:root {
  --bg: #f4f0e8;
  --paper: #fffaf1;
  --ink: #1e2430;
  --muted: #5c6470;
  --line: #d8cdbb;
  --accent: #0f6a73;
  --accent-soft: #dceef0;
  --shadow: 0 18px 40px rgba(30, 36, 48, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(circle at top right, rgba(15, 106, 115, 0.08), transparent 32rem),
    linear-gradient(180deg, #efe6d8 0%, var(--bg) 100%);
  color: var(--ink);
  font: 16px/1.6 "Noto Sans JP", "Hiragino Sans", sans-serif;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.hero {
  padding: 28px;
  background: rgba(255, 250, 241, 0.92);
  border: 1px solid rgba(216, 205, 187, 0.9);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-kicker-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.language-switch {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.language-switch a {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(15, 106, 115, 0.2);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  background: rgba(255, 250, 241, 0.85);
}

.language-switch a.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.kicker,
.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.kicker {
  background: var(--accent);
  color: #fff;
}

.status-pill {
  background: rgba(15, 106, 115, 0.12);
  color: var(--accent);
}

.last-updated,
.section-note {
  color: var(--muted);
}

.lead {
  max-width: 44rem;
  font-size: 1.05rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 0.6em;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.03em;
}

h2 {
  margin-top: 2.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 1.4rem;
}

h3 {
  font-size: 1.05rem;
  color: var(--accent);
}

p,
ul,
ol,
table {
  margin: 0 0 1rem;
}

.panel {
  background: rgba(255, 250, 241, 0.86);
  border: 1px solid rgba(216, 205, 187, 0.9);
  border-radius: 20px;
  padding: 20px 22px;
  box-shadow: var(--shadow);
}

.quick-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem 1.25rem;
  padding-left: 1.1rem;
}

.system-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

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

code {
  background: rgba(15, 106, 115, 0.08);
  padding: 0.1rem 0.35rem;
  border-radius: 0.35rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper);
  box-shadow: var(--shadow);
  border-radius: 14px;
  overflow: hidden;
}

th,
td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th {
  background: var(--accent-soft);
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  main {
    padding: 28px 16px 56px;
  }

  .hero,
  .panel {
    padding: 18px 16px;
  }

  .quick-map,
  .system-grid {
    grid-template-columns: 1fr;
  }

  th,
  td {
    padding: 0.7rem 0.8rem;
  }
}