:root {
  --bg:        #0A0A0C;
  --bg-card:   #111116;
  --fg:        #F4F4F9;
  --fg-muted:  #8888A4;
  --accent:    #3D5AFE;
  --accent-10: rgba(61,90,254,0.10);
  --accent-20: rgba(61,90,254,0.20);
  --border:    #2D2D35;
  --font-jp:   'Noto Sans JP', sans-serif;
  --font-en:   'Inter', sans-serif;
  --radius:    0.75rem;
  --transition: 0.4s cubic-bezier(0.4,0,0.2,1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-jp); background: var(--bg); color: var(--fg); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
*:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

section[id] {
  scroll-margin-top: 5rem;
}

.container { max-width: 1280px; margin: 0 auto; padding: 0 2rem; }
@media (min-width: 1024px) { .container { padding: 0 4rem; } }

.eyebrow { font-family: var(--font-en); font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; display: block; }
.section-title { font-family: var(--font-jp); font-weight: 700; font-size: clamp(1.75rem, 4vw, 2.5rem); letter-spacing: -0.02em; color: var(--fg); line-height: 1.2; }
.section-body { color: var(--fg-muted); font-size: 1rem; line-height: 1.8; max-width: 48rem; }
.micro-rule { border: none; border-top: 0.5px solid var(--border); }
.glass { background: rgba(10,10,12,0.70); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
.grid-overlay { background-image: linear-gradient(rgba(61,90,254,0.06) 0.5px, transparent 0.5px), linear-gradient(90deg, rgba(61,90,254,0.06) 0.5px, transparent 0.5px); background-size: 80px 80px; }

.btn-primary { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.875rem 2rem; background: var(--accent); color: #fff; font-family: var(--font-jp); font-weight: 600; font-size: 0.875rem; border-radius: var(--radius); border: none; cursor: pointer; transition: background var(--transition), transform var(--transition); }
.btn-primary:hover { background: #2a43e8; transform: translateY(-1px); }
.btn-ghost { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.875rem 2rem; background: transparent; color: var(--fg); font-family: var(--font-jp); font-weight: 500; font-size: 0.875rem; border-radius: var(--radius); border: 0.5px solid var(--border); cursor: pointer; transition: background var(--transition); }
.btn-ghost:hover { background: rgba(255,255,255,0.05); }

.dot-list li { display: flex; align-items: center; gap: 0.625rem; font-size: 0.875rem; color: var(--fg-muted); margin-bottom: 0.375rem; }
.dot-list li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }

.anim { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.anim.visible { opacity: 1; transform: none; }
.anim-delay-1 { transition-delay: 0.1s; }
.anim-delay-2 { transition-delay: 0.2s; }
.anim-delay-3 { transition-delay: 0.3s; }
.anim-delay-4 { transition-delay: 0.4s; }
@media (prefers-reduced-motion: reduce) { .anim { opacity: 1; transform: none; transition: none; } }

/* NAVBAR */
#navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background var(--transition), border-color var(--transition); }
#navbar.scrolled { background: rgba(10,10,12,0.80); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 0.5px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 4.5rem; }
.nav-logo { display: flex; align-items: center; gap: 0.75rem; }
.nav-logo img { width: 2rem; height: 2rem; object-fit: contain; filter: invert(1); }
.nav-logo span { font-family: var(--font-en); font-weight: 700; font-size: 0.9rem; letter-spacing: -0.01em; color: var(--fg); }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a { font-family: var(--font-jp); font-size: 0.875rem; color: var(--fg-muted); transition: color var(--transition); }
.nav-links a:hover { color: var(--fg); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 1.5px; background: var(--fg); border-radius: 2px; transition: all 0.3s; }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }
#mobile-menu { display: none; background: rgba(10,10,12,0.95); backdrop-filter: blur(20px); border-top: 0.5px solid var(--border); padding: 1.5rem 2rem; }
#mobile-menu.open { display: block; }
#mobile-menu a { display: block; font-family: var(--font-jp); font-size: 1rem; color: var(--fg-muted); padding: 0.625rem 0; transition: color var(--transition); }
#mobile-menu a:hover { color: var(--fg); }
@media (max-width: 900px) { .nav-links { display: none; } .hamburger { display: flex; } }

