/*
 * History Lens — the public pages.
 *
 * Self-contained on purpose: no web fonts, no CDN, no analytics. A privacy
 * policy that calls out to a third party to render itself is not one.
 */

:root {
  --ink: #0b1221;
  --ink-soft: #3d4657;
  --ink-faint: #6b7484;
  --paper: #fbfaf7;
  --paper-raised: #ffffff;
  --rule: #e3e0d8;
  --gold: #8a6d16;
  --gold-bright: #d4af37;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eef1f6;
    --ink-soft: #b9c0cc;
    --ink-faint: #8b93a1;
    --paper: #0b1221;
    --paper-raised: #121a2b;
    --rule: #232c40;
    --gold: #d4af37;
    --gold-bright: #d4af37;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-serif, Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.65;
}

.wrap {
  max-width: 43rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 5rem;
}

/* ---- masthead ---- */

header.masthead {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 2.5rem;
}

.wordmark {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.wordmark span {
  color: var(--gold);
}

nav.langs {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

nav.langs a {
  color: var(--ink-faint);
  text-decoration: none;
  padding: 0.15rem 0.1rem;
}

nav.langs a[aria-current="true"] {
  color: var(--ink);
  border-bottom: 2px solid var(--gold);
}

nav.langs a:hover {
  color: var(--ink);
}

nav.langs .sep {
  color: var(--rule);
  padding: 0 0.35rem;
}

/* ---- type ---- */

h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 1.25rem;
  line-height: 1.3;
  margin: 2.75rem 0 0.6rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}

h3 {
  font-size: 1.02rem;
  margin: 1.75rem 0 0.4rem;
}

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

p {
  margin: 0 0 1rem;
}

ul {
  margin: 0 0 1rem;
  padding-left: 1.15rem;
}

li {
  margin-bottom: 0.5rem;
}

li::marker {
  color: var(--gold);
}

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

a {
  color: var(--gold);
  text-underline-offset: 0.2em;
}

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

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.86em;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

.updated {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 2rem;
}

.lede {
  font-size: 1.1rem;
  color: var(--ink);
}

/* ---- blocks ---- */

.card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 1.25rem 1.4rem;
  margin: 1.5rem 0;
}

.card > :last-child {
  margin-bottom: 0;
}

.card h3 {
  margin-top: 0;
}

.callout {
  border-left: 3px solid var(--gold);
  border-radius: 0 14px 14px 0;
}

/* A plain summary of what a long section actually means. */
.plain {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.95rem;
  color: var(--ink-faint);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.94rem;
}

.scroller {
  overflow-x: auto;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 0.6rem 0.75rem 0.6rem 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-soft);
}

th {
  color: var(--ink);
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---- home ---- */

.hero {
  padding: 1rem 0 2rem;
}

.hero h1 {
  font-size: 2.6rem;
}

.tiles {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  margin: 2rem 0;
}

a.tile {
  display: block;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 1.1rem 1.25rem;
  text-decoration: none;
  color: var(--ink);
}

a.tile:hover {
  border-color: var(--gold);
}

a.tile strong {
  display: block;
  margin-bottom: 0.25rem;
}

a.tile span {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.9rem;
  color: var(--ink-faint);
}

/* ---- footer ---- */

footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.85rem;
  color: var(--ink-faint);
}

footer a {
  color: var(--ink-faint);
}

footer nav {
  margin-bottom: 0.75rem;
}

footer nav a {
  margin-right: 1rem;
  display: inline-block;
}