:root {
  color-scheme: light dark;
  --page: #f6f8fb;
  --surface: #ffffff;
  --text: #111827;
  --muted: #5f6b7a;
  --line: #dce2ea;
  --accent: #1268c4;
  --table-head: #eef3f8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0d131c;
    --surface: #141c27;
    --text: #edf2f7;
    --muted: #a9b4c2;
    --line: #2d3948;
    --accent: #72b7ff;
    --table-head: #1d2937;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(100% - 32px, 800px);
  margin: 0 auto;
  padding: 24px 0 80px;
}

.legal-nav,
.legal-footer {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.legal-nav {
  justify-content: space-between;
  min-height: 52px;
  margin-bottom: 28px;
}

.brand {
  color: var(--text);
  font-size: 18px;
  font-weight: 750;
}

.legal-document {
  padding: 36px clamp(20px, 5vw, 56px) 48px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

h1,
h2,
h3 {
  line-height: 1.4;
  letter-spacing: 0;
}

h1 { margin: 0 0 16px; font-size: clamp(26px, 5vw, 36px); }
h2 { margin: 44px 0 14px; padding-bottom: 9px; border-bottom: 1px solid var(--line); font-size: 21px; }
h3 { margin: 28px 0 10px; font-size: 17px; }
p { margin: 0 0 14px; }
ul, ol { margin: 10px 0 18px; padding-left: 24px; }
li { margin: 5px 0; }

table {
  display: block;
  width: 100%;
  margin: 18px 0 24px;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  min-width: 150px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th { background: var(--table-head); font-weight: 700; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { overflow-wrap: anywhere; }
strong { font-weight: 700; }

.legal-footer {
  margin-top: 28px;
  padding: 24px 4px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

@media (max-width: 560px) {
  .container { width: min(100% - 20px, 800px); padding-top: 12px; }
  .legal-document { padding: 26px 18px 36px; }
  .legal-nav { margin-bottom: 12px; }
}