/* HERO */
#hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.4; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(10,10,12,0.55), rgba(10,10,12,0.45) 50%, #0A0A0C); }
.hero-grid { position: absolute; inset: 0; pointer-events: none; }
.hero-content { position: relative; z-index: 2; padding: 8rem 0 6rem; max-width: 52rem; }
.hero-eyebrow { font-family: var(--font-en); font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 1.5rem; }
.hero-title { font-family: var(--font-jp); font-weight: 900; font-size: clamp(2.2rem, 6vw, 4.5rem); letter-spacing: -0.02em; line-height: 1.15; color: var(--fg); }
.hero-title .accent { color: var(--accent); }
.hero-sub { margin-top: 2rem; font-size: 1.1rem; color: var(--fg-muted); line-height: 1.8; max-width: 40rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 3rem; }
.scroll-indicator { position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%); z-index: 2; animation: bounce 2s ease-in-out infinite; }
.scroll-indicator svg { color: var(--fg-muted); }
@keyframes bounce { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }

/* ABOUT */
#about { padding: 7rem 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; margin-bottom: 5rem; }
@media (max-width: 768px) { .about-grid { grid-template-columns: 1fr; gap: 2rem; } }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 0.5px solid var(--border); border-radius: var(--radius); overflow: hidden; }
@media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
.stat-cell { background: var(--bg-card); padding: 2rem; text-align: center; border-right: 0.5px solid var(--border); }
.stat-cell:last-child { border-right: none; }
.stat-value { font-family: var(--font-en); font-weight: 700; font-size: 1.75rem; color: var(--accent); letter-spacing: -0.02em; }
.stat-label { font-family: var(--font-jp); font-size: 0.8rem; color: var(--fg-muted); margin-top: 0.375rem; }

/* JOURNEY */
#journey { padding: 7rem 0; position: relative; overflow: hidden; }
.journey-bg { position: absolute; inset: 0; pointer-events: none; }
.journey-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.07; }
.journey-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to right, #0A0A0C 10%, transparent 40%, transparent 60%, #0A0A0C 90%); }
.timeline { position: relative; margin-top: 4rem; }
.timeline::before { content: ''; position: absolute; left: 1rem; top: 0; bottom: 0; width: 0.5px; background: var(--border); }
@media (min-width: 768px) { .timeline::before { left: 50%; } }
.timeline-item { position: relative; padding-left: 3rem; margin-bottom: 3.5rem; }
@media (min-width: 768px) { .timeline-item { width: 50%; padding: 0 3.5rem 0 0; text-align: right; margin-bottom: 3rem; } .timeline-item:nth-child(even) { margin-left: 50%; padding: 0 0 0 3.5rem; text-align: left; } }
.timeline-dot { position: absolute; top: 0.25rem; left: calc(1rem - 5px); width: 11px; height: 11px; border-radius: 50%; background: var(--accent); border: 2px solid var(--bg); z-index: 1; }
@media (min-width: 768px) { .timeline-dot { left: calc(100% + 3rem - 5px); } .timeline-item:nth-child(even) .timeline-dot { left: calc(-3rem - 5px); } }
.timeline-year { font-family: var(--font-en); font-weight: 700; font-size: 1.15rem; color: var(--accent); letter-spacing: -0.01em; }
.timeline-title { font-family: var(--font-jp); font-weight: 600; font-size: 1rem; color: var(--fg); margin-top: 0.25rem; }
.timeline-desc { font-family: var(--font-jp); font-size: 0.875rem; color: var(--fg-muted); margin-top: 0.5rem; line-height: 1.75; }

