*, *::before, *::after { box-sizing: border-box; }

:root {
  --ink: #16181d;
  --ink-soft: #4b5160;
  --ink-faint: #9aa0ad;
  --accent: #4f46e5;
  --accent-soft: #eef0fe;
  --bg: #ffffff;
  --bg-alt: #f7f8fa;
  --line: #e6e8ec;
  --radius: 14px;
}

html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

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

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
}

.global-nav {
  display: flex;
  gap: 8px;
}

.global-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
}

.global-nav a:hover { background: var(--bg-alt); color: var(--ink); }
.global-nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

/* ---------- Hero ---------- */
.hero {
  padding: 88px 0 72px;
  text-align: center;
}

.hero .eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(1.7rem, 4.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin: 0 0 20px;
}

.hero .lead {
  color: var(--ink-soft);
  max-width: 600px;
  margin: 0 auto;
  font-size: 0.98rem;
}

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section.alt { background: var(--bg-alt); }

.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  margin: 0 0 10px;
}

.section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 24px;
}

.section p { color: var(--ink-soft); }

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.card .card-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 3px 12px;
  margin-bottom: 14px;
}

.card h3 {
  font-size: 1.05rem;
  margin: 0 0 10px;
  letter-spacing: 0.03em;
}

.card p {
  font-size: 0.88rem;
  margin: 0;
}

/* ---------- Feature list ---------- */
.feature-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.feature-block {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
}

.feature-block h3 {
  font-size: 1.1rem;
  margin: 0 0 4px;
}

.feature-block .sub {
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin: 0 0 18px;
}

.feature-block ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-block li {
  font-size: 0.9rem;
  color: var(--ink-soft);
  padding: 9px 0 9px 26px;
  border-top: 1px solid var(--line);
  position: relative;
}

.feature-block li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 1.05em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- News ---------- */
.news-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  display: flex;
  gap: 24px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  flex-wrap: wrap;
}

.news-list time {
  color: var(--ink-faint);
  font-size: 0.85rem;
  flex-shrink: 0;
  min-width: 7em;
}

.news-list .news-body { color: var(--ink-soft); }
.news-list .news-body strong { color: var(--ink); font-weight: 600; }

/* ---------- Company table ---------- */
.company-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: 0.92rem;
}

.company-table th,
.company-table td {
  text-align: left;
  padding: 16px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.company-table th {
  width: 9em;
  color: var(--ink-faint);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

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

/* ---------- Prose (privacy etc.) ---------- */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.15rem; margin: 44px 0 12px; }
.prose p, .prose li { font-size: 0.92rem; color: var(--ink-soft); }
.prose ul { padding-left: 1.4em; }
.prose .updated { font-size: 0.8rem; color: var(--ink-faint); }

/* ---------- Contact ---------- */
.contact-box {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  margin-top: 8px;
}

.contact-box p { margin: 0 0 16px; font-size: 0.92rem; }

.contact-box .mail {
  display: inline-block;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 12px 30px;
  border-radius: 999px;
  transition: opacity 0.15s ease;
}

.btn:hover { opacity: 0.85; }

.btn.ghost {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

/* ---------- Page header (sub pages) ---------- */
.page-header {
  padding: 64px 0 8px;
}

.page-header h1 {
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 8px 0 0;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 72px;
  padding: 40px 0 48px;
  font-size: 0.82rem;
  color: var(--ink-faint);
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--ink-faint);
  text-decoration: none;
}

.footer-nav a:hover { color: var(--ink); }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .site-header .wrap { height: auto; flex-direction: column; gap: 4px; padding-top: 12px; padding-bottom: 12px; }
  .global-nav { flex-wrap: wrap; justify-content: center; }
  .hero { padding: 56px 0 48px; }
  .section { padding: 48px 0; }
  .news-list li { gap: 6px; flex-direction: column; }
  .company-table th { width: 7em; }
}