@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

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

:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --border: #222;
  --text: #e0e0e0;
  --text-muted: #777;
  --accent: #3b82f6;
  --accent-dim: rgba(59, 130, 246, 0.1);
}

body {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Hero */
.hero {
  padding: 100px 0 80px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-dim) 0%, transparent 70%);
  pointer-events: none;
}
.hero h1 {
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  position: relative;
}
.hero .tagline {
  margin-top: 20px;
  font-size: 1.05rem;
  color: var(--text-muted);
  font-weight: 300;
  max-width: 480px;
  line-height: 1.8;
}

/* Sections */
section {
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
}
section:last-of-type {
  border-bottom: none;
}

h2 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}

/* Purpose grid */
.purpose-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.purpose-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  font-size: 0.9rem;
  line-height: 1.7;
  transition: border-color 0.2s;
}
.purpose-card:hover {
  border-color: #333;
}
.purpose-card .num {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 0.08em;
}

/* Company table */
.info-grid {
  display: grid;
  gap: 0;
}
.info-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  font-size: 0.9rem;
}
.info-row:last-child {
  border-bottom: none;
}
.info-label {
  color: var(--text-muted);
  font-weight: 400;
}

/* Koukoku */
.koukoku-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Footer */
footer {
  padding: 32px 0;
  text-align: center;
  font-size: 0.75rem;
  color: #444;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Koukoku page header */
.page-header {
  padding: 48px 0 0;
}
.page-header a {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.page-header a:hover {
  color: var(--text);
}

@media (max-width: 640px) {
  .hero { padding: 64px 0 48px; }
  .hero h1 { font-size: 1.8rem; }
  .purpose-grid { grid-template-columns: 1fr; }
  .info-row { grid-template-columns: 120px 1fr; }
  .container { padding: 0 20px; }
}