/* PILLARS */
#pillars { padding: 7rem 0; position: relative; overflow: hidden; }
.pillars-bg { position: absolute; inset: 0; pointer-events: none; }
.pillars-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.05; }
.pillars-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, #0A0A0C, rgba(10,10,12,0.88) 50%, #0A0A0C); }
.pillars-grid { display: grid; grid-template-columns: 1fr 1fr; margin-top: 4rem; border: 0.5px solid var(--border); border-radius: var(--radius); overflow: hidden; gap: 0.5px; background: var(--border); }
@media (max-width: 768px) { .pillars-grid { grid-template-columns: 1fr; } }
.pillar-card { background: var(--bg-card); padding: 2.5rem; transition: background var(--transition); }
.pillar-card:hover { background: rgba(255,255,255,0.025); }
.pillar-icon { width: 3rem; height: 3rem; background: var(--accent-10); border-radius: 0.625rem; display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; transition: background var(--transition); }
.pillar-card:hover .pillar-icon { background: var(--accent-20); }
.pillar-icon svg { width: 1.375rem; height: 1.375rem; stroke: var(--accent); fill: none; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.pillar-title { font-family: var(--font-jp); font-weight: 700; font-size: 1.1rem; color: var(--fg); letter-spacing: -0.01em; }
.pillar-subtitle { font-family: var(--font-en); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-top: 0.25rem; margin-bottom: 1rem; }
.pillar-desc { font-family: var(--font-jp); font-size: 0.875rem; color: var(--fg-muted); line-height: 1.8; margin-bottom: 1.25rem; }

/* ECOSYSTEM */
#ecosystem { padding: 7rem 0; position: relative; overflow: hidden; }
.ecosystem-bg { position: absolute; inset: 0; pointer-events: none; }
.ecosystem-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.09; }
.ecosystem-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, #0A0A0C, rgba(10,10,12,0.7) 50%, #0A0A0C); }

.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 4rem;
  background: transparent;   
  gap: 0;                    
}
@media (max-width: 1024px) {
  .platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .platform-grid {
    grid-template-columns: 1fr;
  }
}

.platform-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-card);
  padding: 2rem;
  transition: background var(--transition);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.platform-card-link:nth-child(4n) {
  border-right: none;
}
.platform-grid:last-child .platform-card-link,
.platform-card-link:last-child {
  border-bottom: none;
}
@media (max-width: 1024px) and (min-width: 641px) {
  .platform-card-link:nth-child(2n) {
    border-right: none;
  }
  .platform-card-link:nth-child(2n+1) {
    border-right: 1px solid var(--border);
  }
}
.platform-card-link:hover {
  background: rgba(255,255,255,0.05);
}

#ecosystem .platform-card-link {
  background: #ffffff;
  border-right: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
}
#ecosystem .platform-card-link:hover {
  background: #f5f5f5;
}
#ecosystem .platform-card-link:nth-child(4n) {
  border-right: none;
}
#ecosystem .platform-grid:last-child .platform-card-link,
#ecosystem .platform-card-link:last-child {
  border-bottom: none;
}
@media (max-width: 1024px) and (min-width: 641px) {
  #ecosystem .platform-card-link:nth-child(2n) {
    border-right: none;
  }
  #ecosystem .platform-card-link:nth-child(2n+1) {
    border-right: 1px solid #e2e8f0;
  }
}
#ecosystem .platform-name {
  color: #111111;
}
#ecosystem .platform-subtitle {
  color: #444444;
}
#ecosystem .platform-desc {
  color: #333333;
}

.platform-logo {
  width: 7rem;
  height: 7rem;
  border-radius: 0;
  overflow: hidden;
  margin-bottom: 1.5rem;
  background: #f8f9fa; 
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 768px) {
  .platform-logo {
    width: 5rem;
    height: 5rem;
  }
}
.platform-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
#ecosystem .platform-logo img {
  transform: scale(1.12);
  transform-origin: center center;
  border: none;
}

