@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&family=Noto+Sans+JP:wght@300;400;700;900&display=swap');

:root {
  --primary: #0ea5e9;
  --primary-hover: #0284c7;
  --secondary: #f43f5e;
  --background: #bae6fd;
  --surface: rgba(255, 255, 255, 0.65);
  --surface-hover: rgba(255, 255, 255, 0.85);
  --text: #0f172a;
  --text-muted: #64748b;
  --gradient: linear-gradient(135deg, #0ea5e9, #3b82f6);
  --glass: rgba(255, 255, 255, 0.75);
  --border: rgba(255, 255, 255, 0.6);
  --radius: 16px;
  --glow-primary: rgba(14, 165, 233, 0.4);
  --glow-secondary: rgba(244, 63, 94, 0.4);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  background-color: var(--background);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-attachment: fixed;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

/* Layout */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
  padding-top: 80px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 1000;
  transition: all 0.3s ease;
}

.brand {
  font-size: 1.5rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-link {
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  padding: 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link:hover, .nav-link.active {
  color: var(--text);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--surface);
    padding: 2rem;
    border-bottom: 1px solid var(--border);
  }
  .mobile-menu-btn {
    display: block;
  }
}

/* Page Transitions */
.page-enter {
  opacity: 0;
  transform: translateY(20px);
  animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

/* Typography elements */
.page-title {
  font-size: 3rem;
  margin: 4rem 0 3rem 0;
  position: relative;
  display: inline-block;
  z-index: 1;
}

.page-title::after {
  content: attr(data-en);
  position: absolute;
  top: 50%;
  left: 100%;
  transform: translate(20px, -50%) rotate(-5deg); /* 右横に配置 */
  font-size: 3.5rem;
  font-weight: 700;
  font-family: 'Brush Script MT', 'Dancing Script', 'Caveat', cursive;
  font-style: italic;
  color: rgba(2, 132, 199, 0.25);
  white-space: nowrap;
  z-index: -1;
  pointer-events: none;
  letter-spacing: 0.05em;
}

.page-title::before {
  content: '';
  position: absolute;
  width: 80px; /* 固定幅でアクセントに */
  height: 4px;
  background: var(--gradient);
  bottom: -10px;
  left: 0; /* 左寄せ */
  border-radius: 2px;
}

@media (max-width: 768px) {
  .page-title::after {
    font-size: 2rem;
    transform: translate(10px, -50%) rotate(-5deg);
  }
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease, border-color 0.4s ease, background 0.4s ease;
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px var(--glow-primary);
  border-color: rgba(255, 255, 255, 0.8);
  background: var(--surface-hover);
}

/* Footer */
.footer {
  margin-top: 4rem;
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--surface);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Home Hero */
.hero {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 4rem 2rem;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.5);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  text-align: center;
}

.hero-title {
  font-size: 4.5rem;
  font-weight: 900;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #0f172a, #334155);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: #ffffff;
  font-weight: 600;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
  margin-bottom: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 30px;
  font-weight: 600;
  font-size: 1.1rem;
  border: none;
  cursor: pointer;
  background: var(--gradient);
  color: white;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.4);
}

.btn:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 25px var(--glow-primary);
}

/* Section Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  background: rgba(14, 165, 233, 0.2);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

/* Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
}

.data-table th, .data-table td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background: rgba(0, 0, 0, 0.03);
  font-weight: 600;
  color: var(--text-muted);
}

.data-table tr:hover {
  background: rgba(0, 0, 0, 0.02);
}

/* Helper styles for Members tabs */
.tab-btn {
  padding: 0.75rem 2rem;
  border-radius: 30px;
  background: transparent;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.1rem;
}

.tab-btn.grade-4 { border: 2px solid #0ea5e9; color: #0ea5e9; }
.tab-btn.grade-4.active { background: #0ea5e9; color: #fff; }

.tab-btn.grade-3 { border: 2px solid #f43f5e; color: #f43f5e; }
.tab-btn.grade-3.active { background: #f43f5e; color: #fff; }

