/* Crosstalk front page. The relay view's colour tokens, system fonts, no framework, no script. */
:root { --bg:#fafafa; --fg:#1a1a1a; --mute:#6b6b6b; --line:#e2e2e2; --card:#fff; --accent:#2c5bd1; }
@media (prefers-color-scheme: dark) { :root { --bg:#111; --fg:#eee; --mute:#9a9a9a; --line:#2a2a2a; --card:#181818; --accent:#7aa2ff; } }
* { box-sizing: border-box; }
html { color-scheme: light dark; }
body { margin: 0; font: 17px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--fg); display: flex; flex-direction: column; min-height: 100vh; }
main { flex: 1; width: 100%; max-width: 840px; margin: 0 auto; padding: 56px 24px 32px; }
h1 { font-size: 40px; line-height: 1.1; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 20px; margin: 40px 0 8px; }
p { margin: 10px 0; }
.line { font-size: 22px; color: var(--fg); margin: 0 0 20px; }
.mute { color: var(--mute); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 20px 0; }
.button { display: inline-block; padding: 9px 16px; border: 1px solid var(--accent); border-radius: 8px; color: var(--accent); text-decoration: none; font-weight: 600; }
.button:hover { background: var(--card); }
a { color: var(--accent); }
code { font: 15px ui-monospace, Menlo, monospace; background: var(--card); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; overflow-wrap: break-word; }
footer { border-top: 1px solid var(--line); color: var(--mute); font-size: 14px; }
footer p { max-width: 840px; margin: 0 auto; padding: 16px 24px; }
@media (max-width: 480px) { h1 { font-size: 32px; } .line { font-size: 19px; } main { padding-top: 40px; } }

/* Full page (#227) */
.top { display: flex; align-items: center; gap: 16px; padding: 14px 24px; border-bottom: 1px solid var(--line); background: var(--card); position: sticky; top: 0; }
.brand { display: inline-flex; align-items: center; gap: 8px; color: var(--fg); text-decoration: none; font: 600 19px/1 "Space Grotesk", "Helvetica Neue", Arial, sans-serif; letter-spacing: -0.02em; }
/* The mark (brand/): a rounded chevron in ink and an underscore in the accent. */
.mark { width: 26px; height: 26px; fill: none; stroke-width: 14; stroke-linecap: round; stroke-linejoin: round; }
.mark .chev { stroke: var(--fg); } .mark .under { stroke: var(--accent); }
.top nav { margin-left: auto; display: flex; gap: 16px; align-items: center; }
.top nav a { color: var(--mute); text-decoration: none; font-size: 15px; }
.top nav a:hover { color: var(--fg); }
.button.small { padding: 5px 12px; font-size: 14px; color: var(--accent); }
.button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.button.primary:hover { filter: brightness(1.08); background: var(--accent); }
.hero { padding-top: 24px; }
.hero h1 { font-size: 44px; max-width: 16em; }
.lead { font-size: 18px; max-width: 40em; }
section { margin-bottom: 8px; }
h3 { font-size: 17px; margin: 10px 0 6px; }
.parts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 12px; }
.part { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.part p { font-size: 15px; margin: 0; }
.part svg { width: 40px; height: 40px; fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.not { padding-left: 20px; margin: 8px 0; }
.not li { margin: 6px 0; }
.steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 12px; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.step h3 { margin-top: 0; }
.step p { font-size: 15px; }
pre { font: 14px ui-monospace, Menlo, monospace; background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; margin: 10px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.note { background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 8px; padding: 12px 14px; margin-top: 16px; font-size: 15px; }
/* Download (#387): one row per platform. The rows come from /releases/downloads.html, which the
   publish script writes and Caddy includes at serve time; the page has no script to fetch them. */
.downloads-wrap { overflow-x: auto; margin-top: 12px; }
.downloads { width: 100%; border-collapse: collapse; font-size: 15px; background: var(--card); border: 1px solid var(--line); }
.downloads th, .downloads td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; white-space: nowrap; }
.downloads thead th { color: var(--mute); font-size: 13px; font-weight: 500; }
.downloads tbody tr:last-child th, .downloads tbody tr:last-child td { border-bottom: 0; }
.downloads tbody th { font-weight: 600; }
.downloads tbody th .mute { font-weight: 400; margin-left: 4px; }
.downloads code { font-size: 13px; background: none; border: 0; padding: 0; }
.oneline { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-top: 16px; }
.oneline h3 { margin-top: 0; }
.oneline p { font-size: 15px; margin-bottom: 0; }
/* Pricing (#292): three plan cards. */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 16px; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; display: flex; flex-direction: column; }
.plan.featured { border-color: var(--accent); }
.plan h3 { margin: 0; }
.plan .price { font-size: 28px; font-weight: 600; margin: 6px 0 4px; }
.plan .per { font-size: 14px; font-weight: 400; color: var(--mute); }
.plan ul { padding-left: 18px; margin: 8px 0 12px; font-size: 15px; flex: 1; }
.plan li { margin: 5px 0; }
.plan p:last-child { margin: 0; }
.foot { max-width: 840px; margin: 0 auto; padding: 20px 24px; }
.foot p { padding: 0; margin: 8px 0; }
@media (max-width: 720px) { .parts, .steps, .plans { grid-template-columns: 1fr; } .hero h1 { font-size: 34px; } .top nav a:not(.button) { display: none; } }

/* Docs (#271): a left nav and a prose column, no script. Served at /docs. */
.docs { display: grid; grid-template-columns: 210px 1fr; gap: 32px; max-width: 960px; margin: 0 auto; padding: 32px 24px 48px; }
.docs-nav { font-size: 15px; }
.docs-nav .group { color: var(--mute); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; margin: 16px 0 6px; }
.docs-nav a { display: block; color: var(--mute); text-decoration: none; padding: 3px 0; }
.docs-nav a:hover { color: var(--fg); }
.docs-nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }
.docs-main { min-width: 0; }
.docs-main h1 { font-size: 30px; margin: 0 0 6px; }
.docs-main h2 { font-size: 20px; margin: 32px 0 8px; padding-top: 8px; border-top: 1px solid var(--line); }
.docs-main h3 { font-size: 16px; margin: 18px 0 4px; }
.docs-main pre { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; overflow-x: auto; font: 14px/1.5 ui-monospace, Menlo, monospace; }
.docs-main img { max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: 8px; }
.docs-main pre code { background: none; border: none; padding: 0; font-size: 14px; }
.docs-main table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
.docs-main th, .docs-main td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.docs-main th { color: var(--mute); font-size: 13px; }
.docs-main .lead { font-size: 18px; color: var(--mute); margin: 0 0 8px; }
.docs-main ol, .docs-main ul { padding-left: 22px; } .docs-main li { margin: 6px 0; }
.next { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); }
@media (max-width: 720px) { .docs { grid-template-columns: 1fr; gap: 12px; } .docs-nav { border-bottom: 1px solid var(--line); padding-bottom: 8px; } }
.docs-main td { overflow-wrap: anywhere; }
.docs-main td code { overflow-wrap: anywhere; }
/* Legal pages (#285): rendered by scripts/render-legal.py from docs/legal/. */
.legal { padding-top: 40px; }
.legal h1 { font-size: 34px; letter-spacing: -0.02em; }
.legal > p:first-of-type { color: var(--mute); }
.legal mark.todo { background: #fde68a; color: #1a1a1a; border-radius: 3px; padding: 0 4px; }
.foot a { color: var(--mute); }