/* === Reset & Base === */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #0b1622;
  --color-surface: #111d2e;
  --color-text: #d8e2ec;
  --color-text-muted: #7a8fa6;
  --color-accent: #2e8be8;
  --color-accent-hover: #4da3f5;
  --color-heading: #3a9ad9;
  --color-border: #1e2d40;
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === Hero === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(170deg, #0b1622 0%, #132840 50%, #0e1f33 100%);
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 80%, rgba(46, 139, 232, 0.08) 0%, transparent 70%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 24px;
}

.hero-content h1 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 4rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: 1.4rem;
  line-height: 1.8;
  margin-bottom: 12px;
}

.hero-sub {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 40px;
}

/* === CTA Button === */
.btn-cta {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 14px 40px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  transition: background 0.15s;
}

.btn-cta:hover {
  background: var(--color-accent-hover);
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-line {
  display: inline-block;
  background: #06C755;
  color: #fff;
  padding: 14px 40px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  transition: background 0.15s;
}

.btn-line:hover {
  background: #05b34c;
}

/* === Values === */
.values {
  padding: 100px 0;
}

.values h2 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 56px;
  color: var(--color-heading);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
}

.value-card {
  background: var(--color-surface);
  padding: 40px 28px;
  text-align: center;
}

.value-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.value-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--color-text);
}

.value-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* === Contribution === */
.contribution {
  padding: 80px 0;
  background: var(--color-surface);
}

.contribution h2 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 32px;
  color: var(--color-heading);
}

.contribution-content {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.contribution-content p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.8;
}

.contribution-placeholder {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 60px 24px;
  margin: 32px 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  opacity: 0.6;
}

/* === Founder === */
.founder {
  padding: 80px 0;
}

.founder h2 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 40px;
  color: var(--color-heading);
}

.founder-card {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  max-width: 600px;
  margin: 0 auto;
}

.founder-avatar {
  width: 96px;
  height: 96px;
  flex-shrink: 0;
  border-radius: 4px;
  overflow: hidden;
}

.founder-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.founder-name {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.founder-role {
  font-size: 0.85rem;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.founder-bio {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* === Company === */
.company {
  padding: 80px 0;
  background: var(--color-surface);
}

.company h2 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 40px;
  color: var(--color-heading);
}

.company-table {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.company-table th {
  color: var(--color-text-muted);
  width: 30%;
  white-space: nowrap;
}

.company-table td {
  color: var(--color-text);
}

/* === CTA Section === */
.cta {
  padding: 100px 0;
  text-align: center;
}

.cta h2 {
  font-size: 1.8rem;
  margin-bottom: 16px;
  color: var(--color-heading);
}

.cta p {
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

/* === Footer === */
.footer {
  padding: 32px 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.footer p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* === Responsive === */
@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.6rem;
  }

  .hero-tagline {
    font-size: 1.1rem;
  }

  .hero-anchor {
    font-size: 16rem;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .values {
    padding: 64px 0;
  }

  .contribution {
    padding: 56px 0;
  }

  .cta {
    padding: 64px 0;
  }

  .founder {
    padding: 56px 0;
  }

  .founder-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .company {
    padding: 56px 0;
  }
}