.field-notes {
  --fn-accent: #b5c5ff;
  --fn-rule: #333451;
  --fn-panel: #111129;
}

.fn-nav,
.fn-nav nav {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.fn-nav {
  justify-content: space-between;
  min-height: 64px;
  padding-block: 10px;
}

.fn-nav nav a {
  color: var(--muted);
  font-size: .875rem;
  text-decoration: none;
}

.fn-nav nav a:hover,
.fn-nav nav a[aria-current] {
  color: var(--text);
}

.fn-skip {
  position: fixed;
  inset: 8px auto auto 8px;
  z-index: 10;
  transform: translateY(-150%);
  padding: 8px 14px;
  background: var(--fn-panel);
}

.fn-skip:focus {
  transform: translateY(0);
}

.fn-hero {
  padding: clamp(48px, 8vw, 106px) 0 42px;
  max-width: 820px;
}

.fn-hero h1 {
  font-size: clamp(40px, 6.3vw, 74px);
}

.fn-hero .lead {
  max-width: 60ch;
}

.fn-library {
  padding-bottom: 86px;
}

.fn-library > h2 {
  margin: 0 0 20px;
  font-size: 1.5rem;
}

.fn-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.fn-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--fn-rule);
  border-radius: 14px;
  background: var(--fn-panel);
  text-decoration: none;
}

.fn-card:hover {
  border-color: var(--fn-accent);
}

.fn-topic,
.fn-read,
.fn-back,
.fn-related a,
.fn-layout article a {
  color: var(--fn-accent);
}

.fn-topic {
  font-size: .85rem;
  font-weight: 700;
}

.fn-card h3 {
  margin: 12px 0;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
}

.fn-card p {
  color: var(--muted);
  margin: 0 0 24px;
}

.fn-read {
  margin-top: auto;
  font-size: .9rem;
  font-weight: 700;
}

.fn-article-hero {
  padding-bottom: 26px;
}

.fn-article-hero h1 {
  font-size: clamp(34px, 5.7vw, 62px);
}

.fn-article-hero .meta {
  color: var(--muted);
}

.fn-back {
  display: inline-block;
  margin-bottom: 16px;
}

.fn-layout {
  grid-template-columns: minmax(0, 740px) minmax(180px, 235px);
  gap: clamp(26px, 6vw, 72px);
}

.fn-layout article {
  min-width: 0;
}

.fn-layout article h2 {
  scroll-margin-top: 96px;
}

.fn-layout article section:first-child h2 {
  margin-top: 12px;
}

.fn-layout li + li {
  margin-top: 10px;
}

.fn-layout pre {
  max-width: 100%;
  overflow-x: auto;
  padding: clamp(14px, 3vw, 24px);
  border: 1px solid var(--fn-rule);
  border-radius: 12px;
  background: #0b0b20;
  color: #e1e8ff;
  font: .875rem/1.65 ui-monospace, SFMono-Regular, Consolas, monospace;
  tab-size: 4;
}

.fn-layout :not(pre) > code {
  overflow-wrap: anywhere;
}

.fn-steps {
  margin: 0;
}

.fn-steps > div {
  padding: 14px 0;
  border-bottom: 1px solid var(--fn-rule);
}

.fn-steps dt {
  font-weight: 700;
}

.fn-steps dd {
  color: var(--muted);
  margin: 2px 0 0;
}

.fn-related {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--fn-rule);
}

.field-notes :focus-visible {
  outline: 2px solid var(--fn-accent);
  outline-offset: 4px;
}

@media (max-width: 800px) {
  .fn-layout,
  .fn-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .field-notes,
  html:has(.field-notes) {
    scroll-behavior: auto;
  }
}