:root {
  --paper: #f8f6ef;
  --card: #fffdf8;
  --ink: #27332b;
  --muted: #657168;
  --sage: #5f936f;
  --line: #dce5db;
  --warning: #a46d35;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body { margin: 0; color: var(--ink); background: radial-gradient(circle at 85% 0%, #e7f0e5 0, transparent 32rem), var(--paper); font: 16px/1.72 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--sage); }
.site-header { max-width: 920px; margin: 0 auto; padding: 48px 24px 22px; display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.brand { font-size: 1.45rem; font-weight: 850; letter-spacing: -.03em; }
.brand span { display: block; color: var(--muted); font-size: .82rem; font-weight: 600; letter-spacing: .02em; }
nav { display: flex; flex-wrap: wrap; gap: 8px; }
nav a { padding: 7px 12px; border-radius: 999px; text-decoration: none; font-weight: 750; }
nav a[aria-current="page"] { color: var(--ink); background: #e1eee2; }
[hidden] { display: none !important; }
.language-picker { display: inline-flex; align-items: center; gap: 9px; padding: 3px 6px 3px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); }
.language-picker-label { color: var(--muted); font-size: .75rem; font-weight: 700; white-space: nowrap; }
nav select { appearance: none; min-height: 38px; padding: 6px 32px 6px 12px; border: 0; border-radius: 999px; background-color: #eaf2e9; background-image: linear-gradient(45deg, transparent 50%, #4d7659 50%), linear-gradient(135deg, #4d7659 50%, transparent 50%); background-position: calc(100% - 17px) 50%, calc(100% - 12px) 50%; background-size: 5px 5px; background-repeat: no-repeat; color: var(--ink); font: inherit; font-size: .86rem; font-weight: 700; cursor: pointer; }
nav select:focus-visible { outline: 3px solid var(--sage); outline-offset: 3px; }
main { max-width: 920px; margin: 0 auto; padding: 28px 24px 80px; }
.hero { padding: 38px 0 26px; border-bottom: 1px solid var(--line); }
h1 { max-width: 720px; margin: 0 0 10px; font-size: clamp(2rem, 6vw, 3.5rem); line-height: 1.08; letter-spacing: -.055em; }
.lede { max-width: 680px; margin: 0; color: var(--muted); font-size: 1.08rem; }
.meta { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 18px; color: var(--muted); font-size: .86rem; }
.notice { margin: 26px 0; padding: 16px 18px; border: 1px solid #e8cfaa; border-radius: 16px; background: #fff7e8; color: #684a2d; }
.notice strong { display: block; margin-bottom: 2px; }
.toc { margin: 28px 0; padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); }
.toc ul { columns: 2; margin: 10px 0 0; padding-left: 20px; }
section { margin: 38px 0; }
h2 { margin: 0 0 12px; font-size: 1.45rem; letter-spacing: -.025em; }
h3 { margin: 22px 0 6px; font-size: 1rem; }
li { margin: 7px 0; }
.data-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.data-card { padding: 16px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.data-card b { display: block; margin-bottom: 3px; }
footer { max-width: 920px; margin: 0 auto; padding: 24px; color: var(--muted); border-top: 1px solid var(--line); font-size: .86rem; }
@media (max-width: 640px) { .site-header { display: block; padding-top: 28px; } nav { margin-top: 18px; } main { padding-top: 10px; } .toc ul { columns: 1; } .data-grid { grid-template-columns: 1fr; } }

/* Long external references remain readable on narrow screens. */
.legal-url { overflow-wrap: anywhere; word-break: break-word; }