:root {
  --bg: #f7f4ef;
  --bg-accent: #efe8dc;
  --surface: #ffffff;
  --ink: #1c1a17;
  --ink-muted: #5c574f;
  --line: #d9d0c3;
  --brand: #0f4c5c;
  --brand-soft: #e6f1f3;
  --focus: #c1492a;
  --max: 44rem;
  --pad: clamp(1.25rem, 4vw, 2rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", Candara, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #e8f3f5 0%, transparent 55%),
    radial-gradient(900px 420px at 100% 0%, #f3ebe0 0%, transparent 50%),
    var(--bg);
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--brand);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--focus);
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.wrap {
  width: min(100% - 2 * var(--pad), 72rem);
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
}

.brand {
  font-family: Palatino, "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
}

.brand span {
  color: var(--brand);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}

.nav a {
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 0.98rem;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

main {
  padding-block: clamp(2rem, 5vw, 3.5rem) 4rem;
}

.hero {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.hero h1 {
  font-family: Palatino, "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.lede {
  font-size: 1.15rem;
  color: var(--ink-muted);
  margin: 0;
}

.grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .grid.two {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  padding: 1.35rem 1.4rem;
  box-shadow: 0 1px 0 rgba(28, 26, 23, 0.03);
}

.card h2 {
  font-family: Palatino, "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: 1.35rem;
  margin: 0 0 0.75rem;
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

.notice {
  background: var(--brand-soft);
  border: 1px solid #bfd5da;
  border-radius: 0.75rem;
  padding: 1rem 1.15rem;
  margin: 1.5rem 0 2rem;
  color: var(--ink);
}

.notice strong {
  color: var(--brand);
}

.marker {
  display: inline-block;
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, monospace;
  font-size: 0.9em;
  background: #fff3e8;
  color: #8a2f12;
  border: 1px solid #efc2ad;
  border-radius: 0.35rem;
  padding: 0.1rem 0.4rem;
}

.legal h1 {
  font-family: Palatino, "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

.legal .meta {
  color: var(--ink-muted);
  margin: 0 0 2rem;
  font-size: 0.98rem;
}

.legal section {
  margin-bottom: 2rem;
  max-width: var(--max);
}

.legal h2 {
  font-family: Palatino, "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: 1.3rem;
  margin: 0 0 0.7rem;
  scroll-margin-top: 5rem;
}

.legal p,
.legal li {
  color: var(--ink);
}

.legal ul {
  padding-left: 1.2rem;
}

.legal li + li {
  margin-top: 0.35rem;
}

.toc {
  background: var(--bg-accent);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 1rem 1.2rem;
  margin: 0 0 2rem;
  max-width: var(--max);
}

.toc h2 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
  font-family: inherit;
}

.toc ol {
  margin: 0;
  padding-left: 1.2rem;
}

.toc a {
  text-decoration: none;
}

.toc a:hover {
  text-decoration: underline;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 1.5rem 0 2rem;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-start;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

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

.footer-nav a:hover {
  color: var(--brand);
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.5rem 0.75rem;
  z-index: 100;
}

.skip-link:focus {
  left: var(--pad);
  top: 0.5rem;
}