: var(--color-text-white);
}

.about-section .card-text {
  color: var(--color-text-white);
}

/* Top Page Responsive */
@media (max-width: 768px) {
  .fv-social {
    top: auto;
    bottom: 120px;
  }

  .concept-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .concept-content {
    padding-right: 0;
  }

  .concept-image {
    min-height: 300px;
  }

  .concept-about {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
  }

  .concept-about-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .concept-about-item {
    padding: var(--spacing-sm);
  }

  /* Flow Responsive (Top Page) */
  .flow-item {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
  }

  .flow-item-number {
    font-size: 1rem;
    justify-content: flex-start;
  }

  .flow-item-title {
    font-size: 1rem;
  }

  .flow-item-text {
    font-size: 0.875rem;
  }

  /* FV Pickup - Mobile */
  .fv-pickup {
    right: 1.5em;
    bottom: 1.5em;
    max-width: 280px;
    padding: 0.75rem;
    gap: 0.75rem;
  }

  .fv-pickup-thumbnail {
    width: 90px;
    height: 51px;
  }

  .fv-pickup-label {
    font-size: 0.5rem;
    gap: 0.2rem;
  }

  .fv-pickup-icon {
    width: 12px;
    height: 12px;
  }

  .fv-pickup-title {
    font-size: 0.625rem;
  }
}