/* Layout: one reading column (72ch) with full-bleed slate bands for the "two views" diagram; one static page per language. */
:root {
  --bg: #f2f4f7; --surface: #ffffff; --fg: #141a22; --muted: #5b6878; --line: #d3dae2;
  --accent: #0b6b8a; --accent-ink: #ffffff; --band: #1a222c; --band-fg: #dfe6ee; --band-muted: #8d9bab;
  --ok: #2f7d4f; --warn: #9a6a12;
  --display: "Noto Serif SC", Georgia, serif; --body: "Noto Sans SC", -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f141a; --surface: #161d25; --fg: #e4eaf0; --muted: #94a1af; --line: #28323d;
    --accent: #5cc0dc; --accent-ink: #0f141a; --band: #0a0e12; --band-fg: #dfe6ee; --band-muted: #8d9bab;
    --ok: #6fc48f; --warn: #d9a84a; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f141a; --surface: #161d25; --fg: #e4eaf0; --muted: #94a1af; --line: #28323d;
  --accent: #5cc0dc; --accent-ink: #0f141a; --band: #0a0e12; --band-fg: #dfe6ee; --band-muted: #8d9bab;
  --ok: #6fc48f; --warn: #d9a84a; color-scheme: dark;
}
* { box-sizing: border-box; }
html { padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px); }
body { background: var(--bg); color: var(--fg); font-family: var(--body); font-size: 16px; line-height: 1.7; margin: 0; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
code { font-family: var(--mono); font-size: .92em; }
.wrap { max-width: 72ch; margin: 0 auto; padding-inline: 20px; }
header.top { padding-block: 20px 0; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.brand { font-family: var(--display); font-weight: 700; font-size: 20px; letter-spacing: .02em; color: var(--fg); text-decoration: none; }
.status { font-family: var(--mono); font-size: 12px; color: var(--muted); letter-spacing: .04em; text-transform: uppercase; }
.status::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--warn); margin-right: 8px; vertical-align: 1px; }
nav.lang { display: flex; flex-wrap: wrap; gap: 4px 14px; font-family: var(--mono); font-size: 12px; margin-top: 10px; }
nav.lang a { color: var(--muted); text-decoration: none; }
nav.lang a[aria-current="page"] { color: var(--accent); border-bottom: 1px solid var(--accent); }
nav.lang a:hover { color: var(--fg); }
.top .main { display: flex; gap: 16px; font-family: var(--mono); font-size: 13px; }
.top .main a { color: var(--fg); text-decoration: none; border-bottom: 1px solid var(--line); }
.top .main a:hover { border-bottom-color: var(--accent); }
.hero { padding-block: 48px 40px; }
h1 { font-family: var(--display); font-weight: 700; font-size: clamp(28px, 5vw, 42px); line-height: 1.22; margin: 0 0 20px; text-wrap: balance; }
.lede { font-size: 18px; color: var(--muted); max-width: 60ch; margin: 0 0 24px; }
.lede strong { color: var(--fg); font-weight: 500; }
.sub { font-family: var(--mono); font-size: 13px; color: var(--muted); }
h2 { font-family: var(--display); font-weight: 600; font-size: 24px; line-height: 1.3; margin: 0 0 16px; text-wrap: balance; }
h3 { font-size: 16px; font-weight: 700; margin: 0 0 8px; }
p { margin: 0 0 14px; }
section { padding-block: 40px; border-top: 1px solid var(--line); }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.band { background: var(--band); color: var(--band-fg); padding-block: 36px; }
.band .wrap { max-width: 96ch; }
.views { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.view { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12); border-radius: 6px; padding: 16px 18px; min-width: 0; }
.view h3 { color: var(--band-fg); font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; font-weight: 500; margin-bottom: 12px; }
.view pre { margin: 0; font-family: var(--mono); font-size: 13px; line-height: 1.7; white-space: pre; overflow-x: auto; color: var(--band-fg); }
.view .dim { color: var(--band-muted); }
.view .hi { color: #9ad8ea; }
.caption { color: var(--band-muted); font-size: 14px; margin-top: 16px; max-width: 70ch; }
.ideas { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 28px; }
.idea { min-width: 0; }
.idea h3 { font-family: var(--display); font-weight: 600; font-size: 17px; }
.idea p { color: var(--muted); font-size: 15px; margin: 0; }
.chain { font-family: var(--mono); font-size: 13px; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 14px 16px; overflow-x: auto; white-space: pre; line-height: 1.8; margin: 16px 0; }
.chain .t { color: var(--muted); }
.chain .c { color: var(--accent); }
.three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.three > div { min-width: 0; }
.three p { color: var(--muted); font-size: 15px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 700; font-size: 13px; letter-spacing: .04em; color: var(--muted); }
td.n { font-family: var(--mono); font-size: 14px; white-space: nowrap; }
.tbl { overflow-x: auto; }
.pill { display: inline-block; font-family: var(--mono); font-size: 12px; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--ok); color: var(--ok); }
pre.cmd { font-family: var(--mono); font-size: 13.5px; line-height: 1.8; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 14px 16px; overflow-x: auto; margin: 0 0 14px; }
ul { padding-left: 1.2em; margin: 0 0 14px; }
li { margin-bottom: 6px; }
.verdict { background: var(--surface); border-left: 3px solid var(--accent); padding: 16px 20px; border-radius: 0 6px 6px 0; }
.verdict p:last-child { margin: 0; }
footer { padding-block: 32px 48px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
@media (max-width: 720px) {
  .views, .ideas, .three { grid-template-columns: 1fr; }
  .hero { padding-block: 32px 28px; }
}