.tab-btn.grade-2 { border: 2px solid #10b981; color: #10b981; }
.tab-btn.grade-2.active { background: #10b981; color: #fff; }

.tab-btn.grade-1 { border: 2px solid #8b5cf6; color: #8b5cf6; }
.tab-btn.grade-1.active { background: #8b5cf6; color: #fff; }

.member-card {
  display: none;
}
.member-card.active {
  display: flex !important;
}

/* Search Box */
.search-wrapper {
  position: relative;
  width: 100%;
  max-width: 300px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.search-input {
  width: 100%;
  padding: 0.8rem 1rem 0.8rem 2.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.03);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.3s ease;
}

/* Member PB Display */
.member-pb {
  font-weight: 600;
  color: var(--text);
  background: var(--surface-hover);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  margin-top: 1rem;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 80%;
}
.member-pb i {
  color: var(--primary);
}

/* Circular Parts Layout */
.parts-interactive {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
  padding: 4rem 2rem;
  position: relative;
  z-index: 2;
}

.parts-section-container {
  position: relative;
  width: 100%;
  min-height: 450px; /* Added min-height to give photos more vertical space (less zoomed in) */
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
  margin: 2rem 0;
  background: var(--surface); /* Fallback */
}

.parts-bg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
  z-index: 0;
}

.parts-bg-layer.active {
  opacity: 1;
}



.parts-circle-wrapper {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
  margin-top: 2rem;
  padding: 2rem 0;
}

@media (min-width: 1024px) {
  .parts-layout-desktop {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 3rem;
    align-items: stretch;
    height: 60vh; /* Fit comfortably in viewport */
    min-height: 500px;
    margin-bottom: 4rem;
  }
  
  .parts-interactive {
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .parts-circle-wrapper {
    margin-top: 0;
    padding: 0;
  }
  
  .parts-content-desktop {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 1.5rem;
  }
  
  .parts-section-container {
    flex: 1; /* Take up top half dynamically */
    min-height: 250px; /* Ensure it has height even if flex collapses */
    margin: 0;
  }
  
  .part-details-wrapper {
    padding: 0 !important;
    flex-shrink: 0;
  }
}

.circle-container {
  position: relative;
  width: 320px;
  height: 320px;
}

.circle-track {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px dashed rgba(0, 0, 0, 0.1);
  z-index: 1;
}

.circle-item {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 90px;
  height: 90px;
  margin: -45px; /* Offset by half width/height */
  border-radius: 50%;
  background: var(--surface);
  border: 3px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  
  /* Circle math: Dynamic items. Radius = 160px */
  transform: rotate(calc(calc(360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) - 90deg)) translate(160px) rotate(calc(calc(-360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) + 90deg));
}

.circle-item .item-label {
  font-size: 0.75rem;
  font-weight: 700;
  margin-top: 4px;
  color: var(--text);
  transition: color 0.3s;
}

.circle-item:hover {
  transform: rotate(calc(calc(360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) - 90deg)) translate(160px) rotate(calc(calc(-360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) + 90deg)) scale(1.1);
  border-color: var(--primary);
  box-shadow: 0 8px 25px rgba(14, 165, 233, 0.2);
}

.circle-item.active {
  transform: rotate(calc(calc(360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) - 90deg)) translate(160px) rotate(calc(calc(-360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) + 90deg)) scale(1.15);
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1), 0 10px 30px rgba(14, 165, 233, 0.3);
}

.circle-item.active .item-icon {
  transform: scale(1.1);
}

.circle-item.active .item-label {
  color: var(--primary);
}

.part-details {
  width: 100%;
  max-width: 700px;
  position: relative;
}

.part-detail-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3rem;
  text-align: center;
  display: none;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  animation: fadeInScale 0.4s ease forwards;
  box-shadow: 0 10px 40px rgba(0,0,0,0.05);
}

