:root {
  --bg: #f5f3ec;
  --ink: #242922;
  --muted: #5d6459;
  --card: #ffffff;
  --line: #deddd3;
  --accent: #d9542b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #191c18;
    --ink: #f1efe7;
    --muted: #a9afa4;
    --card: #232721;
    --line: #34392f;
    --accent: #f07a52;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-underline-offset: 3px; }

.wrap {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

.header { padding-top: 28px; padding-bottom: 12px; }

.brand {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.hero { padding: 56px 0 40px; }

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(1.9rem, 6.5vw, 3rem);
  line-height: 1.3;
  letter-spacing: 0.01em;
}

.lead { margin: 20px 0 0; font-size: 1.05rem; color: var(--muted); }

.card {
  margin-bottom: 16px;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.card h2 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0; }
.card a { overflow-wrap: anywhere; font-weight: 600; }

.badge {
  display: inline-block;
  margin-top: 14px !important;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.85rem;
  font-weight: 700;
}

.doc { padding-top: 32px; padding-bottom: 24px; }
.doc h1 { font-size: 1.7rem; margin-bottom: 20px; }
.doc h2 { font-size: 1.1rem; margin-top: 32px; }
.doc a { overflow-wrap: anywhere; }
.muted { color: var(--muted); font-size: 0.9rem; }

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  padding-top: 40px;
  padding-bottom: 40px;
  font-size: 0.9rem;
  color: var(--muted);
}