.platform-name { font-family: var(--font-en); font-weight: 700; font-size: 1.25rem; letter-spacing: -0.01em; margin-bottom: 0.5rem; display: inline-block; }
.platform-subtitle { font-family: var(--font-jp); font-size: 0.8rem; color: var(--accent); margin-top: 0.25rem; margin-bottom: 1rem; }
.platform-desc { font-family: var(--font-jp); font-size: 0.85rem; line-height: 1.75; }
.platform-link-wrapper { transition: opacity var(--transition); }
.platform-link-wrapper:hover { opacity: 0.8; }
.tokyo-card { display: flex; align-items: center; gap: 1.5rem; margin-top: 1rem; background: var(--bg-card); border: 0.5px solid var(--border); border-radius: var(--radius); padding: 1.75rem 2rem; }
@media (max-width: 600px) { .tokyo-card { flex-direction: column; text-align: center; } }
.tokyo-logo { width: 4rem; height: 4rem; border-radius: 0.75rem; overflow: hidden; flex-shrink: 0; }
.tokyo-logo img { width: 100%; height: 100%; object-fit: cover; }
.tokyo-name { font-family: var(--font-en); font-weight: 700; font-size: 1.05rem; color: var(--fg); margin-bottom: 0.25rem; }
.tokyo-desc { font-family: var(--font-jp); font-size: 0.875rem; color: var(--fg-muted); margin-top: 0.375rem; line-height: 1.75; }

#matrix { padding: 7rem 0; background: var(--bg); }
.matrix-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 1px; background: var(--border); border-radius: var(--radius); overflow: hidden; margin-top: 4rem; }
.matrix-card { background: var(--bg-card); padding: 2rem; transition: background var(--transition); }
.matrix-card:hover { background: rgba(255,255,255,0.025); }
.matrix-title { font-family: var(--font-jp); font-weight: 700; font-size: 1.2rem; color: var(--accent); margin-bottom: 1rem; letter-spacing: -0.01em; }
.matrix-desc { font-family: var(--font-jp); font-size: 0.875rem; color: var(--fg-muted); line-height: 1.75; }
@media (max-width: 768px) { .matrix-grid { grid-template-columns: 1fr; } }

#cta { padding: 7rem 0; text-align: center; background: var(--bg); }
.cta-title { font-size: clamp(2rem, 5vw, 2.8rem); font-weight: 800; line-height: 1.2; margin-bottom: 1.5rem; color: var(--fg); }
.cta-desc { font-size: 1rem; color: var(--fg-muted); max-width: 48rem; margin: 0 auto 2rem; line-height: 1.8; }
.cta-button .btn-primary { font-size: 1rem; padding: 1rem 2.5rem; }

.contact-page-section { padding: 7rem 0; }
.contact-page-grid { display: grid; grid-template-columns: 1fr; gap: 3rem; max-width: 800px; margin: 0 auto; }
.contact-info-card { background: var(--bg-card); border: 0.5px solid var(--border); border-radius: var(--radius); padding: 2.5rem; text-align: center; }
.contact-info-card h2 { font-size: 1.8rem; margin-bottom: 1rem; color: var(--fg); }
.contact-details-block { margin: 2rem 0; text-align: left; display: inline-block; }
.contact-details-block p { margin: 0.75rem 0; font-size: 1rem; }
.contact-details-block strong { color: var(--accent); }
.mail-btn { margin-top: 2rem; }

.company-info-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1px; background: var(--border); border-radius: var(--radius); overflow: hidden; margin-top: 3rem; }
.company-info-card { background: var(--bg-card); padding: 2rem; transition: background var(--transition); }
.company-info-card:hover { background: rgba(255,255,255,0.025); }
.company-info-label { font-family: var(--font-en); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.5rem; }
.company-info-value { font-family: var(--font-jp); font-size: 1rem; font-weight: 500; color: var(--fg); line-height: 1.5; }

/* FOOTER */
#footer { border-top: 0.5px solid var(--border); padding: 3rem 0; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
@media (min-width: 640px) { .footer-inner { flex-direction: row; justify-content: space-between; } }
.footer-logo { display: flex; align-items: center; gap: 0.625rem; }
.footer-logo img { width: 1.5rem; height: 1.5rem; object-fit: contain; filter: invert(1); }
.footer-logo span { font-family: var(--font-jp); font-size: 0.875rem; color: var(--fg-muted); }
.footer-copy { font-family: var(--font-en); font-size: 0.75rem; color: var(--fg-muted); }