.part-detail-card.active {
  display: block;
}

.part-detail-card h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.part-detail-card p {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.8;
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 768px) {
  .circle-container {
    width: 260px;
    height: 260px;
  }
  .circle-item {
    width: 76px;
    height: 76px;
    margin: -38px;
    transform: rotate(calc(calc(360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) - 90deg)) translate(130px) rotate(calc(calc(-360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) + 90deg));
  }
  .circle-item:hover {
    transform: rotate(calc(calc(360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) - 90deg)) translate(130px) rotate(calc(calc(-360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) + 90deg)) scale(1.1);
  }
  .circle-item.active {
    transform: rotate(calc(calc(360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) - 90deg)) translate(130px) rotate(calc(calc(-360deg / var(--total, 5)) * (var(--i) - var(--offset, 0)) + 90deg)) scale(1.15);
  }
  .circle-item .item-label {
    font-size: 0.65rem;
  }
  .circle-item .item-icon {
    width: 24px;
    height: 24px;
  }
  .part-detail-card {
    padding: 2rem 1.5rem;
  }
  .part-detail-card h3 {
    font-size: 1.5rem;
  }
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* 3D Carousel Styles */
.carousel-wrapper {
  position: relative;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 4rem 0;
}

.carousel-nav {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  z-index: 10;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  transition: all 0.3s;
}

.carousel-nav:hover {
  background: var(--primary);
  color: white;
  transform: scale(1.1);
  box-shadow: 0 0 20px var(--glow-primary);
}

.carousel-scene {
  perspective: 1200px;
  width: 320px;
  height: 400px;
  position: relative;
  margin: 0 2rem;
}

.carousel-container {
  width: 100%;
  height: 100%;
  position: absolute;
  transform-style: preserve-3d;
  transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.carousel-item {
  position: absolute;
  width: 260px;
  height: 380px;
  left: 30px;
  top: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 1.5rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  transition: opacity 0.5s, box-shadow 0.5s;
  /* Smoothly render the backface to hide items behind */
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.carousel-item.hidden {
  display: none !important;
}

.carousel-item.active-item {
  box-shadow: 0 0 0 3px var(--primary), 0 20px 40px var(--glow-primary);
  background: rgba(255, 255, 255, 0.95);
}

.member-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(0,0,0,0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  border: 2px solid;
}

.member-quote {
  color: var(--text-muted);
  margin-top: 1.5rem;
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.4;
}

@media (max-width: 768px) {
  .carousel-scene {
    width: 260px;
    height: 360px;
  }
  .carousel-item {
    width: 220px;
    height: 340px;
    left: 20px;
    padding: 2rem 1rem;
  }
  .carousel-nav {
    width: 44px;
    height: 44px;
  }
}

/* Blog Styles */
.blog-card {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}

.blog-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
  background-color: rgba(0, 0, 0, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.blog-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-date {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.blog-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.4;
}

.blog-excerpt {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  flex: 1;
  white-space: pre-wrap;
}

/* Detailed Blog Post Styles */
.blog-post-header {
  margin-bottom: 2rem;
  text-align: center;
}

.blog-post-date {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.blog-post-title {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 2rem;
}

.blog-post-image-container {
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 300px;
  max-height: 500px;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 3rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  background: rgba(0,0,0,0.02);
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-post-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.blog-post-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text);
  white-space: pre-wrap;
  padding: 0 1rem;
}

@media (max-width: 768px) {
  .blog-post-title {
    font-size: 1.8rem;
  }
  .blog-post-content {
    font-size: 1rem;
  }
}

/* Slideshow Common Styles */
.slideshow-container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.slideshow-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}

.slideshow-slide.active {
  opacity: 1;
  z-index: 1;
}

.slideshow-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.slideshow-bg {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.slideshow-indicators {
  position: absolute;
  bottom: 15px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}

.slideshow-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.slideshow-indicator.active {
  background: rgba(255, 255, 255, 1);
  transform: scale(1.3);
}