/* Static /learn pages: plain HTML that crawlers and AI assistants can read
   without JavaScript. Generated by scripts/geo/build-geo.mjs; this sheet is
   hand-written and shared by every page. */
:root {
  --bg: #07080a; --surface: #0f1115; --line: #1d2027; --text: #eceae4; --muted: #a3a29c;
  --accent: #e8b25c; --accent-ink: #1a1206; --teal: #5cc8c0;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f7f5f0; --surface: #ffffff; --line: #e4e0d6; --text: #16150f; --muted: #5d5b53;
    --accent: #a8721c; --accent-ink: #ffffff; --teal: #1f7f78; color-scheme: light; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-underline-offset: 3px; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); }
a:hover { text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; background: var(--surface); padding: 8px 12px; z-index: 2; }

.top, .nav, main, .foot { max-width: 760px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }
.top { display: flex; align-items: center; justify-content: space-between; padding-top: 22px; padding-bottom: 10px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -0.01em; text-decoration: none; }
.brand img { border-radius: 5px; }
.open { font-size: 14px; color: var(--muted); text-decoration: none; }
.open:hover { color: var(--text); }
.nav { display: flex; gap: 6px; overflow-x: auto; padding-top: 8px; padding-bottom: 8px; scrollbar-width: none;
  border-bottom: 1px solid var(--line); }
.nav::-webkit-scrollbar { display: none; }
.nav a { flex: none; font-size: 14px; color: var(--muted); text-decoration: none; padding: 6px 10px; border-radius: 999px; }
.nav a:hover { color: var(--text); }
.nav a[aria-current="page"] { color: var(--text); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); }

main { padding-top: 48px; padding-bottom: 56px; }
.eyebrow { margin: 0 0 10px; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
h1 { margin: 0 0 18px; font-size: clamp(32px, 6vw, 46px); line-height: 1.08; letter-spacing: -0.025em; font-weight: 650; text-wrap: balance; }
h2 { margin: 48px 0 12px; font-size: 22px; line-height: 1.25; letter-spacing: -0.01em; font-weight: 620; }
h3 { margin: 0 0 4px; font-size: 16px; font-weight: 620; }
p { margin: 0 0 14px; }
.lede { font-size: 19px; color: var(--muted); max-width: 64ch; text-wrap: pretty; }
.note { font-size: 15px; color: var(--muted); margin-top: 10px; }

.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1px; margin: 0;
  background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.facts div { background: var(--surface); padding: 14px 16px; }
.facts dt { font-size: 13px; color: var(--muted); }
.facts dd { margin: 2px 0 0; font-weight: 560; }

.cards, .steps, .index { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.cards { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.cards li { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; }
.cards p, .steps p { margin: 0; color: var(--muted); font-size: 15.5px; }
.steps { counter-reset: step; gap: 0; }
.steps li { counter-increment: step; position: relative; padding: 14px 0 14px 46px; border-bottom: 1px solid var(--line); }
.steps li:last-child { border-bottom: 0; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 14px; width: 28px; height: 28px;
  display: grid; place-items: center; border-radius: 999px; font-size: 13px; font-weight: 600;
  color: var(--accent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 45%, transparent); }
.index li { display: grid; gap: 2px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.index a { font-weight: 600; }
.index span { color: var(--muted); font-size: 15px; }

.table { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 15.5px; }
th, td { text-align: left; padding: 11px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody tr:last-child > * { border-bottom: 0; }
thead th { font-size: 13px; font-weight: 560; color: var(--muted); background: var(--surface); }
tbody th { font-weight: 600; white-space: nowrap; }
td { color: var(--muted); }
@media (max-width: 560px) { th, td { padding: 10px 12px; } tbody th { white-space: normal; } }

.faq { margin: 0; }
.faq div { padding: 18px 0; border-bottom: 1px solid var(--line); }
.faq dt { font-weight: 620; margin-bottom: 6px; }
.faq dd { margin: 0; color: var(--muted); }

.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-top: 48px; }
.button { display: inline-block; background: var(--accent); color: var(--accent-ink); font-weight: 600; text-decoration: none;
  padding: 11px 18px; border-radius: 999px; transition: transform 160ms cubic-bezier(.2,.8,.2,1); }
.button:active { transform: scale(0.97); }
.link { color: var(--muted); }

.foot { padding-top: 22px; padding-bottom: 40px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
.foot p { margin: 0; }
@media (prefers-reduced-motion: reduce) { .button { transition: none; } }