:root {
  color-scheme: light;
  --ink: #18221f;
  --muted: #54635d;
  --line: #dce7e1;
  --page: #f8fbf8;
  --panel: #ffffff;
  --mint: #d9f4e5;
  --sky: #dbeafe;
  --peach: #ffe3cf;
  --leaf: #2f7d5b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: #25634b;
}

.site-header,
.site-footer {
  border-color: var(--line);
  border-style: solid;
  border-width: 0 0 1px;
  background: rgba(255, 255, 255, 0.86);
}

.site-footer {
  border-width: 1px 0 0;
}

.shell {
  width: min(100% - 32px, 880px);
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 760;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 12px;
  background: var(--mint);
  color: var(--leaf);
  font-weight: 800;
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

.document {
  padding: 56px 0 64px;
}

.eyebrow {
  width: fit-content;
  margin: 0 0 18px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--sky);
  color: #24517a;
  font-size: 0.82rem;
  font-weight: 700;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(2.1rem, 5vw, 3.8rem);
  line-height: 1;
  letter-spacing: 0;
}

.updated {
  margin: 0 0 34px;
  color: var(--muted);
}

.panel {
  margin: 26px 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.panel.notice {
  border-color: #f4caa7;
  background: var(--peach);
}

h2 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  line-height: 1.2;
  letter-spacing: 0;
}

p,
ul,
ol {
  color: var(--muted);
}

li + li {
  margin-top: 8px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border: 1px solid #9cc9b5;
  border-radius: 8px;
  background: #e9f8ef;
  color: #235a43;
  font-weight: 720;
  text-decoration: none;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 640px) {
  .nav,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .document {
    padding-top: 40px;
  }

  .panel {
    padding: 20px;
  }
}