:root {
  --ember: #F5750D; --ember-hi: #FFC24A; --ember-lo: #C43F00;
  --bg: #F4F3F1; --panel: #FFFFFF; --line: #D9D9D9; --ink: #111111; --muted: #5F5E5A;
  --live: #0E7A4A; --review: #8A5A00; --planned: #5B6470;
  --code-bg: #14181D; --code-ink: #E8ECF1;
  --ink-on-ember: #14100B; --bubble-user: #EFEDE9; --bubble-rail: #FFFFFF;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); }
a { color: var(--ember-lo); }
a:hover { color: var(--ember); }
code, pre, .console { font-family: var(--mono); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

header.top { position: sticky; top: 0; z-index: 10; background: rgba(244,243,241,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; gap: 16px; min-height: 56px; }
header.top .brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 600; }
header.top .brand svg { width: 28px; height: 28px; }
header.top nav { margin-left: auto; display: flex; gap: 14px; overflow-x: auto; white-space: nowrap; }
header.top nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
header.top nav a:hover { color: var(--ink); }

.hero { padding: 64px 0 40px; border-bottom: 1px solid var(--line); }
.hero h1 { font-size: clamp(30px, 5vw, 52px); line-height: 1.1; margin: 0 0 16px; }
.hero h1 em { color: var(--ember-lo); font-style: normal; }
.hero .lead { color: var(--muted); font-size: 18px; max-width: 60ch; }
.hero .def, .hero .audience { color: var(--muted); font-size: 15px; max-width: 62ch; margin: 6px 0; }
.hero .audience { margin-top: 14px; }
.hero .boundary { margin-top: 16px; max-width: 70ch; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0; }
.btn { display: inline-block; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--ember); color: var(--ink); text-decoration: none; }
.btn.primary { background: var(--ember); color: var(--ink-on-ember); font-weight: 600; }
.btn:hover { border-color: var(--ember-hi); color: var(--ink); }

.quick { margin-top: 28px; }
.quick .cmd { margin-top: 18px; padding: 10px; background: var(--code-bg); border-radius: 6px; color: var(--code-ink); overflow-x: auto; font-family: var(--mono); font-size: 13px; }
.quick .cmd:first-child { margin-top: 0; }
.quick .cmd + .caption { color: var(--muted); font-size: 13px; margin: 6px 0 0; }
.quick .console { margin-top: 10px; }

section.block { padding: 48px 0; border-bottom: 1px solid var(--line); }
section.block .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
section.block .num { color: var(--ember-lo); font-family: var(--mono); font-size: 14px; letter-spacing: .1em; }
section.block h2 { font-size: 28px; margin: 6px 0 12px; }
section.block p { color: var(--muted); max-width: 56ch; }
section.block .limit { font-size: 14px; border-left: 3px solid var(--line); padding-left: 12px; }

.stamp { display: inline-block; font: 600 12px/1 var(--mono); letter-spacing: .08em; padding: 5px 8px; border-radius: 4px; border: 1px solid currentColor; margin-left: 10px; vertical-align: middle; }
.stamp-live { color: var(--live); }
.stamp-in-review { color: var(--review); }
.stamp-planned { color: var(--planned); }

.console { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; font-size: 14px; overflow: auto; box-shadow: 0 1px 2px rgba(17,17,17,.06); }
.console .row { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px dashed var(--line); }
.console .row:last-child { border-bottom: 0; }
.console .k { color: var(--muted); }
.console .v { text-align: right; word-break: break-all; }
.console pre { margin: 12px 0 0; white-space: pre-wrap; color: var(--ember-lo); }
.console .cmd { margin-top: 12px; padding: 10px; background: var(--code-bg); border-radius: 6px; color: var(--code-ink); overflow-x: auto; }

table.lanes { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 13px; }
table.lanes th, table.lanes td { border-bottom: 1px solid var(--line); text-align: left; padding: 6px 8px; }
table.lanes th { color: var(--muted); font-weight: 600; }
table.lanes tr.live td { color: var(--live); }
table.lanes tr.off td { color: var(--muted); }

.steps { list-style: none; margin: 20px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.steps li { border: 1px solid var(--line); border-radius: 10px; padding: 14px; background: var(--panel); }
.steps .n { display: inline-block; color: var(--ember-lo); font: 700 13px var(--mono); }
.steps h3 { font-size: 15px; margin: 6px 0 4px; }
.steps p { color: var(--muted); font-size: 13px; margin: 0; }

.status-list { list-style: none; margin: 16px 0 0; padding: 0; }
.status-list li { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.status-list li:last-child { border-bottom: 0; }
.status-list .name { flex: 1 1 220px; font-weight: 600; }
.status-list .clause { flex: 2 1 320px; color: var(--muted); font-size: 14px; }

.badges { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.badges img { height: 20px; }

.canon { list-style: none; margin: 16px 0 0; padding: 0; }
.canon li { display: flex; gap: 12px; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.canon li:last-child { border-bottom: 0; }
.canon .k { flex: 0 0 160px; color: var(--muted); }
.canon a { word-break: break-all; }

table.checks { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 13px; }
table.checks th, table.checks td { border-bottom: 1px solid var(--line); text-align: left; padding: 6px 8px; vertical-align: top; }
table.checks th { color: var(--muted); font-weight: 600; }
table.checks td[data-check-state].live { color: var(--live); }
table.checks td[data-check-state].review { color: var(--review); }
table.checks td[data-check-state].muted { color: var(--muted); }
.snapshot { color: var(--muted); }

.chat { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.chat .log { min-height: 120px; max-height: 320px; overflow: auto; font-size: 15px; }
.chat .msg { padding: 8px 10px; border-radius: 8px; margin: 6px 0; }
.chat .msg.user { background: var(--bubble-user); }
.chat .msg.rail { background: var(--bubble-rail); border-left: 3px solid var(--ember); }
.chat form { display: flex; gap: 8px; margin-top: 12px; }
.chat input { flex: 1; padding: 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); font: inherit; }
.chat .chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0 0; }
.chat .chips button { background: transparent; border: 1px solid var(--line); color: var(--muted); border-radius: 999px; padding: 6px 10px; font: 13px var(--sans); cursor: pointer; }
.chat .chips button:hover { color: var(--ink); border-color: var(--ember); }

footer { padding: 40px 0 64px; color: var(--muted); font-size: 14px; }
footer .perimeter { max-width: 80ch; }
footer .links { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 12px; }
footer .follow { margin-top: 8px; }
footer .follow .k { color: var(--muted); }

@media (max-width: 800px) {
  section.block .grid { grid-template-columns: 1fr; }
  header.top nav { display: none; }
  .steps { grid-template-columns: 1fr; }
}