* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #09090b;
  --bg-raised: #0e0e11;
  --border: #27272a;
  --border-soft: #1c1c1f;
  --fg: #fafafa;
  --fg-muted: #a1a1aa;
  --fg-dim: #52525b;
}

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--fg-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--fg); text-decoration: none; border-bottom: 1px solid var(--border); transition: border-color 0.15s, color 0.15s; }
a:hover { border-bottom-color: var(--fg-dim); }

/* Header */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(9, 9, 11, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border-soft);
}

.topbar-inner {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--fg);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  border: none;
  margin-right: auto;
}

.brand img {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.topbar nav a {
  font-size: 0.8125rem;
  color: var(--fg-dim);
  border: none;
}

.topbar nav a:hover { color: var(--fg-muted); }
.topbar nav a[aria-current="page"] { color: var(--fg); }

/* Page */

main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

h1 {
  font-size: 1.875rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg);
  line-height: 1.25;
}

.effective {
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  color: var(--fg-dim);
}

.lede {
  margin-top: 1.5rem;
  font-size: 1rem;
  line-height: 1.75;
}

h2 {
  margin-top: 3.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg);
  line-height: 1.4;
  scroll-margin-top: 5rem;
}

h3 {
  margin-top: 2rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--fg);
  scroll-margin-top: 5rem;
}

h3 .effective { display: inline; margin: 0; font-weight: 400; }

h2 + p, h3 + p, h2 + ul, h3 + ul, h2 + .table-wrap, h3 + .table-wrap { margin-top: 0.75rem; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8125em;
  color: var(--fg);
  background: var(--bg-raised);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

p { margin-top: 1rem; }

ul, ol { margin-top: 1rem; padding-left: 1.25rem; }
li { margin-top: 0.5rem; }
li::marker { color: var(--fg-dim); }

strong { color: var(--fg); font-weight: 600; }

hr { margin: 3.5rem 0; border: none; border-top: 1px solid var(--border-soft); }

/* Summary card */

.summary {
  margin-top: 2.5rem;
  padding: 1.5rem 1.75rem;
  background: var(--bg-raised);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
}

.summary h2 {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.summary ul {
  margin-top: 1rem;
  padding: 0;
  list-style: none;
}

.summary li {
  position: relative;
  margin-top: 0.875rem;
  padding-left: 1.375rem;
}

.summary li::before {
  content: "";
  position: absolute;
  left: 0.25rem;
  top: 0.7em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--fg-dim);
}

.summary li:first-child { margin-top: 0; }

.summary-footnote {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-soft);
  font-size: 0.8125rem;
  color: var(--fg-dim);
}

/* Table of contents */

.toc {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-raised);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
}

.toc h2 {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.toc ol {
  margin-top: 0.75rem;
  padding-left: 1.25rem;
  font-size: 0.875rem;
}

.toc li { margin-top: 0.25rem; }
.toc a { border: none; color: var(--fg-muted); }
.toc a:hover { color: var(--fg); }

/* Callout */

.note {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--bg-raised);
  border: 1px solid var(--border-soft);
  border-left: 2px solid var(--border);
  border-radius: 8px;
  font-size: 0.875rem;
}

.note p:first-child { margin-top: 0; }

/* Tables */

.table-wrap { margin-top: 1.25rem; overflow-x: auto; }

table {
  width: 100%;
  min-width: 32rem;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

th, td {
  text-align: left;
  vertical-align: top;
  padding: 0.625rem 0.875rem;
  border-bottom: 1px solid var(--border-soft);
}

th {
  color: var(--fg);
  font-weight: 500;
  border-bottom-color: var(--border);
  white-space: nowrap;
}

tbody tr:last-child td { border-bottom: none; }

/* All-caps legal blocks */

.legalese {
  margin-top: 1rem;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

/* Footer */

footer {
  border-top: 1px solid var(--border-soft);
  margin-top: 5rem;
}

.footer-inner {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.8125rem;
  color: var(--fg-dim);
}

.footer-inner a { color: var(--fg-dim); border: none; }
.footer-inner a:hover { color: var(--fg-muted); }
.footer-inner .spacer { margin-left: auto; }

@media (max-width: 640px) {
  main { padding-top: 2.5rem; }
  h1 { font-size: 1.5rem; }
}